(next (random-tetramine))
(timer (make-timer))
(grid (make-list 20 :initial-element (make-list 14)))
- (background (draw-image-function "fondo_tetris2.png")))
+ (background (draw-image-function "fondo_tetris.png")))
(defun tetramine ()
(cond ((eq (timer-state timer) 'stopped) (start-timer timer)))