Add custom foliage placer for apricorn trees

common/src/main/kotlin/com/cobblemon/mod/common/Cobblemon.kt

@@ -188,6 +188,7 @@ object Cobblemon {
         implementation.registerEntityAttributes()
         implementation.registerBlockEntityTypes()
         implementation.registerWorldGenFeatures()
+        implementation.registerFoliagePlacers()
         implementation.registerParticles()
 
         DropEntry.register("command", CommandDropEntry::class.java)

common/src/main/kotlin/com/cobblemon/mod/common/CobblemonImplementation.kt

@@ -106,6 +106,8 @@ interface CobblemonImplementation {
      */
     fun registerWorldGenFeatures()
 
+    fun registerFoliagePlacers()
+
     fun registerParticles()
 
     /**

common/src/main/kotlin/com/cobblemon/mod/common/world/foliage/ApricornFoliagePlacer.kt

@@ -0,0 +1,60 @@
+package com.cobblemon.mod.common.world.foliage
+
+import com.cobblemon.mod.common.util.cobblemonResource
+import com.mojang.serialization.codecs.RecordCodecBuilder
+import net.minecraft.util.math.intprovider.IntProvider
+import net.minecraft.util.math.random.Random
+import net.minecraft.world.TestableWorld
+import net.minecraft.world.gen.feature.TreeFeatureConfig
+import net.minecraft.world.gen.foliage.FoliagePlacer
+
+class ApricornFoliagePlacer(
+    val radius: IntProvider,
+    val offset: IntProvider
+) : FoliagePlacer(radius, offset) {
+    override fun getType() = CobblemonFoliagePlacers.APRICORN_FOLIAGE_PLACER_TYPE
+
+    override fun generate(
+        world: TestableWorld?,
+        placer: BlockPlacer?,
+        random: Random?,
+        config: TreeFeatureConfig?,
+        trunkHeight: Int,
+        treeNode: TreeNode?,
+        foliageHeight: Int,
+        radius: Int,
+        offset: Int
+    ) {
+        println("Generating Apricorn Foliage")
+    }
+
+    override fun getRandomHeight(
+        random: Random?,
+        trunkHeight: Int,
+        config: TreeFeatureConfig?
+    ): Int {
+        return 0
+    }
+
+    override fun isInvalidForLeaves(
+        random: Random?,
+        dx: Int,
+        y: Int,
+        dz: Int,
+        radius: Int,
+        giantTrunk: Boolean
+    ): Boolean {
+        return false
+    }
+
+    companion object {
+        val CODEC = RecordCodecBuilder.mapCodec {
+            it.group(
+                IntProvider.createValidatingCodec(0, 16).fieldOf("radius").forGetter<ApricornFoliagePlacer> {it.radius},
+                IntProvider.createValidatingCodec(0, 16).fieldOf("offset").forGetter<ApricornFoliagePlacer> {it.offset}
+            ).apply(it, ::ApricornFoliagePlacer)
+        }
+        val ID = cobblemonResource("apricorn_foliage_placer")
+    }
+
+}

common/src/main/kotlin/com/cobblemon/mod/common/world/foliage/CobblemonFoliagePlacers.kt

@@ -0,0 +1,21 @@
+package com.cobblemon.mod.common.world.foliage
+
+import com.cobblemon.mod.common.platform.PlatformRegistry
+import net.minecraft.registry.Registries
+import net.minecraft.registry.Registry
+import net.minecraft.registry.RegistryKey
+import net.minecraft.registry.RegistryKeys
+import net.minecraft.world.gen.foliage.FoliagePlacerType
+
+/**
+ * Wow what a cool class
+ *
+ * @author Apion
+ * @since May 23, 2024
+ */
+object CobblemonFoliagePlacers : PlatformRegistry<Registry<FoliagePlacerType<*>>, RegistryKey<Registry<FoliagePlacerType<*>>>, FoliagePlacerType<*>>() {
+    val APRICORN_FOLIAGE_PLACER_TYPE = this.create("apricorn_foliage_placer", FoliagePlacerType(ApricornFoliagePlacer.CODEC.codec()))
+
+    override val registry = Registries.FOLIAGE_PLACER_TYPE
+    override val registryKey = RegistryKeys.FOLIAGE_PLACER_TYPE
+}

