/**
     * Builds the front of the head.
     */
    public function getFrontHead(): ReadySkin
    {
        $newImage = $this->getBackground(8, 8, $this->skinRatio);

        // Face
        imagecopy($newImage, $this->skin, 0, 0, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio);
        // Area around the head
        $this->imageCopyAlpha($newImage, $this->skin, 0, 0, 40 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, imagecolorat($this->skin, 63 * $this->skinRatio, 0));

        return new ReadySkin($newImage);
    }

    /**
     * Builds the back of the head.
     */
    public function getBackHead(): ReadySkin
    {
        $newImage = $this->getBackground(8, 8, $this->skinRatio);

        // Face
        imagecopy($newImage, $this->skin, 0, 0, 24 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio);
        // Area around the head
        $this->imageCopyAlpha($newImage, $this->skin, 0, 0, 56 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, imagecolorat($this->skin, 63 * $this->skinRatio, 0));

        return new ReadySkin($newImage);
    }

    /**
     * Builds the front of the skin.
     */
    public function getFrontSkin(): ReadySkin
    {
        $newImage = $this->getBackground(16, 32, $this->skinRatio);

        // Face
        imagecopy($newImage, $this->skin, 4 * $this->skinRatio, 0, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio);
        // Area around the head
        $this->imageCopyAlpha($newImage, $this->skin, 4 * $this->skinRatio, 0, 40 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, imagecolorat($this->skin, 63 * $this->skinRatio, 0));
        // Body
        imagecopy($newImage, $this->skin, 4 * $this->skinRatio, 8 * $this->skinRatio, 20 * $this->skinRatio, 20 * $this->skinRatio, 8 * $this->skinRatio, 12 * $this->skinRatio);
        // Legs
        imagecopyresampled($newImage, $this->skin, 8 * $this->skinRatio, 20 * $this->skinRatio, (4 * $this->skinRatio + 4 * $this->skinRatio - 1), 20 * $this->skinRatio, 4 * $this->skinRatio, 12 * $this->skinRatio, 0 - 4 * $this->skinRatio, 12 * $this->skinRatio);
        imagecopy($newImage, $this->skin, 4 * $this->skinRatio, 20 * $this->skinRatio, 4 * $this->skinRatio, 20 * $this->skinRatio, 4 * $this->skinRatio, 12 * $this->skinRatio);
        // Arms
        imagecopyresampled($newImage, $this->skin, 12 * $this->skinRatio, 8 * $this->skinRatio, (44 * $this->skinRatio + 4 * $this->skinRatio - 1), 20 * $this->skinRatio, 4 * $this->skinRatio, 12 * $this->skinRatio, 0 - 4 * $this->skinRatio, 12 * $this->skinRatio);
        imagecopy($newImage, $this->skin, 0, 8 * $this->skinRatio, 44 * $this->skinRatio, 20 * $this->skinRatio, 4 * $this->skinRatio, 12 * $this->skinRatio);

        return new ReadySkin($newImage);
    }

    /**
     * Builds the back of the skin.
     */
    public function getBackSkin(): ReadySkin
    {
        $newImage = $this->getBackground(16, 32, $this->skinRatio);

        // Face
        imagecopy($newImage, $this->skin, 4 * $this->skinRatio, 0, 24 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio);
        // Area around the head
        $this->imageCopyAlpha($newImage, $this->skin, 4 * $this->skinRatio, 0, 56 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, 8 * $this->skinRatio, imagecolorat($this->skin, 63 * $this->skinRatio, 0));
        // Body
        imagecopy($newImage, $this->skin, 4 * $this->skinRatio, 8 * $this->skinRatio, 32 * $this->skinRatio, 20 * $this->skinRatio, 8 * $this->skinRatio, 12 * $this->skinRatio);
        // Legs
        imagecopy($newImage, $this->skin, 8 * $this->skinRatio, 20 * $this->skinRatio, 12 * $this->skinRatio, 20 * $this->skinRatio, 4 * $this->skinRatio, 12 * $this->skinRatio);
        imagecopyresampled($newImage, $this->skin, 4 * $this->skinRatio, 20 * $this->skinRatio, (12 * $this->skinRatio + 4 * $this->skinRatio - 1), 20 * $this->skinRatio, 4 * $this->skinRatio, 12 * $this->skinRatio, 0 - 4 * $this->skinRatio, 12 * $this->skinRatio);
        // Arms
        imagecopy($newImage, $this->skin, 12 * $this->skinRatio, 8 * $this->skinRatio, 52 * $this->skinRatio, 20 * $this->skinRatio, 4 * $this->skinRatio, 12 * $this->skinRatio);
        imagecopyresampled($newImage, $this->skin, 0 * $this->skinRatio, 8 * $this->skinRatio, (52 * $this->skinRatio + 4 * $this->skinRatio - 1), 20 * $this->skinRatio, 4 * $this->skinRatio, 12 * $this->skinRatio, 0 - 4 * $this->skinRatio, 12 * $this->skinRatio);

        return new ReadySkin($newImage);
    }