PaperMC/patches/server/0818-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 29804084c93af884aea92d25b05e9bf20b92b620..d3457d9576dcacb0adbcc1884a407d5b24680563 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -1242,7 +1242,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
     }
 
     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`
Compilation fixes 2024-12-03 22:06:05 +01:00			`index 29804084c93af884aea92d25b05e9bf20b92b620..d3457d9576dcacb0adbcc1884a407d5b24680563 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`
More more more more work 2024-12-03 20:34:55 +01:00			`@@ -1242,7 +1242,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess`
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) {`