package DestroyerSummoner
import initlater EndBoss
import Creep
import Assets
import Fx

constant SUMMONER_ID = 'u016'
constant DESTROYER_ID = 'n00Q'
constant SUMMON_CASTING_EFFECT_ABIL = 'A02J'
constant SUMMONER_BOUNTY = 99
constant DESTROYER_BOUNTY = 666
constant DESTROYER_SUMMON_TIME = 30.
constant updatePeriod = .05
constant animationLoopPeriod = 45.

public class FinalBossSummoning
	var castPercent = 0.
	var animationLoop = 0.
	var castingCount = 0
	var summoners = new LinkedList<DestroyerSummoner>()
	Fx summoningEffect = null
	CallbackPeriodic updateCb
	FText summonText = createFText(middle.toVec3(), "0%", 12.)
	EndBossFight endBossFightRef

	construct(EndBossFight endBossFightRef)
		this.endBossFightRef = endBossFightRef
		summonText.tt.setVisibility(false)
		updateCb = doPeriodically(updatePeriod, (CallbackPeriodic cb) -> this.update())

	function update()
		var newCastingCount = 0
		for summoner in summoners
			if summoner.actor.isAlive()
				if not summoner.casting
					if summoner.getPos().distanceTo2d(middle) < 220.
						startCasting(summoner)
						newCastingCount ++
				else
					newCastingCount++
			else
				summoners.remove(summoner)
		castingCount = newCastingCount
		castPercent += getSummonSpeed(castingCount) * 2. * ANIMATION_PERIOD
		if castPercent < 0
			castPercent = 0
		if castPercent >= 100
			castPercent = 0
			summonDestroyer()
		else
			this.updateAnimation()

	function updateAnimation()
		animationLoop = (animationLoop + updatePeriod / animationLoopPeriod) % 1.
		if (castingCount > 0 or castPercent > 0)
			let percentComp = PercentTo255(castPercent)
			if summoningEffect == null
				summoningEffect = new Fx(PLAYER_COLOR_LIGHT_GRAY, middle.toVec3(), angle(0), Abilities.voodooAura)..setColor(colorA(255, 255, 255, 0))
			summoningEffect..setScale(1.2 + castPercent / 75.)..setColor(colorA(63 + (percentComp * 3. / 4.).toInt(), 0, 0, percentComp))
			summonText.tt..setVisibility(true)
			..setText(castPercent.toInt().toString() + "%", 12)
			..setColor(percentComp, 155 - percentComp, 0, 255)
		else
			if summoningEffect != null
				destroy summoningEffect
				summoningEffect = null
			summonText.tt.setVisibility(false)
		var i = 0
		for summoner in summoners
			if summoner.casting
				summoner.setPos(middle.polarOffset(angle((animationLoop + (i - castingCount) / castingCount) * 6.28), 200.).toVec3().add(0, 0, 120))
				summoner.actor.setFacing(summoner.pos.angleTo2d(middle))
				i++

	function startCasting(DestroyerSummoner summoner)
		summoner.sleeps = true
		summoner.casting = true
		summoner.actor.addAbility(SUMMON_CASTING_EFFECT_ABIL)
		summoner.actor.queueAnimation("attack spell")


	function getSummonSpeed(int castingCount) returns real
		if castingCount <= 0
			return -1
		return castingCount / 4 + castingCount * castingCount / 4

	function addSummoner(DestroyerSummoner summoner)
		summoners.add(summoner)

	function summonDestroyer()
		let summonPos = middle.polarOffset(angle(animationLoop * 6.28), 200.)
		let destroyerFx = new Fx(summonPos, angle(0), Abilities.markOfChaosTarget)
		let middleFx = new Fx(middle, angle(0), Abilities.markOfChaosTarget)..setScale(2)
		doAfter(2.) ->
			destroy destroyerFx
			destroy middleFx
		new Creep(summonPos.toVec3(), DESTROYER_ID, DESTROYER_BOUNTY, middle, summonPos.angleTo(middle))
		endBossFightRef.endDestroyerSummoning()

	ondestroy
		for DestroyerSummoner s in summoners
			new Fx(s.pos, angle(0), Abilities.aIamTarget).hiddenDestroy()
			s.actor.kill()
		destroy summoners
		destroy updateCb
		destroy summonText
		if summoningEffect != null
			destroy summoningEffect

public class DestroyerSummoner extends Creep
	boolean casting  = false

	construct(vec3 pos)
		super(pos, SUMMONER_ID, SUMMONER_BOUNTY, middle, pos.angleTo2d(middle))
		destroy new Fx(pos, angle(0), Abilities.feralspiritdone)..setZ(180)..setScale(1.5)

	override function onDeath()
		super.onDeath()
		casting = false