c# - C#中的定时器脚本

Question

我的计时器仍在更新中运行，但不会在碰撞后停止。我想在游戏开始时启动计时器，并在我的玩家与敌人发生碰撞时停止。

这是我的 Timer.cs 和播放器 (Ship,cs) 脚本:

定时器.cs:

[SerializeField]
public Text scoreText;
float startTime;
public const string scorePrefix = "Timer: ";

//Timer initializer
public float elapsedSeconds = 0;

//Stop Timer initializer
bool gameTimerIsRunning = true;

// Start is called before the first frame update
void Start() {
    gameTimerIsRunning = true;
    startTime = 0;
    scoreText.text = scorePrefix + startTime.ToString();
}

// Update is called once per frame
void Update() {
    if (gameTimerIsRunning == true) {
        elapsedSeconds += Time.deltaTime;
        int timer = (int) elapsedSeconds;
        scoreText.text = scorePrefix + timer.ToString();
        Debug.Log("YOO....");
    }
}

public void StopGameTimer() {
    gameTimerIsRunning = false;
    GetComponent < Text > ().text = "Sorry !!";

    Debug.Log("StopGameTimer Is called Succesfully.");
}

Ship.cs:

HUD hud;

[SerializeField]
public GameObject prefabBullet;

Bullet script;

// thrust and rotation support
Rigidbody2D rb2D;
Vector2 thrustDirection = new Vector2(1, 0);
const float ThrustForce = 10;
const float RotateDegreesPerSecond = 180;

/// <summary>
/// Use this for initialization
/// </summary>
void Start() {
    hud = GetComponent < HUD > ();
    //  bullet = prefabBullet.GetComponent<Bullet>();
    // saved for efficiency
    rb2D = GetComponent < Rigidbody2D > ();
}

/// <summary>
/// Update is called once per frame
/// </summary>
void Update() {
    // check for rotation input
    float rotationInput = Input.GetAxis("Rotate");
    if (rotationInput != 0) {

        // calculate rotation amount and apply rotation
        float rotationAmount = RotateDegreesPerSecond * Time.deltaTime;
        if (rotationInput < 0) {
            rotationAmount *= -1;
        }
        transform.Rotate(Vector3.forward, rotationAmount);

        // change thrust direction to match ship rotation
        float zRotation = transform.eulerAngles.z * Mathf.Deg2Rad;
        thrustDirection.x = Mathf.Cos(zRotation);
        thrustDirection.y = Mathf.Sin(zRotation);
    }

    //Firing the Bullet
    if (Input.GetKeyDown(KeyCode.LeftControl)) {
        GameObject bullet = Instantiate(prefabBullet, transform.position, Quaternion.identity);
        bullet.GetComponent < Bullet > ().ApplyForce(thrustDirection);
    }
}

/// <summary>
/// FixedUpdate is called 50 times per second
/// </summary>
void FixedUpdate() {
    // thrust as appropriate
    if (Input.GetAxis("Thrust") != 0) {
        rb2D.AddForce(ThrustForce * thrustDirection, ForceMode2D.Force);
    }
}

/// <summary>
/// Destroys the ship on collision with an asteroid
/// </summary>
/// <param name="coll">collision info</param>
void OnCollisionEnter2D(Collision2D coll) {
    hud = gameObject.AddComponent < HUD > ();

    if (coll.gameObject.CompareTag("Asteroid")) {
        hud.StopGameTimer();
        Destroy(gameObject);
    }
}

我将我的计时器脚本附加到 Hud Canvas 并将脚本发送到游戏对象。

Answer 1

您应该首先获得对 HUD Canvas 游戏对象的引用:

Ship.cs 的变化:

void OnCollisionEnter2D(Collision2D coll) {
    hud = GameObject.Find("HudCanvas").GetComponent < HUD > ();

假设hud Canvas 游戏对象的名字是“HudCanvas”