class.ilQTIMaterial.php

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<?php

declare(strict_types=1);

class ilQTIMaterial
{
    public ?string $label = null;
    public int $flow = 0;

    public array $materials = [];

    public function addMattext(ilQTIMattext $a_mattext): void
    {
        $this->materials[] = array("material" => $a_mattext, "type" => "mattext");
    }

    public function addMatimage(ilQTIMatimage $a_matimage): void
    {
        $this->materials[] = array("material" => $a_matimage, "type" => "matimage");
    }

    public function addMatapplet(ilQTIMatapplet $a_matapplet): void
    {
        $this->materials[] = array("material" => $a_matapplet, "type" => "matapplet");
    }

    public function getMaterialCount(): int
    {
        return count($this->materials);
    }

    public function getMaterial(int $a_index)
    {
        if (array_key_exists($a_index, $this->materials)) {
            return $this->materials[$a_index];
        }

        return false;
    }

    public function setFlow(int $a_flow): void
    {
        $this->flow = $a_flow;
    }

    public function getFlow(): int
    {
        return $this->flow;
    }

    public function setLabel(string $a_label): void
    {
        $this->label = $a_label;
    }

    public function getLabel(): ?string
    {
        return $this->label;
    }
}