efficiency of projectiles... a lot of projectiles

[doom_sheep]

I have archers which instead of their attack spawn a dummy unit that is moved in the direction they were shooting, until it hits a footman (large area) who blocks it, or another type unit (smaller area) who gets hurt by it.
the issue is that there are rather extreme amounts of these archers, who then shoot extreme amounts of arrows. this is not good for FPS.

what's the absolute maximum this can be optimized to?

 

[Anitarf]

Depends on what computer is trying to run it.

 

[BPower]

Also depends on the projectile system code.

I would avoid having more than 100 - 150 custom projectiles on screen.
The upper limit before running into serious fps issues is probably around 350.

For offscreen missiles the number can be much higher.