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/** @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_Vec2C_h_GUID_F9715DE4_2649_4182_0F4C_D62121235D5F
#define INCLUDED_Vec2C_h_GUID_F9715DE4_2649_4182_0F4C_D62121235D5F
/* 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 2D vector, which represents position
*/
typedef struct OSVR_Vec2 {
/** @brief Internal array data. */
double data[2];
} OSVR_Vec2;
#define OSVR_VEC_MEMBER(COMPONENT, INDEX) \
/** @brief Accessor for Vec2 component COMPONENT */ \
OSVR_INLINE double osvrVec2Get##COMPONENT(OSVR_Vec2 const *v) { \
return v->data[INDEX]; \
} \
/** @brief Setter for Vec2 component COMPONENT */ \
OSVR_INLINE void osvrVec2Set##COMPONENT(OSVR_Vec2 *v, double val) { \
v->data[INDEX] = val; \
}
OSVR_VEC_MEMBER(X, 0)
OSVR_VEC_MEMBER(Y, 1)
#undef OSVR_VEC_MEMBER
/** @brief Set a Vec2 to the zero vector */
OSVR_INLINE void osvrVec2Zero(OSVR_Vec2 *v) {
osvrVec2SetX(v, 0);
osvrVec2SetY(v, 0);
}
/** @} */
OSVR_EXTERN_C_END
#ifdef __cplusplus
template <typename StreamType>
inline StreamType &operator<<(StreamType &os, OSVR_Vec2 const &vec) {
os << "(" << vec.data[0] << ", " << vec.data[1] << ")";
return os;
}
#endif
#endif // INCLUDED_Vec2C_h_GUID_F9715DE4_2649_4182_0F4C_D62121235D5F
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