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1b8ab116ed
Paper/patches/server/0921-Add-drops-to-shear-events.patch
Bjarne Koll 77a5779e24
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#11197) 
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
2ec53f49 PR-1050: Fix empty result check for Complex Recipes
10671012 PR-1044: Add CrafterCraftEvent
4d87ffe0 Use correct method in JavaDoc
ae5e5817 SPIGOT-7850: Add API for Bogged shear state
46b6d445 SPIGOT-7837: Support data pack banner patterns
d5d0cefc Fix JavaDoc error
b3c2b83d PR-1036: Add API for InventoryView derivatives
1fe2c75a SPIGOT-7809: Add ShieldMeta

CraftBukkit Changes:
8ee6fd1b8 SPIGOT-7857: Improve ItemMeta block data deserialization
8f26c30c6 SPIGOT-7857: Fix spurious internal NBT tag when deserializing BlockStateMeta
759061b93 SPIGOT-7855: Fire does not spread or burn blocks
00fc9fb64 SPIGOT-7853: AnvilInventory#getRepairCost() always returns 0
7501e2e04 PR-1450: Add CrafterCraftEvent
8c51673e7 SPIGOT-5731: PortalCreateEvent#getEntity returns null for nether portals ignited by flint and steel
d53d0d0b1 PR-1456: Fix inverted logic in CraftCrafterView#setSlotDisabled
682a678c8 SPIGOT-7850: Add API for Bogged shear state
fccf5243a SPIGOT-7837: Support data pack banner patterns
9c3bd4390 PR-1431: Add API for InventoryView derivatives
0cc6acbc4 SPIGOT-7849: Fix FoodComponent serialize with "using-converts-to" using null
2c5474952 Don't rely on tags for CraftItemMetas
20d107e46 SPIGOT-7846: Fix ItemMeta for hanging signs
76f59e315 Remove redundant clone in Dropper InventoryMoveItemEvent
e61a53d25 SPIGOT-7817: Call InventoryMoveItemEvent for Crafters
894682e2d SPIGOT-7839: Remove redundant Java version checks
2c12b2187 SPIGOT-7809: Add ShieldMeta and fix setting shield base colours

Spigot Changes:
fb8fb722 Rebuild patches
34bd42b7 SPIGOT-7835: Fix issue with custom hopper settings
2024-08-09 22:05:50 +02:00

411 Zeilen
23 KiB
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Originalformat Blame Verlauf

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
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 f32f8d5cb22feb885a53d3b56c04ad4219d2bafa..44b79a7c2f8b95a484d1999fa2167ce588f7985b 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());
+ if (event.isCancelled()) {
+ // Paper end - Add drops to shear events
continue;
}
// CraftBukkit end
- ishearable.shear(SoundSource.BLOCKS);
+ ishearable.shear(SoundSource.BLOCKS, 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 5e8cc5cfac8888628c6d513148f41be09ca65a2c..2ee48ac3b665db2b02bcb1a30ec972d43a3725b0 100644
--- a/src/main/java/net/minecraft/world/entity/Shearable.java
+++ b/src/main/java/net/minecraft/world/entity/Shearable.java
@@ -3,7 +3,13 @@ package net.minecraft.world.entity;
import net.minecraft.sounds.SoundSource;
public interface Shearable {
+ default void shear(SoundSource soundCategory, java.util.List<net.minecraft.world.item.ItemStack> drops) { this.shear(soundCategory); } // Paper - Add drops to shear events
void shear(SoundSource shearedSoundCategory);
boolean readyForShearing();
+ // Paper start - custom shear drops; ensure all implementing entities override this
+ default java.util.List<net.minecraft.world.item.ItemStack> generateDefaultDrops() {
+ 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 aa125e3043b120935aaa015803f065f99eb8d050..0c21959f57ae88fcd0a4d6dc911c1ce347c96528 100644
--- a/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java
+++ b/src/main/java/net/minecraft/world/entity/animal/MushroomCow.java
@@ -123,11 +123,18 @@ public class MushroomCow extends Cow implements Shearable, VariantHolder<Mushroo
return InteractionResult.sidedSuccess(this.level().isClientSide);
} else if (itemstack.is(Items.SHEARS) && this.readyForShearing()) {
