Added molang TransformationRequirement

Implemented action-effect driven temporary form reversion and custom Schedulables in action effects
Moved transformation progress to a common location and reduced the Transformation tree complexity. Progress works for forms
2026-06-12 15:18:51 +10:00 · 2026-06-12 14:42:14 +10:00 · 2026-06-12 12:22:15 +10:00 · 2026-06-08 09:01:24 +10:00 · 2026-06-04 18:27:37 +10:00 · 2026-06-04 18:08:52 +10:00
883 changed files with 6431 additions and 5018 deletions
@@ -1,9 +1,9 @@

-import utilities.isSnapshot
-import utilities.version
 import java.time.OffsetDateTime
 import java.time.ZoneOffset
 import java.time.format.DateTimeFormatter
+import utilities.isSnapshot
+import utilities.version

 /*
 *
@@ -20,7 +20,6 @@ import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;

 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Objects;

@Mixin(ClientPacketListener.class)
@@ -10,9 +10,7 @@ package com.cobblemon.mod.common.mixin.accessor;

 import net.minecraft.client.gui.components.StateSwitchingButton;
 import net.minecraft.client.gui.screens.recipebook.RecipeBookComponent;
-import net.minecraft.network.chat.Component;
 import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Mutable;
 import org.spongepowered.asm.mixin.gen.Accessor;

@Mixin(RecipeBookComponent.class)
@@ -15,11 +15,9 @@ import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
 import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
 import com.llamalad7.mixinextras.sugar.Local;
 import net.minecraft.core.BlockPos;
-import net.minecraft.core.Direction;
 import net.minecraft.core.NonNullList;
 import net.minecraft.world.Containers;
 import net.minecraft.world.item.ItemStack;
-import net.minecraft.world.item.Items;
 import net.minecraft.world.item.alchemy.PotionBrewing;
 import net.minecraft.world.item.crafting.RecipeHolder;
 import net.minecraft.world.item.crafting.RecipeManager;
@@ -34,6 +32,7 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;

 import java.util.List;
 import java.util.Optional;
+
@Mixin(BrewingStandBlockEntity.class)
 public class BrewingStandBlockEntityMixin {

@@ -9,17 +9,11 @@
 package com.cobblemon.mod.common.mixin.brewing;

 import com.cobblemon.mod.common.duck.RecipeAwareSlot;
-import com.cobblemon.mod.common.item.crafting.brewingstand.BrewingStandRecipe;
-import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
-import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
-import com.llamalad7.mixinextras.sugar.Local;
 import net.minecraft.world.Container;
 import net.minecraft.world.entity.player.Inventory;
-import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.BrewingStandMenu;
 import net.minecraft.world.inventory.ContainerData;
 import net.minecraft.world.inventory.Slot;
-import net.minecraft.world.item.ItemStack;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
@@ -13,7 +13,6 @@ import com.cobblemon.mod.common.item.crafting.brewingstand.BrewingStandRecipe;
 import net.minecraft.world.inventory.BrewingStandMenu;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.crafting.RecipeManager;
-import net.minecraft.world.level.Level;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Unique;
 import org.spongepowered.asm.mixin.injection.At;
@@ -19,7 +19,6 @@ import net.minecraft.client.Camera;
 import net.minecraft.world.entity.Entity;
 import net.minecraft.world.level.BlockGetter;
 import net.minecraft.world.phys.Vec3;
-import org.joml.Quaternionf;
 import org.joml.Vector3f;
 import org.spongepowered.asm.mixin.Final;
 import org.spongepowered.asm.mixin.Mixin;
@@ -10,9 +10,7 @@ package com.cobblemon.mod.common.mixin.client;

 import com.cobblemon.mod.common.CobblemonRecipeCategories;
 import com.cobblemon.mod.common.item.crafting.CookingPotBookCategory;
-import com.cobblemon.mod.common.item.crafting.CookingPotRecipe;
 import com.cobblemon.mod.common.item.crafting.CookingPotRecipeBase;
-import com.cobblemon.mod.common.item.crafting.CookingPotShapelessRecipe;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Maps;
@@ -97,10 +97,10 @@ import com.cobblemon.mod.common.pokemon.Pokemon
 import com.cobblemon.mod.common.pokemon.aspects.ALPHA_ASPECT
 import com.cobblemon.mod.common.pokemon.aspects.CHARACTERISTIC_RAINBOW_ASPECT
 import com.cobblemon.mod.common.pokemon.aspects.COSMETIC_SLOT_ASPECT
+import com.cobblemon.mod.common.pokemon.aspects.FORM_ASPECTS
 import com.cobblemon.mod.common.pokemon.aspects.GENDER_ASPECT
 import com.cobblemon.mod.common.pokemon.aspects.MARK_ASPECT
 import com.cobblemon.mod.common.pokemon.aspects.SHINY_ASPECT
-import com.cobblemon.mod.common.pokemon.evolution.variants.BlockClickEvolution
 import com.cobblemon.mod.common.pokemon.feature.SlowpokeTailRegrowthSpeciesFeature
 import com.cobblemon.mod.common.pokemon.feature.SlowpokeTailRegrowthSpeciesFeatureProvider
 import com.cobblemon.mod.common.pokemon.feature.TagSeasonResolver
@@ -114,6 +114,7 @@ import com.cobblemon.mod.common.pokemon.properties.NoAIProperty
 import com.cobblemon.mod.common.pokemon.properties.UnaspectPropertyType
 import com.cobblemon.mod.common.pokemon.properties.UncatchableProperty
 import com.cobblemon.mod.common.pokemon.stat.CobblemonStatProvider
+import com.cobblemon.mod.common.pokemon.transformation.triggers.BlockClickTrigger
 import com.cobblemon.mod.common.starter.CobblemonStarterHandler
 import com.cobblemon.mod.common.util.*
 import com.cobblemon.mod.common.world.feature.CobblemonPlacedFeatures
@@ -272,13 +273,8 @@ object Cobblemon {
        PlatformEvents.RIGHT_CLICK_BLOCK.subscribe { event ->
            val player = event.player
            val block = player.level().getBlockState(event.pos).block
-            player.party().forEach { pokemon ->
-                pokemon.lockedEvolutions
-                    .filterIsInstance<BlockClickEvolution>()
-                    .forEach { evolution ->
-                        evolution.attemptEvolution(pokemon, BlockClickEvolution.BlockInteractionContext(block, player.level()))
-                    }
-            }
+            val context = BlockClickTrigger.Context(block, player.level())
+            player.party().forEach { pokemon -> pokemon.triggerTransformations<BlockClickTrigger>(context) }
        }

        PlatformEvents.CHANGE_DIMENSION.subscribe {
@@ -320,6 +316,7 @@ object Cobblemon {

        SHINY_ASPECT.register()
        GENDER_ASPECT.register()
+        FORM_ASPECTS.register()
        COSMETIC_SLOT_ASPECT.register()
        CHARACTERISTIC_RAINBOW_ASPECT.register()
        ALPHA_ASPECT.register()
@@ -9,6 +9,7 @@
 package com.cobblemon.mod.common

 import com.bedrockk.molang.Expression
+import com.cobblemon.mod.common.CobblemonBehaviours.autoPokemonBehaviours
 import com.cobblemon.mod.common.CobblemonNetwork.sendPacket
 import com.cobblemon.mod.common.api.ai.CobblemonBehaviour
 import com.cobblemon.mod.common.api.ai.config.BehaviourConfig
@@ -19,16 +20,7 @@ import com.cobblemon.mod.common.api.molang.ExpressionLike
 import com.cobblemon.mod.common.api.npc.configuration.MoLangConfigVariable
 import com.cobblemon.mod.common.api.reactive.SimpleObservable
 import com.cobblemon.mod.common.net.messages.client.data.BehaviourSyncPacket
-import com.cobblemon.mod.common.util.adapters.ActivityAdapter
-import com.cobblemon.mod.common.util.adapters.BehaviourConfigAdapter
-import com.cobblemon.mod.common.util.adapters.ExpressionAdapter
-import com.cobblemon.mod.common.util.adapters.ExpressionLikeAdapter
-import com.cobblemon.mod.common.util.adapters.ExpressionOrEntityVariableAdapter
-import com.cobblemon.mod.common.util.adapters.IdentifierAdapter
-import com.cobblemon.mod.common.util.adapters.MemoryModuleTypeAdapter
-import com.cobblemon.mod.common.util.adapters.SensorTypeAdapter
-import com.cobblemon.mod.common.util.adapters.TaskConfigAdapter
-import com.cobblemon.mod.common.util.adapters.TranslatedTextAdapter
+import com.cobblemon.mod.common.util.adapters.*
 import com.cobblemon.mod.common.util.cobblemonResource
 import com.cobblemon.mod.common.util.endsWith
 import com.google.gson.Gson
@@ -19,7 +19,6 @@ import net.minecraft.server.level.ServerPlayer
 import net.minecraft.server.packs.PackType
 import net.minecraft.server.packs.resources.PreparableReloadListener
 import net.minecraft.tags.TagKey
-import net.minecraft.world.inventory.MenuType
 import net.minecraft.world.level.GameRules
 import net.minecraft.world.level.ItemLike
 import net.minecraft.world.level.biome.Biome
@@ -15,12 +15,12 @@ import com.cobblemon.mod.common.api.moves.animations.ActionEffectContext
 import com.mojang.serialization.Codec
 import com.mojang.serialization.codecs.ListCodec
 import com.mojang.serialization.codecs.PrimitiveCodec
+import java.util.Optional
+import java.util.UUID
 import net.minecraft.core.BlockPos
-import net.minecraft.core.GlobalPos
 import net.minecraft.core.UUIDUtil
 import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.ai.memory.MemoryModuleType
-import java.util.*

 object CobblemonMemories {
    val memories = mutableMapOf<String, MemoryModuleType<*>>()
@@ -106,6 +106,9 @@ import com.cobblemon.mod.common.net.messages.client.pokemon.update.evolution.Add
 import com.cobblemon.mod.common.net.messages.client.pokemon.update.evolution.ClearEvolutionsPacket
 import com.cobblemon.mod.common.net.messages.client.pokemon.update.evolution.ClientboundSeatAssignmentPacket
 import com.cobblemon.mod.common.net.messages.client.pokemon.update.evolution.RemoveEvolutionPacket
+import com.cobblemon.mod.common.net.messages.client.pokemon.update.form.AddFormPacket
+import com.cobblemon.mod.common.net.messages.client.pokemon.update.form.ClearFormsPacket
+import com.cobblemon.mod.common.net.messages.client.pokemon.update.form.RemoveFormPacket
 import com.cobblemon.mod.common.net.messages.client.settings.OpenCobblemonConfigScreenPacket
 import com.cobblemon.mod.common.net.messages.client.settings.ServerSettingsPacket
 import com.cobblemon.mod.common.net.messages.client.sound.UnvalidatedPlaySoundS2CPacket
@@ -191,6 +194,8 @@ import com.cobblemon.mod.common.net.messages.server.pokemon.update.SetItemHidden
 import com.cobblemon.mod.common.net.messages.server.pokemon.update.SetMarkingsPacket
 import com.cobblemon.mod.common.net.messages.server.pokemon.update.SetNicknamePacket
 import com.cobblemon.mod.common.net.messages.server.pokemon.update.evolution.AcceptEvolutionPacket
+import com.cobblemon.mod.common.net.messages.server.pokemon.update.form.AcceptFormPacket
+import com.cobblemon.mod.common.net.messages.server.pokemon.update.form.RevertFormPacket
 import com.cobblemon.mod.common.net.messages.server.riding.DismountPokemonPacket
 import com.cobblemon.mod.common.net.messages.server.riding.ServerboundUpdateDriverInputPacket
 import com.cobblemon.mod.common.net.messages.server.riding.ServerboundUpdatePassengerPositionPacket
@@ -208,9 +213,11 @@ import com.cobblemon.mod.common.net.messages.server.trade.ChangeTradeAcceptanceP
 import com.cobblemon.mod.common.net.messages.server.trade.OfferTradePacket
 import com.cobblemon.mod.common.net.messages.server.trade.PerformTradePacket
 import com.cobblemon.mod.common.net.messages.server.trade.UpdateTradeOfferPacket
+import com.cobblemon.mod.common.net.serverhandling.AcceptFormHandler
 import com.cobblemon.mod.common.net.serverhandling.ChallengeHandler
 import com.cobblemon.mod.common.net.serverhandling.ChallengeResponseHandler
 import com.cobblemon.mod.common.net.serverhandling.RequestInteractionsHandler
+import com.cobblemon.mod.common.net.serverhandling.RevertFormHandler
 import com.cobblemon.mod.common.net.serverhandling.battle.BattleSelectActionsHandler
 import com.cobblemon.mod.common.net.serverhandling.battle.RemoveSpectatorHandler
 import com.cobblemon.mod.common.net.serverhandling.battle.SpectateBattleHandler
@@ -501,6 +508,11 @@ object CobblemonNetwork {
        // Pokédex scanning
        list.add(PacketRegisterInfo(ServerConfirmedRegisterPacket.ID, ServerConfirmedRegisterPacket::decode, ServerConfirmedRegisterHandler))

+        // Form packets
+        list.add(PacketRegisterInfo(AddFormPacket.ID, AddFormPacket::decode, PokemonUpdatePacketHandler()))
+        list.add(PacketRegisterInfo(ClearFormsPacket.ID, ClearFormsPacket::decode, PokemonUpdatePacketHandler()))
+        list.add(PacketRegisterInfo(RemoveFormPacket.ID, RemoveFormPacket::decode, PokemonUpdatePacketHandler()))
+
        // Riding
        list.add(PacketRegisterInfo(ClientboundUpdateRidingStatePacket.ID, ClientboundUpdateRidingStatePacket::decode, ClientboundUpdateRidingStateHandler))
        list.add(PacketRegisterInfo(ClientboundUpdateDriverInputPacket.ID, ClientboundUpdateDriverInputPacket::decode, ClientboundUpdateDriverInputHandler))
@@ -616,6 +628,10 @@ object CobblemonNetwork {
        // NPC packets
        list.add(PacketRegisterInfo(SaveNPCPacket.ID, SaveNPCPacket::decode, SaveNPCHandler))

+        // Form Packets
+        list.add(PacketRegisterInfo(AcceptFormPacket.ID, AcceptFormPacket::decode, AcceptFormHandler))
+        list.add(PacketRegisterInfo(RevertFormPacket.ID, RevertFormPacket::decode, RevertFormHandler))
+
        // Riding packet(s)
        list.add(PacketRegisterInfo(ServerboundUpdateOrientationPacket.ID, ServerboundUpdateOrientationPacket::decode, ServerboundUpdateOrientationHandler))
        list.add(PacketRegisterInfo(ServerboundUpdateRidingStatePacket.ID, ServerboundUpdateRidingStatePacket::decode, ServerboundUpdateRidingStateHandler))
@@ -9,9 +9,9 @@
 package com.cobblemon.mod.common

 import com.cobblemon.mod.common.entity.pokemon.ai.sensors.*
-import com.cobblemon.mod.common.pokemon.ai.PokemonDisturbancesSensor
 import com.cobblemon.mod.common.entity.sensor.BattlingPokemonSensor
 import com.cobblemon.mod.common.entity.sensor.NPCBattlingSensor
+import com.cobblemon.mod.common.pokemon.ai.PokemonDisturbancesSensor
 import java.util.function.Supplier
 import net.minecraft.world.entity.Entity
 import net.minecraft.world.entity.ai.sensing.Sensor
@@ -8,6 +8,7 @@

 package com.cobblemon.mod.common

+import java.util.Optional
 import net.minecraft.core.registries.BuiltInRegistries
 import net.minecraft.util.RandomSource
 import net.minecraft.world.entity.Entity
@@ -18,7 +19,6 @@ import net.minecraft.world.item.ItemStack
 import net.minecraft.world.item.Items
 import net.minecraft.world.item.trading.ItemCost
 import net.minecraft.world.item.trading.MerchantOffer
-import java.util.Optional

