adds track parser from txt files

TrackPath.gd

@@ -1,22 +1,23 @@
 extends Path2D
 
 enum { UP, RIGHT, DOWN, LEFT }
-const TRACK_TILES = Global.TRACKS[0]
 
 var tile_size : int = 128
 var half_size : int = tile_size / 2
 onready var map = get_node("../TileMap/")
+
 # Called when the node enters the scene tree for the first time.
 func _ready():
-	_build_track(TRACK_TILES)
+	var track = TrackSelection.get_current_track()
+	_build_track(track)
+
 
-"""
 func _draw():
 	draw_polyline(curve.get_baked_points(), Color.chartreuse, 4.0)
 	for idx in range(0,curve.get_point_count()):
 		draw_circle(curve.get_point_in(idx), 2.0, Color.green)
 		draw_circle(curve.get_point_out(idx), 2.0, Color.blue)
-"""
+
 
 func _build_track(tiles):
 	""" Build the track curve given a tile path """