public Water(int width, int height)
{
_width = width;
_height = height;
_grid = new List<int>[_width* GridMultiplier, _height * GridMultiplier];
for (var x = 0; x < _width * GridMultiplier; ++x)
for (var y = 0; y < _height* GridMultiplier; ++y)
_grid[x,y] = new List<int>();
}