struct {
  uint16_t c;
  uint16_t t;
  uint16_t R;
  bool reversed;
} scenario[] = {
  {200,  900, 2000, false},
  {200, 1500, 2000, false},
  {100,  200, 2000, false},
  {200,  800, 2000, true},
  {200, 1500, 2000, true},
};


void setup() {
  Serial.begin(115200);

  for (auto & s : scenario) {
    uint16_t cw, ccw;
    if (s.c > s.t) {
      cw = (s.c - s.t);
      ccw = (s.R - s.c) + s.t;
    } else {
      cw = s.c + (s.R - s.t);
      ccw = s.t - s.c;
    }
    Serial.print("C = "); Serial.println(s.c);
    Serial.print("T = "); Serial.println(s.t);
    Serial.print("R = "); Serial.println(s.R);

    Serial.print("CW = "); Serial.println(cw);
    Serial.print("CCW = "); Serial.println(ccw);
    Serial.println("-----------");
  }
}

void loop() {}