# include <Adafruit_NeoPixel.h>

# define LED_PIN 2 //Output pin
# define LED_COUNT 25

int delayval = 10; // 25;// Delay in ticks(1000ticks = 1 sec)
int colorRed = 0;
int colorGreen = 0;
int colorBlue = 0;
int switch_pin = 9;
int switch_state;
int l = 0;

bool interrupted;

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);
// NEO_GRB means how it will send the color signals, green, red, and finally blue. You may need to change it.

//...
bool myDelay(unsigned long milliseconds)
{
//... uncomment to use real delay
// delay(milliseconds);
//  return false;

  unsigned long startTime = millis();

  while (millis() - startTime <= milliseconds)
    if (digitalRead(switch_pin) == LOW)
      return true;

  return false;
}

void setup() {
  Serial.begin(115200);
  Serial.println("\nNews, Weather and Sports!\n");

  strip.begin(); // Start Strip
  strip.show(); // Clears out the colors from the previous program
  
  pinMode(LED_BUILTIN, OUTPUT); // Activates built-in LED to confirm code is working

  pinMode(switch_pin, INPUT_PULLUP);
}

void loop() {
  static long counter;
  Serial.print("loop... ");
  Serial.println(counter);
  counter++;

  switch_state = digitalRead(switch_pin) == HIGH;
  Serial.println("      gonna onOff");  
  onOff();//detects whether switch is on or off and runs on and off animations

  Serial.println("             gonna pulse"); 
  pulse();//pulse/breathing animation.

  digitalWrite(LED_BUILTIN, HIGH);//test to make sure the board is running correctly
}

void onOff() {

    if (!switch_state) {//if switch is off lights activate in a down pattern
  
    for (l=LED_COUNT; l >= 0; l--) {
//...        colorRed = 0;
    
        strip.setPixelColor(l, strip.Color(0, 0, 0));
   
        strip.show();
        delay(17);
    }
  }
  else {
    
  	for (l=0; l < LED_COUNT; l++) {//if switch is on lights activate in an up pattern
      colorRed = 255;
      
      strip.setPixelColor(l, strip.Color(colorRed, 0, 0));// Set color RGB

      strip.show();// This makes the color actually appear.
      delay(17);
    }
  }
}

void pulse() {
  if (switch_state != LOW) {
    
     for (colorRed=255; colorRed > 5; colorRed -=1) {// brings red value from 255 down gradually to 5
      
      for (int i=0; i < strip.numPixels(); i++) {
          strip.setPixelColor(i, colorRed, colorGreen, colorBlue);
        
      }
        strip.show();
        if (myDelay(delayval)) return;
    
     }
      for (colorRed=5; colorRed < 255; colorRed +=1) {//brings red value from 5 up gradually to 255
      
       for (int i=0; i < strip.numPixels(); i++) {
            strip.setPixelColor(i, colorRed, colorGreen, colorBlue);
        
        }
        strip.show();
        if (myDelay(delayval)) return;
     }
  }
}