Detailed explanation of Unity delay implementation

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Creating delays in Unity is essential for managing game flows, sorting events, and simulating real-world behavior. Here are a few ways to achieve delay:

1. WaitForSeconds/WaitForSecondsRealtime

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• StartCoroutine
: Declare a coroutine function.
• WaitForSeconds
: Pauses execution for a specified time (affected by game speed).
• WaitForSecondsRealtime
: Pauses execution for a specified time (not affected by game speed).

Example:

IEnumerator WaitForSecondsExample()
{
    // 旋转90度
    transform.Rotate(Vector3.right * 90);

    // 等待4秒（不受游戏速度影响）
    yield return new WaitForSecondsRealtime(4);

    // 旋转40度
    transform.Rotate(Vector3.right * 40);

    // 等待2秒（受游戏速度影响）
    yield return new WaitForSeconds(2);

    // 旋转20度
    transform.Rotate(Vector3.right * 20);
}

2. Time-based loop

• using while or for loop of
: gradually increase the timer until the desired value is reached.
• yield return null
: Pause execution of one frame.

Example:

IEnumerator TimeBasedLoopExample()
{
    // 旋转90度
    transform.Rotate(Vector3.right * 90);

    // 等待4秒（受游戏速度影响）
    float timer = 0;
    while (timer 

3. WaitUntil/WaitWhile Function

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• WaitUntil
: Execution is not suspended until the condition is true.
• WaitWhile
: Pause execution when the condition is true.

Example:

IEnumerator WaitUntilExample()
{
    // 等待玩家分数达到100
    yield return new WaitUntil(() => playerScore >= 100);

    // 加载下一关
    SceneManager.LoadScene("NextLevel");
}

4. Invoke Function

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• Invoke
: Schedule a function to execute after a specified delay.
• InvokeRepeating: Similar to Invoke
, but the function is called repeatedly at specified time intervals.

Example:

Invoke("FeedDog", 5); // 5秒后调用FeedDog()

InvokeRepeating("MovePlayer", 0.5f, 0.2f); // 每0.2秒调用MovePlayer()，持续0.5秒。

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5. Delay based on Update()

• Time.deltaTime: Used to measure the time between frames.
Timer variable
• : Increment each frame until the desired value is reached.
• if statement: Check whether the timer reaches the required value and execute the necessary code.

Example:

void Update() { timer = Time.deltaTime; if (timer >= 5) { // Execute the code after 5 seconds timer = 0; FeedDog(); } }

void Update()
{
    timer  = Time.deltaTime;

    if (timer >= 5)
    {
        // 5秒后执行代码
        timer = 0;
        FeedDog();
    }
}

Solve your problem:

To create a delay when displaying text in your script, you can use the following code:

IEnumerator ShowTextWithDelay() { TextUI.text = "Welcome to the Digital Wizard!"; yield return new WaitForSeconds(3f); TextUI.text = ("The highest number you can choose is "max); yield return new WaitForSeconds(3f); TextUI.text = ("The lowest number you can choose is " min); } StartCoroutine(ShowTextWithDelay());