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(use-modules (2d sprite)
             (2d game-loop)
             (2d window)
             (2d helpers)
             (2d agenda)
             (2d coroutine)
             (2d actions)
             (2d vector))

(init-2d)

(define window-width 800)
(define window-height 600)
(define sprite #f)

(define (key-down key mod unicode)
  (cond ((any-equal? key 'escape 'q)
         (close-window)
         (quit))))

;; Draw our sprite
(define (render)
  (draw-sprite sprite))

;; Register callbacks.
(add-hook! on-render-hook (lambda () (render)))
(add-hook! on-key-down-hook (lambda (key mod unicode) (key-down key mod unicode)))

;; Open the window.
(open-window window-width window-height)

;; Load a sprite and center it on the screen.
(set! sprite
      (load-sprite "images/sprite.png"
                   #:position (vector (/ window-width 2)
                                      (/ window-height 2))))

;; Simple script that moves the sprite to a random location every
;; second.
(agenda-schedule
 (colambda ()
   (lerp (lambda (i)
           (set-sprite-position! sprite (vector i (/ window-height 2))))
         0
         800
         120)))

(agenda-schedule
 (colambda ()
   (lerp (lambda (angle)
           (set-sprite-rotation! sprite angle))
         0
         1080
         120)))


(run-game-loop)