/*************************************************************************
  FILE:   geometry.cc
          Functions creating the geometry of the objects in the scene and 
          drawing them.

  Author: Dana Vrajitoru, IUSB
  Class:  C481 B581 Computer Graphics
**************************************************************************/

#include <fstream>
#include <iostream>
using namespace std;
#include "glheader.h"
#include "geometry.h"

// Read .raw file as a triangle strip
void loadRawFile(char *filename)
{
    ifstream fin;
    float x, y, z;
    int   i = 0;
    char  txt[25];
    
    fin.open(filename);
    glNewList(MESH_ID, GL_COMPILE);
    
    do 
    {
        fin >> x >> y >> z;
        glColor3f(i%2, i/(9.0f), 0);
        glBegin(GL_TRIANGLES);
        i++;
        while(fin.good()) // stop when we find a text comment
        {
            glVertex3f(x, y, z);
            fin >> x >> y >> z;
        }
        glEnd();         // and start a new triangle strip
        fin.clear();
        fin >> txt;      // the comment 
    } while(fin.good());
    
    glEndList();
    fin.close();
}

// a version of drawing the window that uses the display list
void draw1()
{
    glCallList(MESH_ID);
}