From 1d7fc3c3ce80240e99ea57a6c854b515b3880f3a Mon Sep 17 00:00:00 2001
From: Martin Panzer <postremus1996@googlemail.com>
Date: Mon, 23 May 2016 12:12:37 +0200
Subject: [PATCH] Faster redstone torch rapid clock removal

Only resize the the redstone torch list once, since resizing arrays / lists is costly

diff --git a/src/main/java/net/minecraft/server/BlockRedstoneTorch.java b/src/main/java/net/minecraft/server/BlockRedstoneTorch.java
index a99f979ef..a79484e3e 100644
--- a/src/main/java/net/minecraft/server/BlockRedstoneTorch.java
+++ b/src/main/java/net/minecraft/server/BlockRedstoneTorch.java
@@ -68,9 +68,17 @@ public class BlockRedstoneTorch extends BlockTorch {
     public static void a(IBlockData iblockdata, World world, BlockPosition blockposition, Random random, boolean flag) {
         List list = (List) BlockRedstoneTorch.b.get(world);
 
-        while (list != null && !list.isEmpty() && world.getTime() - ((BlockRedstoneTorch.RedstoneUpdateInfo) list.get(0)).b > 60L) {
-            list.remove(0);
+        // Paper start
+        if (list != null) {
+            int index = 0;
+            while (index < list.size() && world.getTime() - ((BlockRedstoneTorch.RedstoneUpdateInfo) list.get(index)).getTime() > 60L) {
+                index++;
+            }
+            if (index > 0) {
+                list.subList(0, index).clear();
+            }
         }
+        // Paper end
 
         // CraftBukkit start
         org.bukkit.plugin.PluginManager manager = world.getServer().getPluginManager();
@@ -167,7 +175,7 @@ public class BlockRedstoneTorch extends BlockTorch {
     public static class RedstoneUpdateInfo {
 
         private final BlockPosition a;
-        private final long b;
+        private final long b; final long getTime() { return this.b; } // Paper - OBFHELPER
 
         public RedstoneUpdateInfo(BlockPosition blockposition, long i) {
             this.a = blockposition;
-- 
2.21.0