light.scale([0, 255]).on('data', function(){
pixels = [];
for(var i = 0; i < 120; i++){
pixels.push([this.value, this.value, this.value]);
}
client.put_pixels(strip.id, pixels);
});
// Here's how you move the ball
function moveBall() {
grid[y*ylen+x] = bgnd; // Turn off ball in present location
x += xdir; // Move in the current direction
if(x<0 || x>xlen-1) { // See if you have fallen off either edge
x = xlen/2; // If so, restart in middle
}
grid[y*ylen+x] = color; // Draw ball in new location
client.put_pixels(strip.id, grid); // Display the grid
setTimeout(moveBall, ms); // Schedule the next ball move
}
setInterval(function(){
client.put_pixels(strip.id, pixels);
new_pixel = pixels[0];
pixels = pixels.slice(1);
pixels.push(new_pixel);
}, 200);