Unityでゲームオブジェクトやコンポーネントを探す方法色々

GameObject obj = this.gameObject;

GameObject obj = transform.gameObject;

GameObject obj = transform.parent.gameObject;

for(int i = 0; i < transform.childCount; i++){
	GameObject obj = transform.GetChild (i).gameObject;
}

foreach(Transform t in transform){
	GameObject obj = t.gameObject;
}

GameObject obj = GameObject.Find("Environments") as GameObject;

GameObject obj = GameObject.Find("Environments/Directional Light") as GameObject;

GameObject obj = GameObject.FindWithTag("Actor") as GameObject;

GameObject[] objs = GameObject.FindGameObjectsWithTag("Actor");
foreach(GameObject obj in objs)
{
	print ("FindGameObjectsWithTag: " + obj);
}

Dammy dammy = FindObjectOfType(typeof(Dammy)) as Dammy;

Dammy dammy = FindObjectOfType(typeof(Dammy)) as Dammy;

Dammy dammy = gameObject.GetComponent<Dammy> () as Dammy;

Dammy dammy = gameObject.GetComponent<Dammy> () as Dammy;