int S0=A0;
int S1=A1;
int S2=A2;
int S3=A3;
int S4=A4;
int del=60;
int del1=1500;
long prevtime=0;

const int ledCount = 10;
int ledPins[] = {
  2, 3, 4, 5, 6, 7, 8, 9, 10, 11
};

void setup() {
  // put your setup code here, to run once:

pinMode(S0, INPUT);
pinMode(S1, INPUT);
pinMode(S2, INPUT);
pinMode(S3, INPUT);
pinMode(S4, INPUT);

for (int thisLed = 0; thisLed < ledCount; thisLed++) {
    pinMode(ledPins[thisLed], OUTPUT);
  }

}

void loop() {  
  
int state0=digitalRead(S0);
int state1=digitalRead(S1);
int state2=digitalRead(S2);
int state3=digitalRead(S3);



   int sensorReading = analogRead(S4);
   int ledLevel = map(sensorReading, 0, 1023, 0, 7);
int ledLevelmem=0;  //unused, in a try to setup the quit statement

  // loop over the LED array:
  for (int thisLed = 0; thisLed <= 7; thisLed++) {
    // if the array element's index is less than ledLevel,
    // turn the pin for this element on:
    
    
    if (thisLed < ledLevel) {
      digitalWrite(ledPins[thisLed], HIGH);
    }
   else  {
    digitalWrite(ledPins[thisLed], LOW);

      }
  }
  
if (state0==1)  {
  
  for(int ht0=0; ht0<=9; ht0++)  {

    digitalWrite(ledPins[ht0],HIGH);
delay(del);
  if (state1==1)      //why this statement does not work?
  break;              //why this statement does not work?
   if (ht0==9){
     delay(del1); 
     for (ht0=9; ht0>=0; ht0--)  {
    digitalWrite(ledPins[ht0],LOW);
      
      
       }
       break;
   }
}
}

if (state1==1)  {
  
  for(int ht0=0; ht0<=6; ht0++)  {

    digitalWrite(ledPins[ht0],HIGH);
delay(del);
  
   if (ht0==6){
     delay(del1); 
     for (ht0=9; ht0>=0; ht0--)  {
    digitalWrite(ledPins[ht0],LOW);
      }
      
    break;   }
   }
}

if (state2==1)  {
  
  for(int ht0=0; ht0<=5; ht0++)  {

    digitalWrite(ledPins[ht0],HIGH);
delay(del);
  
   if (ht0==5){
     delay(del1); 
     for (ht0=9; ht0>=0; ht0--)  {
    digitalWrite(ledPins[ht0],LOW);
      }
      
    break;   }
   }
}

if (state3==1)  {
  
  for(int ht0=0; ht0<=5; ht0++)  {

    digitalWrite(ledPins[ht0],HIGH);
delay(del);
  
   if (ht0==5){
     delay(del1); 
     for (ht0=9; ht0>=0; ht0--)  {
   digitalWrite(ledPins[ht0],LOW);
      }
      
    break;   }
   }
}

}