X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=games%2Fasteroids%2Fasteroids.scm;h=902fd549bec2825b5b5d52961b601510c1f33edb;hb=e435ee14c06537860a24930e8d8372c77bc96b4d;hp=c36ae0569b90ab23f200a7cedd41834960b44d76;hpb=cb2786421d0ccb887eccacaafc42ae310535cf3a;p=gacela.git

diff --git a/games/asteroids/asteroids.scm b/games/asteroids/asteroids.scm
index c36ae05..902fd54 100644
--- a/games/asteroids/asteroids.scm
+++ b/games/asteroids/asteroids.scm
@@ -1,134 +1,44 @@
-(set-game-properties! #:title "Gacela 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 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 (make-asteroids n)
-  (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 (killed-ship? s a)
-  (cond ((null? a) #f)
-	(else
-	 (or (< (sqrt (+ (expt (- (assoc-ref s 'x) (assoc-ref (car a) 'x)) 2)
-			 (expt (- (assoc-ref s 'y) (assoc-ref (car a) 'y)) 2)))
-		(assoc-ref (car a) 'size))
-	     (killed-ship? s (cdr a))))))
-
-(define (kill-asteroids s a)
-  (cond ((or (null? s) (null? a)) (values s a))
-	(else
-	 (let ((s1 (car s)) (a1 (car a)))
-	   (cond ((or (< (sqrt (+ (expt (- (assoc-ref 
-
-(let ((asteroids #f) (ship #f) (shots #f))
-  (define (new-game n)
-    (set! asteroids (make-asteroids n))
-    (set! ship '((x . 0) (y . 0) (angle . 0) (moving . #f)))
-    (set! shots '()))
-
-  (new-game 2)
-
-  (run-game
-   (cond ((killed-ship? ship asteroids)
-	  (new-game 2)))
-   (set! asteroids (map move-asteroid asteroids))
-   (set! ship (move-ship 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)))
+;;; Gacela, a GNU Guile extension for fast games development
+;;; Copyright (C) 2014 by Javier Sancho Fernandez <jsf at jsancho dot org>
+;;;
+;;; This program is free software: you can redistribute it and/or modify
+;;; it under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation, either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; This program is distributed in the hope that it will be useful,
+;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+(define-module (gacela examples asteroids))
+;  #:use-module (gacela game))
+
+
+(define asteroids (game "Asteroids"))
+(define player (entity))
+(set! player (add-component player (name "player")))
+(set! player (add-component player (transform)))
+(set! player (add-component player (mesh)))
+(set! asteroids (add-entity asteroids player))
+(define rock (entity))
+(set! rock (add-component rock (name "rock")))
+(set! rock (add-component rock (transform)))
+(set! rock (add-component rock (mesh)))
+(set! asteroids (add-entity asteroids rock))
+
+
+(define asteroids
+  (game "Asteroids"
+   (entity
+    (name "player")
+    (transform)
+    (mesh))
+   (entity
+    (name "rock")
+    (transform)
+    (mesh))))