#include "../include/animorph/TextureVector.h"

using namespace std;
using namespace Animorph;

void TextureVector::fromUVStream (ifstream &in_stream)
{
  unsigned int nr_uv_coord;
  int n = 0;
  char buffer[MAX_LINE_BUFFER];
  float v[4], u[4];
  TextureVector &texture_vector = (*this);

  while (in_stream.getline (buffer, MAX_LINE_BUFFER))
  {
    nr_uv_coord = sscanf (buffer, "%f %f %f %f %f %f %f %f\n",
                          &u[0], &v[0], &u[1], &v[1], &u[2], &v[2], &u[3], &v[3]);


    TextureFace texture_face;

    if (nr_uv_coord == 6)
    {
        texture_face.push_back (Vector2f(u[0], v[0]));
        texture_face.push_back (Vector2f(u[1], v[1]));
        texture_face.push_back (Vector2f(u[2], v[2]));
    }
    else if (nr_uv_coord == 8)
    {
        texture_face.push_back (Vector2f(u[0], v[0]));
        texture_face.push_back (Vector2f(u[1], v[1]));
        texture_face.push_back (Vector2f(u[2], v[2]));
        texture_face.push_back (Vector2f(u[3], v[3]));
    }

    texture_vector.push_back (texture_face);

    n++;
  }
}

bool TextureVector::load (const string& filename)
{
  FileReader file_reader;

  file_reader.open (filename);

  if (!file_reader)
    return false;

  fromUVStream (file_reader);

  return true;
}