E:/Download/ois-1.0RC1/includes/OISEffect.h

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/*
The zlib/libpng License

Copyright (c) 2006 Phillip Castaneda (pjcast -- www.wreckedgames.com)

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.
*/
#ifndef OIS_Effect_H
#define OIS_Effect_H

#include "OISPrereqs.h"

namespace OIS
{
        //Predeclare some Effect Property structs
        struct ForceEffect;
        struct ConstantEffect;
        struct RampEffect;
        struct PeriodicEffect;
        struct ConditionalEffect;

        class _OISExport Effect
        {
                Effect();
        public:
                enum EForce
                {
                        UnknownForce = 0,
                        ConstantForce,
                        RampForce,
                        PeriodicForce,
                        ConditionalForce,
                        CustomForce
                };

                enum EType
                {
                        //Type ----- Pairs with force:
                        Unknown = 0, //UnknownForce
                        Constant,    //ConstantForce
                        Ramp,        //RampForce
                        Square,      //PeriodicForce
                        Triangle,    //PeriodicForce
            Sine,        //PeriodicForce
                        SawToothUp,  //PeriodicForce
                        SawToothDown,//PeriodicForce
                        Friction,    //ConditionalForce
                        Damper,      //ConditionalForce
                        Inertia,     //ConditionalForce
                        Spring,      //ConditionalForce
                        Custom       //CustomForce
                };

                enum EDirection
                {
                        NorthWest,
                        North,
                        NorthEast,
                        East,
                        SouthEast,
                        South,
                        SouthWest,
                        West
                };

                Effect(EForce ef, EType et);
                virtual ~Effect();

                const EForce force;
                const EType type;

                //Infinite Time
                static const unsigned int OIS_INFINITE = 0xFFFFFFFF;

                //-------------------------------------------------------------------//
                //--- Set these variables before uploading or modifying an effect ---//

                //Direction to apply to the force - affects two axes+ effects
                EDirection direction;

                //Number of button triggering an effect (-1 means no trigger)
                short trigger_button;

                //Time to wait before an effect can be re-triggered (microseconds)
                unsigned int trigger_interval;

                //Duration of an effect (microseconds)
                unsigned int replay_length;

                //Time to wait before to start playing an effect (microseconds)
                unsigned int replay_delay;

                //Get the specific Force Effect. This should be cast depending on the EForce
                ForceEffect* getForceEffect() const;

                void setNumAxes(short nAxes);

                short getNumAxes() const;

                //------------- Library Internal -------------------------------------//
                mutable int _handle;
        protected:
                ForceEffect* effect; //Properties depend on EForce
                short axes;          //Number of axes to use in effect
        };

        //-----------------------------------------------------------------------------//
        struct _OISExport ForceEffect
        {
                virtual ~ForceEffect() {}
        };

        //-----------------------------------------------------------------------------//
        struct _OISExport Envelope : public ForceEffect
        {
                Envelope() : attackLength(0), attackLevel(0), fadeLength(0), fadeLevel(0) {}
#if defined(OIS_MSVC_COMPILER)
  #pragma warning (push)
  #pragma warning (disable : 4800)
#endif
                bool isUsed() { return attackLength | attackLevel | fadeLength | fadeLevel; }
#if defined(OIS_MSVC_COMPILER)
  #pragma warning (pop)
#endif

                unsigned short attackLength;
                unsigned short attackLevel;
                unsigned short fadeLength;
                unsigned short fadeLevel;
        };

        //-----------------------------------------------------------------------------//
        struct _OISExport ConstantEffect : public ForceEffect
        {
                ConstantEffect() : level(5000) {}

                struct Envelope envelope; //Optional envolope
                signed short level;       //-10K to +10k
        };

        //-----------------------------------------------------------------------------//
        struct _OISExport RampEffect : public ForceEffect
        {
                RampEffect() : startLevel(0), endLevel(0) {}

        struct Envelope envelope; //Optional envolope
                signed short startLevel;  //-10K to +10k
                signed short endLevel;    //-10K to +10k
        };

        //-----------------------------------------------------------------------------//
        struct _OISExport PeriodicEffect : public ForceEffect
        {
                PeriodicEffect() : magnitude(0), offset(0), phase(0), period(0) {}

                struct Envelope envelope;  //Optional Envelope

                unsigned short magnitude;  //0 to 10,0000
                signed short   offset;
                unsigned short phase;      //Position at which playback begins 0 to 35,999
                unsigned int   period;     //Period of effect (microseconds)
        };

        //-----------------------------------------------------------------------------//
        struct _OISExport ConditionalEffect : public ForceEffect
        {
                ConditionalEffect() :
            rightCoeff(0), leftCoeff(0), rightSaturation(0), leftSaturation(0),
                        deadband(0), center(0) {}

                signed short   rightCoeff;      //-10k to +10k (Positive Coeff)
                signed short   leftCoeff;       //-10k to +10k (Negative Coeff)

                unsigned short rightSaturation; //0 to 10k (Pos Saturation)
                unsigned short leftSaturation;  //0 to 10k (Neg Saturation)

                //Region around center in which the condition is not active, in the range
                //from 0 through 10,000
                unsigned short deadband;

                //(Offset in DX) -10k and 10k
                signed short center;
        };
}
#endif //OIS_Effect_H

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