/*********************************************************************************
* Draw 'beethovan' object.
**********************************************************************************/
void drawBet()
{
glPushMatrix();
glMultMatrixd(bet2wld.GLmatrix());
drawFrame(8);
float frontColor[] = {0.8, 0.3, 0.1, 1.0};
glEnable(GL_LIGHTING);
glMaterialfv(GL_FRONT, GL_AMBIENT, frontColor);
glMaterialfv(GL_FRONT, GL_DIFFUSE, frontColor);
glCallList(betID);
glPopMatrix();
}
/*********************************************************************************
* Draw 'cow' object.
**********************************************************************************/
void drawCow(matrix4 const& _cow2wld, bool drawBB)
{
glPushMatrix(); // Push the current matrix of GL into stack. This is because the matrix of GL will be change while drawing cow.
// The information about location of cow to be drawn is stored in cow2wld matrix.
// (Project2 hint) If you change the value of the cow2wld matrix or the current matrix, cow would rotate or move.
glMultMatrixd(_cow2wld.GLmatrix());
drawFrame(5); // Draw x, y, and z axis.
float frontColor[] = {0.8, 0.2, 0.9, 1.0};
glEnable(GL_LIGHTING);
glMaterialfv(GL_FRONT, GL_AMBIENT, frontColor); // Set ambient property frontColor.
glMaterialfv(GL_FRONT, GL_DIFFUSE, frontColor); // Set diffuse property frontColor.
glCallList(cowID); // Draw cow.
glDisable(GL_LIGHTING);
if(drawBB){
glBegin(GL_LINES);
glColor3d(1,1,1);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmax.z);
glColor3d(1,1,1);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmax.z);
glColor3d(1,1,1);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmax.z);
glColor3d(1,1,1);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmax.z);
glColor3d(1,1,1);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmin.y, cow->bbmax.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmin.x, cow->bbmax.y, cow->bbmax.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmin.z);
glVertex3d( cow->bbmax.x, cow->bbmax.y, cow->bbmax.z);
glEnd();
}
glPopMatrix(); // Pop the matrix in stack to GL. Change it the matrix before drawing cow.
}