前天撸了一个简单的UGUI虚拟摇杆，今天我就利用前天做的虚拟摇杆做了一个简单的摄像机控制器，主要看看UGUI虚拟摇杆是否可以完美的控制移动和旋转。（PS：主要是为接下来的项目做技术测试），手游版的CF的角色控制器也是利用设个方式进行摄像机的控制，利用双摇杆进行角色的前进和旋转，如果你玩过PSV或者是用过手柄控制器就知道啥意思了，接下来我们就来实现这个功能需求。
首先我们先做两个简单的虚拟摇杆，如下图所示：
因为我们是要实现摄像机的移动，因此我就直接在MainCamera上添加脚本，手游CF左边虚拟摇杆是用来控制角色移动，右边是控制角色的射击以及角色的旋转，那么我们现在我们来实现个功能。因为功能是否简单所以我就直接上代码了。代码如下所示：
using System;
using UnityEngine;
using System.Collections;public class ControlCamera : MonoBehaviour
{public float moveSpeed = 100.0f;public float rotateSpeed = 1;public float minAngleY = -30f;public float maxAngleY = 30f;public ScrollCircle joyStick1;public ScrollCircle joyStick2;private Vector2 angleVector2 = Vector2.zero;// Update is called once per framevoid Update (){UpdateCamera();}/// <summary>/// 更新摄像机位置以及旋转角度/// </summary>public void UpdateCamera(){if (!joyStick1.GetIsOnEndDrag() && joyStick1.GetOffsetVector3() != Vector3.zero){this.transform.localPosition = new Vector3(this.transform.localPosition.x + (joyStick1.GetOffsetVector3().x*moveSpeed),this.transform.localPosition.y,this.transform.localPosition.z + (joyStick1.GetOffsetVector3().y*moveSpeed));}if (!joyStick2.GetIsOnEndDrag() & joyStick2.GetOffsetVector3() != Vector3.zero){angleVector2.x += joyStick2.GetOffsetVector3().x*rotateSpeed;angleVector2.y -= joyStick2.GetOffsetVector3().y*rotateSpeed;angleVector2.y = ClampAngle(angleVector2.y, minAngleY, maxAngleY);Quaternion rotateAngle = Quaternion.Euler(angleVector2.y, angleVector2.x, 0);this.transform.localRotation = rotateAngle;angleVector2.y = ClampAngle(angleVector2.y, minAngleY, maxAngleY);}}/// <summary>/// 限制选择角度/// </summary>/// <param name="angle"></param>/// <param name="min"></param>/// <param name="max"></param>/// <returns></returns>static float ClampAngle(float angle, float min, float max){if (angle < -360)angle += 360;if (angle > 360)angle -= 360;return Mathf.Clamp(angle, min, max);}
}
代码可能写的不好，欢迎大神们指导教育0.0
2016/4/18 15：46
刚刚发现有仔细看代码的时候发现一个严重bug，Y轴旋转180度后你会发现所有的移动都反了，这样影响到了操作了因此我们需要把这个严重的bug修复了，这里我只把UpdateCamera函数放出来，修改如下：
public void UpdateCamera(){if (!joyStick1.GetIsOnEndDrag() && joyStick1.GetOffsetVector3() != Vector3.zero){movePos.x = joyStick1.GetOffsetVector3().x*moveSpeed;movePos.z = joyStick1.GetOffsetVector3().y*moveSpeed;float y = transform.localRotation.eulerAngles.y;movePos = Quaternion.Euler(0, y, 0)*movePos;Vector3 currentPoint = new Vector3(transform.localPosition.x + movePos.x, transform.localPosition.y,transform.localPosition.z + movePos.z);this.transform.localPosition = currentPoint;}if (!joyStick2.GetIsOnEndDrag() & joyStick2.GetOffsetVector3() != Vector3.zero){angleVector2.x += joyStick2.GetOffsetVector3().x*rotateSpeed;angleVector2.y -= joyStick2.GetOffsetVector3().y*rotateSpeed;angleVector2.y = ClampAngle(angleVector2.y, minAngleY, maxAngleY);Quaternion rotateAngle = Quaternion.Euler(angleVector2.y, angleVector2.x, 0);this.transform.localRotation = rotateAngle;angleVector2.y = ClampAngle(angleVector2.y, minAngleY, maxAngleY);}} ----Begonia
