volatile bool flashLight_flg = 0;  
volatile bool rattling_flg = 0;

void flashingIsr()
{
  flashLight_flg = !flashLight_flg;
}

void rattlingISR()
{
  rattling_flg = !rattling_flg;
}

void rattling ()
{
 noTone(7);
 for(int k = 0; k<10; k++)
   {
      tone(7,100);
      delay(50);
      tone(7,700);
      delay(50);
      //if (flashLight_flg) break;
      if (!rattling_flg) break;
   }  
}

void flashing()
{
for(int j = 0; j<7; j++)
  {
  digitalWrite(5, HIGH);
  digitalWrite(6, LOW);
  if(rattling_flg) break;
  if(!flashLight_flg) break;
  for(int i=300; i<600; i +=20)
  {
    tone(7,i);
    delay(10);
  }
  //
  digitalWrite(5, LOW);
  digitalWrite(6, HIGH);
  for(int i=600; i>300; i-=20)
  {
    tone(7,i);
    delay(10);
    if(rattling_flg) break;
    if(!flashLight_flg) break;
  }
  }
}


void setup() 
{
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(2, INPUT_PULLUP);
  pinMode(3, INPUT_PULLUP);
  attachInterrupt(0, flashingIsr, FALLING);
  attachInterrupt(1, rattlingISR, FALLING);
}

void loop() 
{
 while(flashLight_flg)
  {
     flashing();
     noTone(7);
     if(rattling_flg)  break;
     if(!flashLight_flg)
     {
      for(int k  = 0; k < 1; k++)
            {
              if(rattling_flg) break;
              if(flashLight_flg) break;
              tone(7,800); 
              delay(300); 
            }
        for(int i=800; i>200; i-=10)
        { 
          const int j = map(i,800,200,250,0);
          analogWrite(5,j);
          analogWrite(6,j);
          tone(7,i);
          delay(50);
          if(rattling_flg) break;
          if(flashLight_flg) break;
        }
        noTone(7);
        digitalWrite(5, LOW);
        digitalWrite(6, LOW);
     }
  }

while (rattling_flg)
  {
    rattling ();
    noTone(7);
    
  }
}