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Paper/patches/server/0811-Always-parse-protochunk-light-sources-unless-it-is-m.patch
Spottedleaf 2cf4b82d71 Correctly parse last update for old chunks for regionfile recalc
It's required so that comparisons between two chunks can be
made
2021-12-27 13:35:09 -08:00

54 Zeilen
3.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Mon, 23 Aug 2021 04:50:05 -0700
Subject: [PATCH] Always parse protochunk light sources unless it is marked as
non-lit
Chunks not marked as lit will always go through the light engine,
so they should always have their block sources parsed.
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
index c553c926d147bae370ccd50dca74edc8b19c2f06..8246204ce5d8f825c7796f87006e658d7a019876 100644
--- a/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/ChunkSerializer.java
@@ -310,16 +310,33 @@ public class ChunkSerializer {
BelowZeroRetrogen belowzeroretrogen = protochunk.getBelowZeroRetrogen();
boolean flag2 = chunkstatus.isOrAfter(ChunkStatus.LIGHT) || belowzeroretrogen != null && belowzeroretrogen.targetStatus().isOrAfter(ChunkStatus.LIGHT);
- if (!flag && flag2) {
- Iterator iterator = BlockPos.betweenClosed(chunkPos.getMinBlockX(), world.getMinBuildHeight(), chunkPos.getMinBlockZ(), chunkPos.getMaxBlockX(), world.getMaxBuildHeight() - 1, chunkPos.getMaxBlockZ()).iterator();
+ if (!flag) { // Paper - fix incorrect parsing of blocks that emit light - it should always parse it, unless the chunk is marked as lit
+ // Paper start - let's make sure the implementation isn't as slow as possible
+ int offX = chunkPos.x << 4;
+ int offZ = chunkPos.z << 4;
+
+ int minChunkSection = io.papermc.paper.util.WorldUtil.getMinSection(world);
+ int maxChunkSection = io.papermc.paper.util.WorldUtil.getMaxSection(world);
+
+ LevelChunkSection[] sections = achunksection;
+ for (int sectionY = minChunkSection; sectionY <= maxChunkSection; ++sectionY) {
+ LevelChunkSection section = sections[sectionY - minChunkSection];
+ if (section == null || section.hasOnlyAir()) {
+ // no sources in empty sections
+ continue;
+ }
+ int offY = sectionY << 4;
- while (iterator.hasNext()) {
- BlockPos blockposition = (BlockPos) iterator.next();
+ for (int index = 0; index < (16 * 16 * 16); ++index) {
+ if (section.states.get(index).getLightEmission() <= 0) {
+ continue;
+ }
- if (((ChunkAccess) object).getBlockState(blockposition).getLightEmission() != 0) {
- protochunk.addLight(blockposition);
+ // index = x | (z << 4) | (y << 8)
+ protochunk.addLight(new BlockPos(offX | (index & 15), offY | (index >>> 8), offZ | ((index >>> 4) & 15)));
}
}
+ // Paper end
}
}