(no commit message)

[atyndall/cits2231.git] / scene.c

diff --git a/scene.c b/scene.c
index 2746652..f86adf2 100644 (file)
--- a/scene.c
+++ b/scene.c
@@ -184,16 +184,16 @@ void makeMenu() {
  */\r
 void windowReshape(int w, int h) {\r
   glViewport(0, 0, (GLsizei) w, (GLsizei) h);\r
-  glMatrixMode(GL_PROJECTION);\r
+  /*glMatrixMode(GL_PROJECTION);\r
   glLoadIdentity();\r
   if (w <= h) \r
-    glOrtho(near, far, near*(GLfloat)h/(GLfloat)w,\r
-             far*(GLfloat)h/(GLfloat)w, near, far);\r
+    glFrustum(near, far, near*(GLfloat)h/(GLfloat)w,\r
+             far*(GLfloat)h/(GLfloat)w, -100, 100);\r
   else\r
-    glOrtho(near*(GLfloat)w/(GLfloat)h,\r
-             far*(GLfloat)w/(GLfloat)h, near, far, near, far);\r
-   glMatrixMode(GL_MODELVIEW); \r
-   glLoadIdentity();\r
+    glFrustum(near*(GLfloat)w/(GLfloat)h,\r
+             far*(GLfloat)w/(GLfloat)h, near, far, nearClip, farClip);\r
+   glMatrixMode(GL_MODELVIEW);\r
+   glLoadIdentity();*/\r
 }\r
 \r
 /**\r
@@ -226,6 +226,47 @@ void mouse(int button, int state, int x, int y) {
   }\r
 }\r
 \r
+/**\r
+ * Keybord event handler\r
+ * w/s increase/decrease the z\r
+ * a/d increase/decrease the x\r
+ * q/e increase/decrease the y\r
+ * z/x increase/decrease the angle\r
+ * @param key Key pressed\r
+ * @param x x co-ordinate of mouse\r
+ * @param y y co-ordinate of mouse\r
+ */\r
+void keyboard(unsigned char key, int x, int y) {\r
+  switch(key) {\r
+    case 'w':\r
+      camz = camz - 1;\r
+      break;\r
+    case 'a':\r
+      camx = camx - 1;\r
+      break;\r
+    case 's':\r
+      camz = camz + 1;\r
+      break;\r
+    case 'd':\r
+      camx = camx + 1;\r
+      break;\r
+    case 'q':\r
+      camy = camy + 1;\r
+      break;\r
+    case 'e':\r
+      camy = camy - 1;\r
+      break;\r
+    case 'z':\r
+      rot = rot + 1;\r
+      break;\r
+    case 'x':\r
+      rot = rot - 1;\r
+      break;\r
+  }\r
+  printf("Camera is now at (%f, %f, %f), angle %f\n", camx, camy, camz, rot);\r
+  glutPostRedisplay();\r
+}\r
+\r
 /**\r
  * Called when motion event occurs\r
  * @param x Mouse x position\r
@@ -254,16 +295,17 @@ void motion(int x, int y) {
 void display() {\r
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);\r
   glLoadIdentity();\r
-  gluLookAt(\r
-    0.0, 0.0, 10.0,  /* eye is at (x,y,z) */\r
-    0.0, 0.0,  0.0,  /* center is at (x,y,z) */\r
-    0.0, 1.0,  0.0   /* up is in postivie Y direction */\r
-    );\r
-\r
+  //gluLookAt(\r
+  //  0.0, 0.0, 30.0,  /* eye is at (x,y,z) */\r
+  //  0.0, 0.0,  0.0,  /* center is at (x,y,z) */\r
+  //  0.0, 1.0,  0.0   /* up is in postivie Y direction */\r
+   // );\r
 \r
+  //glTranslatef(camx, camy, camz);\r
+  \r
   // **NOTE: Currently this rotation function is all that moves the camera off\r
   //         the flat surface. Need to integrate function into gluLookAt\r
-  glRotatef(30.0, 1.0, 0.0, 0.0);\r
+  //glRotatef(rot, 1.0, 0.0, 0.0);\r
 \r
   /* Reposition the light source. */\r
   lightPosition[0] = 12*cos(lightAngle);\r
@@ -275,7 +317,7 @@ void display() {
 \r
     /* Perform scene rotations based on user mouse input. */\r
     glRotatef(angle, 0.0, 1.0, 0.0);\r
-    //glRotatef(angle2, 1.0, 0.0, 0.0); **NOTE: Only one degree of freedom\r
+    glRotatef(angle2, 1.0, 0.0, 0.0); //**NOTE: Only one degree of freedom\r
 \r
     glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);\r
 \r
@@ -285,9 +327,9 @@ void display() {
     \r
     // Draw teapot for a test object\r
     glPushMatrix();\r
-      glTranslatef(0.0, 0.5, 0.0); // **NOTE: Teapot does not rest on surface\r
+      glTranslatef(0.0, 1.0, 0.0); // **NOTE: Teapot does not rest on surface\r
       glColor3f(0.5, 0.5, 0.5);\r
-      glutSolidTeapot(1);\r
+      glutSolidTeapot(25);\r
     glPopMatrix();\r
 \r
     // Draw a white ball over the light source\r
@@ -308,17 +350,19 @@ void display() {
  * init function; sets initial OpenGL state\r
  */\r
 void init() {\r
-  glMatrixMode(GL_PROJECTION);\r
+  //glMatrixMode(GL_PROJECTION);\r
+  //glLoadIdentity();\r
+\r
+   //gluPerspective(\r
+   // 60.0,  /* field of view in degree */\r
+   //  1.0,  /* aspect ratio */\r
+   // nearClip,  /* Z near */\r
+    // farClip   /* Z far */\r
+   // );\r
+  \r
+  glMatrixMode(GL_MODELVIEW);\r
   glLoadIdentity();\r
 \r
-  gluPerspective(\r
-    60.0,  /* field of view in degree */\r
-     1.0,  /* aspect ratio */\r
-    near,  /* Z near */\r
-     far   /* Z far */\r
-    );\r
-\r
-  \r
   glLightfv(GL_LIGHT0, GL_POSITION, light0_pos);\r
   glLightfv(GL_LIGHT0, GL_AMBIENT, ambient0);\r
   glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse0);\r
@@ -333,8 +377,6 @@ void init() {
 \r
   \r
 \r
-  glMatrixMode(GL_MODELVIEW);\r
-  glLoadIdentity();\r
 }\r
 \r
 /**\r
@@ -371,11 +413,21 @@ int main(int argc, char **argv) {
   glEnable(GL_TEXTURE_2D);\r
   glLineWidth(1.0);\r
 \r
+    glMatrixMode(GL_PROJECTION);\r
+  gluPerspective( /* field of view in degree */ 40.0,\r
+  /* aspect ratio */ 1.0,\r
+    /* Z near */ 20.0, /* Z far */ 100.0);\r
+  glMatrixMode(GL_MODELVIEW);\r
+  gluLookAt(0.0, 8.0, 60.0,  /* eye is at (0,8,60) */\r
+    0.0, 8.0, 0.0,      /* center is at (0,8,0) */\r
+    0.0, 1.0, 0.);      /* up is in postivie Y direction */\r
+\r
   glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);\r
 \r
   glutReshapeFunc(windowReshape);\r
   glutDisplayFunc(display);\r
   glutMouseFunc(mouse);\r
+  glutKeyboardFunc(keyboard);\r
   glutMotionFunc(motion);\r
 \r
   makeMenu();\r