extends Node2D

const fadeTime = 4.0
const labelDelayTime = 3.0
onready var isIncreasing = true

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

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

func _ready():
	Dialogic.set_variable("DoNotSave", 1)
	bloodIncrement = (bloodEnd - bloodStart) / timeParam;
	zoomIncrement = (zoomEnd - zoomStart) / timeParam;
	currentZoom = zoomStart
	isIncreasing = true
	currentEnergy = 0
	screenWidth = SettingsSingleton.GetCurrectScreenResolutionVector2().x
	screenHeight = SettingsSingleton.GetCurrectScreenResolutionVector2().y
	
	var endLabel = $ForScale / EndText
	
	var localizedTextArray = LanguageLocalization.GetGameEndings()
	var timeline = Dialogic.get_variable("TimelineSave")
	var neededText = tr(localizedTextArray[timeline]);
	endLabel.text = neededText


	yield (get_tree().create_timer(labelDelayTime), "timeout")
	$Tween.interpolate_property(endLabel, "modulate", Color(1, 1, 1, 0), Color(1, 1, 1, 1), fadeTime, Tween.TRANS_LINEAR, 0)
	$Tween.start()

func _process(delta):
	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