{"id":13786113,"url":"https://github.com/asyncrun/GuideMask","last_synced_at":"2025-05-11T22:30:40.839Z","repository":{"id":55063476,"uuid":"180771384","full_name":"asyncrun/GuideMask","owner":"asyncrun","description":"Unity 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**Unity UI强制引导框**\n\n**效果：**\n![在这里插入图片描述](https://github.com/asyncrun/GuideMask/blob/master/gif/GuideMask.gif)\n**主要代码：**\n\n```c\nusing System.Collections;\nusing System.Collections.Generic;\nusing UnityEngine;\nusing UnityEngine.UI;\n\npublic class Main : MonoBehaviour\n{\n    public static Main Self;\n\n    public RectTransform CanvasRectTransform;\n    public CanvasScaler CanvasScaler;\n\n\n    public RectTransform Target1;\n    public RectTransform Target2;\n    public RectTransform Target3;\n\n    public void Awake()\n    {\n        Self = this;\n        var guideMask = FindObjectOfType\u003cGuideMask\u003e();\n        guideMask.Init();\n    }\n\n\n    public void OnGUI()\n    {\n        if (GUILayout.Button(\"=============  Close GuideMask  =============\"))\n        {\n            GuideMask.Self.Close();\n        }\n        if (GUILayout.Button(\"=============  Target 1  =============\"))\n        {\n            GuideMask.Self.Play(Target1);\n        }\n        if (GUILayout.Button(\"=============  Target 2  =============\"))\n        {\n            GuideMask.Self.Play(Target2);\n        }\n        if (GUILayout.Button(\"=============  Target 3  =============\"))\n        {\n            GuideMask.Self.Play(Target3);\n        }\n    }\n}\n\n```\n\n```c\nusing System.Collections;\nusing System.Collections.Generic;\nusing UnityEngine;\nusing UnityEngine.UI;\n\npublic class GuideMask : MaskableGraphic, ICanvasRaycastFilter\n{\n    public static GuideMask Self;\n    private RectTransform _target;\n    private Vector2 _targetMin;\n    private Vector2 _targetMax;\n    private RectTransform _targetArea;\n\n    public bool IsRaycastLocationValid(Vector2 sp, Camera eventCamera)\n    {\n        return !RectTransformUtility.RectangleContainsScreenPoint(_targetArea, sp, eventCamera);\n    }\n\n    public void Close()\n    {\n        gameObject.SetActive(false);\n    }\n\n    public void Play(RectTransform target)\n    {\n        gameObject.SetActive(true);\n\n        var screenPoint = RectTransformUtility.WorldToScreenPoint(Camera.main,  target.position);\n\n        Vector2 localPoint;\n        if (!RectTransformUtility.ScreenPointToLocalPointInRectangle(rectTransform, screenPoint, Camera.main,\n            out localPoint))\n        {\n            Close();\n            return;\n        }\n        \n\n        _targetArea.anchorMax = target.anchorMax;\n        _targetArea.anchorMin = target.anchorMin;\n        _targetArea.anchoredPosition = target.anchoredPosition;\n        _targetArea.anchoredPosition3D = target.anchoredPosition3D;\n        _targetArea.offsetMax = target.offsetMax;\n        _targetArea.offsetMin = target.offsetMin;\n        _targetArea.pivot = target.pivot;\n        _targetArea.sizeDelta = target.sizeDelta;\n        _targetArea.localPosition = localPoint;\n\n        _targetArea.ForceUpdateRectTransforms();\n        _target = _targetArea;\n        _target.ForceUpdateRectTransforms();\n        LateUpdate();\n    }\n    \n\n    public void Init()\n    {\n        _targetArea = gameObject.transform.Find(\"TargetArea\") as RectTransform;\n        Self = this;\n        Close();\n    }\n    \n\n    protected override void OnPopulateMesh(VertexHelper toFill)\n    {\n        toFill.Clear();\n\n        var maskRect = rectTransform.rect;\n\n        var maskRectLeftTop = new Vector2(-maskRect.width / 2, maskRect.height / 2);\n        var maskRectLeftBottom = new Vector2(-maskRect.width / 2, -maskRect.height / 2);\n        var maskRectRightTop = new Vector2(maskRect.width / 2, maskRect.height / 2);\n        var maskRectRightBottom = new Vector2(maskRect.width / 2, -maskRect.height / 2);\n\n        var targetRectLeftTop = new Vector2(_targetMin.x, _targetMax.y);\n        var targetRectLeftBottom = _targetMin;\n        var targetRectRightTop = _targetMax;\n        var targetRectRightBottom = new Vector2(_targetMax.x, _targetMin.y);\n        \n        toFill.AddVert(maskRectLeftBottom, color, Vector2.zero);\n        toFill.AddVert(targetRectLeftBottom, color, Vector2.zero);\n        toFill.AddVert(targetRectRightBottom, color, Vector2.zero);\n        toFill.AddVert(maskRectRightBottom, color, Vector2.zero);\n        toFill.AddVert(targetRectRightTop, color, Vector2.zero);\n        toFill.AddVert(maskRectRightTop, color, Vector2.zero);\n        toFill.AddVert(targetRectLeftTop, color, Vector2.zero);\n        toFill.AddVert(maskRectLeftTop, color, Vector2.zero);\n        \n        toFill.AddTriangle(0, 1, 2);\n        toFill.AddTriangle(2, 3, 0);\n        toFill.AddTriangle(3, 2, 4);\n        toFill.AddTriangle(4, 5, 3);\n        toFill.AddTriangle(6, 7, 5);\n        toFill.AddTriangle(5, 4, 6);\n        toFill.AddTriangle(7, 6, 1);\n        toFill.AddTriangle(1, 0, 7);\n    }\n    \n    \n    void LateUpdate()\n    {\n        RefreshView();\n    }\n    \n    private void RefreshView()\n    {\n        Vector2 newMin;\n        Vector2 newMax;\n        if (_target != null \u0026\u0026 _target.gameObject.activeSelf)\n        {\n            var bounds = RectTransformUtility.CalculateRelativeRectTransformBounds(transform, _target);\n            newMin = bounds.min;\n            newMax = bounds.max;\n        }\n        else\n        {\n            newMin = Vector2.zero;\n            newMax = Vector2.zero;\n        }\n        if (_targetMin != newMin || _targetMax != newMax)\n        {\n            _targetMin = newMin;\n            _targetMax = newMax;\n            SetAllDirty();\n        }\n    }\n}\n\n```\n\n**Github地址：**[https://github.com/asyncrun/GuideMask](https://github.com/asyncrun/GuideMask)\n\nUI背景图随机网上下载，侵权告知马上删除 [***下载地址***](https://www.behance.net/gallery/31436645/Mobile-Game-UI-Portfolio)\n","funding_links":[],"categories":["Mask"],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fasyncrun%2FGuideMask","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fasyncrun%2FGuideMask","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fasyncrun%2FGuideMask/lists"}