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Learn how to implement a wait timer before starting your game in Unity, featuring solutions that prevent freezing issues using `WaitForSecondsRealtime`.
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How to Make Your Game Wait Before Starting: A Unity Guide

Creating an engaging game experience often involves waiting periods, such as when a game first starts. If you're working with Unity and want to implement a delay before your game launches, you may run into issues if not handled correctly. Many developers encounter a freezing issue when trying to pause the game using standard methods. In this guide, we will break down how to effectively create a wait before starting your game without causing it to freeze.

The Common Problem: Freezing on Start

When a developer attempts to pause the game at the start using the following code, they often find that it leads to a frozen screen instead of a countdown:

[[See Video to Reveal this Text or Code Snippet]]

The intention here is clear: the game should wait for three seconds before starting. However, setting Time.timeScale to 0 stops all time in the game, causing it not to count down. Let’s dive into how we can fix this problem.

The Solution: Using WaitForSecondsRealtime

To resolve the freezing issue, you can utilize WaitForSecondsRealtime instead of the standard WaitForSeconds. This method operates independently of Time.timeScale, meaning it keeps track of real-time duration regardless of any time scaling adjustments you make within the game.

How to Implement the Solution

Here’s how you can revise the existing code to use WaitForSecondsRealtime:

Change the Wait Method: Replace WaitForSeconds with WaitForSecondsRealtime in your coroutine.

Maintain Your Timer: The code will still allow you to pause any actions that rely on time scaling but won’t affect the delay itself.

Here’s the updated code:

[[See Video to Reveal this Text or Code Snippet]]

Key Takeaways

WaitForSecondsRealtime: Allows for a countdown timer that operates independently from the game’s time scale.

Preserve Game Mechanics: Utilizing this method ensures that your game can still function with other time-dependent features, such as animations or physics, while implementing wait behaviors effectively.

Conclusion

Integrating a wait period before starting your game can enhance user experience when done correctly. By using WaitForSecondsRealtime, you will avoid the frustrating issue of a frozen screen. Ensure that your game’s timing architecture supports various effects without losing functionality.

Now you're equipped to implement that countdown before your game begins without freezing it! Happy developing!