arduino stuffs
Diffstat (limited to 'mp3player/arduino/math.h')
| -rw-r--r-- | mp3player/arduino/math.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mp3player/arduino/math.h b/mp3player/arduino/math.h new file mode 100644 index 0000000..51e88d1 --- /dev/null +++ b/mp3player/arduino/math.h @@ -0,0 +1,18 @@ +#ifndef MATH_H +#define MATH_H +static constexpr inline float lerp(float from, float to, float weight) { return from + (to - from) * weight; } + +static inline int wrapi(int value, int min, int max) { + int range = max - min; + return range == 0 ? min : min + ((((value - min) % range) + range) % range); +} + +static inline int clamp(long value, long minv, long maxv) { + if (value < minv) + return minv; + else if (value > maxv) + return maxv; + return value; +} + +#endif |