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Format PHP code

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Jan Tojnar
2022-01-13 23:09:36 +01:00
parent c56a9bf56d
commit 9a3656ef28
20 changed files with 1229 additions and 1219 deletions
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60
3DCaptcha.php
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@@ -1,59 +1,57 @@
<?php
# Martin Hozik
# 24.5.2008
# doublethink.cleverweb.cz
// Martin Hozik
// 24.5.2008
// doublethink.cleverweb.cz
session_start();
# inicializace
// inicializace
require './imagelightnessat.func.php';
require './linear_perspective.class.php';
$perspective = new linear_perspective();
// konfigurace rozměrů a pozic
$matrix_dim = ['x' => 80, 'y' => 30];
$captcha_dim = ['x' => 300, 'y' => 90];
$distance = ['x' => 1, 'y' => 1, 'z' => 1];
$metric = ['x' => 10, 'y' => 20, 'z' => 5];
$offset = ['x' => 0, 'y' => -60];
# konfigurace rozměrů a pozic
$matrix_dim = array('x' => 80, 'y' => 30);
$captcha_dim = array('x' => 300, 'y' => 90);
$distance = array('x' => 1, 'y' => 1, 'z' => 1);
$metric = array('x' => 10, 'y' => 20, 'z' => 5);
$offset = array('x' => 0, 'y' => -60);
# matrice
// matrice
$matrix = imagecreatetruecolor($matrix_dim['x'], $matrix_dim['y']);
$black = imagecolorexact($matrix, 0, 0, 0);
$white = imagecolorexact($matrix, 255, 255, 255);
imagefill($matrix, 0, 0, $white);
# font calibri neni kvůli licenčním podmínkám připojen, použijte jakýkoliv svůj
imagefttext($matrix, 20, 0, 2, 25, $black, './3DCaptcha.ttf', $_SESSION["captcha"]);
// font calibri neni kvůli licenčním podmínkám připojen, použijte jakýkoliv svůj
imagefttext($matrix, 20, 0, 2, 25, $black, './3DCaptcha.ttf', $_SESSION['captcha']);
# výpočet bodů ve 3d
$point = array();
for ($x = 0; $x < $matrix_dim['x']; $x++) {
for ($y = 0; $y < $matrix_dim['y']; $y++) {
$lightness = imagelightnessat($matrix, $x, $y);
$point[$x][$y] = $perspective->get_projection(array('x' => $x * $metric['x'] + $distance['x'], 'y' => $lightness * $metric['y'] + $distance['y'], 'z' => ($matrix_dim['y'] - $y) * $metric['z'] + $distance['z']));
}
// výpočet bodů ve 3d
$point = [];
for ($x = 0; $x < $matrix_dim['x']; ++$x) {
for ($y = 0; $y < $matrix_dim['y']; ++$y) {
$lightness = imagelightnessat($matrix, $x, $y);
$point[$x][$y] = $perspective->get_projection(['x' => $x * $metric['x'] + $distance['x'], 'y' => $lightness * $metric['y'] + $distance['y'], 'z' => ($matrix_dim['y'] - $y) * $metric['z'] + $distance['z']]);
}
}
imagedestroy($matrix);
# obrázek captcha
// obrázek captcha
$captcha = imagecreatetruecolor($captcha_dim['x'], $captcha_dim['y']);
# antialiasing čar - pro menší zátěž lze vypnout
// antialiasing čar - pro menší zátěž lze vypnout
//imageantialias($captcha, true);
$black = imagecolorexact($captcha, 255, 0, 0);
$white = imagecolorexact($captcha, 255, 255, 255);
imagefill($captcha, 0, 0, $white);
# vykreslení vrstevnic
for ($x = 1; $x < $matrix_dim['x']; $x++) {
for ($y = 1; $y < $matrix_dim['y']; $y++) {
imageline($captcha, -$point[$x - 1][$y - 1]['x'] + $offset['x'], -$point[$x - 1][$y - 1]['y'] + $offset['y'], -$point[$x][$y]['x'] + $offset['x'], -$point[$x][$y]['y'] + $offset['y'], $black);
}
// vykreslení vrstevnic
for ($x = 1; $x < $matrix_dim['x']; ++$x) {
for ($y = 1; $y < $matrix_dim['y']; ++$y) {
imageline($captcha, -$point[$x - 1][$y - 1]['x'] + $offset['x'], -$point[$x - 1][$y - 1]['y'] + $offset['y'], -$point[$x][$y]['x'] + $offset['x'], -$point[$x][$y]['y'] + $offset['y'], $black);
}
}
# výstup
// výstup
header('Content-type: image/png');
imagepng($captcha);
?>