#include <FastLED.h>

// How many leds in your strip?

#define NUM_LEDS 300

// For led chips like Neopixels, 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

#define DATA_PIN 11

#define BUTTONLED 10

#define BUTTON 9

// Define the array of leds

CRGB leds[NUM_LEDS];

void setup() {

  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);

  pinMode(BUTTONLED,OUTPUT);

  digitalWrite(BUTTONLED, HIGH);

  pinMode(BUTTON, INPUT_PULLUP);

}

CRGB color = CRGB(255,0,0);

boolean btnPushedOld = false;

boolean btnPushed = false;

void loop() {

  btnPushed = !digitalRead(BUTTON);

  if(btnPushed == HIGH && btnPushedOld == LOW)

  {

     color = CRGB(random(0,255),random(0,255),random(0,255));

  }

  for (int i = 0; i < NUM_LEDS; i ++)

  {

    leds[i] = color;

  }

  FastLED.show();

  delay(1);

}