;;; along with this program. If not, see <http://www.gnu.org/licenses/>.
-(in-package :gacela)
+(in-package :gacela :nicknames '(gg))
;;; Default values for Gacela
(defvar *width-screen* 640)
;;; Video Subsystem
-(defstruct surface address clip-w clip-h shape)
-
-(let (screen flags)
+(let (screen flags current-width current-height)
(defun init-video-mode (&key (width *width-screen*) (height *height-screen*) (bpp *bpp-screen*))
(cond ((null screen)
(if (= (getf (SDL_GetVideoInfo) :blit_hw) 0) 0 SDL_HWACCEL)))
(setq screen (SDL_SetVideoMode width height bpp flags))
(init-GL)
- (resize-screen-GL width height))
+ (resize-screen-GL width height)
+ (setq current-width width current-height height))
(t t)))
(defun resize-screen (width height bpp)
(setq screen (SDL_SetVideoMode width height bpp flags))
- (resize-screen-GL width height))
+ (resize-screen-GL width height)
+ (setq current-width width current-height height))
+
+ (defun apply-mode-change ()
+ (resize-screen-GL current-width current-height))
(defun fill-screen (color)
(init-video-mode)
(defun quit-video-mode ()
(setq screen nil)))
+(let ((mode '2d))
+ (defun set-2d-mode ()
+ (cond ((3d-mode?)
+ (setq mode '2d)
+ (init-video-mode)
+ (glDisable GL_DEPTH_TEST)
+ (apply-mode-change))))
+
+ (defun set-3d-mode ()
+ (cond ((not (3d-mode?))
+ (setq mode '3d)
+ (init-video-mode)
+ (glEnable GL_DEPTH_TEST)
+ (apply-mode-change))))
+
+ (defun 3d-mode? ()
+ (eq mode '3d)))
(defun init-GL ()
- (2d-mode)
(glShadeModel GL_SMOOTH)
(glClearColor 0 0 0 0)
(glClearDepth 1)
(glEnable GL_LIGHTING))
(defun resize-screen-GL (width height)
- (let ((ratio (if (= height 0) width (/ width height))))
-; (glViewPort 0 0 width height)
- (glMatrixMode GL_PROJECTION)
- (glLoadIdentity)
- (let* ((w (/ width 2)) (-w (neg w)) (h (/ height 2)) (-h (neg h)))
- (glOrtho -w w -h h 0 1))
-; (gluPerspective 45 ratio 0.1 100)
- (glMatrixMode GL_MODELVIEW)
- (glLoadIdentity)
- t))
+ (glViewPort 0 0 width height)
+ (glMatrixMode GL_PROJECTION)
+ (glLoadIdentity)
+ (cond ((3d-mode?) (let ((ratio (if (= height 0) width (/ width height))))
+ (gluPerspective 45 ratio 0.1 100))) ;0.1
+ (t (let* ((w (/ width 2)) (-w (neg w)) (h (/ height 2)) (-h (neg h)))
+ (glOrtho -w w -h h 0 1))))
+ (glMatrixMode GL_MODELVIEW)
+ (glLoadIdentity)
+ t))
(let ((current-color '(1 1 1 1)))
(defun get-current-color ()
(caddr transparent-color)))
optimized-image)))))))
-(defun load-image2 (image-file &key (transparent-color nil))
- (let ((address-image (load-image image-file :transparent-color transparent-color)))
- (list
- (lambda (x y) (print-surface x y address-image))
- (lambda () (SDL_FreeSurface address-image)))))
-
-(defun clean-screen ()
- (fill-screen *background-color*))
-
-(defun refresh-screen ()
- (clean-screen)
- (funcall-procs #'print-mob)
- (flip))
-
;;; Audio Subsystem
(let ((audio nil))
(maphash (lambda (key res) (free-resource key)) resources-table)))
-;;; Gacela Server for development mode
-(let (socket clients)
- (defun start-server (port)
- (when (null socket) (setq socket (si::socket port :server #'eval-from-clients))))
+;;; Connection with Gacela Skin
+(let (socket)
+ (defun start-skin-client (port)
+ (when (null socket) (setq socket (si::socket port :host "localhost"))))
- (defun check-server-connections ()
- (when (and socket (si::listen socket)) (push (si:accept socket) clients)))
+ (defun eval-from-skin ()
+ (when (si::listen socket)
+ (secure-block socket (eval (read socket)))))
- (defun eval-from-clients ()
- (dolist (cli clients)
- (when (si::listen cli)
- (secure-block cli (eval (read cli))))))
-
- (defun stop-server ()
+ (defun stop-skin-client ()
(when socket
- (dolist (cli clients) (si::close cli))
(si::close socket)
- (setq socket nil clients nil))))
+ (setq socket nil))))
;;; GaCeLa Functions
(let ((frame-time (- (SDL_GetTicks) time)))
(cond ((< frame-time time-per-frame)
(SDL_Delay (- time-per-frame frame-time)))))))
-
+
(defmacro run-game (title &body code)
- `(progn
+ `(let ((game-function (lambda () ,@code)))
(init-video-mode)
(SDL_WM_SetCaption ,title "")
- (init-frame-time)
- (check-server-connections)
- (eval-from-clients)
- (refresh-running-mobs)
- (process-events)
- (do () ((quit?))
- (glClear (+ GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT))
- (logic-mobs)
- (render-mobs)
- (glLoadIdentity)
- ,@code
- (SDL_GL_SwapBuffers)
- (delay-frame)
- (init-frame-time)
- (check-server-connections)
- (eval-from-clients)
- (refresh-running-mobs)
- (process-events)
- (setq running nil))))
+ (set-game-code game-function)
+ (cond ((not (game-running?))
+ (init-frame-time)
+ (process-events)
+ (game-loop)))))
+
+(let (running game-code)
+ (defun game-loop ()
+ (setq running t)
+ (do () ((quit?))
+ (glClear (+ GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT))
+ (glLoadIdentity)
+ (when (functionp game-code) (funcall game-code))
+ (SDL_GL_SwapBuffers)
+ (delay-frame)
+ (init-frame-time)
+ (eval-from-skin)
+ (process-events))
+ (setq running nil))
+
+ (defun game-running? ()
+ running)
+
+ (defun set-game-code (game-function)
+ (setq game-code game-function)))
(defun quit-game ()
(free-all-resources)