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Paper/patches/server/0671-Implement-getComputedBiome-API.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

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Mon, 14 Mar 2022 22:46:05 -0700
Subject: [PATCH] Implement getComputedBiome API
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
index ca35e93239eea09b3d0dc6ef18f58743e633996b..a7748f4b7c5a1630937c702b3fd5fded93793d64 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
@@ -77,6 +77,13 @@ public abstract class CraftRegionAccessor implements RegionAccessor {
return CraftBiome.minecraftHolderToBukkit(this.getHandle().getNoiseBiome(x >> 2, y >> 2, z >> 2));
}
+ // Paper start
+ @Override
+ public Biome getComputedBiome(int x, int y, int z) {
+ return CraftBiome.minecraftHolderToBukkit(this.getHandle().getBiome(new BlockPos(x, y, z)));
+ }
+ // Paper end
+
@Override
public void setBiome(Location location, Biome biome) {
this.setBiome(location.getBlockX(), location.getBlockY(), location.getBlockZ(), biome);
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
index d5b495b5a3ca7f4411d1a700f7149042a16509f1..68fcec085334383808b2117a49220f4d8239220b 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -340,6 +340,13 @@ public class CraftBlock implements Block {
return this.getWorld().getBiome(this.getX(), this.getY(), this.getZ());
}
+ // Paper start
+ @Override
+ public Biome getComputedBiome() {
+ return this.getWorld().getComputedBiome(this.getX(), this.getY(), this.getZ());
+ }
+ // Paper end
+
@Override
public void setBiome(Biome bio) {
this.getWorld().setBiome(this.getX(), this.getY(), this.getZ(), bio);
diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java b/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
index 2c7b64bd7071cb803a042152d497982d753e0b5d..a23269e3bdb83f85a1d08d5f7b54742025223ada 100644
--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
@@ -166,6 +166,14 @@ public class CraftLimitedRegion extends CraftRegionAccessor implements LimitedRe
return super.getBiome(x, y, z);
}
+ // Paper start
+ @Override
+ public Biome getComputedBiome(int x, int y, int z) {
+ Preconditions.checkArgument(this.isInRegion(x, y, z), "Coordinates %s, %s, %s are not in the region", x, y, z);
+ return super.getComputedBiome(x, y, z);
+ }
+ // Paper end
+
@Override
public void setBiome(int x, int y, int z, Holder<net.minecraft.world.level.biome.Biome> biomeBase) {
Preconditions.checkArgument(this.isInRegion(x, y, z), "Coordinates %s, %s, %s are not in the region", x, y, z);