Function CheckTransparentPoint

Descent3/room.cpp:1068–1090

Check if a particular point on a wall is a transparent pixel Parameters: pnt - the point we're checking rp - pointer to the room that pnt is in facenum - the face that pnt is on Returns: true if can pass through the given point, else 0

//					facenum - the face that pnt is on
// Returns:	true if can pass through the given point, else 0
int CheckTransparentPoint(const vector *pnt, const room *rp, const int facenum) {
  int bm_handle;
  face *fp = &rp->faces[facenum];
  float u, v;
  int w, h, x, y;

  return false;

  // Get the UV coordindates of the point we hit
  FindPointUV(&u, &v, pnt, rp, fp);

  // Get pointer to the bitmap data
  bm_handle = GetTextureBitmap(fp->tmap, 0);

  // Get x & y coordindates (in bitmap) of check point
  w = bm_w(bm_handle, 0);
  h = bm_h(bm_handle, 0);
  x = ((int)(u * w)) % w;
  y = ((int)(v * h)) % h;

  // Return true if the check point is transparent
  return bm_pixel_transparent(bm_handle, x, y);
}

// Computes a bounding sphere for the current room
// Parameters: center - filled in with the center point of the sphere