PxVehicleUtilTelemetry.h

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/*
 * Copyright (c) 2008-2015, NVIDIA CORPORATION.  All rights reserved.
 *
 * NVIDIA CORPORATION and its licensors retain all intellectual property
 * and proprietary rights in and to this software, related documentation
 * and any modifications thereto.  Any use, reproduction, disclosure or
 * distribution of this software and related documentation without an express
 * license agreement from NVIDIA CORPORATION is strictly prohibited.
 */
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.  

#ifndef PX_VEHICLE_UTILSTELEMETRY_H
#define PX_VEHICLE_UTILSTELEMETRY_H

#include "vehicle/PxVehicleSDK.h"
#include "foundation/PxSimpleTypes.h"
#include "foundation/PxVec3.h"

#ifndef PX_DOXYGEN
namespace physx
{
#endif

#if PX_DEBUG_VEHICLE_ON

class PxVehicleGraphDesc
{

    friend class PxVehicleGraph;

    PxVehicleGraphDesc();

    PxReal mPosX;

    PxReal mPosY;

    PxReal mSizeX;

    PxReal mSizeY;

    PxVec3 mBackgroundColor;

    PxReal mAlpha;

private:

    bool isValid() const;
};

struct PxVehicleGraphChannelDesc
{
public:

    friend class PxVehicleGraph;

    PxVehicleGraphChannelDesc();

    PxReal mMinY;

    PxReal mMaxY;

    PxReal mMidY;

    PxVec3 mColorLow;

    PxVec3 mColorHigh;

    char* mTitle;

private:

    bool isValid() const;
};

struct PxVehicleWheelGraphChannel
{
    enum Enum
    {
        eJOUNCE=0,
        eSUSPFORCE,
        eTIRELOAD,
        eNORMALIZED_TIRELOAD,
        eWHEEL_OMEGA, 
        eTIRE_FRICTION,
        eTIRE_LONG_SLIP,
        eNORM_TIRE_LONG_FORCE,
        eTIRE_LAT_SLIP,
        eNORM_TIRE_LAT_FORCE,
        eNORM_TIRE_ALIGNING_MOMENT,
        eMAX_NB_WHEEL_CHANNELS
    };
};

struct PxVehicleDriveGraphChannel
{
    enum Enum
    {
        eENGINE_REVS=0,
        eENGINE_DRIVE_TORQUE,
        eCLUTCH_SLIP,
        eACCEL_CONTROL,                 //TANK_ACCEL
        eBRAKE_CONTROL,                 //TANK_BRAKE_LEFT
        eHANDBRAKE_CONTROL,             //TANK_BRAKE_RIGHT
        eSTEER_LEFT_CONTROL,            //TANK_THRUST_LEFT
        eSTEER_RIGHT_CONTROL,           //TANK_THRUST_RIGHT
        eGEAR_RATIO,
        eMAX_NB_DRIVE_CHANNELS
    };
};

struct PxVehicleGraphType
{
    enum Enum
    {
        eWHEEL=0,
        eDRIVE
    };
};


class PxVehicleGraph
{
public:

    friend class PxVehicleTelemetryData;
    friend class PxVehicleUpdate;

    enum
    {
        eMAX_NB_SAMPLES=256
    };

    enum
    {
        eMAX_NB_TITLE_CHARS=256
    };

    enum
    {
        eMAX_NB_CHANNELS=12
    };

    void setup(const PxVehicleGraphDesc& desc, const PxVehicleGraphType::Enum graphType);

    void clearRecordedChannelData();

    const PxVec3& getBackgroundColor() const {return mBackgroundColor;}

    PxReal getBackgroundAlpha() const {return mBackgroundAlpha;}

    void getBackgroundCoords(PxReal& xMin, PxReal& yMin, PxReal& xMax, PxReal& yMax) const {xMin = mBackgroundMinX;xMax = mBackgroundMaxX;yMin = mBackgroundMinY;yMax = mBackgroundMaxY;}

    void computeGraphChannel(const PxU32 channel, PxReal* xy, PxVec3* colors, char* title) const;

    PxF32 getLatestValue(const PxU32 channel) const ;

private:

