(no commit message)

[gacela.git] / games / asteroids / asteroids.scm

diff --git a/games/asteroids/asteroids.scm b/games/asteroids/asteroids.scm
index a1e23f6d599c99bb7548c28ee13e67af664d3d1f..84c0ac4d795c65ec9cfa97ff1d2304bb4932889d 100644 (file)
--- a/games/asteroids/asteroids.scm
+++ b/games/asteroids/asteroids.scm
@@ -1,23 +1,148 @@
 (set-game-properties! #:title "Gacela Asteroids")
 
-(define draw-asteroid
-  (let ((asteroid (load-texture "Asteroid.png")))
-    (lambda (a)
-      (to-origin)
-      (translate (car a) (cadr a))
-      (draw-texture asteroid))))
-
-(define (move-asteroid a)
-  (let* ((x (car a)) (y (cadr a))
-        (vx (caddr a)) (vy (cadddr a))
-        (nx (+ x vx)) (ny (+ y vy)))
-    (cond ((> nx 320) (set! vx -1))
-         ((< nx -320) (set! vx 1)))
-    (cond ((> ny 240) (set! vy -1))
-         ((< ny -240) (set! vy 1)))
-    (list (+ x vx) (+ y vy) vx vy)))
-
-(let ((asteroids '((100 100 1 1) (-100 -100 -1 1))))
-  (run-game
-   (set! asteroids (map move-asteroid asteroids))
-   (for-each draw-asteroid asteroids)))
+(define max-x (/ (assoc-ref (get-game-properties) 'width) 2))
+(define min-x (- max-x))
+(define max-y (/ (assoc-ref (get-game-properties) 'height) 2))
+(define min-y (- max-y))
+
+(define-mob (asteroid
+            (image (load-texture "Asteroid.png"))
+            (x 0) (y 0) (angle 0) (dir 0))
+  (let ((r (degrees-to-radians (- dir))))
+    (set! x (+ x (sin r)))
+    (set! y (+ y (cos r))))
+  (set! angle (+ angle 1))
+
+  (cond ((or (> x max-x) (< x min-x))
+        (set! dir (* -1 dir))))
+  (cond ((or (> y max-y) (< y min-y))
+        (set! dir (- 180 dir))))
+  
+  (translate x y)
+  (rotate angle)
+  (draw-texture image))
+
+(define-mob (ship
+            (ship1 (load-texture "Ship1.png"))
+            (ship2 (load-texture "Ship2.png"))
+            (x 0) (y 0) (angle 0)
+            (moving #f))
+  (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)))
+  (cond ((key-pressed? 'space)
+        (show-mob (make-shot #:x x #:y y #:angle angle))))
+
+  (translate x y)
+  (rotate angle)
+  (draw-texture (if moving ship2 ship1)))
+
+(define-mob (shot (x 0) (y 0) (angle 0))
+  (let ((r (degrees-to-radians (- angle))))
+    (set! x (+ x (* 10 (sin r))))
+    (set! y (+ y (* 10 (cos r))))
+    (cond ((or (> x max-x)
+              (< x min-x)
+              (> y max-y)
+              (< y min-y))
+          (kill-me))))
+
+  (translate x y)
+  (rotate angle)
+  (draw-line 10))
+
+
+(define (init-asteroids n)
+  (define (xy n m)
+    (let ((n2 (- (random (* (- n m) 2)) (- n m))))
+      (if (> n2 0) (+ n2 m) (- n2 m))))
+
+  (cond ((> n 0)
+        (let ((x (xy max-x 100)) (y (xy max-y 100))
+              (angle (random 360)) (dir (- (random 360) 180)))
+          (show-mob (make-asteroid #:x x #:y y #:angle angle #:dir dir)))
+        (init-asteroids (- n 1)))))
+
+;(show-mob (make-asteroid))
+(init-asteroids 2)
+(show-mob (make-ship))
+
+;;   (define (xy n r)
+;;     (let ((n2 (- (random (* n 2)) n)))
+;;       (cond ((and (< n2 r) (>= n2 0)) r)
+;;         ((and (> n2 (- r)) (< n2 0)) (- r))
+;;         (else n2))))
+
+;;   (cond ((= n 0) '())
+;;     (else
+;;      (cons `((x . ,(xy max-x 20)) (y . ,(xy max-y 20)) (angle . 0) (vx . 1) (vy . 1) (size . 95))
+;;            (make-asteroids (- n 1))))))
+
+;;   (define (new-game n)
+;;     (set! asteroids (make-asteroids n))
+;;     (set! ship '((x . 0) (y . 0) (angle . 0) (moving . #f)))
+;;     (set! shots '()))
+
+;;   (new-game 2)
+
+;; (define (killed-ship? s a)
+;;   (cond ((null? a) #f)
+;;     (else
+;;      (or (< (distance-between-points (list (assoc-ref s 'x) (assoc-ref s 'y))
+;;                                      (list (assoc-ref (car a) 'x) (assoc-ref (car a) 'y)))
+;;             (assoc-ref (car a) 'size))
+;;          (killed-ship? s (cdr a))))))
+
+;; (define (kill-asteroids s a)
+;;   (define (f1 s1 a)
+;;     (cond ((null? a)
+;;        (values a #f))
+;;       (else
+;;        (let ((a1 (car a)))
+;;          (cond ((< (distance-between-points (list (assoc-ref s1 'x) (assoc-ref s1 'y))
+;;                                             (list (assoc-ref a1 'x) (assoc-ref a1 'y)))
+;;                    (assoc-ref a1 'size))
+;;                 (values (cdr a) #t))
+;;                (else
+;;                 (receive (an k) (f1 s1 (cdr a))
+;;                          (values (cons a1 an) k))))))))
+
+;;   (cond ((null? s)
+;;      (values s a))
+;;     (else
+;;      (let ((s1 (car s)))
+;;        (receive (an k) (f1 s1 a)
+;;                 (cond (k
+;;                        (kill-asteroids (cdr s) an))
+;;                       (else
+;;                        (receive (sn an) (kill-asteroids (cdr s) an)
+;;                                 (values (cons s1 sn) an)))))))))
+                          
+
+;; (let ((asteroids #f) (ship #f) (shots #f))
+
+;;   (run-game
+;;    (cond ((killed-ship? ship asteroids)
+;;       (new-game 2)))
+;;    (receive (s a) (kill-asteroids shots asteroids)
+;;         (set! shots s)
+;;         (set! asteroids a))
+;;    (set! asteroids (map move-asteroid asteroids))
+;;    (set! ship (move-ship (alist-copy ship)))
+;;    (let ((shot (ship-shot ship)))
+;;      (cond (shot
+;;         (set! shots (cons shot shots)))))
+;;    (set! shots (move-shots shots))
+;;    (for-each draw-asteroid asteroids)
+;;    (for-each draw-shot shots)
+;;    (draw-ship ship)))