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add DragonEggFormEvent (fixes #5110) (#5112)

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Gergely Sarkozi 2021-01-30 16:22:12 +01:00 committed by GitHub
parent 3eefafbafd
commit b67081fd72
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75
Spigot-API-Patches/0270-add-DragonEggFormEvent.patch Normal file
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@ -0,0 +1,75 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Trigary <trigary0@gmail.com>
Date: Mon, 25 Jan 2021 14:53:49 +0100
Subject: [PATCH] add DragonEggFormEvent
diff --git a/src/main/java/io/papermc/paper/event/block/DragonEggFormEvent.java b/src/main/java/io/papermc/paper/event/block/DragonEggFormEvent.java
new file mode 100644
index 0000000000000000000000000000000000000000..5495b87330518363498e1ac5d8f0a832be35fefb
--- /dev/null
+++ b/src/main/java/io/papermc/paper/event/block/DragonEggFormEvent.java
@@ -0,0 +1,63 @@
+package io.papermc.paper.event.block;
+
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.block.BlockState;
+import org.bukkit.boss.DragonBattle;
+import org.bukkit.entity.EnderDragon;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.block.BlockFormEvent;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Called when the {@link EnderDragon} is defeated (killed) in a {@link DragonBattle},
+ * causing a {@link Material#DRAGON_EGG} (more formally: {@link #getNewState()})
+ * to possibly appear depending on {@link #isCancelled()}.
+ * <b>This event might be cancelled by default depending on
+ * eg. {@link DragonBattle#hasBeenPreviouslyKilled()} and server configuration.</b>
+ */
+public class DragonEggFormEvent extends BlockFormEvent implements Cancellable {
+ private static final HandlerList handlers = new HandlerList();
+ private final DragonBattle dragonBattle;
+ private boolean cancelled;
+
+ public DragonEggFormEvent(@NotNull Block block, @NotNull BlockState newState,
+ @NotNull DragonBattle dragonBattle) {
+ super(block, newState);
+ this.dragonBattle = dragonBattle;
+ }
+
+ @Override
+ public boolean isCancelled() {
+ return cancelled;
+ }
+
+ @Override
+ public void setCancelled(boolean cancelled) {
+ this.cancelled = cancelled;
+ }
+
+ /**
+ * Gets the {@link DragonBattle} associated with this event.
+ * Keep in mind that the {@link EnderDragon} is already dead
+ * when this event is called.
+ *
+ * @return the dragon battle
+ */
+ @NotNull
+ public DragonBattle getDragonBattle() {
+ return dragonBattle;
+ }
+
+ @NotNull
+ @Override
+ public HandlerList getHandlers() {
+ return handlers;
+ }
+
+ @NotNull
+ public static HandlerList getHandlerList() {
+ return handlers;
+ }
+}

66
Spigot-Server-Patches/0668-add-DragonEggFormEvent.patch Normal file
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@ -0,0 +1,66 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Trigary <trigary0@gmail.com>
Date: Mon, 25 Jan 2021 14:53:57 +0100
Subject: [PATCH] add DragonEggFormEvent
diff --git a/src/main/java/net/minecraft/server/EnderDragonBattle.java b/src/main/java/net/minecraft/server/EnderDragonBattle.java
index 7f11adbc5d8527b50f7657d46459516a471017b3..0d8fba494ed11ad79201dfd1c7f3ad5b288ca0ca 100644
--- a/src/main/java/net/minecraft/server/EnderDragonBattle.java
+++ b/src/main/java/net/minecraft/server/EnderDragonBattle.java
@@ -15,6 +15,7 @@ import java.util.function.Predicate;
import javax.annotation.Nullable;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
+import io.papermc.paper.event.block.DragonEggFormEvent; // Paper - DragonEggFormEvent
public class EnderDragonBattle {
@@ -358,9 +359,24 @@ public class EnderDragonBattle {
this.bossBattle.setVisible(false);
this.generateExitPortal(true);
this.n();
+ // Paper start - DragonEggFormEvent
+ BlockPosition eggPosition = this.world.getHighestBlockYAt(HeightMap.Type.MOTION_BLOCKING, WorldGenEndTrophy.getPosition());
+ org.bukkit.craftbukkit.block.CraftBlock eggBlock = org.bukkit.craftbukkit.block.CraftBlock.at(this.world, eggPosition);
+ org.bukkit.craftbukkit.block.CraftBlockState eggState = new org.bukkit.craftbukkit.block.CraftBlockState(eggBlock);
+ eggState.setData(Blocks.DRAGON_EGG.getBlockData());
+ DragonEggFormEvent eggEvent = new DragonEggFormEvent(eggBlock, eggState,
+ new org.bukkit.craftbukkit.boss.CraftDragonBattle(this));
+ // Paper end - DragonEggFormEvent
if (this.world.paperConfig.enderDragonsDeathAlwaysPlacesDragonEgg || !this.previouslyKilled) { // Paper - always place dragon egg
- this.world.setTypeUpdate(this.world.getHighestBlockYAt(HeightMap.Type.MOTION_BLOCKING, WorldGenEndTrophy.a), Blocks.DRAGON_EGG.getBlockData());
+ // Paper start - DragonEggFormEvent
+ //this.world.setTypeUpdate(this.world.getHighestBlockYAt(HeightMap.Type.MOTION_BLOCKING, WorldGenEndTrophy.a), Blocks.DRAGON_EGG.getBlockData());
+ } else {
+ eggEvent.setCancelled(true);
+ }
+ if (eggEvent.callEvent()) {
+ eggEvent.getNewState().update(true);
}
+ // Paper end - DragonEggFormEvent
this.previouslyKilled = true;
this.dragonKilled = true;
diff --git a/src/main/java/net/minecraft/server/WorldGenEndTrophy.java b/src/main/java/net/minecraft/server/WorldGenEndTrophy.java
index dde3c2553adf29b6c97aa9a17b666f2e8ad4d2e6..441f3b6d57f128644ad952ab7f2d090d2140bd0c 100644
--- a/src/main/java/net/minecraft/server/WorldGenEndTrophy.java
+++ b/src/main/java/net/minecraft/server/WorldGenEndTrophy.java
@@ -5,7 +5,7 @@ import java.util.Random;
public class WorldGenEndTrophy extends WorldGenerator<WorldGenFeatureEmptyConfiguration> {
- public static final BlockPosition a = BlockPosition.ZERO;
+ public static final BlockPosition a = BlockPosition.ZERO; public static BlockPosition getPosition() { return a; } // Paper - OBFHELPER
private final boolean ab;
public WorldGenEndTrophy(boolean flag) {
@@ -13,7 +13,7 @@ public class WorldGenEndTrophy extends WorldGenerator<WorldGenFeatureEmptyConfig
this.ab = flag;
}
- public boolean a(GeneratorAccessSeed generatoraccessseed, ChunkGenerator chunkgenerator, Random random, BlockPosition blockposition, WorldGenFeatureEmptyConfiguration worldgenfeatureemptyconfiguration) {
+ public boolean generate(GeneratorAccessSeed generatoraccessseed, ChunkGenerator chunkgenerator, Random random, BlockPosition blockposition, WorldGenFeatureEmptyConfiguration worldgenfeatureemptyconfiguration) { // Paper - decompile fix
Iterator iterator = BlockPosition.a(new BlockPosition(blockposition.getX() - 4, blockposition.getY() - 1, blockposition.getZ() - 4), new BlockPosition(blockposition.getX() + 4, blockposition.getY() + 32, blockposition.getZ() + 4)).iterator();
while (iterator.hasNext()) {