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8c5b837e05
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.
52 lines
2.1 KiB
Diff
52 lines
2.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Thu, 10 Jun 2021 14:36:00 -0700
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Subject: [PATCH] Optimise BlockSoil nearby water lookup
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Apparently the abstract block iteration was taking about
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75% of the method call.
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diff --git a/src/main/java/net/minecraft/world/level/block/FarmBlock.java b/src/main/java/net/minecraft/world/level/block/FarmBlock.java
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index a87f8345aa5520a867a8dd769b43526b20b8c16a..c3dba0c2c94f3804338f86621dc42405e380a6b3 100644
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--- a/src/main/java/net/minecraft/world/level/block/FarmBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/FarmBlock.java
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@@ -154,19 +154,28 @@ public class FarmBlock extends Block {
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}
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private static boolean isNearWater(LevelReader world, BlockPos pos) {
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- Iterator iterator = BlockPos.betweenClosed(pos.offset(-4, 0, -4), pos.offset(4, 1, 4)).iterator();
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-
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- BlockPos blockposition1;
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-
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- do {
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- if (!iterator.hasNext()) {
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- return false;
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+ // Paper start - Perf: remove abstract block iteration
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+ int xOff = pos.getX();
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+ int yOff = pos.getY();
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+ int zOff = pos.getZ();
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+
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+ for (int dz = -4; dz <= 4; ++dz) {
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+ int z = dz + zOff;
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+ for (int dx = -4; dx <= 4; ++dx) {
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+ int x = xOff + dx;
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+ for (int dy = 0; dy <= 1; ++dy) {
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+ int y = dy + yOff;
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+ net.minecraft.world.level.chunk.LevelChunk chunk = (net.minecraft.world.level.chunk.LevelChunk)world.getChunk(x >> 4, z >> 4);
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+ net.minecraft.world.level.material.FluidState fluid = chunk.getBlockStateFinal(x, y, z).getFluidState();
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+ if (fluid.is(FluidTags.WATER)) {
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+ return true;
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+ }
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+ }
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}
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+ }
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- blockposition1 = (BlockPos) iterator.next();
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- } while (!world.getFluidState(blockposition1).is(FluidTags.WATER));
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-
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- return true;
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+ return false;
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+ // Paper end - Perf: remove abstract block iteration
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}
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@Override
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