Unity 3D实现点击按钮显示游戏当前计时功能求助

Hey there! Let's get that button functionality sorted so clicking "CurrentTime" shows the current game timer on your UI Text. Here's a straightforward step-by-step solution:

Step 1: Refactor the Script for Reusable Logic #

First, we'll wrap the time display logic into a reusable method, then create a public method your button can trigger. This keeps the code clean and avoids redundant work.

Here's the updated Timer script:

using UnityEngine;
using UnityEngine.UI;

public class Timer : MonoBehaviour 
{ 
    public int Hours = 0; 
    public int Minutes = 0; 
    public Text m_text; // For real-time timer display
    private float timestart; 
    public Text ending; // Text to update when button is clicked

    void Awake() { 
        timestart = GetInitialTime(); 
    } 

    void Start () { 
        // Initialize the real-time timer display
        UpdateTimeDisplay(m_text);
    } 

    private void Update() { 
        if (timestart > 0f) { 
            // Update timer value (adjust 0.25f if you need different time flow speed)
            timestart += Time.deltaTime * 0.25f; 
            // Refresh the real-time display
            UpdateTimeDisplay(m_text);
        } 
        // Removed automatic updates to 'ending' text – we'll only update it on button click
    } 

    // Reusable method to update any Text component with current time
    private void UpdateTimeDisplay(Text targetText)
    {
        if (timestart > 0f)
        {
            int currentHours = GetLeftHours();
            int currentMinutes = GetLeftMinutes();
            targetText.text = $"{currentHours}:{currentMinutes.ToString("00")}";
        }
        else
        {
            targetText.text = "00:00";
        }
    }

    // Public method for the button to call
    public void OnCurrentTimeButtonClicked()
    {
        UpdateTimeDisplay(ending);
    }

    private float GetInitialTime() { 
        return Hours * 60f + Minutes; 
    } 

    private int GetLeftHours() { 
        return Mathf.FloorToInt(timestart / 60f); 
    } 

    private int GetLeftMinutes() { 
        return Mathf.FloorToInt(timestart % 60f); 
    } 
}

Step 2: Bind the Method to Your Button in Unity Editor #

1. Select your "CurrentTime" Button GameObject in the Hierarchy.
2. In the Inspector panel, scroll down to the On Click () section.
3. Click the + button to add a new event.
4. Drag the GameObject with your Timer script attached into the empty "None (Object)" slot.
5. Click the dropdown menu, navigate to Timer > OnCurrentTimeButtonClicked().

That's all! Now when you click the "CurrentTime" button, the ending Text component will show the current game timer value (like "24:04" after 4 minutes of gameplay, matching your time speed setting).

Quick Note on Time Speed #

The line timestart += Time.deltaTime * 0.25f makes the game timer run at 25% of real-time speed. If you want game time to match real-time exactly, replace that line with:

timestart += Time.deltaTime / 60f;

This converts real-time seconds into minutes, so 60 seconds of real time adds 1 minute to the game timer.

内容的提问来源于stack exchange，提问作者Awais Ahmed