Unity | Multitouch with phics2D Collider - unity3d

Question

I created the sprites with images on my scene and i made work like buttons. All i want is that the all buttons are working simultaneously like multitouch screen. The code below is what i've done from now on. I use the TouchList which have gameobjects. I supposed the TouchList.Count would increase. However, the TouchList.Counts always show (number)1.
I definitely can't touch two gameObjects in same time because the state of first touched gameobject is changed to "Exit". How can i add touched gameObjects in TouchList?
Please let me know how can i fix this code.
void Update () {
if (Input.GetMouseButton(0) || Input.GetMouseButtonDown(0) || Input.GetMouseButtonUp(0)) {
touchesOld = new GameObject[touchList.Count];
touchList.CopyTo(touchesOld);
touchList.Clear();
Vector2 pos = Camera.main.ScreenToWorldPoint (Input.mousePosition);
RaycastHit2D hit1 = Physics2D.Raycast(pos, Vector2.zero);
//foreach (Touch touch in Input.touches) {
if (hit1.collider != null) {
GameObject recipient = hit1.transform.gameObject;
touchList.Add(recipient);
//Debug.Log ("recipient : " + hit1.transform.gameObject);
Debug.Log ("I'm hitting "+hit1.collider.name);
Debug.Log ("touchList.Count : " + touchList.Count);
//recipient.SendMessage("OnColliderHit",hit1.point,SendMessageOptions.DontRequireReceiver);
if (Input.GetMouseButtonDown(0)) {
recipient.SendMessage("OnTouchDown",hit1.point,SendMessageOptions.DontRequireReceiver);
}
if (Input.GetMouseButtonUp(0)) {
recipient.SendMessage("OnTouchUp",hit1.point,SendMessageOptions.DontRequireReceiver);
}
if (Input.GetMouseButton(0)) {
recipient.SendMessage("OnTouchStay",hit1.point,SendMessageOptions.DontRequireReceiver);
}
}
//}
foreach (GameObject g in touchesOld) {
if (!touchList.Contains(g)) {
g.SendMessage("OnTouchExit",hit1.point,SendMessageOptions.DontRequireReceiver);
}
}
}
}

Answer 1

This is my modified code. It works well.:-)
void Update () {
if (Input.GetMouseButton(0) || Input.GetMouseButtonDown(0) || Input.GetMouseButtonUp(0)) {
touchesOld = new GameObject[touchList.Count];
touchList.CopyTo(touchesOld);
touchList.Clear();
foreach (Touch touch in Input.touches) {
Debug.Log ("touch.position : " + touch.position.ToString());
Vector2 pos = Camera.main.ScreenToWorldPoint(touch.position);
RaycastHit2D hit1 = Physics2D.Raycast(pos, Vector2.zero);
if (hit1.collider != null) {
GameObject recipient = hit1.transform.gameObject;
touchList.Add(recipient);
//Debug.Log ("recipient : " + hit1.transform.gameObject);
Debug.Log ("I'm hitting "+hit1.collider.name);
Debug.Log ("touchList.Count : " + touchList.Count);
//recipient.SendMessage("OnColliderHit",hit1.point,SendMessageOptions.DontRequireReceiver);
if (Input.GetMouseButtonDown(0)) {
recipient.SendMessage("OnTouchDown",hit1.point,SendMessageOptions.DontRequireReceiver);
}
if (Input.GetMouseButtonUp(0)) {
recipient.SendMessage("OnTouchUp",hit1.point,SendMessageOptions.DontRequireReceiver);
}
if (Input.GetMouseButton(0)) {
recipient.SendMessage("OnTouchStay",hit1.point,SendMessageOptions.DontRequireReceiver);
}
}
}
foreach (GameObject g in touchesOld) {
if (!touchList.Contains(g)) {
g.SendMessage("OnTouchExit",SendMessageOptions.DontRequireReceiver);
}
}
}
}