 /**
 * A generator for various trade offers in the mod.
@@ -11,10 +11,10 @@ package com.cobblemon.mod.common.advancement.criterion
 import com.cobblemon.mod.common.util.cobblemonResource
 import com.mojang.serialization.Codec
 import com.mojang.serialization.codecs.RecordCodecBuilder
+import java.util.Optional
 import net.minecraft.advancements.critereon.ContextAwarePredicate
 import net.minecraft.resources.ResourceLocation
 import net.minecraft.server.level.ServerPlayer
-import java.util.Optional

 class AspectCriterion(
    playerCtx: Optional<ContextAwarePredicate>,
@@ -14,8 +14,8 @@ import com.mojang.serialization.codecs.RecordCodecBuilder
 import java.util.Optional
 import net.minecraft.advancements.critereon.ContextAwarePredicate
 import net.minecraft.advancements.critereon.EntityPredicate
-import net.minecraft.server.level.ServerPlayer
 import net.minecraft.resources.ResourceLocation
+import net.minecraft.server.level.ServerPlayer

 class CastPokeRodContext(val baitId: ResourceLocation)

@@ -10,10 +10,10 @@ package com.cobblemon.mod.common.advancement.criterion

 import com.mojang.serialization.Codec
 import com.mojang.serialization.codecs.RecordCodecBuilder
+import java.util.Optional
 import net.minecraft.advancements.critereon.ContextAwarePredicate
 import net.minecraft.advancements.critereon.EntityPredicate
 import net.minecraft.server.level.ServerPlayer
-import java.util.Optional

 /**
 * A context that is used when you require a [CountableContext] along with some type string.
@@ -14,8 +14,8 @@ import com.mojang.serialization.codecs.RecordCodecBuilder
 import java.util.Optional
 import net.minecraft.advancements.critereon.ContextAwarePredicate
 import net.minecraft.advancements.critereon.EntityPredicate
-import net.minecraft.server.level.ServerPlayer
 import net.minecraft.resources.ResourceLocation
+import net.minecraft.server.level.ServerPlayer

 class ReelInPokemonContext(val species : ResourceLocation, val baitId: ResourceLocation)

@@ -9,6 +9,7 @@
 package com.cobblemon.mod.common.api.abilities

 import com.cobblemon.mod.common.api.Priority
+import com.cobblemon.mod.common.api.data.ShowdownIdentifiable
 import com.cobblemon.mod.common.util.codec.CodecUtils
 import com.google.gson.JsonObject
 import com.mojang.serialization.Codec
@@ -25,7 +26,7 @@ class AbilityTemplate(
    var builder: (AbilityTemplate, forced: Boolean, priority: Priority) -> Ability = { template, forced, priority -> Ability(template, forced, priority) },
    val displayName: String = "cobblemon.ability.$name",
    val description: String = "cobblemon.ability.$name.desc"
-) {
+) : ShowdownIdentifiable {
    /**
     * Returns the Ability or if applicable the extension connected to this template
     */
@@ -45,6 +46,8 @@ class AbilityTemplate(
     */
    fun create(json: JsonObject) = create().loadFromJSON(json)

+    override fun showdownId(): String = ShowdownIdentifiable.REGEX.replace(this.name.lowercase(), "")
+
    companion object {

        @JvmStatic
@@ -18,7 +18,6 @@ import com.cobblemon.mod.common.api.molang.MoLangFunctions.addStandardFunctions
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.setup
 import com.cobblemon.mod.common.api.molang.ObjectValue
-import com.cobblemon.mod.common.api.scripting.CobblemonScripts
 import com.cobblemon.mod.common.entity.MoLangScriptingEntity
 import com.cobblemon.mod.common.util.activityRegistry
 import com.cobblemon.mod.common.util.asIdentifierDefaultingNamespace
@@ -13,7 +13,6 @@ import com.cobblemon.mod.common.api.ai.config.BehaviourConfig
 import com.cobblemon.mod.common.api.molang.ExpressionLike
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.setup
-import com.cobblemon.mod.common.api.scripting.CobblemonScripts
 import com.cobblemon.mod.common.util.asTranslated
 import com.cobblemon.mod.common.util.resolve
 import com.cobblemon.mod.common.util.withQueryValue
@@ -13,7 +13,6 @@ import com.cobblemon.mod.common.util.getBooleanOrNull
 import com.cobblemon.mod.common.util.getDoubleOrNull
 import kotlin.math.sqrt
 import net.minecraft.core.BlockPos
-import net.minecraft.world.entity.PathfinderMob

 /**
 * Used to maintain some settings around how the entity should wander this tick. The idea is you
@@ -8,16 +8,12 @@

 package com.cobblemon.mod.common.api.ai.config

-import com.bedrockk.molang.runtime.MoLangRuntime
 import com.cobblemon.mod.common.api.ai.BehaviourConfigurationContext
 import com.cobblemon.mod.common.api.ai.ExpressionOrEntityVariable
-import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
-import com.cobblemon.mod.common.api.molang.MoLangFunctions.setup
 import com.cobblemon.mod.common.api.npc.configuration.MoLangConfigVariable
 import com.cobblemon.mod.common.util.asExpression
 import com.cobblemon.mod.common.util.cobblemonResource
 import com.cobblemon.mod.common.util.resolveBoolean
-import com.cobblemon.mod.common.util.withQueryValue
 import net.minecraft.resources.ResourceLocation
 import net.minecraft.world.entity.LivingEntity

@@ -11,13 +11,8 @@ package com.cobblemon.mod.common.api.ai.config.task
 import com.cobblemon.mod.common.api.ai.BehaviourConfigurationContext
 import com.cobblemon.mod.common.api.ai.ExpressionOrEntityVariable
 import com.cobblemon.mod.common.api.ai.asVariables
-import com.cobblemon.mod.common.api.molang.ExpressionLike
-import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
 import com.cobblemon.mod.common.util.asExpression
-import com.cobblemon.mod.common.util.asExpressionLike
-import com.cobblemon.mod.common.util.resolveBoolean
 import com.cobblemon.mod.common.util.weightedSelection
-import com.cobblemon.mod.common.util.withQueryValue
 import com.mojang.datafixers.util.Either
 import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.ai.behavior.BehaviorControl
@@ -8,12 +8,10 @@

 package com.cobblemon.mod.common.api.ai.config.task

-import com.bedrockk.molang.runtime.MoLangRuntime
 import com.cobblemon.mod.common.CobblemonMemories
 import com.cobblemon.mod.common.api.ai.BehaviourConfigurationContext
 import com.cobblemon.mod.common.api.ai.WrapperLivingEntityTask.Companion.wrapped
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
-import com.cobblemon.mod.common.api.molang.MoLangFunctions.setup
 import com.cobblemon.mod.common.api.npc.configuration.MoLangConfigVariable
 import com.cobblemon.mod.common.util.mainThreadRuntime
 import com.cobblemon.mod.common.util.resolveBoolean
@@ -10,8 +10,6 @@ package com.cobblemon.mod.common.api.ai.config.task

 import com.cobblemon.mod.common.api.ai.BehaviourConfigurationContext
 import com.cobblemon.mod.common.api.ai.asVariables
-import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
-import com.cobblemon.mod.common.util.withQueryValue
 import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.ai.behavior.BehaviorControl
 import net.minecraft.world.entity.ai.behavior.StopBeingAngryIfTargetDead
@@ -9,9 +9,7 @@
 package com.cobblemon.mod.common.api.ai.config.task

 import com.cobblemon.mod.common.api.ai.BehaviourConfigurationContext
-import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
 import com.cobblemon.mod.common.api.npc.configuration.MoLangConfigVariable
-import com.cobblemon.mod.common.util.withQueryValue
 import net.minecraft.world.Difficulty
 import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.ai.behavior.declarative.BehaviorBuilder
@@ -15,7 +15,6 @@ import com.cobblemon.mod.common.api.npc.configuration.MoLangConfigVariable
 import com.cobblemon.mod.common.entity.npc.ai.SwitchToBattleTask
 import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.ai.behavior.BehaviorControl
-import net.minecraft.world.entity.ai.memory.MemoryModuleType

 class SwitchToNPCBattleTaskConfig : SingleTaskConfig {
    override fun getVariables(entity: LivingEntity, behaviourConfigurationContext: BehaviourConfigurationContext) = emptyList<MoLangConfigVariable>()
@@ -10,8 +10,6 @@ package com.cobblemon.mod.common.api.ai.config.task

 import com.cobblemon.mod.common.api.ai.BehaviourConfigurationContext
 import com.cobblemon.mod.common.api.ai.asVariables
-import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
-import com.cobblemon.mod.common.util.withQueryValue
 import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.PathfinderMob
 import net.minecraft.world.entity.ai.behavior.BehaviorControl
@@ -10,8 +10,6 @@ package com.cobblemon.mod.common.api.ai.config.task

 import com.cobblemon.mod.common.api.ai.BehaviourConfigurationContext
 import com.cobblemon.mod.common.api.ai.asVariables
-import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
-import com.cobblemon.mod.common.util.withQueryValue
 import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.PathfinderMob
 import net.minecraft.world.entity.ai.behavior.BehaviorControl
@@ -25,7 +25,6 @@ import net.minecraft.world.entity.ai.behavior.BehaviorControl
 import net.minecraft.world.entity.ai.behavior.declarative.BehaviorBuilder
 import net.minecraft.world.entity.ai.behavior.declarative.Trigger
 import net.minecraft.world.entity.ai.memory.MemoryModuleType
-import net.minecraft.world.entity.ai.memory.MemoryStatus
 import net.minecraft.world.entity.ai.sensing.SensorType

 /**
@@ -22,6 +22,7 @@ import com.cobblemon.mod.common.util.mainThreadRuntime
 import com.cobblemon.mod.common.util.resolveFloat
 import com.cobblemon.mod.common.util.withQueryValue
 import com.mojang.datafixers.util.Either
+import kotlin.math.ceil
 import net.minecraft.core.BlockPos
 import net.minecraft.world.entity.LivingEntity
 import net.minecraft.world.entity.PathfinderMob
@@ -34,7 +35,6 @@ import net.minecraft.world.entity.ai.memory.MemoryModuleType
 import net.minecraft.world.level.material.Fluids
 import net.minecraft.world.level.pathfinder.PathType
 import net.minecraft.world.phys.Vec3
-import kotlin.math.ceil

 class WaterWanderTaskConfig : SingleTaskConfig {
    val condition = booleanVariable(WANDER, "water_wanders", true).asExpressible()
@@ -54,9 +54,9 @@ import com.cobblemon.mod.common.net.messages.client.battle.BattleEndPacket
 import com.cobblemon.mod.common.net.messages.client.battle.BattleMakeChoicePacket
 import com.cobblemon.mod.common.net.messages.client.battle.BattleMessagePacket
 import com.cobblemon.mod.common.net.messages.client.battle.BattleQueueRequestPacket
-import com.cobblemon.mod.common.pokemon.evolution.progress.DefeatEvolutionProgress
-import com.cobblemon.mod.common.pokemon.evolution.progress.LastBattleCriticalHitsEvolutionProgress
-import com.cobblemon.mod.common.pokemon.requirements.DefeatRequirement
+import com.cobblemon.mod.common.pokemon.transformation.progress.DefeatTransformationProgress
+import com.cobblemon.mod.common.pokemon.transformation.progress.LastBattleCriticalHitsTransformationProgress
+import com.cobblemon.mod.common.pokemon.transformation.requirements.DefeatRequirement
 import com.cobblemon.mod.common.util.battleLang
 import com.cobblemon.mod.common.util.getPlayer
 import com.cobblemon.mod.common.util.giveOrDropItemStack
@@ -97,8 +97,8 @@ open class PokemonBattle(
        this.actors.forEach { actor ->
            actor.battle = this
            actor.pokemonList.forEach { battlePokemon ->
-                battlePokemon.effectedPokemon.evolutionProxy.current().progress()
-                    .filterIsInstance<LastBattleCriticalHitsEvolutionProgress>()
+                battlePokemon.effectedPokemon.requirementProgress
+                    .filterIsInstance<LastBattleCriticalHitsTransformationProgress>()
                    .forEach { it.reset() }
            }
        }
@@ -271,12 +271,13 @@ open class PokemonBattle(
                        val facedFainted = opponentPokemon.facedOpponents.contains(faintedPokemon)
                        val pokemon = opponentPokemon.effectedPokemon
                        if (facedFainted) {
-                            pokemon.lockedEvolutions.forEach { evolution ->
-                                evolution.requirements.filterIsInstance<DefeatRequirement>().forEach { defeatRequirement ->
-                                    if (defeatRequirement.target.matches(faintedPokemon.effectedPokemon)) {
-                                        val progress = pokemon.evolutionProxy.current().progressFirstOrCreate({ it is DefeatEvolutionProgress && it.currentProgress().target == defeatRequirement.target }) { DefeatEvolutionProgress() }
-                                        progress.updateProgress(DefeatEvolutionProgress.Progress(defeatRequirement.target, progress.currentProgress().amount + 1))
-                                    }
+                            if (pokemon.hasMatchingRequirement<DefeatRequirement>({ it.target.matches(faintedPokemon.effectedPokemon) })) {
+                                val requiredPokemonProperties = pokemon.getRelevantRequirements<DefeatRequirement> { it.target.matches(faintedPokemon.effectedPokemon) }
+                                    .map { it.target }
+                                    .distinctBy { it.asString() }
+                                for (props in requiredPokemonProperties) {
+                                    val progress = pokemon.progressFirstOrCreate({ it is DefeatTransformationProgress && it.currentProgress().target.asString().equals(props.asString(), ignoreCase = true) }, ::DefeatTransformationProgress)
+                                    progress.updateProgress(DefeatTransformationProgress.Progress(props.copy(), progress.currentProgress().amount + 1))
                                }
                            }
                        }
@@ -22,9 +22,9 @@ import com.cobblemon.mod.common.item.battle.BagItem
 import com.cobblemon.mod.common.net.messages.client.battle.BattleApplyPassResponsePacket
 import com.cobblemon.mod.common.net.messages.client.battle.BattleMakeChoicePacket
 import com.cobblemon.mod.common.net.messages.client.battle.BattleMessagePacket
+import java.util.UUID
 import net.minecraft.network.chat.Component
 import net.minecraft.network.chat.MutableComponent
-import java.util.UUID
 import net.minecraft.server.level.ServerPlayer

 abstract class BattleActor(
@@ -21,6 +21,7 @@ import com.cobblemon.mod.common.util.adapters.*
 import com.cobblemon.mod.common.util.cobblemonResource
 import com.google.gson.GsonBuilder
 import com.google.gson.reflect.TypeToken
+import java.awt.Color
 import net.minecraft.advancements.critereon.MinMaxBounds
 import net.minecraft.core.registries.Registries
 import net.minecraft.resources.ResourceLocation
@@ -30,7 +31,6 @@ import net.minecraft.tags.TagKey
 import net.minecraft.world.level.biome.Biome
 import net.minecraft.world.phys.AABB
 import net.minecraft.world.phys.Vec3
-import java.awt.Color

