unity3d中上下左右键控制移动

ゝ一纸荒年。 2022-09-23 11:50 490阅读 0赞

using UnityEngine;  
    using System.Collections;  
      
    public class MoveByADSW : MonoBehaviour {  
          //人物状态
        public const int HERO_UP = 0;  
        public const int HERO_RIGHT = 1;  
        public const int HERO_DOWN = 2;  
        public const int HERO_LEFT = 3;  
      
        //人物当前行走的方向状态  
        public int state = 0;  
        //人物移动速度  
        public int moveSpeed = 2;  
          
        //初始化人物位置  
        public void Awake()  
        {  
            state = HERO_UP;  
        }  
        // Use this for initialization  
        void Start () {  
              
        }  
          
        // Update is called once per frame  
        void Update () {  
            //获取控制的方向， 上下左右，   
            float KeyVertical = Input.GetAxis("Vertical");  
            float KeyHorizontal = Input.GetAxis("Horizontal");  
            Debug.Log("keyVertical" + KeyVertical);  
            Debug.Log("keyHorizontal" + KeyHorizontal);  
            if(KeyVertical == -1)  
            {  
                setHeroState(HERO_DOWN); //下 
            }  
            else if(KeyVertical == 1)  
            {  
                setHeroState(HERO_UP);  //上
            }  
            if(KeyHorizontal == 1)  
            {  
                setHeroState(HERO_RIGHT); //右 
            }  
            else if(KeyHorizontal == -1)  
            {  
                setHeroState(HERO_LEFT);  //左
            }  
              
            if(KeyVertical == 0 && KeyHorizontal == 0)  
            {  
                animation.Play("idle");  
            }  
        }  
          
        void setHeroState(int newState)  
        {  
            //根据当前人物方向与上一次备份的方向计算出模型旋转的角度  
            int rotateValue = (newState - state) * 90;  
            Vector3 transformValue = new Vector3();  
              
            //播放行走动画  
            animation.Play("walk");  
              
            //模型移动的位置数值  
            switch(newState)  
            {  
            case HERO_UP:  
                transformValue = Vector3.forward * Time.deltaTime;  
                break;  
            case HERO_DOWN:  
                transformValue = (-Vector3.forward) * Time.deltaTime;  
                break;  
            case HERO_LEFT:  
                transformValue = Vector3.left * Time.deltaTime;  
                break;  
            case HERO_RIGHT:  
                transformValue = (-Vector3.left) * Time.deltaTime;  
                break;  
            }  
              
            transform.Rotate(Vector3.up, rotateValue);  
            //移动人物  
            transform.Translate(transformValue * moveSpeed, Space.World);  
            state = newState;  
        }  
    }