extends Control

var multiple = 1
onready var viewport = $ViewportContainer
onready var border = $TextureRect
onready var cheat_label = $ViewportContainer/Viewport/

#	INTEGER SCALE SETTINGS
export var overscale = 0
onready var root = get_tree().root
#	RESOLUTION
onready var res = Game.resolution
onready var half_res = Vector2(res.x/2,res.y/2)

func _ready():
	#SCREEN RESIZE SIGNAL
	get_tree().connect("screen_resized", self, "_on_screen_resized")
	root.set_attach_to_screen_rect(root.get_visible_rect())
	_on_screen_resized()
	#STUPID VIEWPORT GODOT BUG FIX
	$ViewportContainer/Viewport.set_deferred("handle_input_locally", true)

func _on_screen_resized():
#	VARS
	var window_size = OS.get_window_size()
	match Options.scaling_mode:
		Options.ScalingMode.INTEGER:
			#	CENTER THE VIEWPORT
			viewport.rect_position.x = (window_size.x / 2) - half_res.x
			viewport.rect_position.y = (window_size.y / 2) - half_res.y
			#	DETERMINE WHAT THE HIGHEST INTEGER MULTIPLE IS
			multiple = (window_size / res).floor()
			#	SET THE HIGHEST SCALE AXIS TO THE LOWEST TO STAY SQUARE
			if multiple.x < multiple.y: multiple.y = multiple.x
			if multiple.x > multiple.y: multiple.x = multiple.y
			#	SCALE THE VIEWPORT (IF OVERSCALE IS ON, SCALE IT BY 1 EXTRA)
			viewport.rect_scale = multiple + Vector2(overscale,overscale)
			#viewport.rect_scale = Vector2(2,2)
		Options.ScalingMode.ASPECT:
			#	CENTER THE VIEWPORT
			viewport.rect_position.x = (window_size.x / 2) - half_res.x
			viewport.rect_position.y = (window_size.y / 2) - half_res.y
			#	DETERMINE WHAT THE HIGHEST INTEGER MULTIPLE IS
			multiple = window_size / res
			#	SET THE HIGHEST SCALE AXIS TO THE LOWEST TO STAY SQUARE
			if multiple.x < multiple.y: multiple.y = multiple.x
			if multiple.x > multiple.y: multiple.x = multiple.y
			#	SCALE THE VIEWPORT
			viewport.rect_scale = multiple
		Options.ScalingMode.STRETCH:
			viewport.rect_position.x = (window_size.x / 2) - half_res.x
			viewport.rect_position.y = (window_size.y / 2) - half_res.y
			viewport.rect_scale = window_size / res
#	BORDER
	border.rect_size = window_size