77 lines
2.2 KiB
C#
77 lines
2.2 KiB
C#
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using NUnit.Framework;
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using UnityEditor;
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using UnityEngine;
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using System.Linq;
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public class RectangleContainsScreenPointTest : MonoBehaviour
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{
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RectTransform m_RectTransform;
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Camera m_MainCamera;
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GameObject m_CanvasObject;
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GameObject m_RectObject;
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[SetUp]
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public void Setup()
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{
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m_MainCamera = new GameObject("MainCamera").AddComponent<Camera>();
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m_MainCamera.transform.position = new Vector3(0, 1, -10);
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m_MainCamera.depth = -1;
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m_CanvasObject = new GameObject("Canvas");
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Canvas m_canvas = m_CanvasObject.AddComponent<Canvas>();
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m_canvas.transform.localPosition = new Vector3(0, 1, 90);
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m_canvas.renderMode = RenderMode.ScreenSpaceCamera;
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m_canvas.worldCamera = m_MainCamera;
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m_RectObject = new GameObject("RectTransformObject");
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m_RectTransform = m_RectObject.AddComponent<RectTransform>();
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m_RectTransform.SetParent(m_CanvasObject.transform, false);
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}
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[TearDown]
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public void TearDown()
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{
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Destroy(m_MainCamera.gameObject);
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Destroy(m_CanvasObject);
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Destroy(m_RectObject);
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Destroy(m_RectTransform);
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}
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[Test]
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public void RectangleContainsScreenPoint_ReturnsTrue_ForAllPointsInTheRectangle()
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{
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var fourCourners = new Vector3[4];
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m_RectTransform.GetWorldCorners(fourCourners);
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var worldCorners = fourCourners
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.Select(p => m_MainCamera.WorldToScreenPoint(p))
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.ToArray();
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var minValue = new Vector2(
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x: worldCorners.Min(p => p.x),
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y: worldCorners.Min(p => p.y));
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var maxValue = new Vector2(
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x: worldCorners.Max(p => p.x),
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y: worldCorners.Max(p => p.y));
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var steps = 10000;
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bool ErrorHit = false;
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for (float i = 0; i < steps; i++)
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{
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var point = Vector2.Lerp(minValue, maxValue, i / steps);
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if (!RectTransformUtility.RectangleContainsScreenPoint(m_RectTransform, point, m_MainCamera))
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{
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ErrorHit = true;
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Assert.Fail("Rectangle does not Contains ScreenPoint");
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}
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}
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if (!ErrorHit)
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{
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Assert.Pass();
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}
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}
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}
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