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/*
 Mark Kriegsman's DemoReel 100 modified for APA104 RGB+W LEDs.
 This is the first humble attempt to use RGBW LEDs with FastLED.
 
 APA104 are 'improved' WS2812B, so this LED_TYPE can be chosen as well.
 The strip is set up with alternating Color and White LEDs.
 http://www.szledcolor.com.img.800cdn.com/upload/2015423162708_1.jpg
 To make things easier the White LEDs have also an 3 x 8 bit internal
 register and behave like normal color APA104, just with the difference
 that there are 768 brightness steps for the white LED.
 
 In order to address following them arrays were defined 
 CRGB leds_Color[NUM_LEDS];
 CRGB leds_White[NUM_LEDS];
 To fill them with the right odd and even numbers Daniel Garcia 
 contibuted this formula to allow the special FastLED functions.
 for(int i = 0; i < (NUM_LEDS/2); i++) { leds[i*2] = leds_Color[i]; leds[(i*2)+1] = leds_White[i]; } 
 The function is executed in beginning of the loop.

 For optional plain access the arrays can be defined as
 uint8_t Array_Color[] = {0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142};
 uint8_t Array_White[] = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143};

 For longer strips you find at the bottom of the sketch even and odd numbers from 0 .. 1000
 
 Gyro Gearloose
 June 2016
*/

#include "FastLED.h"
FASTLED_USING_NAMESPACE

#if defined(FASTLED_VERSION) && (FASTLED_VERSION < 3001000)
#warning "Requires FastLED 3.1 or later; check github for latest code."
#endif

#define DATA_PIN    12
//#define CLK_PIN   4
//#define LED_TYPE    APA104
#define LED_TYPE    WS2812B
#define COLOR_ORDER GRB
#define NUM_LEDS    144
CRGB leds[NUM_LEDS];
CRGB leds_Color[NUM_LEDS];
CRGB leds_White[NUM_LEDS];

uint8_t Array_Color[] = {0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142};
uint8_t Array_White[] = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131, 133, 135, 137, 139, 141, 143};

#define BRIGHTNESS          96
#define FRAMES_PER_SECOND  120

void setup() {
  delay(3000); // 3 second delay for recovery
  
  // tell FastLED about the LED strip configuration
  FastLED.addLeds<LED_TYPE,DATA_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  //FastLED.addLeds<LED_TYPE,DATA_PIN,CLK_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);

  // set master brightness control
  FastLED.setBrightness(BRIGHTNESS);
//for(int i = 0; i < (NUM_LEDS/2); i++) { leds[i*2] = leds_Color[i]; leds[(i*2)+1] = leds_White[i]; } 
Serial.begin(9600);
}

// List of patterns to cycle through.  Each is defined as a separate function below.
typedef void (*SimplePatternList[])();
SimplePatternList gPatterns = { rainbow, rainbowWithGlitter, confetti, sinelon, /*juggle,*/ bpm };

uint8_t gCurrentPatternNumber = 0; // Index number of which pattern is current
uint8_t gHue = 0; // rotating "base color" used by many of the patterns
  
void loop()
{
for(int i = 0; i < (NUM_LEDS/2); i++) { leds[i*2] = leds_Color[i]; leds[(i*2)+1] = leds_White[i]; } 
  // Call the current pattern function once, updating the 'leds' array
  gPatterns[gCurrentPatternNumber]();

  // send the 'leds' array out to the actual LED strip
  FastLED.show();  
  // insert a delay to keep the framerate modest
  FastLED.delay(1000/FRAMES_PER_SECOND); 

  // do some periodic updates
  EVERY_N_MILLISECONDS( 20 ) { gHue++; } // slowly cycle the "base color" through the rainbow
  EVERY_N_SECONDS( 10 ) { nextPattern(); } // change patterns periodically
}

