papermc/Spigot-Server-Patches/0110-Do-not-load-chunks-for-light-checks.patch

From 3d03fc9bd125d878d67e631adaefac99cae57060 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 31 Mar 2016 19:17:58 -0400
Subject: [PATCH] Do not load chunks for light checks

Should only happen for blocks on the edge that uses neighbors light level
(certain blocks). In that case, there will be 3-4 other neighbors to get a light level from.

diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index a494569..1dc8af1 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -707,6 +707,7 @@ public abstract class World implements IBlockAccess {
                 if (blockposition.getY() >= 256) {
                     blockposition = new BlockPosition(blockposition.getX(), 255, blockposition.getZ());
                 }
+                if (!this.isLoaded(blockposition)) return 0; // Paper
 
                 Chunk chunk = this.getChunkAtWorldCoords(blockposition);
 
-- 
2.9.3
Remove changes to lava/water cobblestone gen Unintended side effects in recent versions, this patch has likely outlived its usefulness. Closes GH-452 2016-10-21 21:08:34 +00:00			`From 3d03fc9bd125d878d67e631adaefac99cae57060 Mon Sep 17 00:00:00 2001`
Do not load chunks for light checks Should only happen for blocks on the edge that uses neighbors light level (certain blocks). In that case, there will be 3-4 other neighbors to get a light level from. 2016-03-31 23:29:06 +00:00			`From: Aikar <aikar@aikar.co>`
			`Date: Thu, 31 Mar 2016 19:17:58 -0400`
			`Subject: [PATCH] Do not load chunks for light checks`

			`Should only happen for blocks on the edge that uses neighbors light level`
			`(certain blocks). In that case, there will be 3-4 other neighbors to get a light level from.`

			`diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java`
Remove use-hopper-check functionality that we restored Our improved hopper checking system should provide a better benefit without as many vanilla behavior issues. 2016-07-17 01:10:43 +00:00			`index a494569..1dc8af1 100644`
Do not load chunks for light checks Should only happen for blocks on the edge that uses neighbors light level (certain blocks). In that case, there will be 3-4 other neighbors to get a light level from. 2016-03-31 23:29:06 +00:00			`--- a/src/main/java/net/minecraft/server/World.java`
			`+++ b/src/main/java/net/minecraft/server/World.java`
Refactor Lighting Queue System may help #284 Cleans up the lighting queue system, reducing diff and improving implementation. We no longer stop chunk unloads due to lighting updates, and instead simply flush the lighting queue. The cost of forcing the chunk (and its neighbors!) to stay loaded waiting for its lighting work to finish is much greater than simply taking the hit and doing the work. This change also helps reduce the diff and avoid bugs with missed diffs by removing duplicated logic. Also switches to a more effecient data structure (ArrayDeque instead of LinkedList) for the queue itself. 2016-05-15 22:48:39 +00:00			`@@ -707,6 +707,7 @@ public abstract class World implements IBlockAccess {`
Do not load chunks for light checks Should only happen for blocks on the edge that uses neighbors light level (certain blocks). In that case, there will be 3-4 other neighbors to get a light level from. 2016-03-31 23:29:06 +00:00			`if (blockposition.getY() >= 256) {`
			`blockposition = new BlockPosition(blockposition.getX(), 255, blockposition.getZ());`
			`}`
			`+ if (!this.isLoaded(blockposition)) return 0; // Paper`

			`Chunk chunk = this.getChunkAtWorldCoords(blockposition);`

			`--`
Remove changes to lava/water cobblestone gen Unintended side effects in recent versions, this patch has likely outlived its usefulness. Closes GH-452 2016-10-21 21:08:34 +00:00			`2.9.3`
Do not load chunks for light checks Should only happen for blocks on the edge that uses neighbors light level (certain blocks). In that case, there will be 3-4 other neighbors to get a light level from. 2016-03-31 23:29:06 +00:00