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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.
79 lines
5.5 KiB
Diff
79 lines
5.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: lukas81298 <lukas81298@gommehd.net>
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Date: Fri, 22 Jan 2021 21:50:18 +0100
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Subject: [PATCH] optimize dirt and snow spreading
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Feature patch
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diff --git a/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java b/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java
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index b4b826c53548bcf6952f6d0ee8037975ceb8c6e1..a94c164fbf8fc3bb7669799a53f7e5528d921e7c 100644
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--- a/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java
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+++ b/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java
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@@ -18,8 +18,13 @@ public abstract class SpreadingSnowyDirtBlock extends SnowyDirtBlock {
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}
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private static boolean canBeGrass(BlockState state, LevelReader world, BlockPos pos) {
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+ // Paper start - Perf: optimize dirt and snow spreading
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+ return canBeGrass(world.getChunk(pos), state, world, pos);
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+ }
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+ private static boolean canBeGrass(net.minecraft.world.level.chunk.ChunkAccess chunk, BlockState state, LevelReader world, BlockPos pos) {
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+ // Paper end - Perf: optimize dirt and snow spreading
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BlockPos blockposition1 = pos.above();
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- BlockState iblockdata1 = world.getBlockState(blockposition1);
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+ BlockState iblockdata1 = chunk.getBlockState(blockposition1); // Paper - Perf: optimize dirt and snow spreading
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if (iblockdata1.is(Blocks.SNOW) && (Integer) iblockdata1.getValue(SnowLayerBlock.LAYERS) == 1) {
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return true;
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@@ -36,15 +41,27 @@ public abstract class SpreadingSnowyDirtBlock extends SnowyDirtBlock {
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protected abstract MapCodec<? extends SpreadingSnowyDirtBlock> codec();
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private static boolean canPropagate(BlockState state, LevelReader world, BlockPos pos) {
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+ // Paper start - Perf: optimize dirt and snow spreading
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+ return canPropagate(world.getChunk(pos), state, world, pos);
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+ }
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+
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+ private static boolean canPropagate(net.minecraft.world.level.chunk.ChunkAccess chunk, BlockState state, LevelReader world, BlockPos pos) {
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+ // Paper end - Perf: optimize dirt and snow spreading
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BlockPos blockposition1 = pos.above();
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- return SpreadingSnowyDirtBlock.canBeGrass(state, world, pos) && !world.getFluidState(blockposition1).is(FluidTags.WATER);
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+ return SpreadingSnowyDirtBlock.canBeGrass(chunk, state, world, pos) && !chunk.getFluidState(blockposition1).is(FluidTags.WATER); // Paper - Perf: optimize dirt and snow spreading
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}
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@Override
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protected void randomTick(BlockState state, ServerLevel world, BlockPos pos, RandomSource random) {
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if (this instanceof GrassBlock && world.paperConfig().tickRates.grassSpread != 1 && (world.paperConfig().tickRates.grassSpread < 1 || (net.minecraft.server.MinecraftServer.currentTick + pos.hashCode()) % world.paperConfig().tickRates.grassSpread != 0)) { return; } // Paper - Configurable random tick rates for blocks
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- if (!SpreadingSnowyDirtBlock.canBeGrass(state, world, pos)) {
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+ // Paper start - Perf: optimize dirt and snow spreading
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+ final net.minecraft.world.level.chunk.ChunkAccess cachedBlockChunk = world.getChunkIfLoaded(pos);
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+ if (cachedBlockChunk == null) { // Is this needed?
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+ return;
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+ }
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+ if (!SpreadingSnowyDirtBlock.canBeGrass(cachedBlockChunk, state, world, pos)) {
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+ // Paper end - Perf: optimize dirt and snow spreading
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// CraftBukkit start
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if (org.bukkit.craftbukkit.event.CraftEventFactory.callBlockFadeEvent(world, pos, Blocks.DIRT.defaultBlockState()).isCancelled()) {
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return;
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@@ -57,9 +74,19 @@ public abstract class SpreadingSnowyDirtBlock extends SnowyDirtBlock {
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for (int i = 0; i < 4; ++i) {
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BlockPos blockposition1 = pos.offset(random.nextInt(3) - 1, random.nextInt(5) - 3, random.nextInt(3) - 1);
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-
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- if (world.getBlockState(blockposition1).is(Blocks.DIRT) && SpreadingSnowyDirtBlock.canPropagate(iblockdata1, world, blockposition1)) {
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- org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockSpreadEvent(world, pos, blockposition1, (BlockState) iblockdata1.setValue(SpreadingSnowyDirtBlock.SNOWY, world.getBlockState(blockposition1.above()).is(Blocks.SNOW))); // CraftBukkit
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+ // Paper start - Perf: optimize dirt and snow spreading
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+ if (pos.getX() == blockposition1.getX() && pos.getY() == blockposition1.getY() && pos.getZ() == blockposition1.getZ()) {
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+ continue;
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+ }
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+ net.minecraft.world.level.chunk.ChunkAccess access;
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+ if (cachedBlockChunk.locX == blockposition1.getX() >> 4 && cachedBlockChunk.locZ == blockposition1.getZ() >> 4) {
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+ access = cachedBlockChunk;
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+ } else {
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+ access = world.getChunkAt(blockposition1);
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+ }
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+ if (access.getBlockState(blockposition1).is(Blocks.DIRT) && SpreadingSnowyDirtBlock.canPropagate(access, iblockdata1, world, blockposition1)) {
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+ org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockSpreadEvent(world, pos, blockposition1, (BlockState) iblockdata1.setValue(SpreadingSnowyDirtBlock.SNOWY, access.getBlockState(blockposition1.above()).is(Blocks.SNOW))); // CraftBukkit
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+ // Paper end - Perf: optimize dirt and snow spreading
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}
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}
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}
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