-(define draw-asteroid
- (let ((asteroid (load-texture "Asteroid.png")))
- (lambda (a)
- (to-origin)
- (translate (assoc-ref a 'x) (assoc-ref a 'y))
- (rotate (assoc-ref a 'angle))
- (draw-texture asteroid))))
-
-(define (move-asteroid a)
- (let* ((x (assoc-ref a 'x)) (y (assoc-ref a 'y))
- (angle (assoc-ref a 'angle))
- (vx (assoc-ref a 'vx)) (vy (assoc-ref a 'vy)))
- (set! x (+ x vx))
- (set! y (+ y vy))
- (cond ((> x max-x) (set! vx -1))
- ((< x min-x) (set! vx 1)))
- (cond ((> y max-y) (set! vy -1))
- ((< y min-y) (set! vy 1)))
-
- (assoc-multiple-set! a 'x x 'y y 'angle (+ angle 1) 'vx vx 'vy vy)))
-
-(define draw-ship
- (let ((ship1 (load-texture "Ship1.png"))
- (ship2 (load-texture "Ship2.png")))
- (lambda (s)
- (to-origin)
- (translate (assoc-ref s 'x) (assoc-ref s 'y))
- (rotate (assoc-ref s 'angle))
- (let ((ship (if (assoc-ref s 'moving) ship2 ship1)))
- (draw-texture ship)))))
-
-(define (move-ship s)
- (let ((x (assoc-ref s 'x)) (y (assoc-ref s 'y))
- (angle (assoc-ref s 'angle))
- (moving (assoc-ref s 'moving)))
- (cond ((key? 'left) (set! angle (+ angle 5)))
- ((key? 'right) (set! angle (- angle 5))))
- (cond ((key? 'up)
- (let ((r (degrees-to-radians (- angle))))
- (set! x (+ x (* 4 (sin r))))
- (set! y (+ y (* 4 (cos r)))))
- (cond ((> x max-x) (set! x min-x))
- ((< x min-x) (set! x max-x)))
- (cond ((> y max-y) (set! y min-y))
- ((< y min-y) (set! y max-y)))
- (set! moving #t))
- (else
- (set! moving #f)))
-
- (assoc-multiple-set! s 'x x 'y y 'angle angle 'moving moving)))
-
-(define (ship-shot s)
- (cond ((key-pressed? 'space)
- `((x . ,(assoc-ref s 'x)) (y . ,(assoc-ref s 'y)) (angle . ,(assoc-ref s 'angle))))
- (else
- #f)))
-
-(define (draw-shot sh)
- (to-origin)
- (translate (assoc-ref sh 'x) (assoc-ref sh 'y))
- (rotate (assoc-ref sh 'angle))
- (draw-line 10))
-
-(define (move-shots shots)
- (cond ((null? shots) '())
- (else
- (let* ((sh (car shots))
- (x (assoc-ref sh 'x)) (y (assoc-ref sh 'y))
- (angle (assoc-ref sh 'angle))
- (r (degrees-to-radians (- angle))))
- (set! x (+ x (* 10 (sin r))))
- (set! y (+ y (* 10 (cos r))))
- (cond ((and (<= x max-x)
- (>= x min-x)
- (<= y max-y)
- (>= y min-y))
- (cons `((x . ,x) (y . ,y) (angle . ,angle))
- (move-shots (cdr shots))))
- (else
- (move-shots (cdr shots))))))))
+(define-mob (asteroid
+ (image (load-texture "Asteroid.png"))
+ (x 0) (y 0) (angle 0))
+ (translate x y)
+ (rotate angle)
+ (draw-texture image))
+
+(show-mob (make-asteroid))
+
+;; (define draw-asteroid
+;; (let ((asteroid (load-texture "Asteroid.png")))
+;; (lambda (a)
+;; (to-origin)
+;; (translate (assoc-ref a 'x) (assoc-ref a 'y))
+;; (rotate (assoc-ref a 'angle))
+;; (draw-texture asteroid))))
+
+;; (define (move-asteroid a)
+;; (let ((x (assoc-ref a 'x)) (y (assoc-ref a 'y))
+;; (angle (assoc-ref a 'angle))
+;; (vx (assoc-ref a 'vx)) (vy (assoc-ref a 'vy)))
+;; (set! x (+ x vx))
+;; (set! y (+ y vy))
+;; (cond ((> x max-x) (set! vx -1))
+;; ((< x min-x) (set! vx 1)))
+;; (cond ((> y max-y) (set! vy -1))
+;; ((< y min-y) (set! vy 1)))
+
+;; (assoc-multiple-set! a 'x x 'y y 'angle (+ angle 1) 'vx vx 'vy vy)))
+
+;; (define draw-ship
+;; (let ((ship1 (load-texture "Ship1.png"))
+;; (ship2 (load-texture "Ship2.png")))
+;; (lambda (s)
+;; (to-origin)
+;; (translate (assoc-ref s 'x) (assoc-ref s 'y))
+;; (rotate (assoc-ref s 'angle))
+;; (let ((ship (if (assoc-ref s 'moving) ship2 ship1)))
+;; (draw-texture ship)))))
+
+;; (define (move-ship ship)
+;; (let* ((s ship)
+;; (x (assoc-ref s 'x)) (y (assoc-ref s 'y))
+;; (angle (assoc-ref s 'angle))
+;; (moving (assoc-ref s 'moving)))
+;; (cond ((key? 'left) (set! angle (+ angle 5)))
+;; ((key? 'right) (set! angle (- angle 5))))
+;; (cond ((key? 'up)
+;; (let ((r (degrees-to-radians (- angle))))
+;; (set! x (+ x (* 4 (sin r))))
+;; (set! y (+ y (* 4 (cos r)))))
+;; (cond ((> x max-x) (set! x min-x))
+;; ((< x min-x) (set! x max-x)))
+;; (cond ((> y max-y) (set! y min-y))
+;; ((< y min-y) (set! y max-y)))
+;; (set! moving #t))
+;; (else
+;; (set! moving #f)))
+
+;; (assoc-multiple-set! s 'x x 'y y 'angle angle 'moving moving)))
+
+;; (define (ship-shot s)
+;; (cond ((key-pressed? 'space)
+;; `((x . ,(assoc-ref s 'x)) (y . ,(assoc-ref s 'y)) (angle . ,(assoc-ref s 'angle))))
+;; (else
+;; #f)))
+
+;; (define (draw-shot sh)
+;; (to-origin)
+;; (translate (assoc-ref sh 'x) (assoc-ref sh 'y))
+;; (rotate (assoc-ref sh 'angle))
+;; (draw-line 10))
+
+;; (define (move-shots shots)
+;; (cond ((null? shots) '())
+;; (else
+;; (let* ((sh (car shots))
+;; (x (assoc-ref sh 'x)) (y (assoc-ref sh 'y))
+;; (angle (assoc-ref sh 'angle))
+;; (r (degrees-to-radians (- angle))))
+;; (set! x (+ x (* 10 (sin r))))
+;; (set! y (+ y (* 10 (cos r))))
+;; (cond ((and (<= x max-x)
+;; (>= x min-x)
+;; (<= y max-y)
+;; (>= y min-y))
+;; (cons `((x . ,x) (y . ,y) (angle . ,angle))
+;; (move-shots (cdr shots))))
+;; (else
+;; (move-shots (cdr shots))))))))