MOBA遥杆
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
public class JoyStick : MonoBehaviour ,IDragHandler,IPointerDownHandler,IPointerUpHandler{
public RectTransform parent;
public RectTransform center;
Camera worldCamera;
void Start ()
{
worldCamera = FindObjectOfType<Canvas>().worldCamera;
}
public void OnDrag(PointerEventData eventData)
{
Vector2 localPoint;
RectTransformUtility.ScreenPointToLocalPointInRectangle(parent,Input.mousePosition,worldCamera,out localPoint);
localPoint = Vector3.ClampMagnitude(localPoint,80);//限制向量locaPoint的模在80以内
center.anchoredPosition = localPoint;
}
public void OnPointerDown(PointerEventData eventData)
{
Vector2 localPoint;
RectTransformUtility.ScreenPointToLocalPointInRectangle(parent, Input.mousePosition, worldCamera, out localPoint);
localPoint = Vector3.ClampMagnitude(localPoint, 80);//限制向量locaPoint的模在80以内
center.anchoredPosition = localPoint;
}
public void OnPointerUp(PointerEventData eventData)
{
center.anchoredPosition = Vector2.zero;
}
}
