for ($x = 0; $x < 256; $x++) {
$r = $x;
$g = (255 - $y + $x) / 2;
$b = $y * (255 - $x) / 256;
imagesetpixel($pixels, $x, $y, imagecolorallocate($pixels, $r, $g, $b));
}
}
$dither = caca_create_dither($pixels);
if ($format == "ansi" || $format == "utf8") {
caca_set_dither_charset($dither, "shades");
}
caca_dither_bitmap($cv, 0, 0, caca_get_canvas_width($cv), caca_get_canvas_height($cv), $dither, $pixels);
caca_set_color_ansi($cv, CACA_WHITE, CACA_BLACK);
caca_draw_thin_box($cv, 0, 0, WIDTH - 1, HEIGHT - 1);
caca_set_color_ansi($cv, CACA_BLACK, CACA_WHITE);
caca_fill_ellipse($cv, WIDTH / 2, HEIGHT / 2, WIDTH / 4, HEIGHT / 4, ord(' '));
caca_set_color_ansi($cv, CACA_LIGHTGRAY, CACA_BLACK);
caca_put_str($cv, WIDTH / 2 - 12, HEIGHT / 2 - 6, " lightgray on black ");
caca_set_color_ansi($cv, CACA_DEFAULT, CACA_TRANSPARENT);
caca_put_str($cv, WIDTH / 2 - 12, HEIGHT / 2 - 5, " default on transparent ");
caca_set_color_ansi($cv, CACA_BLACK, CACA_WHITE);
caca_put_str($cv, WIDTH / 2 - 12, HEIGHT / 2 - 4, " black on white ");
caca_set_color_ansi($cv, CACA_BLACK, CACA_WHITE);
caca_put_str($cv, WIDTH / 2 - 8, HEIGHT / 2 - 3, "[<><><><> <>--<>]");
caca_put_str($cv, WIDTH / 2 - 8, HEIGHT / 2 - 2, "[ドラゴン ボーレ]");
caca_put_str($cv, WIDTH / 2 - 7, HEIGHT / 2 + 2, "äβç ░▒▓█▓▒░ ΔЗҒ");
caca_put_str($cv, WIDTH / 2 - 5, HEIGHT / 2 + 4, "(\") \\o/ <&>");
caca_set_attr($cv, CACA_BOLD);
caca_put_str($cv, WIDTH / 2 - 16, HEIGHT / 2 + 3, "Bold");
caca_set_attr($cv, CACA_BLINK);
caca_put_str($cv, WIDTH / 2 - 9, HEIGHT / 2 + 3, "Blink");
function fillEllipse($x1, $y1, $x2, $y2, $char)
{
return caca_fill_ellipse($this->cv, $x1, $y1, $x2, $y2, $char);
}
function demo_ellipses($cv, $bounds, $outline)
{
$w = caca_get_canvas_width($cv);
$h = caca_get_canvas_height($cv);
if ($bounds) {
$x = caca_rand(-$w, 2 * $w);
$y = caca_rand(-$h, 2 * $h);
$a = caca_rand(0, $w);
$b = caca_rand(0, $h);
} else {
do {
$x = caca_rand(0, $w);
$y = caca_rand(0, $h);
$a = caca_rand(0, $w);
$b = caca_rand(0, $h);
} while ($x - $a < 0 || $x + $a >= $w || $y - $b < 0 || $y + $b >= $h);
}
caca_set_color_ansi($cv, caca_rand(0, 16), caca_rand(0, 16));
caca_fill_ellipse($cv, $x, $y, $a, $b, ord('#'));
caca_set_color_ansi($cv, caca_rand(0, 16), CACA_BLACK);
if ($outline == 2) {
caca_draw_thin_ellipse($cv, $x, $y, $a, $b);
} else {
if ($outline == 1) {
caca_draw_ellipse($cv, $x, $y, $a, $b, ord('#'));
}
}
}