mirror of
https://github.com/PaperMC/Paper.git
synced 2024-09-11 22:48:21 +02:00
327 lines
18 KiB
Diff
327 lines
18 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Tue, 18 May 2021 12:32:02 -0700
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Subject: [PATCH] Add drops to shear events
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diff --git a/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java b/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java
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index 45d356c1ed888b4d749379ceaa8a95d7d7c876d5..8d65cdb013706a932c2c73231108b2810b99e1c7 100644
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--- a/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java
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+++ b/src/main/java/net/minecraft/core/dispenser/ShearsDispenseItemBehavior.java
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@@ -103,11 +103,14 @@ public class ShearsDispenseItemBehavior extends OptionalDispenseItemBehavior {
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if (ishearable.readyForShearing()) {
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// CraftBukkit start
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- if (CraftEventFactory.callBlockShearEntityEvent(entityliving, bukkitBlock, craftItem).isCancelled()) {
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+ // Paper start - Add drops to shear events
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+ org.bukkit.event.block.BlockShearEntityEvent event = CraftEventFactory.callBlockShearEntityEvent(entityliving, bukkitBlock, craftItem, ishearable.generateDefaultDrops());
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+ if (event.isCancelled()) {
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+ // Paper end - Add drops to shear events
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continue;
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}
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// CraftBukkit end
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- ishearable.shear(SoundSource.BLOCKS);
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+ ishearable.shear(SoundSource.BLOCKS, CraftItemStack.asNMSCopy(event.getDrops())); // Paper - Add drops to shear events
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worldserver.gameEvent((Entity) null, GameEvent.SHEAR, blockposition);
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return true;
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}
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diff --git a/src/main/java/net/minecraft/world/entity/Shearable.java b/src/main/java/net/minecraft/world/entity/Shearable.java
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index 5e8cc5cfac8888628c6d513148f41be09ca65a2c..2ee48ac3b665db2b02bcb1a30ec972d43a3725b0 100644
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--- a/src/main/java/net/minecraft/world/entity/Shearable.java
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+++ b/src/main/java/net/minecraft/world/entity/Shearable.java
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@@ -3,7 +3,13 @@ package net.minecraft.world.entity;
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import net.minecraft.sounds.SoundSource;
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public interface Shearable {
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+ default void shear(SoundSource soundCategory, java.util.List<net.minecraft.world.item.ItemStack> drops) { this.shear(soundCategory); } // Paper - Add drops to shear events
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void shear(SoundSource shearedSoundCategory);
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boolean readyForShearing();
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+ // Paper start - custom shear drops; ensure all implementing entities override this
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+ default java.util.List<net.minecraft.world.item.ItemStack> generateDefaultDrops() {
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+ return java.util.Collections.emptyList();
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+ }
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+ // Paper end - custom shear drops
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}
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diff --git a/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java b/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java
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index 7243e4b95e98fda68d9e6adef0e41bebe825961a..161c128d27f50f145f88142191f1a5c93649ea65 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java
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@@ -123,11 +123,18 @@ public class MushroomCow extends Cow implements Shearable, VariantHolder<Mushroo
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return InteractionResult.sidedSuccess(this.level().isClientSide);
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} else if (itemstack.is(Items.SHEARS) && this.readyForShearing()) {
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// CraftBukkit start
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- if (!CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand)) {
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- return InteractionResult.PASS;
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+ // Paper start - custom shear drops
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+ List<ItemStack> drops = this.generateDefaultDrops();
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+ org.bukkit.event.player.PlayerShearEntityEvent event = CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand, drops);
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+ if (event != null) {
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+ if (event.isCancelled()) {
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+ return InteractionResult.PASS;
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+ }
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+ drops = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(event.getDrops());
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}
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+ // Paper end - custom shear drops
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// CraftBukkit end
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- this.shear(SoundSource.PLAYERS);
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+ this.shear(SoundSource.PLAYERS, drops); // Paper - custom shear drops
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this.gameEvent(GameEvent.SHEAR, player);
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if (!this.level().isClientSide) {
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itemstack.hurtAndBreak(1, player, (entityhuman1) -> {
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@@ -168,6 +175,22 @@ public class MushroomCow extends Cow implements Shearable, VariantHolder<Mushroo
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@Override
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public void shear(SoundSource shearedSoundCategory) {
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+ // Paper start - custom shear drops
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+ this.shear(shearedSoundCategory, this.generateDefaultDrops());
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+ }
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+
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+ @Override
