2017-07-31

TPS射击游戏实战开发(终)

最终实现:人物控制及子弹发射

U3D自带角色控制器

Assest -> Import Package -> Characters
可以导入U3D自带的人物控制器

人物移动及镜头移动


using UnityEngine;
public class CameraMove : MonoBehaviour {
    
    void Start()
    {
        mMoveSpeed = 5f;
        isAiming = false;
        cc = GetComponent<CharacterController>();
    }
   
    void Update()
    {
       UpdateLookAt();
        //放大镜头
        if (Input.GetMouseButtonDown(1))
        {
            if (isAiming)
            {
                ACamera.depth = -2;
                isAiming = false;
                
            }
            else
            {
                ACamera.depth = 0;
                isAiming = true;
            }
        }
    }
     void FixedUpdate()
    {
        UpdateMovement();
    }
    // 第一人称控制器的常量与变量  
    public Transform SCamera;
    public Camera ACamera;
    public GameObject hero;
    private CharacterController cc;
    private bool isAiming;
    
    public float mMoveSpeed;         // 物体移动速度  
    public float mMouseSensitivity = 10;     // 鼠标旋转的敏感度  
    public float mMinimumX = -25;       // 向下望的最大角度  
    public float mMaximumX = 45;        // 向上望的最大角度  
    public float mMinimumY = -360;         // 向左望的最大角度  
    public float mMaximumY = 360;       // 向右望的最大角度  
    private Vector3 _curRotation = new Vector3(0, 0, 0);       // 当前旋转角度  
    // 更新移动位置  
    
    private void UpdateMovement()
    {
        
        float distance = mMoveSpeed * Time.deltaTime;   // 移动距离  
        if (Input.GetKey(KeyCode.Escape))
        {
            
            this.enabled = false;
        }
        if (Input.GetKey(KeyCode.W))
        {
            cc.Move(transform.forward * distance);
                
        }
        if (Input.GetKey(KeyCode.S))
        {
            cc.Move(transform.forward* -1 * distance);
        }
        if (Input.GetKey(KeyCode.A))
        {
            cc.Move(transform.right* -1 * distance);
        }
        if (Input.GetKey(KeyCode.D))
        {
            cc.Move(transform.right * distance);
        }
    }
    // 更新摄像头指向位置  
    private void UpdateLookAt()
    {
        // 左右旋转  
        _curRotation.y = _curRotation.y + Input.GetAxis("Mouse X") * mMouseSensitivity;
        _curRotation.y = Mathf.Clamp(_curRotation.y, mMinimumY, mMaximumY);
        // 上下旋转  
        _curRotation.x = _curRotation.x - Input.GetAxis("Mouse Y") * mMouseSensitivity;
        _curRotation.x = Mathf.Clamp(_curRotation.x, -mMinimumX, mMaximumX);
        if (_curRotation.x <= -65f)
        {
            _curRotation.x = -65f;
        }
        // 设置摄像头  
        Vector3 rotation = transform.eulerAngles;
        SCamera.localEulerAngles = new Vector3(_curRotation.x, SCamera.rotation.y, SCamera.rotation.z);
        rotation.y = _curRotation.y;
        transform.eulerAngles = rotation;
    }
    //更改速度方法
    public void setSpeed(float speed)
    {
        mMoveSpeed = speed;
    }
}

子弹射线

使用预备课中讲过的射线方法实现子弹发射

使用SendMessage这个强大的方法来实现物体Hp的减少


using UnityEngine;
public class FireControl : MonoBehaviour {
    public GameObject bullet;
    public GameObject anim;
    private Animator a;
    private LineRenderer m_line;
    public Transform look;
    public Ray myRay;
    RaycastHit myHit;
    bool canFire = true;
    //射速
    int shoot_speed=0;
    //弹药
    int ammo = 30;
     void Start()
    {
        
        m_line = gameObject.GetComponent<LineRenderer>();
        a = anim.GetComponent<Animator>();
    }
     void Update()
    {
        
        if (Input.GetKeyDown(KeyCode.Q))
        {
            if (m_line.enabled)
            {
                m_line.enabled = false;
            }
            else
                m_line.enabled = true;
        }
        m_line.SetPosition(0,transform.position);
        m_line.SetPosition(1, transform.position+transform.forward);
    }
    void FixedUpdate()
    {
        if (Input.GetKeyDown(KeyCode.R))
        {
            if (ammo <= 29)
            {
                canFire = false;
                a.SetBool("Reloding", true);
                ammo = 30;
                Invoke("FireAgain",2.5f);
            }
        }
        if(canFire)
        if (Input.GetMouseButtonDown(0))
        {
            if (ammo > 0)
            {
                ammo--;
                    //Instantiate(bullet, new Vector3(transform.position.x, transform.position.y, transform.position.z), Quaternion.identity);
                myRay = Camera.main.ScreenPointToRay(Input.mousePosition);
                if (Physics.Raycast(myRay, out myHit))
                {
                        Debug.Log(myHit.collider.gameObject.name);
                        myHit.collider.gameObject.SendMessage("reduce");
                 }
                    shoot_speed = 0;
            }
   
        }
        if(canFire)
        if (Input.GetMouseButton(0))
        {
            shoot_speed++;
            if (shoot_speed == 7 && ammo>0)
            {
                ammo--;
                    //Instantiate(bullet, new Vector3(transform.position.x, transform.position.y, transform.position.z), Quaternion.identity);
                    myRay = Camera.main.ScreenPointToRay(Input.mousePosition);
                    if (Physics.Raycast(myRay, out myHit))
                    {
                        Debug.Log(myHit.collider.gameObject.name);
                        myHit.collider.gameObject.SendMessage("reduce");
                    }
                    shoot_speed = 0;
            }
        }
    }
    void FireAgain()
    {
        canFire = true;
        a.SetBool("Reloding", false);
    }
}