From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MrIvanPlays <ivan@mrivanplays.com>
Date: Sun, 9 Aug 2020 16:58:18 -0500
Subject: [PATCH] Optimize some stuff in WorldServer ticking

Replaced some streams and some array lists with glue lists

diff --git a/src/main/java/net/minecraft/server/level/WorldServer.java b/src/main/java/net/minecraft/server/level/WorldServer.java
index 80b08904143b7656aa125a396bbd2866370c8906..e6b9becb87130ee76ccdd087e3c8dee7b18898e4 100644
--- a/src/main/java/net/minecraft/server/level/WorldServer.java
+++ b/src/main/java/net/minecraft/server/level/WorldServer.java
@@ -1007,12 +1007,21 @@ public class WorldServer extends World implements GeneratorAccessSeed {
             this.server.getPlayerList().sendAll(new PacketPlayOutGameStateChange(PacketPlayOutGameStateChange.i, this.thunderLevel));
         }
         // */
-        for (int idx = 0; idx < this.players.size(); ++idx) {
-            if (((EntityPlayer) this.players.get(idx)).world == this) {
-                ((EntityPlayer) this.players.get(idx)).tickWeather();
+        // Yatopia start
+        boolean sleepyMatch = true;
+        for (EntityPlayer player : players) {
+            if (player.world == this) {
+                player.tickWeather();
+                if (flag != this.isRaining()) player.setPlayerWeather((!flag ? WeatherType.DOWNFALL : WeatherType.CLEAR), false);
+                player.updateWeather(this.lastRainLevel, this.rainLevel, this.lastThunderLevel, this.thunderLevel);
+            }
+            if (sleepyMatch && !player.isSpectator() && !player.isDeeplySleeping() && !player.fauxSleeping) {
+                sleepyMatch = false;
             }
+            // Yatopia end
         }
 
+        /* // Yatopia start - moved up
         if (flag != this.isRaining()) {
             // Only send weather packets to those affected
             for (int idx = 0; idx < this.players.size(); ++idx) {
@@ -1027,11 +1036,9 @@ public class WorldServer extends World implements GeneratorAccessSeed {
             }
         }
         // CraftBukkit end
+        */ // Yatopia end
 
-        if (this.purpurConfig.playersSkipNight && this.everyoneSleeping && this.players.stream().noneMatch((entityplayer) -> { // Purpur
-            return !entityplayer.isSpectator() && !entityplayer.isDeeplySleeping() && !entityplayer.fauxSleeping && !(purpurConfig.idleTimeoutCountAsSleeping && entityplayer.isAfk()); // CraftBukkit // Purpur
-        })) {
-            // CraftBukkit start
+        if (this.purpurConfig.playersSkipNight && this.everyoneSleeping && sleepyMatch) { // Purpur // Yatopia
             long l = this.worldData.getDayTime() + 24000L;
             TimeSkipEvent event = new TimeSkipEvent(this.getWorld(), TimeSkipEvent.SkipReason.NIGHT_SKIP, (l - l % 24000L) - this.getDayTime());
             if (this.getGameRules().getBoolean(GameRules.DO_DAYLIGHT_CYCLE)) {
@@ -1237,9 +1244,9 @@ public class WorldServer extends World implements GeneratorAccessSeed {
     }
 
     private void wakeupPlayers() {
-        (this.players.stream().filter(EntityLiving::isSleeping).collect(Collectors.toList())).forEach((entityplayer) -> { // CraftBukkit - decompile error
+        for (EntityPlayer entityplayer : players) { if (entityplayer.isSleeping()) { // Yatopia
             entityplayer.wakeup(false, false);
-        });
+        }} // Yatopia
     }
 
     // Paper start - optimise random block ticking
@@ -2069,8 +2076,9 @@ public class WorldServer extends World implements GeneratorAccessSeed {
         // Spigot start
         if ( entity instanceof EntityHuman )
         {
-            this.getMinecraftServer().worldServer.values().stream().map( WorldServer::getWorldPersistentData ).forEach( (worldData) ->
+            for ( WorldServer worldServer : getMinecraftServer().worldServer.values() ) // Yatopia
             {
+                WorldPersistentData worldData = worldServer.getWorldPersistentData(); // Yatopia
                 for (Object o : worldData.data.values() )
                 {
                     if ( o instanceof WorldMap )
@@ -2087,7 +2095,7 @@ public class WorldServer extends World implements GeneratorAccessSeed {
                         }
                     }
                 }
-            } );
+            } // Yatopia
         }
         // Spigot end
         // Spigot Start