- description (once)
    + map name (string)
    + background file path (string)
    + starting money (int)
    + path width (float)
    + loss threshold (int)

- credits (once)
    + author name (string)
    + version number (string)
    + creation date (string)

- turrets block (once)
    + turret path (string) (repeat as many times as necisary)

- creep wave block (repeat as many times as necisary)
    + creep type (string)
    + size (int)
    + interval (float)

- path block (repeat as many times as necisary)
    + waypoint (x, y) (int, int)
