From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Paul Sauve <paul@technove.co>
Date: Sun, 1 Nov 2020 16:59:08 -0600
Subject: [PATCH] Swap priority of checks in chunk ticking

World.V showed up a lot in lag spikes for some reason, although I wonder
if it's just Spark getting JVM safe points.

Airplane
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diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index d2b50cdc43c737d9fdfdcd7838de24cbca2017e4..a60fc548982e2ddfabd924ce9026762d23071038 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -1094,7 +1094,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
         gameprofilerfiller.enter("thunder");
         final BlockPosition.MutableBlockPosition blockposition = this.chunkTickMutablePosition; // Paper - use mutable to reduce allocation rate, final to force compile fail on change
 
-        if (!this.paperConfig.disableThunder && flag && this.W() && this.random.nextInt(100000) == 0) { // Paper - Disable thunder
+        if (!this.paperConfig.disableThunder && flag && this.random.nextInt(100000) == 0 && this.W()) { // Paper - Disable thunder // Airplane - check this.W last
             blockposition.setValues(this.a(this.a(j, 0, k, 15))); // Paper
             if (this.isRainingAt(blockposition)) {
                 DifficultyDamageScaler difficultydamagescaler = this.getDamageScaler(blockposition);