Shift Register Mini Project

int seqNum [10] = { 252, 80, 186, 218, 86, 206, 238, 88, 254, 222 };
int LedVals [9] = {0,1,2,4,8,16,32,64,128,};
int BackLedVals[9] = {128, 64, 32, 16, 8, 4, 2, 1, 0};
int newLED [8] = { 1, 3, 7, 15, 31, 63, 127, 255};
int backLedVals [8] = {255, 127, 63, 31, 15, 7, 3, 1};
bool lastButton = false;
bool currentButton =false;
int randNum;
const int buttPin = 8;
const int SER = 9;
const int LATCH = 10;
const int CLK = 11;
const int SER2 = 2;
const int LATCH2 = 3;
const int CLK2 = 4;
int count = 0;
void setup() {
  // put your setup code here, to run once:
  pinMode (SER, OUTPUT);
  pinMode (LATCH, OUTPUT);
  pinMode (CLK, OUTPUT);
  pinMode (SER2, OUTPUT);
  pinMode (LATCH2, OUTPUT);
  pinMode (CLK2, OUTPUT);
  digitalWrite (LATCH, LOW);
  shiftOut (SER, CLK, MSBFIRST, B11111111);
  digitalWrite (LATCH, HIGH);
  delay (200);
  digitalWrite (LATCH, LOW);
  shiftOut (SER, CLK, MSBFIRST, B00000000);
  digitalWrite (LATCH, HIGH);
  randomSeed(analogRead(0));
  digitalWrite (LATCH2, LOW);
  shiftOut (SER2, CLK2, MSBFIRST, B11111111);
  digitalWrite (LATCH2, HIGH);
  delay (200);
  digitalWrite (LATCH2, LOW);
  shiftOut (SER2, CLK2, MSBFIRST, B00000000);
  digitalWrite (LATCH2, HIGH);
  Serial.begin (9600);

}
  boolean debounce (boolean last)
  {
  boolean current = digitalRead(buttPin);
  if (last != current)
  {
    delay(5);
    current = digitalRead(buttPin);
  }
  return current;
    randomSeed(analogRead(0));
}
void effect (int seq [])
{
for (int i = 0; i < 10; i++)
   {
   digitalWrite (LATCH, LOW);
  shiftOut (SER, CLK, MSBFIRST, seq[i]);
  digitalWrite (LATCH, HIGH);
  delay (100);
   }
}
void loop()
{
  currentButton = debounce (lastButton);
  if (lastButton == LOW && currentButton == HIGH)
  {
   randNum = random (1,11);
   Serial.println (randNum);
   digitalWrite(LATCH2, LOW);
    shiftOut (SER2, CLK2, MSBFIRST, seqNum [randNum]);
    digitalWrite (LATCH2, HIGH);
//  }
delay(500);
  }
  switch(randNum)
  {
   case 1 :
   effect (BackLedVals);
  break;


 }
  lastButton = currentButton;
}