//Wheel of Fortune
//Version : 02
//MJ - 19-01-2020
 
int delayTime = 60; //50
int LEDS[10];
int buttonpin = 13;
bool startRolling = false;
bool firstBatch = true;
long randNumber;
 
void setup()
{
  Serial.begin(9600);
  pinMode(buttonpin, INPUT_PULLUP);
  randomSeed(analogRead(0));
  randNumber = random(0, 9);
  for (int i = 0; i <= 10; i++)
  {
    LEDS[i] = 2 + i;
  }
  shiftTab(LEDS, 10, randNumber);
  for (int j = 0; j <= 10; j++)
  {
    pinMode(LEDS[j], OUTPUT);
    digitalWrite(LEDS[j], LOW);
  }
}
 
void loop()
{
  startRolling = false;
  delay(delayTime / 2);
  if (digitalRead(buttonpin) == LOW)
  {
    if(!firstBatch)
    {
      resetDraw();
    }
    startRolling = true;
  }
  else
  {
    startRolling = false;
  }
  if (startRolling)
  {
    rollLoop();
  }
}
 
void shiftTab(int tab[], int tabSize, int pos)
{
  int teb[10];
  int counter = 0;
  int counterB = 0;
  for (int i = pos; i < tabSize; i++)
  {
    teb[counter] = tab[i];
    counter++;
  }
  if (counter != tabSize)
  {
    counterB = counter;
    for (int i = 0; i < tabSize - counter; i++)
    {
      teb[counterB] = tab[i];
      counterB++;
    }
  }
  for (int i = 0; i < tabSize; i++)
  {
    tab[i] = teb[i];
  }
}
 
void resetDraw()
{
  shutALlDels();
  randNumber = random(0, 9);
  for (int i = 0; i <= 10; i++)
  {
    LEDS[i] = 2 + i;
  }
  shiftTab(LEDS, 10, randNumber);
  for (int j = 0; j <= 10; j++)
  {
    pinMode(LEDS[j], OUTPUT);
    digitalWrite(LEDS[j], LOW);
  }
  delayTime = 50;
}
 
void rollLoop()
{
  int lastDel = 0;
  while (delayTime <= 650) //650
  {
    int x;
    delay(delayTime / 2);
    digitalWrite(LEDS[9], LOW);
    digitalWrite(LEDS[0], HIGH);
    for (x = 1; x <= 9; x++)
    {
      delay(delayTime);
      digitalWrite(LEDS[x - 1], LOW);
      digitalWrite(LEDS[x], HIGH);
      if(x == 5)
      {
        delayTime = delayTime + 120; //200
      }
    }
    if (delayTime == 650)
    {
      delay(delayTime / 2);
      digitalWrite(LEDS[x - 1], LOW);
      delay(delayTime / 2);
      digitalWrite(LEDS[x - 1], HIGH);
      delay(delayTime / 2);
      digitalWrite(LEDS[x - 1], LOW);
      delay(delayTime / 2);
      digitalWrite(LEDS[x - 1], HIGH);
      firstBatch = false;
      break;
    }
  }
}
 
void shutALlDels()
{
  for (int i = 0; i <= 10; i++)
  {
    digitalWrite(LEDS[i], LOW);
  }
}