/*
 * Copyright (c) Contributors to the Open 3D Engine Project.
 * For complete copyright and license terms please see the LICENSE at the root of this distribution.
 *
 * SPDX-License-Identifier: Apache-2.0 OR MIT
 *
 */


#ifndef CRYINCLUDE_EDITOR_OBJECTS_SUBOBJSELECTION_H
#define CRYINCLUDE_EDITOR_OBJECTS_SUBOBJSELECTION_H
#pragma once

//////////////////////////////////////////////////////////////////////////
// Sub Object element type.
//////////////////////////////////////////////////////////////////////////
enum ESubObjElementType
{
    SO_ELEM_NONE = 0,
    SO_ELEM_VERTEX,
    SO_ELEM_EDGE,
    SO_ELEM_FACE,
    SO_ELEM_POLYGON,
    SO_ELEM_UV,
};

//////////////////////////////////////////////////////////////////////////
enum ESubObjDisplayType
{
    SO_DISPLAY_WIREFRAME,
    SO_DISPLAY_FLAT,
    SO_DISPLAY_GEOMETRY,
};

//////////////////////////////////////////////////////////////////////////
// Options for sub-object selection.
//////////////////////////////////////////////////////////////////////////
struct SSubObjSelOptions
{
    bool bSelectByVertex;
    bool bIgnoreBackfacing;
    int nMatID;

    bool bSoftSelection;
    float fSoftSelFalloff;

    // Display options.
    bool bDisplayBackfacing;
    bool bDisplayNormals;
    float fNormalsLength;
    ESubObjDisplayType displayType;

    SSubObjSelOptions()
    {
        bSelectByVertex = false;
        bIgnoreBackfacing = false;
        bSoftSelection = false;
        nMatID = 0;
        fSoftSelFalloff = 1;

        bDisplayBackfacing = true;
        bDisplayNormals = false;
        displayType = SO_DISPLAY_FLAT;
        fNormalsLength = 0.4f;
    }
};

extern SSubObjSelOptions g_SubObjSelOptions;


//////////////////////////////////////////////////////////////////////////
enum ESubObjSelectionModifyType
{
    SO_MODIFY_UNSELECT,
    SO_MODIFY_MOVE,
    SO_MODIFY_ROTATE,
    SO_MODIFY_SCALE,
};

//////////////////////////////////////////////////////////////////////////
// This structure is passed when user is dragging sub object selection.
//////////////////////////////////////////////////////////////////////////
struct SSubObjSelectionModifyContext
{
    CViewport* view;
    ESubObjSelectionModifyType type;
    Vec3 vValue;
    Matrix34 worldRefFrame;
};

#endif // CRYINCLUDE_EDITOR_OBJECTS_SUBOBJSELECTION_H