Spring RTS Engine

Create:

Pretty straightforward: let a Lua function create a new projectile of (type, start position, vector, target).

Would allow for chained weapons, explosions that trigger more weapons (think cluster grenades, etc.) and other fun things.

Destroy:

Lua function to destroy (projectileID). Would probably require another function getting projectiles in a sphere, for short sorts.

Would allow for MIRV-type weapons without a lot hack-arounds, new types of Shield, anti-missile weapons that weren't vlaunch, and other useful things.

For the second part:

+1

Would be cool to be able to kill a projectile and simply order another weapon to fire from its last position without much hassle (I guess just giving it a CEG to call preserving things like the direction would be a good idea)...

Spring.SetProjectileCollision(number projectileID) -> nil

OK, so if we set that to true, the projectile dies? Does it then give us an Explosion to read the position of?

There's nothing to set to true, you just call it for the projectile and the projectile's collision code is called which usually makes it explode.