fast repeat

repeat.h

#pragma once 


inline float repeat(float v, float min, float max)
{
  v -= min;
  v *= 1.0f / (max - min);
  v -= (float)(int)(v);
  v += 1.0f;
  v -= (float)(int)(v);
  v *= max - min;
  v += min;

  return v;
}

// Identiacal to repeat (v, 0, 1);
inline float repeat(float v)
{
  v -= (float)(int)(v);
  v += 1.0f;
  v -= (float)(int)(v);

  return v;
}