common/src/main/resources/cobblemon-common.accesswidener

@@ -98,4 +98,6 @@ transitive-accessible class net/minecraft/client/model/ModelPart$Quad
 transitive-accessible method net/minecraft/entity/ai/brain/Activity <init> (Ljava/lang/String;)V
 #accessible method net/minecraft/client/render/RenderLayer$MultiPhase (Ljava/lang/String;Lnet/minecraft/client/render/VertexFormat;Lnet/minecraft/client/render/VertexFormat$DrawMode;IZZLnet/minecraft/client/render/RenderLayer$MultiPhaseParameters;)Lnet/minecraft/client/render/RenderLayer$MultiPhase;
 
+transitive-accessible method net/minecraft/world/gen/foliage/FoliagePlacerType <init> (Lcom/mojang/serialization/Codec;)V
+
 #String name, VertexFormat vertexFormat, VertexFormat.DrawMode drawMode, int expectedBufferSize, boolean hasCrumbling, boolean translucent, MultiPhaseParameters phases

fabric/src/main/kotlin/com/cobblemon/mod/fabric/CobblemonFabric.kt

@@ -21,6 +21,7 @@ import com.cobblemon.mod.common.util.didSleep
 import com.cobblemon.mod.common.util.endsWith
 import com.cobblemon.mod.common.world.CobblemonStructures
 import com.cobblemon.mod.common.world.feature.CobblemonFeatures
+import com.cobblemon.mod.common.world.foliage.CobblemonFoliagePlacers
 import com.cobblemon.mod.common.world.placementmodifier.CobblemonPlacementModifierTypes
 import com.cobblemon.mod.common.world.predicate.CobblemonBlockPredicates
 import com.cobblemon.mod.common.world.structureprocessors.CobblemonProcessorTypes
@@ -239,6 +240,10 @@ object CobblemonFabric : CobblemonImplementation {
         CobblemonFeatures.register { identifier, feature -> Registry.register(CobblemonFeatures.registry, identifier, feature) }
     }
 
+    override fun registerFoliagePlacers() {
+        CobblemonFoliagePlacers.register { identifier, foliagePlacerType -> Registry.register(CobblemonFoliagePlacers.registry, identifier, foliagePlacerType) }
+    }
+
     override fun registerParticles() {
         CobblemonParticles.register { identifier, particleType -> Registry.register(CobblemonParticles.registry, identifier, particleType) }
     }

forge/src/main/kotlin/com/cobblemon/mod/forge/CobblemonForge.kt

@@ -20,6 +20,7 @@ import com.cobblemon.mod.common.util.didSleep
 import com.cobblemon.mod.common.util.endsWith
 import com.cobblemon.mod.common.world.CobblemonStructures
 import com.cobblemon.mod.common.world.feature.CobblemonFeatures
+import com.cobblemon.mod.common.world.foliage.CobblemonFoliagePlacers
 import com.cobblemon.mod.common.world.placementmodifier.CobblemonPlacementModifierTypes
 import com.cobblemon.mod.common.world.predicate.CobblemonBlockPredicates
 import com.cobblemon.mod.common.world.structureprocessors.CobblemonProcessorTypes
@@ -166,6 +167,7 @@ class CobblemonForge : CobblemonImplementation {
                 ForgeRegistries.ACTIVITIES.register(cobblemonResource(it.id), it)
             }
         }
+
     }
 
     fun onDataPackSync(event: OnDatapackSyncEvent) {
@@ -280,6 +282,16 @@ class CobblemonForge : CobblemonImplementation {
         }
     }
 
+    override fun registerFoliagePlacers() {
+        MOD_BUS.addListener<RegisterEvent> { event ->
+            event.register(RegistryKeys.FOLIAGE_PLACER_TYPE) {
+                CobblemonFoliagePlacers.register {id, entry ->
+                    it.register(id, entry)
+                }
+            }
+        }
+    }
+
     override fun addFeatureToWorldGen(feature: RegistryKey<PlacedFeature>, step: GenerationStep.Feature, validTag: TagKey<Biome>?) {
         CobblemonBiomeModifiers.add(feature, step, validTag)
     }