31 lines
608 B
C++
31 lines
608 B
C++
#pragma once
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#include <cmath>
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const double infinity = std::numeric_limits<double>::infinity();
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const double pi = 3.1415926535897932385;
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inline double degrees_to_radians(double degrees)
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{
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return degrees * pi / 180;
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}
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inline double random_double()
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{
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// returns a random real in [0,1)
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return rand() / (RAND_MAX + 1.0);
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}
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inline double random_double(double min, double max)
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{
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// returns a random real in [min,max)
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return min + (max-min)*random_double();
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}
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inline double clamp(double x, double min, double max)
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{
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if (x < min) return min;
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if (x > max) return max;
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return x;
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}
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