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28 lines
505 B
C
28 lines
505 B
C
#ifndef MATHS_H
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#define MATHS_H
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#include <math.h>
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#define PI 3.141592653589793238462643383279502884L
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#define TAU 6.283185307179586476925286766559005768L
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typedef double vec_t;
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typedef struct { vec_t x, y; } vector;
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static inline vector VecAdd(vector l, vector r)
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{
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return (vector){l.x + r.x, l.y + r.y};
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}
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static inline vector VecScale(vector v, vec_t x)
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{
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return (vector){v.x * x, v.y * x};
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}
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static inline double pfmod(double x, double d)
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{
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return fmod(fmod(x, d) + d, (d));
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}
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#endif//MATHS_H
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