    //Min and max of each sample.
    PxReal mChannelMinY[eMAX_NB_CHANNELS];
    PxReal mChannelMaxY[eMAX_NB_CHANNELS];
    //Discriminate between high and low values with different colors.
    PxReal mChannelMidY[eMAX_NB_CHANNELS];
    //Different colors for values than midY and less than midY.
    PxVec3 mChannelColorLow[eMAX_NB_CHANNELS];
    PxVec3 mChannelColorHigh[eMAX_NB_CHANNELS];
    //Title of graph
    char mChannelTitle[eMAX_NB_CHANNELS][eMAX_NB_TITLE_CHARS];
    //Graph data.
    PxReal mChannelSamples[eMAX_NB_CHANNELS][eMAX_NB_SAMPLES];

    //Background color,alpha,coords
    PxVec3 mBackgroundColor;
    PxReal mBackgroundAlpha;
    PxReal mBackgroundMinX;
    PxReal mBackgroundMaxX;
    PxReal mBackgroundMinY;
    PxReal mBackgroundMaxY;

    PxU32 mSampleTide;

    PxU32 mNbChannels;

    PxU32 mPad[2];


    void setup
        (const PxF32 graphSizeX, const PxF32 graphSizeY,
        const PxF32 engineGraphPosX, const PxF32 engineGraphPosY,
        const PxF32* const wheelGraphPosX, const PxF32* const wheelGraphPosY,
        const PxVec3& backgroundColor, const PxVec3& lineColorHigh, const PxVec3& lineColorLow);

    void updateTimeSlice(const PxReal* const samples);

    void setChannel(PxVehicleGraphChannelDesc& desc, const PxU32 channel);

    void setupEngineGraph
        (const PxF32 sizeX, const PxF32 sizeY, const PxF32 posX, const PxF32 posY, 
        const PxVec3& backgoundColor, const PxVec3& lineColorHigh, const PxVec3& lineColorLow);

    void setupWheelGraph
        (const PxF32 sizeX, const PxF32 sizeY, const PxF32 posX, const PxF32 posY, 
        const PxVec3& backgoundColor, const PxVec3& lineColorHigh, const PxVec3& lineColorLow);

    PxVehicleGraph();
    ~PxVehicleGraph();
};
PX_COMPILE_TIME_ASSERT(PxU32(PxVehicleGraph::eMAX_NB_CHANNELS) >= PxU32(PxVehicleWheelGraphChannel::eMAX_NB_WHEEL_CHANNELS) && PxU32(PxVehicleGraph::eMAX_NB_CHANNELS) >= PxU32(PxVehicleDriveGraphChannel::eMAX_NB_DRIVE_CHANNELS));
PX_COMPILE_TIME_ASSERT(0==(sizeof(PxVehicleGraph) & 15));

class PxVehicleTelemetryData
{
public:

    friend class PxVehicleUpdate;

    static PxVehicleTelemetryData* allocate(const PxU32 nbWheels);

    void free();

    void setup
        (const PxReal graphSizeX, const PxReal graphSizeY,
         const PxReal engineGraphPosX, const PxReal engineGraphPosY,
         const PxReal* const wheelGraphPosX, const PxReal* const wheelGraphPosY,
         const PxVec3& backGroundColor, const PxVec3& lineColorHigh, const PxVec3& lineColorLow);

    void clear();

    const PxVehicleGraph& getEngineGraph() const {return *mEngineGraph;}

    PxU32 getNbWheelGraphs() const {return mNbActiveWheels;}

    const PxVehicleGraph& getWheelGraph(const PxU32 k) const {return mWheelGraphs[k];}

    const PxVec3* getTireforceAppPoints() const {return mTireforceAppPoints;}

    const PxVec3* getSuspforceAppPoints() const {return mSuspforceAppPoints;}

private:

    PxVehicleGraph* mEngineGraph;

    PxVehicleGraph* mWheelGraphs;

    PxVec3* mTireforceAppPoints;

    PxVec3* mSuspforceAppPoints;

    PxU32 mNbActiveWheels;

    PxU32 mPad[3];

private:

    PxVehicleTelemetryData(){}
    ~PxVehicleTelemetryData(){}
};

PX_COMPILE_TIME_ASSERT(0==(sizeof(PxVehicleTelemetryData) & 15));

#endif //PX_DEBUG_VEHICLE_ON

//#endif // PX_DEBUG_VEHICLE_ON

#ifndef PX_DOXYGEN
} // namespace physx
#endif

#endif //PX_VEHICLE_UTILSTELEMETRY_H