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+ public List<ItemStack> generateDefaultDrops() {
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+ List<ItemStack> dropEntities = new java.util.ArrayList<>(5);
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+ for (int i = 0; i < 5; ++i) {
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+ dropEntities.add(new ItemStack(this.getVariant().getBlockState().getBlock()));
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+ }
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+ return dropEntities;
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+ }
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+
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+ @Override
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+ public void shear(SoundSource shearedSoundCategory, List<ItemStack> drops) { // If drops is null, need to generate drops
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+ // Paper end - custom shear drops
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this.level().playSound((Player) null, (Entity) this, SoundEvents.MOOSHROOM_SHEAR, shearedSoundCategory, 1.0F, 1.0F);
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if (!this.level().isClientSide()) {
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Cow entitycow = (Cow) EntityType.COW.create(this.level());
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@@ -197,17 +220,12 @@ public class MushroomCow extends Cow implements Shearable, VariantHolder<Mushroo
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this.discard(EntityRemoveEvent.Cause.TRANSFORMATION); // CraftBukkit - from above and add Bukkit remove cause
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// CraftBukkit end
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- for (int i = 0; i < 5; ++i) {
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- // CraftBukkit start
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- ItemEntity entityitem = new ItemEntity(this.level(), this.getX(), this.getY(1.0D), this.getZ(), new ItemStack(this.getVariant().blockState.getBlock()));
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- EntityDropItemEvent event = new EntityDropItemEvent(this.getBukkitEntity(), (org.bukkit.entity.Item) entityitem.getBukkitEntity());
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- Bukkit.getPluginManager().callEvent(event);
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- if (event.isCancelled()) {
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- continue;
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- }
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- this.level().addFreshEntity(entityitem);
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- // CraftBukkit end
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+ // Paper start - custom shear drops; moved drop generation to separate method
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+ for (final ItemStack drop : drops) {
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+ ItemEntity entityitem = new ItemEntity(this.level(), this.getX(), this.getY(1.0D), this.getZ(), drop);
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+ this.spawnAtLocation(entityitem);
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}
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+ // Paper end - custom shear drops
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}
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}
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diff --git a/src/main/java/net/minecraft/world/entity/animal/Sheep.java b/src/main/java/net/minecraft/world/entity/animal/Sheep.java
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index 55afa58f3df53ce548c7484d8fff62c903f9dc07..1d80678f7e8f658e43616f0baf723f096a99122a 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/Sheep.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/Sheep.java
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@@ -253,11 +253,18 @@ public class Sheep extends Animal implements Shearable {
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if (itemstack.is(Items.SHEARS)) {
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if (!this.level().isClientSide && this.readyForShearing()) {
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// CraftBukkit start
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- if (!CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand)) {
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- return InteractionResult.PASS;
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+ // Paper start - custom shear drops
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+ java.util.List<ItemStack> drops = this.generateDefaultDrops();
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+ org.bukkit.event.player.PlayerShearEntityEvent event = CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand, drops);
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+ if (event != null) {
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+ if (event.isCancelled()) {
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+ return InteractionResult.PASS;
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+ }
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+ drops = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(event.getDrops());
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}
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+ // Paper end - custom shear drops
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// CraftBukkit end
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- this.shear(SoundSource.PLAYERS);
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+ this.shear(SoundSource.PLAYERS, drops); // Paper
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this.gameEvent(GameEvent.SHEAR, player);
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itemstack.hurtAndBreak(1, player, (entityhuman1) -> {
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entityhuman1.broadcastBreakEvent(hand);
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@@ -273,13 +280,30 @@ public class Sheep extends Animal implements Shearable {
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@Override
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public void shear(SoundSource shearedSoundCategory) {
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+ // Paper start - custom shear drops
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+ this.shear(shearedSoundCategory, this.generateDefaultDrops());
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+ }
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+
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+ @Override
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+ public java.util.List<ItemStack> generateDefaultDrops() {
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+ int count = 1 + this.random.nextInt(3);
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+ java.util.List<ItemStack> dropEntities = new java.util.ArrayList<>(count);
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+ for (int j = 0; j < count; ++j) {
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+ dropEntities.add(new ItemStack(Sheep.ITEM_BY_DYE.get(this.getColor())));
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+ }
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+ return dropEntities;
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+ }
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+
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+ @Override
