Hi.
Im building a game where i would like the blood stains (when shooting people) to never disapear. Now i just spawn a movieclip/sprite on the map whenever a body is been hit, and just leave the stain there. The problem is that this gets very choppy after a while and the fps is plummeting…
I also spawn gun shells after every shoots been fired, and thats flawless, it never lags one bit. I guess this is due to the tiny size (compared to the blood stains)?
I would have given up if i would not have found this game, where it works without any lag - at all. In this game the blood stains are never removed and all bodies are still on the ground, no lag. The game: http://www.crazymonkeygames.com/Endless-Zombie-Rampage-2.html
Screenshot of what i mean:

Do anyone have ANY ideas how this is done with eg. zombie rampage?
Thx.