34 lines
1.2 KiB
C#
34 lines
1.2 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public static class CanvasExtensions
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{
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public static Vector3 WorldToCanvasPosition(this Canvas canvas, Vector3 worldPosition, Camera camera = null)
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{
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if (camera == null)
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camera = Camera.main;
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var viewportPosition = camera.WorldToViewportPoint(worldPosition);
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return canvas.ViewportToCanvasPosition(viewportPosition);
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}
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public static Vector3 ScreenToCanvasPosition(this Canvas canvas, Vector3 screenPosition)
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{
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var viewportPosition = new Vector3(screenPosition.x / Screen.width,
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screenPosition.y / Screen.height,
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0);
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return canvas.ViewportToCanvasPosition(viewportPosition);
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}
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public static Vector3 ViewportToCanvasPosition(this Canvas canvas, Vector3 viewportPosition)
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{
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var centerBasedViewPortPosition = viewportPosition - new Vector3(0.5f, 0.5f, 0);
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var canvasRect = canvas.GetComponent<RectTransform>();
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var scale = canvasRect.sizeDelta;
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return Vector3.Scale(centerBasedViewPortPosition, scale);
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}
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}
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