Paper/patches/server/0848-Add-CompostItemEvent-and-EntityCompostItemEvent.patch
Owen 89d51d5f29
Allow enabling sand duping (#10191)
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable.

It should be noted that this decision does not promise all future exploits will be configurable.
2024-03-03 17:05:34 -05:00

46 lines
2.6 KiB
Diff

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 413b307acaad5823b9e06f49fa2faf561f5f7b9a..f9084e2605d7403721fe6b714bfad051f932aaef 100644
--- a/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/ComposterBlock.java
@@ -328,7 +328,21 @@ 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 - Add CompostItemEvent and EntityCompostItemEvent
+ boolean willRaiseLevel = !((i != 0 || f <= 0.0F) && rand >= (double) f);
+ 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()) { // check for cancellation of entity event (non entity event can't be cancelled cause of hoppers)
+ return null;
+ }
+ willRaiseLevel = event.willRaiseLevel();
+
+ if (!willRaiseLevel) {
+ // Paper end - Add CompostItemEvent and EntityCompostItemEvent
return iblockdata;
} else {
int j = i + 1;
@@ -477,6 +491,11 @@ public class ComposterBlock extends Block implements WorldlyContainerHolder {
if (!itemstack.isEmpty()) {
this.changed = true;
BlockState iblockdata = ComposterBlock.addItem((Entity) null, this.state, this.level, this.pos, itemstack);
+ // Paper start - Add CompostItemEvent and EntityCompostItemEvent
+ if (iblockdata == null) {
+ return;
+ }
+ // Paper end - Add CompostItemEvent and EntityCompostItemEvent
this.level.levelEvent(1500, this.pos, iblockdata != this.state ? 1 : 0);
this.removeItemNoUpdate(0);