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+ public void shear(SoundSource shearedSoundCategory, java.util.List<ItemStack> drops) {
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+ // Paper end - custom shear drops
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this.level().playSound((Player) null, (Entity) this, SoundEvents.SHEEP_SHEAR, shearedSoundCategory, 1.0F, 1.0F);
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this.setSheared(true);
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int i = 1 + this.random.nextInt(3);
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- for (int j = 0; j < i; ++j) {
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+ for (final ItemStack drop : drops) { // Paper - custom shear drops (moved drop generation to separate method)
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this.forceDrops = true; // CraftBukkit
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- ItemEntity entityitem = this.spawnAtLocation((ItemLike) Sheep.ITEM_BY_DYE.get(this.getColor()), 1);
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+ ItemEntity entityitem = this.spawnAtLocation(drop, 1); // Paper - custom shear drops
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this.forceDrops = false; // CraftBukkit
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if (entityitem != null) {
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diff --git a/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java b/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java
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index 54c01fdaf507a30196fb8f38888a570f9e393559..9eab1170cb123d3b60a02314702516704f959ab7 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java
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@@ -153,11 +153,18 @@ public class SnowGolem extends AbstractGolem implements Shearable, RangedAttackM
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if (itemstack.is(Items.SHEARS) && this.readyForShearing()) {
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// CraftBukkit start
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- if (!CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand)) {
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- return InteractionResult.PASS;
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+ // Paper start - custom shear drops
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+ java.util.List<ItemStack> drops = this.generateDefaultDrops();
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+ org.bukkit.event.player.PlayerShearEntityEvent event = CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand, drops);
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+ if (event != null) {
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+ if (event.isCancelled()) {
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+ return InteractionResult.PASS;
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+ }
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+ drops = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(event.getDrops());
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}
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+ // Paper end - custom shear drops
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// CraftBukkit end
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- this.shear(SoundSource.PLAYERS);
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+ this.shear(SoundSource.PLAYERS, drops); // Paper
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this.gameEvent(GameEvent.SHEAR, player);
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if (!this.level().isClientSide) {
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itemstack.hurtAndBreak(1, player, (entityhuman1) -> {
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@@ -173,12 +180,28 @@ public class SnowGolem extends AbstractGolem implements Shearable, RangedAttackM
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@Override
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public void shear(SoundSource shearedSoundCategory) {
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+ // Paper start - custom shear drops
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+ this.shear(shearedSoundCategory, this.generateDefaultDrops());
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+ }
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+
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+ @Override
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+ public java.util.List<ItemStack> generateDefaultDrops() {
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+ return java.util.Collections.singletonList(new ItemStack(Items.CARVED_PUMPKIN));
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+ }
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+
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+ @Override
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+ public void shear(SoundSource shearedSoundCategory, java.util.List<ItemStack> drops) {
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+ // Paper end - custom shear drops
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this.level().playSound((Player) null, (Entity) this, SoundEvents.SNOW_GOLEM_SHEAR, shearedSoundCategory, 1.0F, 1.0F);
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if (!this.level().isClientSide()) {
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this.setPumpkin(false);
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- this.forceDrops = true; // CraftBukkit
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- this.spawnAtLocation(new ItemStack(Items.CARVED_PUMPKIN), 1.7F);
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- this.forceDrops = false; // CraftBukkit
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+ // Paper start - custom shear drops (moved drop generation to separate method)
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+ for (final ItemStack drop : drops) {
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+ this.forceDrops = true;
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+ this.spawnAtLocation(drop, 1.7F);
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+ this.forceDrops = false;
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+ }
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+ // Paper end - custom shear drops
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}
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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index 99292a908b36e3c75d51c6877c7a0c01d9671aa6..0a041d0e56dfe1319e5174cb0e6085dc35fa5c48 100644
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--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
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@@ -1674,20 +1674,20 @@ public class CraftEventFactory {
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player.level().getCraftServer().getPluginManager().callEvent(event);
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}
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- public static BlockShearEntityEvent callBlockShearEntityEvent(Entity animal, org.bukkit.block.Block dispenser, CraftItemStack is) {
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- BlockShearEntityEvent bse = new BlockShearEntityEvent(dispenser, animal.getBukkitEntity(), is);
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+ public static BlockShearEntityEvent callBlockShearEntityEvent(Entity animal, org.bukkit.block.Block dispenser, CraftItemStack is, List<ItemStack> drops) { // Paper - custom shear drops
