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plugin.yml

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+name: S3DItemToolS
+main: skh6075\s3ditemtools\S3DItemToolS
+author: AvasKr
+version: 1.0.0
+api: 3.10.0
+website: https://github.com/GodVas

src/skh6075/s3ditemtools/S3DItemToolS.php

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+<?php
+
+namespace skh6075\s3ditemtools;
+
+use pocketmine\plugin\PluginBase;
+use skh6075\s3ditemtools\skin\SkinFactory;
+use function is_dir;
+use function mkdir;
+use const DIRECTORY_SEPARATOR;
+
+class S3DItemToolS extends PluginBase{
+
+    /** @var ?S3DItemToolS */
+    private static $instance = null;
+    /** @var string[] */
+    protected $directories = [
+        "models",
+        "images",
+        "skins"
+    ];
+
+
+    public static function getInstance(): ?S3DItemToolS{
+        return self::$instance;
+    }
+
+    public function onLoad(): void{
+        if (self::$instance === null) {
+            self::$instance = $this;
+        }
+    }
+
+    public function onEnable(): void{
+        foreach ($this->directories as $directory) {
+            if (is_dir($this->getDataFolder() . $directory . DIRECTORY_SEPARATOR)) {
+                continue;
+            }
+            mkdir($this->getDataFolder() . $directory . DIRECTORY_SEPARATOR);
+        }
+        SkinFactory::getInstance()->init();
+    }
+}

src/skh6075/s3ditemtools/listener/EventListener.php

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+<?php
+
+namespace skh6075\s3ditemtools\listener;
+
+use pocketmine\event\Listener;
+use pocketmine\event\player\PlayerItemHeldEvent;
+use pocketmine\event\player\PlayerJoinEvent;
+use pocketmine\event\player\PlayerQuitEvent;
+use skh6075\s3ditemtools\skin\PlayerSkin;
+use skh6075\s3ditemtools\skin\SkinFactory;
+use skh6075\s3ditemtools\skin\SkinReflection;
+
+class EventListener implements Listener{
+
+    /**
+     * @param PlayerJoinEvent $event
+     * @priority HIGHEST
+     */
+    public function onPlayerJoin(PlayerJoinEvent $event): void{
+        $player = $event->getPlayer();
+        PlayerSkin::getInstance()->makeSkinImage($player);
+        PlayerSkin::getInstance()->setPlayerSkin($player);
+    }
+
+    /**
+     * @param PlayerQuitEvent $event
+     * @priority HIGHEST
+     */
+    public function onPlayerQuit(PlayerQuitEvent $event): void{
+        PlayerSkin::getInstance()->deleteSkinImage($event->getPlayer());
+    }
+
+    public function onPlayerItemdHeld(PlayerItemHeldEvent $event): void{
+        $player = $event->getPlayer();
+        $item   = $event->getItem();
+
+        if (!is_null($item->getNamedTagEntry("3d_model"))) {
+            if (($reflection = SkinFactory::getInstance()->getSkinReflection($item->getNamedTagEntry("3d_model")->getValue())) instanceof SkinReflection) {
+                $reflection->sendSkinImage($player);
+            } else {
+                PlayerSkin::getInstance()->callbackSkin($player);
+            }
+        }
+    }
+}

