button code, this isn't quite right

void button(){
  buttonState0 = digitalRead(button0);
  if (raceStarted == false){
    if(buttonState0 == HIGH) {
      ticks0 = 0;
      ticks1 = 0;
      finish0 = 256*0;
      finish1 = 256*0;
      raceStarting = true;
      raceStarted = false;
      lastCountDown = 4;
      lastCountDownMillis = millis();
      win = 16;
     }
  }
  if (raceStarted == true){
   if(buttonState0 == HIGH) {
        raceStarted = false;
        digitalWrite(goLed0,LOW);
        digitalWrite(goLed1,LOW);
    }  
  }
}