X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=scene.c;h=4e4c5f5e56a9b982581f3e8668feb1369f77a737;hp=c024bf159a1a47b9b8913d3db753d1e9c57b4e92;hb=5fb3d584d42d4502a5d0854fc6d6c9c4be665aa8;hpb=89e90cbd07402f824253fc0a4b2f1cd7e81b31e4

diff --git a/scene.c b/scene.c
index c024bf1..4e4c5f5 100644
--- a/scene.c
+++ b/scene.c
@@ -221,31 +221,50 @@ void mouse(int button, int state, int x, int y) {
 void keyboard(unsigned char key, int x, int y) {
   switch(key) {
     case 'w':
-      camz = camz - 1;
+    case 'W':
+      camz -= factor;
       break;
     case 'a':
-      camx = camx - 1;
+    case 'A':
+      camx -= factor;
       break;
     case 's':
-      camz = camz + 1;
+    case 'S':
+      camz += factor;
       break;
     case 'd':
-      camx = camx + 1;
+    case 'D':
+      camx += factor;
       break;
     case 'q':
-      camy = camy + 1;
+    case 'Q':
+      camy += factor;
       break;
     case 'e':
-      camy = camy - 1;
+    case 'E':
+      camy -= factor;
       break;
     case 'z':
-      rot = rot + 1;
+    case 'Z':
+      keyrot += factor;
       break;
     case 'x':
-      rot = rot - 1;
+    case 'X':
+      keyrot -= factor;
       break;
+    case '=':
+    case '+':
+      factor += 0.1;
+      printf("Factor of change is now %f\n", factor);
+      break;
+    case '-':
+    case '_':
+      factor -= 0.1;
+      printf("Factor of change is now %f\n", factor);
+      break;
+
   }
-  printf("Camera is now at (%f, %f, %f), angle %f\n", camx, camy, camz, rot);
+  printf("Camera is now at (%f, %f, %f), angle %f\n", camx, camy, camz, keyrot);
   glutPostRedisplay();
 }
 
@@ -256,12 +275,19 @@ void keyboard(unsigned char key, int x, int y) {
  */
 void motion(int x, int y) {
   if (moving) {
-    zoomFactor += (x - startx);
-    rotateFactor += (y - starty);
+    zoom += (y - starty);
+    rotate += (x - startx);
     startx = x;
     starty = y;
     glutPostRedisplay();
   }
+  if (lightMoving) {
+    lightAngle += (x - lightStartX)/40.0;
+    lightHeight += (lightStartY - y)/20.0;
+    lightStartX = x;
+    lightStartY = y;
+    glutPostRedisplay();
+  }
 }
 
 /**
@@ -292,19 +318,25 @@ void display() {
   glLoadIdentity();
 
   gluLookAt(
-    0.0,  0.0,  5.0 + zoomFactor,  /* eye is at (x,y,z) */
+    0.0,  0.0,  5.0 + (zoom*zoomFactor),  /* eye is at (x,y,z) */
     0.0,  0.0,  0.0,  /* center is at (x,y,z) */
     0.0,  1.0,  0.0   /* up is in postivie Y direction */
     );
 
-  glRotatef(75.0, 1.0, 0.0, 0.0);
+  glRotatef(50.0, 1.0, 0.0, 0.0);
+
+  /* Reposition the light source. */
+  lightPosition[0] = 12*cos(lightAngle);
+  lightPosition[1] = lightHeight;
+  lightPosition[2] = 12*sin(lightAngle);
+  lightPosition[3] = 0.0;
 
   glPushMatrix();
 
     /* Perform scene rotations based on user mouse/keyboard input. */
-    glRotatef(rotateFactor, 0.0, 0.0, 1.0);
-    //glTranslatef(camx, camy, camz);
-    //glRotatef(rot, 1.0, 0.0, 0.0);
+    glRotatef(rotate*rotateFactor, 0.0, 1.0, 0.0);
+    glTranslatef(camx, camy, camz);
+    glRotatef(keyrot, 1.0, 0.0, 0.0);
 
     glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
 
@@ -339,7 +371,6 @@ void display() {
  * init function; sets initial OpenGL state
  */
 void init() {
-  glLightfv(GL_LIGHT0, GL_POSITION, light0_pos);
   glLightfv(GL_LIGHT0, GL_AMBIENT, ambient0);
   glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse0);
   glLightfv(GL_LIGHT0, GL_SPECULAR, specular0);