//EDITOR CLASS TO CREATE QUAD MESH WITH SPECIFIED ANCHOR//Created by Alan Thorn on 23.01.2013//------------------------------------------------using UnityEngine;using UnityEditor;using System.IO;//------------------------------------------------//Run from unity editor. This class should be placed in Editor folderpublic class CreateQuad : ScriptableWizard{    //Anchor point for created quad    public enum AnchorPoint    {        TopLeft,        TopMiddle,        TopRight,        RightMiddle,        BottomRight,        BottomMiddle,        BottomLeft,        LeftMiddle,        Center,        Custom    }        //Name of Quad Asset    public string MeshName = "Quad";        //Game Object Name    public string GameObjectName = "Plane_Object";        //Name of asset folder to contain quad asset when created    public string AssetFolder = "Assets";        //Width of quad in world units (pixels)    public float Width = 1.0f;        //Height of quad in world units (pixels)    public float Height = 1.0f;        //Position of Anchor    public AnchorPoint Anchor = AnchorPoint.Center;        //Horz Position of Anchor on Plane    public float AnchorX = 0.5f;        //Vert Position of Anchor on Plane    public float AnchorY = 0.5f;    //------------------------------------------------    [MenuItem("GameObject/Create Other/Custom Plane")]    static void CreateWizard()    {        ScriptableWizard.DisplayWizard("Create Plane",typeof(CreateQuad));    }        //------------------------------------------------    //Function called when window is created    void OnEnable()    {        //Call selection change to load asset path from selected, if any        OnSelectionChange();    }    //------------------------------------------------    //Called 10 times per second    void OnInspectorUpdate()    {        switch(Anchor)        {            //Anchor is set to top-left            case AnchorPoint.TopLeft:                AnchorX = 0.0f * Width;                AnchorY = 1.0f * Height;            break;                        //Anchor is set to top-middle            case AnchorPoint.TopMiddle:                AnchorX = 0.5f * Width;                AnchorY = 1.0f * Height;            break;                        //Anchor is set to top-right            case AnchorPoint.TopRight:                AnchorX = 1.0f * Width;                AnchorY = 1.0f * Height;            break;                        //Anchor is set to right-middle            case AnchorPoint.RightMiddle:                AnchorX = 1.0f * Width;                AnchorY = 0.5f * Height;            break;                        //Anchor is set to Bottom-Right            case AnchorPoint.BottomRight:                AnchorX = 1.0f * Width;                AnchorY = 0.0f * Height;            break;                        //Anchor is set to Bottom-Middle            case AnchorPoint.BottomMiddle:                AnchorX = 0.5f * Width;                AnchorY = 0.0f * Height;            break;                        //Anchor is set to Bottom-Left            case AnchorPoint.BottomLeft:                AnchorX = 0.0f * Width;                AnchorY = 0.0f * Height;            break;                        //Anchor is set to Left-Middle            case AnchorPoint.LeftMiddle:                AnchorX = 0.0f * Width;                AnchorY = 0.5f * Height;            break;                        //Anchor is set to center            case AnchorPoint.Center:                AnchorX = 0.5f * Width;                AnchorY = 0.5f * Height;            break;                        case AnchorPoint.Custom:            default:            break;        }    }    //------------------------------------------------    //Function called when window is updated    void OnSelectionChange()    {        //Check user selection in editor - check for folder selection        if (Selection.objects != null && Selection.objects.Length == 1)        {            //Get path from selected asset            AssetFolder = Path.GetDirectoryName(AssetDatabase.GetAssetPath(Selection.objects[0]));        }    }    //------------------------------------------------    //Function to create quad mesh    void OnWizardCreate()    {                //Create Vertices        Vector3[] Vertices = new Vector3[4];                //Create UVs        Vector2[] UVs = new Vector2[4];                //Two triangles of quad        int[] Triangles = new int[6];                //Assign vertices based on pivot                //Bottom-left        Vertices[0].x = -AnchorX;        Vertices[0].y = -AnchorY;                //Bottom-right        Vertices[1].x = Vertices[0].x+Width;        Vertices[1].y = Vertices[0].y;                    //Top-left        Vertices[2].x = Vertices[0].x;        Vertices[2].y = Vertices[0].y+Height;                //Top-right        Vertices[3].x = Vertices[0].x+Width;        Vertices[3].y = Vertices[0].y+Height;                //Assign UVs        //Bottom-left        UVs[0].x=0.0f;        UVs[0].y=0.0f;                //Bottom-right        UVs[1].x=1.0f;        UVs[1].y=0.0f;                //Top-left        UVs[2].x=0.0f;        UVs[2].y=1.0f;                //Top-right        UVs[3].x=1.0f;        UVs[3].y=1.0f;                //Assign triangles        Triangles[0]=3;        Triangles[1]=1;        Triangles[2]=2;                Triangles[3]=2;        Triangles[4]=1;        Triangles[5]=0;                //Generate mesh        Mesh mesh = new Mesh();        mesh.name = MeshName;        mesh.vertices = Vertices;        mesh.uv = UVs;        mesh.triangles = Triangles;        mesh.RecalculateNormals();                //Create asset in database        AssetDatabase.CreateAsset(mesh, AssetDatabase.GenerateUniqueAssetPath(AssetFolder + "/" + MeshName) + ".asset");        AssetDatabase.SaveAssets();                //Create plane game object        GameObject plane = new GameObject(GameObjectName);        MeshFilter meshFilter = (MeshFilter)plane.AddComponent(typeof(MeshFilter));        plane.AddComponent(typeof(MeshRenderer));                //Assign mesh to mesh filter        meshFilter.sharedMesh = mesh;        mesh.RecalculateBounds();                //Add a box collider component        plane.AddComponent(typeof(BoxCollider));    }        //------------------------------------------------}