test_ghosting.js

var flash = false;
var error = false;
var flipBacklight = false;
var flipBacklightInit = false;

var showPattern = 10;
var brightness = 10;
var time = 30;
var size = 8;

function doPattern(){
  if (showPattern < 10){
    g.setColor(1,0,0);
    g.drawRect(showPattern*5, 0, 9*5+4, 3);
    g.fillRect(showPattern*5+1, 0, showPattern*5+4+1, 3);
  }
  if (showPattern == 0){
    g.setColor(1,1,1);
    var flip = 1;
    for (i=0; i<g.getWidth()/size; i++){
      for (j=1; j<g.getHeight()/size; j++){
        flip=(flip+1)%2;
        g.setColor(flip,flip,flip);
        g.fillRect(i*size,j*size,i*size+size,j*size+size);
      }
    }
  } else if (showPattern == 10){
    print("blank");
    showPattern=-1;
    g.setColor(0,0,0);
    g.fillRect(0,0,g.getWidth(),g.getHeight());
    if (flash){
      g.setColor(1,1,1);
      g.fillRect(0,0,g.getWidth(),g.getHeight());
      setTimeout(function(){
        g.setColor(0,0,0);
        g.fillRect(0,0,g.getWidth(),g.getHeight());
      }, 400);
    }
    if (flipBacklight){
      Bangle.setLCDBrightness(0);
      setTimeout(function(){
      Bangle.setLCDBrightness(brightness);
      }, 200);
    }
  }
  showPattern++;

  if (error){
    i_dont_exist();
  }
}

print("init");
Bangle.setLCDTimeout(0);
Bangle.setLCDBrightness(brightness);

Bangle.on('touch', function(button, xy) {
  Bangle.setLCDBrightness(0);
  setTimeout(function(){
    Bangle.setLCDBrightness(brightness);
  }, 200);
});

if (flipBacklightInit){
  Bangle.setLCDBrightness(0);
  setTimeout(function(){
  Bangle.setLCDBrightness(brightness);
  }, 200);
}

g.clear();
g.setColor(0,0,0);
g.fillRect(0,0,g.getWidth(),g.getHeight());

doPattern();
setInterval(doPattern, time*100);