From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jake Potrebic Date: Tue, 18 May 2021 12:32:02 -0700 Subject: [PATCH] Add drops to shear events diff --git a/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java index 9b5a1dc958232e4c2c9631f3504edc6383afd92a..f5206e4176f58cff4cfe70c94f014afebc98c589 100644 --- a/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java +++ b/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java @@ -103,11 +103,14 @@ public class ShearsDispenseItemBehavior extends OptionalDispenseItemBehavior { if (entityliving instanceof Shearable ishearable) { if (ishearable.readyForShearing()) { // CraftBukkit start - if (CraftEventFactory.callBlockShearEntityEvent(entityliving, bukkitBlock, craftItem).isCancelled()) { + // Paper start - Add drops to shear events + org.bukkit.event.block.BlockShearEntityEvent event = CraftEventFactory.callBlockShearEntityEvent(entityliving, bukkitBlock, craftItem, ishearable.generateDefaultDrops(worldserver, itemstack)); + if (event.isCancelled()) { + // Paper end - Add drops to shear events continue; } // CraftBukkit end - ishearable.shear(worldserver, SoundSource.BLOCKS, itemstack); + ishearable.shear(worldserver, SoundSource.BLOCKS, itemstack, CraftItemStack.asNMSCopy(event.getDrops())); // Paper - Add drops to shear events worldserver.gameEvent((Entity) null, (Holder) GameEvent.SHEAR, blockposition); return true; } diff --git a/src/main/java/net/minecraft/world/entity/Shearable.java b/src/main/java/net/minecraft/world/entity/Shearable.java index a3095eee48d8b87a35ad35da9c8a2a9ca20c92bc..88dcde6c901753d002a99333eb646bda17122c95 100644 --- a/src/main/java/net/minecraft/world/entity/Shearable.java +++ b/src/main/java/net/minecraft/world/entity/Shearable.java @@ -5,7 +5,13 @@ import net.minecraft.sounds.SoundSource; import net.minecraft.world.item.ItemStack; public interface Shearable { + default void shear(ServerLevel world, SoundSource soundCategory, ItemStack shears, java.util.List drops) { this.shear(world, soundCategory, shears); } // Paper - Add drops to shear events void shear(ServerLevel world, SoundSource shearedSoundCategory, ItemStack shears); boolean readyForShearing(); + // Paper start - custom shear drops; ensure all implementing entities override this + default java.util.List generateDefaultDrops(final ServerLevel serverLevel, final ItemStack shears) { + return java.util.Collections.emptyList(); + } + // Paper end - custom shear drops } diff --git a/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java b/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java index d4d343e2d75a3e3ea787c3c68c64970f5b239f81..fad312784476d361e548a4d4ea942fa60ec72c66 100644 --- a/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java +++ b/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java @@ -46,6 +46,7 @@ import net.minecraft.world.level.storage.loot.BuiltInLootTables; // CraftBukkit start import org.bukkit.Bukkit; import org.bukkit.craftbukkit.event.CraftEventFactory; +import org.bukkit.craftbukkit.inventory.CraftItemStack; import org.bukkit.event.entity.EntityDropItemEvent; import org.bukkit.event.entity.EntityTransformEvent; // CraftBukkit end @@ -128,11 +129,18 @@ public class MushroomCow extends Cow implements Shearable, VariantHolder drops = this.generateDefaultDrops(worldserver, itemstack); + org.bukkit.event.player.PlayerShearEntityEvent event = CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand, drops); + if (event != null) { + if (event.isCancelled()) { + return InteractionResult.PASS; + } + drops = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(event.getDrops()); + // Paper end - custom shear drops } // CraftBukkit end - this.shear(worldserver, SoundSource.PLAYERS, itemstack); + this.shear(worldserver, SoundSource.PLAYERS, itemstack, drops); // Paper - custom shear drops this.gameEvent(GameEvent.SHEAR, player); itemstack.hurtAndBreak(1, player, getSlotForHand(hand)); } @@ -168,22 +176,32 @@ public class MushroomCow extends Cow implements