paysages3d/lib_paysages/euclid.h

#ifndef _PAYSAGES_EUCLID_H_
#define _PAYSAGES_EUCLID_H_

#include "pack.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct
{
    double x;
    double y;
    double z;
} Vector3;

typedef struct
{
    double a;
    double b;
    double c;
    double d;
    double e;
    double f;
    double g;
    double h;
    double i;
    double j;
    double k;
    double l;
    double m;
    double n;
    double o;
    double p;
} Matrix4;

extern Vector3 VECTOR_ZERO;
extern Vector3 VECTOR_DOWN;
extern Vector3 VECTOR_UP;
extern Vector3 VECTOR_NORTH;
extern Vector3 VECTOR_SOUTH;
extern Vector3 VECTOR_EAST;
extern Vector3 VECTOR_WEST;

void v3Save(PackStream* stream, Vector3* v);
void v3Load(PackStream* stream, Vector3* v);
Vector3 v3Translate(Vector3 v1, double x, double y, double z);
Vector3 v3Add(Vector3 v1, Vector3 v2);
Vector3 v3Sub(Vector3 v1, Vector3 v2);
Vector3 v3Neg(Vector3 v);
Vector3 v3Scale(Vector3 v, double scale);
double v3Norm(Vector3 v);
Vector3 v3Normalize(Vector3 v);
double v3Dot(Vector3 v1, Vector3 v2);
Vector3 v3Cross(Vector3 v1, Vector3 v2);

void m4Save(PackStream* stream, Matrix4* m);
void m4Load(PackStream* stream, Matrix4* m);
Matrix4 m4NewIdentity();
Matrix4 m4Mult(Matrix4 m1, Matrix4 m2);
Vector3 m4MultPoint(Matrix4 m, Vector3 v);
Vector3 m4Transform(Matrix4 m, Vector3 v);
Matrix4 m4Transpose(Matrix4 m);
Matrix4 m4NewScale(double x, double y, double z);
Matrix4 m4NewTranslate(double x, double y, double z);
Matrix4 m4NewRotateX(double angle);
Matrix4 m4NewRotateY(double angle);
Matrix4 m4NewRotateZ(double angle);
Matrix4 m4NewRotateAxis(double angle, Vector3 axis);
Matrix4 m4NewRotateEuler(double heading, double attitude, double bank);
Matrix4 m4NewRotateTripleAxis(Vector3 x, Vector3 y, Vector3 z);
Matrix4 m4NewLookAt(Vector3 eye, Vector3 at, Vector3 up);
Matrix4 m4NewPerspective(double fov_y, double aspect, double near, double far);
double m4Determinant(Matrix4 m);
Matrix4 m4Inverse(Matrix4 m);

#ifdef __cplusplus
}
#endif

#endif