 /**
 * The data registry for [Berry].
@@ -26,10 +26,10 @@ import com.cobblemon.mod.common.util.writeBox
 import com.cobblemon.mod.common.util.writeEnumConstant
 import com.cobblemon.mod.common.util.writeIdentifier
 import com.google.gson.annotations.SerializedName
-import net.minecraft.core.BlockPos
-import net.minecraft.network.RegistryFriendlyByteBuf
 import java.awt.Color
 import java.util.EnumSet
+import net.minecraft.core.BlockPos
+import net.minecraft.network.RegistryFriendlyByteBuf
 import net.minecraft.resources.ResourceLocation
 import net.minecraft.tags.TagKey
 import net.minecraft.world.entity.LivingEntity
@@ -8,11 +8,11 @@

 package com.cobblemon.mod.common.api.drop

-import com.cobblemon.mod.common.api.pokemon.requirement.Requirement
+import com.cobblemon.mod.common.api.pokemon.transformation.requirement.TransformationRequirement
 import com.cobblemon.mod.common.pokemon.Pokemon

 class EvolutionItemDropEntry : ItemDropEntry() {
-    val requirements: MutableSet<Requirement> = mutableSetOf()
+    val requirements: MutableSet<TransformationRequirement> = mutableSetOf()

    override fun canDrop(pokemon: Pokemon?): Boolean = pokemon != null && requirements.all { it.check(pokemon) }
 }
@@ -48,6 +48,10 @@ import com.cobblemon.mod.common.api.events.pokemon.evolution.EvolutionAcceptedEv
 import com.cobblemon.mod.common.api.events.pokemon.evolution.EvolutionCompleteEvent
 import com.cobblemon.mod.common.api.events.pokemon.evolution.EvolutionDisplayEvent
 import com.cobblemon.mod.common.api.events.pokemon.evolution.EvolutionTestedEvent
+import com.cobblemon.mod.common.api.events.pokemon.form.FormAcceptedEvent
+import com.cobblemon.mod.common.api.events.pokemon.form.FormCompleteEvent
+import com.cobblemon.mod.common.api.events.pokemon.form.FormDisplayEvent
+import com.cobblemon.mod.common.api.events.pokemon.form.FormTestedEvent
 import com.cobblemon.mod.common.api.events.pokemon.healing.PokemonHealedEvent
 import com.cobblemon.mod.common.api.events.pokemon.interaction.ExperienceCandyUseEvent
 import com.cobblemon.mod.common.api.events.pokemon.interaction.PokemonInteractionGUICreationEvent
@@ -103,6 +107,18 @@ object CobblemonEvents {
    @JvmField
    val EVOLUTION_COMPLETE = EventObservable<EvolutionCompleteEvent>()

+    @JvmField
+    val FORM_ACCEPTED = CancelableObservable<FormAcceptedEvent>()
+
+    @JvmField
+    val FORM_DISPLAY = EventObservable<FormDisplayEvent>()
+
+    @JvmField
+    val FORM_TESTED = EventObservable<FormTestedEvent>()
+
+    @JvmField
+    val FORM_COMPLETE = EventObservable<FormCompleteEvent>()
+
    @JvmField
    val POKEMON_NICKNAMED = CancelableObservable<PokemonNicknamedEvent>()

@@ -15,9 +15,7 @@ import com.cobblemon.mod.common.api.battles.model.actor.ActorType
 import com.cobblemon.mod.common.api.battles.model.actor.BattleActor
 import com.cobblemon.mod.common.api.battles.model.actor.EntityBackedBattleActor
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMostSpecificMoLangValue
-import com.cobblemon.mod.common.battles.actor.PlayerBattleActor
 import com.cobblemon.mod.common.entity.MoLangScriptingEntity
-import com.cobblemon.mod.common.entity.npc.NPCBattleActor
 import com.cobblemon.mod.common.util.asArrayValue
 import net.minecraft.world.entity.LivingEntity

@@ -12,7 +12,6 @@ import com.bedrockk.molang.runtime.value.DoubleValue
 import com.cobblemon.mod.common.api.events.Cancelable
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMoLangValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.moLangFunctionMap
-import com.cobblemon.mod.common.entity.pokemon.PokemonEntity
 import com.cobblemon.mod.common.pokemon.Pokemon
 import com.cobblemon.mod.common.trade.TradeParticipant
 import com.cobblemon.mod.common.util.getPlayer
@@ -12,8 +12,8 @@ import com.bedrockk.molang.runtime.value.MoValue
 import com.cobblemon.mod.common.api.events.Cancelable
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMoLangValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.moLangFunctionMap
-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
 import com.cobblemon.mod.common.pokemon.Pokemon
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution

 /**
 * Fired when an evolution is accepted.
@@ -10,8 +10,8 @@ package com.cobblemon.mod.common.api.events.pokemon.evolution

 import com.bedrockk.molang.runtime.value.MoValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMoLangValue
-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
 import com.cobblemon.mod.common.pokemon.Pokemon
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution

 /**
 * Fired after an evolution finishes.
@@ -8,9 +8,9 @@

 package com.cobblemon.mod.common.api.events.pokemon.evolution

-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
-import com.cobblemon.mod.common.api.pokemon.evolution.EvolutionDisplay
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution
 import com.cobblemon.mod.common.pokemon.Pokemon
+import com.cobblemon.mod.common.pokemon.transformation.evolution.EvolutionDisplay

 /**
 * Fired before an evolution is sent to clients.
@@ -8,7 +8,7 @@

 package com.cobblemon.mod.common.api.events.pokemon.evolution

-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution
 import com.cobblemon.mod.common.pokemon.Pokemon

 /**
@@ -12,8 +12,8 @@ import com.bedrockk.molang.runtime.value.DoubleValue
 import com.bedrockk.molang.runtime.value.MoValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMoLangValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.moLangFunctionMap
-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
 import com.cobblemon.mod.common.pokemon.Pokemon
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution
 import com.cobblemon.mod.common.util.getBoolean

 /**
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2023 Cobblemon Contributors
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+package com.cobblemon.mod.common.api.events.pokemon.form
+
+import com.bedrockk.molang.runtime.value.StringValue
+import com.cobblemon.mod.common.api.events.Cancelable
+import com.cobblemon.mod.common.api.molang.MoLangFunctions.moLangFunctionMap
+import com.cobblemon.mod.common.pokemon.Pokemon
+import com.cobblemon.mod.common.pokemon.transformation.form.TemporaryForm
+
+/**
+ * Fired when a temporary form change is accepted.
+ * Cancelling will not notify users nor remove the form from the pending list.
+ *
+ * @param pokemon The [Pokemon] about to change form.
+ * @param form The [TemporaryForm] being used.
+ *
+ * @author Hiroku
+ * @since June 3rd, 2026
+ */
+data class FormAcceptedEvent(
+    override val pokemon: Pokemon,
+    override val form: TemporaryForm
+) : Cancelable(), FormEvent {
+    val context = mutableMapOf(
+        "pokemon" to pokemon.struct,
+        "form" to StringValue(form.formOnlyShowdownId())
+    )
+
+    val functions = moLangFunctionMap(cancelFunc)
+}
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2023 Cobblemon Contributors
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+package com.cobblemon.mod.common.api.events.pokemon.form
+
+import com.bedrockk.molang.runtime.value.StringValue
+import com.cobblemon.mod.common.pokemon.Pokemon
+import com.cobblemon.mod.common.pokemon.transformation.form.TemporaryForm
+
+/**
+ * Fired after a temporary form change finishes.
+ *
+ * @param pokemon The [Pokemon] resulting from the form change.
+ * @param form The [TemporaryForm] that was used.
+ *
+ * @author Hiroku
+ * @since June 3rd, 2026
+ */
+data class FormCompleteEvent(
+    /** The [Pokemon] that did the form change. */
+    override val pokemon: Pokemon,
+    /** The [TemporaryForm] that was used. */
+    override val form: TemporaryForm
+) : FormEvent {
+    val context = mutableMapOf(
+        "pokemon" to pokemon.struct,
+        "form" to StringValue(form.formOnlyShowdownId())
+    )
+}
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2023 Cobblemon Contributors
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+package com.cobblemon.mod.common.api.events.pokemon.form
+
+import com.bedrockk.molang.runtime.value.StringValue
+import com.cobblemon.mod.common.pokemon.Pokemon
+import com.cobblemon.mod.common.pokemon.transformation.form.FormDisplay
+import com.cobblemon.mod.common.pokemon.transformation.form.TemporaryForm
+
+/**
+ * Fired before a form is sent to clients. For modifications on the actual output when they accept it modify
+ * the [display] directly.
+ *
+ * @param pokemon The [Pokemon] that will change form if this proposition is accepted.
+ * @param display The current [FormDisplay] the client will see.
+ * @param form The [TemporaryForm] being used.
+ *
+ * @author Hiroku
+ * @since June 3rd, 2026
+ */
+data class FormDisplayEvent(
+    override val pokemon: Pokemon,
+    var display: FormDisplay,
+    override val form: TemporaryForm
+) : FormEvent {
+    val context = mutableMapOf(
+        "pokemon" to pokemon.struct,
+        "display" to display.struct,
+        "form" to StringValue(form.formOnlyShowdownId())
+    )
+}
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2023 Cobblemon Contributors
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+package com.cobblemon.mod.common.api.events.pokemon.form
+
+import com.cobblemon.mod.common.pokemon.Pokemon
+import com.cobblemon.mod.common.pokemon.transformation.form.TemporaryForm
+
+/**
+ * The root of the various [TemporaryForm]-related events.
+ */
+interface FormEvent {
+    /** The Pokémon impacted in this event.*/
+    val pokemon: Pokemon
+    /*** The form triggering this event.*/
+    val form: TemporaryForm
+}
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2023 Cobblemon Contributors
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+package com.cobblemon.mod.common.api.events.pokemon.form
+
+import com.bedrockk.molang.runtime.value.DoubleValue
+import com.bedrockk.molang.runtime.value.StringValue
+import com.cobblemon.mod.common.api.molang.MoLangFunctions.moLangFunctionMap
+import com.cobblemon.mod.common.pokemon.Pokemon
+import com.cobblemon.mod.common.pokemon.transformation.form.TemporaryForm
+import com.cobblemon.mod.common.util.getBoolean
+
+/**
+ * An event fired when [TemporaryForm.test] has been performed.
+ * The final state [result] will be the return value of the test function.
+ *
+ * @property pokemon The [Pokemon] being tested against.
+ * @property form The [TemporaryForm] instance performing the test.
+ * @property originalResult The base result from the Cobblemon implementation.
+ * @property result The final value returned by [TemporaryForm.test].
+ */
+data class FormTestedEvent(
+    override val pokemon: Pokemon,
+    override val form: TemporaryForm,
+    val originalResult: Boolean,
+) : FormEvent {
+    var result: Boolean = originalResult
+
+    val context = mutableMapOf(
+        "pokemon" to pokemon.struct,
+        "form" to StringValue(form.formOnlyShowdownId()),
+        "original_result" to DoubleValue(originalResult),
+    )
+
+    val functions = moLangFunctionMap(
+        "result" to { DoubleValue(result) },
+        "set_result" to {
+            result = it.getBoolean(0)
+            DoubleValue.ONE
+        }
+    )
+}
@@ -15,7 +15,6 @@ import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMoLangValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.moLangFunctionMap
 import com.cobblemon.mod.common.api.pokemon.PokemonProperties
 import com.cobblemon.mod.common.pokemon.Pokemon
-import com.cobblemon.mod.common.util.getPlayer
 import net.minecraft.server.level.ServerPlayer

 /**
@@ -8,7 +8,6 @@

 package com.cobblemon.mod.common.api.events.storage

-import com.bedrockk.molang.runtime.value.DoubleValue
 import com.bedrockk.molang.runtime.value.StringValue
 import com.cobblemon.mod.common.api.events.Cancelable
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMoLangValue
@@ -16,9 +16,7 @@ import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMoLangValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.moLangFunctionMap
 import com.cobblemon.mod.common.api.storage.PokemonStore
 import com.cobblemon.mod.common.pokemon.Pokemon
-import com.cobblemon.mod.common.util.getPlayer
 import net.minecraft.server.level.ServerPlayer
-import java.util.UUID

 /**
 * The base of the events around the release of Pokémon from pc or party.
@@ -14,7 +14,7 @@ import com.cobblemon.mod.common.api.data.JsonDataRegistry
 import com.cobblemon.mod.common.api.pokemon.PokemonProperties
 import com.cobblemon.mod.common.api.reactive.SimpleObservable
 import com.cobblemon.mod.common.net.messages.client.data.FossilRegistrySyncPacket
-import com.cobblemon.mod.common.pokemon.evolution.adapters.LegacyItemConditionWrapperAdapter
+import com.cobblemon.mod.common.pokemon.transformation.adapters.LegacyItemConditionWrapperAdapter
 import com.cobblemon.mod.common.util.adapters.IdentifierAdapter
 import com.cobblemon.mod.common.util.adapters.ItemLikeConditionAdapter
 import com.cobblemon.mod.common.util.adapters.pokemonPropertiesShortAdapter
@@ -13,13 +13,13 @@ import com.cobblemon.mod.common.api.conditional.RegistryLikeCondition
 import com.cobblemon.mod.common.api.data.JsonDataRegistry
 import com.cobblemon.mod.common.api.molang.ExpressionLike
 import com.cobblemon.mod.common.api.pokemon.PokemonProperties
-import com.cobblemon.mod.common.api.pokemon.requirement.Requirement
+import com.cobblemon.mod.common.api.pokemon.transformation.requirement.TransformationRequirement
 import com.cobblemon.mod.common.api.reactive.SimpleObservable
 import com.cobblemon.mod.common.entity.pokemon.PokemonEntity
 import com.cobblemon.mod.common.net.messages.client.data.PokemonInteractionsSyncPacket
-import com.cobblemon.mod.common.pokemon.adapters.CobblemonRequirementAdapter
-import com.cobblemon.mod.common.pokemon.evolution.adapters.LegacyItemConditionWrapperAdapter
-import com.cobblemon.mod.common.pokemon.requirements.PokemonPropertiesRequirement
+import com.cobblemon.mod.common.pokemon.transformation.adapters.CobblemonRequirementAdapter
+import com.cobblemon.mod.common.pokemon.transformation.adapters.LegacyItemConditionWrapperAdapter
+import com.cobblemon.mod.common.pokemon.transformation.requirements.PokemonPropertiesRequirement
 import com.cobblemon.mod.common.util.adapters.*
 import com.cobblemon.mod.common.util.cobblemonResource
 import com.google.gson.Gson
@@ -46,7 +46,7 @@ object PokemonInteractions : JsonDataRegistry<PokemonInteractionSet> {
        .registerTypeAdapter(ResourceLocation::class.java, IdentifierAdapter)
        .registerTypeAdapter(PokemonProperties::class.java, pokemonPropertiesShortAdapter)
        .registerTypeAdapter(ItemPredicate::class.java, LegacyItemConditionWrapperAdapter)
-        .registerTypeAdapter(Requirement::class.java, CobblemonRequirementAdapter)
+        .registerTypeAdapter(TransformationRequirement::class.java, CobblemonRequirementAdapter)
        .registerTypeAdapter(InteractionEffect::class.java, InteractionEffectAdapter)
        .registerTypeAdapter(ExpressionLike::class.java, ExpressionLikeAdapter)
        .registerTypeAdapter(TypeToken.getParameterized(RegistryLikeCondition::class.java, Biome::class.java).type, BiomeLikeConditionAdapter)
@@ -12,11 +12,16 @@ import com.bedrockk.molang.runtime.MoLangRuntime
 import com.cobblemon.mod.common.api.molang.ExpressionLike
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMoLangValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.setup
-import com.cobblemon.mod.common.api.pokemon.requirement.Requirement
+import com.cobblemon.mod.common.api.pokemon.transformation.requirement.TransformationRequirement
 import com.cobblemon.mod.common.entity.pokemon.PokemonEntity
 import com.cobblemon.mod.common.net.messages.client.sound.UnvalidatedPlaySoundS2CPacket
-import com.cobblemon.mod.common.pokemon.adapters.CobblemonRequirementAdapter
-import com.cobblemon.mod.common.util.*
+import com.cobblemon.mod.common.pokemon.transformation.adapters.CobblemonRequirementAdapter
+import com.cobblemon.mod.common.util.asExpressionLike
+import com.cobblemon.mod.common.util.giveOrDropItemStack
+import com.cobblemon.mod.common.util.readExpressionLike
+import com.cobblemon.mod.common.util.withPlayerValue
+import com.cobblemon.mod.common.util.withQueryValue
+import com.cobblemon.mod.common.util.writeExpressionLike
 import com.google.gson.annotations.SerializedName
 import net.minecraft.core.registries.Registries
 import net.minecraft.network.FriendlyByteBuf
@@ -29,7 +34,7 @@ import net.minecraft.world.entity.item.ItemEntity
 import net.minecraft.world.item.ItemStack

 data class PokemonInteractionSet(
-    val requirements: List<Requirement> = listOf(),
+    val requirements: List<TransformationRequirement> = listOf(),
    val interactions: List<PokemonInteraction> = listOf(),
 ) {
    fun encode(buffer: FriendlyByteBuf) {
@@ -51,7 +56,7 @@ data class PokemonInteractionSet(
 }

 data class PokemonInteraction(
-    val requirements: List<Requirement> = listOf(),
+    val requirements: List<TransformationRequirement> = listOf(),
    val effects: List<InteractionEffect> = listOf(),
    val cooldown: ExpressionLike = "0".asExpressionLike()
 ) {
@@ -74,7 +74,7 @@ abstract class RequestManager<T : ServerPlayerActionRequest> {
        ?: this.getInboundRequest(receiver.uuid, requestID)

