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using UnityEngine; | |
using UnityEngine.UI; | |
[RequireComponent(typeof(Canvas))] | |
[RequireComponent(typeof(CanvasScaler))] | |
public class MyCanvasScaler : MonoBehaviour | |
{ | |
[SerializeField] GameObject canvasContent; | |
[SerializeField] bool keepProportions = true; | |
Vector2 referenceResolution; | |
void OnValidate() | |
{ | |
if (canvasContent != null) | |
{ | |
// sets the original CanvasScaler settings | |
var canvasScaler = GetComponent<CanvasScaler>(); | |
canvasScaler.uiScaleMode = CanvasScaler.ScaleMode.ScaleWithScreenSize; | |
this.referenceResolution = canvasContent.transform.GetComponent<RectTransform>().sizeDelta; | |
canvasScaler.referenceResolution = this.referenceResolution; | |
canvasScaler.screenMatchMode = CanvasScaler.ScreenMatchMode.Expand; | |
} | |
} | |
void Update() | |
{ | |
if (canvasContent != null && !keepProportions) | |
{ | |
// if requested scales the canvas content, creating a full-screen distorted version | |
float currentWidth = GetComponent<RectTransform>().sizeDelta.x; | |
float currentHeight = GetComponent<RectTransform>().sizeDelta.y; | |
float scaleX = currentWidth / referenceResolution.x; | |
float scaleY = currentHeight / referenceResolution.y; | |
canvasContent.transform.GetComponent<RectTransform>().localScale = new Vector2(scaleX, scaleY); | |
} | |
} | |
} |
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