AddElement cleanup

Source/missiles.cpp

@@ -2058,7 +2058,7 @@ void AddElement(int mi, int sx, int sy, int dx, int dy, int midir, char mienemy,
 		dy += YDirAdd[midir];
 	}
 	missile[mi]._midam = 2 * (plr[id]._pLevel + random(60, 10) + random(60, 10)) + 4;
-	for (i = 0; i < missile[mi]._mispllvl; i++) {
+	for (i = missile[mi]._mispllvl; i > 0; i--) {
 		missile[mi]._midam += missile[mi]._midam >> 3;
 	}
 	missile[mi]._midam >>= 1;