Stack aware getFoodComponent

fabric-item-api-v1/src/main/java/net/fabricmc/fabric/api/item/v1/FabricItem.java

@@ -17,12 +17,14 @@
 package net.fabricmc.fabric.api.item.v1;
 
 import com.google.common.collect.Multimap;
+import org.jetbrains.annotations.Nullable;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.EquipmentSlot;
 import net.minecraft.entity.attribute.EntityAttribute;
 import net.minecraft.entity.attribute.EntityAttributeModifier;
 import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.FoodComponent;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.Hand;
@@ -122,4 +124,15 @@ default boolean isSuitableFor(ItemStack stack, BlockState state) {
 	default ItemStack getRecipeRemainder(ItemStack stack) {
 		return ((Item) this).hasRecipeRemainder() ? ((Item) this).getRecipeRemainder().getDefaultStack() : ItemStack.EMPTY;
 	}
+
+	/**
+	 * This is a stack-aware version of {@link Item#getFoodComponent()}.
+	 * Note that simple item remainders can also be set via {@link Item.Settings#food(FoodComponent)}.
+	 * If you want to get a remainder for a stack, is <b>recommended</b> to use the stack version of this method: {@link FabricItemStack#getFoodComponent()}.
+	 *
+	 * @return this item's {@link FoodComponent}, or {@code null} if none was set.
+	 */
+	default @Nullable FoodComponent getFoodComponent(ItemStack stack) {
+		return ((Item) this).getFoodComponent();
+	}
 }

fabric-item-api-v1/src/main/java/net/fabricmc/fabric/api/item/v1/FabricItemStack.java

@@ -16,6 +16,9 @@
 
 package net.fabricmc.fabric.api.item.v1;
 
+import org.jetbrains.annotations.Nullable;
+
+import net.minecraft.item.FoodComponent;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 
@@ -36,4 +39,14 @@ public interface FabricItemStack {
 	default ItemStack getRecipeRemainder() {
 		return ((ItemStack) this).getItem().getRecipeRemainder((ItemStack) this);
 	}
+
+	/**
+	 * Stack-aware version of {@link Item#getFoodComponent()}.
+	 * See {@link FabricItem#getFoodComponent(ItemStack)} for a more in depth description.
+	 *
+	 * @return this itemStack's {@link FoodComponent}, or {@code null} if none was set.
+	 */
+	default @Nullable FoodComponent getFoodComponent() {
+		return ((ItemStack) this).getItem().getFoodComponent(((ItemStack) this));
+	}
 }

fabric-item-api-v1/src/main/java/net/fabricmc/fabric/mixin/item/CatEntityMixin.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2016, 2017, 2018, 2019 FabricMC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.fabricmc.fabric.mixin.item;
+
+import org.jetbrains.annotations.Nullable;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import net.minecraft.entity.passive.CatEntity;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.FoodComponent;
+import net.minecraft.item.Item;
+import net.minecraft.util.Hand;
+
+@Mixin(CatEntity.class)
+class CatEntityMixin {
+	@Redirect(method = "interactMob", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/Item;getFoodComponent()Lnet/minecraft/item/FoodComponent;"))
+	private @Nullable FoodComponent getStackAwareFoodComponent(Item instance, PlayerEntity player, Hand hand) {
+		return player.getStackInHand(hand).getFoodComponent();
+	}
+}

fabric-item-api-v1/src/main/java/net/fabricmc/fabric/mixin/item/HungerManagerMixin.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2016, 2017, 2018, 2019 FabricMC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.fabricmc.fabric.mixin.item;
+
+import org.jetbrains.annotations.Nullable;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import net.minecraft.entity.player.HungerManager;
+import net.minecraft.item.FoodComponent;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+
+@Mixin(HungerManager.class)
+class HungerManagerMixin {
+	@Redirect(method = "eat", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/Item;getFoodComponent()Lnet/minecraft/item/FoodComponent;"))
+	private @Nullable FoodComponent getStackAwareFoodComponent(Item instance, Item item, ItemStack stack) {
+		return stack.getFoodComponent();
+	}
+}

fabric-item-api-v1/src/main/java/net/fabricmc/fabric/mixin/item/ItemMixin.java

@@ -21,9 +21,15 @@
 import org.spongepowered.asm.mixin.Unique;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.FoodComponent;
 import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.Hand;
+import net.minecraft.world.World;
 
