X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=scene.c;h=e5d2a172a92a29f7c790b2897f7de19fe30822bd;hp=0dae69f8dbc37c175d25e5b03744c31748546f85;hb=2a3932dad3ec48310af0b3c3cbb7685fc6105b03;hpb=4beb2e498570ebfb451947a1fb7809c9a2924263

diff --git a/scene.c b/scene.c
index 0dae69f..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)
 {
@@ -552,59 +557,24 @@ motion(int x, int y)
     lightStartY = y;
     glutPostRedisplay();
   }
-}*/
+}
 
 void idle() {
   angle = (int)(angle + 10) % 360;
-    //angle2 = (int)(angle2 + 10) % 360;
-    printf("Angle 1: %f, Angle 2: %f\n", angle, angle2);
-    sleep(25);
-    glutPostRedisplay();
+  //angle2 = (int)(angle2 + 10) % 360;
+  printf("Angle 1: %f, Angle 2: %f\n", angle, angle2);
+  sleep(1);
+  glutPostRedisplay();
 }
 
-/**
- * Draw a floor.
- */
-void drawFloor() {
-  glDisable(GL_LIGHTING);
-
-  //if (useTexture) {
-  //  glEnable(GL_TEXTURE_2D);
-  //}
 
-  /*glBegin(GL_QUADS);
-    glTexCoord2f(0.0, 0.0);
-    glVertex3fv(floorVertices[0]);
-    glTexCoord2f(0.0, 16.0);
-    glVertex3fv(floorVertices[1]);
-    glTexCoord2f(16.0, 16.0);
-    glVertex3fv(floorVertices[2]);
-    glTexCoord2f(16.0, 0.0);
-    glVertex3fv(floorVertices[3]);
-  glEnd();*/
-
-drawSquare(0, -1000, -1000, 1000, 1000);
-
-  /*if (useTexture) {
-    glDisable(GL_TEXTURE_2D);
-  }*/
-
-  glEnable(GL_LIGHTING);
-}
-
-int drawFloorRecurse = 2;
-/*void drawSquare(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) {
-  drawSquare(0, x1, y1, x2, y2);
-}*/
+int drawFloorRecurse = 5;
 
-void drawSquare(int recurseLevel, GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) {
-
-  
+void drawSquare(int recurseLevel, float x1, float y1, float x2, float y2) {
 
   if ( drawFloorRecurse != recurseLevel ) {
-    printf("Recurse level %d\n", recurseLevel);
-    GLfloat xm = (x1 + x2) / 2.0;
-    GLfloat ym = (y1 + y2) / 2.0;
+    float xm = (x1 + x2) / 2.0;
+    float ym = (y1 + y2) / 2.0;
     int rnew = recurseLevel + 1;
 
     // Split into four sub-quads
@@ -612,9 +582,8 @@ void drawSquare(int recurseLevel, GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2
     drawSquare(rnew, x1, ym, xm, y2);
     drawSquare(rnew, xm, ym, x2, y2);
     drawSquare(rnew, xm, y1, x2, ym);
-    
+
   } else {
-    printf("Drawing (%f, %f) -> (%f, %f)\n", x1, y2, x2, y2);
     glBegin(GL_QUADS);
       glVertex3f(x1, 0.0, y1);
       glVertex3f(x1, 0.0, y2);
@@ -625,6 +594,23 @@ void drawSquare(int recurseLevel, GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2
 
 }
 
+/**
+ * Draw a floor.
+ */
+void drawFloor() {
+ 
+drawSquare(0, -100.0, -100.0, 100.0, 100.0);
+
+  /*if (useTexture) {
+    glDisable(GL_TEXTURE_2D);
+  }*/
+
+}
+
+/*void drawSquare(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) {
+  drawSquare(0, x1, y1, x2, y2);
+}*/
+
 /**
  * Display function
  */
@@ -632,11 +618,13 @@ void display() {
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
   glLoadIdentity();
   gluLookAt(
-    0.0, 0.0, 60.0,  /* 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(30.0, 1.0, 0.0, 0.0);
+
   /* Reposition the light source. */
   lightPosition[0] = 12*cos(lightAngle);
   lightPosition[1] = lightHeight;
@@ -645,7 +633,7 @@ void display() {
 
   glPushMatrix();
       /* Perform scene rotations based on user mouse input. */
-    glRotatef(angle2, 1.0, 0.0, 0.0);
+    
     glRotatef(angle, 0.0, 1.0, 0.0);
 
     glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
@@ -657,8 +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();
@@ -667,7 +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();
@@ -687,15 +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);
@@ -740,9 +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();