Paper/Spigot-Server-Patches/0359-BlockDestroyEvent.patch
Spottedleaf 89a1469d3f Resolve memory leak involving TileEntities
Their chunk is set to null before removal, so we kept them around.
2019-05-14 17:19:58 -05:00

42 lines
2.1 KiB
Diff

From b62be4ac2b918c05a97124cdae6401f612efa109 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 6 Feb 2019 00:20:33 -0500
Subject: [PATCH] BlockDestroyEvent
Adds an event for when the server is going to destroy a current block,
potentially causing it to drop. This event can be cancelled to avoid
the block destruction, such as preventing signs from popping when
floating in the air.
This can replace many uses of BlockPhysicsEvent
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index d20077892b..774bb4d0d7 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -478,8 +478,20 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
return false;
} else {
Fluid fluid = this.getFluid(blockposition);
+ // Paper start - while the above setAir method is named same and looks very similar
+ // they are NOT used with same intent and the above should not fire this event. The above method is more of a BlockSetToAirEvent,
+ // it doesn't imply destruction of a block that plays a sound effect / drops an item.
+ boolean playEffect = true;
+ if (com.destroystokyo.paper.event.block.BlockDestroyEvent.getHandlerList().getRegisteredListeners().length > 0) {
+ com.destroystokyo.paper.event.block.BlockDestroyEvent event = new com.destroystokyo.paper.event.block.BlockDestroyEvent(MCUtil.toBukkitBlock(this, blockposition), fluid.getBlockData().createCraftBlockData(), flag);
+ if (!event.callEvent()) {
+ return false;
+ }
+ playEffect = event.playEffect();
+ }
+ // Paper end
- this.triggerEffect(2001, blockposition, Block.getCombinedId(iblockdata));
+ if (playEffect) this.triggerEffect(2001, blockposition, Block.getCombinedId(iblockdata)); // Paper
if (flag) {
TileEntity tileentity = iblockdata.getBlock().isTileEntity() ? this.getTileEntity(blockposition) : null;
--
2.21.0