mirror of
https://github.com/PaperMC/Paper.git
synced 2024-08-26 14:43:14 +02:00
With the new chunk system it doesn't hurt too much to (temporarily) remove this until implemented in a safer manner
86 lines
5.3 KiB
Diff
86 lines
5.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Jake Potrebic <jake.m.potrebic@gmail.com>
|
|
Date: Wed, 22 Dec 2021 09:51:48 -0800
|
|
Subject: [PATCH] Fix sticky pistons and BlockPistonRetractEvent
|
|
|
|
There is an explicit check in the handling code for empty pistons that
|
|
prevents sticky pistons from firing the event. However when we look back
|
|
at the history we see that this check was originally added so that ONLY
|
|
sticky pistons would fire the retract event. I'm not sure why.
|
|
https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/commits/1092acbddf07edfa4100bc6824504ac75088e913
|
|
|
|
Over the course of several updates, the meaning of that field appears to
|
|
have changed from "is NOT sticky" to "is sticky". So now its having the
|
|
opposite effect. Only normal pistons fire the retraction event. And like
|
|
all things in CB, it's just been carried around since.
|
|
|
|
If we are to believe the history, the correct fix for this issue is to
|
|
flip it so it only fires for sticky pistons, but that puts us in a
|
|
bind. It's already firing for non-sticky pistons, changing it now would
|
|
likely result in breakage. Furthermore, there is little documentation as
|
|
to WHY that was ever intended to be the case.
|
|
|
|
Instead we opt to remove the check entirely so that the event fires for
|
|
all piston types.
|
|
|
|
Co-authored-by: Zach Brown <zach@zachbr.io>
|
|
Co-authored-by: Madeline Miller <mnmiller1@me.com>
|
|
|
|
diff --git a/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java b/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
|
|
index 24a822ade17849a083161216c184f02c30b5cb1f..f456ad8a74464414f69b616a48ee9a2c1cee4d90 100644
|
|
--- a/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
|
|
+++ b/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
|
|
@@ -146,15 +146,15 @@ public class PistonBaseBlock extends DirectionalBlock {
|
|
}
|
|
|
|
// CraftBukkit start
|
|
- if (!this.isSticky) {
|
|
- org.bukkit.block.Block block = world.getWorld().getBlockAt(pos.getX(), pos.getY(), pos.getZ());
|
|
- BlockPistonRetractEvent event = new BlockPistonRetractEvent(block, ImmutableList.<org.bukkit.block.Block>of(), CraftBlock.notchToBlockFace(enumdirection));
|
|
- world.getCraftServer().getPluginManager().callEvent(event);
|
|
-
|
|
- if (event.isCancelled()) {
|
|
- return;
|
|
- }
|
|
- }
|
|
+ // if (!this.isSticky) { // Paper - Move further down
|
|
+ // org.bukkit.block.Block block = world.getWorld().getBlockAt(pos.getX(), pos.getY(), pos.getZ());
|
|
+ // BlockPistonRetractEvent event = new BlockPistonRetractEvent(block, ImmutableList.<org.bukkit.block.Block>of(), CraftBlock.notchToBlockFace(enumdirection));
|
|
+ // world.getCraftServer().getPluginManager().callEvent(event);
|
|
+ //
|
|
+ // if (event.isCancelled()) {
|
|
+ // return;
|
|
+ // }
|
|
+ // }
|
|
// PAIL: checkME - what happened to setTypeAndData?
|
|
// CraftBukkit end
|
|
world.blockEvent(pos, this, b0, enumdirection.get3DDataValue());
|
|
@@ -236,6 +236,13 @@ public class PistonBaseBlock extends DirectionalBlock {
|
|
|
|
BlockState iblockdata1 = (BlockState) ((BlockState) Blocks.MOVING_PISTON.defaultBlockState().setValue(MovingPistonBlock.FACING, enumdirection)).setValue(MovingPistonBlock.TYPE, this.isSticky ? PistonType.STICKY : PistonType.DEFAULT);
|
|
|
|
+ // Paper start - Move empty piston retract call to fix multiple event fires
|
|
+ if (!this.isSticky) {
|
|
+ if (!new BlockPistonRetractEvent(CraftBlock.at(world, pos), java.util.Collections.emptyList(), CraftBlock.notchToBlockFace(enumdirection)).callEvent()) {
|
|
+ return false;
|
|
+ }
|
|
+ }
|
|
+ // Paper end
|
|
world.setBlock(pos, iblockdata1, 20);
|
|
world.setBlockEntity(MovingPistonBlock.newMovingBlockEntity(pos, iblockdata1, (BlockState) this.defaultBlockState().setValue(PistonBaseBlock.FACING, Direction.from3DDataValue(data & 7)), enumdirection, false, true)); // Paper - diff on change
|
|
world.blockUpdated(pos, iblockdata1.getBlock());
|
|
@@ -262,6 +269,13 @@ public class PistonBaseBlock extends DirectionalBlock {
|
|
if (type == 1 && !iblockdata2.isAir() && PistonBaseBlock.isPushable(iblockdata2, world, blockposition1, enumdirection.getOpposite(), false, enumdirection) && (iblockdata2.getPistonPushReaction() == PushReaction.NORMAL || iblockdata2.is(Blocks.PISTON) || iblockdata2.is(Blocks.STICKY_PISTON))) {
|
|
this.moveBlocks(world, pos, enumdirection, false);
|
|
} else {
|
|
+ // Paper start - fire BlockPistonRetractEvent for sticky pistons retracting nothing (air)
|
|
+ if (type == TRIGGER_CONTRACT && iblockdata2.isAir()) {
|
|
+ if (!new BlockPistonRetractEvent(CraftBlock.at(world, pos), java.util.Collections.emptyList(), CraftBlock.notchToBlockFace(enumdirection)).callEvent()) {
|
|
+ return false;
|
|
+ }
|
|
+ }
|
|
+ // Paper end
|
|
world.removeBlock(pos.relative(enumdirection), false);
|
|
}
|
|
}
|