blessing-skin-server/app/Services/Minecraft.php
2016-08-29 12:19:21 +08:00

164 lines
8.0 KiB
PHP

<?php
namespace App\Services;
class Minecraft
{
/**
* Cut and resize to get avatar from skin, HD support by <xfl03@hotmail.com>
*
* @author https://github.com/jamiebicknell/Minecraft-Avatar/blob/master/face.php
* @param string $resource, img path or base64
* @param int $size
* @param string $view, default for 'f'
* @param bool $base64, if given $resource is encoded in base64
* @return resource
*/
public static function generateAvatarFromSkin($resource, $size, $view='f', $base64 = false)
{
$src = $base64 ? imagecreatefromstring(base64_decode($resource)) : imagecreatefrompng($resource);
$dest = imagecreatetruecolor($size, $size);
$ratio = imagesx($src) / 64; // width/64
// f => front, l => left, r => right, b => back
$x = array('f' => 8, 'l' => 16, 'r' => 0, 'b' => 24);
imagecopyresized($dest, $src, 0, 0, $x[$view] * $ratio, 8 * $ratio, $size, $size, 8 * $ratio, 8 * $ratio); // Face
imagecolortransparent($src, imagecolorat($src, 63 * $ratio, 0)); // Black Hat Issue
imagecopyresized($dest, $src, 0, 0, ($x[$view] + 32) * $ratio, 8 * $ratio, $size, $size, 8 * $ratio, 8 * $ratio); // Accessories
imagedestroy($src);
return $dest;
}
/**
* Generate skin preview
*
* @link https://github.com/NC22/Minecraft-HD-skin-viewer-2D/blob/master/SkinViewer2D.class.php
* @param resource $resource
* @param int $size
* @param bool|string $side 'front' or 'back'
* @param bool $base64 Generate image from base64 string
* @param int $gap Gap size between front & back preview
* @return resource
*/
public static function generatePreviewFromSkin($resource, $size, $side = false, $base64 = false, $gap = 4)
{
$src = $base64 ? imagecreatefromstring(base64_decode($resource)) : imagecreatefrompng($resource);
$ratio = imagesx($src) / 64;
/**
* Check if double layer skin given
* @var bool
*/
$double = imagesy($src) == 64 * $ratio;
$dest = imagecreatetruecolor((($side) ? 16 : 32) * $ratio + $gap * $ratio, 32 * $ratio);
// width of front preview + width of gap
$half_width = ($side) ? 0 : (($side) ? 8 : 16) * $ratio + $gap * $ratio;
$transparent = imagecolorallocatealpha($dest, 255, 255, 255, 127);
imagefill($dest, 0, 0, $transparent);
if (!$side or $side === 'front') {
imagecopy($dest, $src, 4 * $ratio, 0 * $ratio, 8 * $ratio, 8 * $ratio, 8 * $ratio, 8 * $ratio); // Head - 1
imagecopy($dest, $src, 4 * $ratio, 0 * $ratio, 40 * $ratio, 8 * $ratio, 8 * $ratio, 8 * $ratio); // Head - 2
imagecopy($dest, $src, 0 * $ratio, 8 * $ratio, 44 * $ratio, 20 * $ratio, 4 * $ratio, 12 * $ratio); // Right Arm - 1
imagecopy($dest, $src, 4 * $ratio, 8 * $ratio, 20 * $ratio, 20 * $ratio, 8 * $ratio, 12 * $ratio); // Body - 1
imagecopy($dest, $src, 4 * $ratio, 20 * $ratio, 4 * $ratio, 20 * $ratio, 4 * $ratio, 12 * $ratio); // Right Leg - 1
// Check if given skin is double layer skin.
// If not, flip right arm/leg to generate left arm/leg.
