Fixes, tmm multiplayer syncing and cleanup

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

@@ -35,6 +35,7 @@ import com.cobblemon.mod.common.client.net.gui.PokedexUIPacketHandler
 import com.cobblemon.mod.common.client.net.gui.SetActiveTMPacketHandler
 import com.cobblemon.mod.common.client.net.gui.SetTMMachineContainerDataPacketHandler
 import com.cobblemon.mod.common.client.net.gui.SummaryUIPacketHandler
+import com.cobblemon.mod.common.client.net.gui.SynchronizeActiveTMHandler
 import com.cobblemon.mod.common.client.net.habitat.OpenHabitatBlockEditorHandler
 import com.cobblemon.mod.common.client.net.npc.CloseNPCEditorHandler
 import com.cobblemon.mod.common.client.net.npc.OpenNPCEditorHandler
@@ -147,6 +148,7 @@ import com.cobblemon.mod.common.net.messages.client.ui.PokedexUIPacket
 import com.cobblemon.mod.common.net.messages.client.ui.SetActiveTMPacket
 import com.cobblemon.mod.common.net.messages.client.ui.SetTMMachineContainerDataPacket
 import com.cobblemon.mod.common.net.messages.client.ui.SummaryUIPacket
+import com.cobblemon.mod.common.net.messages.client.ui.SynchronizeActiveTMPacket
 import com.cobblemon.mod.common.net.messages.server.BattleChallengePacket
 import com.cobblemon.mod.common.net.messages.server.BattleChallengeResponsePacket
 import com.cobblemon.mod.common.net.messages.server.BenchMovePacket
@@ -375,6 +377,7 @@ object CobblemonNetwork {
         list.add(PacketRegisterInfo(PlayerInteractOptionsPacket.ID, PlayerInteractOptionsPacket::decode, PlayerInteractOptionsHandler))
         list.add(PacketRegisterInfo(PokedexUIPacket.ID, PokedexUIPacket::decode, PokedexUIPacketHandler))
         list.add(PacketRegisterInfo(ExpGainedDataPacket.ID, ExpGainedDataPacket::decode, ExpGainedDataPacketHandler))
+        list.add(PacketRegisterInfo(SynchronizeActiveTMPacket.ID, SynchronizeActiveTMPacket::decode, SynchronizeActiveTMHandler))
 
         // Starter packets
         list.add(PacketRegisterInfo(OpenStarterUIPacket.ID, OpenStarterUIPacket::decode, StarterUIPacketHandler))

common/src/main/kotlin/com/cobblemon/mod/common/block/tmmachine/TMMachineMenu.kt

@@ -10,11 +10,13 @@ package com.cobblemon.mod.common.block.tmmachine
 
 import com.cobblemon.mod.common.CobblemonItems
 import com.cobblemon.mod.common.CobblemonMenuType
+import com.cobblemon.mod.common.CobblemonNetwork.sendPacket
 import com.cobblemon.mod.common.api.moves.Moves
+import com.cobblemon.mod.common.api.tms.TechnicalMachine
 import com.cobblemon.mod.common.api.tms.TechnicalMachines
 import com.cobblemon.mod.common.block.entity.TMMachineBlockEntity
-import com.cobblemon.mod.common.util.itemRegistry
-import net.minecraft.server.level.ServerLevel
+import com.cobblemon.mod.common.net.messages.client.ui.SynchronizeActiveTMPacket
+import net.minecraft.server.level.ServerPlayer
 import net.minecraft.util.Mth
 import net.minecraft.world.Container
 import net.minecraft.world.SimpleContainer
@@ -35,38 +37,20 @@ class TMMachineMenu(menuType: MenuType<*>, syncId: Int) : AbstractContainerMenu(
     var inventory: Container? = null
     var containerData: ContainerData? = null
 
