encoder_dir.h

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#ifndef ENCODER_DIR_H
#define ENCODER_DIR_H
 
namespace modulove {
namespace arythmatik {
 
enum Direction {
    DIRECTION_UNCHANGED,
    DIRECTION_INCREMENT,
    DIRECTION_DECREMENT,
};
 
inline Direction rotate_(int dir) {
    switch (dir) {
        case 1:
            return DIRECTION_INCREMENT;
        case -1:
            return DIRECTION_DECREMENT;
        default:
            return DIRECTION_UNCHANGED;
    }
}
 
inline Direction rotate_reversed_(int dir) {
    switch (dir) {
        case 1:
            return DIRECTION_DECREMENT;
        case -1:
            return DIRECTION_INCREMENT;
        default:
            return DIRECTION_UNCHANGED;
    }
}
 
inline Direction Rotate(int dir, bool reversed) {
    int _dir = dir > 0 ? 1 : -1;
    return (reversed) ? rotate_reversed_(_dir) : rotate_(_dir);
}
 
}  // namespace arythmatik
}  // namespace modulove
 
#endif