package HomingProjectile
import public Entity
import Projectile


public enum HOMING
	none // wut
	attract // Direct homing
	angular // Chaning angle
	forced // pushed homing (warlock-like)
	circle // Circular motion around the target with set distance

public abstract class HomingProjectile extends Projectile
	HOMING htype = HOMING.none
	Entity target
	real homingSpeed = 0.
	real radii


	construct(vec3 pos, real radius, player owner, angle xyAngle, string fxpath)
		super(pos, radius, owner, xyAngle, fxpath)

	function setTarget(Entity e, HOMING htype, real homingspeed)
		target = e
		this.htype = htype
		this.homingSpeed = homingspeed
		radii = radius*radius + e.radius*e.radius

	override function update()
		// let dist = pos.distanceToSq(target.getPos())
		// let anglexy = pos.angleTo2d(target.getPos())
		// if dist < radii
		// 	terminate()
		// 	return

		// switch htype
		// 	case HOMING.none
		// 		skip
		// 	case HOMING.attract
		// 		vel = (target.pos - this.pos).setLength(homingSpeed)
		// 	case HOMING.circle
		// 		skip
		// 	case HOMING.angular

		// 		vel = vec3(getSpeed() * xyAngle.cos(), getSpeed() * xyAngle.sin(), 0.)

		// 	case HOMING.forced
		// 		var tmp = pos.moveTowards(target.pos, homingSpeed + homingSpeed * dist/100000)

		// 		tmp -= pos
		// 		vel *= 0.95
		// 		vel += tmp
		// 		homingSpeed *= 1.01

		super.update()