4d40e87b33
Had to drop some hunks modifying getEntities, as those methods were rewritten by Mojang in 1.17
74 lines
4.7 KiB
Diff
74 lines
4.7 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, 10 May 2021 15:46:57 -0700
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Subject: [PATCH] Fix incorrect status dataconverter for pre 1.13 chunks
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Vanilla was setting non-populated OR non-lit chunks to empty, but
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really this is just completely wrong. It should be set to "carved"
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at minmum, because pre 1.13 chunks went through 3 distinct stages
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of generation: carving, population, and lighting - in this order.
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There is no "empty" status, because a chunk was simply carved
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or it didn't exist. So mapping any chunk data to empty is simply
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invalid.
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If the chunk is terrain populated, then obviously it must be at
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minmum "decorated." If the chunk is lit and populated, then it is marked
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"mobs_spawned" (which is what Vanilla is doing, and this is the last
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stage before moving to full so it looks correct).
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So now here is a table representing the new status conversion:
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Chunk is lit Chunk is populated Vanilla
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F F empty
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T F empty
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F T empty
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T T mobs_spawned
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Chunk is lit Chunk is populated Paper
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F F carved
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T F carved
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F T decorated
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T T mobs_spawned
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This should fix some problems converting old data, as the
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changes here are going to prevent the chunk from being regenerated
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incorrectly.
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SPOTTEDLEAF!!!!!!!!!!!
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diff --git a/src/main/java/net/minecraft/util/datafix/fixes/ChunkToProtochunkFix.java b/src/main/java/net/minecraft/util/datafix/fixes/ChunkToProtochunkFix.java
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index 081bcae48ae34d8354635ea57952f09f14f7fa7a..a4305f58f793e1577de5e13132381ce81304cae4 100644
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--- a/src/main/java/net/minecraft/util/datafix/fixes/ChunkToProtochunkFix.java
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+++ b/src/main/java/net/minecraft/util/datafix/fixes/ChunkToProtochunkFix.java
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@@ -36,17 +36,26 @@ public class ChunkToProtochunkFix extends DataFix {
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OpticFinder<?> opticFinder2 = DSL.fieldFinder("TileTicks", type5);
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return TypeRewriteRule.seq(this.fixTypeEverywhereTyped("ChunkToProtoChunkFix", type, this.getOutputSchema().getType(References.CHUNK), (typed) -> {
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return typed.updateTyped(opticFinder, type4, (typedx) -> {
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- Optional<? extends Stream<? extends Dynamic<?>>> optional = typedx.getOptionalTyped(opticFinder2).flatMap((typed) -> {
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- return typed.write().result();
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+ Optional<? extends Stream<? extends Dynamic<?>>> optional = typedx.getOptionalTyped(opticFinder2).flatMap((it) -> { // Paper - remap fix
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+ return it.write().result(); // Paper - remap fix
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}).flatMap((dynamicx) -> {
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return dynamicx.asStreamOpt().result();
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});
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Dynamic<?> dynamic = typedx.get(DSL.remainderFinder());
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- boolean bl = dynamic.get("TerrainPopulated").asBoolean(false) && (!dynamic.get("LightPopulated").asNumber().result().isPresent() || dynamic.get("LightPopulated").asBoolean(false));
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- dynamic = dynamic.set("Status", dynamic.createString(bl ? "mobs_spawned" : "empty"));
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+ // Paper start - fix incorrect status conversion
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+ // Vanilla is setting chunks to incorrect status here, they should be using at minimum carved.
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+ // for populated chunks, it should be at minimum decorated
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+ // and for lit and populated, mobs_spawned is correct (technically mobs_spawned should be for populated,
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+ // but if it's not lit then it can't be set above lit)
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+ final boolean terrainPopulated = dynamic.get("TerrainPopulated").asBoolean(false);
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+ final boolean lightPopulated = dynamic.get("LightPopulated").asBoolean(false) || dynamic.get("LightPopulated").asNumber().result().isPresent();
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+ final String newStatus = !terrainPopulated ? "carved" : (lightPopulated ? "mobs_spawned" : "decorated");
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+
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+ dynamic = dynamic.set("Status", dynamic.createString(newStatus));
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+ // Paper end - fix incorrect status conversion
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dynamic = dynamic.set("hasLegacyStructureData", dynamic.createBoolean(true));
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Dynamic<?> dynamic3;
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- if (bl) {
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+ if (true) { // Paper - fix incorrect status conversion
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Optional<ByteBuffer> optional2 = dynamic.get("Biomes").asByteBufferOpt().result();
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if (optional2.isPresent()) {
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ByteBuffer byteBuffer = optional2.get();
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