From 3151f0b6f261ceff3802a7b6da6b3b2d10c3a4fa Mon Sep 17 00:00:00 2001
From: p2r3 <p2r3@p2r3.com>
Date: Sun, 31 Aug 2025 01:56:47 +0300
Subject: [PATCH] add a way to restore world data over the network

---
 src/main.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/main.c b/src/main.c
index d3f9bba..bc8c659 100644
--- a/src/main.c
+++ b/src/main.c
@@ -572,6 +572,24 @@ int main () {
       continue;
     }
 
+    // Received FEED packet, load world data from socket and disconnect
+    if (recv_buffer[0] == 0xFE && recv_buffer[1] == 0xED && getClientState(client_fd) == STATE_NONE) {
+      // Consume 0xFEED bytes (previous read was just a peek)
+      recv_all(client_fd, recv_buffer, 2, false);
+      // Write full buffers straight into memory
+      recv_all(client_fd, block_changes, sizeof(block_changes), false);
+      recv_all(client_fd, player_data, sizeof(player_data), false);
+      // Recover block_changes_count
+      for (int i = 0; i < MAX_BLOCK_CHANGES; i ++) {
+        if (block_changes[i].block == 0xFF) continue;
+        if (block_changes[i].block == B_chest) i += 14;
+        if (i >= block_changes_count) block_changes_count = i + 1;
+      }
+      // Kick the client
+      disconnectClient(&clients[client_index], 7);
+      continue;
+    }
+
     // Read packet length
     int length = readVarInt(client_fd);
     if (length == VARNUM_ERROR) {