Experience storage for briefcase grill

src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/ExperienceStorage.kt

@@ -23,10 +23,20 @@ import java.util.function.DoubleSupplier
 class ExperienceStorage(val maxExperience: DoubleSupplier = DoubleSupplier { Double.POSITIVE_INFINITY }) : IFluidHandler, INBTSerializable<DoubleTag?>, INeighbourChangeListener {
 	constructor(max: Double) : this({ max })
 
+	private val listeners = ArrayList<Runnable>()
+
+	fun addListener(listener: Runnable) {
+		listeners.add(listener)
+	}
+
 	var experience = 0.0
 		private set(value) {
 			require(value >= 0.0) { "Negative experience: $value" }
+
+			if (field != value) {
 				field = value
+				listeners.forEach { it.run() }
+			}
 		}
 
 	fun popExperience(player: ServerPlayer) {

src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/decorative/GrillBlockEntity.kt

@@ -25,6 +25,7 @@ import org.apache.logging.log4j.LogManager
 import ru.dbotthepony.kommons.util.Delegate
 import ru.dbotthepony.mc.otm.block.IBlockWithCustomName
 import ru.dbotthepony.mc.otm.block.decorative.GrillBlock
+import ru.dbotthepony.mc.otm.block.entity.ExperienceStorage
 import ru.dbotthepony.mc.otm.block.entity.MatteryBlockEntity
 import ru.dbotthepony.mc.otm.block.entity.MatteryDeviceBlockEntity
 import ru.dbotthepony.mc.otm.block.entity.MatteryDeviceBlockEntity.Companion
@@ -106,6 +107,7 @@ class GrillBlockEntity(blockPos: BlockPos, blockState: BlockState) : MatteryBloc
 	private val outputs = arrayOfNulls<SmokingRecipe>(SLOTS)
 	private val activeSlots = IntArrayList()
 	private val inputProgress = IntArray(SLOTS)
+	val experience = ExperienceStorage().also(::addNeighbourListener)
 
 	var fuelTicks = 0
 		private set
@@ -131,10 +133,12 @@ class GrillBlockEntity(blockPos: BlockPos, blockState: BlockState) : MatteryBloc
 	}
 
 	init {
+		experience.addListener(::markDirtyFast)
 		savetablesLevel.int(::fuelTicks)
 		savetablesLevel.int(::fuelTotalTicks)
 		savetables.stateful(::inputSlots)
 		savetables.stateful(::fuelSlot)
+		savetables.stateful(::experience)
 
 		// TODO: could have been done as list (and get more space efficient storage), but we use an array, oh well
 		for (i in inputProgress.indices) {
@@ -181,6 +185,7 @@ class GrillBlockEntity(blockPos: BlockPos, blockState: BlockState) : MatteryBloc
 					val recipe = outputs[slot]!!
 
 					if (recipe.cookingTime * 3 <= ++inputProgress[slot]) {
+						experience.storeExperience(recipe.experience)
 						inputSlots[slot] = recipe.assemble(SingleRecipeInput(inputSlots[slot]), level!!.registryAccess())
 					}
 				}

src/main/kotlin/ru/dbotthepony/mc/otm/menu/decorative/GrillMenu.kt

@@ -1,9 +1,11 @@
 package ru.dbotthepony.mc.otm.menu.decorative
 
 import com.google.common.collect.ImmutableList
+import net.minecraft.server.level.ServerPlayer
 import net.minecraft.world.Container
 import net.minecraft.world.SimpleContainer
 import net.minecraft.world.entity.player.Inventory
+import net.minecraft.world.entity.player.Player
 import net.minecraft.world.item.ItemStack
 import net.minecraft.world.item.crafting.RecipeType
 import net.minecraft.world.item.crafting.SingleRecipeInput
@@ -37,6 +39,13 @@ class GrillMenu(
 		}
 	}) { c, i ->
 		object : MatterySlot(c, i) {
+			override fun onTake(p_150645_: Player, p_150646_: ItemStack) {
+				super.onTake(p_150645_, p_150646_)
+
+				if (p_150645_ is ServerPlayer)
+					tile?.experience?.popExperience(p_150645_)
+			}
+
 			override fun mayPlace(itemStack: ItemStack): Boolean {
 				val input = SingleRecipeInput(itemStack)
 				return super.mayPlace(itemStack) && player.level().recipeManager.byType(RecipeType.SMOKING).any { it.value.matches(input, player.level()) }