X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=scene.c;h=e5d2a172a92a29f7c790b2897f7de19fe30822bd;hp=92c7482d14d224ecb25c9c5bb92758e1e8d67227;hb=2a3932dad3ec48310af0b3c3cbb7685fc6105b03;hpb=ccfbc5f4ffa0ae96d7c3ebc4facd893c343cd54e

diff --git a/scene.c b/scene.c
index 92c7482..e5d2a17 100644
--- a/scene.c
+++ b/scene.c
@@ -125,10 +125,15 @@ int lightMoving = 0, lightStartX, lightStartY;
 
 /* Time varying or user-controled variables. */
 static float jump = 0.0;
-static float lightAngle = 0.0, lightHeight = 20;
+static float lightAngle = 0.0, lightHeight = 5;
 GLfloat angle = -150;   /* in degrees */
 GLfloat angle2 = 30;   /* in degrees */
 
+GLfloat near = -10;
+GLfloat far = 10;
+
+static float zoomFactor = 1.0;
+
 /**
  * Prints out error message when file cannot be read
  * @param fileName Name of file that could not be read
@@ -484,18 +489,18 @@ void makeMenu() {
  * @param h New height
  */
 void windowReshape(int w, int h) {
-  GLdouble near = -1000.0;
-  GLdouble far = 1000.0;
-
   glViewport(0, 0, (GLsizei) w, (GLsizei) h);
   glMatrixMode(GL_PROJECTION);
   glLoadIdentity();
+  GLfloat x = 2.0f*(200 + 0.5)/w-1.0;
+  GLfloat y = 2.0f*(200 + 0.5)/h-1.0;
+  glTranslatef(-x,-y,0.0f);
   if (w <= h) 
-    glOrtho(near, far, near*(GLfloat)h/(GLfloat)w,
-             far*(GLfloat)h/(GLfloat)w, near, far);
+    glOrtho(zoomFactor*near, zoomFactor*far, zoomFactor*near*(GLfloat)h/(GLfloat)w,
+             zoomFactor*far*(GLfloat)h/(GLfloat)w, near, far);
   else
-    glOrtho(near*(GLfloat)w/(GLfloat)h,
-             far*(GLfloat)w/(GLfloat)h, near, far, near, far);
+    glOrtho(zoomFactor*near*(GLfloat)w/(GLfloat)h,
+             zoomFactor*far*(GLfloat)w/(GLfloat)h, zoomFactor*near, zoomFactor*far, near, far);
    glMatrixMode(GL_MODELVIEW); 
    glLoadIdentity();
 }
@@ -509,7 +514,7 @@ void windowReshape(int w, int h) {
  */
 /*void mouse(int btn, int state, int x, int y) {
   
-}*//*
+}*/
 static void
 mouse(int button, int state, int x, int y)
 {
@@ -552,7 +557,7 @@ motion(int x, int y)
     lightStartY = y;
     glutPostRedisplay();
   }
-}*/
+}
 
 void idle() {
   angle = (int)(angle + 10) % 360;
@@ -594,7 +599,7 @@ void drawSquare(int recurseLevel, float x1, float y1, float x2, float y2) {
  */
 void drawFloor() {
  
-drawSquare(0, -1000.0, -1000.0, 1000.0, 1000.0);
+drawSquare(0, -100.0, -100.0, 100.0, 100.0);
 
   /*if (useTexture) {
     glDisable(GL_TEXTURE_2D);
@@ -613,12 +618,12 @@ void display() {
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
   glLoadIdentity();
   gluLookAt(
-    0.0, 0.0, 30.0,  /* eye is at (x,y,z) */
+    0.0, 0.0, 10.0,  /* 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(20.0, 1.0, 0.0, 0.0);
+  glRotatef(30.0, 1.0, 0.0, 0.0);
 
   /* Reposition the light source. */
   lightPosition[0] = 12*cos(lightAngle);
@@ -640,8 +645,8 @@ void display() {
 
     glPushMatrix();
     
-      //glTranslatef(0.0, 0.0, 0.0);
-      glutWireTeapot(30); // Draw teapot for test
+      glTranslatef(0.0, 1.0, 0.0);
+      glutWireTeapot(1); // Draw teapot for test
     glPopMatrix();
 
     glPushMatrix();
@@ -650,7 +655,7 @@ void display() {
 
       /* Draw a yellow ball at the light source. */
       glTranslatef(lightPosition[0], lightPosition[1], lightPosition[2]);
-      glutSolidSphere(1.0, 5, 5);
+      glutSolidSphere(1.0, 50, 50);
 
       glEnable(GL_LIGHTING);
     glPopMatrix();
@@ -670,15 +675,21 @@ void init() {
   gluPerspective(
        60.0,  /* field of view in degree */
         1.0,  /* aspect ratio */
-    -1000.0,  /* Z near */
-     1000.0   /* Z far */
+     near,  /* Z near */
+     far   /* Z far */
     );    
 
-  glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, 1);
-  glLightfv(GL_LIGHT0, GL_DIFFUSE, lightColor);
-  glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, 0.1);
-  glLightf(GL_LIGHT0, GL_LINEAR_ATTENUATION, 0.05);
-  glEnable(GL_LIGHT0);
+
+GLfloat diffuse0[] = {1.0, 1.0, 1.0, 1.0};
+GLfloat ambient0[] = {1.0, 1.0, 1.0, 1.0};
+GLfloat specular0[] = {1.0, 1.0, 1.0, 1.0};
+GLfloat light0_pos[] ={ 1.0, 2.0, 3,0, 1.0};
+
+glEnable(GL_LIGHT0);
+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);
   glEnable(GL_LIGHTING);
 
   glMatrixMode(GL_MODELVIEW);
@@ -723,9 +734,9 @@ int main(int argc, char **argv) {
 
   glutReshapeFunc(windowReshape);
   glutDisplayFunc(display);
-  //glutMouseFunc(mouse);
-  //glutMotionFunc(motion);
-  glutIdleFunc(idle);
+  glutMouseFunc(mouse);
+  glutMotionFunc(motion);
+  //glutIdleFunc(idle);
 
   makeMenu();