Файл: sys/includes/MultiWave.php
Строк: 43
<?
function MultiWave($img)
{
$width=imagesx($img);
$height=imagesy($img);
$img2=imagecreatetruecolor($width, $height);
$rand1 = mt_rand(700000, 1000000) / 15000000;
$rand2 = mt_rand(700000, 1000000) / 15000000;
$rand3 = mt_rand(700000, 1000000) / 15000000;
$rand4 = mt_rand(700000, 1000000) / 15000000;
$rand5 = mt_rand(0, 3141592) / 1000000;
$rand6 = mt_rand(0, 3141592) / 1000000;
$rand7 = mt_rand(0, 3141592) / 1000000;
$rand8 = mt_rand(0, 3141592) / 1000000;
$rand9 = mt_rand(400, 600) / 100;
$rand10 = mt_rand(400, 600) / 100;
for($x = 0; $x < $width; $x++){
for($y = 0; $y < $height; $y++){
$sx = $x + ( sin($x * $rand1 + $rand5) + sin($y * $rand3 + $rand6) ) * $rand9;
$sy = $y + ( sin($x * $rand2 + $rand7) + sin($y * $rand4 + $rand8) ) * $rand10;
if($sx < 0 || $sy < 0 || $sx >= $width - 10 || $sy >= $height - 10){
$color = 255;
$color_x = 255;
$color_y = 255;
$color_xy = 255;
}else{
$color = (imagecolorat($img, $sx, $sy) >> 16) & 0xFF;
$color_x = (imagecolorat($img, $sx + 1, $sy) >> 16) & 0xFF;
$color_y = (imagecolorat($img, $sx, $sy + 1) >> 16) & 0xFF;
$color_xy = (imagecolorat($img, $sx + 1, $sy + 1) >> 16) & 0xFF;
}
if($color == $color_x && $color == $color_y && $color == $color_xy){
$newcolor=$color;
}else{
$frsx = $sx - floor($sx);
$frsy = $sy - floor($sy);
$frsx1 = 1 - $frsx;
$frsy1 = 1 - $frsy;
$newcolor = floor( $color * $frsx1 * $frsy1 + $color_x * $frsx * $frsy1 + $color_y * $frsx1 * $frsy + $color_xy * $frsx * $frsy );
}
imagesetpixel($img2, $x, $y, imagecolorallocate($img2, $newcolor, $newcolor, $newcolor));
}
}
return $img2;
}
?>