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#pragma once
#define PI 3.14159265358979323846f
#define MIN(a,b) (((a)<(b))?(a):(b))
#define MAX(a,b) (((a)>(b))?(a):(b))
#define CLAMP(x, upper, lower) (MIN(upper, MAX(x, lower)))
#define DTOR (PI / 180.0f)
#define SWAP(x, y, T) do { T SWAP = x; x = y; y = SWAP; } while (0)
namespace MathHelper {
inline float radiansToDegrees(float radians) {
return radians * 180.f / PI;
}
inline float degreesToRadians(float degrees) {
return degrees * PI / 180.f;
}
inline int nearestPowerOfTwo(int n) {
int v = n;
v--;
v |= v >> 1;
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
v++; // next power of 2
return v;
}
}
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