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+ BlockShearEntityEvent bse = new BlockShearEntityEvent(dispenser, animal.getBukkitEntity(), is, Lists.transform(drops, CraftItemStack::asCraftMirror)); // Paper - custom shear drops
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Bukkit.getPluginManager().callEvent(bse);
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return bse;
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}
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- public static boolean handlePlayerShearEntityEvent(net.minecraft.world.entity.player.Player player, Entity sheared, ItemStack shears, InteractionHand hand) {
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+ public static PlayerShearEntityEvent handlePlayerShearEntityEvent(net.minecraft.world.entity.player.Player player, Entity sheared, ItemStack shears, InteractionHand hand, List<ItemStack> drops) { // Paper - custom shear drops
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if (!(player instanceof ServerPlayer)) {
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- return true;
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+ return null; // Paper - custom shear drops
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}
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- PlayerShearEntityEvent event = new PlayerShearEntityEvent((Player) player.getBukkitEntity(), sheared.getBukkitEntity(), CraftItemStack.asCraftMirror(shears), (hand == InteractionHand.OFF_HAND ? EquipmentSlot.OFF_HAND : EquipmentSlot.HAND));
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+ 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
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Bukkit.getPluginManager().callEvent(event);
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- return !event.isCancelled();
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+ return event; // Paper - custom shear drops
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}
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public static Cancellable handleStatisticsIncrease(net.minecraft.world.entity.player.Player entityHuman, net.minecraft.stats.Stat<?> statistic, int current, int newValue) {
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diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
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index 38ceeca108c258852eeb7a48015010a689ac43ec..f67b048c3831fcab24acd12249cbd32d386c3ffe 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
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+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
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@@ -66,6 +66,16 @@ public final class CraftItemStack extends ItemStack {
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return stack;
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}
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+ // Paper start
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+ public static java.util.List<net.minecraft.world.item.ItemStack> asNMSCopy(java.util.List<? extends ItemStack> originals) {
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+ final java.util.List<net.minecraft.world.item.ItemStack> items = new java.util.ArrayList<>(originals.size());
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+ for (final ItemStack original : originals) {
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+ items.add(asNMSCopy(original));
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+ }
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+ return items;
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+ }
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+ // Paper end
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+
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public static net.minecraft.world.item.ItemStack copyNMSStack(net.minecraft.world.item.ItemStack original, int amount) {
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net.minecraft.world.item.ItemStack stack = original.copy();
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stack.setCount(amount);
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diff --git a/src/test/java/io/papermc/paper/entity/ShearableDropsTest.java b/src/test/java/io/papermc/paper/entity/ShearableDropsTest.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..e612515f7709dbe5d1fa5751337cdc34fce10a98
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--- /dev/null
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+++ b/src/test/java/io/papermc/paper/entity/ShearableDropsTest.java
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@@ -0,0 +1,34 @@
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+package io.papermc.paper.entity;
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+
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+import io.github.classgraph.ClassGraph;
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+import io.github.classgraph.ClassInfo;
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+import io.github.classgraph.MethodInfoList;
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+import io.github.classgraph.ScanResult;
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+import java.util.ArrayList;
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+import net.minecraft.world.entity.Shearable;
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+import org.bukkit.support.AbstractTestingBase;
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+import org.junit.jupiter.params.ParameterizedTest;
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+import org.junit.jupiter.params.provider.MethodSource;
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+
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+import static org.junit.jupiter.api.Assertions.assertEquals;
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+
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+class ShearableDropsTest extends AbstractTestingBase {
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+
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+ static Iterable<ClassInfo> parameters() {
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+ try (ScanResult scanResult = new ClassGraph()
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+ .enableClassInfo()
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+ .enableMethodInfo()
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+ .whitelistPackages("net.minecraft")
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+ .scan()
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+ ) {
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+ return new ArrayList<>(scanResult.getClassesImplementing(Shearable.class.getName()));
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+ }
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+ }
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+
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+ @ParameterizedTest
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+ @MethodSource("parameters")
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+ void checkShearableDropOverrides(final ClassInfo classInfo) {
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+ final MethodInfoList generateDefaultDrops = classInfo.getDeclaredMethodInfo("generateDefaultDrops");
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+ assertEquals(1, generateDefaultDrops.size(), classInfo.getName() + " doesn't implement Shearable#generateDefaultDrops");
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+ }
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+}
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