if ($double) {
imagecopy($dest, $src, 12 * $ratio, 8 * $ratio, 36 * $ratio, 52 * $ratio, 4 * $ratio, 12 * $ratio); // Left Arm - 1
imagecopy($dest, $src, 8 * $ratio, 20 * $ratio, 20 * $ratio, 52 * $ratio, 4 * $ratio, 12 * $ratio); // Left Leg - 1
// copy second layer
imagecopy($dest, $src, 0 * $ratio, 8 * $ratio, 44 * $ratio, 36 * $ratio, 4 * $ratio, 12 * $ratio); // Right Arm - 2
imagecopy($dest, $src, 12 * $ratio, 8 * $ratio, 52 * $ratio, 52 * $ratio, 4 * $ratio, 12 * $ratio); // Left Arm - 2
imagecopy($dest, $src, 4 * $ratio, 8 * $ratio, 20 * $ratio, 36 * $ratio, 8 * $ratio, 12 * $ratio); // Body - 2
imagecopy($dest, $src, 4 * $ratio, 20 * $ratio, 4 * $ratio, 36 * $ratio, 4 * $ratio, 12 * $ratio); // Right Leg - 2
imagecopy($dest, $src, 8 * $ratio, 20 * $ratio, 4 * $ratio, 52 * $ratio, 4 * $ratio, 12 * $ratio); // Left Leg - 2
} else {
self::imageflip($dest, $src, 12 * $ratio, 8 * $ratio, 44 * $ratio, 20 * $ratio, 4 * $ratio, 12 * $ratio);
self::imageflip($dest, $src, 8 * $ratio, 20 * $ratio, 4 * $ratio, 20 * $ratio, 4 * $ratio, 12 * $ratio);
}
}
if (!$side or $side === 'back') {
imagecopy($dest, $src, $half_width + 4 * $ratio, 8 * $ratio, 32 * $ratio, 20 * $ratio, 8 * $ratio, 12 * $ratio);
imagecopy($dest, $src, $half_width + 4 * $ratio, 0 * $ratio, 24 * $ratio, 8 * $ratio, 8 * $ratio, 8 * $ratio);
imagecopy($dest, $src, $half_width + 8 * $ratio, 20 * $ratio, 12 * $ratio, 20 * $ratio, 4 * $ratio, 12 * $ratio);
imagecopy($dest, $src, $half_width + 4 * $ratio, 0 * $ratio, 56 * $ratio, 8 * $ratio, 8 * $ratio, 8 * $ratio);
imagecopy($dest, $src, $half_width + 12 * $ratio, 8 * $ratio, 52 * $ratio, 20 * $ratio, 4 * $ratio, 12 * $ratio);
if ($double) {
imagecopy($dest, $src, $half_width + 0 * $ratio, 8 * $ratio, 44 * $ratio, 52 * $ratio, 4 * $ratio, 12 * $ratio);
imagecopy($dest, $src, $half_width + 4 * $ratio, 20 * $ratio, 28 * $ratio, 52 * $ratio, 4 * $ratio, 12 * $ratio);
// copy second layer
imagecopy($dest, $src, $half_width + 4 * $ratio, 8 * $ratio, 32 * $ratio, 36 * $ratio, 8 * $ratio, 12 * $ratio);
imagecopy($dest, $src, $half_width + 12 * $ratio, 8 * $ratio, 52 * $ratio, 36 * $ratio, 4 * $ratio, 12 * $ratio);
imagecopy($dest, $src, $half_width + 0 * $ratio, 8 * $ratio, 60 * $ratio, 52 * $ratio, 4 * $ratio, 12 * $ratio);
imagecopy($dest, $src, $half_width + 8 * $ratio, 20 * $ratio, 12 * $ratio, 36 * $ratio, 4 * $ratio, 12 * $ratio);
imagecopy($dest, $src, $half_width + 4 * $ratio, 20 * $ratio, 12 * $ratio, 52 * $ratio, 4 * $ratio, 12 * $ratio);
} else {
self::imageflip($dest, $src, $half_width + 0 * $ratio, 8 * $ratio, 52 * $ratio, 20 * $ratio, 4 * $ratio, 12 * $ratio);
self::imageflip($dest, $src, $half_width + 4 * $ratio, 20 * $ratio, 12 * $ratio, 20 * $ratio, 4 * $ratio, 12 * $ratio);
}
}
$size_x = ($side) ? $size / 2 : $size / 32 * (32 + $gap);
$fullsize = imagecreatetruecolor($size_x, $size);
imagesavealpha($fullsize, true);
$transparent = imagecolorallocatealpha($fullsize, 255, 255, 255, 127);
imagefill($fullsize, 0, 0, $transparent);
imagecopyresized($fullsize, $dest, 0, 0, 0, 0, imagesx($fullsize), imagesy($fullsize), imagesx($dest), imagesy($dest));
imagedestroy($dest);
imagedestroy($src);
return $fullsize;
}
private static function imageflip(&$result, &$img, $rx = 0, $ry = 0, $x = 0, $y = 0, $size_x = null, $size_y = null)
{
if ($size_x < 1)
$size_x = imagesx($img);
if ($size_y < 1)
$size_y = imagesy($img);
imagecopyresampled($result, $img, $rx, $ry, ($x + $size_x - 1), $y, $size_x, $size_y, 0 - $size_x, $size_y);
}
public static function generatePreviewFromCape($resource)
{
$src = imagecreatefrompng($resource);
$dest = imagecreatetruecolor(250, 166);
imagesavealpha($dest, true);
$trans_colour = imagecolorallocatealpha($dest, 0, 0, 0, 127);
imagefill($dest, 0, 0, $trans_colour);
$src_width = imagesx($src) * 11 / 64;
$src_height = imagesy($src) * 17 / 32;
$dst_height = 100;
// 100 / 17 * 11
$dst_width = 64;
// dst_x = (250 - 64) / 2
imagecopyresized($dest, $src, 93, 30, 0, 0, $dst_width, $dst_height, $src_width, $src_height);
imagedestroy($src);
return $dest;
}
}