unity3d4.6 中文视频教程之飞车游戏

本人录制的视频教程，使用unity3d 4.6版本，讲解了一个赛车游戏的开发，相关的的源码在这里。主要偏重代码部分，个人提炼的干货，没有冗余的基本操作，而且视频还很清晰，希望能帮助到大家。

为了方便大家下载，上传到了百度网盘，这里

为了方便大家预览，上传到了优酷，这里

部分源码摘录：

using UnityEngine;
using System.Collections;

public class CameraFollowScript : MonoBehaviour {

    public GameObject car;
    public float distance = 5;
    public float heightDiff = 3;

    public float angleDamping = 1.5f; // 缓冲系数
    public float heightDamping = 1f;

    public float defaultFOV = 60;
    public float zoomRatio = 1.2f;

    private float dstAngleWithDirection = 0;

    // Use this for initialization
    void Start () {

    }   
    // Update is called once per frame
    void Update () {
        float myH = transform.position.y;
        float dstH = car.transform.position.y + heightDiff;
        float retH = Mathf.Lerp(myH, dstH, heightDamping * Time.deltaTime);

        float myAngle =  transform.eulerAngles.y;
        float dstAngle = dstAngleWithDirection;
        float retAngle = Mathf.LerpAngle(myAngle, dstAngle, angleDamping * Time.deltaTime);
        Quaternion retRotation = Quaternion.Euler(0, retAngle, 0);

        transform.position = car.transform.position;
        transform.position -= (retRotation * Vector3.forward * distance);
        Vector3 temp = transform.position;
        temp.y = retH;
        transform.position = temp;

        transform.LookAt(car.transform);
    }

    void FixedUpdate()
    {
        Vector3 v = car.rigidbody.velocity;
        //Vector3 faceDirection = car.transform.forward;
        //float dot = Vector3.Dot(v, faceDirection); // 点积
        Vector3 carLocalV = car.transform.InverseTransformDirection(v);

        float dstAnleY = car.transform.eulerAngles.y;
        if ( carLocalV.z < -0.01f ) 
            dstAngleWithDirection = dstAnleY + 180;
        else
            dstAngleWithDirection = dstAnleY;

        float speed = v.magnitude;
        camera.fieldOfView = defaultFOV + speed * zoomRatio;
    }
}

百度网盘，这里，视频截屏：
这里写图片描述