fixed #75 missiles fly forever

OpenRa.Game/Effects/Missile.cs

@@ -81,13 +81,7 @@ namespace OpenRa.Effects
 
 			var dist = Target.CenterLocation - Pos;
 			if (dist.LengthSquared < MissileCloseEnough * MissileCloseEnough || Target.IsDead)
-			{
-				world.AddFrameEndTask(w => w.Remove(this));
-
-				if (t > Projectile.Arm * 40)	/* don't blow up in our launcher's face! */
-					Combat.DoImpact(Pos.ToInt2(), Pos.ToInt2(), Weapon, Projectile, Warhead, FiredBy);
-				return;
-			}
+				Explode(world);
 
 			var speed = Scale * Weapon.Speed * ((targetAltitude > 0 && Weapon.TurboBoost) ? 1.5f : 1f);
 
@@ -99,7 +93,17 @@ namespace OpenRa.Effects
 				world.AddFrameEndTask(w => w.Add(
 					new Smoke(w, (Pos - 1.5f * move - new int2( 0, Altitude )).ToInt2(), Projectile.Trail)));
 
-			// todo: running out of fuel
+			if (Projectile.RangeLimit != 0 && t > Projectile.RangeLimit * 40)
+				Explode(world);
+		}
+
+		void Explode(World world)
+		{
+			world.AddFrameEndTask(w => w.Remove(this));
+
+			if (t > Projectile.Arm * 40)	/* don't blow up in our launcher's face! */
+				Combat.DoImpact(Pos.ToInt2(), Pos.ToInt2(), Weapon, Projectile, Warhead, FiredBy);
+			return;
 		}
 
 		public IEnumerable<Renderable> Render()

OpenRa.Game/GameRules/ProjectileInfo.cs

@@ -25,25 +25,21 @@ namespace OpenRa.GameRules
 		public readonly bool AA = false;
 		public readonly bool AG = true;
 		public readonly bool ASW = false;
-		public readonly string Trail = null;
 		public readonly bool Arcing = false;
 		public readonly int Arm = 0;
 		public readonly bool Degenerates = false;
-		public readonly bool Dropping = false;
-		public readonly int Frames = 1;
-		public readonly bool Gigundo = false;
 		public readonly bool High = false;
 		public readonly string Image = null;
 		public readonly bool Inaccurate = false;
-		public readonly bool Inviso = false;
 		public readonly bool Parachuted = false;
 		public readonly bool Proximity = false;
 		public readonly int ROT = 0;
-		public readonly bool Ranged = false;
 		public readonly bool Rotates = false;
 		public readonly bool Shadow = true;
-		public readonly bool Translucent = false;
 		public readonly bool UnderWater = false;
 		public readonly int RangeLimit = 0;
+
+		// OpenRA-specific:
+		public readonly string Trail = null;
 	}
 }