Init commit

godot/scenes/game_root/game_root.gd

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+extends Node
+class_name GameRoot
+
+signal load_map(name: String)
+
+# -- config from args
+var config_file: String = ""
+
+const MAIN_MENU_SCENE := "res://scenes/menus/main/main_menu.tscn"
+
+@onready var level_root: Node3D = $LevelLoader/Level
+@onready var level_spawner: MultiplayerSpawner = $LevelLoader/MultiplayerSpawner
+
+func _parse_args() -> void:
+	var args := Array(OS.get_cmdline_args())
+	
+	var config_arg: String = "--config"
+	if args.has(config_arg):
+		var index := args.find(config_arg)
+		config_file = args[index + 1]
+	
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	_parse_args()
+
+	if OS.has_feature("dedicated_server") or DisplayServer.get_name() == "headless":
+		var err := _start_dedicated_server()
+		if err != OK:
+			logger.error("couldn't start the server, err is " + str(err))
+	else:
+		var err := _start_game()
+		if err != OK:
+			logger.error("couldn't start the game, err is " + str(err))
+
+func _start_dedicated_server() -> Error:
+	if config_file != "":
+		logger.info("reading config from the file: " + config_file)
+	logger.info("starting in the dedicated server mode")
+	return OK
+
+
+func _start_game() -> Error:
+	logger.info("starting in the game mode")
+
+	if not ResourceLoader.exists(MAIN_MENU_SCENE):
+		return ERR_DOES_NOT_EXIST
+	var scene: PackedScene = ResourceLoader.load(MAIN_MENU_SCENE)
+	if not scene.can_instantiate():
+		return ERR_CANT_OPEN
+	
+	var node: MainMenu = scene.instantiate()
+	add_child(node)	
+	return OK
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass
+
+
+func _on_load_map(map_name: String) -> void:
+	for c in level_root.get_children():
+		level_root.remove_child(c)
+		c.queue_free()
+	
+	var path_tmpl := "res://scenes/maps/maps/%s"
+	var path := path_tmpl % map_name
+	
+	if not ResourceLoader.exists(path):
+		logger.error("map " + map_name + " doesn't exist")
+	
+	var scene: PackedScene = ResourceLoader.load(path)
+	if scene.can_instantiate():
+		var node: Node3D = scene.instantiate()
+		logger.info("loading map: " + map_name)
+		level_root.add_child(node)
+	else:
+		logger.error("Can't initialize")
+	

godot/scenes/game_root/game_root.tscn

@@ -0,0 +1,18 @@
+[gd_scene load_steps=2 format=3 uid="uid://d3qjxw4rk4yn4"]
+
+[ext_resource type="Script" path="res://scenes/game_root/game_root.gd" id="1_eb14f"]
+
+[node name="GameRoot" type="Node"]
+editor_description = "This node serves a starting point for the game. When the game is running as a dedicated server it's supposed to read the config file and start the server, when the game is running in a default mode, it should render the main menu"
+script = ExtResource("1_eb14f")
+
+[node name="LevelLoader" type="Node" parent="."]
+editor_description = "This node is supposed to make it possible to sync the server data across all the possible players"
+
+[node name="Level" type="Node3D" parent="LevelLoader"]
+
+[node name="MultiplayerSpawner" type="MultiplayerSpawner" parent="LevelLoader"]
+_spawnable_scenes = PackedStringArray("res://scenes/maps/maps/lowpoly_tdm_1.tscn")
+spawn_path = NodePath("../Level")
+
+[connection signal="load_map" from="." to="." method="_on_load_map"]