// NeoPixel Ring simple sketch (c) 2013 Shae Erisson
// Released under the GPLv3 license to match the rest of the
// Adafruit NeoPixel library

#include <Adafruit_NeoPixel.h>


// Which pin on the Arduino is connected to the NeoPixels?
#define PIN        11 // On Trinket or Gemma, suggest changing this to 1
#define N 9

// How many NeoPixels are attached to the Arduino?
#define NUMPIXELS 9*9*N // Popular NeoPixel ring size

// When setting up the NeoPixel library, we tell it how many pixels,
// and which pin to use to send signals. Note that for older NeoPixel
// strips you might need to change the third parameter -- see the
// strandtest example for more information on possible values.

uint16_t map_ledA[9][9]  = { {  0,  1,  2,  3,  4,  5,  6,  7,  8},
                             { 17, 16, 15, 14, 13, 12, 11, 10,  9},
                             { 18, 19, 20, 21, 22, 23, 24, 25, 26},
                             { 35, 34, 33, 32, 31, 30, 29, 28, 27},
                             { 36, 37, 38, 39, 40, 41, 42, 43, 44},
                             { 53, 52, 51, 50, 49, 48, 47, 46, 45},
                             { 54, 55, 56, 57, 58, 59, 60, 61, 62},
                             { 71, 70, 69, 68, 67, 66, 65, 64, 63},
                             { 72, 73, 74, 75, 76, 77, 78, 79, 80} };
                             
uint16_t map_ledB[9][9]  = { { 72, 73, 74, 75, 76, 77, 78, 79, 80},
                             { 71, 70, 69, 68, 67, 66, 65, 64, 63},
                             { 54, 55, 56, 57, 58, 59, 60, 61, 62},
                             { 53, 52, 51, 50, 49, 48, 47, 46, 45},
                             { 36, 37, 38, 39, 40, 41, 42, 43, 44},
                             { 35, 34, 33, 32, 31, 30, 29, 28, 27},
                             { 18, 19, 20, 21, 22, 23, 24, 25, 26},
                             { 17, 16, 15, 14, 13, 12, 11, 10,  9},
                             {  0,  1,  2,  3,  4,  5,  6,  7,  8}};

uint16_t map_led[N][9][9];

Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_RGB + NEO_KHZ800);

#define DELAYVAL 200 // Time (in milliseconds) to pause between pixels

void setup() {
  // END of Trinket-specific code.
  for(int i=0; i<9; i++) for(int j=0; j<9; j++) map_led[0][i][j]= map_ledA[i][j] ;
  for(int k=1; k<N; k=k+2)
    {
      for(int i=0; i<9; i++) for(int j=0; j<9; j++) map_led[k][i][j]= map_ledB[i][j]+81*k ;
      for(int i=0; i<9; i++) for(int j=0; j<9; j++) map_led[k][i][j]= map_ledA[i][j]+81*k ;
    }   
  pixels.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
  pixels.clear(); // Set all pixel colors to 'off'
}

void loop() {
  
  for(int i=0; i<9; i++) { // For each pixel...
    for(int k=0; k<N; k++)
       for(int j=0; j<9; j++)pixels.setPixelColor(map_led[k][i][j], pixels.Color(0, 150, 0));
    pixels.show();   // Send the updated pixel colors to the hardware.
    delay(DELAYVAL); // Pause before next pass through loop
    for(int k=0; k<N; k++)
       for(int j=0; j<9; j++)pixels.setPixelColor(map_led[k][i][j], pixels.Color(0, 0, 0));
    pixels.show();   // Send the updated pixel colors to the hardware.
  }

  for(int i=0; i<9; i++) { // For each pixel...
    for(int k=0; k<N; k++)
       for(int j=0; j<9; j++)pixels.setPixelColor(map_led[k][j][i], pixels.Color(0, 150, 0));
    pixels.show();   // Send the updated pixel colors to the hardware.
    delay(DELAYVAL); // Pause before next pass through loop
    for(int k=0; k<N; k++)
       for(int j=0; j<9; j++)pixels.setPixelColor(map_led[k][j][i], pixels.Color(0, 0, 0));
    pixels.show();   // Send the updated pixel colors to the hardware.
  }
}