TaiWan/Assets/Roaming/Scripts/Show/ShowBoxCollider.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
public class ShowBoxCollider : MonoBehaviour
{
    /// <summary>
    /// 测试用,直接显示热点框
    /// </summary>
    public bool Test;

    /// <summary>
    /// 热点框颜色
    /// </summary>
    public string ColorString = "#FF000030";    // #00000055

    Color clr;

    /// <summary>
    /// 是否显示热点框
    /// </summary>
    public bool showHotTip = true;

    /// <summary>
    /// 是否显示整个Box框
    /// </summary>
    public bool showBox = false;

    void Start()
    {
        ColorUtility.TryParseHtmlString(ColorString, out clr);

        //if(Application.isEditor)
        //{
        //    Test = true;
        //}
    }

    public bool showMask;

    BaseShow baseShow;

    private void OnMouseOver()
    {
        if (baseShow == null)
        {
            Invoke("OnMouseEnter", 0.3f);
        }
    }

    void OnMouseEnter() 
    {
        baseShow = GetComponent<BaseShow>();
        if (baseShow != null && baseShow.CanClick)
        {
            showMask = true;

            if (!string.IsNullOrEmpty(baseShow.info.Title) && BaseController.CanControl)
            {
                TipPlayerEx.Instance.ShowTip(baseShow.info);
            }
        }
    }

    void OnMouseExit()
    {
        showMask = false;

        TipPlayerEx.Instance.HideTip();
    }

    void OnRenderObject()
    {
        if ( Test || ( BaseController.CanControl && showHotTip && showMask))
        {
            var colliders = gameObject.GetComponents<BoxCollider>();
            if (colliders == null)
            {
                Destroy(this);
            }
            CreateLineMaterial();
            lineMaterial.SetPass(0);
            GL.PushMatrix();
            GL.MultMatrix(transform.localToWorldMatrix);
            //for (int i = 0; i < colliders.Length; i++)
            {
                // var col = colliders[i];
                var col = colliders[0];
                var c = col.center;
                var size = col.size;
                float rx = size.x / 2f;
                float ry = size.y / 2f;
                float rz = size.z / 2f;
                Vector3 p0, p1, p2, p3;
                Vector3 p4, p5, p6, p7;
                p0 = c + new Vector3(-rx, -ry, rz);
                p1 = c + new Vector3(rx, -ry, rz);
                p2 = c + new Vector3(rx, -ry, -rz);
                p3 = c + new Vector3(-rx, -ry, -rz);
                p4 = c + new Vector3(-rx, ry, rz);
                p5 = c + new Vector3(rx, ry, rz);
                p6 = c + new Vector3(rx, ry, -rz);
                p7 = c + new Vector3(-rx, ry, -rz);

                GL.Begin(GL.QUADS);
                GL.Color(clr);
                GL.Vertex(p0);
                GL.Vertex(p1);
                GL.Vertex(p2);
                GL.Vertex(p3);
                GL.End();

                if (showBox)
                {
                    GL.Begin(GL.QUADS);
                    GL.Color(clr);
                    GL.Vertex(p4);
                    GL.Vertex(p5);
                    GL.Vertex(p6);
                    GL.Vertex(p7);
                    GL.End();

                    GL.Begin(GL.QUADS);
                    GL.Color(clr);
                    GL.Vertex(p0);
                    GL.Vertex(p1);
                    GL.Vertex(p5);
                    GL.Vertex(p4);
                    GL.End();

                    GL.Begin(GL.QUADS);
                    GL.Color(clr);
                    GL.Vertex(p1);
                    GL.Vertex(p2);
                    GL.Vertex(p6);
                    GL.Vertex(p5);
                    GL.End();

                    GL.Begin(GL.QUADS);
                    GL.Color(clr);
                    GL.Vertex(p2);
                    GL.Vertex(p3);
                    GL.Vertex(p7);
                    GL.Vertex(p6);
                    GL.End();

                    GL.Begin(GL.QUADS);
                    GL.Color(clr);
                    GL.Vertex(p0);
                    GL.Vertex(p3);
                    GL.Vertex(p7);
                    GL.Vertex(p4);
                    GL.End();
                }

                #region 描边
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p0);
                //GL.Vertex(p1);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p1);
                //GL.Vertex(p2);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p2);
                //GL.Vertex(p3);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p0);
                //GL.Vertex(p3);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p4);
                //GL.Vertex(p5);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p5);
                //GL.Vertex(p6);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p6);
                //GL.Vertex(p7);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p4);
                //GL.Vertex(p7);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p0);
                //GL.Vertex(p4);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p1);
                //GL.Vertex(p5);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p2);
                //GL.Vertex(p6);
                //GL.End();
                //GL.Begin(GL.LINES);
                //GL.Color(Color.red);
                //GL.Vertex(p3);
                //GL.Vertex(p7);
                //GL.End();
                #endregion
            }
            GL.PopMatrix();
        }
    }

    static Material lineMaterial;

    static void CreateLineMaterial()
    {
        if (!lineMaterial)
        {
            // Unity has a built-in shader that is useful for drawing
            // simple colored things.
            Shader shader = Shader.Find("Hidden/Internal-Colored");
            lineMaterial = new Material(shader);
            lineMaterial.hideFlags = HideFlags.HideAndDontSave;
            // Turn on alpha blending
            lineMaterial.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
            lineMaterial.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
            // Turn backface culling off
            lineMaterial.SetInt("_Cull", (int)UnityEngine.Rendering.CullMode.Off);
            // Turn off depth writes
            lineMaterial.SetInt("_ZWrite", 0);
        }
    }
}