小白的Unity5之路(一)

Player移动:

 public float speed = 6f;
 Vector3 movement;
 Rigidbody playerRididbody;
 
 void FixedUpdate () {
         float h = Input.GetAxisRaw("Horizontal");
         float v = Input.GetAxisRaw("Vertical");
         Move(h, v);
         Animating(h, v);
 }
  void Move(float h, float v) {
         movement.Set(h, 0f, v);
         movement = movement.normalized * speed * Time.deltaTime;
         playerRididbody.MovePosition(transform.position + movement);
    }

通过h和v的值判断Player是否移动

 void Animating(float h, float v) {
 
         bool walking = h !=  || v != ;   //判断Player是否移动
 
         anim.SetBool("IsWalking", walking);
     }

Player跟随鼠标旋转:

首先建立一个面片作为地板(Floor)层,Layer也要设置成Floor.

然后删除地板的Mesh Renderer组件

 int floorMask;
 
   float camRayLength = 1000f;
 
 同时还要获取Floor层
 
  floorMask = LayerMask.GetMask("Floor");
 
  //Camera.main.ScreenPointToRay方法向某位置发射一条射线，射线与地面碰撞体产生碰撞。取得碰撞点，然后旋转Player。
 
     void Truing() {
 
         Ray camRay = Camera.main.ScreenPointToRay(Input.mousePosition);//返回一条射线
 
         RaycastHit floorHit;
 
         if (Physics.Raycast(camRay, out floorHit, camRayLength, floorMask)) {
 
             Vector3 playerToMouse = floorHit.point - transform.position;
 
             playerToMouse.y = 0f;
 
             Quaternion newRotation = Quaternion.LookRotation(playerToMouse);
 
             playerRididbody.MoveRotation(newRotation);
 
         }
 
 }

Raycast (ray : Ray, out hitInfo : RaycastHit, distance : float = Mathf.Infinity, layerMask : int = kDefaultRaycastLayers)

参数
ray	射线的起点和方向
hitInfo	如果返回true，hitInfo将包含碰到器碰撞的更多信息。
distance	射线的长度
layerMask	只选定Layermask层内的碰撞器，其它层内碰撞器忽略。

完整代码:

 using UnityEngine;
 
 using System.Collections;
 
 public class PlayerMovement : MonoBehaviour {
 
     public float speed = 6f;//人物移动速度
 
     Vector3 movement;
 
     Rigidbody playerRididbody;
 
     Animator anim;
 
     int floorMask;
 
     float camRayLength = 100f;
 
     void Awake() {
 
         floorMask = LayerMask.GetMask("Floor");
 
         playerRididbody = GetComponent<Rigidbody>();//获取Player身上的刚体
 
         anim = GetComponent<Animator>();//获取动画组件
 
     }
 
 void Start () {
 
 }
 
 // Update is called once per frame
 
 void FixedUpdate () {
 
         float h = Input.GetAxisRaw("Horizontal");
 
         float v = Input.GetAxisRaw("Vertical");
 
         Move(h, v);
 
         Truing();
 
         Animating(h, v);
 
     }
 
     //Camera.main.ScreenPointToRay方法向某位置发射一条射线，射线与地面碰撞体产生碰撞。取得碰撞点，然后旋转Player。
 
     void Truing() {
 
         Ray camRay = Camera.main.ScreenPointToRay(Input.mousePosition);//返回一条射线
 
         RaycastHit floorHit;
 
         if (Physics.Raycast(camRay, out floorHit, camRayLength, floorMask)) {
 
             Vector3 playerToMouse = floorHit.point - transform.position;
 
             playerToMouse.y = 0f;
 
             Quaternion newRotation = Quaternion.LookRotation(playerToMouse);
 
             playerRididbody.MoveRotation(newRotation);
 
         }
 
     }
 
     void Move(float h, float v) {
 
         movement.Set(h, 0f, v);
 
         movement = movement.normalized * speed * Time.deltaTime;
 
         playerRididbody.MovePosition(transform.position + movement);
 
     }
 
     void Animating(float h, float v) {
 
         bool walking = h !=  || v != ;   //判断Player是否移动
 
         anim.SetBool("IsWalking", walking);
 
     }
 
 }