public void ResizeGrid()
{
_spaces = new DynaGrid <int>(_startingRows, _startingCols);
_tiles = new DynaGrid <DropArea>(_startingRows, _startingCols);
var offset = _frameRect.offsetMax;
offset.x = (_gridElementSize + _gridSpacing) * (_startingCols / 2f) + _borderSize;
offset.y = (_gridElementSize + _gridSpacing) * (_startingRows / 2f) + _borderSize;
_frameRect.offsetMax = offset;
offset = _frameRect.offsetMin;
offset.x = -((_gridElementSize + _gridSpacing) * (_startingCols / 2f) + _borderSize);
offset.y = -((_gridElementSize + _gridSpacing) * (_startingRows / 2f) + _borderSize);
_frameRect.offsetMin = offset;
}
