PaperMC/patches/server/0960-Don-t-load-chunks-for-supporting-block-checks.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Wed, 5 Jul 2023 23:11:53 +0100
Subject: [PATCH] Don't load chunks for supporting block checks


diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 1970fa01a6c93f52bbea4874db304c295b3173ba..b28ee70aa98d6a8f3913e11084d0b4a9b09b5e26 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -1356,7 +1356,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
     }
 
     protected BlockPos getOnPos(float offset) {
-        if (this.mainSupportingBlockPos.isPresent()) {
+        if (this.mainSupportingBlockPos.isPresent() && this.level().getChunkIfLoadedImmediately(this.mainSupportingBlockPos.get()) != null) { // Paper - ensure no loads
             BlockPos blockposition = (BlockPos) this.mainSupportingBlockPos.get();
 
             if (offset <= 1.0E-5F) {
Don't allow for supporting block checks to load chunks I cannot test this due to lack of hardware (took 30 minutes getting paper updated and loaded into IJ on this machine...), however, this is the easiest patch for now. Ideally, some form of distance check would probably be added to improve invalidation of this cache. 2023-07-06 00:13:30 +02:00			`From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001`
			`From: Shane Freeder <theboyetronic@gmail.com>`
			`Date: Wed, 5 Jul 2023 23:11:53 +0100`
			`Subject: [PATCH] Don't load chunks for supporting block checks`


			`diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java`
Fix a bunch of stuff with player spawn locations (#9887) If a playerdata doesn't contain a valid, loaded world, reset to the main world spawn point 2023-11-04 22:11:55 +01:00			`index 1970fa01a6c93f52bbea4874db304c295b3173ba..b28ee70aa98d6a8f3913e11084d0b4a9b09b5e26 100644`
Don't allow for supporting block checks to load chunks I cannot test this due to lack of hardware (took 30 minutes getting paper updated and loaded into IJ on this machine...), however, this is the easiest patch for now. Ideally, some form of distance check would probably be added to improve invalidation of this cache. 2023-07-06 00:13:30 +02:00			`--- a/src/main/java/net/minecraft/world/entity/Entity.java`
			`+++ b/src/main/java/net/minecraft/world/entity/Entity.java`
Readd 0414 use distance map to optimise entity tracker (#9868) 2023-11-03 15:05:57 +01:00			`@@ -1356,7 +1356,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {`
Don't allow for supporting block checks to load chunks I cannot test this due to lack of hardware (took 30 minutes getting paper updated and loaded into IJ on this machine...), however, this is the easiest patch for now. Ideally, some form of distance check would probably be added to improve invalidation of this cache. 2023-07-06 00:13:30 +02:00			`}`

			`protected BlockPos getOnPos(float offset) {`
			`- if (this.mainSupportingBlockPos.isPresent()) {`
			`+ if (this.mainSupportingBlockPos.isPresent() && this.level().getChunkIfLoadedImmediately(this.mainSupportingBlockPos.get()) != null) { // Paper - ensure no loads`
			`BlockPos blockposition = (BlockPos) this.mainSupportingBlockPos.get();`

			`if (offset <= 1.0E-5F) {`