package SphereTower
import Projectile
import DummyDamage

constant real AREA_OF_EFFECT = 40.
constant string FX_PATH = "sdg"
constant real HEIGHT = 50.

// public class SphereTower extends Tower
// 	int level
// 	Sphere sphere
// 	real speed
// 	real spdist = 500.
// 	boolean isDistGrowing = false
// 	boolean isDistSrinking = false

// 	construct(Tower t)
// 		super(t)
// 		level = 0
// 		sphere = new Sphere(vec3(pos.x+spdist,pos.y,HEIGHT), speed, owner, level)

// 	override function update()
// 		super.update()
// 		if isDistGrowing
// 			if spdist <= 1000.
// 				spdist += 3
// 				angle curra = pos.angleTo2d(sphere.pos.toVec2())
// 				sphere.setPos(vec3(polarProjectionX(pos.x,spdist,curra),polarProjectionY(pos.y,spdist,curra),HEIGHT))
// 			else
// 				isDistGrowing = false
// 				isDistSrinking = true
// 		else if isDistSrinking
// 			if spdist >= 180
// 				spdist -= 3
// 				angle curra = pos.angleTo2d(sphere.pos.toVec2())
// 				sphere.setPos(vec3(polarProjectionX(pos.x,spdist,curra),polarProjectionY(pos.y,spdist,curra),HEIGHT))
// 			else
// 				isDistGrowing = true
// 				isDistSrinking = false
// 		sphere.setXYAngle(angle(speed/spdist))

// 	override function onUpgrade()
// 		level ++
// 		sphere.level ++
// 		speed += 5
// 		sphere.setSpeed(speed)

// 	ondestroy
// 		destroy(sphere)


function isUnitTargetable(unit u) returns boolean
	return not IsUnitType(u, UNIT_TYPE_DEAD) and not IsUnitType(u, UNIT_TYPE_MAGIC_IMMUNE) and not IsUnitType(u, UNIT_TYPE_STRUCTURE)


class Sphere extends Projectile
	int level

	construct(vec3 pos, real speed, player owner, int level)
		super( pos, AREA_OF_EFFECT, owner, angle(0.), FX_PATH )
		setSpeed(speed)
		this.level = level

	override function update()
		super.update()
		GroupEnumUnitsInRange(ENUM_GROUP, pos.x, pos.y, AREA_OF_EFFECT, null)
		for u in ENUM_GROUP
			if isUnitTargetable(u) and IsUnitEnemy(u, owner)
				new DummyDamage()..attacker(owner)..target(u)..amount(5. * level)..attackType(ATTACK_TYPE_PIERCE)
				..damageType(DAMAGE_TYPE_NORMAL)..apply(true)

		ENUM_GROUP.clear()