;;; You should have received a copy of the GNU General Public License
;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
-(in-package :gacela)
+
+(eval-when (compile load eval)
+ (when (not (find-package 'gacela)) (make-package 'gacela :nicknames '(gg) :use '(lisp)))
+ (in-package 'gacela :nicknames '(gg) :use '(lisp)))
+
(defmacro with-color (color &body code)
- `(let ((original-color (get-current-color)))
- (apply #'set-current-color ,color)
- ,@code
- (apply #'set-current-color original-color)))
+ (cond (color
+ `(let ((original-color (get-current-color)))
+ (apply #'set-current-color ,color)
+ ,@code
+ (apply #'set-current-color original-color)))
+ (t
+ `(progn
+ ,@code))))
(defmacro progn-textures (&body code)
`(let (values)
(draw-rectangle (* f width) (* f height) :texture texture)))))))
(defun draw-quad (v1 v2 v3 v4 &key texture)
- (cond (texture
+ (cond ((consp texture) (with-color texture (draw v1 v2 v3 v4)))
+ (texture
(progn-textures
(glBindTexture GL_TEXTURE_2D (getf (get-resource texture) :id-texture))
(begin-draw 4)
(defun draw-square (&key (size 1) texture)
(draw-rectangle size size :texture texture))
-(defun draw-cube (&key size texture texture-1 texture-2 texture-3 texture-4 texture-5 texture-6)
+(defun draw-cube (&key (size 1) texture texture-1 texture-2 texture-3 texture-4 texture-5 texture-6)
(let ((-size (neg size)))
(progn-textures
(glNormal3f 0 0 1)
(defun translate (x y &optional (z 0))
(glTranslatef x y z))
-(defun rotate (xrot yrot zrot)
+(defun rotate (&rest rot)
+ (cond ((3d-mode?) (apply #'3d-rotate rot))
+ (t (apply #'2d-rotate rot))))
+
+(defun 3d-rotate (xrot yrot zrot)
(glRotatef xrot 1 0 0)
(glRotatef yrot 0 1 0)
(glRotatef zrot 0 0 1))
(defun 2d-rotate (rot)
- (rotate 0 0 rot))
\ No newline at end of file
+ (glRotatef rot 0 0 1))
+
+(defun to-origin ()
+ (glLoadIdentity)
+ (cond ((3d-mode?) (camera-look))))
+
+(let ((camera-eye '(0 0 0)) (camera-center '(0 0 -100)) (camera-up '(0 1 0)))
+ (defun set-camera (&key eye center up)
+ (cond (eye (setq camera-eye eye)))
+ (cond (center (setq camera-center center)))
+ (cond (up (setq camera-up up))))
+
+ (defun camera-look ()
+ (apply #'gluLookAt (concatenate 'list camera-eye camera-center camera-up))))