Sample_TileMesh.h

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//
// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty.  In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
//    claim that you wrote the original software. If you use this software
//    in a product, an acknowledgment in the product documentation would be
//    appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
//    misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//
 
#pragma once
 
#include "Recast.h"
#include "Sample.h"
 
#include <cstdint>
 
class Sample_TileMesh : public Sample
{
private:
    bool buildAll = true;
    float totalBuildTimeMs = 0.0f;
 
    // Recast state
    rcConfig config{};
    unsigned char* triareas = nullptr;
    rcHeightfield* heightfield = nullptr;
    rcCompactHeightfield* compactHeightfield = nullptr;
    rcContourSet* contourSet = nullptr;
    rcPolyMesh* polyMesh = nullptr;
    rcPolyMeshDetail* detailPolyMesh = nullptr;
 
    enum class DrawMode : uint8_t
    {
        MESH,
        NAVMESH,
        NAVMESH_INVIS,
        NAVMESH_TRANS,
        NAVMESH_BVTREE,
        NAVMESH_NODES,
        NAVMESH_PORTALS,
        VOXELS,
        VOXELS_WALKABLE,
        COMPACT,
        COMPACT_DISTANCE,
        COMPACT_REGIONS,
        REGION_CONNECTIONS,
        RAW_CONTOURS,
        BOTH_CONTOURS,
        CONTOURS,
        POLYMESH,
        POLYMESH_DETAIL
    };
    DrawMode currentDrawMode = DrawMode::NAVMESH;
    static const char* drawModeNames[];
 
    int maxTiles = 0;
    int maxPolysPerTile = 0;
    int tileSize = 32;
 
    unsigned int tileColor = duRGBA(0, 0, 0, 32);
    float lastBuiltTileBoundsMin[3] = {0.0f, 0.0f, 0.0f};
    float lastBuiltTileBoundsMax[3] = {0.0f, 0.0f, 0.0f};
    float tileBuildTime = 0.0f;
    float tileMemUsage = 0.0f;
    int tileTriCount = 0;
 
    unsigned char* buildTileMesh(int tileX, int tileY, const float* boundsMin, const float* boundsMax, int& outDataSize);
 
    void cleanup();
    void UI_DrawModeOption(DrawMode drawMode, bool enabled);
 
public:
    Sample_TileMesh();
    ~Sample_TileMesh() override;
    Sample_TileMesh(const Sample_TileMesh&) = delete;
    Sample_TileMesh& operator=(const Sample_TileMesh&) = delete;
    Sample_TileMesh(const Sample_TileMesh&&) = delete;
    Sample_TileMesh& operator=(const Sample_TileMesh&&) = delete;
 
    // Sample methods
    void drawSettingsUI() override;
    void drawToolsUI() override;
    void drawDebugUI() override;
    void render() override;
    void renderOverlay() override;
    void onMeshChanged(InputGeom* geom) override;
    bool build() override;
    void collectSettings(BuildSettings& settings) override;
 
    void getTilePos(const float* pos, int& outTileX, int& outTileY) const;
 
    void buildTile(const float* pos);
    void removeTile(const float* pos);
    void buildAllTiles();
    void removeAllTiles() const;
};