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928bcc8d3a
Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: 09943450 Update SnakeYAML version 5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc 6f82b381 PR-788: Add getHand() to all relevant events CraftBukkit Changes: aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe 5329dd6fd PR-1107: Add getHand() to all relevant events 93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY
86 Zeilen
5.3 KiB
Diff
86 Zeilen
5.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Wed, 22 Dec 2021 09:51:48 -0800
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Subject: [PATCH] Fix sticky pistons and BlockPistonRetractEvent
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There is an explicit check in the handling code for empty pistons that
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prevents sticky pistons from firing the event. However when we look back
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at the history we see that this check was originally added so that ONLY
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sticky pistons would fire the retract event. I'm not sure why.
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https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/commits/1092acbddf07edfa4100bc6824504ac75088e913
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Over the course of several updates, the meaning of that field appears to
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have changed from "is NOT sticky" to "is sticky". So now its having the
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opposite effect. Only normal pistons fire the retraction event. And like
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all things in CB, it's just been carried around since.
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If we are to believe the history, the correct fix for this issue is to
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flip it so it only fires for sticky pistons, but that puts us in a
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bind. It's already firing for non-sticky pistons, changing it now would
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likely result in breakage. Furthermore, there is little documentation as
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to WHY that was ever intended to be the case.
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Instead we opt to remove the check entirely so that the event fires for
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all piston types.
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Co-authored-by: Zach Brown <zach@zachbr.io>
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Co-authored-by: Madeline Miller <mnmiller1@me.com>
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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
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index 24a822ade17849a083161216c184f02c30b5cb1f..f456ad8a74464414f69b616a48ee9a2c1cee4d90 100644
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--- a/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/piston/PistonBaseBlock.java
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@@ -146,15 +146,15 @@ public class PistonBaseBlock extends DirectionalBlock {
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}
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// CraftBukkit start
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- if (!this.isSticky) {
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- org.bukkit.block.Block block = world.getWorld().getBlockAt(pos.getX(), pos.getY(), pos.getZ());
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- BlockPistonRetractEvent event = new BlockPistonRetractEvent(block, ImmutableList.<org.bukkit.block.Block>of(), CraftBlock.notchToBlockFace(enumdirection));
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- world.getCraftServer().getPluginManager().callEvent(event);
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-
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- if (event.isCancelled()) {
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- return;
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- }
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- }
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+ // if (!this.isSticky) { // Paper - Move further down
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+ // org.bukkit.block.Block block = world.getWorld().getBlockAt(pos.getX(), pos.getY(), pos.getZ());
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+ // BlockPistonRetractEvent event = new BlockPistonRetractEvent(block, ImmutableList.<org.bukkit.block.Block>of(), CraftBlock.notchToBlockFace(enumdirection));
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+ // world.getCraftServer().getPluginManager().callEvent(event);
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+ //
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+ // if (event.isCancelled()) {
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+ // return;
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+ // }
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+ // }
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// PAIL: checkME - what happened to setTypeAndData?
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// CraftBukkit end
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world.blockEvent(pos, this, b0, enumdirection.get3DDataValue());
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@@ -236,6 +236,13 @@ public class PistonBaseBlock extends DirectionalBlock {
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BlockState iblockdata1 = (BlockState) ((BlockState) Blocks.MOVING_PISTON.defaultBlockState().setValue(MovingPistonBlock.FACING, enumdirection)).setValue(MovingPistonBlock.TYPE, this.isSticky ? PistonType.STICKY : PistonType.DEFAULT);
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+ // Paper start - Move empty piston retract call to fix multiple event fires
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+ if (!this.isSticky) {
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+ if (!new BlockPistonRetractEvent(CraftBlock.at(world, pos), java.util.Collections.emptyList(), CraftBlock.notchToBlockFace(enumdirection)).callEvent()) {
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+ return false;
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+ }
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+ }
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+ // Paper end
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world.setBlock(pos, iblockdata1, 20);
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world.setBlockEntity(MovingPistonBlock.newMovingBlockEntity(pos, iblockdata1, (BlockState) this.defaultBlockState().setValue(PistonBaseBlock.FACING, Direction.from3DDataValue(data & 7)), enumdirection, false, true)); // Paper - diff on change
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world.blockUpdated(pos, iblockdata1.getBlock());
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@@ -262,6 +269,13 @@ public class PistonBaseBlock extends DirectionalBlock {
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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))) {
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this.moveBlocks(world, pos, enumdirection, false);
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} else {
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+ // Paper start - fire BlockPistonRetractEvent for sticky pistons retracting nothing (air)
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+ if (type == TRIGGER_CONTRACT && iblockdata2.isAir()) {
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+ if (!new BlockPistonRetractEvent(CraftBlock.at(world, pos), java.util.Collections.emptyList(), CraftBlock.notchToBlockFace(enumdirection)).callEvent()) {
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+ return false;
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+ }
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+ }
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+ // Paper end
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world.removeBlock(pos.relative(enumdirection), false);
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}
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}
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