// CraftBukkit start
- if (!CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand)) {
- return InteractionResult.PASS;
+ // Paper start - custom shear drops
+ java.util.List<ItemStack> drops = this.generateDefaultDrops();
+ 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(SoundSource.PLAYERS);
+ this.shear(SoundSource.PLAYERS, drops); // Paper - custom shear drops
this.gameEvent(GameEvent.SHEAR, player);
if (!this.level().isClientSide) {
itemstack.hurtAndBreak(1, player, getSlotForHand(hand));
@@ -164,6 +171,22 @@ public class MushroomCow extends Cow implements Shearable, VariantHolder<Mushroo
@Override
public void shear(SoundSource shearedSoundCategory) {
+ // Paper start - custom shear drops
+ this.shear(shearedSoundCategory, this.generateDefaultDrops());
+ }
+
+ @Override
+ public java.util.List<ItemStack> generateDefaultDrops() {
+ java.util.List<ItemStack> dropEntities = new java.util.ArrayList<>(5);
+ for (int i = 0; i < 5; ++i) {
+ dropEntities.add(new ItemStack(this.getVariant().getBlockState().getBlock()));
+ }
+ return dropEntities;
+ }
+
+ @Override
+ public void shear(SoundSource shearedSoundCategory, java.util.List<ItemStack> drops) { // If drops is null, need to generate drops
+ // Paper end - custom shear drops
this.level().playSound((Player) null, (Entity) this, SoundEvents.MOOSHROOM_SHEAR, shearedSoundCategory, 1.0F, 1.0F);
if (!this.level().isClientSide()) {
Cow entitycow = (Cow) EntityType.COW.create(this.level());
@@ -193,17 +216,12 @@ public class MushroomCow extends Cow implements Shearable, VariantHolder<Mushroo
this.discard(EntityRemoveEvent.Cause.TRANSFORMATION); // CraftBukkit - from above and add Bukkit remove cause
// CraftBukkit end
- for (int i = 0; i < 5; ++i) {
- // CraftBukkit start
- ItemEntity entityitem = new ItemEntity(this.level(), this.getX(), this.getY(1.0D), this.getZ(), new ItemStack(this.getVariant().blockState.getBlock()));
- EntityDropItemEvent event = new EntityDropItemEvent(this.getBukkitEntity(), (org.bukkit.entity.Item) entityitem.getBukkitEntity());
- Bukkit.getPluginManager().callEvent(event);
- if (event.isCancelled()) {
- continue;
- }
- this.level().addFreshEntity(entityitem);
- // CraftBukkit end
+ // Paper start - custom shear drops; moved drop generation to separate method
+ 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
}
}
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 6b26af41423110bd982eb8c0eea0cba5e9fdc633..38ac2759894660be1ee7ba59b0bd1270158e9232 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Sheep.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Sheep.java
@@ -256,11 +256,18 @@ public class Sheep extends Animal implements Shearable {
if (itemstack.is(Items.SHEARS)) {
if (!this.level().isClientSide && this.readyForShearing()) {
// CraftBukkit start
- if (!CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand)) {
- return InteractionResult.PASS;
+ // Paper start - custom shear drops
+ java.util.List<ItemStack> drops = this.generateDefaultDrops();
+ 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(SoundSource.PLAYERS);
+ this.shear(SoundSource.PLAYERS, drops); // Paper
this.gameEvent(GameEvent.SHEAR, player);
itemstack.hurtAndBreak(1, player, getSlotForHand(hand));
return InteractionResult.SUCCESS;
@@ -274,13 +281,30 @@ public class Sheep extends Animal implements Shearable {
@Override
public void shear(SoundSource shearedSoundCategory) {
+ // Paper start - custom shear drops
+ this.shear(shearedSoundCategory, this.generateDefaultDrops());
+ }
+
+ @Override
+ public java.util.List<ItemStack> generateDefaultDrops() {
+ int count = 1 + this.random.nextInt(3);
+ java.util.List<ItemStack> dropEntities = new java.util.ArrayList<>(count);
+ for (int j = 0; j < count; ++j) {
