To shoot projectiles, we must create a class in which we can edit derived objects' velocities. By setting velocities to exact values determined via trigonometric equations, we can move these projectiles precisely so that they always follow whichever enemy they're assigned to.

Once we have projectiles moving, we'll learn how to restrict their production, only shooting if an enemy is within range of a building.

• 0:00 Create projectile class

• 4:15 Render projectiles

• 8:25 Move projectiles towards enemies

• 13:48 Remove projectile on enemy hit

• 23:09 Refactor for loop

• 26:28 Speed up projectiles

• 27:13 Only shoot projectiles if within range of buildings

• 33:44 Shoot projectiles continuously