Split up Socket and Rcon classes to be engine specific extensions.

SourceQuery/Socket/SourceSocket.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace xPaw\SourceQuery\Socket;
+
+use xPaw\SourceQuery\Buffer;
+use xPaw\SourceQuery\Exception\InvalidPacketException;
+
+final class SourceSocket extends AbstractSocket
+{
+    /**
+     * @return int
+     */
+    public function getType(): int
+    {
+        return SocketType::SOURCE;
+    }
+
+    /**
+     * @param Buffer $buffer
+     * @param int $count
+     * @param int $number
+     * @param bool $isCompressed
+     * @param int|null $checksum
+     *
+     * @throws InvalidPacketException
+     */
+    protected function readInternalPacketData(
+        Buffer $buffer,
+        int &$count,
+        int &$number,
+        bool &$isCompressed,
+        ?int &$checksum
+    ): void {
+        $count = $buffer->getByte();
+        $number = $buffer->getByte() + 1;
+
+        if ($isCompressed) {
+            $buffer->getLong(); // Split size
+
+            $checksum = $buffer->getUnsignedLong();
+        } else {
+            $buffer->getShort(); // Split size
+        }
+    }
+}