PaperMC/patches/server/0955-Add-CompostItemEvent-and-EntityCompostItemEvent.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Noah van der Aa <ndvdaa@gmail.com>
Date: Sun, 8 Aug 2021 19:56:02 +0200
Subject: [PATCH] Add CompostItemEvent and EntityCompostItemEvent
diff --git a/src/main/java/net/minecraft/world/level/block/ComposterBlock.java b/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
index e81bda56c58df6c3109382c17e86f4cc0f16cf81..fb4382337fe83f7d00c2212a7a71e0ba5bdd51cc 100644
--- a/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
@@ -232,6 +232,9 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
// Paper start - EntityChangeBlockEvent
double rand = world.getRandom().nextDouble();
BlockState dummyBlockState = ComposterBlock.addItem(player, state, org.bukkit.craftbukkit.util.DummyGeneratorAccess.INSTANCE, pos, itemstack, rand);
+ if (dummyBlockState == null) {
+ return InteractionResult.PASS;
+ }
if (state != dummyBlockState && org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(player, pos, dummyBlockState).isCancelled()) { // if block state will change and event cancelled
return InteractionResult.sidedSuccess(world.isClientSide);
}
@@ -261,6 +264,11 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
// CraftBukkit start
double rand = world.getRandom().nextDouble();
BlockState iblockdata1 = ComposterBlock.addItem(user, state, DummyGeneratorAccess.INSTANCE, pos, stack, rand);
+ // Paper start
+ if (iblockdata1 == null) {
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+ return state;
+ }
+ // Paper end
if (state == iblockdata1 || org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(user, pos, iblockdata1).isCancelled()) {
return state;
}
@@ -315,7 +323,22 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
int i = (Integer) iblockdata.getValue(ComposterBlock.LEVEL);
float f = ComposterBlock.COMPOSTABLES.getFloat(itemstack.getItem());
- if ((i != 0 || f <= 0.0F) && rand >= (double) f) {
+ // Paper start
+ boolean willRaiseLevel = !((i != 0 || f <= 0.0F) && rand >= (double) f);
+ if (generatoraccess == DummyGeneratorAccess.INSTANCE || entity == null) { // call event on test run or when entity is null (via hopper)
+ final io.papermc.paper.event.block.CompostItemEvent event;
+ if (entity == null) {
+ event = new io.papermc.paper.event.block.CompostItemEvent(org.bukkit.craftbukkit.block.CraftBlock.at(generatoraccess, blockposition), itemstack.getBukkitStack(), willRaiseLevel);
+ } else {
+ event = new io.papermc.paper.event.entity.EntityCompostItemEvent(entity.getBukkitEntity(), org.bukkit.craftbukkit.block.CraftBlock.at(generatoraccess, blockposition), itemstack.getBukkitStack(), willRaiseLevel);
+ }
+ if (!event.callEvent()) {
+ return null;
+ }
+ willRaiseLevel = event.willRaiseLevel();
+ }
+ if (!willRaiseLevel) {
+ // Paper end
return iblockdata;
} else {
int j = i + 1;
@@ -460,6 +483,11 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
this.changed = true;
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BlockState iblockdata = ComposterBlock.addItem((Entity) null, this.state, this.level, this.pos, itemstack);
+ // Paper start
+ if (iblockdata == null) {
+ return;
+ }
+ // Paper end
this.level.levelEvent(1500, this.pos, iblockdata != this.state ? 1 : 0);
this.removeItemNoUpdate(0);
}