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vec.h
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53 lines (43 loc) · 1.11 KB
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#ifndef VEC_H
#define VEC_H
struct vec2 {
float x;
float y;
};
typedef struct vec3 {
float x;
float y;
float z;
} vec3;
typedef struct vec4 {
float x;
float y;
float z;
float w;
} vec4;
struct point2 {
int x;
int y;
};
extern struct vec3 vec3_forward;
extern struct vec3 vec3_right;
extern struct vec3 vec3_up;
extern struct vec3 vec3_zero;
extern struct vec3 vec3_one;
struct vec2 vec2_mul(struct vec2 v, float scalar);
int vec3_equal(struct vec3 u, struct vec3 v);
struct vec3 vec3_add(struct vec3 u, struct vec3 v);
struct vec3 vec3_mul(struct vec3 v, float scalar);
float dot3(struct vec3 u, struct vec3 v);
float vec3_angle(struct vec3 u, struct vec3 v);
struct vec3 vec3_normalized(struct vec3 u);
struct vec3 proj(struct vec3 u, struct vec3 v);
struct vec3 projectOnPlane(struct vec3 u, struct vec3 n);
struct vec3 vec3_minus(struct vec3 u, struct vec3 v);
struct vec3 vec3_uToV(struct vec3 u, struct vec3 v);
struct vec3 vec3_lerp(struct vec3 a, struct vec3 b, float t);
float vec3_magnitude(struct vec3 u);
float dot4(struct vec4 u, struct vec4 v);
int max(int a, int b);
int min(int a, int b);
#endif