From 7acdb0dd3fe1bf6563a0d2e22a7e83e5cb4c9d21 Mon Sep 17 00:00:00 2001
From: "beN39sGroup (Blue Electric)" <beN39sGroup@gmail.com>
Date: Sun, 17 Nov 2013 09:39:40 +0900
Subject: [PATCH] Fix Performance Problem

Welcome, TPS!
---
 src/material/block/liquid/Water.php |  2 +-
 src/pmf/Level.php                   | 11 +++++++----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/material/block/liquid/Water.php b/src/material/block/liquid/Water.php
index 751420358..8aa36470c 100644
--- a/src/material/block/liquid/Water.php
+++ b/src/material/block/liquid/Water.php
@@ -121,7 +121,7 @@ class WaterBlock extends LiquidBlock{
 						$b = $this->getSide($side);
 						if($b instanceof WaterBlock)
 						{
-							if( $this->getSourceCount() >= 2)
+							if( $this->getSourceCount() >= 2 && $level != 0x00)
 							{
 								$this->level->setBlock($this, new WaterBlock(0), false, false, true);
 							}
diff --git a/src/pmf/Level.php b/src/pmf/Level.php
index 73091db12..56f035fcc 100644
--- a/src/pmf/Level.php
+++ b/src/pmf/Level.php
@@ -469,11 +469,14 @@ class PMFLevel extends PMF{
 				++$this->chunkChange[$index][$Y];
 			}
 			$this->chunkChange[$index][-1] = true;
-			$pos = new Position($x, $y, $z, $this->level);
-			for($side = 0; $side <= 5; ++$side)
+			if($old_b instanceof LiquidBlock)
 			{
-				$b = $pos->getSide($side);
-				ServerAPI::request()->api->block->scheduleBlockUpdate(new Position($b, 0, 0, $this->level), 10, BLOCK_UPDATE_NORMAL);
+				$pos = new Position($x, $y, $z, $this->level);
+				for($side = 0; $side <= 5; ++$side)
+				{
+					$b = $pos->getSide($side);
+					ServerAPI::request()->api->block->scheduleBlockUpdate(new Position($b, 0, 0, $this->level), 10, BLOCK_UPDATE_NORMAL);
+				}
 			}
 			return true;
 		}