midorikocak / php-test-gol

    public function start($verbose = true)

    {

        if ($this->organisms == null || $this->species == null || $this->iterations == null) {

            throw new \Exception('Not ready yet');

        }

        $this->life->start($verbose);

    private function createWorld()

    {

        if ($this->size == null || $this->species == null | $this->iterations == null) {

            throw new \Exception('Not ready yet');

        }

        if ($this->size < 0 || $this->species < 0 || $this->iterations < 0) {

            throw new \InvalidArgumentException("World arguments should be positive.");

    private function createOrganisms()

    {

        if ($this->size == null || $this->species == null) {

            throw new \Exception('Not ready yet');

        }

        if ($this->size < 0 || $this->species < 0) {

            throw new \InvalidArgumentException("Organisms arguments should be positive.");