# OK - "Cube Clicker 2000" where you click a spot and a cube appears there.
# OK - Then add different shapes or colors of cubes.
# OK - Then clamp their positions to be on a grid.
# - Then make it so that when you add yellow cubes, yellow desire meter goes down and green meter goes up.
# - Then click a bunch of grey cubes in a row and have them automatically flatten out into flat grey cubes (roads).
# - Then click and drag to draw the lines of grey cubes.
# - etc.

class_name Main
extends Node

signal set_camera_position(pos:Vector2)

# The idea is for the user to be able to choose the map from GUI later
var map_filenames:Array = [
	"res://maps/tampere_10x10km_1000px.png",
	"res://maps/tampere_10x10km_1024px.png",
	"res://maps/varkaus_256x256px_test.png"
	]
var map_filename:String = map_filenames[2]
var _world_generator:WorldGenerator
var _tilemap_generator:TileMapGenerator


func _init():
#	DisplayServer.window_set_size(
#		#Vector2i(Globals.DEFAULT_X_RES, Globals.DEFAULT_Y_RES)
#		Vector2i(3800,2000)
#	)
	pass
	
# Called when the node enters the scene tree for the first time.
func _ready():	 
	# create a new world and worldgenerator
	_world_generator = WorldGenerator.new()
	_tilemap_generator = TileMapGenerator.new()	
	
	# generate terrain. quit game if generation fails.	
	if !_world_generator.generate_world(map_filename):
		push_error(Globals.ERROR_WHILE_GENERATING_MAP)
		quit_game()	
	
	if !_tilemap_generator:
		push_error(Globals.ERROR_MAKING_WORLD_INSTANCE)
		quit_game()
		
	_tilemap_generator.start()
	_tilemap_generator.test_func()
		
	# center camera to world map
	emit_signal(
		"set_camera_position", 
		Vector2(Globals.map_size.x / 2.0 * Globals.TILE_SIZE_X, 
				Globals.map_size.y / 2.0 * Globals.TILE_SIZE_Y)
	)

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(_delta):
	pass
	
func quit_game():
	get_tree().get_root().propagate_notification(NOTIFICATION_WM_CLOSE_REQUEST)
	#SceneTree.quit