Reaction Time Game

int tonefreq = 3000;      // adjusts your frequency for the tone() command
int untilpress;
int reset;
int Start;

unsigned long now;
unsigned long soon;
unsigned long react;
unsigned long react2; 

int playerone = 3;        // adjusts your pinouts
int playertwo = 4;
//int playerthree = 6;    // if you want to play with more players, then you have to uncomment the to slashes before playerthree, but then you have to correct more lines in the code
int resetPin = 5;
int outputPin = 10;

int upperWaitingTime = 3000;      // changes waiting time in milliseconds
int lowerWaitingTime = 7000;

void setup() {
  pinMode(outputPin,OUTPUT);
  pinMode(playerone,INPUT_PULLUP);
  pinMode(playertwo,INPUT_PULLUP);
  pinMode(resetPin,INPUT_PULLUP);
  Serial.begin(9600);
  untilpress = 0;
  
  Serial.print("Press button ");
  Serial.print(resetPin);
  Serial.println(" to start.");
  
  while(digitalRead(resetPin) == HIGH){
    
  }
  now = millis();
  soon = now + random(3000,7000);
  
}



void loop() {
  while(Start == 0){
    Serial.println("start");
    Start++;
    Serial.println("_________________________________________");
  }
  
  if(digitalRead(playerone) == LOW || digitalRead(playertwo) == LOW) {      // losing detection
  if(digitalRead(playerone) == LOW) {
  Serial.println("Left loses.");
  }

  if(digitalRead(playertwo) == LOW){
  Serial.println("Right loses.");
  
/*  if(digitalRead(playerthree) == LOW) {                             //if you want three players, then you can just delete the block comment syntax
  Serial.println("However you want to call it loses.");  
  }
*/               
  }
  
  while(digitalRead(playerone) == LOW || digitalRead(playertwo) == LOW/* || digitalRead(playerthree) == LOW*/) {     // if lost, then reset the timer, and here, too. Just delete the block comment syntax 
  now = millis();  
  soon = now + random(3000,7000);
  }                                             
  }


  
  if(soon == millis()){                       // tone
    tone(outputPin,tonefreq);
    react = millis();
    
  while(untilpress == 0){
    
  if(digitalRead(playerone) == LOW) {                   // loop until one player presses the button
    Serial.println("Left won.");
    untilpress++;
    Serial.print("Reaction time:");
    react2 = millis() - react;
    Serial.print(react2);
    Serial.println("ms");
  }

  
  if(digitalRead(playertwo) == LOW){
   Serial.println("Right has won.");
   untilpress++;
   Serial.print("Reaction time:");
   react2 = millis() - react;
   Serial.print(react2);
   Serial.println("ms");
  }

  
/*    if(digitalRead(playerthree) == LOW){            //if you want three players, then you can just delete the block comment syntax
   Serial.println("However you want to call it has won.");
   untilpress++;
   Serial.print("Reaction time:");
   react2 = millis() - react;
   Serial.print(react2);
   Serial.println("ms");
  }
*/
  }


                                                //reset after someone has won
  while(digitalRead(resetPin) == HIGH) {
    
  Start = 0;
  noTone(outputPin);
  now = millis();  
  soon = now + random(3000,7000);
  
  while(reset == 0){
    Serial.println("_________________________________");
  Serial.print("Press button ");
  Serial.print(resetPin);
  Serial.println(" to restart.");
    reset++;
    
  }
  }
  }

  untilpress = 0;
  reset = 0;
}