Function AddPointToFace

editor/HRoom.cpp:1034–1064

Adds a point to a face Parameters: rp,facenum - the face we're adding the point to vertindex - the position in the face's vertex list at which to add the point vp - the point to add

//					vertindex - the position in the face's vertex list at which to add the point
//					vp - the point to add
void AddPointToFace(room *rp, int facenum, int vertindex, vector *vp) {
  face *fp = &rp->faces[facenum];
  int old_verts[MAX_VERTS_PER_FACE];
  roomUVL old_uvls[MAX_VERTS_PER_FACE];
  int t;

  // Add the new point to the room
  int newvertnum = RoomAddVertices(rp, 1);
  rp->verts[newvertnum] = *vp;

  // Make copy of old verts
  for (t = 0; t < fp->num_verts; t++) {
    old_verts[t] = fp->face_verts[t];
    old_uvls[t] = fp->face_uvls[t];
  }

  // Allocate for new verts
  ReInitRoomFace(fp, fp->num_verts + 1);

  // Copy old verts
  for (t = 0; t < vertindex; t++) {
    fp->face_verts[t] = old_verts[t];
    fp->face_uvls[t] = old_uvls[t];
  }
  fp->face_verts[t++] = newvertnum;
  // fp0->face_uvls[t] = ??
  for (; t < fp->num_verts; t++) {
    fp->face_verts[t] = old_verts[t - 1];
    fp->face_uvls[t] = old_uvls[t - 1];
  }
}

// Deletes a point from a face
// Parameters:	rp,facenum - the face we're deleting the point from