+    var currentlySelectedTM: TechnicalMachine? = null
+    private var lastSelectedTM: TechnicalMachine? = null
+
+    var onSelectedTMUpdate: (TechnicalMachine?) -> Unit = {}
+
     constructor(syncId: Int, playerInventory: Inventory) : this(CobblemonMenuType.TM_MACHINE, syncId) {
         this.playerInventory = playerInventory
         this.inventory = SimpleContainer(5)
         this.containerData = SimpleContainerData(6)
-        this.tmMachineEntity = (inventory as? TMMachineBlockEntity.TMMachineBlockInventory)?.blockEntity
 
         this.addDataSlots(containerData!!)
         inventory?.startOpen(playerInventory.player)
 
-        val startX = 15
-        val startY = 144
-        val slotWidth = 18
-        val slotHeight = 18
-
-        for (row in 0..2) {
-            for (col in 0..8) {
-                this.addSlot(Slot(playerInventory, 9 + (row * 9) + col, startX + (slotWidth * col), startY + (slotHeight * row)))
-            }
-        }
-        for (col in 0..8) {
-            this.addSlot(Slot(playerInventory, col, startX + (slotWidth * col), startY + 58))
-        }
-
-        val container = inventory
-        container?.let {
-            this.addSlot(TMResultSlot(container, RESULT_SLOT, startX + 37, startY - 28)) // Output slot
-            this.addSlot(BlankTMSlot(container, BLANK_TM_SLOT, startX + 90, startY - 28))  // Blank TM
-            for (index in INGREDIENT_SLOTS) {
-                this.addSlot(Slot(container, index, startX + 114 + (18 * (index - INGREDIENT_SLOTS.first)), startY - 28))
-            }
-        }
-        this.addSlotListener(this)
+        initiateSlots()
     }
 
     constructor(syncId: Int, playerInventory: Inventory, inventory: Container, containerData: ContainerData) : this(CobblemonMenuType.TM_MACHINE, syncId) {
@@ -78,6 +62,20 @@ class TMMachineMenu(menuType: MenuType<*>, syncId: Int) : AbstractContainerMenu(
         this.addDataSlots(containerData)
         inventory.startOpen(playerInventory.player)
 
+        initiateSlots()
+
+        tmMachineEntity?.let {
+            val move = Moves.getByName(it.activeMove)
+            move.let {
+                currentlySelectedTM = TechnicalMachines.moveToTM[it]
+                synchronizeSelectedTM()
+            }
+        }
+
+        this.addSlotListener(this)
+    }
+
+    private fun initiateSlots() {
         val startX = 15
         val startY = 144
         val slotWidth = 18
@@ -92,7 +90,7 @@ class TMMachineMenu(menuType: MenuType<*>, syncId: Int) : AbstractContainerMenu(
             this.addSlot(Slot(playerInventory, col, startX + (slotWidth * col), startY + 58))
         }
 
-        val container = inventory
+        val container = inventory!!
         container.let {
             this.addSlot(TMResultSlot(container, RESULT_SLOT, startX + 37, startY - 28)) // Output slot
             this.addSlot(BlankTMSlot(container, BLANK_TM_SLOT, startX + 90, startY - 28))  // Blank TM
@@ -100,7 +98,6 @@ class TMMachineMenu(menuType: MenuType<*>, syncId: Int) : AbstractContainerMenu(
                 this.addSlot(Slot(container, index, startX + 114 + (18 * (index - INGREDIENT_SLOTS.first)), startY - 28))
             }
         }
-        this.addSlotListener(this)
     }
 
     override fun quickMoveStack(player: Player, index: Int): ItemStack {
@@ -207,4 +204,25 @@ class TMMachineMenu(menuType: MenuType<*>, syncId: Int) : AbstractContainerMenu(
     override fun dataChanged(containerMenu: AbstractContainerMenu, dataSlotIndex: Int, value: Int) {
         broadcastChanges()
     }
+
+    fun synchronizeSelectedTM() {
+        val serverPlayer = playerInventory?.player as? ServerPlayer ?: return
+        serverPlayer.sendPacket(SynchronizeActiveTMPacket(currentlySelectedTM))
+        lastSelectedTM = currentlySelectedTM
+    }
+
+    override fun sendAllDataToRemote() {
+        super.sendAllDataToRemote()
+        synchronizeSelectedTM()
+    }
+
+    override fun broadcastChanges() {
+        super.broadcastChanges()
+        if (lastSelectedTM != currentlySelectedTM) synchronizeSelectedTM()
+    }
+
+    fun clientSetSelectedTM(tm: TechnicalMachine?) {
+        currentlySelectedTM = tm
+        onSelectedTMUpdate(tm)
+    }
 }

common/src/main/kotlin/com/cobblemon/mod/common/client/gui/tmmachine/TMMachineScreen.kt

