public void Generate()
{
//ルートオブジェクト作成
if (rootGameObject == null)
{
rootGameObject = new GameObject(rootName);
}
gridGenerator.SetRootAndGridInfo(rootGameObject, cellTypes);
gridGenerator.MakeGrid();
cellTypes = gridGenerator.cellTypes;
roadGenerator.SetRootAndGridInfo(rootGameObject, cellTypes);
roadGenerator.MakeRoads();
roadGenerator.MakeTrafficLights();
CreateSidewalkAndGround();
CreateHouse2x2();
}