Shearable, VariantHolder generateDefaultDrops(final ServerLevel serverLevel, final ItemStack shears) { + final java.util.List drops = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>(); + this.dropFromShearingLootTable(serverLevel, BuiltInLootTables.SHEAR_MOOSHROOM, shears, (ignored, stack) -> { + for (int i = 0; i < stack.getCount(); ++i) drops.add(stack.copyWithCount(1)); + }); + return drops; + } + + @Override + public void shear(ServerLevel world, SoundSource shearedSoundCategory, ItemStack shears, java.util.List drops) { + // Paper end - custom shear drops world.playSound((Player) null, (Entity) this, SoundEvents.MOOSHROOM_SHEAR, shearedSoundCategory, 1.0F, 1.0F); this.convertTo(EntityType.COW, ConversionParams.single(this, false, false), (entitycow) -> { world.sendParticles(ParticleTypes.EXPLOSION, this.getX(), this.getY(0.5D), this.getZ(), 1, 0.0D, 0.0D, 0.0D, 0.0D); - this.dropFromShearingLootTable(world, BuiltInLootTables.SHEAR_MOOSHROOM, shears, (worldserver1, itemstack1) -> { - for (int i = 0; i < itemstack1.getCount(); ++i) { - // CraftBukkit start - ItemEntity entityitem = new ItemEntity(this.level(), this.getX(), this.getY(1.0D), this.getZ(), itemstack1.copyWithCount(1)); - EntityDropItemEvent event = new EntityDropItemEvent(this.getBukkitEntity(), (org.bukkit.entity.Item) entityitem.getBukkitEntity()); - Bukkit.getPluginManager().callEvent(event); - if (event.isCancelled()) { - continue; - } - worldserver1.addFreshEntity(entityitem); - // CraftBukkit end + // Paper start - custom shear drops; moved drop generation to separate method + drops.forEach(itemstack1 -> { + for (final ItemStack drop : drops) { + ItemEntity entityitem = new ItemEntity(this.level(), this.getX(), this.getY(1.0D), this.getZ(), drop); + this.spawnAtLocation(entityitem); } - + // Paper end - custom shear drops; moved drop generation to separate method }); }, EntityTransformEvent.TransformReason.SHEARED, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SHEARED); // CraftBukkit } diff --git a/src/main/java/net/minecraft/world/entity/animal/Sheep.java b/src/main/java/net/minecraft/world/entity/animal/Sheep.java index 1bc638ab505850bffcbd08025de9664dd27e47c6..432ad1c785e133ef18390108fd342be50ec4dddc 100644 --- a/src/main/java/net/minecraft/world/entity/animal/Sheep.java +++ b/src/main/java/net/minecraft/world/entity/animal/Sheep.java @@ -173,11 +173,18 @@ public class Sheep extends Animal implements Shearable { if (this.readyForShearing()) { // CraftBukkit start - if (!CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand)) { - return InteractionResult.PASS; + // Paper start - custom shear drops + java.util.List drops = this.generateDefaultDrops(worldserver, itemstack); + org.bukkit.event.player.PlayerShearEntityEvent event = CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand, drops); + if (event != null) { + if (event.isCancelled()) { + return InteractionResult.PASS; + } + drops = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(event.getDrops()); + // Paper end - custom shear drops } // CraftBukkit end - this.shear(worldserver, SoundSource.PLAYERS, itemstack); + this.shear(worldserver, SoundSource.PLAYERS, itemstack, drops); // Paper - custom shear drops this.gameEvent(GameEvent.SHEAR, player); itemstack.hurtAndBreak(1, player, getSlotForHand(hand)); return InteractionResult.SUCCESS_SERVER; @@ -192,9 +199,26 @@ public class Sheep extends Animal implements Shearable { @Override public void shear(ServerLevel world, SoundSource shearedSoundCategory, ItemStack shears) { + // Paper start - custom shear drops + this.shear(world, shearedSoundCategory, shears, this.generateDefaultDrops(world, shears)); + } + + @Override + public java.util.List generateDefaultDrops(final ServerLevel serverLevel, final ItemStack shears) { + final java.util.List drops = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>(); + this.dropFromShearingLootTable(serverLevel, BuiltInLootTables.SHEAR_SHEEP, shears, (ignored, stack) -> { + for (int i = 0; i < stack.getCount(); ++i) drops.add(stack.copyWithCount(1)); + }); + return drops; + } + + @Override + public void shear(ServerLevel world, SoundSource shearedSoundCategory, ItemStack shears, java.util.List drops) { + final ServerLevel worldserver1 = world; // Named for lambda consumption + // Paper end - custom shear drops world.playSound((Player) null, (Entity) this, SoundEvents.SHEEP_SHEAR, shearedSoundCategory, 1.0F, 1.0F); - this.dropFromShearingLootTable(world, BuiltInLootTables.SHEAR_SHEEP, shears, (worldserver1, itemstack1) -> { - for (int i = 0; i < itemstack1.getCount(); ++i) { + drops.forEach(itemstack1 -> { // Paper - custom drops - loop in generated default drops + if (true) { // Paper - custom drops - loop in generated default drops this.forceDrops = true; // CraftBukkit ItemEntity entityitem = this.spawnAtLocation(worldserver1, itemstack1.copyWithCount(1), 1.0F); this.forceDrops = false; // CraftBukkit diff --git a/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java b/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java index 975a9e35303bec29aedfbd554c38e4331cdfb174..fd9f6c17448a4d87f940eb8f544ecb9669068582 100644 --- a/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java +++ b/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java @@ -161,11 +161,18 @@ public class SnowGolem extends AbstractGolem implements Shearable, RangedAttackM ServerLevel worldserver = (ServerLevel) world; // CraftBukkit start - if (!CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand)) { - return InteractionResult.PASS; + // Paper start - custom shear drops + java.util.List drops = this.generateDefaultDrops(worldserver, itemstack); + org.bukkit.event.player.PlayerShearEntityEvent event = CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand, drops); + if (event != null) { + if (event.isCancelled()) { + return InteractionResult.PASS; + } + drops = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(event.getDrops()); + // Paper end - custom shear drops } // CraftBukkit end - this.shear(worldserver, SoundSource.PLAYERS, itemstack); + this.shear(worldserver, SoundSource.PLAYERS, itemstack, drops); // Paper - custom shear drops this.gameEvent(GameEvent.SHEAR, player); itemstack.hurtAndBreak(1, player, getSlotForHand(hand)); } @@ -178,9 +185,26 @@ public class SnowGolem extends AbstractGolem implements Shearable, RangedAttackM @Override public void shear(ServerLevel world, SoundSource shearedSoundCategory, ItemStack shears) { + // Paper start - custom shear drops + this.shear(world, shearedSoundCategory, shears, this.generateDefaultDrops(world, shears)); + } + + @Override + public java.util.List generateDefaultDrops(final ServerLevel serverLevel, final ItemStack shears) { + final java.util.List drops = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>(); + this.dropFromShearingLootTable(serverLevel, BuiltInLootTables.SHEAR_SNOW_GOLEM, shears, (ignored, stack) -> { + drops.add(stack); + }); + return drops; + } + + @Override + public void shear(ServerLevel world, SoundSource shearedSoundCategory, ItemStack shears, java.util.List drops) { + final ServerLevel worldserver1 = world; // Named for lambda consumption + // Paper end - custom shear drops world.playSound((Player) null, (Entity) this, SoundEvents.SNOW_GOLEM_SHEAR, shearedSoundCategory, 1.0F, 1.0F); this.setPumpkin(false); - this.dropFromShearingLootTable(world, BuiltInLootTables.SHEAR_SNOW_GOLEM, shears, (worldserver1, itemstack1) -> { + drops.forEach(itemstack1 -> { // Paper - custom shear drops this.forceDrops = true; // CraftBukkit this.spawnAtLocation(worldserver1, itemstack1, this.getEyeHeight()); this.forceDrops = false; // CraftBukkit diff --git a/src/main/java/net/minecraft/world/entity/monster/Bogged.java b/src/main/java/net/minecraft/world/entity/monster/Bogged.java index 9d416f775fa19ad1978c7c9c9e0d5bc16728879d..18dae37d65552077aa3825c76f433bbd31152db9 100644 --- a/src/main/java/net/minecraft/world/entity/monster/Bogged.java +++ b/src/main/java/net/minecraft/world/entity/monster/Bogged.java @@ -27,6 +27,7 @@ import net.minecraft.world.item.Items; import net.minecraft.world.level.Level; import net.minecraft.world.level.gameevent.GameEvent; import net.minecraft.world.level.storage.loot.BuiltInLootTables; +import org.bukkit.craftbukkit.event.CraftEventFactory; public class Bogged extends AbstractSkeleton implements Shearable { @@ -80,12 +81,19 @@ public class Bogged extends AbstractSkeleton implements Shearable { ServerLevel worldserver = (ServerLevel) world; // CraftBukkit start - if (!org.bukkit.craftbukkit.event.CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand)) { - this.getEntityData().markDirty(Bogged.DATA_SHEARED); // CraftBukkit - mark dirty to restore sheared state to clients - return InteractionResult.PASS; + // Paper start - custom shear drops + java.util.List drops = this.generateDefaultDrops(worldserver, itemstack); + org.bukkit.event.player.PlayerShearEntityEvent event = CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand, drops); + if (event != null) { + if (event.isCancelled()) { + this.getEntityData().markDirty(Bogged.DATA_SHEARED); // CraftBukkit - mark dirty to restore sheared state to clients + return InteractionResult.PASS; + } + drops = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(event.getDrops()); + // Paper end - custom shear drops } // CraftBukkit end - this.shear(worldserver, SoundSource.PLAYERS, itemstack); + this.shear(worldserver, SoundSource.PLAYERS, itemstack, drops); // Paper - custom shear drops this.gameEvent(GameEvent.SHEAR, player); itemstack.hurtAndBreak(1, player, getSlotForHand(hand)); } @@ -139,13 +147,32 @@ public class Bogged extends AbstractSkeleton implements Shearable { @Override public void shear(ServerLevel world, SoundSource shearedSoundCategory, ItemStack shears) { + // Paper start - custom shear drops + this.shear(world, shearedSoundCategory, shears, this.generateDefaultDrops(world, shears)); + } + + @Override + public java.util.List generateDefaultDrops(final ServerLevel serverLevel, final ItemStack shears) { + final java.util.List drops = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>(); + this.dropFromShearingLootTable(serverLevel, BuiltInLootTables.BOGGED_SHEAR, shears, (ignored, stack) -> { + drops.add(stack); + }); + return drops; + } + + @Override + public void shear(ServerLevel world, SoundSource shearedSoundCategory, ItemStack shears, java.util.List drops) { + // Paper end - custom shear drops world.playSound((Player) null, (Entity) this, SoundEvents.BOGGED_SHEAR, shearedSoundCategory, 1.0F, 1.0F); - this.spawnShearedMushrooms(world, shears); + this.spawnShearedMushrooms(world, shears, drops); // Paper - custom shear drops this.setSheared(true); } - private void spawnShearedMushrooms(ServerLevel world, ItemStack shears) { - this.dropFromShearingLootTable(world, BuiltInLootTables.BOGGED_SHEAR, shears, (worldserver1, itemstack1) -> { + // Paper start - custom shear drops + private void spawnShearedMushrooms(ServerLevel world, ItemStack shears, java.util.List drops) { + final ServerLevel worldserver1 = world; // Named for lambda consumption + drops.forEach(itemstack1 -> { + // Paper end - custom shear drops this.spawnAtLocation(worldserver1, itemstack1, this.getBbHeight()); }); } diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java index fb75b7f84575c42ab5dcb7e9c5659cecf439da90..89109bf9ad85b1859ce6ae0808ac0a1fb2cb6816 100644 --- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java +++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java @@ -1689,20 +1689,20 @@ public class CraftEventFactory { player.level().getCraftServer().getPluginManager().callEvent(event); } - public static BlockShearEntityEvent callBlockShearEntityEvent(Entity animal, org.bukkit.block.Block dispenser, CraftItemStack is) { - BlockShearEntityEvent bse = new BlockShearEntityEvent(dispenser, animal.getBukkitEntity(), is); + public static BlockShearEntityEvent callBlockShearEntityEvent(Entity animal, org.bukkit.block.Block