@@ -120,7 +120,7 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
         fun getLogoResource(langCode: String?): ResourceLocation =
             logoResourceMap.entries.find { it.value.contains(langCode?.substringBefore("_")) }?.key ?: logo
     }
-    var selectedTM: TechnicalMachine? = null
+
     var heldStackMove: MoveTemplate? = null
     var tmList: SettableObservable<MutableList<TechnicalMachine>> = SettableObservable(mutableListOf())
     var output: ItemStack? = null
@@ -159,6 +159,8 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
     var oldIngredientItems: Array<Item> = arrayOf(Items.AIR, Items.AIR, Items.AIR)
     var oldResultTmSlotItem: Item = Items.AIR
 
+    var moveInfoTM: TechnicalMachine? = null
+
     override fun init() {
         imageWidth = WIDTH
         imageHeight = HEIGHT
@@ -171,6 +173,8 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
         logoPosY = topPos + 1
         scanPosY = topPos + 1
 
+        menu.onSelectedTMUpdate = { updateSelectedTM(it) }
+
         partySlotList.clear()
         CobblemonClient.storage.party.forEachIndexed { index, pokemon ->
             partySlotList.add(TMPartySlotWidget(
@@ -226,7 +230,14 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
             pX = leftPos + 4,
             pY = topPos + 29,
             tmList,
-            setTM = { tm, clicked -> setSelectedTM(tm, clicked) }
+            setTM = { tm, clicked ->
+                if (clicked) {
+                    if (tm != menu.currentlySelectedTM) SetActiveTMPacket(tm).sendToServer()
+                    setScreenFromMode(TM_BURN_MODE)
+                } else {
+                    updateMoveInformation(tm)
+                }
+            }
         )
         if (!children().contains(movesScrollingList)) addRenderableWidget(movesScrollingList)
 
@@ -252,24 +263,21 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
         selectedMoveButton = MoveSlotButton(
             leftPos + 6,
             topPos + 6,
-            move = selectedTM?.moveName,
-            pp = selectedTM?.moveName?.pp ?: 0,
+            move = menu.currentlySelectedTM?.moveName,
+            pp = menu.currentlySelectedTM?.moveName?.pp ?: 0,
             ppAsFraction = false
         ) {
             if ((it as MoveSlotButton).enabled) {
                 if (::movesScrollingList.isInitialized && movesScrollingList.children().isEmpty()) setMoveList()
                 playSound(CobblemonSounds.GUI_CLICK)
                 setScreenFromMode(MOVE_SELECT_MODE)
-
-                // Clear active TM
-                CobblemonNetwork.sendToServer(SetActiveTMPacket(null))
             }
         }
         if (!children().contains(selectedMoveButton)) addRenderableWidget(selectedMoveButton)
 
         startButton = StartButton(leftPos + 5F, topPos + 35F) {
             if (!(it as StartButton).disabled) {
-                selectedTM?.let {
+                menu.currentlySelectedTM?.let {
                     val burnActive = menu.containerData?.get(TMMachineBlockEntity.BURN_ACTIVE_INDEX) ?: 0
                     CobblemonNetwork.sendToServer(SetTMMachineContainerDataPacket(
                         TMMachineBlockEntity.BURN_ACTIVE_INDEX,
@@ -284,17 +292,14 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
                         ))
                     }*/
 