+ dropEntities.add(new ItemStack(Sheep.ITEM_BY_DYE.get(this.getColor())));
+ }
+ return dropEntities;
+ }
+
+ @Override
+ public void shear(SoundSource shearedSoundCategory, java.util.List<ItemStack> drops) {
+ // Paper end - custom shear drops
this.level().playSound((Player) null, (Entity) this, SoundEvents.SHEEP_SHEAR, shearedSoundCategory, 1.0F, 1.0F);
this.setSheared(true);
int i = 1 + this.random.nextInt(3);
- for (int j = 0; j < i; ++j) {
+ for (final ItemStack drop : drops) { // Paper - custom shear drops (moved drop generation to separate method)
this.forceDrops = true; // CraftBukkit
- ItemEntity entityitem = this.spawnAtLocation((ItemLike) Sheep.ITEM_BY_DYE.get(this.getColor()), 1);
+ ItemEntity entityitem = this.spawnAtLocation(drop, 1); // Paper - custom shear drops
this.forceDrops = false; // CraftBukkit
if (entityitem != null) {
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 2de1a2f666da9db1832907e1651dbff948e37252..5c2ed3c39c8eb850f3be1e2ea5b5a7ea266e16d1 100644
--- a/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java
+++ b/src/main/java/net/minecraft/world/entity/animal/SnowGolem.java
@@ -146,11 +146,18 @@ public class SnowGolem extends AbstractGolem implements Shearable, RangedAttackM
if (itemstack.is(Items.SHEARS) && this.readyForShearing()) {
// CraftBukkit start
- if (!CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand)) {
- return InteractionResult.PASS;
+ // Paper start - custom shear drops
+ java.util.List<ItemStack> drops = this.generateDefaultDrops();
+ 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(SoundSource.PLAYERS);
+ this.shear(SoundSource.PLAYERS, drops); // Paper
this.gameEvent(GameEvent.SHEAR, player);
if (!this.level().isClientSide) {
itemstack.hurtAndBreak(1, player, getSlotForHand(hand));
@@ -164,12 +171,28 @@ public class SnowGolem extends AbstractGolem implements Shearable, RangedAttackM
@Override
public void shear(SoundSource shearedSoundCategory) {
+ // Paper start - custom shear drops
+ this.shear(shearedSoundCategory, this.generateDefaultDrops());
+ }
+
+ @Override
+ public java.util.List<ItemStack> generateDefaultDrops() {
+ return java.util.Collections.singletonList(new ItemStack(Items.CARVED_PUMPKIN));
+ }
+
+ @Override
+ public void shear(SoundSource shearedSoundCategory, java.util.List<ItemStack> drops) {
+ // Paper end - custom shear drops
this.level().playSound((Player) null, (Entity) this, SoundEvents.SNOW_GOLEM_SHEAR, shearedSoundCategory, 1.0F, 1.0F);
if (!this.level().isClientSide()) {
this.setPumpkin(false);
- this.forceDrops = true; // CraftBukkit
- this.spawnAtLocation(new ItemStack(Items.CARVED_PUMPKIN), this.getEyeHeight());
- this.forceDrops = false; // CraftBukkit
+ // Paper start - custom shear drops (moved drop generation to separate method)
+ for (final ItemStack drop : drops) {
+ this.forceDrops = true;
+ this.spawnAtLocation(drop, this.getEyeHeight());
+ this.forceDrops = false;
+ }
+ // Paper end - custom shear drops
}
}
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 dc6230458e09f7555eee7f6a567ff60ad454666b..9d50b9ac8084f3db1844cc7ad1ce9153614ff9d9 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Bogged.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Bogged.java
@@ -80,12 +80,19 @@ public class Bogged extends AbstractSkeleton implements Shearable {
if (itemstack.is(Items.SHEARS) && this.readyForShearing()) {
// 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 - expose drops in event
+ java.util.List<net.minecraft.world.item.ItemStack> drops = generateDefaultDrops();
+ final org.bukkit.event.player.PlayerShearEntityEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.handlePlayerShearEntityEvent(player, this, itemstack, hand, drops);
+ if (event != null) {
+ if (event.isCancelled()) {
