Init commit

Scripts/game.gd

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+extends Node2D
+
+var score: int = 0
+var lives: int = 0
+var added_lives: int = 0
+var score_label: Label
+var lives_box: HBoxContainer
+var spawner: Node2D
+var player: CharacterBody2D
+var ui: CanvasLayer
+var game_over_ui: Control
+var menu_ui: Control
+var life_icon = preload("res://Scenes/life.tscn")
+var menu_scn = preload("res://Scenes/main_menu.tscn")
+var game_over_scn = preload("res://Scenes/game_over.tscn")
+var ship = preload("res://Scenes/ship.tscn")
+var life = preload("res://Sounds/extra_life.wav")
+
+func _ready() -> void:	
+	menu_ui = menu_scn.instantiate()
+	menu_ui.new_game.connect(_new_game)
+	menu_ui.quit_game.connect(_quit_game)
+	
+	await get_tree().process_frame
+	ui.add_child(menu_ui)
+	
+func set_score(amount: int):
+	score = amount
+	score_label.text = "Score: " + str(score)
+	
+	if floor(score / 10000.0) > added_lives:
+		added_lives += 1
+		set_lives(lives + 1)
+		
+		var snd = AudioStreamPlayer.new()
+		add_child(snd)
+		snd.stream = life
+		snd.play()
+		snd.finished.connect(func(): snd.queue_free())
+
+func set_lives(amount: int):
+	lives = amount
+	
+	var icons = lives_box.get_children()
+	
+	var diff = lives - len(icons);
+	if diff > 0:
+		for i in range(diff):
+			lives_box.add_child(life_icon.instantiate())
+	else:
+		if lives >= 0:
+			for i in range(abs(diff)):
+				lives_box.remove_child(icons[len(icons) - 1])
+				icons.remove_at(len(icons) - 1)
+			
+	if lives == 0:
+		spawner.stop()
+		for node in get_tree().get_nodes_in_group("enemies"):
+			node.queue_free()
+			
+		player.queue_free()
+		
+		score_label.visible = false
+		game_over_ui = game_over_scn.instantiate()
+		game_over_ui.new_game.connect(_new_game)
+		game_over_ui.set_score(score)
+		ui.add_child(game_over_ui)
+		
+func _new_game():
+	if score_label:
+		score_label.visible = true
+		set_lives(3)
+		spawner.start()
+		set_score(0)
+	
+	if game_over_ui:
+		game_over_ui.queue_free()
+		
+	if menu_ui:
+		menu_ui.queue_free()
+	
+	player = ship.instantiate()
+	player.position = get_viewport_rect().size / 2
+	
+	get_tree().current_scene.add_child(player)
+	
+func _quit_game():
+	get_tree().quit()