My first Arduino program

KnightRider

/*
  Knight Rider
  
  Strobe a set of LEDs like the Knight Rider car!
*/

// Number of LED in our array
enum { kLedCount = 8 };

// Array of pins controlling LEDs
int ledArray[] = { 6, 7, 8, 9, 10, 11, 12, 13 };

// Currently lit LED
int currentLed = 0;

// Increment to move to the next LED
int increment = 1;

// Delay for moving between LED. Set to cycle once a second.
int delayMilliseconds = 1.0/2.0 * 1000.0/8.0;

//
// setup
//
void setup() 
{                
    // Initialize the LED pins as outputs
    for(int i = 0; i < kLedCount; i++)
    {
        pinMode(ledArray[i], OUTPUT);
    }
}

//
// loop
// 
void loop() 
{
    // Set the current LED to HIGH, wait for the delay before going low and
    // moving onto the next LED in the sequence.
    digitalWrite(ledArray[currentLed], HIGH);
    delay(delayMilliseconds);
    digitalWrite(ledArray[currentLed], LOW);
    currentLed += increment;

    // If we're at the first or last LED then switch direction by inverting
    // the increment.
    if ((currentLed == (kLedCount - 1)) || (currentLed == 0))
    {
        increment = -increment;
    }
}