    /** Determines whether [player] can receive a [T]. */
-    open fun isBusy(player: ServerPlayer): Boolean = player.isInBattle() || player.isTrading() || player.party().find { it.entity?.isBusy == true } != null
+    open fun isBusy(player: ServerPlayer): Boolean = player.isBusy() || player.isPartyBusy()

    /** Determines if the [target] is a valid interaction request target. */
    abstract fun isValidInteraction(player: ServerPlayer, target: ServerPlayer): Boolean
@@ -21,34 +21,9 @@ import com.cobblemon.mod.common.api.battles.interpreter.BattleMessage
 import com.cobblemon.mod.common.api.battles.model.PokemonBattle
 import com.cobblemon.mod.common.api.battles.model.actor.BattleActor
 import com.cobblemon.mod.common.api.drop.DropEntry
-import com.cobblemon.mod.common.api.molang.function.BattleActorMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.BattleMessageMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.BattleMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.BiomeMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.BlockMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.DimensionTypeMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.DropEntryMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.EntityMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.EvolutionMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.GeneralMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.ItemStackMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.LivingEntityMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.NPCMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.PCMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.PartyMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.PlayerMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.PokedexMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.PokemonEntityMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.PokemonMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.PokemonPropertiesMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.PokemonStoreMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.ServerMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.SpawnablePositionMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.SpeciesMoLangFunctions
-import com.cobblemon.mod.common.api.molang.function.WorldMoLangFunctions
+import com.cobblemon.mod.common.api.molang.function.*
 import com.cobblemon.mod.common.api.pokedex.AbstractPokedexManager
 import com.cobblemon.mod.common.api.pokemon.PokemonProperties
-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
 import com.cobblemon.mod.common.api.scripting.CobblemonScripts
 import com.cobblemon.mod.common.api.spawning.position.SpawnablePosition
 import com.cobblemon.mod.common.api.storage.PokemonStore
@@ -58,8 +33,10 @@ import com.cobblemon.mod.common.entity.npc.NPCEntity
 import com.cobblemon.mod.common.entity.pokemon.PokemonEntity
 import com.cobblemon.mod.common.pokemon.Pokemon
 import com.cobblemon.mod.common.pokemon.Species
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution
 import com.cobblemon.mod.common.util.effectiveName
 import com.mojang.datafixers.util.Either
+import java.util.function.Function
 import net.minecraft.core.Holder
 import net.minecraft.core.Registry
 import net.minecraft.core.RegistryAccess
@@ -83,14 +60,7 @@ import net.minecraft.world.level.Level
 import net.minecraft.world.level.biome.Biome
 import net.minecraft.world.level.block.Block
 import net.minecraft.world.level.dimension.DimensionType
-import net.minecraft.world.level.levelgen.Heightmap
-import net.minecraft.world.level.pathfinder.PathType
-import net.minecraft.world.level.storage.loot.LootParams
-import net.minecraft.world.level.storage.loot.parameters.LootContextParamSets
-import net.minecraft.world.level.storage.loot.parameters.LootContextParams
-import net.minecraft.world.phys.AABB
 import net.minecraft.world.phys.Vec3
-import java.util.function.Function

 /**
 * Holds a bunch of useful MoLang trickery that can be used or extended in API
@@ -13,7 +13,7 @@ import com.bedrockk.molang.runtime.value.DoubleValue
 import com.bedrockk.molang.runtime.value.StringValue
 import com.cobblemon.mod.common.api.battles.model.PokemonBattle
 import com.cobblemon.mod.common.util.asArrayValue
-import java.util.*
+import java.util.UUID

 object BattleMoLangFunctions : AbstractMoLangFunctionHolder<PokemonBattle>() {
    override fun PokemonBattle.moLangFunctions(): MutableMap<String, (MoParams) -> Any> {
@@ -11,31 +11,34 @@ package com.cobblemon.mod.common.api.molang.function
 import com.bedrockk.molang.runtime.MoParams
 import com.bedrockk.molang.runtime.value.DoubleValue
 import com.cobblemon.mod.common.api.molang.MoLangFunctions.asMoLangValue
-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
-import com.cobblemon.mod.common.pokemon.evolution.variants.ItemInteractionEvolution
-import com.cobblemon.mod.common.pokemon.evolution.variants.LevelUpEvolution
-import com.cobblemon.mod.common.pokemon.evolution.variants.TradeEvolution
+import com.cobblemon.mod.common.api.pokemon.transformation.Transformation
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution
+import com.cobblemon.mod.common.pokemon.transformation.triggers.ItemInteractionTrigger
+import com.cobblemon.mod.common.pokemon.transformation.triggers.LevelUpTrigger
+import com.cobblemon.mod.common.pokemon.transformation.triggers.TradeTrigger

-object EvolutionMoLangFunctions : AbstractMoLangFunctionHolder<Evolution>() {
-    override fun Evolution.moLangFunctions(): MutableMap<String, (MoParams) -> Any> {
+object EvolutionMoLangFunctions : AbstractMoLangFunctionHolder<Transformation>() {
+    override fun Transformation.moLangFunctions(): MutableMap<String, (MoParams) -> Any> {
        val evolution = this
        val map = hashMapOf<String, (MoParams) -> Any>()

-        map["result"] = { evolution.result.asMoLangValue() }
        map["is_optional"] = { DoubleValue(evolution.optional) }
-        map["consumes_held_item"] = { DoubleValue(evolution.consumeHeldItem) }
+        map["reevaluate"] = { DoubleValue(evolution.reevaluate) }

-        when (evolution) {
-            is LevelUpEvolution -> {
-                map["is_level_up"] = { DoubleValue.ONE }
-            }
+        if (evolution is Evolution) {
+            map["result"] = { evolution.result.asMoLangValue() }
+            when (evolution.trigger) {
+                is LevelUpTrigger -> {
+                    map["is_level_up"] = { DoubleValue.ONE }
+                }

-            is TradeEvolution -> {
-                map["is_trade"] = { DoubleValue.ONE }
-            }
+                is TradeTrigger -> {
+                    map["is_trade"] = { DoubleValue.ONE }
+                }

-            is ItemInteractionEvolution -> {
-                map["is_item"] = { DoubleValue.ONE }
+                is ItemInteractionTrigger -> {
+                    map["is_item"] = { DoubleValue.ONE }
+                }
            }
        }

@@ -444,7 +444,7 @@ object PokemonMoLangFunctions : AbstractMoLangFunctionHolder<Pokemon>() {
        map["force_evolve"] = forceEvolve@{ params ->
            val idx = params.getInt(0)
            val evolution = if (idx >= 0) pokemon.evolutions.elementAtOrNull(idx) else return@forceEvolve DoubleValue.ZERO
-            evolution?.forceEvolve(pokemon)
+            evolution?.perform(pokemon)
            StringValue(evolution.toString())
        }

@@ -12,6 +12,8 @@ import com.bedrockk.molang.runtime.struct.MoStruct
 import com.bedrockk.molang.runtime.struct.QueryStruct
 import com.bedrockk.molang.runtime.value.DoubleValue
 import com.bedrockk.molang.runtime.value.StringValue
+import com.cobblemon.mod.common.api.data.ShowdownIdentifiable
+import com.cobblemon.mod.common.api.moves.animations.ActionEffectTimeline
 import com.cobblemon.mod.common.api.moves.categories.DamageCategories
 import com.cobblemon.mod.common.api.moves.categories.DamageCategory
 import com.cobblemon.mod.common.api.types.ElementalType
@@ -55,7 +57,7 @@ open class MoveTemplate(
    val critRatio: Double,
    val effectChances: Array<Double>,
    val weight: Float
-) {
+) : ShowdownIdentifiable {
    val struct: MoStruct by lazy {
        QueryStruct(hashMapOf())
            .addFunction("name") { StringValue(name) }
@@ -163,6 +165,8 @@ open class MoveTemplate(
        return this.elementalType
    }

+    override fun showdownId() = ShowdownIdentifiable.REGEX.replace(this.name.lowercase(), "")
+
    fun getSelectionWeight(form: FormData): Float {
        return if (this in form.signatureMoves) {
            weight * MovesetBuilder.signatureMoveWeightMultiplier
@@ -10,13 +10,17 @@ package com.cobblemon.mod.common.api.moves.animations

 import com.bedrockk.molang.runtime.MoLangRuntime
 import com.cobblemon.mod.common.api.molang.ExpressionLike
+import com.cobblemon.mod.common.api.molang.MoLangFunctions.addStandardFunctions
 import com.cobblemon.mod.common.api.moves.animations.keyframes.ActionEffectKeyframe
+import com.cobblemon.mod.common.api.scheduling.Schedulable
+import com.cobblemon.mod.common.api.scheduling.ServerTaskTracker
 import com.cobblemon.mod.common.entity.npc.NPCEntity
+import com.cobblemon.mod.common.entity.pokemon.PokemonEntity
 import com.cobblemon.mod.common.util.asExpressionLike
 import com.cobblemon.mod.common.util.resolveBoolean
+import java.util.concurrent.CompletableFuture
 import net.minecraft.world.entity.Entity
 import net.minecraft.world.level.Level
-import java.util.concurrent.CompletableFuture

 /**
 * An action effect will run and execute a series of 'keyframes', with each running once
@@ -36,7 +40,7 @@ class ActionEffectTimeline(
    }

    fun run(context: ActionEffectContext): CompletableFuture<Unit> {
-        return if (timeline.isEmpty() || !context.runtime.resolveBoolean(condition)) {
+        val future = if (timeline.isEmpty() || !context.runtime.resolveBoolean(condition)) {
            CompletableFuture.completedFuture(Unit)
        } else {
            val finalFuture = CompletableFuture<Unit>()
@@ -47,6 +51,10 @@ class ActionEffectTimeline(
            it.printStackTrace()
            CompletableFuture.completedFuture(Unit)
        }
+
+        context.future = future
+        future.thenRun { context.getHolds().forEach(context::removeHold) }
+        return future
    }

    fun chainKeyframes(context: ActionEffectContext, iterator: Iterator<ActionEffectKeyframe>, finalFuture: CompletableFuture<Unit>) {
@@ -65,15 +73,45 @@ class ActionEffectTimeline(

 class ActionEffectContext(
    val actionEffect: ActionEffectTimeline,
-    val holds: MutableSet<String> = mutableSetOf(),
+    private val holds: MutableSet<String> = mutableSetOf(),
    val providers: MutableList<Any> = mutableListOf(),
    val runtime: MoLangRuntime,
    var canBeInterrupted: Boolean = false,
    var interrupted: Boolean = false,
    var currentKeyframes: MutableList<ActionEffectKeyframe> = mutableListOf(),
-    var level: Level? = null
+    var level: Level? = null,
+    var holdRemovalCallbacks: MutableMap<String, () -> Unit> = mutableMapOf(),
+    var tracker: Schedulable = ServerTaskTracker
 ) {
+    companion object {
+        fun fromPokemonEntity(
+            actionEffect: ActionEffectTimeline,
+            pokemonEntity: PokemonEntity,
+            runtime: MoLangRuntime = MoLangRuntime().also { it.environment.query.addStandardFunctions() },
+            holds: Collection<String> = emptySet(),
+            holdRemovalCallbacks: Map<String, () -> Unit> = emptyMap()
+        ): ActionEffectContext {
+            return ActionEffectContext(
+                actionEffect = actionEffect,
+                providers = mutableListOf(UsersProvider(listOf(pokemonEntity))),
+                holdRemovalCallbacks = holdRemovalCallbacks.toMutableMap(),
+                holds = holds.toMutableSet(),
+                runtime = runtime,
+                level = pokemonEntity.level()
+            )
+        }
+    }
+
+    lateinit var future: CompletableFuture<Unit>
    inline fun <reified T> findOneProvider() = providers.filterIsInstance<T>().firstOrNull()
+
+    /** Returns a reference to the internal holds set so you can keep an eye on it. */
+    fun getHolds(): Set<String> = holds
+    fun addHold(hold: String) = holds.add(hold)
+    fun removeHold(hold: String) {
+        holds.remove(hold)
+        holdRemovalCallbacks.remove(hold)?.invoke()
+    }
 }

 class UsersProvider(users: List<Entity>): EntityProvider {
@@ -21,7 +21,7 @@ import java.util.concurrent.CompletableFuture
 class AddHoldsActionEffectKeyframe : ActionEffectKeyframe {
    val holds = mutableSetOf<String>()
    override fun play(context: ActionEffectContext): CompletableFuture<Unit> {
-        context.holds.addAll(holds)
+        holds.forEach(context::addHold)
        return CompletableFuture.completedFuture(Unit)
    }
 }
@@ -49,6 +49,6 @@ class AnimationActionEffectKeyframe : ConditionalActionEffectKeyframe(), EntityC
            players.forEach { it.sendPacket(pkt) }
        }

-        return delayedFuture(seconds = delay.resolveFloat(context.runtime))
+        return delayedFuture(seconds = delay.resolveFloat(context.runtime), tracker = context.tracker)
    }
 }
@@ -46,6 +46,6 @@ class EntityMoLangActionEffectKeyframe : ConditionalActionEffectKeyframe(), Enti
            players.forEach { it.sendPacket(pkt) }
        }

-        return delayedFuture(seconds = delay.resolveFloat(context.runtime))
+        return delayedFuture(seconds = delay.resolveFloat(context.runtime), context.tracker)
    }
 }
@@ -18,7 +18,6 @@ import com.cobblemon.mod.common.entity.PosableEntity
 import com.cobblemon.mod.common.net.messages.client.effect.SpawnSnowstormEntityParticlePacket
 import com.cobblemon.mod.common.util.asExpressionLike
 import com.cobblemon.mod.common.util.asIdentifierDefaultingNamespace
-import net.minecraft.commands.arguments.EntityArgument.getPlayers
 import java.util.concurrent.CompletableFuture
 import net.minecraft.server.level.ServerLevel

@@ -79,6 +78,6 @@ class EntityParticlesActionEffectKeyframe : ConditionalActionEffectKeyframe(), E
            }
        }

-        return delayedFuture(seconds = delay.resolveFloat(context.runtime))
+        return delayedFuture(seconds = delay.resolveFloat(context.runtime), context.tracker)
    }
 }
@@ -15,8 +15,8 @@ import com.cobblemon.mod.common.api.moves.animations.UsersProvider
 import com.cobblemon.mod.common.api.scheduling.delayedFuture
 import com.cobblemon.mod.common.util.asExpressionLike
 import com.cobblemon.mod.common.util.asIdentifierDefaultingNamespace
-import net.minecraft.core.registries.Registries
 import java.util.concurrent.CompletableFuture
+import net.minecraft.core.registries.Registries

 /**
 * An action effect keyframe that plays a positioned sound for all matching entities.
@@ -45,6 +45,6 @@ class EntitySoundActionEffectKeyframe : ConditionalActionEffectKeyframe(), Entit
            entity.playSound(soundEvent, 1f, 1f)
        }