src/skh6075/s3ditemtools/skin/PlayerSkin.php

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+<?php
+
+namespace skh6075\s3ditemtools\skin;
+
+use pocketmine\entity\Skin;
+use pocketmine\Player;
+use pocketmine\Server;
+use skh6075\s3ditemtools\S3DItemToolS;
+use function file_exists;
+use function file_get_contents;
+use function unlink;
+use function intdiv;
+use function ord;
+use function chr;
+use function imagecreatetruecolor;
+use function imagefill;
+use function imagecolorallocatealpha;
+use function imagesetpixel;
+use function imagesavealpha;
+use function imagecreatefrompng;
+use function imagecopymerge;
+use function imagedestroy;
+use function getimagesize;
+
+final class PlayerSkin{
+
+    /** @var ?PlayerSkin */
+    private static $instance = null;
+    /** @var S3DItemToolS */
+    protected $plugin;
+    /** @var Skin[] */
+    private static $skins = [];
+
+
+    public static function getInstance(): ?PlayerSkin{
+        if (self::$instance === null) {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+
+    public function __construct() {
+        $this->plugin = S3DItemToolS::getInstance();
+    }
+
+    public function getPlayerSkin(Player $player): ?Skin{
+        return self::$skins[$player->getLowerCaseName()] ?? null;
+    }
+
+    public function setPlayerSkin(Player $player): void{
+        self::$skins[$player->getLowerCaseName()] = $player->getSkin();
+    }
+
+    /**
+     * @param Player $player
+     */
+    public function makeSkinImage(Player $player): void{
+        $skinPath = $this->plugin->getDataFolder() . "skins" . DIRECTORY_SEPARATOR . $player->getLowerCaseName() . ".png";
+        $image    = $this->convertSkinImage($player->getSkin()->getSkinData());
+        $background = imagecolorallocate($image, 255, 255, 255);
+        imagecolortransparent($image, $background);
+        imagepng($image, $skinPath);
+        imagedestroy($image);
+    }
+
+    /**
+     * @param string $skinData
+     * @return false|resource
+     */
+    private function convertSkinImage(string $skinData) {
+        $size   = strlen($skinData);
+        $width  = SkinMap::SKIN_WIDTH_SIZE[$size];
+        $height = SkinMap::SKIN_HEIGHT_SIZE[$size];
+        $pos    = 0;
+        $image  = imagecreatetruecolor($width, $height);
+
+        imagefill($image, 0, 0, imagecolorallocatealpha($image, 0, 0, 0, 127));
+        for ($y = 0; $y < $height; $y ++) {
+            for ($x = 0; $x < $width; $x ++) {
+                $r = ord($skinData[$pos]);
+                $pos ++;
+                $g = ord($skinData[$pos]);
+                $pos ++;
+                $b = ord($skinData[$pos]);
+                $pos ++;
+                $a = 127 - intdiv(ord($skinData[$pos]), 2);
+                $pos ++;
+                $color = imagecolorallocatealpha($image, $r, $g, $b, $a);
+                imagesetpixel($image, $x, $y, $color);
+            }
+        }
+        imagesavealpha($image, true);
+        return $image;
+    }
+
+    /**
+     * @param Player $player
+     * @param string $resource
+     */
+    public function convertImagemerge(Player $player, string $resource): void{
+        $playerImage = imagecreatefrompng($this->plugin->getDataFolder() . "skins" . DIRECTORY_SEPARATOR . $player->getLowerCaseName() . ".png");
+        $modelImage  = imagecreatefrompng($this->plugin->getDataFolder() . "images" . DIRECTORY_SEPARATOR . $resource . ".png");
+        [$width, $height] = getimagesize($this->plugin->getDataFolder() . "skins" . DIRECTORY_SEPARATOR . $player->getLowerCaseName() . ".png");
+        imagecopymerge($playerImage, $modelImage, 56, 16, 0, 0, $width, $height, 100);
+        imagesavealpha($playerImage, true);
+        imagepng($playerImage, $this->plugin->getDataFolder() . "images" . DIRECTORY_SEPARATOR . $player->getLowerCaseName() . ".png");
+
+        imagedestroy($playerImage);
+        imagedestroy($modelImage);
+    }
+
+    /**
+     * @param Player $player
+     * @param string $resource
+     */
+    public function sendImageSkin(Player $player, string $resource): void{
+        $path = $this->plugin->getDataFolder() . "images" . DIRECTORY_SEPARATOR . $player->getLowerCaseName() . ".png";
+        $image = imagecreatefrompng($path);
+        $skinBytes = "";
+        $size = (int) getimagesize($path) [1];
+
+        for ($y = 0; $y < $size; $y ++) {
+            for ($x = 0; $x < 64; $x ++) {
+                $colorat = imagecolorat($image, $x, $y);
+                $a = ((~((int) ($colorat >> 24))) << 1) & 0xff;
+                $r = ($colorat >> 16) & 0xff;
+                $g = ($colorat >> 8) & 0xff;
+                $b = $colorat & 0xff;
+                $skinBytes .= chr($r) . chr($g) . chr($b) . chr($a);
+            }
+        }
+        imagedestroy($image);
+        $skin = new Skin($player->getSkin()->getSkinId(), $skinBytes, "", "geometry." . $resource, file_get_contents($this->plugin->getDataFolder() . "models" . DIRECTORY_SEPARATOR . $resource . ".json"));
+        $this->broadcastChangeSkin($player, $skin);
+    }
+
+    /**
+     * @param Player $player
+     * @param Skin $skin
+     */
+    public function broadcastChangeSkin(Player $player, Skin $skin): void{
+        $player->setSkin($skin);
+        foreach (Server::getInstance()->getOnlinePlayers() as $players) {
+            $player->sendSkin([$players, $player]);
+        }
+    }
+
+    /**
+     * @param Player $player
+     */
+    public function deleteSkinImage(Player $player): void{
+        if (file_exists($this->plugin->getDataFolder() . "skins" . DIRECTORY_SEPARATOR . $player->getLowerCaseName() . ".png")) {
+            unlink($this->plugin->getDataFolder() . "skins" . DIRECTORY_SEPARATOR . $player->getLowerCaseName() . ".png");
+        }
+        if (file_exists($this->plugin->getDataFolder() . "images" . DIRECTORY_SEPARATOR . $player->getLowerCaseName() . ".png")) {
+            unlink($this->plugin->getDataFolder() . "images" . DIRECTORY_SEPARATOR . $player->getLowerCaseName() . ".png");
+        }
+        if (isset(self::$skins[$player->getLowerCaseName()])) {
+            unset(self::$skins[$player->getLowerCaseName()]);
+        }
+    }
+
+    /**
+     * @param Player $player
+     */
+    public function callbackSkin(Player $player): void{
+        if (($skin = $this->getPlayerSkin($player)) instanceof Skin) {
+            $this->broadcastChangeSkin($player, $skin);
+        }
+    }
+}

