summaryrefslogtreecommitdiff
path: root/examples/action.scm
blob: eb2d65ed612270581b3b0630f8bc09f61ab2a005 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
(use-modules (2d sprite)
             (2d game-loop)
             (2d window)
             (2d helpers)
             (2d agenda)
             (2d coroutine)
             (2d actions)
             (2d vector))

(define window-width 800)
(define window-height 600)

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

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

(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)))

;; 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)