PaperMC/patches/server/0998-Only-capture-actual-tree-growth.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 21 Aug 2021 18:53:03 -0700
Subject: [PATCH] Only capture actual tree growth
diff --git a/src/main/java/net/minecraft/world/level/block/grower/AbstractMegaTreeGrower.java b/src/main/java/net/minecraft/world/level/block/grower/AbstractMegaTreeGrower.java
index 3decfca75ae1ace3da8ff47815a47d84c2a86105..b1e4a84bc5351ffe472d8371565665148253ad8f 100644
--- a/src/main/java/net/minecraft/world/level/block/grower/AbstractMegaTreeGrower.java
+++ b/src/main/java/net/minecraft/world/level/block/grower/AbstractMegaTreeGrower.java
@@ -49,17 +49,25 @@ public abstract class AbstractMegaTreeGrower extends AbstractTreeGrower {
ConfiguredFeature<?, ?> worldgenfeatureconfigured = (ConfiguredFeature) holder.value();
BlockState iblockdata1 = Blocks.AIR.defaultBlockState();
+ // Paper start
+ final CaptureState captureState = new CaptureState(world).recordAndSetToFalse();
+ try (captureState) {
+ // Paper end
world.setBlock(pos.offset(x, 0, z), iblockdata1, 4);
world.setBlock(pos.offset(x + 1, 0, z), iblockdata1, 4);
world.setBlock(pos.offset(x, 0, z + 1), iblockdata1, 4);
world.setBlock(pos.offset(x + 1, 0, z + 1), iblockdata1, 4);
+ } // Paper
if (worldgenfeatureconfigured.place(world, chunkGenerator, random, pos.offset(x, 0, z))) {
return true;
} else {
+ captureState.recordAndSetToFalse(); // Paper
+ try (captureState) { // Paper
world.setBlock(pos.offset(x, 0, z), state, 4);
world.setBlock(pos.offset(x + 1, 0, z), state, 4);
world.setBlock(pos.offset(x, 0, z + 1), state, 4);
world.setBlock(pos.offset(x + 1, 0, z + 1), state, 4);
+ } // Paper
return false;
}
}
diff --git a/src/main/java/net/minecraft/world/level/block/grower/AbstractTreeGrower.java b/src/main/java/net/minecraft/world/level/block/grower/AbstractTreeGrower.java
index a743f36f2682a6b72ffa6644782fc081d1479eb7..1478483c0a5e35dfe0865ba5d819822765940dbf 100644
--- a/src/main/java/net/minecraft/world/level/block/grower/AbstractTreeGrower.java
+++ b/src/main/java/net/minecraft/world/level/block/grower/AbstractTreeGrower.java
@@ -41,7 +41,12 @@ public abstract class AbstractTreeGrower {
ConfiguredFeature<?, ?> worldgenfeatureconfigured = (ConfiguredFeature) holder.value();
BlockState iblockdata1 = world.getFluidState(pos).createLegacyBlock();
+ // Paper start - don't capture the change to air for tree blocks
+ final CaptureState captureState = new CaptureState(world).recordAndSetToFalse();
+ try (captureState) {
+ // Paper end
world.setBlock(pos, iblockdata1, 4);
+ } // Paper
if (worldgenfeatureconfigured.place(world, chunkGenerator, random, pos)) {
if (world.getBlockState(pos) == iblockdata1) {
world.sendBlockUpdated(pos, state, iblockdata1, 2);
@@ -49,7 +54,10 @@ public abstract class AbstractTreeGrower {
return true;
} else {
+ captureState.recordAndSetToFalse(); // Paper - don't capture the change to air for tree blocks
+ try (captureState) { // Paper
world.setBlock(pos, state, 4);
+ } // Paper
return false;
}
}
@@ -122,4 +130,29 @@ public abstract class AbstractTreeGrower {
}
}
// CraftBukkit end
+ // Paper start
+ static class CaptureState implements AutoCloseable {
+ private final ServerLevel level;
+ private boolean previousCaptureTreeGeneration;
+ private boolean previousCaptureBlockStates;
+
+ CaptureState(net.minecraft.server.level.ServerLevel level) {
+ this.level = level;
+ }
+
+ CaptureState recordAndSetToFalse() {
+ this.previousCaptureTreeGeneration = this.level.captureTreeGeneration;
+ this.previousCaptureBlockStates = this.level.captureBlockStates;
+ this.level.captureTreeGeneration = false;
+ this.level.captureBlockStates = false;
+ return this;
+ }
+
+ @Override
+ public void close() {
+ this.level.captureTreeGeneration = this.previousCaptureTreeGeneration;
+ this.level.captureBlockStates = this.previousCaptureBlockStates;
+ }
+ }
+ // Paper end
}