From: jsancho <devnull@localhost>
Date: Sun, 20 Dec 2009 23:23:49 +0000 (+0000)
Subject: (no commit message)
X-Git-Url: https://git.jsancho.org/?a=commitdiff_plain;h=3c076309ea8727753bf689c3524d20116f45a0a3;hp=b759213b0c812ba0ea93034420271ec77edd1e8d;p=gacela.git

---

diff --git a/gacela.lisp b/gacela.lisp
index 895bb38..73bc880 100644
--- a/gacela.lisp
+++ b/gacela.lisp
@@ -266,8 +266,7 @@
     (setq running t)
     (do () ((quit?))
 	(glClear (+ GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT))
-	(glLoadIdentity)
-;(gluLookAt 0 0 50 0 0 0 0 1 0)
+	(to-origin)
 	(when (functionp game-code) (funcall game-code))
 	(SDL_GL_SwapBuffers)
 	(delay-frame)
diff --git a/gacela_draw.lisp b/gacela_draw.lisp
index dae68d4..15b61e0 100644
--- a/gacela_draw.lisp
+++ b/gacela_draw.lisp
@@ -168,4 +168,14 @@
   (glRotatef rot 0 0 1))
 
 (defun to-origin ()
-  (glLoadIdentity))
+  (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))))