54 lines
3.1 KiB
Diff
54 lines
3.1 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: Mon, 23 Aug 2021 04:50:05 -0700
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Subject: [PATCH] Always parse protochunk light sources unless it is marked as
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non-lit
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Chunks not marked as lit will always go through the light engine,
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so they should always have their block sources parsed.
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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index 4df5853781a2ac89dd391374d34d9096643a2ab8..3367c75b1c132b42465d4c355a6b5fd00c3efe23 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
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@@ -331,16 +331,33 @@ public class ChunkSerializer {
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BelowZeroRetrogen belowzeroretrogen = protochunk.getBelowZeroRetrogen();
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boolean flag5 = chunkstatus.isOrAfter(ChunkStatus.LIGHT) || belowzeroretrogen != null && belowzeroretrogen.targetStatus().isOrAfter(ChunkStatus.LIGHT);
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- if (!flag && flag5) {
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- Iterator iterator = BlockPos.betweenClosed(chunkPos.getMinBlockX(), world.getMinBuildHeight(), chunkPos.getMinBlockZ(), chunkPos.getMaxBlockX(), world.getMaxBuildHeight() - 1, chunkPos.getMaxBlockZ()).iterator();
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+ if (!flag) { // Paper - fix incorrect parsing of blocks that emit light - it should always parse it, unless the chunk is marked as lit
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+ // Paper start - let's make sure the implementation isn't as slow as possible
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+ int offX = chunkPos.x << 4;
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+ int offZ = chunkPos.z << 4;
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+
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+ int minChunkSection = io.papermc.paper.util.WorldUtil.getMinSection(world);
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+ int maxChunkSection = io.papermc.paper.util.WorldUtil.getMaxSection(world);
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+
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+ LevelChunkSection[] sections = achunksection;
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+ for (int sectionY = minChunkSection; sectionY <= maxChunkSection; ++sectionY) {
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+ LevelChunkSection section = sections[sectionY - minChunkSection];
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+ if (section == null || section.hasOnlyAir()) {
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+ // no sources in empty sections
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+ continue;
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+ }
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+ int offY = sectionY << 4;
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- while (iterator.hasNext()) {
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- BlockPos blockposition = (BlockPos) iterator.next();
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+ for (int index = 0; index < (16 * 16 * 16); ++index) {
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+ if (section.states.get(index).getLightEmission() <= 0) {
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+ continue;
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+ }
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- if (((ChunkAccess) object1).getBlockState(blockposition).getLightEmission() != 0) {
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- protochunk.addLight(blockposition);
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+ // index = x | (z << 4) | (y << 8)
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+ protochunk.addLight(new BlockPos(offX | (index & 15), offY | (index >>> 8), offZ | ((index >>> 4) & 15)));
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}
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}
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+ // Paper end
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}
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}
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