// ************************************************************************************************
//
// Documentation for this, and the rest of the LC libraries that make this up.
// Here's the book : https://github.com/leftCoast/LC_libraryDocs/blob/main/LC_libraries.pdf
// Search for : LC_baseTools, LC_neoPixel
//
// That should keep you busy.
//
// ************************************************************************************************

#include <neoPixel.h>
#include <mechButton.h>
#include  <timeObj.h>

#define NUM_LEDS    7
#define MS_PER_LED  1000
#define COLOR       red

neoPixel    theLEDs(NUM_LEDS,3);
mechButton  ourBtn(2);
timeObj     LEDTimer(MS_PER_LED);
int         index;
bool        running;


void setup() {
  
  theLEDs.begin();
  theLEDs.setAll(&black);
  theLEDs.show();
  ourBtn.setCallback(btnClick);
  index = 0;
  running = false;
}


void btnClick(void) {

  if (!ourBtn.getState()) {
    if (running) {
      theLEDs.setAll(&black);
      theLEDs.show();
      running = false;
    } else {
      index = 0;
      theLEDs.setPixelColor(index++,&COLOR);
      theLEDs.show();
      LEDTimer.start();
      running = true;
    }
  }
}


void loop() {
  
  idle();
  if (running) {
    if (LEDTimer.ding()) {
      if (index<NUM_LEDS) {
        LEDTimer.stepTime();
        theLEDs.setPixelColor(index++,&COLOR);
        theLEDs.show();
      }
    }
  }
}