Paper/patches/server/0544-Fix-invulnerable-end-crystals.patch
Spottedleaf 8c5b837e05 Rework async chunk api implementation
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.

Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.

Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.

Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.

Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-18 23:00:59 -08:00

66 lines
3.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Max Lee <max@themoep.de>
Date: Thu, 27 May 2021 14:52:30 -0700
Subject: [PATCH] Fix invulnerable end crystals
MC-108513
diff --git a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EndCrystal.java b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EndCrystal.java
index 671e8aa7ecc2b3fcc98af62356ff690a2604bcb0..7cb3d69a69e0e3ef4b7f9f9c8b1eb67edb5d116d 100644
--- a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EndCrystal.java
+++ b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EndCrystal.java
@@ -30,6 +30,7 @@ public class EndCrystal extends Entity {
private static final EntityDataAccessor<Optional<BlockPos>> DATA_BEAM_TARGET = SynchedEntityData.defineId(EndCrystal.class, EntityDataSerializers.OPTIONAL_BLOCK_POS);
private static final EntityDataAccessor<Boolean> DATA_SHOW_BOTTOM = SynchedEntityData.defineId(EndCrystal.class, EntityDataSerializers.BOOLEAN);
public int time;
+ public boolean generatedByDragonFight = false; // Paper - Fix invulnerable end crystals
public EndCrystal(EntityType<? extends EndCrystal> type, Level world) {
super(type, world);
@@ -68,6 +69,17 @@ public class EndCrystal extends Entity {
}
// CraftBukkit end
}
+ // Paper start - Fix invulnerable end crystals
+ if (this.level().paperConfig().unsupportedSettings.fixInvulnerableEndCrystalExploit && this.generatedByDragonFight && this.isInvulnerable()) {
+ if (!java.util.Objects.equals(((ServerLevel) this.level()).uuid, this.getOriginWorld())
+ || ((ServerLevel) this.level()).getDragonFight() == null
+ || ((ServerLevel) this.level()).getDragonFight().respawnStage == null
+ || ((ServerLevel) this.level()).getDragonFight().respawnStage.ordinal() > net.minecraft.world.level.dimension.end.DragonRespawnAnimation.SUMMONING_DRAGON.ordinal()) {
+ this.setInvulnerable(false);
+ this.setBeamTarget(null);
+ }
+ }
+ // Paper end - Fix invulnerable end crystals
}
}
@@ -79,6 +91,7 @@ public class EndCrystal extends Entity {
}
nbt.putBoolean("ShowBottom", this.showsBottom());
+ if (this.generatedByDragonFight) nbt.putBoolean("Paper.GeneratedByDragonFight", this.generatedByDragonFight); // Paper - Fix invulnerable end crystals
}
@Override
@@ -87,6 +100,7 @@ public class EndCrystal extends Entity {
if (nbt.contains("ShowBottom", 1)) {
this.setShowBottom(nbt.getBoolean("ShowBottom"));
}
+ if (nbt.contains("Paper.GeneratedByDragonFight", 1)) this.generatedByDragonFight = nbt.getBoolean("Paper.GeneratedByDragonFight"); // Paper - Fix invulnerable end crystals
}
diff --git a/src/main/java/net/minecraft/world/level/levelgen/feature/SpikeFeature.java b/src/main/java/net/minecraft/world/level/levelgen/feature/SpikeFeature.java
index 6f0cd7121bf191d8fd01baf4c9b87df7f4f44564..fe5b2bcfaa243c3089f3df83ec1ae0948a63d1eb 100644
--- a/src/main/java/net/minecraft/world/level/levelgen/feature/SpikeFeature.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/feature/SpikeFeature.java
@@ -115,6 +115,7 @@ public class SpikeFeature extends Feature<SpikeConfiguration> {
endCrystal.moveTo(
(double)spike.getCenterX() + 0.5, (double)(spike.getHeight() + 1), (double)spike.getCenterZ() + 0.5, random.nextFloat() * 360.0F, 0.0F
);
+ endCrystal.generatedByDragonFight = true; // Paper - Fix invulnerable end crystals
world.addFreshEntity(endCrystal);
BlockPos blockPos2 = endCrystal.blockPosition();
this.setBlock(world, blockPos2.below(), Blocks.BEDROCK.defaultBlockState());