+ if (player instanceof final net.minecraft.server.level.ServerPlayer serverPlayer) this.resendPossiblyDesyncedDataValues(java.util.List.of(Bogged.DATA_SHEARED), serverPlayer);
+ return InteractionResult.PASS;
+ }
+ drops = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(event.getDrops());
+ // Paper end - expose drops in event
}
// CraftBukkit end
- this.shear(SoundSource.PLAYERS);
+ this.shear(SoundSource.PLAYERS, drops); // Paper - expose drops in event
this.gameEvent(GameEvent.SHEAR, player);
if (!this.level().isClientSide) {
itemstack.hurtAndBreak(1, player, getSlotForHand(hand));
@@ -140,12 +147,31 @@ public class Bogged extends AbstractSkeleton implements Shearable {
@Override
public void shear(SoundSource shearedSoundCategory) {
+ // Paper start - shear drop API
+ this.shear(shearedSoundCategory, generateDefaultDrops());
+ }
+
+ @Override
+ public void shear(SoundSource shearedSoundCategory, java.util.List<net.minecraft.world.item.ItemStack> drops) {
+ // Paper end - shear drop API
this.level().playSound((Player) null, (Entity) this, SoundEvents.BOGGED_SHEAR, shearedSoundCategory, 1.0F, 1.0F);
- this.spawnShearedMushrooms();
+ this.spawnDrops(drops); // Paper - shear drop API
this.setSheared(true);
}
private void spawnShearedMushrooms() {
+ // Paper start - shear drops API
+ this.spawnDrops(generateDefaultDrops()); // Only here for people calling spawnSheardMushrooms. Not used otherwise.
+ }
+ private void spawnDrops(java.util.List<net.minecraft.world.item.ItemStack> drops) {
+ drops.forEach(stack -> {
+ this.forceDrops = true;
+ this.spawnAtLocation(stack, this.getBbHeight());
+ this.forceDrops = false;
+ });
+ }
+ private void generateShearedMushrooms(java.util.function.Consumer<ItemStack> stackConsumer) {
+ // Paper end - shear drops API
Level world = this.level();
if (world instanceof ServerLevel worldserver) {
@@ -156,12 +182,21 @@ public class Bogged extends AbstractSkeleton implements Shearable {
while (objectlistiterator.hasNext()) {
ItemStack itemstack = (ItemStack) objectlistiterator.next();
- this.spawnAtLocation(itemstack, this.getBbHeight());
+ stackConsumer.accept(itemstack); // Paper
}
}
}
+ // Paper start - shear drops API
+ @Override
+ public java.util.List<ItemStack> generateDefaultDrops() {
+ final java.util.List<ItemStack> drops = new java.util.ArrayList<>();
+ this.generateShearedMushrooms(drops::add);
+ return drops;
+ }
+ // Paper end - shear drops API
+
@Override
public boolean readyForShearing() {
return !this.isSheared() && this.isAlive();
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 5ba2fb40e4db033a069b7368b481ac81be109e94..5af27ba31f293ba6bcac37047b760db1c3bd8c5f 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<ItemStack> 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<ItemStack> 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 f33742ee06e8443a5f5adaaa987d7523dc193b5a..a1a32a77bda0560a7b7f30a5d1c1837ee96997d3 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -69,6 +69,16 @@ public final class CraftItemStack extends ItemStack {
return stack;
}
+ // Paper start
+ public static java.util.List<net.minecraft.world.item.ItemStack> asNMSCopy(java.util.List<? extends ItemStack> originals) {
+ final java.util.List<net.minecraft.world.item.ItemStack> 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..e612515f7709dbe5d1fa5751337cdc34fce10a98
--- /dev/null
+++ b/src/test/java/io/papermc/paper/entity/ShearableDropsTest.java
@@ -0,0 +1,34 @@
+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.AbstractTestingBase;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class ShearableDropsTest extends AbstractTestingBase {
+
+ static Iterable<ClassInfo> 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");
+ }
+}
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