 import net.fabricmc.fabric.api.item.v1.CustomDamageHandler;
 import net.fabricmc.fabric.api.item.v1.EquipmentSlotProvider;
@@ -67,4 +73,14 @@ public CustomDamageHandler fabric_getCustomDamageHandler() {
 	public void fabric_setCustomDamageHandler(@Nullable CustomDamageHandler handler) {
 		this.customDamageHandler = handler;
 	}
+
+	@Redirect(method = "use", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/Item;getFoodComponent()Lnet/minecraft/item/FoodComponent;"))
+	private @Nullable FoodComponent getStackAwareFoodComponent(Item instance, World world, PlayerEntity user, Hand hand) {
+		return user.getStackInHand(hand).getFoodComponent();
+	}
+
+	@Redirect(method = "getMaxUseTime", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/Item;getFoodComponent()Lnet/minecraft/item/FoodComponent;"))
+	private @Nullable FoodComponent getStackAwareFoodComponent(Item instance, ItemStack stack) {
+		return stack.getFoodComponent();
+	}
 }

fabric-item-api-v1/src/main/java/net/fabricmc/fabric/mixin/item/LivingEntityMixin.java

@@ -16,20 +16,29 @@
 
 package net.fabricmc.fabric.mixin.item;
 
+import org.jetbrains.annotations.Nullable;
 import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
 import net.minecraft.entity.EquipmentSlot;
 import net.minecraft.entity.LivingEntity;
+import net.minecraft.item.FoodComponent;
+import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraft.world.World;
 
 import net.fabricmc.fabric.api.item.v1.EquipmentSlotProvider;
 import net.fabricmc.fabric.impl.item.ItemExtensions;
 
 @Mixin(LivingEntity.class)
 abstract class LivingEntityMixin {
+	@Shadow
+	protected ItemStack activeItemStack;
+
 	@Inject(method = "getPreferredEquipmentSlot", at = @At(value = "HEAD"), cancellable = true)
 	private static void onGetPreferredEquipmentSlot(ItemStack stack, CallbackInfoReturnable<EquipmentSlot> info) {
 		EquipmentSlotProvider equipmentSlotProvider = ((ItemExtensions) stack.getItem()).fabric_getEquipmentSlotProvider();
@@ -38,4 +47,14 @@ private static void onGetPreferredEquipmentSlot(ItemStack stack, CallbackInfoRet
 			info.setReturnValue(equipmentSlotProvider.getPreferredEquipmentSlot(stack));
 		}
 	}
+
+	@Redirect(method = "shouldSpawnConsumptionEffects", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/Item;getFoodComponent()Lnet/minecraft/item/FoodComponent;"))
+	private @Nullable FoodComponent getStackAwareFoodComponent(Item instance) {
+		return this.activeItemStack.getFoodComponent();
+	}
+
+	@Redirect(method = "applyFoodEffects", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/Item;getFoodComponent()Lnet/minecraft/item/FoodComponent;"))
+	private @Nullable FoodComponent getStackAwareFoodComponent(Item instance, ItemStack stack, World world, LivingEntity targetEntity) {
+		return stack.getFoodComponent();
+	}
 }

fabric-item-api-v1/src/main/java/net/fabricmc/fabric/mixin/item/WolfEntityMixin.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2016, 2017, 2018, 2019 FabricMC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.fabricmc.fabric.mixin.item;
+
+import org.jetbrains.annotations.Nullable;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import net.minecraft.entity.passive.WolfEntity;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.FoodComponent;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.Hand;
+
+@Mixin(WolfEntity.class)
+class WolfEntityMixin {
+	@Redirect(method = "interactMob", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/Item;getFoodComponent()Lnet/minecraft/item/FoodComponent;"))
+	private @Nullable FoodComponent getStackAwareFoodComponent(Item instance, PlayerEntity player, Hand hand) {
+		return player.getStackInHand(hand).getFoodComponent();
+	}
+
+	@Redirect(method = "isBreedingItem", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/Item;getFoodComponent()Lnet/minecraft/item/FoodComponent;"))
+	private @Nullable FoodComponent getStackAwareFoodComponent(Item instance, ItemStack stack) {
+		return stack.getFoodComponent();
+	}
+}

fabric-item-api-v1/src/main/resources/fabric-item-api-v1.mixins.json

@@ -6,10 +6,13 @@
     "AbstractFurnaceBlockEntityMixin",
     "ArmorItemMixin",
     "BrewingStandBlockEntityMixin",
+    "CatEntityMixin",
+    "HungerManagerMixin",
     "ItemMixin",
     "ItemStackMixin",
     "LivingEntityMixin",
-    "RecipeMixin"
+    "RecipeMixin",
+    "WolfEntityMixin"
   ],
   "injectors": {
     "defaultRequire": 1