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aa52bf9e33
Mojang made some changes to priorities in 1.17 and it seems that these changes conflict with the changes made in this patch, which in some cases appears to cause excessive rescheduling of tasks. This, however, is not confirmed as such but seems to be the behavior that we're seeing to cause this issue, if mojang has adopted the changes we suggested, then a good chunk of this patch may be unneeded, but, this needs a much better look than I'm currently able to do
61 lines
3.6 KiB
Diff
61 lines
3.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: commandblockguy <commandblockguy1@gmail.com>
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Date: Fri, 14 Aug 2020 14:44:14 -0500
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Subject: [PATCH] Prevent headless pistons from being created
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Prevent headless pistons from being created by explosions or tree/mushroom growth.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index b0fe3f0ac4c706c4b64f2778fcb8d6c26e585d3c..e7d54a510303653c5f3c7374e4e83101321840c6 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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@@ -459,6 +459,12 @@ public class PaperConfig {
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set("settings.unsupported-settings.allow-tnt-duplication", null);
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}
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+ public static boolean allowHeadlessPistons;
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+ private static void allowHeadlessPistons() {
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+ config.set("settings.unsupported-settings.allow-headless-pistons-readme", "This setting controls if players should be able to create headless pistons.");
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+ allowHeadlessPistons = getBoolean("settings.unsupported-settings.allow-headless-pistons", false);
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+ }
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+
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public static int playerAutoSaveRate = -1;
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public static int maxPlayerAutoSavePerTick = 10;
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private static void playerAutoSaveRate() {
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diff --git a/src/main/java/net/minecraft/world/level/Explosion.java b/src/main/java/net/minecraft/world/level/Explosion.java
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index 1575fb0bbad6e11f25fb9ce51fd1f15a1b11e0fe..132140e00865fcf84ebe03ffcbc2f30ac11a0b35 100644
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--- a/src/main/java/net/minecraft/world/level/Explosion.java
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+++ b/src/main/java/net/minecraft/world/level/Explosion.java
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@@ -15,6 +15,7 @@ import java.util.Random;
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import java.util.Set;
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import javax.annotation.Nullable;
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import net.minecraft.core.BlockPos;
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+import net.minecraft.core.Direction;
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import net.minecraft.core.Vec3i;
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import net.minecraft.core.particles.ParticleTypes;
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import net.minecraft.server.level.ServerLevel;
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@@ -35,6 +36,8 @@ import net.minecraft.world.level.block.BaseFireBlock;
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import net.minecraft.world.level.block.Block;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.block.entity.BlockEntity;
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+import net.minecraft.world.level.block.piston.PistonHeadBlock;
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+import net.minecraft.world.level.block.piston.PistonMovingBlockEntity;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.gameevent.GameEvent;
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import net.minecraft.world.level.material.FluidState;
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@@ -189,6 +192,15 @@ public class Explosion {
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if (f > 0.0F && this.damageCalculator.shouldBlockExplode(this, this.level, blockposition, iblockdata, f)) {
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set.add(blockposition);
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+ // Paper start - prevent headless pistons from forming
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+ if (!com.destroystokyo.paper.PaperConfig.allowHeadlessPistons && iblockdata.getBlock() == Blocks.MOVING_PISTON) {
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+ BlockEntity extension = this.level.getBlockEntity(blockposition);
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+ if (extension instanceof PistonMovingBlockEntity && ((PistonMovingBlockEntity) extension).isSourcePiston()) {
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+ Direction direction = iblockdata.getValue(PistonHeadBlock.FACING);
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+ set.add(blockposition.relative(direction.getOpposite()));
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+ }
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+ }
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+ // Paper end
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}
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d4 += d0 * 0.30000001192092896D;
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