viva_la_resistance/ucapcha

<?php
class viva_la_resistance
{
    function generate_image($canvas)
    {
        global $captcha_font_path,$captcha_img_path;
        $hit = "Номинал резистора в Омах";
        $a1=rand(0,9);
        $a2=rand(0,9);
        $a3=rand(0,9);
        $m=rand(0,9);

        $lcolor[0]=imagecolorallocate($canvas,0,0,0);       // black
        $lcolor[1]=imagecolorallocate($canvas,150,75,0);    // brown
        $lcolor[2]=imagecolorallocate($canvas,255,0,0);     // red
        $lcolor[3]=imagecolorallocate($canvas,255,165,0);   // orange
        $lcolor[4]=imagecolorallocate($canvas,255,255,0);   // yellow
        $lcolor[5]=imagecolorallocate($canvas,0,255,0);     // green
        $lcolor[6]=imagecolorallocate($canvas,0,0,255);     // blue
        $lcolor[7]=imagecolorallocate($canvas,139,0,255);   // violet
        $lcolor[8]=imagecolorallocate($canvas,127,127,127); // grey
        $lcolor[9]=imagecolorallocate($canvas,255,255,255); // white

        // выводы резистора
        $color = imagecolorallocate($canvas, rand(100,255), rand(100,255), rand(100,255));
        imagefilledrectangle($canvas,20,33,40,37,$color);
        imagefilledrectangle($canvas,140,33,160,37,$color);
        // тело резистора
        $color = imagecolorallocate($canvas, rand(100,255), rand(100,255), rand(100,255));
        imagefilledrectangle($canvas,40,20,140,50,$color);

        // линии
        imagefilledrectangle($canvas,55,20,65,50,$lcolor[$a1]);
        imagefilledrectangle($canvas,75,20,85,50,$lcolor[$a2]);
        imagefilledrectangle($canvas,95,20,105,50,$lcolor[$a3]);
        imagefilledrectangle($canvas,115,20,125,50,$lcolor[$m]);

        imagefttext($canvas, 11, rand (-5,5), 15, 75, $color, $captcha_font_path."/LiberationMono-Bold.ttf", $hit);
        $nme=$this->ucaptcha->get_filename();
        imagepng($canvas);
        $ans=(($a1*100)+($a2*10)+($a3*1))*pow(10,$m);
        $captcha[0]=$nme;
        $captcha[1]=$ans;
        return $captcha;
    }
}
?>