Support ping bedrock

src/commonMain/kotlin/cn/rtast/mcping/bedrock/ping_bedrock.kt

@@ -0,0 +1,34 @@
+/*
+ * Copyright © 2026 RTAkland
+ * Author: RTAkland
+ * Date: 2026/9/3
+ */
+
+
+package cn.rtast.mcping.bedrock
+
+import cn.rtast.mcping.PingResponse
+import cn.rtast.mcping.platform.PingContext
+import cn.rtast.mcping.platform.UdpSocket
+import cn.rtast.mcping.platform.wrap
+import kotlin.time.Clock
+
+internal fun pingBedrockServer(host: String, port: Int, context: PingContext): PingResponse {
+    val socket = UdpSocket(host, port, context)
+    return try {
+        val sendTime = Clock.System.now().toEpochMilliseconds()
+        val packet = BedrockRequestPacket(sendTime)
+        val responseBytes = socket.sendPacket(packet)
+        val receiveTime = Clock.System.now().toEpochMilliseconds()
+        val buf = responseBytes.wrap()
+        buf.readByte()  // packet id
+        buf.readLong() // time
+        buf.readLong()  // server guid
+        buf.readBytes(16)  // magic refer to `rakNetMagic`
+        val payloadLength = buf.readShort()
+        val payload = buf.readBytes(payloadLength.toInt())
+        PingResponse(payload.decodeToString(), (receiveTime - sendTime).toInt())
+    } finally {
+        socket.close()
+    }
+}