From 200ea6254c28b73d419001ea1be7d2d4d1d1ee88 Mon Sep 17 00:00:00 2001
From: Tiger Wang <ziwei.tiger@hotmail.co.uk>
Date: Fri, 18 Apr 2014 12:54:17 +0100
Subject: Fixed #904

---
 src/World.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/World.cpp')

diff --git a/src/World.cpp b/src/World.cpp
index c23e255f8..800bdde0e 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -1691,6 +1691,11 @@ int cWorld::SpawnFallingBlock(int a_X, int a_Y, int a_Z, BLOCKTYPE BlockType, NI
 
 int cWorld::SpawnExperienceOrb(double a_X, double a_Y, double a_Z, int a_Reward)
 {
+	if (a_Reward < 1)
+	{
+		return -1;
+	}
+
 	cExpOrb * ExpOrb = new cExpOrb(a_X, a_Y, a_Z, a_Reward);
 	ExpOrb->Initialize(this);
 	return ExpOrb->GetUniqueID();
-- 
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