// PIN ASSIGNMENTS //
#define BUTTON1 2
#define BUTTON2 4
#define LED1 6
#define LED2 9
#define PIEZO 11

void setup() {
  pinMode(BUTTON1, INPUT);
  pinMode(BUTTON2, INPUT);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(PIEZO, OUTPUT);

  // BLINK LED1 TWICE TO VISUALLY CONFIRM STARTUP //
  for(int a = 0; a < 2; a++) {
    digitalWrite(LED1, HIGH);
    delay(500);
    digitalWrite(LED1, LOW);
    delay(500);
  }
  delay(500);
}

void loop() {

  // buttonState IS HIGH (1) WHEN BUTTON IS PRESSED.
  // AND IT IS LOW (0) WHEN BUTTON IS NOT PRESSED.
  int buttonState1 = digitalRead(BUTTON1);
  int buttonState2 = digitalRead(BUTTON2);

  if (buttonState1 == HIGH) {
    for (int b = 0; b < 255; b++) {
      analogWrite(LED1, b);
      delay(5);
      //CLEANING UP THE TONE
      if ((b*10)/tan(b) < 100 || (b*10)/tan(b) > 5000) {
        //DO NOTHING!
      }
      else {
      tone(PIEZO, (b*10)/tan(b));
      }
    }
    for(int b = 255; b > 0; b--) {
      analogWrite(LED1, b);
      delay(5);
      //CLEANING UP THE TONE, AGAIN!
      if ((b*10)/tan(b) < 100 || (b*10)/tan(b) > 5000) {
        //DO NOTHING, AGAIN!
      }
      else {
      tone(PIEZO, (b*10)/tan(b));
      }
    }
    noTone(PIEZO);
    digitalWrite(LED1, LOW);
    winGame();
  }
  else if (buttonState2 == HIGH) {
    tone(PIEZO, 50);
    for(int c = 0; c < 2; c++) {
      digitalWrite(LED2, HIGH);
      delay(500);
      digitalWrite(LED2, LOW);
      delay(500);
    }
    noTone(PIEZO);
    loseGame();
  }

}

void winGame() {
  for(int z = 0; z < 3000; z++) {
    tone(PIEZO,z);
    delay(1);
  }
  noTone(PIEZO);
}

void loseGame() {
  for(int z = 3000; z > 0; z--) {
    tone(PIEZO,z);
    delay(1);
  }
  noTone(PIEZO);
}