ccore/include/core/Vector.h

#ifndef CORE_VECTOR_H
#define CORE_VECTOR_H

#include "core/Types.h"

#define CORE_VECTOR_OP2(name) name *r, const name *a
#define CORE_VECTOR_OP3(name) CORE_VECTOR_OP2(name), const name* b

#define CORE_DEFINE_VECTOR(N, name, sname, type)                               \
    typedef struct {                                                           \
        type data[N];                                                          \
    } name;                                                                    \
    name* coreAddSet##sname(CORE_VECTOR_OP2(name));                            \
    name* coreAdd##sname(CORE_VECTOR_OP3(name));                               \
    name* coreSubSet##sname(CORE_VECTOR_OP2(name));                            \
    name* coreSub##sname(CORE_VECTOR_OP3(name));                               \
    name* coreMulSet##sname(CORE_VECTOR_OP2(name));                            \
    name* coreMul##sname(CORE_VECTOR_OP3(name));                               \
    name* coreDivSet##sname(CORE_VECTOR_OP2(name));                            \
    name* coreDiv##sname(CORE_VECTOR_OP3(name));                               \
    name* coreMulSet##sname##F(name* r, type f);                               \
    name* coreMul##sname##F(name* r, const name* a, type f);                   \
    name* coreDivSet##sname##F(name* r, type f);                               \
    name* coreDiv##sname##F(name* r, const name* a, type f);                   \
    name* coreInvertSet##sname(name* r);                                       \
    name* coreInvert##sname(name* r, const name* a);                           \
    size_t coreToString##sname(const name* a, char* buffer, size_t n);

#define CORE_DEFINE_FVECTOR(N, name)                                           \
    float coreDotV##N(const name* a, const name* b);                           \
    float coreSquareLengthV##N(const name* a);                                 \
    float coreLengthV##N(const name* a);                                       \
    name* coreNormalizeV##N(name* r);

CORE_DEFINE_VECTOR(2, CoreVector2, V2, float)
CORE_DEFINE_VECTOR(3, CoreVector3, V3, float)
CORE_DEFINE_VECTOR(4, CoreVector4, V4, float)
CORE_DEFINE_FVECTOR(2, CoreVector2)
CORE_DEFINE_FVECTOR(3, CoreVector3)
CORE_DEFINE_FVECTOR(4, CoreVector4)
CORE_DEFINE_VECTOR(2, CoreIntVector2, IV2, int)
CORE_DEFINE_VECTOR(3, CoreIntVector3, IV3, int)
CORE_DEFINE_VECTOR(4, CoreIntVector4, IV4, int)

CoreVector3* coreAngles(CoreVector3* r, float lengthAngle, float widthAngle);
CoreVector3* coreCross(CORE_VECTOR_OP3(CoreVector3));

#define CORE_DEFINE_VECTOR_CONVERSION(a, nameA, b, nameB)                      \
    a* coreConvert##nameB(a* r, const b* c);                                   \
    b* coreConvert##nameA(b* r, const a* c)

CORE_DEFINE_VECTOR_CONVERSION(CoreVector2, V2, CoreIntVector2, IV2);
CORE_DEFINE_VECTOR_CONVERSION(CoreVector3, V3, CoreIntVector3, IV3);
CORE_DEFINE_VECTOR_CONVERSION(CoreVector4, V4, CoreIntVector4, IV4);

#define CORE_VECTOR2 ((CoreVector2){0})
#define CORE_VECTOR3 ((CoreVector3){0})
#define CORE_VECTOR4 ((CoreVector4){0})
#define CORE_INT_VECTOR2 ((CoreIntVector2){0})
#define CORE_INT_VECTOR3 ((CoreIntVector3){0})
#define CORE_INT_VECTOR4 ((CoreIntVector4){0})

#endif