Function MoveObject

editor/HObject.cpp:574–609

Attempt to set new object position. May only move part of the way, or maybe not at all. Use FVI to find new object position Return: TRUE if moved, FALSE if can't move

// Use FVI to find new object position
//	Return:	TRUE if moved, FALSE if can't move
bool MoveObject(object *obj, vector *newpos) {
  fvi_query fq;
  fvi_info hit_info;
  int fate;

  // Use radius if this is a physics object
  bool use_radius = (obj->movement_type == MT_PHYSICS) ? true : false;

  // Follow vector from start position to desired end position, & move as far as we can
  fq.p0 = &obj->pos;
  fq.startroom = obj->roomnum;
  fq.p1 = newpos;
  fq.thisobjnum = OBJNUM(obj);
  fq.ignore_obj_list = NULL;
  fq.flags = FQ_IGNORE_RENDER_THROUGH_PORTALS;
  fq.rad = use_radius ? obj->size : 0.0f;

  if (f_allow_objects_to_be_pushed_through_walls) {
    fq.flags |= (FQ_IGNORE_WALLS | FQ_IGNORE_TERRAIN | FQ_IGNORE_EXTERNAL_ROOMS);
  }

  fate = fvi_FindIntersection(&fq, &hit_info);

  mprintf(0, "fate = %d\n", fate);

  // Check for object can't move, meaning it's stuck in the wall
  if (fate == HIT_WALL)
    if (vm_VectorDistance(&obj->pos, &hit_info.hit_pnt) < MOVE_EPSILON)
      return 0; // didn't move

  // Set object position on where FVI told us we are
  ObjSetPos(obj, &hit_info.hit_pnt, hit_info.hit_room, NULL, false);

  // Say object moved
  return 1;
}

bool RotateObject(int objnum, angle p, angle h, angle b) {
  object *obj = &Objects[objnum];