kolibrios/programs/games/marblematch3/game/rs/rsmx.h

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#ifndef rs_mx_t_H_INCLUDED
#define rs_mx_t_H_INCLUDED
// Some matrix and vector stuff
// by Roman Shuvalov
#define RS_SQR(x) ((x)*(x))
// actual period is 1024 ms (1.024 sec)
#define RS_TIME_KOEF_SEC (M_PI * 2.0 * 64.0 / 65536.0)
typedef struct {
union {
struct {
float x;
float y;
float z;
};
float v[3];
};
} rs_vec3_t;
typedef struct {
union {
struct {
float x;
float y;
float z;
float w;
};
float v[4];
};
} rs_vec4_t;
rs_vec3_t rs_vec3_sub(rs_vec3_t v1, rs_vec3_t v2);
rs_vec3_t rs_vec3_add(rs_vec3_t v1, rs_vec3_t v2);
rs_vec3_t rs_vec3_mult(rs_vec3_t v, float s);
rs_vec4_t rs_vec4_sub(rs_vec4_t v1, rs_vec4_t v2);
void rs_vec4_add(rs_vec4_t dest, rs_vec4_t v1, rs_vec4_t v2);
rs_vec4_t rs_vec4(float x, float y, float z, float w);
rs_vec3_t rs_vec3(float x, float y, float z);
float rs_vec4_length_sqr(rs_vec4_t src);
float rs_vec3_length_sqr(rs_vec3_t src);
float rs_vec4_length(rs_vec4_t v);
float rs_vec3_length(rs_vec3_t v);
float rs_vec4_dot(rs_vec4_t v1, rs_vec4_t v2);
float rs_vec3_dot(rs_vec3_t v1, rs_vec3_t v2);
rs_vec3_t rs_vec3_cross(rs_vec3_t u, rs_vec3_t v);
rs_vec3_t rs_vec3_normalize(rs_vec3_t v);
float rs_vec4_angle(rs_vec4_t u, rs_vec4_t v);
float rs_vec3_cos_angle(rs_vec3_t u, rs_vec3_t v);
float rs_vec3_distance_sqr(rs_vec3_t u, rs_vec3_t v);
float rs_clamp(float x, float min1, float max1);
int rs_clamp_i(int x, int min1, int max1);
float rs_max(float x, float y);
float rs_min(float x, float y);
float rs_sign(float f);
float rs_pow(float f, float p);
float rs_fract(float f);
float rs_exp_interpolate(float v_from, float v_to, float dt);
float rs_linear_interpolate(float v_from, float v_to, float t);
float rs_clamp_angle(float f);
#endif // rs_mx_t_H_INCLUDED