modularised ball vendor

scenes/level.gd

@@ -4,17 +4,20 @@ var _current_level = 1
 var ball_basic_scene = preload("res://balls/basic/ball_basic.tscn")
 var ball_speed_scene = preload("res://balls/speed/ball_speed.tscn")
 
+func _ready():
+	SignalBus.on_try_buy_ball.connect(_on_try_buy_ball)
+
 func _physics_process(delta):
 	if $GameContent/Blocks.get_children().size() == 0:
 		_current_level += 1
-		print("DONE")
 
-func _on_button_basic_ball_pressed():
-	var new_ball = ball_basic_scene.instantiate()
-	new_ball.global_position = $GameContent/BallSpawn.global_position
-	$GameContent/Balls.add_child(new_ball)
-
-func _on_button_speed_ball_pressed():
-	var new_ball = ball_speed_scene.instantiate()
+func _on_try_buy_ball(id: int):
+	var new_ball
+	match id:
+		1:
+			new_ball = ball_basic_scene.instantiate()
+		2:
+			new_ball = ball_speed_scene.instantiate()
+	
 	new_ball.global_position = $GameContent/BallSpawn.global_position
 	$GameContent/Balls.add_child(new_ball)