adds keyboard input

TileMap.gd

@@ -5,11 +5,11 @@ enum { LEFT, RIGHT, UP, DOWN }
 enum { DOWN_LEFT, DOWN_RIGHT, LEFT_RIGHT, START, UP_DOWN, UP_LEFT, UP_RIGHT }
 
 func _ready():
-	TrackSelection.connect("track_changed", self, "_reload_track")
-	_reload_track()
+	TrackSelection.connect("track_changed", self, "reload_track")
+	reload_track()
 
-func _reload_track():
-	_clear_tiles()
+func reload_track():
+	clear_tiles()
 	var track = TrackSelection.get_current_track()
 	for idx in range(track.size()):
 		var cell = track[idx]
@@ -19,37 +19,28 @@ func _reload_track():
 		else:
 			var prev = track[idx - 1]
 			var next = track[wrapi(idx + 1, 0, track.size())]
-			tile = _find_tile(cell.direction_to(prev), cell.direction_to(next))
+			tile = find_tile(cell.direction_to(prev), cell.direction_to(next))
 		set_cell(cell.x, cell.y, tile)
 
-func _find_tile(prev, next):
+func find_tile(prev, next):
 	""" Find the right tile given prev and next directions """
-	prev = _as_dir(prev)
-	next = _as_dir(next)
-	# Could be smarter
-	if prev == LEFT:
-		match next:
-			DOWN: return DOWN_LEFT
-			UP: return UP_LEFT
-			RIGHT: return LEFT_RIGHT
-	elif prev == RIGHT:
-		match next:
-			DOWN: return DOWN_RIGHT
-			UP: return UP_RIGHT
-			LEFT: return LEFT_RIGHT
-	elif prev == UP:
-		match next:
-			DOWN: return UP_DOWN
-			LEFT: return UP_LEFT
-			RIGHT: return UP_RIGHT
-	elif prev == DOWN:
-		match next:
-			UP: return UP_DOWN
-			LEFT: return DOWN_LEFT
-			RIGHT: return DOWN_RIGHT
-			
-	
-func _as_dir(vector):
+	prev = as_direction(prev)
+	next = as_direction(next)
+	match [prev, next]:
+		[LEFT, DOWN]: return DOWN_LEFT
+		[LEFT, UP]: return UP_LEFT
+		[LEFT, RIGHT]: return LEFT_RIGHT
+		[RIGHT, DOWN]: return DOWN_RIGHT
+		[RIGHT, UP]: return UP_RIGHT
+		[RIGHT, LEFT]: return LEFT_RIGHT
+		[UP, DOWN]: return UP_DOWN
+		[UP, LEFT]: return UP_LEFT
+		[UP, RIGHT]: return UP_RIGHT
+		[DOWN, UP]: return UP_DOWN
+		[DOWN, LEFT]: return DOWN_LEFT
+		[DOWN, RIGHT]: return DOWN_RIGHT
+
+func as_direction(vector):
 	""" Returns the vector direction as a LEFT, RIGHT, UP or DOWN variant """
 	if abs(vector.x) + abs(vector.y) != 1:
 		return -1  # This is not a valid variant
@@ -67,6 +58,6 @@ func _as_dir(vector):
 #func _process(delta):
 #	pass
 
-func _clear_tiles():
+func clear_tiles():
 	for cell in get_used_cells():
-		self.set_cell(cell.x, cell.y, -1)
+		self.set_cell(cell.x, cell.y, -1)