-        return delayedFuture(seconds = delay.resolveFloat(context.runtime))
+        return delayedFuture(seconds = delay.resolveFloat(context.runtime), context.tracker)
    }
 }
@@ -8,8 +8,6 @@

 package com.cobblemon.mod.common.api.moves.animations.keyframes

-import com.bedrockk.molang.runtime.struct.QueryStruct
-import com.cobblemon.mod.common.Cobblemon
 import com.cobblemon.mod.common.api.molang.ExpressionLike
 import com.cobblemon.mod.common.api.moves.animations.ActionEffectContext
 import com.cobblemon.mod.common.api.scheduling.delayedFuture
@@ -27,6 +25,6 @@ class MoLangActionEffectKeyframe : ActionEffectKeyframe {
    val delay: ExpressionLike = "0".asExpressionLike()
    override fun play(context: ActionEffectContext): CompletableFuture<Unit> {
        expressions.resolve(context.runtime)
-        return delayedFuture(seconds = delay.resolveFloat(context.runtime))
+        return delayedFuture(seconds = delay.resolveFloat(context.runtime), context.tracker)
    }
 }
@@ -13,7 +13,6 @@ import com.cobblemon.mod.common.api.moves.animations.ActionEffectTimeline
 import com.cobblemon.mod.common.api.moves.animations.ActionEffects
 import com.cobblemon.mod.common.api.moves.animations.TargetsProvider
 import com.cobblemon.mod.common.api.moves.animations.UsersProvider
-import com.cobblemon.mod.common.api.scheduling.afterOnServer
 import com.cobblemon.mod.common.entity.ai.OmniPathNavigation.NavigationContext
 import com.cobblemon.mod.common.entity.pokemon.PokemonEntity
 import com.cobblemon.mod.common.util.asExpressionLike
@@ -61,7 +60,7 @@ class MoveToTargetActionEffectKeyframe : ActionEffectKeyframe {
            }
        )

-        afterOnServer(seconds = timeout.resolveFloat(context.runtime)) {
+        context.tracker.after(seconds = timeout.resolveFloat(context.runtime)) {
            if (!future.isDone && !timedOut) {
                timedOut = true
                timeoutEffect.run(context).thenApply { future.complete(Unit) }
@@ -14,5 +14,5 @@ import com.cobblemon.mod.common.util.asExpressionLike

 class PauseActionEffectKeyframe : ConditionalActionEffectKeyframe() {
    val pause = "1".asExpressionLike()
-    override fun playWhenTrue(context: ActionEffectContext) = delayedFuture(seconds = pause.resolveFloat(context.runtime))
+    override fun playWhenTrue(context: ActionEffectContext) = delayedFuture(seconds = pause.resolveFloat(context.runtime), context.tracker)
 }
@@ -25,11 +25,8 @@ class RemoveHoldsActionEffectKeyframe : ActionEffectKeyframe {
    val holds = mutableSetOf<String>()
    override fun play(context: ActionEffectContext): CompletableFuture<Unit> {
        return delayedFuture(seconds = delay).thenApply {
-            if (holds.isEmpty()) {
-                context.holds.clear()
-            } else {
-                context.holds.removeAll(holds)
-            }
+            val holdsToRemove = if (holds.isEmpty()) context.getHolds() else holds
+            holdsToRemove.forEach(context::removeHold)
        }
    }
 }
@@ -13,13 +13,12 @@ import com.cobblemon.mod.common.api.moves.animations.ActionEffectContext
 import com.cobblemon.mod.common.api.moves.animations.ActionEffectTimeline
 import com.cobblemon.mod.common.api.moves.animations.ActionEffects
 import com.cobblemon.mod.common.api.moves.animations.UsersProvider
-import com.cobblemon.mod.common.api.scheduling.after
 import com.cobblemon.mod.common.entity.ai.OmniPathNavigation.NavigationContext
 import com.cobblemon.mod.common.entity.pokemon.PokemonEntity
 import com.cobblemon.mod.common.util.asExpressionLike
+import java.util.concurrent.CompletableFuture
 import net.minecraft.resources.ResourceLocation
 import net.minecraft.world.phys.Vec3
-import java.util.concurrent.CompletableFuture

 class ReturnToPositionActionEffectKeyframe : ActionEffectKeyframe {
    val speed = 1F
@@ -56,7 +55,7 @@ class ReturnToPositionActionEffectKeyframe : ActionEffectKeyframe {
            }
        )

-        after(seconds = timeout.resolveFloat(context.runtime)) {
+        context.tracker.after(seconds = timeout.resolveFloat(context.runtime)) {
            if (!future.isDone && !timedOut) {
                timedOut = true
                timeoutEffect.run(context).thenApply { future.complete(Unit) }
@@ -29,7 +29,6 @@ import com.cobblemon.mod.common.util.withQueryValue
 import com.google.gson.JsonElement
 import com.google.gson.JsonObject
 import kotlin.random.Random
-import kotlin.ranges.random
 import net.minecraft.server.level.ServerPlayer

 /**
@@ -17,21 +17,18 @@ import com.cobblemon.mod.common.api.npc.NPCPartyProvider
 import com.cobblemon.mod.common.api.pokemon.PokemonProperties
 import com.cobblemon.mod.common.api.storage.party.NPCPartyStore
 import com.cobblemon.mod.common.entity.npc.NPCEntity
-import com.cobblemon.mod.common.util.*
+import com.cobblemon.mod.common.util.asArrayValue
+import com.cobblemon.mod.common.util.asExpression
+import com.cobblemon.mod.common.util.cobblemonResource
+import com.cobblemon.mod.common.util.resolveFloat
+import com.cobblemon.mod.common.util.resolveInt
+import com.cobblemon.mod.common.util.weightedSelection
+import com.cobblemon.mod.common.util.withQueryValue
 import com.google.gson.JsonElement
 import com.google.gson.JsonObject
 import com.google.gson.JsonPrimitive
-import net.minecraft.server.level.ServerPlayer
-import kotlin.collections.List
-import kotlin.collections.any
-import kotlin.collections.filter
-import kotlin.collections.first
-import kotlin.collections.mutableListOf
-import kotlin.collections.mutableMapOf
-import kotlin.collections.randomOrNull
-import kotlin.collections.set
-import kotlin.collections.toMutableList
 import kotlin.random.Random
+import net.minecraft.server.level.ServerPlayer

 /**
 * A provider of a party for battling the NPC. It generates a party using a more complex process
@@ -12,10 +12,10 @@ import com.cobblemon.mod.common.api.pokedex.AbstractPokedexManager
 import com.cobblemon.mod.common.api.pokedex.PokedexEntryProgress
 import com.cobblemon.mod.common.api.pokedex.entry.PokedexEntry
 import com.cobblemon.mod.common.api.pokemon.PokemonSpecies
-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
 import com.cobblemon.mod.common.api.tms.TechnicalMachines
 import com.cobblemon.mod.common.client.CobblemonClient
 import com.cobblemon.mod.common.pokemon.FormData
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution
 import com.cobblemon.mod.common.util.asIdentifierDefaultingNamespace

 enum class PokedexCategoryFilterType {
@@ -14,11 +14,11 @@ import com.cobblemon.mod.common.api.pokedex.AbstractPokedexManager
 import com.cobblemon.mod.common.api.pokedex.PokedexEntryProgress
 import com.cobblemon.mod.common.api.pokedex.entry.PokedexEntry
 import com.cobblemon.mod.common.api.pokemon.PokemonSpecies
-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
 import com.cobblemon.mod.common.api.tms.TechnicalMachines
 import com.cobblemon.mod.common.client.CobblemonClient
-import com.cobblemon.mod.common.pokemon.abilities.HiddenAbility
 import com.cobblemon.mod.common.pokemon.FormData
+import com.cobblemon.mod.common.pokemon.abilities.HiddenAbility
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution
 import com.cobblemon.mod.common.util.asIdentifierDefaultingNamespace
 import com.cobblemon.mod.common.util.asTranslated
 import com.cobblemon.mod.common.util.itemRegistry
@@ -49,6 +49,7 @@ import com.mojang.brigadier.StringReader
 import com.mojang.serialization.Codec
 import com.mojang.serialization.JsonOps
 import java.util.UUID
+import kotlin.jvm.optionals.getOrNull
 import kotlin.math.min
 import kotlin.random.Random
 import net.minecraft.ResourceLocationException
@@ -65,7 +66,6 @@ import net.minecraft.resources.ResourceLocation
 import net.minecraft.server.level.ServerPlayer
 import net.minecraft.world.item.ItemStack
 import net.minecraft.world.level.Level
-import kotlin.jvm.optionals.getOrNull

 /**
 * A grouping of typical, selectable properties for a Pokémon. This is serializable
@@ -168,8 +168,8 @@ open class PokemonProperties {
                parseIntProperty(keyPairs, listOf("${statName}_iv"))?.coerceIn(0, IVs.MAX_VALUE)?.let { maybeIVs[stat] = it }
                parseIntProperty(keyPairs, listOf("${statName}_ev"))?.coerceIn(0, EVs.MAX_STAT_VALUE)?.let { maybeEVs[stat] = it }
            }
-            props.ivs = maybeIVs
-            props.evs = maybeEVs
+            props.evs = maybeEVs.takeIf { it.total() > 0 }
+            props.ivs = maybeIVs.takeIf { it.total() > 0 }

            props.updateAspects()
            return props
@@ -519,29 +519,18 @@ open class PokemonProperties {
    }

    fun matches(properties: PokemonProperties): Boolean {
-        return properties.asString() == this.asString()
+        // Custom properties check could be duplicated but can't assume 3rd party hasn't done anything type specific
+        return this.commonMatches(properties) && this.customProperties.containsAll(properties.customProperties)
    }

+    // Undefined properties will match whatever they're compared with
    private fun commonMatches(pokemon: Pokemon): Boolean {
        level?.takeIf { it != pokemon.level }?.let { return false }
        shiny?.takeIf { it != pokemon.shiny }?.let { return false }
        gender?.takeIf { it != pokemon.gender }?.let { return false }
-        species?.run {
-            try {
-                val species = if (this == "random") {
-                    PokemonSpecies.species.random()
-                } else {
-                    PokemonSpecies.getByIdentifier(this.asIdentifierDefaultingNamespace()) ?: return@run
-                }
-                if (pokemon.species != species) {
-                    return false
-                }
-            } catch (e: ResourceLocationException) {
-                return false
-            }
-        }
+        species?.takeIf { it.asSpecies() != pokemon.species }?.let { return false }
        nickname?.takeIf { it.string != pokemon.nickname?.string }?.let { return false }
-        form?.takeIf { !it.equals(pokemon.form.name, true) }?.let { return false }
+        form?.takeIf { !it.equals(pokemon.form.formOnlyShowdownId(), true) }?.let { return false }
        friendship?.takeIf { it != pokemon.friendship }?.let { return false }
        fullness?.takeIf { it != pokemon.currentFullness }?.let { return false }
        pokeball?.takeIf { it != pokemon.caughtBall.name.toString() }?.let { return false }
@@ -584,6 +573,36 @@ open class PokemonProperties {
        return true
    }

+    // Undefined properties will match whatever they're compared with
+    private fun commonMatches(properties: PokemonProperties): Boolean {
+        level?.takeIf { it != properties.level }?.let { return false }
+        shiny?.takeIf { it != properties.shiny }?.let { return false }
+        gender?.takeIf { it != properties.gender }?.let { return false }
+        species?.takeIf { it.asSpecies() != properties.species?.asSpecies() }?.let { return false }
+        nickname?.takeIf { it.string != properties.nickname?.string }?.let { return false }
+        form?.takeIf { it != properties.form }?.let { return false }
+        friendship?.takeIf { it != properties.friendship }?.let { return false }
+        pokeball?.takeIf { it != properties.pokeball }?.let { return false }
+        nature?.takeIf { it != properties.nature }?.let { return false }
+        ability?.takeIf { it != properties.ability }?.let { return false }
+        status?.takeIf { it != properties.status }?.let { return false }
+        ivs?.forEach{ stat ->
+            if (stat.value != properties.ivs?.get(stat.key)) { return false }
+        }
+        evs?.forEach{ stat ->
+            if (stat.value != properties.evs?.get(stat.key)) { return false }
+        }
+        type?.takeIf { it != properties.type }?.let { return false }
+        teraType?.takeIf { it != properties.teraType }?.let { return false }
+        dmaxLevel?.takeIf { it != properties.dmaxLevel }?.let { return false }
+        gmaxFactor?.takeIf { it != properties.gmaxFactor }?.let { return false }
+        tradeable?.takeIf { it != properties.tradeable }?.let { return false }
+        originalTrainer?.takeIf { it != properties.originalTrainer }?.let{ return false }
+        originalTrainerType?.takeIf { it != properties.originalTrainerType }?.let{ return false }
+        moves?.takeIf { it.any { move -> properties.moves?.none { it == move } == true } }?.let { return false }
+        return true
+    }
+
    // TODO Review the need for this, usage for us is in commands that deviate from the behavior established by multiple Pokémon query equivalent
    fun isSubSetOf(properties: PokemonProperties): Boolean {
        level?.takeIf { it != properties.level }?.let { return false }
@@ -902,4 +921,15 @@ open class PokemonProperties {
    }

    fun hasSpecies() = species?.let { PokemonSpecies.getByIdentifier(it.asIdentifierDefaultingNamespace()) } != null
+    private fun String.asSpecies() =
+        try {
+            if (this == "random") {
+                PokemonSpecies.species.random()
+            } else {
+                PokemonSpecies.getByIdentifier(this.asIdentifierDefaultingNamespace())
+            }
+         }
+        catch (e: ResourceLocationException) {
+            null
+        }
 }
@@ -12,6 +12,8 @@ import com.bedrockk.molang.Expression
 import com.cobblemon.mod.common.Cobblemon
 import com.cobblemon.mod.common.api.abilities.AbilityPool
 import com.cobblemon.mod.common.api.abilities.AbilityTemplate
+import com.cobblemon.mod.common.api.abilities.CommonAbility
+import com.cobblemon.mod.common.api.abilities.PotentialAbility
 import com.cobblemon.mod.common.api.ai.SleepDepth
 import com.cobblemon.mod.common.api.ai.config.BehaviourConfig
 import com.cobblemon.mod.common.api.ai.config.task.TaskConfig
@@ -30,14 +32,14 @@ import com.cobblemon.mod.common.api.pokemon.PokemonSpecies.getByIdentifier
 import com.cobblemon.mod.common.api.pokemon.effect.ShoulderEffect
 import com.cobblemon.mod.common.api.pokemon.effect.adapter.ShoulderEffectAdapter
 import com.cobblemon.mod.common.api.pokemon.egg.EggGroup
-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
-import com.cobblemon.mod.common.api.pokemon.evolution.PreEvolution
 import com.cobblemon.mod.common.api.pokemon.experience.ExperienceGroup
 import com.cobblemon.mod.common.api.pokemon.experience.ExperienceGroupAdapter
 import com.cobblemon.mod.common.api.pokemon.moves.Learnset
-import com.cobblemon.mod.common.api.pokemon.requirement.Requirement
 import com.cobblemon.mod.common.api.pokemon.stats.Stat
 import com.cobblemon.mod.common.api.pokemon.stats.Stats
+import com.cobblemon.mod.common.api.pokemon.transformation.evolution.PreEvolution
+import com.cobblemon.mod.common.api.pokemon.transformation.requirement.TransformationRequirement
+import com.cobblemon.mod.common.api.pokemon.transformation.trigger.TransformationTrigger
 import com.cobblemon.mod.common.api.reactive.SimpleObservable
 import com.cobblemon.mod.common.api.riding.behaviour.RidingBehaviourSettings
 import com.cobblemon.mod.common.api.riding.sound.RideSoundSettingsList
@@ -48,12 +50,21 @@ import com.cobblemon.mod.common.net.messages.client.data.SpeciesRegistrySyncPack
 import com.cobblemon.mod.common.pokemon.FormData
 import com.cobblemon.mod.common.pokemon.Species
 import com.cobblemon.mod.common.pokemon.SpeciesAdditions
-import com.cobblemon.mod.common.pokemon.adapters.CobblemonRequirementAdapter
+import com.cobblemon.mod.common.pokemon.abilities.HiddenAbility
+import com.cobblemon.mod.common.pokemon.abilities.SpecialAbility
 import com.cobblemon.mod.common.pokemon.ai.ObtainableItemCondition
 import com.cobblemon.mod.common.pokemon.ai.ObtainableItemConditionAdapter
-import com.cobblemon.mod.common.pokemon.evolution.adapters.CobblemonEvolutionAdapter
-import com.cobblemon.mod.common.pokemon.evolution.adapters.CobblemonPreEvolutionAdapter
-import com.cobblemon.mod.common.pokemon.evolution.adapters.LegacyItemConditionWrapperAdapter
+import com.cobblemon.mod.common.pokemon.transformation.adapters.CobblemonPreEvolutionAdapter
+import com.cobblemon.mod.common.pokemon.transformation.adapters.CobblemonRequirementAdapter
+import com.cobblemon.mod.common.pokemon.transformation.adapters.CobblemonTriggerAdapter
+import com.cobblemon.mod.common.pokemon.transformation.adapters.LegacyItemConditionWrapperAdapter
+import com.cobblemon.mod.common.pokemon.transformation.evolution.Evolution
+import com.cobblemon.mod.common.pokemon.transformation.form.GigantamaxForm
+import com.cobblemon.mod.common.pokemon.transformation.form.PermanentForm
+import com.cobblemon.mod.common.pokemon.transformation.form.StandardForm
+import com.cobblemon.mod.common.pokemon.transformation.form.TemporaryForm
+import com.cobblemon.mod.common.pokemon.transformation.requirements.HeldItemRequirement
+import com.cobblemon.mod.common.pokemon.transformation.requirements.MoveSetRequirement
 import com.cobblemon.mod.common.util.adapters.*
 import com.cobblemon.mod.common.util.cobblemonResource
 import com.google.common.collect.HashBasedTable
@@ -104,10 +115,8 @@ object PokemonSpecies : JsonDataRegistry<Species> {
        .registerTypeAdapter(ExperienceGroup::class.java, ExperienceGroupAdapter)
        .registerTypeAdapter(EntityDimensions::class.java, EntityDimensionsAdapter)
        .registerTypeAdapter(Learnset::class.java, LearnsetAdapter)
-        .registerTypeAdapter(Evolution::class.java, CobblemonEvolutionAdapter)
        .registerTypeAdapter(AABB::class.java, BoxAdapter)
        .registerTypeAdapter(AbilityPool::class.java, AbilityPoolAdapter)
-        .registerTypeAdapter(Requirement::class.java, CobblemonRequirementAdapter)
        .registerTypeAdapter(PreEvolution::class.java, CobblemonPreEvolutionAdapter)
        .registerTypeAdapter(TypeToken.getParameterized(Set::class.java, Evolution::class.java).type, LazySetAdapter(Evolution::class))
        .registerTypeAdapter(IntRange::class.java, IntRangeAdapter)
@@ -128,7 +137,10 @@ object PokemonSpecies : JsonDataRegistry<Species> {
        .registerTypeAdapter(TypeToken.getParameterized(RegistryLikeCondition::class.java, Fluid::class.java).type, FluidLikeConditionAdapter)
        .registerTypeAdapter(EggGroup::class.java, EggGroupAdapter)
        .registerTypeAdapter(MobEffect::class.java, RegistryElementAdapter<MobEffect>(BuiltInRegistries::MOB_EFFECT))
+        .registerTypeAdapter(TransformationTrigger::class.java, CobblemonTriggerAdapter)
+        .registerTypeAdapter(TransformationRequirement::class.java, CobblemonRequirementAdapter)
        .registerTypeAdapter(ItemPredicate::class.java, LegacyItemConditionWrapperAdapter)
+        .registerTypeAdapter(FormData::class.java, FormAdapter)
        .registerTypeAdapter(RidingBehaviourSettings::class.java, RidingBehaviourSettingsAdapter)
        .registerTypeAdapter(RideSoundSettingsList::class.java, RideSoundSettingsListAdapter)
        .registerTypeAdapter(ObtainableItemCondition::class.java, ObtainableItemConditionAdapter)
@@ -152,6 +164,9 @@ object PokemonSpecies : JsonDataRegistry<Species> {
    val implemented: List<Species>
        get() = this.species.filter { it.implemented }