src/skh6075/s3ditemtools/skin/SkinFactory.php

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+<?php
+
+namespace skh6075\s3ditemtools\skin;
+
+use skh6075\s3ditemtools\S3DItemToolS;
+use function array_diff;
+use function explode;
+use function file_exists;
+use const DIRECTORY_SEPARATOR;
+
+final class SkinFactory{
+
+    /** @var ?SkinFactory */
+    private static $instance = null;
+    /** @var S3DItemToolS */
+    protected $plugin;
+    /** @var SkinReflection[] */
+    private static $reflections = [];
+
+
+    public static function getInstance(): ?SkinFactory{
+        if (self::$instance === null) {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+
+    public function __construct() {
+        $this->plugin = S3DItemToolS::getInstance();
+    }
+
+    public function init(): void{
+        foreach (array_diff(scandir($this->plugin->getDataFolder() . "models" . DIRECTORY_SEPARATOR), ['.', '..']) as $value) {
+            if (!isset(explode(".", $value)[0]) || explode(".", $value)[1] !== "json" || !file_exists($this->plugin->getDataFolder() . "images" . DIRECTORY_SEPARATOR . $value . ".png")) {
+                continue;
+            }
+            self::$reflections[explode(".", $value) [0]] = new SkinReflection(explode(".", $value) [1]);
+        }
+    }
+
+    /**
+     * @param string $name
+     *
+     * @return ?SkinReflection
+     */
+    public function getSkinReflection(string $name): ?SkinReflection{
+        return self::$reflections[$name] ?? null;
+    }
+}

src/skh6075/s3ditemtools/skin/SkinMap.php

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+<?php
+
+namespace skh6075\s3ditemtools\skin;
+
+final class SkinMap{
+
+    /** @var int[] */
+    public const SKIN_WIDTH_SIZE = [
+        64 * 32 * 4   => 64,
+        64 * 64 * 4   => 64,
+        128 * 128 * 4 => 128
+    ];
+
+    /** @var int[] */
+    public const SKIN_HEIGHT_SIZE = [
+        64 * 32 * 4   => 32,
+        64 * 64 * 4   => 64,
+        128 * 128 * 4 => 128
+    ];
+}

src/skh6075/s3ditemtools/skin/SkinReflection.php

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+<?php
+
+namespace skh6075\s3ditemtools\skin;
+
+use pocketmine\Player;
+
+class SkinReflection{
+
+    /** @var string */
+    protected $name;
+
+
+    public function __construct(string $name) {
+        $this->name = $name;
+    }
+
+    public function getName(): string{
+        return $this->name;
+    }
+
+    /**
+     * @param Player $player
+     */
+    public function sendSkinImage(Player $player): void{
+        PlayerSkin::getInstance()->convertImagemerge($player, $this->name);
+        PlayerSkin::getInstance()->sendImageSkin($player, $this->name);
+    }
+}