public Node(int _x, int _y)
{
x = _x;
y = _y;
if (!WorldData.ContainsTile(x, y))
{
intraversable = true;
}
else
{
Tile tile = WorldData.GetTile(x, y);
if (tile != null && tile.type != 0)
{
intraversable = true;
}
}
}