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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.
56 lines
2.6 KiB
Diff
56 lines
2.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: dfsek <dfsek@protonmail.com>
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Date: Sat, 19 Jun 2021 20:15:59 -0700
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Subject: [PATCH] Add more LimitedRegion API
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diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java b/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
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index ca250dba422f8092b99f72b322147061a7541d14..2c7b64bd7071cb803a042152d497982d753e0b5d 100644
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--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
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+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftLimitedRegion.java
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@@ -255,4 +255,45 @@ public class CraftLimitedRegion extends CraftRegionAccessor implements LimitedRe
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public void addEntityWithPassengers(net.minecraft.world.entity.Entity entity, CreatureSpawnEvent.SpawnReason reason) {
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this.entities.add(entity);
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}
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+
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+ // Paper start - Add more LimitedRegion API
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+ @Override
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+ public void setBlockState(int x, int y, int z, BlockState state) {
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+ BlockPos pos = new BlockPos(x, y, z);
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+ if (!state.getBlockData().matches(getHandle().getBlockState(pos).createCraftBlockData())) {
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+ throw new IllegalArgumentException("BlockData does not match! Expected " + state.getBlockData().getAsString(false) + ", got " + getHandle().getBlockState(pos).createCraftBlockData().getAsString(false));
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+ }
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+ getHandle().getBlockEntity(pos).loadWithComponents(((org.bukkit.craftbukkit.block.CraftBlockEntityState<?>) state).getSnapshotNBT(), this.getHandle().registryAccess());
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+ }
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+
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+ @Override
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+ public void scheduleBlockUpdate(int x, int y, int z) {
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+ BlockPos position = new BlockPos(x, y, z);
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+ getHandle().scheduleTick(position, getHandle().getBlockState(position).getBlock(), 0);
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+ }
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+
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+ @Override
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+ public void scheduleFluidUpdate(int x, int y, int z) {
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+ BlockPos position = new BlockPos(x, y, z);
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+ getHandle().scheduleTick(position, getHandle().getFluidState(position).getType(), 0);
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+ }
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+
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+ @Override
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+ public World getWorld() {
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+ // reading/writing the returned Minecraft world causes a deadlock.
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+ // By implementing this, and covering it in warnings, we're assuming people won't be stupid, and
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+ // if they are stupid, they'll figure it out pretty fast.
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+ return getHandle().getMinecraftWorld().getWorld();
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+ }
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+
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+ @Override
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+ public int getCenterChunkX() {
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+ return centerChunkX;
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+ }
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+
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+ @Override
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+ public int getCenterChunkZ() {
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+ return centerChunkZ;
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+ }
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+ // Paper end - Add more LimitedRegion API
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}
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