#include <Adafruit_NeoPixel.h>

#define N_LEDS 29
#define PIN     3

Adafruit_NeoPixel strip = Adafruit_NeoPixel(N_LEDS, PIN, NEO_GRB + NEO_KHZ800);
int recColor1 = 3;
int recColor2 = 2;
int recColor3 = 1;
int blinkDelay = 0;
int mCounter = 0;
const int REPS = 1000; // Number of times to repeat the animation loop (1-255)
int rep = REPS;

void setup() {
  strip.begin();
  randomSeed(analogRead(0));
}

int pos = 0, dir = 1; // Position, direction of "eye"
int pos1 = 0, dir1 = 1; // Position, direction of "eye"
int pos2 = 0, dir2 = -1; // Position, direction of "eye"

void loop() {
      mCounter++;
      if (mCounter<100) {
        Scanner1();
      } else if (mCounter > 99 && mCounter < 200) {      
        Scanner1();
      } else if (mCounter > 199 && mCounter < 400) {      
        Scanner1();
      } else if (mCounter > 399 && mCounter < 600) {            
        Scanner1();
      } else if (mCounter > 599 && mCounter < 990) {
        Scanner1();
        //mRandom();
      } else {
        mRedEyes();
      }

      if (mCounter>1000) {
        mCounter = 0;
        strip.clear();
      }    

}

void mRedEyes() {
    eyeDisplay();
    strip.show();  
    delay(1000);  
    strip.clear();    
    strip.show();  
    blinkDelay = random(220) + 30;
    delay(blinkDelay);  

}

void eyeDisplay() {
    strip.setPixelColor(7, 0x100000); // Dark blue
    strip.setPixelColor(8, 0x800000); // Medium blue
    strip.setPixelColor(9    , 0xFF3000); // Center pixel is brightest
    strip.setPixelColor(10, 0x800000); // Medium blue
    strip.setPixelColor(11, 0x100000); // Dark blue

    strip.setPixelColor(16, 0x100000); // Dark blue
    strip.setPixelColor(17, 0x800000); // Medium blue
    strip.setPixelColor(18, 0xFF3000); // Center pixel is brightest
    strip.setPixelColor(19, 0x800000); // Medium blue
    strip.setPixelColor(20, 0x100000); // Dark blue
}


void mRandom() {
      for(int x=0; x<N_LEDS;x++) {
        recColor1 = random(255);
        recColor2 = random(255);
        recColor3 = random(255);
        strip.setPixelColor(x, recColor1,recColor2,recColor3);
      }
      strip.show();
      delay(20);  
}

void Scanner1() {
    int j;
    strip.setPixelColor(pos - 2, 0x000010); // Dark blue
    strip.setPixelColor(pos - 1, 0x400040); // Medium blue
    strip.setPixelColor(pos    , 0xFF3000); // Center pixel is brightest
    strip.setPixelColor(pos + 1, 0x400040); // Medium blue
    strip.setPixelColor(pos + 2, 0x000010); // Dark blue

    strip.show();
    delay(30);

    // Rather than being sneaky and erasing just the tail pixel,
    // it's easier to erase it all and draw a new one next time.
    for(j=-2; j<= 2; j++) strip.setPixelColor(pos+j, 0);

    // Bounce off ends of strip
    pos += dir;
    if(pos < 0) {
      pos = 1;
      dir = -dir;
    } else if(pos >= strip.numPixels()) {
      pos = strip.numPixels() - 2;
      dir = -dir;
    }
}