extends Node
class_name Main

# Copyright (c) 2019-2020 Péter Magyar
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

export(int, "None",  "Menu", "World") var start_scene = 1
export(PackedScene) var menu_scene : PackedScene
export(PackedScene) var world_scene : PackedScene
export(PackedScene) var debug_camera_scene : PackedScene
export(NodePath) var loading_screen_path : NodePath

export(Vector2) var world_scale : Vector2
export(Array, PackedScene) var bodies : Array
export(int) var tile_size : int

enum StartSceneTypes {
	NONE, MENU, WORLD
}

var _loading_screen : Node

var current_scene : Node
var current_character_file_name : String = ""

func _ready() -> void:
	_loading_screen = get_node(loading_screen_path)

	switch_scene(start_scene)

func switch_scene(scene : int) -> void:
	if current_scene != null:
		for s in get_tree().get_nodes_in_group("save"):
			if not s.has_method("save"):
				print(str(s) + " is in group save, but doesn't have save()!")
				continue

			s.save()
		
		current_scene.queue_free()
		remove_child(current_scene)
		
	WorldNumbers.clear()
	
	if scene == StartSceneTypes.MENU:
		var gs : Node = menu_scene.instance()
		add_child(gs)
		gs.owner = self
		
		current_scene = gs
	
	elif scene == StartSceneTypes.WORLD:
		var gs : Node = world_scene.instance()
#		var gs : Node = get_world().instance()
		add_child(gs)
		gs.owner = self
		
		current_scene = gs
		
		gs.load_character(current_character_file_name)
		
	if current_scene.has_method("needs_loading_screen"):
		if current_scene.needs_loading_screen():
			show_loading_screen()

func load_character(file_name : String) -> void:
	current_character_file_name = file_name
	
	switch_scene(StartSceneTypes.WORLD)

func show_loading_screen() -> void:
	_loading_screen.show()
	
func hide_loading_screen() -> void:
	_loading_screen.hide()
	
func get_world():
	return world_scene

func get_world_scale():
	return world_scale
	
func get_body():
	return bodies[randi() % bodies.size()]
	
func get_tile_size():
	return tile_size