void setup() {
  // put your setup code here, to run once:
  pinMode(PB2, INPUT_PULLUP);
  pinMode(0, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(1, OUTPUT);
  for (int i=0;i<6;i++){
    digitalWrite(i, HIGH);
  }

    digitalWrite(4, LOW);

  
}
void tonePlay(int opoz, int perods,int cisza){
        for(int j=0; j<perods;j++)
      {
        digitalWrite(1, LOW);
        delayMicroseconds(opoz);
        digitalWrite(1, HIGH);
        delayMicroseconds(opoz);
        opoz=opoz-4;
         
      }
      delay(cisza);
      

}

void tonePlayWalk(int opoz, int perods,int cisza,int duration){
      for(int k=0;k<duration;k++){

       
        for(int j=0; j<perods/2;j++)
      {
        digitalWrite(1, LOW);
        delayMicroseconds(opoz);
        digitalWrite(1, HIGH);
        delayMicroseconds(opoz);
        opoz=opoz-4;
         
      }
              for(int j=0; j<perods/2;j++)
      {
        digitalWrite(1, LOW);
        delayMicroseconds(opoz);
        digitalWrite(1, HIGH);
        delayMicroseconds(opoz);
        opoz=opoz+4;
         
      }
      delay(cisza);
      }

}





void loop() {
  // put your main code here, to run repeatedly:
 int mojFreq=2000;
 if(digitalRead(PB2)==LOW)
 {
  
    delay(15);
     tonePlay(mojFreq,30,10);
     delay(100);
     tonePlay(mojFreq,30,10);
     delay(1500);
    digitalWrite(0, HIGH);
//    digitalWrite(3, HIGH);
    digitalWrite(4, LOW);
    tonePlayWalk(mojFreq*1.9,20,1000,10);
  //  delay(1500);
//    digitalWrite(3, LOW);
for (int i=0; i<4 ; i++){
      digitalWrite(0, LOW);
      for(int j=0; j<1; j++){
              tonePlay(mojFreq*1,100,100);
     
      }
       digitalWrite(0, HIGH);
      for(int j=0; j<1; j++){
      tonePlay(mojFreq,100,100);

      }


}
    digitalWrite(0, HIGH);
//    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
   delay(650);
}
}