#include <FastLED.h>

// How many leds in your strip?
#define NUM_LEDS 100

// For led chips like WS2812, which have a data line, ground, and power, you just
// need to define DATA_PIN.  For led chipsets that are SPI based (four wires - data, clock,
// ground, and power), like the LPD8806 define both DATA_PIN and CLOCK_PIN
// Clock pin only needed for SPI based chipsets when not using hardware SPI
#define DATA_PIN 5
#define CLOCK_PIN 13
int fc;
float t;
// Define the array of leds
CRGB leds[NUM_LEDS];

void setup() { 
    // Uncomment/edit one of the following lines for your leds arrangement.
    // ## Clockless types ##
    //FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);  // GRB ordering is assumed
    // FastLED.addLeds<SM16703, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<TM1829, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<TM1812, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<TM1809, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<TM1804, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<TM1803, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<UCS1903, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<UCS1903B, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<UCS1904, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<UCS2903, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<WS2812, DATA_PIN, RGB>(leds, NUM_LEDS);  // GRB ordering is typical
    // FastLED.addLeds<WS2852, DATA_PIN, RGB>(leds, NUM_LEDS);  // GRB ordering is typical
    // FastLED.addLeds<WS2812B, DATA_PIN, RGB>(leds, NUM_LEDS);  // GRB ordering is typical
    // FastLED.addLeds<GS1903, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<SK6812, DATA_PIN, RGB>(leds, NUM_LEDS);  // GRB ordering is typical
    // FastLED.addLeds<SK6822, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<APA106, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<PL9823, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<SK6822, DATA_PIN, RGB>(leds, NUM_LEDS);
     FastLED.addLeds<WS2811, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<WS2813, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<APA104, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<WS2811_400, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<GE8822, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<GW6205, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<GW6205_400, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<LPD1886, DATA_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<LPD1886_8BIT, DATA_PIN, RGB>(leds, NUM_LEDS);
    // ## Clocked (SPI) types ##
    // FastLED.addLeds<LPD6803, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);  // GRB ordering is typical
    // FastLED.addLeds<LPD8806, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);  // GRB ordering is typical
    // FastLED.addLeds<WS2801, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<WS2803, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<SM16716, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);
    // FastLED.addLeds<P9813, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);  // BGR ordering is typical
    // FastLED.addLeds<DOTSTAR, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);  // BGR ordering is typical
    // FastLED.addLeds<APA102, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);  // BGR ordering is typical
    // FastLED.addLeds<SK9822, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);  // BGR ordering is typical
}

void loop()
{ 
    t = float(millis()) * .;
    for (int i = 0; i < 100; i++)
        leds[i] = CRGB::Black;


//une autre forme
//
//    for (int i = 0; i < 100; i++)
//    {
//        float tt = float(t)/10.;
//        int j = 100 - i;
//        int test = (i + t / 2) % 89- ((i + t / 2) % 89) % 3;
//        if(test == 0)
//        {
//            leds[i] = CRGB::CRGB(255, i, 0);
//        }
//         test = (i + t / 6) % 76- ((i + t / 2) % 76) % 3;
//        if(test == 0)
//        {
//            leds[j] = CRGB::CRGB(0, 255, (.7+.5*sin(float(j)/14.666 + tt)) * 128);
//        }
//
//        
//         test = (i + t / 1) % 43- ((i + t / 1) % 7643) % 3;
//        if(test == 0)
//        {
//            leds[j] = CRGB::CRGB(0, 255, (.7+.5*sin(float(j)/14.666 + tt)) * 128);
//        }
//        
//        test = (i + t / 2) % 34- ((i + t / 2) % 34) % 3;
//        if(test == 0)
//        {
//            leds[j] = CRGB::CRGB((0.7+.5*cos(float(i)/14.666 + tt)) * 128, 0, 255);
//        }
//        test = (i + t / 3) % 89- ((i + t / 3) % 89) % 6;
//       
//        if (test == 43)
//        {
//          leds[i] = CRGB::CRGB(i * 2.5,0,255);
//        }
//    }

    leds[100 - int(t / 2.27) / 64 % 100] = CRGB::CRGB(128, 128, 0);
    leds[int(t / 1.37) / 64 % 100] = CRGB::CRGB(0, 128, 128);
    leds[100 - int(t / 1.97) / 64 % 100] = CRGB::CRGB(128, 0, 128);
    
    leds[int(t / 2.7) / 128 % 100] = CRGB::CRGB(128, 64, 64);
    leds[100 - int(t / 3.27) / 128 % 100] = CRGB::CRGB(64, 128, 64);
    leds[int(t / 1.47) / 128 % 100] = CRGB::CRGB(64, 64, 128);
    leds[100 - int(t / 2.27) / 128 % 100] = CRGB::CRGB(96, 96, 64);
    leds[int(t / 1.37) / 128 % 100] = CRGB::CRGB(96, 64, 96);
    leds[100 - int(t / 1.97) / 128 % 100] = CRGB::CRGB(64, 96, 96);
    
    leds[int(t / 1.7) / 64 % 100] = CRGB::CRGB(255, 0, 0);
    leds[100 - int(t / 1.27) / 64 % 100] = CRGB::CRGB(0, 255, 0);
    leds[int(t / 1.47) / 64 % 100] = CRGB::CRGB(0, 0, 255);
    
    //  leds[57 + count]
    FastLED.show();
    delay(4);
    // Now turn the LED off, then pause
}