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using UnityEngine;

using System.Collections;

using UnityEngine.UI;

#if UNITY_EDITOR

using UnityEditor;

#endif

[RequireComponent(typeof(PolygonCollider2D))]

public class UIPolygon : Image

{

????private PolygonCollider2D _polygon = null;

????private PolygonCollider2D polygon

????{

????????get{

????????????if(_polygon == null )

????????????????_polygon = GetComponent<PolygonCollider2D>();

????????????return _polygon;

????????}

????}

????protected UIPolygon()

????{

????????useLegacyMeshGeneration = true;

????}

????protected override void OnPopulateMesh(VertexHelper vh)

????{

????????vh.Clear();

????}

????public override bool IsRaycastLocationValid(Vector2 screenPoint, Camera eventCamera)

????{

????????return polygon.OverlapPoint( eventCamera.ScreenToWorldPoint(screenPoint));

????}

? ?

#if UNITY_EDITOR

????protected override void Reset()

????{

????????base.Reset();

????????transform.localPosition = Vector3.zero;

????????float w = (rectTransform.sizeDelta.x *0.5f) + 0.1f;

????????float h = (rectTransform.sizeDelta.y*0.5f)??+ 0.1f;

????????polygon.points = new Vector2[]

????????{

????????????new Vector2(-w,-h),

????????????new Vector2(w,-h),

????????????new Vector2(w,h),

????????????new Vector2(-w,h)

??????????};

????}

#endif

}

#if UNITY_EDITOR

[CustomEditor(typeof(UIPolygon), true)]

public class UIPolygonInspector : Editor

{

????public override void OnInspectorGUI()

????{

????}

}

#endif