GainputHelpers.h

#ifndef GAINPUTHELPERS_H_
#define GAINPUTHELPERS_H_

#include <gainput/GainputLog.h>

namespace gainput
{

    inline void HandleButton(InputDevice& device, InputState& state, InputDeltaState* delta, DeviceButtonId buttonId, bool value)
    {
#ifdef GAINPUT_DEBUG
        if (value != state.GetBool(buttonId))
        {
            GAINPUT_LOG("Button changed: %d, %i\n", buttonId, value);
        }
#endif

        if (delta)
        {
            const bool oldValue = state.GetBool(buttonId);
            if (value != oldValue)
            {
                delta->AddChange(device.GetDeviceId(), buttonId, oldValue, value);
            }
        }

        state.Set(buttonId, value);
    }

    inline void HandleAxis(InputDevice& device, InputState& state, InputDeltaState* delta, DeviceButtonId buttonId, float value)
    {
        const float deadZone = device.GetDeadZone(buttonId);
        if (deadZone > 0.0f)
        {
            const float absValue = Abs(value);
            const float sign = value < 0.0f ? -1.0f : 1.0f;
            if (absValue < deadZone)
            {
                value = 0.0f;
            }
            else
            {
                value -= sign*deadZone;
                value *= 1.0f / (1.0f - deadZone);
            }
        }
#ifdef GAINPUT_DEBUG
        if (value != state.GetFloat(buttonId))
        {
            GAINPUT_LOG("Axis changed: %d, %f\n", buttonId, value);
        }
#endif

        if (delta)
        {
            const float oldValue = state.GetFloat(buttonId);
            if (value != oldValue)
            {
                delta->AddChange(device.GetDeviceId(), buttonId, oldValue, value);
            }
        }

        state.Set(buttonId, value);
    }

}

#endif