source: libcaca/trunk/caca-php/examples/polyline.php @ 3135 Tweet

#!/usr/bin/php5
<?php

function transform($tbl, $tx, $ty, $sx, $sy) {
        $result = array();
        foreach($tbl as $pt)
                $result[] = array($pt[0] * $sx + $tx, $pt[1] * $sy + $ty);
        return $result;
}

$canvas = caca_create_canvas(0, 0);
$display = caca_create_display($canvas);
if (!$display) {
        die("Error while attaching canvas to display\n");
}

$tbl = array(
        array(5, 2),
        array(15, 2),
        array(20, 4),
        array(25, 2),
        array(34, 2),
        array(37, 4),
        array(36, 9),
        array(20, 16),
        array(3, 9),
        array(2, 4),
        array(5, 2)
);

for ($i = 0; $i < 10; $i++) {
        caca_set_color_ansi($canvas, 1 + (($color += 4) % 15), CACA_TRANSPARENT);
        $scale = caca_rand(4, 10) / 10;
        $translate = array(caca_rand(-5, 55), caca_rand(-2, 25));
        $pts = transform($tbl, $translate[0], $translate[1], $scale, $scale);
        caca_draw_thin_polyline($canvas, $pts);
}

caca_put_str($canvas, 1, 1, "Caca forever...");
caca_refresh_display($display);
sleep(5);

?>