Скачать или смотреть Mastering Scene Load Delays in Unity

Struggling with scene load delays in Unity? Learn how to create effective transition screens and manage scene loading with simple coroutines in Unity, ensuring a smooth gameplay experience.
---
This video is based on the question https://stackoverflow.com/q/74612722/ asked by the user 'Kona79' ( https://stackoverflow.com/u/20108511/ ) and on the answer https://stackoverflow.com/a/74613964/ provided by the user 'derHugo' ( https://stackoverflow.com/u/7111561/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Can't figure out unity scene load delay

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Mastering Scene Load Delays in Unity: A Step-by-Step Guide

As a game developer using Unity, you might face challenges like managing scene transitions effectively. One common issue is wanting to delay scene loading to show transitional screens, such as a win screen. If you're encountering a problem where your next scene loads immediately upon player collision with a portal, don’t worry! In this post, I will guide you step by step on how to implement scene loading delays using coroutines for a smooth gameplay experience.

The Problem

Your initial challenge is to display a win screen and manage level transitions after a player collides with a portal in your game. The expected behaviors are:

Show a winning screen for a few seconds.

Fade out a sprite before loading the next scene.

Ensure that the next level does not load instantly upon collision.

However, using the Update() method to handle these transitions might result in a scenario where your game skips the intended delay and abruptly loads the next scene.

Understanding the Solution

To solve this issue effectively, we will transition from using the Update() method to implementing coroutines. Coroutines in Unity allow you to pause execution and return in the next frame, enabling you to create delays without freezing your game.

Why Use Coroutines Instead of Update?

Performance: The Update() method runs every frame, which can lead to rapid detection of conditions and bypassing intended delays.

Clarity: Coroutines provide a more straightforward approach for sequential tasks such as fading, waiting, and loading scenes.

Maintainability: Adjusting times or adding/removing fade steps is more manageable with coroutines than multiple conditional checks within Update().

Step-by-Step Implementation

Let’s break down how you can effectively implement this solution.

1. Declare Variables

Set up your variables to manage the current and next scenes.

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

2. Implement the OnTriggerEnter2D Coroutine

Instead of OnTriggerEnter2D, make it an IEnumerator method to utilize coroutine capabilities.

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

3. Create the Fade Out Coroutine

You will need a separate coroutine to handle the sprite fading.

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

Conclusion

By shifting to a coroutine-based approach, you achieve a much clearer and efficient way to handle scene loading delays. You'll end up with a more robust system for managing transitions that enhances the overall player experience. Next time you find yourself in a similar situation, remember the power of coroutines in Unity and how they simplify complex logic into manageable steps.

Now, you can confidently implement scene load delays and improve your game’s flow! Happy developing!