[游戏开发]Unity第一人称手游-左侧控制移动，右侧控制视角和方向（第一人称）

Unity第一人称手游-左侧控制移动，右侧控制视角和方向（第一人称）

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• 效果图
  

• 实现原理及步骤

  左侧遥杆移动->移动获取位置和中心点的偏移，控制人物前后左右移动。（Unity ->Canvas->Image）
  右侧视角控制->手指左右旋转获取偏移，控制相机的方向和偏移。

• 代码（部分代码）完整代码可下载 项目下载地址

 首先实现 IDragHandler 接口
 1.移动 和 旋转
 
   public virtual void OnDrag(PointerEventData ped)
    {

        bool _right = ped.position.x > (Screen.width / 2);
                
        Vector2 pos;

       if (!_right) 
        {
            if (RectTransformUtility.ScreenPointToLocalPointInRectangle(imgAnalog.rectTransform, ped.position, ped.pressEventCamera, out pos))
            {
                pos.x =  ((pos.x - (imgAnalog.rectTransform.rect.width / 2)) / imgAnalog.rectTransform.sizeDelta.x);
                pos.y =  ((pos.y + (imgAnalog.rectTransform.rect.height / 2)) / imgAnalog.rectTransform.sizeDelta.y);

                inputVectorAnalogic = new Vector3(pos.x * 2 + 1, 0, pos.y * 2 - 1);
                inputVectorAnalogic = (inputVectorAnalogic.magnitude > 1.0f) ? inputVectorAnalogic.normalized : inputVectorAnalogic;

                joystickImgAnalog.rectTransform.anchoredPosition = new Vector3(inputVectorAnalogic.x * (imgAnalog.rectTransform.sizeDelta.x / 3), inputVectorAnalogic.z * (imgAnalog.rectTransform.sizeDelta.y / 3));
            }
        }
        else if (_right) 
        {
            if (RectTransformUtility.ScreenPointToLocalPointInRectangle(imgLook.rectTransform, ped.position, ped.pressEventCamera, out pos))
            {
                pos.x =  ((pos.x - (imgLook.rectTransform.rect.width / 2)) / imgLook.rectTransform.sizeDelta.x);
                pos.y =  ((pos.y + (imgLook.rectTransform.rect.height / 2)) / imgLook.rectTransform.sizeDelta.y);

                inputVectorLook = new Vector3(pos.x * 2 + 1, 0, pos.y * 2 - 1);
                inputVectorLook = (inputVectorLook.magnitude > 1.0f) ? inputVectorLook.normalized : inputVectorLook;

                joystickImgLook.rectTransform.anchoredPosition = new Vector3(inputVectorLook.x * (imgLook.rectTransform.sizeDelta.x / 3), inputVectorLook.z * (imgLook.rectTransform.sizeDelta.y / 3));
            }        
        }
    }
2， update 更新数据
   void Update()
    {
        
        //Look
        var md = new Vector2(inputVectorLook.z, inputVectorLook.x);

        camLook.transform.localRotation = Quaternion.Euler(xyBase.x + md.x * -60, 0, 0);

        player.transform.rotation =  Quaternion.Euler(0, xyBase.y + md.y * 180, 0);

        
        var md2 = new Vector2(inputVectorAnalogic.z, inputVectorAnalogic.x);

        Vector3 forwardMovement = player.transform.forward * md2.x;
        Vector3 rightMovement = player.transform.right * md2.y;

        charController.SimpleMove(Vector3.ClampMagnitude(forwardMovement + rightMovement, 1.0f) * (Input.GetKey(KeyCode.LeftShift) ? speed * 2: speed));

    }

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