extends Node2D

var time = 0
var asteroidObj = load("res://Objects/Asteroid.tscn")
var coinObj = load("res://Objects/Coin.tscn")
var spawnTime
var deltaSpawnTime = 1
var asteroidSpawnRepeat = 0
var hiscore = 0
var numOfCoins = 0
var lastscore = 0
var pause_button = preload("res://Images and Anims/In Game/pausebutton.png")
var play_button = preload("res://Images and Anims/In Game/playbutton.png")
onready var rocketNode = get_node("Rocket")

func load_game():
	var save_game = File.new()
	if not save_game.file_exists("user://savegame.save"):
		return
	save_game.open("user://savegame.save", File.READ)
	while save_game.get_position() < save_game.get_len():
		var data = parse_json(save_game.get_line())
		hiscore = data["hiscore"]
		numOfCoins = data["numOfCoins"]
		
func _ready():
	load_game()
	$CanvasLayer/PauseButton.texture_normal = play_button
	$CanvasLayer/PauseButton.connect("pressed", self, "_pause_game")

func _process(delta):
	if rocketNode.collided:
		lastscore = $"Rocket".lastscore
		save_data()
	spawnTime = 500/get_viewport_rect().size.x * deltaSpawnTime
	time += delta
	if time > spawnTime:
		asteroidSpawnRepeat += 1
		time = 0
		if spawnTime > 300/get_viewport_rect().size.x:
			deltaSpawnTime *= 0.995
		if has_node("Rocket"):
			var asteroid = asteroidObj.instance()
			add_child(asteroid)
			asteroid.position.x = rand_range($Rocket.position.x - get_viewport_rect().size.x/2, $Rocket.position.x + get_viewport_rect().size.x/2)
			asteroid.position.y = rand_range($Rocket.position.y - get_viewport_rect().size.y, $Rocket.position.y - 2 * get_viewport_rect().size.y)
			asteroid.rotation = rand_range(0, 6.28)
	if asteroidSpawnRepeat == 5:
		asteroidSpawnRepeat = 0
		if has_node("Rocket"):
			var coin = coinObj.instance()
			add_child(coin)
			coin.position.x = rand_range($Rocket.position.x - get_viewport_rect().size.x/2, $Rocket.position.x + get_viewport_rect().size.x/2)
			coin.position.y = rand_range($Rocket.position.y - get_viewport_rect().size.y, $Rocket.position.y - 2 * get_viewport_rect().size.y)

func save():
	var save_dict = {
		"hiscore" : hiscore,
		"lastscore" : lastscore,
		"numOfCoins" : numOfCoins
	}
	return save_dict

func _pause_game():
	print(get_tree().paused)
	get_tree().paused = !get_tree().paused
	if (!get_tree().paused):
		$CanvasLayer/PauseButton.texture_normal = play_button
	else:
		$CanvasLayer/PauseButton.texture_normal = pause_button

func save_data():
	var save_game = File.new()
	save_game.open("user://savegame.save", File.WRITE)
	var data = call("save")
	save_game.store_line(to_json(data))