#include <Adafruit_NeoPixel.h>

#define NEO_PIN1  16  // top row
#define NEO_PIN2  17  // bottom row
#define LED_COUNT 10  // per row
#define WAIT_TIME 200 // millis

Adafruit_NeoPixel strip_top(LED_COUNT, NEO_PIN1, NEO_GRB + NEO_KHZ800);   // top row
Adafruit_NeoPixel strip_bot(LED_COUNT, NEO_PIN2, NEO_GRB + NEO_KHZ800);   // bottom row
// Argument 1 = Number of pixels in NeoPixel strip
// Argument 2 = Arduino pin number (most are valid)
// Argument 3 = Pixel type flags, add together as needed:
//   NEO_KHZ800  800 KHz bitstream (most NeoPixel products w/WS2812 LEDs)
//   NEO_KHZ400  400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers)
//   NEO_GRB     Pixels are wi_red for GRB bitstream (most NeoPixel products)
//   NEO_RGB     Pixels are wi_red for RGB bitstream (v1 FLORA pixels, not v2)
//   NEO_RGBW    Pixels are wi_red for RGBW bitstream (NeoPixel RGBW products)

#define _yel 0xffff00
#define _red 0xff0000
#define _grn 0x00ff00
#define _blu 0x0000ff
#define _off 0x000000
#define _stp 0xffffff  // stop

// rolling patterns
static uint32_t patt_bot_L[][LED_COUNT] = {
  { _blu,_off,_yel,_off,_off,_off,_off,_off,_red,_off },
  { _off,_blu,_yel,_yel,_off,_off,_off,_off,_off,_red },
  { _blu,_off,_yel,_yel,_yel,_off,_off,_off,_red,_off },
  { _off,_blu,_yel,_yel,_yel,_yel,_off,_off,_off,_red },
  { _blu,_off,_yel,_yel,_yel,_yel,_yel,_off,_red,_off },
  { _off,_blu,_yel,_yel,_yel,_yel,_yel,_yel,_off,_red },
  { _blu,_off,_yel,_yel,_yel,_yel,_yel,_yel,_red,_off },
  { _off,_blu,_yel,_yel,_yel,_yel,_yel,_yel,_off,_red },
  { _stp,_off,_off,_off,_off,_off,_off,_off,_off,_off }    // keep this last
};
static uint32_t patt_bot_R[][LED_COUNT] = {
  { _blu,_off,_off,_off,_off,_off,_off,_yel,_red,_off },
  { _off,_blu,_off,_off,_off,_off,_yel,_yel,_off,_red },
  { _blu,_off,_off,_off,_off,_yel,_yel,_yel,_red,_off },
  { _off,_blu,_off,_off,_yel,_yel,_yel,_yel,_off,_red },
  { _blu,_off,_off,_yel,_yel,_yel,_yel,_yel,_red,_off },
  { _off,_blu,_yel,_yel,_yel,_yel,_yel,_yel,_off,_red },
  { _blu,_off,_yel,_yel,_yel,_yel,_yel,_yel,_red,_off },
  { _off,_blu,_yel,_yel,_yel,_yel,_yel,_yel,_off,_red },
  { _stp,_off,_off,_off,_off,_off,_off,_off,_off,_off }    // keep this last
};
static uint32_t patt_top_L[][LED_COUNT] = {
  { _yel,_yel,_yel,_off,_off,_off,_off,_off,_off,_off },
  { _off,_yel,_yel,_yel,_off,_off,_off,_off,_off,_off },
  { _off,_off,_yel,_yel,_yel,_off,_off,_off,_off,_off },
  { _off,_off,_off,_yel,_yel,_yel,_off,_off,_off,_off },
  { _off,_off,_off,_off,_yel,_yel,_yel,_off,_off,_off },
  { _off,_off,_off,_off,_off,_yel,_yel,_yel,_off,_off },
  { _off,_off,_off,_off,_off,_off,_yel,_yel,_yel,_off },
  { _off,_off,_off,_off,_off,_off,_off,_yel,_yel,_yel },
  { _stp,_off,_off,_off,_off,_off,_off,_off,_off,_off }    // keep this last
};
static uint32_t patt_top_R[][LED_COUNT] = {
  { _off,_off,_off,_off,_off,_off,_off,_yel,_yel,_yel },
  { _off,_off,_off,_off,_off,_off,_yel,_yel,_yel,_off },
  { _off,_off,_off,_off,_off,_yel,_yel,_yel,_off,_off },
  { _off,_off,_off,_off,_yel,_yel,_yel,_off,_off,_off },
  { _off,_off,_off,_yel,_yel,_yel,_off,_off,_off,_off },
  { _off,_off,_yel,_yel,_yel,_off,_off,_off,_off,_off },
  { _off,_yel,_yel,_yel,_off,_off,_off,_off,_off,_off },
  { _yel,_yel,_yel,_off,_off,_off,_off,_off,_off,_off },
  { _stp,_off,_off,_off,_off,_off,_off,_off,_off,_off }    // keep this last
};

/////////////////////////////////////////////////////////////////////////////
void display_patterns(uint32_t top[][LED_COUNT], uint32_t bot[][LED_COUNT], unsigned long wait) {
  int row, col;
  for(row = 0; row < 100; row++) {
    if (top[row][0] == _stp || bot[row][0] == _stp)
      break;
    for(col = 0; col < LED_COUNT; col++) {
      strip_top.setPixelColor(col, top[row][col]);
      strip_bot.setPixelColor(col, bot[row][col]);
    }
    strip_top.show();
    strip_bot.show();
    delay(wait);
  }
}
/////////////////////////////////////////////////////////////////////////////
void setup() {
  // Serial.begin(115200);

  strip_top.begin();           // INITIALIZE NeoPixel strip object (REQUI_red)
  strip_top.show();            // Turn _off all pixels ASAP
  strip_top.setBrightness(50); // Set BRIGHTNESS to about 1/5 (max = 255)
  strip_bot.begin();
  strip_bot.show();
  strip_bot.setBrightness(50);
}

/////////////////////////////////////////////////////////////////////////////
void loop() {
  int i;

  for(i = 0; i < 5; i++)
    display_patterns(patt_top_L, patt_bot_L, WAIT_TIME);
  for(i = 0; i < 5; i++)
    display_patterns(patt_top_R, patt_bot_R, WAIT_TIME);

  delay(10); // this speeds up the simulation (???)
}