trianglefromposquerydisplaylistbuilder.h

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/*
* Copyright 2016 Autodesk, Inc. All rights reserved.
* Use of this software is subject to the terms of the Autodesk license agreement and any attachments or Appendices thereto provided at the time of installation or download,
* or which otherwise accompanies this software in either electronic or hard copy form, or which is signed by you and accepted by Autodesk.
*/

#pragma once

#include "gwnavruntime/visualsystem/displaylist.h"
#include "gwnavruntime/queries/blobs/trianglefromposqueryblob.h"

namespace Kaim
{

class TriangleFromPosQueryDisplayListBuilder : public IDisplayListBuilder
{
public:
    TriangleFromPosQueryDisplayListBuilder() { Clear(); }

private:
    const TriangleFromPosQueryBlob* m_query;
    TriangleFromPosQueryOutputBlob* m_output;
    DisplayList* m_displayList;

private:
    void Clear()
    {
        m_query  = nullptr;
        m_output = nullptr;
        m_displayList = nullptr;
    }

    void StartText(Color color, const char* text)
    {
        m_displayList->PushText(m_query->m_inputPos3f.OffsetZ(1.0f), color, text);
    }

    void StartPoint(Color color)
    {
        m_displayList->PushPoint(m_query->m_inputPos3f, color);
    }

    void StartTriangle(Color color)
    {
        m_displayList->PushTriangle(m_output->m_resultTrianglePtr.m_triangle.OffsetZ(0.1f), color);
    }

    void PushSpatializationRange(Color color)
    {
        const KyFloat32 above = m_query->m_positionSpatializationRange.m_rangeAbovePosition;
        const KyFloat32 below = m_query->m_positionSpatializationRange.m_rangeBelowPosition;
        const Vec3f& rangeTop    = m_query->m_inputPos3f.OffsetZ(above);
        const Vec3f& rangeBottom = m_query->m_inputPos3f.OffsetZ(-below);
        m_displayList->PushLine(rangeBottom, rangeTop, color);
    }

    virtual void DoBuild(DisplayList* displayList, char* blob)
    {
        m_query = (TriangleFromPosQueryBlob*)blob;
        m_output = m_query->m_queryOutput.Ptr();
        m_displayList = displayList;
        if (m_output == nullptr)
            return;

        switch ((TriangleFromPosQueryResult)m_output->m_result)
        {
        case TRIANGLEFROMPOS_NOT_INITIALIZED:
            break;
        case TRIANGLEFROMPOS_NOT_PROCESSED:
            StartPoint(Color::Orange);
            PushSpatializationRange(Color::Cyan);
            break;
        case TRIANGLEFROMPOS_DONE_NO_TRIANGLE_FOUND:
            StartPoint(Color::Red);
            StartText(Color::Red, "No triangle found!");
            PushSpatializationRange(Color::Cyan);
            break;
        case TRIANGLEFROMPOS_DONE_LACK_OF_WORKING_MEMORY:
            StartPoint(Color::Red);
            StartText(Color::Red, "Lack of working memory!");
            PushSpatializationRange(Color::Cyan);
            break;
        case TRIANGLEFROMPOS_DONE_TRIANGLE_FOUND:
            StartPoint(Color::Green);
            StartTriangle(Color::Green);
            PushSpatializationRange(Color::Cyan);
            break;
        }
    }
};

}