PaperMC/Spigot-Server-Patches/0197-Prevent-Frosted-Ice-from-loading-holding-chunks.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 10 Mar 2018 16:33:15 -0500
Subject: [PATCH] Prevent Frosted Ice from loading/holding chunks


diff --git a/src/main/java/net/minecraft/server/BlockIceFrost.java b/src/main/java/net/minecraft/server/BlockIceFrost.java
index 061b157f66999a733c3c4e990371b6f8d7860de2..77f5f835c60c181a0a2d6fc782d756338bc2ccb0 100644
--- a/src/main/java/net/minecraft/server/BlockIceFrost.java
+++ b/src/main/java/net/minecraft/server/BlockIceFrost.java
@@ -28,7 +28,8 @@ public class BlockIceFrost extends BlockIce {
                 EnumDirection enumdirection = aenumdirection[j];
 
                 blockposition_mutableblockposition.a((BaseBlockPosition) blockposition, enumdirection);
-                IBlockData iblockdata1 = worldserver.getType(blockposition_mutableblockposition);
+                IBlockData iblockdata1 = worldserver.getTypeIfLoaded(blockposition_mutableblockposition); // Paper
+                if (iblockdata1 == null) { continue; } // Paper
 
                 if (iblockdata1.a((Block) this) && !this.e(iblockdata1, (World) worldserver, blockposition_mutableblockposition)) {
                     worldserver.getBlockTickList().a(blockposition_mutableblockposition, this, MathHelper.nextInt(random, worldserver.paperConfig.frostedIceDelayMin, worldserver.paperConfig.frostedIceDelayMax)); // Paper - use configurable min/max delay
@@ -71,7 +72,9 @@ public class BlockIceFrost extends BlockIce {
             EnumDirection enumdirection = aenumdirection[l];
 
             blockposition_mutableblockposition.a((BaseBlockPosition) blockposition, enumdirection);
-            if (iblockaccess.getType(blockposition_mutableblockposition).a((Block) this)) {
+            // Paper start
+            IBlockData type = iblockaccess.getTypeIfLoaded(blockposition_mutableblockposition);
+            if (type != null && type.a((Block) this)) { // Paper end
                 ++j;
                 if (j >= i) {
                     return false;