59 lines
3.0 KiB
Diff
59 lines
3.0 KiB
Diff
|
From bfe4057567647862f7f8c377acc4bff3788e42d5 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Aikar <aikar@aikar.co>
|
||
|
|
Date: Fri, 28 Sep 2018 20:46:29 -0400
|
||
|
|
Subject: [PATCH] Optimize Light Recalculations
|
||
|
|
|
||
|
|
The server triggers light recalculations even if the new block
|
||
|
|
is the same as the old block. At this time, BlockData Properties
|
||
|
|
do not impact light calculations.
|
||
|
|
|
||
|
|
So the only way light should change, is if the block itself
|
||
|
|
changes from 1 block to another.
|
||
|
|
|
||
|
|
Additionally, as of 1.13, water now only blocks 1 light level
|
||
|
|
instead of 3, meaning that light level decreasing is the same as air.
|
||
|
|
|
||
|
|
This means, transitions between water and air also do not need
|
||
|
|
to recalculate light, which saves a TON of updates caused by
|
||
|
|
fluids flowing.
|
||
|
|
|
||
|
|
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
|
||
|
|
index 53aab97866..dad294ecbe 100644
|
||
|
|
--- a/src/main/java/net/minecraft/server/Chunk.java
|
||
|
|
+++ b/src/main/java/net/minecraft/server/Chunk.java
|
||
|
|
@@ -103,6 +103,9 @@ public class Chunk implements IChunkAccess {
|
||
|
|
// Keep this synced with entitySlices.add() and entitySlices.remove()
|
||
|
|
private final int[] itemCounts = new int[16];
|
||
|
|
private final int[] inventoryEntityCounts = new int[16];
|
||
|
|
+ public static boolean shouldRecheckLight(Block block, Block block1) {
|
||
|
|
+ return !(block == block1 || (block1 == Blocks.WATER && block == Blocks.AIR) || (block == Blocks.WATER && block1 == Blocks.AIR));
|
||
|
|
+ }
|
||
|
|
// Paper end
|
||
|
|
public boolean areNeighborsLoaded(final int radius) {
|
||
|
|
switch (radius) {
|
||
|
|
@@ -578,7 +581,7 @@ public class Chunk implements IChunkAccess {
|
||
|
|
} else {
|
||
|
|
if (flag1) {
|
||
|
|
this.initLighting();
|
||
|
|
- } else {
|
||
|
|
+ } else if (shouldRecheckLight(block, block1)) { // Paper - Optimize light recalculations
|
||
|
|
this.runOrQueueLightUpdate(() -> { // Paper - Queue light update
|
||
|
|
int i1 = iblockdata.b(this.world, blockposition);
|
||
|
|
int j1 = iblockdata1.b(this.world, blockposition);
|
||
|
|
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
|
||
|
|
index 13f69f1b82..cd25bf3d9e 100644
|
||
|
|
--- a/src/main/java/net/minecraft/server/World.java
|
||
|
|
+++ b/src/main/java/net/minecraft/server/World.java
|
||
|
|
@@ -444,7 +444,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
|
||
|
|
} else {
|
||
|
|
IBlockData iblockdata2 = this.getType(blockposition);
|
||
|
|
|
||
|
|
- if (iblockdata2.b(this, blockposition) != iblockdata1.b(this, blockposition) || iblockdata2.e() != iblockdata1.e()) {
|
||
|
|
+ if (Chunk.shouldRecheckLight(iblockdata.getBlock(), iblockdata2.getBlock()) && iblockdata2.b(this, blockposition) != iblockdata1.b(this, blockposition) || iblockdata2.e() != iblockdata1.e()) { // Paper - optimize light recalculations
|
||
|
|
this.methodProfiler.a("checkLight");
|
||
|
|
chunk.runOrQueueLightUpdate(() -> this.r(blockposition)); // Paper - Queue light update
|
||
|
|
this.methodProfiler.e();
|
||
|
|
--
|
||
|
|
2.19.0
|
||
|
|
|