public function __invoke()
{
$light = new Light();
$grid = new Grid(1000, 1000, $light);
$parser = new InstructionParser();
$input = file(__DIR__ . '/../../input/Day6/input.txt');
foreach ($input as $line) {
// Parse instruction, pass to grid
$commands = $parser->parseLine($line);
$grid->doOperation($commands[0], $commands[1], $commands[2], $commands[3], $commands[4]);
}
$numberOfLights = $grid->getTotalBrightness();
echo "Total brightness: " . $numberOfLights . "\n\n";
}
