How do I implement a full-screen toggle feature in my PC game using Unity?

Implementing a Full-Screen Toggle in Unity

Setting Up Full-Screen Mode

To implement a full-screen toggle feature in Unity, you’ll need to manipulate the Screen class. Unity provides a simple way to switch between full-screen and windowed mode using scripting.

public class FullScreenToggle : MonoBehaviour { void Update() { if (Input.GetKeyDown(KeyCode.F)) { Screen.fullScreen = !Screen.fullScreen; } } }

This script listens for the ‘F’ key press. Upon activation, it toggles the Screen.fullScreen boolean value, allowing the game to switch between full-screen and windowed mode.

Integrating a UI Button

It might be more user-friendly to offer this toggle through a UI button. Here’s how you can set it up:

1. Create a UIButton using the Unity UI system.
2. Attach a new script to the button that modifies the screen mode.

using UnityEngine; using UnityEngine.UI; public class FullScreenButton : MonoBehaviour { public Button fullScreenButton; void Start() { fullScreenButton.onClick.AddListener(ToggleFullScreen); } void ToggleFullScreen() { Screen.fullScreen = !Screen.fullScreen; } }

Attach this script to a UI button, ensuring the fullScreenButton is assigned appropriately in the Inspector.

Handling Resolution Settings

When implementing a full-screen toggle, it’s important to consider resolution settings for different displays. Unity’s Screen class can also control the resolution like this:

Screen.SetResolution(1920, 1080, Screen.fullScreen);

This command sets the game resolution to 1920×1080 and applies the current screen mode.

Performance Considerations

Be mindful of performance impact when switching between modes. Disable any unnecessary features such as vsync when in non-full-screen mode to optimize performance.

Additionally, if your game runs slow in full-screen, consider optimizing with GPU acceleration as discussed in the Microsoft Community advice.

Joyst1ck

Gaming Writer & HTML5 Developer

Answering gaming questions—from Roblox and Minecraft to the latest indie hits. I write developer‑focused HTML5 articles and share practical tips on game design, monetisation, and scripting.

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