Fix crash bug in trackCloseContacts functionality

git-svn-id: http://svn.berlios.de/svnroot/repos/oolite-linux/trunk@5576 127b21dd-08f5-0310-b4b7-95ae10353056

Resources/Config/logcontrol.plist

@@ -47,6 +47,7 @@
 	
 	
 	exception								= yes;
+	exception.backtrace     = no;
 	
 	
 	files.notFound							= $error;				// Failure to load a file.

src/Core/Entities/ShipEntity.m

@@ -1965,7 +1965,11 @@ ShipEntity* doOctreesCollide(ShipEntity* prime, ShipEntity* other)
 			// in checkCloseCollisionWith: we check if some thing has come within touch range (origin within our collision_radius)
 			// here we check if it has gone outside that range
 			NSString *other_key = nil;
-			foreachkey (other_key, closeContactsInfo)
+
+			// create a temp copy to iterate over, since we may want to
+			// change the original
+			NSDictionary *closeContactsTemp = [[NSDictionary alloc] initWithDictionary:closeContactsInfo];
+			foreachkey (other_key, closeContactsTemp)
 			{
 				ShipEntity* other = [UNIVERSE entityForUniversalID:[other_key intValue]];
 				if ((other != nil) && (other->isShip))
@@ -2013,6 +2017,7 @@ ShipEntity* doOctreesCollide(ShipEntity* prime, ShipEntity* other)
 					[closeContactsInfo removeObjectForKey: other_key];
 				}
 			}
+			[closeContactsTemp release];
 		} // end if trackCloseContacts
 
 	} // end if !isSubEntity

src/Core/GameController.m

@@ -337,7 +337,10 @@ static GameController *sSharedController = nil;
 			OOJSFrameCallbacksInvoke(delta_t);
 		}
 	}
-	@catch (id exception) {}
+	@catch (id exception) 
+	{
+		OOLog(@"exception.backtrace",@"%@",[exception callStackSymbols]);
+	}
 	
 #if OOLITE_MAC_LEGACY_FULLSCREEN
 	if ([self inFullScreenMode])