dispenser, CraftItemStack is, List drops) { // Paper - custom shear drops + BlockShearEntityEvent bse = new BlockShearEntityEvent(dispenser, animal.getBukkitEntity(), is, Lists.transform(drops, CraftItemStack::asCraftMirror)); // Paper - custom shear drops Bukkit.getPluginManager().callEvent(bse); return bse; } - public static boolean handlePlayerShearEntityEvent(net.minecraft.world.entity.player.Player player, Entity sheared, ItemStack shears, InteractionHand hand) { + public static PlayerShearEntityEvent handlePlayerShearEntityEvent(net.minecraft.world.entity.player.Player player, Entity sheared, ItemStack shears, InteractionHand hand, List drops) { // Paper - custom shear drops if (!(player instanceof ServerPlayer)) { - return true; + return null; // Paper - custom shear drops } - PlayerShearEntityEvent event = new PlayerShearEntityEvent((Player) player.getBukkitEntity(), sheared.getBukkitEntity(), CraftItemStack.asCraftMirror(shears), (hand == InteractionHand.OFF_HAND ? EquipmentSlot.OFF_HAND : EquipmentSlot.HAND)); + PlayerShearEntityEvent event = new PlayerShearEntityEvent((Player) player.getBukkitEntity(), sheared.getBukkitEntity(), CraftItemStack.asCraftMirror(shears), (hand == InteractionHand.OFF_HAND ? EquipmentSlot.OFF_HAND : EquipmentSlot.HAND), Lists.transform(drops, CraftItemStack::asCraftMirror)); // Paper - custom shear drops Bukkit.getPluginManager().callEvent(event); - return !event.isCancelled(); + return event; // Paper - custom shear drops } public static Cancellable handleStatisticsIncrease(net.minecraft.world.entity.player.Player entityHuman, net.minecraft.stats.Stat statistic, int current, int newValue) { diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java index 0b7bc5e83634a26ac6521694377b554c74c6bff0..ffd7ba14be38a117f5a7d7035a8d71a20fb1c4fc 100644 --- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java +++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java @@ -74,6 +74,16 @@ public final class CraftItemStack extends ItemStack { return stack; } + // Paper start + public static java.util.List asNMSCopy(java.util.List originals) { + final java.util.List items = new java.util.ArrayList<>(originals.size()); + for (final ItemStack original : originals) { + items.add(asNMSCopy(original)); + } + return items; + } + // Paper end + public static net.minecraft.world.item.ItemStack copyNMSStack(net.minecraft.world.item.ItemStack original, int amount) { net.minecraft.world.item.ItemStack stack = original.copy(); stack.setCount(amount); diff --git a/src/test/java/io/papermc/paper/entity/ShearableDropsTest.java b/src/test/java/io/papermc/paper/entity/ShearableDropsTest.java new file mode 100644 index 0000000000000000000000000000000000000000..5e6dfc93c86ec369b686f15ca066478e1635dbc3 --- /dev/null +++ b/src/test/java/io/papermc/paper/entity/ShearableDropsTest.java @@ -0,0 +1,35 @@ +package io.papermc.paper.entity; + +import io.github.classgraph.ClassGraph; +import io.github.classgraph.ClassInfo; +import io.github.classgraph.MethodInfoList; +import io.github.classgraph.ScanResult; +import java.util.ArrayList; +import net.minecraft.world.entity.Shearable; +import org.bukkit.support.environment.Normal; +import org.junit.jupiter.params.ParameterizedTest; +import org.junit.jupiter.params.provider.MethodSource; + +import static org.junit.jupiter.api.Assertions.assertEquals; + +@Normal +class ShearableDropsTest { + + static Iterable parameters() { + try (ScanResult scanResult = new ClassGraph() + .enableClassInfo() + .enableMethodInfo() + .whitelistPackages("net.minecraft") + .scan() + ) { + return new ArrayList<>(scanResult.getClassesImplementing(Shearable.class.getName())); + } + } + + @ParameterizedTest + @MethodSource("parameters") + void checkShearableDropOverrides(final ClassInfo classInfo) { + final MethodInfoList generateDefaultDrops = classInfo.getDeclaredMethodInfo("generateDefaultDrops"); + assertEquals(1, generateDefaultDrops.size(), classInfo.getName() + " doesn't implement Shearable#generateDefaultDrops"); + } +}