+    val forms: Collection<FormData>
+        get() = this.species.flatMap { it.allForms }
+
    init {
        SpeciesAdditions.observable.subscribe {
            this.species.forEach(Species::initialize)
@@ -246,34 +261,18 @@ object PokemonSpecies : JsonDataRegistry<Species> {
    }

    /**
-     * The representation of a [Species] and/or [FormData] in the context of showdown.
+     * The representation of [FormData] in the context of Showdown.
     * This is intended as a sort of DTO that can be easily converted between JSON and Java/JS objects.
     *
-     * @param species The [Species] being converted or the base species if the form is not null.
-     * @param form The [FormData] being converted int o species (Showdown considers them species) will be null when dealing with the base form.
+     * @param form The [FormData] being converted into a species (Showdown considers them species).
     */
    @Suppress("unused")
-    internal class ShowdownSpecies(species: Species, form: FormData?) {
-        val num = species.nationalPokedexNumber
-        val name = if (form != null) "${createShowdownName(species)}-${form.name}" else createShowdownName(species)
-        val baseSpecies = if (form != null) createShowdownName(species) else this.name
-        val forme = form?.name
-        // ToDo baseForme
-        val otherFormes = if (form == null && species.forms.isNotEmpty()) species.forms.map { "${this.name}-${it.name}" } else emptyList()
-        val formeOrder = if (form == null && this.otherFormes.isNotEmpty()) arrayListOf(this.name, *this.otherFormes.toTypedArray()) else emptyList()
-        val abilities: Map<String, String> = mapOf(
-            "0" to "No Ability",
-            "1" to "No Ability",
-            "H" to "No Ability",
-            "S" to "No Ability"
-        )
-        val types = (form?.types ?: species.types).map { it.name }
-        val preevo: String? = (form?.preEvolution ?: species.preEvolution)?.let { if (it.form == it.species.standardForm) createShowdownName(it.species) else "${createShowdownName(it.species)}-${it.form.name}" }
-        // For the context of battles the content here doesn't matter whatsoever and due to how PokemonProperties work we can't guarantee an actual specific species is defined.
-        val evos = if ((form?.evolutions ?: species.evolutions).isEmpty()) emptyList() else arrayListOf("")
-        val nfe = this.evos.isNotEmpty()
-        val eggGroups = (form?.eggGroups ?: species.eggGroups).map { it.showdownID }
-        val gender: String? = when (form?.maleRatio ?: species.maleRatio) {
+    internal open class ShowdownSpecies(form: FormData) {
+        val num = form.species.nationalPokedexNumber
+        val name = form.showdownName()
+        val types = form.types.map { it.name }
+        val eggGroups = form.eggGroups.map { it.showdownID }
+        val gender: String? = when (form.maleRatio) {
            0F -> "F"
            1F -> "M"
            -1F, 1.125F -> "N"
@@ -281,47 +280,145 @@ object PokemonSpecies : JsonDataRegistry<Species> {
        }
        val genderRatio = if (this.gender == null)
            mapOf(
-                "maleRatio" to (form?.maleRatio ?: species.maleRatio),
-                "femaleRation" to (1F - (form?.maleRatio ?: species.maleRatio))
+                "M" to (form.maleRatio),
+                "F" to (1F - (form.maleRatio))
            ) else null
-        val baseStats = mapOf(
-            "hp" to (form?.baseStats?.get(Stats.HP) ?: species.baseStats[Stats.HP] ?: 1),
-            "atk" to (form?.baseStats?.get(Stats.ATTACK) ?: species.baseStats[Stats.ATTACK] ?: 1),
-            "def" to (form?.baseStats?.get(Stats.DEFENCE) ?: species.baseStats[Stats.DEFENCE] ?: 1),
-            "spa" to (form?.baseStats?.get(Stats.SPECIAL_ATTACK) ?: species.baseStats[Stats.SPECIAL_ATTACK] ?: 1),
-            "spd" to (form?.baseStats?.get(Stats.SPECIAL_DEFENCE) ?: species.baseStats[Stats.SPECIAL_DEFENCE] ?: 1),
-            "spe" to (form?.baseStats?.get(Stats.SPEED) ?: species.baseStats[Stats.SPEED] ?: 1)
-        )
-        val heightm = (form?.height ?: species.height) / 10
-        val weightkg = (form?.weight ?: species.weight) / 10
+        val baseStats = Stats.PERMANENT.associateBy({ it.showdownId }, { form.baseStats[it] ?: 1 })
+        val heightm = form.height / 10
+        val weightkg = form.weight / 10
        // This is ugly, but we already have it hardcoded in the mod anyway
-        val maxHP = if (species.showdownId() == "shedinja") 1 else null
-        val canGigantamax: String? = if (form?.gigantamaxMove != null) form.gigantamaxMove.name else null
-        val cannotDynamax = form?.dynamaxBlocked ?: species.dynamaxBlocked
-        // ToDo battleOnly
-        // ToDo changesFrom
-        val requiredMove = form?.requiredMove
-        val requiredItem = form?.requiredItem
-        val requiredItems = form?.requiredItems
+        val maxHP = if (this.num == 292) 1 else null
+        val cannotDynamax = form.dynamaxBlocked
+        val abilities = form.showdownAbilityMapping()
+        // Common fields exempt from standard forms
+        val baseSpecies = if (form !is StandardForm) form.species.standardForm.showdownName() else null
+        val forme = if (form !is StandardForm) form.name else null
+
+        /**
+         * The following fields are optional and currently omitted
+         *
+         * cosmeticFormes   (not needed, we have species features)
+         * addedType        (tertiary type [by name or showdownid] added by moves or abilities)
+         * tier             (smogon tryhard bs)
+         * doublesTier      (smogon tryhard bs)
+         * natDexTier       (smogon tryhard bs)
+         * evoType          (the evolution method used to evolve from 'prevo'; trade', 'useItem', 'levelMove', 'levelExtra', 'levelFriendship', 'levelHold', 'other')
+         * evoMove          (the move [by name or showdownid] used to evolve from 'prevo')
+         * evoLevel         (the minimum level required to evolve from 'prevo')
+         * canHatch         (flag for baby pokemon)
+         * color            (color, value is arbitrary)
+         * tags             (flags for filtering pokemon; 'Mega', 'Mythical', 'Sub-Legendary', 'Restricted Legendary', 'Paradox')
+         * unreleasedHidden (whether this pokemon has an unreleased hidden ability)
+         * maleOnlyHidden   (whether it is only possible to get the hidden ability on a male pokemon)
+         * gmaxUnreleased   (whether this pokemon has an unreleased gmax form)
+         * pokemonGoData    (no one cares)
+         */
    }

-    private fun createShowdownName(species: Species): String {
-        if (species.resourceIdentifier.namespace == Cobblemon.MODID) {
-            return species.name
+    /**
+     * The representation of a [PermanentForm] in the context of Showdown.
+     *
+     * @param form The [PermanentForm] being converted into a species.
+     */
+    internal open class ShowdownPermanentForm(form: PermanentForm) : ShowdownSpecies(form) {
+        // species this form evolves from
+        val prevo = form.preEvolution?.form?.showdownName()
+        // For the context of battles the content here doesn't matter whatsoever and due to how PokemonProperties work we can't guarantee an actual specific species is defined.
+        val evos = form.evolutions.map { "" }
+        // not fully evolved
+        val nfe = this.evos.isNotEmpty()
+        // whether there is a gmax form to change to
+        val canGigantamax: String? = form.changeableForms.filterIsInstance<GigantamaxForm>().firstOrNull()?.name  // TODO id better
+    }
+
+    /**
+     * The representation of a [StandardForm] in the context of Showdown.
+     *
+     * @param form The [StandardForm] being converted into a species.
+     */
+    internal class ShowdownStandardForm(form: StandardForm) : ShowdownPermanentForm(form) {
+        // list of all forms descending from this base species
+        val otherFormes = form.flattenForms().map { it.showdownName() }
+        // list of forms [by name or showdownid] in the order they appear in game [union of baseSpecies, otherFormes, and cosmeticFormes] with the exception of ending with 'Gmax' forms
+        val formeOrder = if (this.otherFormes.isNotEmpty()) arrayListOf(this.name, *this.otherFormes.toTypedArray()) else null
+
+        // TODO we don't enforce any form order with our Species registration - right now this looks like only a problem with Mega Rayquaza, but investigate changes needed on Showdown's end to enable these lists to be more dynamic
+    }
+
+    /**
+     * The representation of a [TemporaryForm] in the context of Showdown.
+     *
+     * @param form The [TemporaryForm] being converted into a species.
+     */
+    internal class ShowdownTemporaryForm(form: TemporaryForm) : ShowdownSpecies(form) {
+        // form change can occur during a battle
+        val battleOnly = if (form.battleOnly) form.parentForm.showdownName() else null
+        // form change can occur outside of battle (mutually exclusive with battleOnly)
+        val changesFrom = if (!form.battleOnly) form.parentForm.showdownName() else null
+        // pokemon must know this move to be in this form
+        val requiredMove = form.requirements.filterIsInstance<MoveSetRequirement>().firstOrNull()?.move?.showdownId() // TODO update showdown to support 'requiredMoves'
+        // pokemon must hold one of these item(s) to be in this form
+        val requiredItems = form.requirements.filterIsInstance<HeldItemRequirement>().firstOrNull()?.let { requirement ->
+            try {
+                requirement.itemCondition.items.get().map { BuiltInRegistries.ITEM.getKey(it.value()).path }  // TODO held items on showdown are ignorant of namespace
+            }
+            catch (e: NoSuchElementException)
+            {
+                Cobblemon.LOGGER.error("Failed to resolve required held item for ${form.showdownId()}}")  // TODO this needs to be done after tags are loaded...
+                null
+            }
        }
-        return "${species.resourceIdentifier.namespace}:${species.name}"
+    }
+
+    /** Accommodate for Showdown bullshit. */
+    /*
+    private fun TemporaryForm.showdownParentForm(): Any {
+        if (this.parentOverrides.isNotEmpty())
+            return this.species.standardForm.flattenForms().filter {
+                parentOverrides.contains(it.showdownId())
+            }.map {
+                it.showdownName()
+            }
+        else
+            return parentForm.showdownName()
+    }
+
+     */
+
+    /**
+     * Constructs a mapping of the [PotentialAbility]s belonging to a [FormData] in Showdown identifiable format.
+     *
+     * @return A map of type (numeric for [CommonAbility]s, H for [HiddenAbility], S for [SpecialAbility]) to showdownid.
+     */
+    private fun FormData.showdownAbilityMapping(): Map<String, String>? {
+        // potential abilities
+        val commonAbilities = this.abilities.filterIsInstance<CommonAbility>()
+        val hiddenAbility = this.abilities.find { it is HiddenAbility }
+        val specialAbility = this.abilities.find { it is SpecialAbility }
+
+        // can have multiple common abilities
+        val abilities = mutableMapOf<String, String>()
+        val mapping: (String, PotentialAbility) -> Unit =  { key, ability ->
+            abilities.put(key, ability.template.showdownId())
+        }
+
+        // can only have one hidden and one special ability
+        commonAbilities.forEachIndexed { index, ability -> mapping(index.toString(), ability) }
+        hiddenAbility?.let { ability -> mapping("H", ability) }
+        specialAbility?.let { ability -> mapping("S", ability) }
+        return if (abilities.isEmpty()) null else abilities
    }

