Shoot projectiles:
onactivate>self *OR* namedbrick> spawnprojectile>0|0|0 [projectile] 0\0\0
the 0's represent X, and Y axis.
the 3rd "0" in the first pair of 0's is the Y axis! Y Axis is the height, like up and or down
the first "0" is side to side, as well as the 2nd "0" is diagnale