(no commit message)

diff --git a/games/asteroids/asteroids.scm b/games/asteroids/asteroids.scm
index 84c0ac4d795c65ec9cfa97ff1d2304bb4932889d..756dd73d4e5bf7dd14e4c83af5b8138ca0aa8f8e 100644 (file)
--- a/games/asteroids/asteroids.scm
+++ b/games/asteroids/asteroids.scm
@@ -63,31 +63,20 @@
 
 
 (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)))))
+        (let ((x (- (random (* max-x 2)) max-x))
+              (y (- (random (* max-y 2)) max-y)))
+          (cond ((< (distance-between-points (list x y) '(0 0)) 120)
+                 (init-asteroids n))
+                (else
+                 (let ((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)))