extends Node

# types of fades?

class Fade:
	func _init():
		pass

const Data = preload("res://data.gd")

# pull them into Game too
const DEFAULT_CHARS_PER_SECOND = Data.DEFAULT_CHARS_PER_SECOND
const Characters = Data.Characters
const Images = Data.Images
const Scenes = Data.Scenes
const Themes = Data.Themes

# generic game config globals
var game_started = false setget _on_game_started_set
var reading_speed = 1.0 setget _on_set_reading_speed
var master_vol = 50 setget _on_set_master_vol
var music_vol = 50 setget _on_set_music_vol
var sfx_vol = 50 setget _on_set_sfx_vol

# options state
signal on_reading_speed_changed(new_value)
signal on_master_volume_changed(new_value)
signal on_music_volume_changed(new_value)
signal on_sfx_volume_changed(new_value)

signal on_settings_enter()
signal on_settings_exit()

# music related
onready var music_player = get_node("music_player")
onready var sfx_player = get_node("sfx_player")

# transition node
onready var transition = get_node("trans_layer/transition")

# actual game state here
var current_registry

func _ready():
	pass

func _register_functions():
	
	# default VN.. functions
	current_registry["SWITCH_SCENE"] = funcref(self, "_switch_scene_fnc")
	current_registry["SET_BACKGROUND"] = funcref(self, "_set_background_fnc")
	

func _set_background_fnc(args):
	if args.size() == 1:
		var bg_name = args[0]
		var bg_texture = load(Images[bg_name])
		SceneSwitcher.current_scene.set_background(bg_texture)

func _switch_scene_fnc(args):
	if args.size() == 1:
		var scene_name = args[0]
		var scene_path = Scenes[scene_name]
		switch_scene_to(scene_path)

func _on_game_started_set(v):
	if v and not game_started:
		print("STARTO")
		_on_game_start()
	game_started = v

func _on_set_reading_speed(s):
	pass

func _on_set_master_vol(v):
	pass

func _on_set_music_vol(v):
	pass

func _on_set_sfx_vol(v):
	pass

func _on_game_start():

	# all game state here
	current_registry = {}
	
	# register all de stuff
	_register_functions()
	

# public interface sorta
func switch_scene_to(scene_path, fade = true):
	
	if fade:
		transition.start_transition()
		yield(transition, "on_transition_time")
	
	SceneSwitcher.goto_scene(scene_path)
	
	if fade:
		yield(transition, "on_transition_completed")
		if SceneSwitcher.current_scene.has_method("on_scene_start"):
			SceneSwitcher.current_scene.on_scene_start()