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using UnityEngine;
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using UnityEngine.UI;
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using DG.Tweening;
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public class TestRenderTexture : MonoBehaviour
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{
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// 点击RawImage时，相对RawImage自身的坐标
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private Vector2 ClickPosInRawImg;
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// 画布
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public Canvas Canvas;
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// 预览映射相机
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public Camera PreviewCamera;
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public RawImage PreviewImage;
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public Camera UiCamera;
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private Vector3 MousePos;
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[Header("课程相关")]
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public Animator leftDoor;
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public Animator rightDoor;
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void Start() { }
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void Update()
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{
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if (Input.GetMouseButtonDown(0))
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{
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MousePos = Input.mousePosition;
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}
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if (MousePos != null)
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{
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CheckDrawRayLine(Canvas, Input.mousePosition, PreviewImage, PreviewCamera);
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}
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}
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/// <summary>
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/// 射线投射
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/// </summary>
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/// <param name="canvas">画布</param>
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/// <param name="mousePosition">当前Canvas下点击的鼠标位置</param>
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/// <param name="previewImage">预览图</param>
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/// <param name="previewCamera">预览映射图的摄像机</param>
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void CheckDrawRayLine(Canvas canvas, Vector3 mousePosition, RawImage previewImage, Camera previewCamera)
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{
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// 将UI相机下点击的UI坐标转为相对RawImage的坐标
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if (RectTransformUtility.ScreenPointToLocalPointInRectangle(PreviewImage.GetComponent<RectTransform>(), mousePosition, UiCamera, out ClickPosInRawImg))
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{
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// Lylibs.MessageUtil.Show("坐标：x=" + ClickPosInRawImg.x + ",y=" + ClickPosInRawImg.y);
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// Debug.Log("坐标：x=" + ClickPosInRawImg.x + ",y=" + ClickPosInRawImg.y);
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//获取预览图的长宽
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float imageWidth = previewImage.rectTransform.rect.width;
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float imageHeight = previewImage.rectTransform.rect.height;
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//获取预览图的坐标，此处RawImage的Pivot需为(0,0)，不然自己再换算下
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float localPositionX = previewImage.rectTransform.localPosition.x;//
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float localPositionY = previewImage.rectTransform.localPosition.y;
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localPositionX = 0f;
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localPositionY = 0;
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//获取在预览映射相机viewport内的坐标（坐标比例）
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float p_x = (ClickPosInRawImg.x - localPositionX) / imageWidth;
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float p_y = (ClickPosInRawImg.y - localPositionY) / imageHeight;
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//从视口坐标发射线
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Ray p_ray = previewCamera.ViewportPointToRay(new Vector2(p_x, p_y));
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RaycastHit p_hitInfo;
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if (Input.GetMouseButtonDown(0))
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{
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if (Physics.Raycast(p_ray, out p_hitInfo))
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{
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//显示射线，只有在scene视图中才能看到
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Debug.DrawLine(p_ray.origin, p_hitInfo.point);
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Debug.Log(p_hitInfo.transform.name);
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if (p_hitInfo.transform.gameObject.name == "Open")
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{
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Debug.Log("开门");
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leftDoor.transform.DOLocalRotate(new Vector3(0, -15, 0), 2f);
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rightDoor.transform.DOLocalRotate(new Vector3(0, 15, 0), 2f);
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}
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if (p_hitInfo.transform.gameObject.name == "Close")
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{
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Debug.Log("关门");
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leftDoor.transform.DOLocalRotate(new Vector3(0, -98, 0), 2f);
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rightDoor.transform.DOLocalRotate(new Vector3(0, 105, 0), 2f);
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}
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}
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}
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Debug.DrawRay(previewCamera.transform.position, p_ray.direction);
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}
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}
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} |
