From: Ash Tyndall <git@atyndall.net>
Date: Fri, 21 Oct 2011 03:09:14 +0000 (+0800)
Subject: (no commit message)
X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=commitdiff_plain;h=5eb90acec725198d090e065c1bdc7d41dd4ce02b

---

diff --git a/globals.c b/globals.c
index 374d8b3..a567458 100644
--- a/globals.c
+++ b/globals.c
@@ -70,7 +70,8 @@ int drawFloorRecurse = 8;
 int floorSize = 200;
 
 /* Current camera x, y, z coords */
-GLfloat camx = 0.0, camy = 0.0, camz = 0.0, rot = 0.0;
+GLfloat camx = 0.0, camy = 0.0, camz = 0.0, keyrot = 0.0;
+GLfloat factor = 1.0;
 
 /* Length of axis lines */
 GLfloat lineLength = 5;
@@ -82,7 +83,6 @@ GLfloat specular0[]={1.0, 0.0, 0.0, 1.0};
 GLfloat emission0[] = {0.0, 0.3, 0.3, 1.0};
 
 GLfloat direction0[] = {0.0, 0.0, 0.0};
-GLfloat light0_pos[] ={1.0, 1.0, 0,0, 0.5};
 
 GLfloat shine = 100.0;
 
@@ -94,7 +94,8 @@ GLfloat diffuse[] = {1.0, 0.8, 0.0, 1.0};
 GLfloat specular[] = {1.0, 1.0, 1.0, 1.0};
 
 /* Zoom and rotate tracking */
-GLfloat zoomFactor = 0.0, rotateFactor = 0.0;
+GLfloat zoom = 0.0, rotate = 0.0;
+GLfloat zoomFactor = 0.5, rotateFactor = 0.5;
 
 /* Beginning width, height */
 int width = 500, height = 500;
\ No newline at end of file
diff --git a/globals.h b/globals.h
index dc92453..b6e0454 100644
--- a/globals.h
+++ b/globals.h
@@ -60,7 +60,8 @@ extern int drawFloorRecurse;
 extern int floorSize;
 
 /* Current camera position */
-extern GLfloat camx, camy, camz, rot;
+extern GLfloat camx, camy, camz, keyrot;
+extern GLfloat factor;
 
 /* Length of axis lines */
 extern GLfloat lineLength;
@@ -87,6 +88,7 @@ extern GLfloat specular[];
 extern int width, height;
 
 /* Zoom and rotate tracking */
-GLfloat zoomFactor, rotateFactor;
+extern GLfloat zoom, rotate;
+extern GLfloat zoomFactor, rotateFactor;
 
 #endif	/* GLOBALS_H */
\ No newline at end of file
diff --git a/scene.c b/scene.c
index db6b635..a02ae84 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();
 }
 
@@ -256,8 +275,8 @@ void keyboard(unsigned char key, int x, int y) {
  */
 void motion(int x, int y) {
   if (moving) {
-    zoomFactor += (y - starty);
-    rotateFactor += (x - startx);
+    zoom += (y - starty);
+    rotate += (x - startx);
     startx = x;
     starty = y;
     glutPostRedisplay();
@@ -298,15 +317,8 @@ void display() {
   glMatrixMode(GL_MODELVIEW);
   glLoadIdentity();
 
-  GLfloat zcoord = 5.0 + (zoomFactor*0.2);
-  if ( zcoord < 0.0 ) {
-    printf("zf: %f", zoomFactor);
-    zcoord = 0.0;
-    zoomFactor = 0.0;
-  }
-
   gluLookAt(
-    0.0,  0.0,  zcoord,  /* 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 */
     );
@@ -319,16 +331,12 @@ void display() {
   lightPosition[2] = 12*sin(lightAngle);
   lightPosition[3] = 0.0;
 
-
-    //glRotatef(angle, 0.0, 1.0, 0.0);
-   // glRotatef(angle2, 1.0, 0.0, 0.0);
-
   glPushMatrix();
 
     /* Perform scene rotations based on user mouse/keyboard input. */
-    glRotatef(rotateFactor*0.5, 0.0, 1.0, 0.0);
-    //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);
 
@@ -363,7 +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);