34 lines
991 B
C#
34 lines
991 B
C#
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// Copyright (c) Pixel Crushers. All rights reserved.
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using UnityEngine;
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namespace PixelCrushers
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{
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/// <summary>
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/// Keeps a RectTransform's bounds in view of the main camera.
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/// Works best on world space panels.
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/// </summary>
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[AddComponentMenu("")] // Use wrapper.
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public class KeepRectTransformOnscreen : MonoBehaviour
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{
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private Vector3 originalLocalPosition;
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private void Awake()
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{
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originalLocalPosition = transform.localPosition;
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}
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private void LateUpdate()
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{
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var mainCamera = Camera.main;
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if (mainCamera == null) return;
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transform.localPosition = originalLocalPosition;
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var pos = mainCamera.WorldToViewportPoint(transform.position);
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pos.x = Mathf.Clamp01(pos.x);
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pos.y = Mathf.Clamp01(pos.y);
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transform.position = mainCamera.ViewportToWorldPoint(pos);
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}
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}
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}
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