extends Node2D

const zoomStart = 1.0
const zoomEnd = 0.97
const bloodStart = 0.2
const bloodEnd = 0.9
const timeParam = 1.7

const easterEggDelay = 13.0
var easterPresented
var countdownTime
var beginCountdown

var isDead
var bloodIncrement
var zoomIncrement
var currentZoom
var currentEnergy
var isIncreasing
var screenWidth;
var screenHeight;
var xOffset;
var yOffset

func _ready():
	if not get_tree().root.has_node("Root"):
		return ;
	
	GallerySingleton.AddImage("Death_fall");
	
	if (float(Dialogic.get_variable("Pink_Karma")) <= - 3.5):
		easterPresented = true
	
	var dialogicNode = get_parent().get_parent().get_node("Game").get_child(0).get_child(0)
	dialogicNode.connect("dialogic_signal", self, "_frame_switch_listener")
	beginCountdown = false
	countdownTime = 0.0
	isDead = false
	bloodIncrement = (bloodEnd - bloodStart) / timeParam;
	zoomIncrement = (zoomEnd - zoomStart) / timeParam;
	currentZoom = zoomStart
	isIncreasing = true
	currentEnergy = 0
	screenWidth = SettingsSingleton.GetCurrectScreenResolutionVector2().x
	screenHeight = SettingsSingleton.GetCurrectScreenResolutionVector2().y

func _process(delta):
	if (easterPresented):
		if (countdownTime < easterEggDelay and beginCountdown):
			countdownTime += delta
		elif (countdownTime >= easterEggDelay and beginCountdown):
			beginCountdown = false
			easterEgg()
	
	if (isDead):
		if (isIncreasing):
			if (currentEnergy <= bloodEnd):
				
				currentEnergy += bloodIncrement * delta
				currentZoom += zoomIncrement * delta
				$death / Light2D.self_modulate.a = currentEnergy
				xOffset = (1 - currentZoom) * ($death / Polygon2D.get_global_transform_with_canvas().origin.x) / (screenWidth);
				
				yOffset = (1 - currentZoom) * (screenHeight - $death / Polygon2D.get_global_transform_with_canvas().origin.y) / screenHeight;
				var offset = Vector2(xOffset, yOffset);
				var tiling = Vector2(currentZoom, currentZoom)
				$death / Polygon2D.material.set_shader_param("offset", offset)
				$death / Polygon2D.material.set_shader_param("tiling", tiling);
			else :
				isIncreasing = false
		if ( not isIncreasing):
			if (currentEnergy >= bloodStart):
				
				currentEnergy -= bloodIncrement * delta
				currentZoom -= zoomIncrement * delta
				$death / Light2D.self_modulate.a = currentEnergy
				xOffset = (1 - currentZoom) * ($death / Polygon2D.get_global_transform_with_canvas().origin.x) / (screenWidth);
				yOffset = (1 - currentZoom) * (screenHeight - $death / Polygon2D.get_global_transform_with_canvas().origin.y) / screenHeight;
				var offset = Vector2(xOffset, yOffset);
				$death / Polygon2D.material.set_shader_param("offset", offset)
				$death / Polygon2D.material.set_shader_param("tiling", Vector2(currentZoom, currentZoom));
			else :
				isIncreasing = true
	else :pass
func _frame_switch_listener(string):
	match string:
		"frame2":
			$Sprite2.visible = false
			$frames / Sprite2_1.visible = true
		"frame3":
			$frames / Sprite2_1.visible = false
			$frames / Sprite2_2.visible = true
		"frame4":
			$frames / Sprite2_2.visible = false
			$Sprite3.visible = true
		"death":
			$death.visible = true;
			var tween = $death.get_child(0).get_child(0)
			var light = $death.get_child(0)
			tween.interpolate_method(self, "bloodInterpolate", 0.0, bloodStart, 1.0, Tween.TRANS_LINEAR, 0);
			tween.start()
			yield ($death.get_child(0).get_child(0), "tween_all_completed")
			currentEnergy = bloodStart
			$death.get_child(0).self_modulate.a = bloodStart
			isDead = true;
			if easterPresented:
				beginCountdown = true

func bloodInterpolate(value):
	$death / Light2D.self_modulate.a = value;

func easterEgg():
	if Dialogic.get_variable("Killer") == "Pink":
		var tween = $Tween
		$Sprite4.self_modulate.a = 0
		tween.interpolate_method(self, "interpolateEye", 0, 0.8, 4.5, Tween.TRANS_LINEAR, 0)
		$Sprite4.visible = true
		tween.start()
	
func interpolateEye(value):
	$Sprite4.self_modulate.a = value

func InitForGallery()->Array:
	scale = Vector2(0.5, 0.5)
	$Sprite2.visible = true;
	$frames.visible = false;
	$Sprite3.visible = false;
	$Sprite4.visible = false;
	
	return ["ui_gallery_fall_1", "ui_gallery_fall_2", "ui_gallery_fall_3", "ui_gallery_fall_4"];

func SetSettings(setting):
	if setting == tr("ui_gallery_fall_1"):
		$Sprite2.visible = true;
		$frames.visible = false;
		$Sprite3.visible = false;
		$Sprite4.visible = false;
	elif setting == tr("ui_gallery_fall_2"):
		$Sprite2.visible = false;
		$frames.visible = true;
		$frames / Sprite2_1.visible = true;
		$frames / Sprite2_2.visible = false;
		$Sprite3.visible = false;
		$Sprite4.visible = false;
	elif setting == tr("ui_gallery_fall_3"):
		$Sprite2.visible = false;
		$frames.visible = true;
		$frames / Sprite2_1.visible = false;
		$frames / Sprite2_2.visible = true;
		$Sprite3.visible = false;
		$Sprite4.visible = false;
	elif setting == tr("ui_gallery_fall_4"):
		$Sprite2.visible = false;
		$frames.visible = false;
		$Sprite3.visible = true;
		$Sprite4.visible = false;