#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))

void nextPattern()
{
  // add one to the current pattern number, and wrap around at the end
  gCurrentPatternNumber = (gCurrentPatternNumber + 1) % ARRAY_SIZE( gPatterns);
}

void rainbow() 
{
  // FastLED's built-in rainbow generator
//for(int i = 0; i < (NUM_LEDS/2); i++) { leds[i*2] = leds_Color[i]; /*leds[(i*2)+1] = leds_White[i];*/ } 
  fill_rainbow( leds_Color, NUM_LEDS, gHue, 7);
}

void rainbowWithGlitter() 
{
  // built-in FastLED rainbow, plus some random sparkly glitter
  rainbow();
  addGlitter(80);
}

void addGlitter( fract8 chanceOfGlitter) 
{
  if( random8() < chanceOfGlitter) {
    leds_Color[ random16(NUM_LEDS) ] += CRGB::White;
//    leds_White[ random16(NUM_LEDS) ] += CRGB::White;
//    fadeToBlackBy( leds_White, NUM_LEDS, 10);
  }
}

void confetti() 
{
  // random colored speckles that blink in and fade smoothly
  fadeToBlackBy( leds_Color, NUM_LEDS, 10);
  int pos = random16(NUM_LEDS);
  leds_Color[pos] += CHSV( gHue + random8(64), 200, 255);
}

void sinelon()
{
  // a colored dot sweeping back and forth, with fading trails
  fadeToBlackBy( leds_Color, NUM_LEDS/2, 20);
  int pos = beatsin16(13,0,NUM_LEDS/2);
  leds_Color[pos] += CHSV( gHue, 255, 192);
}

void bpm()
{
  // colored stripes pulsing at a defined Beats-Per-Minute (BPM)
  uint8_t BeatsPerMinute = 62;
  CRGBPalette16 palette = PartyColors_p;
  uint8_t beat = beatsin8( BeatsPerMinute, 64, 255);
  for( int i = 0; i < NUM_LEDS/2; i++) { //9948
    leds_Color[i] = ColorFromPalette(palette, gHue+(i*2), beat-gHue+(i*10));
  }
}

void juggle() {  //looks strange
  // eight colored dots, weaving in and out of sync with each other
  fadeToBlackBy( leds, NUM_LEDS, 20);
  byte dothue = 0;
  for( int i = 0; i < 8; i++) {
    leds[beatsin16(i+7,0,NUM_LEDS)] |= CHSV(dothue, 200, 255);
    dothue += 32;
  }
}

/*
// even numbers 0..1000
2,4,6,8,10,12,14,16,18,
20,22,24,26,28,30,32,34,36,
38,40,42,44,46,48,50,52,54,
56,58,60,62,64,66,68,70,72,
74,76,78,80,82,84,86,88,90,
92,94,96,98,100,102,104,106,108,
110,112,114,116,118,120,122,124,126,
128,130,132,134,136,138,140,142,144,

146,148,150,152,154,156,158,160,162,
164,166,168,170,172,174,176,178,180,
182,184,186,188,190,192,194,196,198,
200,202,204,206,208,210,212,214,216,
218,220,222,224,226,228,230,232,234,
236,238,240,242,244,246,248,250,252,
254,256,258,260,262,264,266,268,270,
272,274,276,278,280,282,284,286,288,

