using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;

public class ButtonleftOrMiddleAndRight : MonoBehaviour, IPointerClickHandler
{
public UnityEvent leftClick;
public UnityEvent middleClick;
public UnityEvent rightClick;
private void Start()
{
　　leftClick.AddListener(new UnityAction(ButtonLeftClick));
　　rightClick.AddListener(new UnityAction(ButtonRightClick));　　
　　middleClick.AddListener(new UnityAction(ButtonMiddleClick));
}

public void OnPointerClick(PointerEventData eventData)
{
　　if (eventData.button == PointerEventData.InputButton.Left)
　　　　leftClick.Invoke();
　　else if (eventData.button == PointerEventData.InputButton.Right)
　　　　rightClick.Invoke();
　　else if (eventData.button == PointerEventData.InputButton.Middle)
　　　　middleClick.Invoke();
}

private void ButtonLeftClick()
{
　　Debug.LogError("Left Click");
}
private void ButtonRightClick()
{
　　Debug.LogError("Right Click");
}
private void ButtonMiddleClick()
{
　　Debug.LogError("Middle Click");
}
}