-                    CobblemonNetwork.sendToServer(SetActiveTMPacket(it))
+                    //CobblemonNetwork.sendToServer(SetActiveTMPacket(it))
                     if (burnActive != 1) playSound(CobblemonSounds.TM_MACHINE_START)
-                    inventory.setChanged()
-                    menu.broadcastChanges()
                 }
             }
         }
         if (!children().contains(startButton)) addRenderableWidget(startButton)
 
         setScreenFromMode(mode)
-        initScreen = false
 
         updateSlotItemMemory()
     }
@@ -306,7 +311,7 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
         if (scanPosY + 1 >= (topPos + SCREEN_SAVER_HEIGHT) * 2) scanPosY = 0
 
         if (mode == TM_BURN_MODE) {
-            selectedTM?.let { tm ->
+            menu.currentlySelectedTM?.let { tm ->
                 val resultStack = menu.inventory!!.getItem(TMMachineMenu.RESULT_SLOT)
                 val craftedTmStack = ItemStack(CobblemonItems.TECHNICAL_MACHINE)
                     .also { TMMoveComponent.setTMMove(it, tm.moveName) }
@@ -339,7 +344,7 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
                 }
 
                 if (::selectedMoveButton.isInitialized) {
-                    selectedMoveButton.enabled = !isBurnActive() && (heldStackMove == null || heldStackMove == selectedTM?.moveName)
+                    selectedMoveButton.enabled = (heldStackMove == null || heldStackMove == menu.currentlySelectedTM?.moveName)
                 }
 
                 if (isBurnActive()) {
@@ -350,9 +355,6 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
                     }
                 }
             }
-        } else {
-            // Check if screen should be switched upon opening UI
-            if (!initScreen) loadBurnScreenData()
         }
 
         if (heldMoveItemChanged) {
@@ -400,32 +402,6 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
         return wasScreenSaverActive
     }
 
-    private fun loadBurnScreenData() {
-        var tm: TechnicalMachine? = null
-
-        val blockPos = menu.containerData?.let {
-            val x = it.get(TMMachineBlockEntity.POSITION_X_INDEX)
-            val y = it.get(TMMachineBlockEntity.POSITION_Y_INDEX)
-            val z = it.get(TMMachineBlockEntity.POSITION_Z_INDEX)
-            BlockPos(x, y, z)
-        }
-
-        inventory.player.level().getBlockEntity(blockPos)?.let { blockEntity ->
-            if (blockEntity is TMMachineBlockEntity) {
-                Moves.getByName(blockEntity.activeMove)?.let {
-                    tm = TechnicalMachines.moveToTM[it]
-                }
-            }
-        }
-
-        // If burn currently in progress or if active TM set, set to burn screen
-        if (isBurnActive() || tm != null) {
-            setSelectedTM(tm, true)
-        }
-
-        initScreen = true
-    }
-
     private fun isBurnActive(): Boolean = (menu.containerData?.get(TMMachineBlockEntity.BURN_ACTIVE_INDEX) ?: 0) == 1
 
     private fun setScreenFromMode(screen: Int) {
@@ -467,7 +443,6 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
 
     private fun toggleTypeSelect(isVisible: Boolean) {
         if (isVisible) {
-            setSelectedTM(null, false)
             if (::moveSearchWidget.isInitialized) moveSearchWidget.value = ""
             if (selectedPokemon != null) selectedPokemon = null
             sortType = null
@@ -505,7 +480,6 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
     }
 
     private fun toggleTMBurn(isVisible: Boolean) {
-        if (!isVisible) setSelectedTM(null, false)
         if (::selectedMoveButton.isInitialized) selectedMoveButton.visible = isVisible
         if (::startButton.isInitialized) startButton.visible = isVisible
     }
@@ -516,35 +490,40 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
         return if (learnableMoves.contains(move)) TMPartySlotWidget.CAN_LEARN else TMPartySlotWidget.CANNOT_LEARN
     }
 
-    fun setSelectedTM(tm: TechnicalMachine?, clicked: Boolean) {
-        if (selectedTM != tm) {
-            selectedTM = tm
-            updatePartySlotStatus(tm?.moveName)
+    fun updateSelectedTM(tm: TechnicalMachine?) {
+        if (!initScreen) {
+            initScreen = true
+            setScreenFromMode(TM_BURN_MODE)
+            tm?.let {
+                sortType = ElementalTypes.get(tm.type)
+                setMoveList()
+            }
         }
 
