SampleInterfaces.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 "DebugDraw.h"
#include "PerfTimer.h"
#include "Recast.h"
#include "RecastDump.h"
 
#include <array>
#include <string>
#include <vector>
 
// These are example implementations of various interfaces used in Recast and Detour.
 
class BuildContext final : public rcContext
{
    std::array<TimeVal, RC_MAX_TIMERS> startTime;
    std::array<TimeVal, RC_MAX_TIMERS> accTime;
 
    std::vector<std::string> logMessages;
 
public:
    BuildContext();
 
    void dumpLog(const char* format, ...);
    [[nodiscard]] int getLogCount() const;
    [[nodiscard]] const char* getLogText(int i) const;
 
protected:
    void doResetLog() override;
    void doLog(rcLogCategory category, const char* msg, const int len) override;
    void doResetTimers() override;
    void doStartTimer(rcTimerLabel label) override;
    void doStopTimer(rcTimerLabel label) override;
    [[nodiscard]] int doGetAccumulatedTime(rcTimerLabel label) const override;
};
 
class DebugDrawGL : public duDebugDraw
{
public:
    void depthMask(bool state) override;
    void texture(bool state) override;
    void begin(duDebugDrawPrimitives prim, float size = 1.0f) override;
    void vertex(const float* pos, unsigned int color) override;
    void vertex(const float* pos, unsigned int color, const float* uv) override;
    void vertex(float x, float y, float z, unsigned int color) override;
    void vertex(float x, float y, float z, unsigned int color, float u, float v) override;
    void end() override;
};
 
class FileIO final : public duFileIO
{
public:
    FileIO() = default;
    FileIO(const FileIO&) = delete;
    FileIO& operator=(const FileIO&) = delete;
    FileIO(FileIO&&) = default;
    FileIO& operator=(FileIO&&) = default;
    ~FileIO() override;
 
    bool openForWrite(const char* path);
    bool openForRead(const char* path);
    [[nodiscard]] bool isWriting() const override;
    [[nodiscard]] bool isReading() const override;
    bool write(const void* ptr, size_t size) override;
    bool read(void* ptr, size_t size) override;
    size_t getFileSize() const;
 
    static void scanDirectory(const std::string& path, const std::string& ext, std::vector<std::string>& fileList);
private:
    FILE* fp = nullptr;
    enum class Mode { none, reading, writing };
    Mode mode = Mode::none;
};