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53 lines
2.9 KiB
Diff
53 lines
2.9 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 ad4081efec9c7eaf315ddb660f813f6ef3cfbb5b..7921ee2786d0d6a60d43786b20efc03a0f9178e3 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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@@ -267,16 +267,33 @@ public class ChunkSerializer {
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protochunk.setLightEngine(lightengine);
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}
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- if (!flag && protochunk.getStatus().isOrAfter(ChunkStatus.LIGHT)) {
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- Iterator iterator = BlockPos.betweenClosed(pos.getMinBlockX(), world.getMinBuildHeight(), pos.getMinBlockZ(), pos.getMaxBlockX(), world.getMaxBuildHeight() - 1, pos.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 = pos.x << 4;
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+ int offZ = pos.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.isEmpty()) {
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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) object).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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