-        if (::movesScrollingList.isInitialized) {
-            movesScrollingList.setSlotHighlighted(if (clicked) null else selectedTM?.id)
+        if (mode == TM_BURN_MODE) updateMoveInformation(tm)
+
+        tm?.let {
+            if (::selectedMoveButton.isInitialized) {
+                selectedMoveButton.apply {
+                    move = it.moveName
+                    pp = it.moveName.pp
+                }
+            }
         }
+    }
+
+    fun updateMoveInformation(tm: TechnicalMachine?) {
+        moveInfoTM = tm
 
         if (::moveDescriptionWidget.isInitialized) {
-            val selectedDescription = selectedTM?.moveName?.description?.string
+            val selectedDescription = tm?.moveName?.description?.string
             moveDescriptionWidget.setText(
                 if (selectedDescription != null) listOf(selectedDescription) else emptyList()
             )
         }
 
-        if (clicked) {
-            CobblemonNetwork.sendToServer(SetActiveTMPacket(tm))
-
-            selectedTM?.let {
-                if (::selectedMoveButton.isInitialized) {
-                    selectedMoveButton.apply {
-                        move = it.moveName
-                        pp = it.moveName.pp
-                    }
-                    setScreenFromMode(TM_BURN_MODE)
-                }
-            }
+        if (::movesScrollingList.isInitialized) {
+            movesScrollingList.setSlotHighlighted(tm?.id)
         }
     }
 
@@ -557,7 +536,7 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
     }
 
     fun renderDiscTypeOverlay(poseStack: PoseStack, isDiscRotating: Boolean, alpha: Float = 1F) {
-        selectedTM?.let {
+        menu.currentlySelectedTM?.let {
             val primaryRgb = it.moveName.elementalType.primaryColor.toRGB()
             val secondaryRgb = it.moveName.elementalType.secondaryColor.toRGB()
             blitk(
@@ -706,7 +685,7 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
     }
 
     fun renderMoveInfo(context: GuiGraphics, mouseX: Int, mouseY: Int) {
-        val moveTemplate = selectedTM?.moveName
+        val moveTemplate = moveInfoTM?.moveName
 
         blitk(
             matrixStack = context.pose(),
@@ -1057,7 +1036,7 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
                 movesScrollingList.setDisabled(true, TechnicalMachines.moveToTM[heldStackMove])
                 if (mode == MOVE_SELECT_MODE) {
                     val heldStackTm = TechnicalMachines.moveToTM[heldStackMove]
-                    setSelectedTM(if (tmList.get().contains(heldStackTm)) heldStackTm else null, false)
+                    updateMoveInformation(if (tmList.get().contains(heldStackTm)) heldStackTm else null)
 
                     // Scroll to move if moves list contains held TM move
                     if (tmList.get().contains(heldStackTm)) {
@@ -1077,8 +1056,8 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
             heldStackMove = null
 
             // Reset selected move on move select screen
-            if (mode == MOVE_SELECT_MODE) setSelectedTM(null, false)
-            updatePartySlotStatus(selectedTM?.moveName)
+            if (mode == MOVE_SELECT_MODE) updateMoveInformation(null)
+            updatePartySlotStatus(menu.currentlySelectedTM?.moveName)
 
             if (::movesScrollingList.isInitialized) {
                 movesScrollingList.setDisabled(false)
@@ -1155,7 +1134,7 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
         if (isInventoryKeyPressed(minecraft, keyCode, scanCode)) {
             if (searchFocused) { return true }
             else {
-                Minecraft.getInstance().setScreen(null)
+                onClose()
                 return true
             }
         }
@@ -1166,7 +1145,7 @@ class TMMachineScreen(containerMenu: TMMachineMenu, val inventory: Inventory, ti
                 this.focused = null
                 return true
             } else {
-                Minecraft.getInstance().setScreen(null)
+                onClose()
                 return true
             }
         }

common/src/main/kotlin/com/cobblemon/mod/common/client/net/gui/SetActiveTMPacketHandler.kt