    internal fun allShowdownSpecies(): Map<String, String> {
        val result = mutableMapOf<String, String>()
-        this.species.forEach {species ->
-            val baseSpecies = ShowdownSpecies(species, null)
-            result[ShowdownIdentifiable.REGEX.replace(baseSpecies.name.lowercase(), "")] = this.gson.toJson(baseSpecies)
-            species.forms.forEach { form ->
-                if (form != species.standardForm) {
-                    val formSpecies = ShowdownSpecies(species, form)
-                    result[ShowdownIdentifiable.REGEX.replace(formSpecies.name.lowercase(), "")] = this.gson.toJson(formSpecies)
-                }
+        this.species.forEach { species ->
+            species.permanentForms.forEach { form ->
+                val formSpecies = ShowdownSpecies(form)
+                result[ShowdownIdentifiable.REGEX.replace(formSpecies.name.lowercase(), "")] = this.gson.toJson(formSpecies)
+            }
+            species.temporaryForms.forEach { form ->
+                val formSpecies = ShowdownSpecies(form)
+                result[ShowdownIdentifiable.REGEX.replace(formSpecies.name.lowercase(), "")] = this.gson.toJson(formSpecies)
            }
        }
        return result
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2023 Cobblemon Contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-package com.cobblemon.mod.common.api.pokemon.adapters
-
-import com.cobblemon.mod.common.api.pokemon.requirement.Requirement
-import com.google.gson.JsonDeserializer
-import com.google.gson.JsonSerializer
-import kotlin.reflect.KClass
-
-/**
- * Saves and loads [Requirement]s with JSON.
- * For the default implementation see [com.cobblemon.mod.common.pokemon.adapters.CobblemonRequirementAdapter].
- *
- * @author Licious
- * @since March 21st, 2022
- */
-interface RequirementAdapter : JsonDeserializer<Requirement>, JsonSerializer<Requirement> {
-
-    /**
-     * Registers the given type of [Requirement] to it's associated ID for deserialization.
-     *
-     * @param T The type of [Requirement].
-     * @param id The id of the evolution event.
-     * @param type The [KClass] of the type.
-     */
-    fun <T : Requirement> registerType(id: String, type: KClass<T>)
-
-}
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2023 Cobblemon Contributors
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+package com.cobblemon.mod.common.api.pokemon.aspect
+
+import com.cobblemon.mod.common.api.pokemon.feature.SpeciesFeature
+import com.cobblemon.mod.common.pokemon.Pokemon
+
+/**
+ * A provider of aspects for a [SpeciesFeature].
+ *
+ * @author Segfault Guy
+ * @since Feb 12th, 2024
+ */
+interface FeatureAspectProvider: AspectProvider {
+    var default: String?
+    var isAspect: Boolean
+
+    /** Returns true if this [aspect] is provided by this provider. */
+    fun matches(aspect: String): Boolean
+
+    /** Creates a [SpeciesFeature] that provides the respective [aspect]. */
+    fun from(aspect: String): SpeciesFeature<*>?
+
+    /** Sets the [aspect] that's provided. */
+    fun set(pokemon: Pokemon, aspect: String)
+}
@@ -24,11 +24,11 @@ interface SingleConditionalAspectProvider : AspectProvider {
        fun getForFeature(name: String): SingleConditionalAspectProvider {
            return object : SingleConditionalAspectProvider {
                override val aspect: String = name
-                override fun meetsCondition(pokemon: Pokemon) = pokemon.getFeature<FlagSpeciesFeature>(name)?.enabled == true
+                override fun meetsCondition(pokemon: Pokemon) = pokemon.getFeature<FlagSpeciesFeature>(name)?.value == true
                override fun meetsCondition(pokemonProperties: PokemonProperties) = pokemonProperties
                    .customProperties
                    .filterIsInstance<FlagSpeciesFeature>()
-                    .any { it.name == name && it.enabled }
+                    .any { it.name == name && it.value }

            }
        }
@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2023 Cobblemon Contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-package com.cobblemon.mod.common.api.pokemon.evolution
-
-import com.cobblemon.mod.common.pokemon.Pokemon
-import com.cobblemon.mod.common.pokemon.evolution.variants.ItemInteractionEvolution
-import com.cobblemon.mod.common.pokemon.evolution.variants.TradeEvolution
-
-/**
- * Represents an evolution of a [Pokemon] that can only occur during specific actions and with added context.
- * For the default implementations see [ItemInteractionEvolution] & [TradeEvolution].
- *
- * @param RC The context given at runtime when querying the [Evolution].
- * @param TC The context that is serialized from JSON during species loading, this is what the [RC] is expected to match against.
- * @author Licious
- * @since March 19th, 2022
- */
-interface ContextEvolution<RC, TC> : Evolution {
-
-    /**
-     * The target context for this [Evolution] to even be tested.
-     */
-    val requiredContext: TC
-
-    /**
-     * Attempts to evolve the given [Pokemon] under the given context of type [RC].
-     *
-     * @param pokemon The [Pokemon] attempting to evolve.
-     * @param context The context of this query.
-     * @return If the evolution was successful.
-     */
-    fun attemptEvolution(pokemon: Pokemon, context: RC): Boolean {
-        if (this.testContext(pokemon, context) && super.test(pokemon)) {
-            return super.evolve(pokemon)
-        }
-        return false
-    }
-
-    /**
-     * Checks if the given context is valid for the [requiredContext].
-     *
-     * @param pokemon The [Pokemon] attempting to evolve.
-     * @param context The context of this query.
-     * @return If the context matched the [requiredContext].
-     */
-    fun testContext(pokemon: Pokemon, context: RC): Boolean
-
-}
@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2023 Cobblemon Contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-package com.cobblemon.mod.common.api.pokemon.evolution
-
-import com.cobblemon.mod.common.api.pokemon.evolution.progress.EvolutionProgress
-import com.cobblemon.mod.common.pokemon.Pokemon
-import com.cobblemon.mod.common.pokemon.evolution.controller.ClientEvolutionController
-import com.cobblemon.mod.common.pokemon.evolution.controller.ServerEvolutionController
-
-/**
- * Responsible for holding all available [EvolutionLike]s in the [Pokemon].
- * Also handles all the networking behind them.
- * For the Cobblemon default implementations see [ClientEvolutionController] & [ServerEvolutionController].
- *
- * @author Licious
- * @since April 28th, 2022
- */
-interface EvolutionController<T : EvolutionLike, out I : PreProcessor> : MutableSet<T> {
-
-    /**
-     * Resolves the [Pokemon] attached to this controller.
-     *
-     * @return The [Pokemon] this controller is attached to.
-     */
-    fun pokemon(): Pokemon
-
-    /**
-     * Starts the given evolution on this controller.
-     * All the necessary networking will be handled.
-     *
-     * @param evolution The [EvolutionLike] starting.
-     */
-    fun start(evolution: T)
-
-    /**
-     * Returns an immutable collection of [EvolutionProgress]es attached to this controller.
-     *
-     * @return The currently tracked [EvolutionProgress]es.
-     */
-    fun progress(): Collection<EvolutionProgress<*>>
-
-    /**
-     * Attaches a [EvolutionProgress] to this controller.
-     *
-     * @param P The type of [EvolutionProgress].
-     * @param progress The [EvolutionProgress] being attached for tracking.
-     * @return The instance being tracked.
-     */
-    fun <P : EvolutionProgress<*>> trackProgress(progress: P): P
-
-    /**
-     * Attempts to find an [EvolutionProgress] in [progress] or creates and tracks using [trackProgress].
-     *
-     * @param P The type of [EvolutionProgress].
-     * @param predicate The lambda attempting to find specific progress. This needs to ensure the [EvolutionProgress] is of type [P] or the cast will fail.
-     * @param progressFactory The lambda creating a new instance of type [P] if [predicate] can't find an element.
-     * @return The found match in [progress] or the created and now tracked with [trackProgress].
-     */
-    fun <P : EvolutionProgress<*>> progressFirstOrCreate(predicate: (progress: EvolutionProgress<*>) -> Boolean, progressFactory: () -> P): P
-
-    fun asIntermediate(): I
-
-}
@@ -1,48 +0,0 @@
-/*
- * Copyright (C) 2023 Cobblemon Contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-package com.cobblemon.mod.common.api.pokemon.evolution
-
-import com.cobblemon.mod.common.pokemon.Pokemon
-import com.cobblemon.mod.common.pokemon.Species
-import com.cobblemon.mod.common.pokemon.evolution.CobblemonEvolutionDisplay
-import com.mojang.serialization.Codec
-import com.mojang.serialization.codecs.RecordCodecBuilder
-
-/**
- * Represents an evolution of a [Pokemon], this is the client side counterpart of [Evolution].
- * This has no attachments to any data regarding the evolution itself and only serves for display purposes and basic communication.
- *
- * @author Licious
- * @since April 28th, 2022
- */
-interface EvolutionDisplay : EvolutionLike {
-
-    /**
-     * The [Species] of the evolution result.
-     */
-    val species: Species
-
-    /**
-     * The aspects of the evolution result.
-     * These are used by the client to resolve the entity it needs to display.
-     */
-    val aspects: Set<String>
-
-    companion object {
-        @JvmStatic
-        val CODEC: Codec<EvolutionDisplay> = RecordCodecBuilder.create { instance ->
-            instance.group(
-                Codec.STRING.fieldOf("id").forGetter(EvolutionDisplay::id),
-                Species.BY_IDENTIFIER_CODEC.fieldOf("species").forGetter(EvolutionDisplay::species),
-                Codec.list(Codec.STRING).fieldOf("aspects").forGetter { it.aspects.toList() }
-            ).apply(instance) { id, species, aspects -> CobblemonEvolutionDisplay(id, species, aspects.toSet()) }
-        }
-    }
-
-}
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2023 Cobblemon Contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-package com.cobblemon.mod.common.api.pokemon.evolution
-
-/**
- * Responsible for holding the different [EvolutionController] implementations based on the logical side.
- * If you haven't already checked your side previously you can use [isClient].
- *
- * @param C The type of [EvolutionLike] on the client side.
- * @param S The type of [EvolutionLike] on the server side.
- * @param CI The type of [PreProcessor] on the client side.
- * @param SI The type of [PreProcessor] on the server side.
- *
- * @author Licious
- * @since June 18th, 2022
- */
-interface EvolutionProxy<C : EvolutionLike, S : EvolutionLike, CI : PreProcessor, SI : PreProcessor> {
-
-    /**
-     * Checks if the current logical side is the client.
-     *
-     * @return True if the current logical side is the client.
-     */
-    fun isClient(): Boolean
-
-    /**
-     * Returns the current [EvolutionController].
-     * Keep in mind this will have type erasure and as such most operations will not be possible.
-     * It's recommended to work with [client] or [server] when possible.
-     *
-     * @return The current [EvolutionController].
-     */
-    fun current(): EvolutionController<out EvolutionLike, *>
-
-    /**
-     * The client side implementation of the [EvolutionController].
-     *
-     * @throws [ClassCastException] if called from the server side.
-     *
-     * @return The client side implementation of the [EvolutionController] if possible.
-     */
-    fun client(): EvolutionController<C, CI>
-
-    /**
-     * The server side implementation of the [EvolutionController].
-     *
-     * @throws [ClassCastException] if called from the client side.
-     *
-     * @return The server side implementation of the [EvolutionController] if possible.
-     */
-    fun server(): EvolutionController<S, SI>
-
-}
@@ -1,43 +0,0 @@
-/*
- * Copyright (C) 2023 Cobblemon Contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-package com.cobblemon.mod.common.api.pokemon.evolution
-
-import com.cobblemon.mod.common.pokemon.Pokemon
-import com.cobblemon.mod.common.pokemon.evolution.variants.LevelUpEvolution
-
-/**
- * Represents an evolution of a [Pokemon] that can occur without any additional context or actions.
- * For the default implementation see [LevelUpEvolution].
- *
- * @author Licious
- * @since March 19th, 2022
- */
-interface PassiveEvolution : Evolution {
-
-    /**
-     * Checks if the given [Pokemon] satisfies the requirements.
-     * If yes the evolution will attempt to start.
-     *
-     * @param pokemon The [Pokemon] being tested.
-     * @return If the [Pokemon] will evolve.
-     */
-    fun attemptEvolution(pokemon: Pokemon): Boolean {
-        if (super.test(pokemon)) {
-            return super.evolve(pokemon)
-        }
-        return false
-    }
-
-    /**
-     * If the evolution will disappear once the conditions are no longer met.
-     */
-    val permanent: Boolean
-
-
-}
@@ -1,18 +0,0 @@
-/*
- * Copyright (C) 2023 Cobblemon Contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-package com.cobblemon.mod.common.api.pokemon.evolution
-
-import com.cobblemon.mod.common.pokemon.Pokemon
-
-/**
- * TODO
- */
-fun interface PreProcessor {
-    fun create(pokemon: Pokemon): EvolutionController<*, *>
-}
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2023 Cobblemon Contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-package com.cobblemon.mod.common.api.pokemon.evolution.adapters
-
-import com.cobblemon.mod.common.api.pokemon.evolution.Evolution
-import com.cobblemon.mod.common.pokemon.evolution.adapters.CobblemonEvolutionAdapter
-import com.google.gson.JsonDeserializer
-import com.google.gson.JsonSerializer
-import kotlin.reflect.KClass
-
-/**
- * Saves and loads [Evolution]s with JSON.
- * For the default implementation see [CobblemonEvolutionAdapter].
- *
- * @author Licious
- * @since March 20th, 2022
- */
-interface EvolutionAdapter : JsonDeserializer<Evolution>, JsonSerializer<Evolution> {
-
-    /**
-     * Registers the given type of [Evolution] to it's associated ID for deserialization.
-     *
-     * @param T The type of [Evolution].
-     * @param id The id of the evolution event.
-     * @param type The [KClass] of the type.
-     */
-    fun <T : Evolution> registerType(id: String, type: KClass<T>)
-
-}
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2023 Cobblemon Contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-package com.cobblemon.mod.common.api.pokemon.evolution.progress
-
-import com.cobblemon.mod.common.pokemon.evolution.controller.ServerEvolutionController
-import com.cobblemon.mod.common.pokemon.evolution.progress.*
-import com.cobblemon.mod.common.util.cobblemonResource
-import com.mojang.serialization.Codec
-import com.mojang.serialization.Lifecycle
-import net.minecraft.core.MappedRegistry
-import net.minecraft.core.Registry
-import net.minecraft.resources.ResourceKey
-import net.minecraft.resources.ResourceLocation
-import kotlin.jvm.Throws
-
-object EvolutionProgressTypes {
-
-    private val REGISTRY: Registry<EvolutionProgressType<*>> = MappedRegistry(
-        ResourceKey.createRegistryKey(cobblemonResource("evolution_progress")), Lifecycle.stable()
-    )
-
-    @JvmStatic
-    val DAMAGE_TAKEN = this.registerType(DamageTakenEvolutionProgress.ID, EvolutionProgressType(DamageTakenEvolutionProgress.CODEC))
-    @JvmStatic
-    val DEFEAT = this.registerType(DefeatEvolutionProgress.ID, EvolutionProgressType(DefeatEvolutionProgress.CODEC))
-    @JvmStatic
-    val LAST_BATTLE_CRITICAL_HITS = this.registerType(LastBattleCriticalHitsEvolutionProgress.ID, EvolutionProgressType(LastBattleCriticalHitsEvolutionProgress.CODEC))
-    @JvmStatic
-    val RECOIL = this.registerType(RecoilEvolutionProgress.ID, EvolutionProgressType(RecoilEvolutionProgress.CODEC))
-    @JvmStatic
-    val USE_MOVE = this.registerType(UseMoveEvolutionProgress.ID, EvolutionProgressType(UseMoveEvolutionProgress.CODEC))
-
-    /**
-     * Registers an evolution progress.
-     *
-     * @param T The type of the [EvolutionProgress].
-     * @param id The [Identifier].
-     * @param type The [EvolutionProgressType] record.
-     * @return The registered [EvolutionProgressType] of type [T].
-     *
-     * @throws [IllegalStateException] if [Registry.register] fails.
-     */
-    @Throws(IllegalStateException::class)
-    @JvmStatic
-    fun <T : EvolutionProgress<*>> registerType(id: ResourceLocation, type: EvolutionProgressType<T>): EvolutionProgressType<T> {
-        return Registry.register(REGISTRY, id, type)
-    }
-
-    /**
-     * Creates a codec instance of this registry.
-     *
-     * @return The generated [Codec] of [EvolutionProgress].
-     */
-    fun codec(): Codec<EvolutionProgress<*>> = REGISTRY.byNameCodec().dispatch(
-        ServerEvolutionController.ID_KEY,
-        { it.type() },
-        { it.codec }
-    )
-
-}
@@ -12,7 +12,7 @@ import com.cobblemon.mod.common.Cobblemon
 import com.cobblemon.mod.common.api.tags.CobblemonItemTags
 import com.cobblemon.mod.common.battles.pokemon.BattlePokemon
 import com.cobblemon.mod.common.pokemon.OriginalTrainerType
-import com.cobblemon.mod.common.pokemon.requirements.LevelRequirement
+import com.cobblemon.mod.common.pokemon.transformation.requirements.LevelRequirement
 import kotlin.math.pow
 import kotlin.math.roundToInt

