From f1f032dbb824e709ee510220e7bcf1ddf2b42554 Mon Sep 17 00:00:00 2001
From: Paul Chote <paul@chote.net>
Date: Fri, 1 Nov 2013 17:42:48 +1300
Subject: [PATCH] Don't crash if trying to check targets outside the map.

---
 OpenRA.Game/GameRules/WeaponInfo.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/OpenRA.Game/GameRules/WeaponInfo.cs b/OpenRA.Game/GameRules/WeaponInfo.cs
index ae67d887e7..37962ee8f4 100644
--- a/OpenRA.Game/GameRules/WeaponInfo.cs
+++ b/OpenRA.Game/GameRules/WeaponInfo.cs
@@ -172,6 +172,9 @@ namespace OpenRA.GameRules
 			if (target.Type == TargetType.Terrain)
 			{
 				var cell = target.CenterPosition.ToCPos();
+				if (!world.Map.IsInMap(cell))
+					return false;
+
 				if (ValidTargets.Contains("Ground") && world.GetTerrainType(cell) != "Water")
 					return true;