@@ -19,7 +19,6 @@ import net.minecraft.world.level.block.Block
 object SetActiveTMPacketHandler : ServerNetworkPacketHandler<SetActiveTMPacket> {
     override fun handle(packet: SetActiveTMPacket, server: MinecraftServer, player: ServerPlayer) {
         val menu = player.containerMenu as? TMMachineMenu ?: return
-        val inventory = menu.inventory ?: return
         val tmData = Cobblemon.playerDataManager.getTMData(player)
 
         if (packet.tm != null && (!packet.tm.isPassivelyObtained() && packet.tm.id !in tmData.learnedTMs)) {
@@ -30,9 +29,17 @@ object SetActiveTMPacketHandler : ServerNetworkPacketHandler<SetActiveTMPacket>
             blockEntity.activeMove = packet.tm?.moveName?.name ?: ""
             blockEntity.setChanged()
             player.level().sendBlockUpdated(blockEntity.blockPos, blockEntity.blockState, blockEntity.blockState, Block.UPDATE_CLIENTS)
-        }
 
-        inventory.setChanged()
-        menu.broadcastChanges()
+            blockEntity.burnActive = false
+            blockEntity.burnProgress = 0
+
+            player.level().players().forEach { thePlayer -> //Update all players with matching menu/blockentity
+                val tmmMenu = thePlayer.containerMenu as? TMMachineMenu ?: return@forEach
+                if (tmmMenu.tmMachineEntity == blockEntity) {
+                    tmmMenu.currentlySelectedTM = packet.tm
+                    tmmMenu.broadcastChanges()
+                }
+            }
+        }
     }
 }

common/src/main/kotlin/com/cobblemon/mod/common/client/net/gui/SynchronizeActiveTMHandler.kt

@@ -0,0 +1,13 @@
+package com.cobblemon.mod.common.client.net.gui
+
+import com.cobblemon.mod.common.api.net.ClientNetworkPacketHandler
+import com.cobblemon.mod.common.block.tmmachine.TMMachineMenu
+import com.cobblemon.mod.common.net.messages.client.ui.SynchronizeActiveTMPacket
+import net.minecraft.client.Minecraft
+
+object SynchronizeActiveTMHandler: ClientNetworkPacketHandler<SynchronizeActiveTMPacket> {
+    override fun handle(packet: SynchronizeActiveTMPacket, client: Minecraft) {
+        val tmmMenu = client.player?.containerMenu as? TMMachineMenu ?: return
+        tmmMenu.clientSetSelectedTM(packet.tm)
+    }
+}

common/src/main/kotlin/com/cobblemon/mod/common/net/messages/client/ui/SynchronizeActiveTMPacket.kt

@@ -0,0 +1,25 @@
+package com.cobblemon.mod.common.net.messages.client.ui
+
+import com.cobblemon.mod.common.api.net.NetworkPacket
+import com.cobblemon.mod.common.api.tms.TechnicalMachine
+import com.cobblemon.mod.common.api.tms.TechnicalMachines
+import com.cobblemon.mod.common.util.cobblemonResource
+import net.minecraft.network.RegistryFriendlyByteBuf
+
+class SynchronizeActiveTMPacket(val tm: TechnicalMachine?): NetworkPacket<SynchronizeActiveTMPacket> {
+    override val id = ID
+
+    override fun encode(buffer: RegistryFriendlyByteBuf) {
+        buffer.writeNullable(tm?.id) { pb, value -> pb.writeResourceLocation(value) }
+    }
+
+    companion object {
+        val ID = cobblemonResource("synchronize_active_tm")
+        fun decode(buffer: RegistryFriendlyByteBuf): SynchronizeActiveTMPacket {
+            val resourceLocation = buffer.readNullable { it.readResourceLocation() }
+            if (resourceLocation == null) return SynchronizeActiveTMPacket(null)
+            val tm = TechnicalMachines.tmMap[resourceLocation]
+            return SynchronizeActiveTMPacket(tm)
+        }
+    }
+}