Unity2017官方案例Roll_Ball 浅析学习

Unity2017官方案例Roll_Ball 浅析学习

1. 案例中相机跟随Player设置方法：①将MainCamera设置为Player的子物体（一旦Player旋转，相机也会随之旋转）②编写脚本CameraControl.cs。

public class CameraController : MonoBehaviour {    public GameObject player;    private Vector3 offset;    void Start () {        offset = transform.position - player.transform.position;    }    void LateUpdate () {        transform.position = player.transform.position + offset;    }}

引申：unity第一人称视角设置方法：①Import Package -> Charactor，使用预设。②为游戏对象设置第三人称方法http://blog.csdn.net/a18779148177/article/details/74728380

2.Player移动方法Rigidbody.AddForce

public class PlayerController : MonoBehaviour {    public float speed;    private Rigidbody rb;`void Start () {        rb = GetComponent<Rigidbody> ();    }    void FixedUpdate(){        float moveHorizontal = Input.GetAxis ("Horizontal");        float moveVertical = Input.GetAxis ("Vertical");        Vector3 movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);        rb.AddForce (movement * speed);    }    }

①Edit->project settings->Input 打开 InputManager（Unity3D Input按键系统）。Horizontal 和 Vertical被映射到w, a, s, d键和方向键。其余Fire1,Fire2等默认输入轴映射见之。
参考：http://www.cnblogs.com/fortomorrow/archive/2012/11/01/unity08.html
②Rigidbody.AddForce()有四种重载方式，AddForce(Vector3 Force/Vector3 Force,ForceMode mode/float x,float y,float z/float x,float y,float z,ForceMode mode)，案例使用第一种。

ForceMode为枚举类，下有Acceleration(加速度），Force(真实的物理力），Impulse(冲击力，瞬间发生的力），VelocityChange(忽略重量的速度变化力）

其他方式如下：①rb.AddForce(movement,ForceMode.Force);
②rb.AddForce(moveHorizontal,0.0f,moveVertical);
③rb.AddForce(moveHorizontal,0.0f,moveVertical,ForceMode.Force);

另附unity物体简单移动方法：http://www.jianshu.com/p/12f656c29a36

3.物体旋转方法以及pickup被碰撞就消失方法：

public class Rotator : MonoBehaviour {    // Use this for initialization    void Start () {    }    // Update is called once per frame    void Update () {        transform.Rotate (new Vector3 (15, 30, 45) * Time.deltaTime);    }}

将pickup的IsTrigger（触发模式）勾选并标记Tag为‘“pickup”，在PlayerController脚本补充

void OnTriggerEnter(Collider other)    {        if(other.CompareTag("pickup"))        {            other.gameObject.SetActive (false);        }    }

另一种方法是在pickup挂载的Rotato脚本补充

void OnTriggerEnter(Collider other)    {            this.gameObject.SetActive (false);            //Collider.Destroy (this.gameObject);让物体消失还有多种方法        }

OnTriggerEnter(Collider )：当进入触发范围；OnTriggerExit(Collider )：当离开触发范围；OnTriggerStay(Collider )：在触发范围内。

4.调整Text方位要先按shift+alt键