290,292,294,296,298,300,302,304,306,
308,310,312,314,316,318,320,322,324,
326,328,330,332,334,336,338,340,342,
344,346,348,350,352,354,356,358,360,
362,364,366,368,370,372,374,376,378,
380,382,384,386,388,390,392,394,396,
398,400,402,404,406,408,410,412,414,
416,418,420,422,424,426,428,430,432,
434,436,438,440,442,444,446,448,450,
452,454,456,458,460,462,464,466,468,
470,472,474,476,478,480,482,484,486,
488,490,492,494,496,498,500,502,504,
506,508,510,512,514,516,518,520,522,
524,526,528,530,532,534,536,538,540,
542,544,546,548,550,552,554,556,558,
560,562,564,566,568,570,572,574,576,
578,580,582,584,586,588,590,592,594,
596,598,600,602,604,606,608,610,612,
614,616,618,620,622,624,626,628,630,
632,634,636,638,640,642,644,646,648,
650,652,654,656,658,660,662,664,666,
668,670,672,674,676,678,680,682,684,
686,688,690,692,694,696,698,700,702,
704,706,708,710,712,714,716,718,720,
722,724,726,728,730,732,734,736,738,
740,742,744,746,748,750,752,754,756,
758,760,762,764,766,768,770,772,774,
776,778,780,782,784,786,788,790,792,
794,796,798,800,802,804,806,808,810,
812,814,816,818,820,822,824,826,828,
830,832,834,836,838,840,842,844,846,
848,850,852,854,856,858,860,862,864,
866,868,870,872,874,876,878,880,882,
884,886,888,890,892,894,896,898,900,
902,904,906,908,910,912,914,916,918,
920,922,924,926,928,930,932,934,936,
938,940,942,944,946,948,950,952,954,
956,958,960,962,964,966,968,970,972,
974,976,978,980,982,984,986,988,990,
992,994,996,998,1000

// odd numbers 0..1000
1,3,5,7,9,11,13,15,17,19,
21,23,25,27,29,31,33,35,37,
39,41,43,45,47,49,51,53,55,
57,59,61,63,65,67,69,71,73,
75,77,79,81,83,85,87,89,91,
93,95,97,99,101,103,105,107,109,
111,113,115,117,119,121,123,125,127,
129,131,133,135,137,139,141,143,

145,
147,149,151,153,155,157,159,161,163,
165,167,169,171,173,175,177,179,181,
183,185,187,189,191,193,195,197,199,
201,203,205,207,209,211,213,215,217,
219,221,223,225,227,229,231,233,235,
237,239,241,243,245,247,249,251,253,
255,257,259,261,263,265,267,269,271,
273,275,277,279,281,283,285,287,

289,
291,293,295,297,299,301,303,305,307,
309,311,313,315,317,319,321,323,325,
327,329,331,333,335,337,339,341,343,
345,347,349,351,353,355,357,359,361,
363,365,367,369,371,373,375,377,379,
381,383,385,387,389,391,393,395,397,
399,401,403,405,407,409,411,413,415,
417,419,421,423,425,427,429,431,433,
435,437,439,441,443,445,447,449,451,
453,455,457,459,461,463,465,467,469,
471,473,475,477,479,481,483,485,487,
489,491,493,495,497,499,501,503,505,
507,509,511,513,515,517,519,521,523,
525,527,529,531,533,535,537,539,541,
543,545,547,549,551,553,555,557,559,
561,563,565,567,569,571,573,575,577,
579,581,583,585,587,589,591,593,595,
597,599,601,603,605,607,609,611,613,
615,617,619,621,623,625,627,629,631,
633,635,637,639,641,643,645,647,649,
651,653,655,657,659,661,663,665,667,
669,671,673,675,677,679,681,683,685,
687,689,691,693,695,697,699,701,703,
705,707,709,711,713,715,717,719,721,
723,725,727,729,731,733,735,737,739,
741,743,745,747,749,751,753,755,757,
759,761,763,765,767,769,771,773,775,
777,779,781,783,785,787,789,791,793,
795,797,799,801,803,805,807,809,811,
813,815,817,819,821,823,825,827,829,
831,833,835,837,839,841,843,845,847,
849,851,853,855,857,859,861,863,865,
867,869,871,873,875,877,879,881,883,
885,887,889,891,893,895,897,899,901,
903,905,907,909,911,913,915,917,919,
921,923,925,927,929,931,933,935,937,
939,941,943,945,947,949,951,953,955,
957,959,961,963,965,967,969,971,973,
975,977,979,981,983,985,987,989,991,
993,995,997,999

*/