@@ -8,6 +8,7 @@

 package com.cobblemon.mod.common.api.pokemon.feature

+import com.cobblemon.mod.common.api.pokemon.PokemonProperties
 import com.cobblemon.mod.common.pokemon.Pokemon
 import com.cobblemon.mod.common.util.readString
 import com.cobblemon.mod.common.util.substitute
@@ -80,4 +81,29 @@ class ChoiceSpeciesFeatureProvider : AbstractChoiceSpeciesFeatureProvider<List<S
        }
        return aspects
    }
+
+    override fun provide(pokemon: Pokemon): Set<String> {
+        return if (isAspect) {
+            get(pokemon)?.let {
+                setOf(getAspect(it))
+            } ?: emptySet()
+        } else {
+            emptySet()
+        }
+    }
+
+    override fun get(pokemon: Pokemon) = pokemon.getFeature<StringSpeciesFeature>(keys.first())
+
+    override fun provide(properties: PokemonProperties): Set<String> {
+        return if (isAspect) {
+            val feature = properties.customProperties.filterIsInstance<StringSpeciesFeature>().find { it.name == keys.first() }
+            if (feature != null) {
+                setOf(getAspect(feature))
+            } else {
+                emptySet()
+            }
+        } else {
+            emptySet()
+        }
+    }
 }
@@ -9,7 +9,7 @@
 package com.cobblemon.mod.common.api.pokemon.feature

 import com.cobblemon.mod.common.api.pokemon.PokemonProperties
-import com.cobblemon.mod.common.api.pokemon.aspect.AspectProvider
+import com.cobblemon.mod.common.api.pokemon.aspect.FeatureAspectProvider
 import com.cobblemon.mod.common.api.properties.CustomPokemonProperty
 import com.cobblemon.mod.common.api.properties.CustomPokemonPropertyType
 import com.cobblemon.mod.common.client.gui.summary.featurerenderers.SummarySpeciesFeatureRenderer
@@ -17,9 +17,9 @@ import com.cobblemon.mod.common.pokemon.Pokemon
 import com.cobblemon.mod.common.util.readString
 import com.cobblemon.mod.common.util.writeString
 import com.google.gson.JsonObject
+import kotlin.random.Random
 import net.minecraft.nbt.CompoundTag
 import net.minecraft.network.RegistryFriendlyByteBuf
-import kotlin.random.Random

 /**
 * A simple [SpeciesFeature] that is a true/false flag value. It implements [CustomPokemonProperty] for use in
@@ -30,65 +30,74 @@ import kotlin.random.Random
 * @author Hiroku
 * @since May 13th, 2022
 */
-open class FlagSpeciesFeature(override val name: String) : SynchronizedSpeciesFeature, CustomPokemonProperty {
+open class FlagSpeciesFeature(override val name: String) : SynchronizedSpeciesFeature<Boolean>, CustomPokemonProperty {
    constructor(name: String, enabled: Boolean): this(name) {
-        this.enabled = enabled
+        this.value = enabled
    }

-    var enabled = false
+    override var value: Boolean = false
    override fun saveToNBT(pokemonNBT: CompoundTag): CompoundTag {
-        pokemonNBT.putBoolean(name, enabled)
+        pokemonNBT.putBoolean(name, value)
        return pokemonNBT
    }

-    override fun loadFromNBT(pokemonNBT: CompoundTag): SpeciesFeature {
-        enabled = if (pokemonNBT.contains(name)) pokemonNBT.getBoolean(name) else enabled
+    override fun loadFromNBT(pokemonNBT: CompoundTag): SpeciesFeature<Boolean> {
+        value = if (pokemonNBT.contains(name)) pokemonNBT.getBoolean(name) else value
        return this
    }

    override fun saveToJSON(pokemonJSON: JsonObject): JsonObject {
-        pokemonJSON.addProperty(name, enabled)
+        pokemonJSON.addProperty(name, value)
        return pokemonJSON
    }

-    override fun loadFromJSON(pokemonJSON: JsonObject): SpeciesFeature {
+    override fun loadFromJSON(pokemonJSON: JsonObject): SpeciesFeature<Boolean> {
        val isEnabled = pokemonJSON.get(name)?.asBoolean
-        enabled = isEnabled ?: this.enabled
+        value = isEnabled ?: this.value
        return this
    }

    override fun saveToBuffer(buffer: RegistryFriendlyByteBuf, toClient: Boolean) {
-        buffer.writeBoolean(enabled)
+        buffer.writeBoolean(value)
    }

    override fun loadFromBuffer(buffer: RegistryFriendlyByteBuf) {
-        enabled = buffer.readBoolean()
+        value = buffer.readBoolean()
    }

-    override fun asString() = "$name=$enabled"
+    override fun asString() = "$name=$value"

    override fun apply(pokemon: Pokemon) {
        val featureProvider = SpeciesFeatures.getFeature(name) ?: return
        if (featureProvider in SpeciesFeatures.getFeaturesFor(pokemon.species)) {
            val existingFeature = pokemon.getFeature<FlagSpeciesFeature>(name)
            if (existingFeature != null) {
-                existingFeature.enabled = enabled
+                existingFeature.value = value
            } else {
-                pokemon.features.add(FlagSpeciesFeature(name, enabled))
+                pokemon.features.add(FlagSpeciesFeature(name, value))
            }
            pokemon.updateAspects()
        }
    }

-    override fun matches(pokemon: Pokemon) = pokemon.getFeature<FlagSpeciesFeature>(name)?.enabled == enabled
+    override fun matches(pokemon: Pokemon) = pokemon.getFeature<FlagSpeciesFeature>(name)?.value == value
 }

-class FlagSpeciesFeatureProvider : SynchronizedSpeciesFeatureProvider<FlagSpeciesFeature>, CustomPokemonPropertyType<FlagSpeciesFeature>, AspectProvider {
+class FlagSpeciesFeatureProvider : SynchronizedSpeciesFeatureProvider<FlagSpeciesFeature>, CustomPokemonPropertyType<FlagSpeciesFeature>, FeatureAspectProvider {
    override var keys: List<String> = emptyList()
    // Uses get() = true because that way there's no backing field. It MUST be true, this way no JSON trickery will overwrite it
    override val needsKey get() = true
-    var default: String? = null
-    var isAspect = true
+    override var default: String? = null
+    override var isAspect = true
+
+    override fun matches(aspect: String): Boolean = this.isAspect && this.keys.first() == aspect
+
+    override fun from(aspect: String): SpeciesFeature<*>? = if (matches(aspect)) fromString(null) else null
+
+    override fun set(pokemon: Pokemon, aspect: String) {
+        this.get(pokemon)?.value = true
+    }
+
    override var visible: Boolean = false

    override fun invoke(buffer: RegistryFriendlyByteBuf, name: String): FlagSpeciesFeature? {
@@ -174,7 +183,7 @@ class FlagSpeciesFeatureProvider : SynchronizedSpeciesFeatureProvider<FlagSpecie
    override fun provide(pokemon: Pokemon): Set<String> {
        return if (isAspect) {
            val feature = pokemon.features.filterIsInstance<FlagSpeciesFeature>().find { it.name in keys }
-            if (feature != null && feature.enabled) {
+            if (feature != null && feature.value) {
                setOf(keys.first())
            } else {
                emptySet()
@@ -187,7 +196,7 @@ class FlagSpeciesFeatureProvider : SynchronizedSpeciesFeatureProvider<FlagSpecie
    override fun provide(properties: PokemonProperties): Set<String> {
        return if (isAspect) {
            val feature = properties.customProperties.filterIsInstance<FlagSpeciesFeature>().find { it.name in keys }
-            if (feature != null && feature.enabled) {
+            if (feature != null && feature.value) {
                setOf(keys.first())
            } else {
                emptySet()
@@ -90,7 +90,7 @@ object GlobalSpeciesFeatures : JsonDataRegistry<SpeciesFeatureProvider<*>> {
    @JvmStatic
    fun register(name: String, provider: SpeciesFeatureProvider<*>) = register(name, provider, isCoded = true)
    @JvmStatic
-    fun <T : SpeciesFeature> register(name: String, providerLambda: () -> T) {
+    fun <T : SpeciesFeature<*>> register(name: String, providerLambda: () -> T) {
        register(name, object : SpeciesFeatureProvider<T> {
            override fun invoke(pokemon: Pokemon) = providerLambda()
            override fun invoke(nbt: CompoundTag) = providerLambda().apply { loadFromNBT(nbt) }
@@ -26,8 +26,8 @@ import net.minecraft.world.phys.Vec3
 * A species feature value that's just an integer. Complex stuff.
 * @author Hiroku
 */
-class IntSpeciesFeature(override var name: String) : SynchronizedSpeciesFeature, CustomPokemonProperty {
-    var value = 0
+class IntSpeciesFeature(override var name: String) : SynchronizedSpeciesFeature<Int>, CustomPokemonProperty {
+    override var value = 0

    constructor() : this("")
    constructor(name: String, value: Int) : this(name) {
@@ -39,7 +39,7 @@ class IntSpeciesFeature(override var name: String) : SynchronizedSpeciesFeature,
        return pokemonNBT
    }

-    override fun loadFromNBT(pokemonNBT: CompoundTag): SynchronizedSpeciesFeature {
+    override fun loadFromNBT(pokemonNBT: CompoundTag): SynchronizedSpeciesFeature<Int> {
        value = pokemonNBT.getInt(name)
        return this
    }
@@ -49,7 +49,7 @@ class IntSpeciesFeature(override var name: String) : SynchronizedSpeciesFeature,
        return pokemonJSON
    }

-    override fun loadFromJSON(pokemonJSON: JsonObject): SpeciesFeature {
+    override fun loadFromJSON(pokemonJSON: JsonObject): SpeciesFeature<Int> {
        value = pokemonJSON.get(name).asInt
        return this
    }
@@ -24,10 +24,11 @@ import net.minecraft.nbt.CompoundTag
 * @author Hiroku
 * @since May 13th, 2022
 */
-interface SpeciesFeature {
+interface SpeciesFeature<T> {
    val name: String
+    var value: T
    fun saveToNBT(pokemonNBT: CompoundTag): CompoundTag
-    fun loadFromNBT(pokemonNBT: CompoundTag): SpeciesFeature
+    fun loadFromNBT(pokemonNBT: CompoundTag): SpeciesFeature<T>
    fun saveToJSON(pokemonJSON: JsonObject): JsonObject
-    fun loadFromJSON(pokemonJSON: JsonObject): SpeciesFeature
+    fun loadFromJSON(pokemonJSON: JsonObject): SpeciesFeature<T>
 }
@@ -21,7 +21,7 @@ import net.minecraft.nbt.CompoundTag
 * @author Hiroku
 * @since November 29th, 2022
 */
-interface SpeciesFeatureProvider<T : SpeciesFeature> {
+interface SpeciesFeatureProvider<T : SpeciesFeature<*>> {
    /**
     * Attempts to create a species feature for the given [Pokemon]. It is appropriate to check for an existing feature
     * that is compatible with this type and transfer / retain that feature instead of constructing a new one. For example
@@ -24,14 +24,14 @@ import net.minecraft.network.RegistryFriendlyByteBuf
 */
 class StringSpeciesFeature(
    override val name: String,
-    var value: String
-) : SynchronizedSpeciesFeature, CustomPokemonProperty {
+    override var value: String
+) : SynchronizedSpeciesFeature<String>, CustomPokemonProperty {
    override fun saveToNBT(pokemonNBT: CompoundTag): CompoundTag {
        pokemonNBT.putString(name, value)
        return pokemonNBT
    }

-    override fun loadFromNBT(pokemonNBT: CompoundTag): SpeciesFeature {
+    override fun loadFromNBT(pokemonNBT: CompoundTag): SpeciesFeature<String> {
        value = pokemonNBT.getString(name)?.takeIf { it.isNotBlank() }?.lowercase() ?: return this
        return this
    }
@@ -41,7 +41,7 @@ class StringSpeciesFeature(
        return pokemonJSON
    }

-    override fun loadFromJSON(pokemonJSON: JsonObject): SpeciesFeature {
+    override fun loadFromJSON(pokemonJSON: JsonObject): SpeciesFeature<String> {
        value = pokemonJSON.get(name)?.asString?.lowercase() ?: return this
        return this
    }
@@ -16,4 +16,4 @@ import com.cobblemon.mod.common.api.serialization.BufferSerializer
 * @author Hiroku
 * @since November 13th, 2023
 */
-interface SynchronizedSpeciesFeature : SpeciesFeature, BufferSerializer
+interface SynchronizedSpeciesFeature<T> : SpeciesFeature<T>, BufferSerializer
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Paul	e29087c805	Added molang TransformationRequirement	2026-06-12 15:18:51 +10:00
Paul	e850253d88	Implemented action-effect driven temporary form reversion and custom Schedulables in action effects	2026-06-12 14:42:14 +10:00
Paul	bbb692f521	Moved transformation progress to a common location and reduced the Transformation tree complexity. Progress works for forms	2026-06-12 12:22:15 +10:00
Paul	da1d67bbe6	Clean up parentForm mechanism in FormData	2026-06-08 09:01:24 +10:00
Paul	792834f219	Oh yeah compilation should succeed	2026-06-04 18:27:37 +10:00
Paul	94b31cd658	Remove comment	2026-06-04 18:08:52 +10:00
Paul	19364f39c6	Renaming and restructuring of the actual starting of transformations, added FormEvents	2026-06-04 14:45:13 +10:00
Paul	2fc8f6b9df	Oi you got a loicense for that television bruv	2026-05-31 22:15:06 +10:00
Paul	9089ff3bbb	Why is the species schema JSON malformed	2026-05-31 21:47:02 +10:00
Paul	90f581051c	Simplifications and straightening of transformation controller class tree and codecs	2026-05-31 21:43:06 +10:00
Paul	061bdcc478	Action effect improvements for form transition effects, some cleanup of TemporaryForm reverting	2026-05-31 14:52:12 +10:00
Paul	6811394f71	Compilation fixes and merge conflict resolutions	2026-05-30 13:08:20 +10:00
Paul	1235a70323	Conflict resolve maybe	2026-05-26 21:15:00 +10:00
Segfault Guy	d94952347f	Portrait updates and form effects.	2025-04-30 00:30:06 -04:00
Segfault Guy	7fe6141640	form20 blaze it	2025-04-20 23:41:12 -04:00
Segfault Guy	4b1653ca6c	Merge remote-tracking branch 'origin/main' into form_changes	2025-04-20 20:53:54 -04:00
Segfault Guy	7265ab57b9	Apply species schema changes to evolutions.	2025-04-11 01:47:41 -04:00
Segfault Guy	27e3a95b06	cleanup test changes	2025-04-11 01:17:29 -04:00
Segfault Guy	38de3c6267	In-battle form changes and PokemonProperties form completion.	2025-04-09 00:18:10 -04:00
Segfault Guy	376e5ac906	Merge branch 'main' into form_changes	2025-03-18 22:26:00 -04:00
Segfault Guy	b225283dcc	Toggleable, deferrable, and wild forms.	2025-03-12 23:00:29 -04:00
Segfault Guy	b90f852a71	Clear invalid forms on species change.	2025-02-24 20:12:23 -05:00
Segfault Guy	fdf7a9703a	coalesce temp and perm forms under same property and instead deserialize by custom adapter instead of having unique properties.	2025-02-23 23:21:43 -05:00
Segfault Guy	bb41f28342	Merge remote-tracking branch 'origin/main' into form_changes	2025-02-18 22:33:23 -05:00
Segfault Guy	c5ee7ebe7a	Fix ability registration for forms.	2025-02-11 21:40:35 -05:00
Segfault Guy	f6ae10e1d9	It's about f(orm)cking time.	2025-02-03 23:38:53 -05:00
Segfault GuyandSegfault Guy	b2070b53fb	Changing form... changes form? Wow!	2024-12-03 23:41:17 -05:00
Segfault GuyandSegfault Guy	7fb873dc2c	Showdown Form and Species registration rework.	2024-12-03 23:10:25 -05:00
Segfault GuyandSegfault Guy	641f529de3	Better Form and Evolution triggering.	2024-12-03 19:12:41 -05:00
Segfault GuyandSegfault Guy	db9fb4fefa	Refactor Evolution and add Transformation to expand application of Evolution events and requirements.	2024-12-02 23:13:57 -05:00