/** @file

    @brief Header

    Must be c-safe!

    @date 2014

    @author

    Sensics, Inc.

    <http://sensics.com/osvr>

*/

/*

// Copyright 2014 Sensics, Inc.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

*/

#ifndef INCLUDED_Vec3C_h_GUID_BF4E98ED_74CF_4785_DB61_109A00BA74DE

#define INCLUDED_Vec3C_h_GUID_BF4E98ED_74CF_4785_DB61_109A00BA74DE

/* Internal Includes */

#include <osvr/Util/APIBaseC.h>

/* Library/third-party includes */

/* none */

/* Standard includes */

/* none */

OSVR_EXTERN_C_BEGIN

/** @addtogroup UtilMath

    @{

*/

/** @brief A structure defining a 3D vector, often a position/translation.

*/

typedef struct OSVR_Vec3 {

    /** @brief Internal array data. */

    double data[3];

} OSVR_Vec3;

#define OSVR_VEC_MEMBER(COMPONENT, INDEX)                                      \

    /** @brief Accessor for Vec3 component COMPONENT */                        \

    OSVR_INLINE double osvrVec3Get##COMPONENT(OSVR_Vec3 const *v) {            \

        return v->data[INDEX];                                                 \

    }                                                                          \

Unexecuted instantiation: osvrVec3GetX

Unexecuted instantiation: osvrVec3GetY

Unexecuted instantiation: osvrVec3GetZ

    /** @brief Setter for Vec3 component COMPONENT */                          \

    OSVR_INLINE void osvrVec3Set##COMPONENT(OSVR_Vec3 *v, double val) {        \

        v->data[INDEX] = val;                                                  \

    }

Unexecuted instantiation: osvrVec3SetX

Unexecuted instantiation: osvrVec3SetY

Unexecuted instantiation: osvrVec3SetZ

OSVR_VEC_MEMBER(X, 0)

OSVR_VEC_MEMBER(Y, 1)

OSVR_VEC_MEMBER(Z, 2)

#undef OSVR_VEC_MEMBER

/** @brief Set a Vec3 to the zero vector */

OSVR_INLINE void osvrVec3Zero(OSVR_Vec3 *v) {

    osvrVec3SetX(v, 0);

    osvrVec3SetY(v, 0);

    osvrVec3SetZ(v, 0);

}

/** @} */

OSVR_EXTERN_C_END

#ifdef __cplusplus

template <typename StreamType>

inline StreamType &operator<<(StreamType &os, OSVR_Vec3 const &vec) {

    os << "(" << vec.data[0] << ", " << vec.data[1] << ", " << vec.data[2]

       << ")";

    return os;

}

#endif

#endif