putting together in Main scene

Main.gd

@@ -0,0 +1,18 @@
+extends Node
+
+# Declare member variables here. Examples:
+# var a = 2
+# var b = "text"
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	Global.selected_track = 0
+
+
+func start_game():
+	pass
+
+
+func change_track():
+	""" Change the race track """
+	pass