From 3788bc36dd23a290628d14c999270e3fed99a0b7 Mon Sep 17 00:00:00 2001
From: MeexReay <meexreay@gmail.com>
Date: Tue, 6 May 2025 03:22:15 +0300
Subject: [PATCH] infinity world

---
 src/server/mod.rs           |  1 +
 src/server/protocol/play.rs | 41 +++++++++++++++++++++++++++++++------
 2 files changed, 36 insertions(+), 6 deletions(-)

diff --git a/src/server/mod.rs b/src/server/mod.rs
index 6166e8d..19988a5 100644
--- a/src/server/mod.rs
+++ b/src/server/mod.rs
@@ -18,6 +18,7 @@ pub mod protocol;
 #[derive(Debug)]
 pub enum ServerError {
 	UnexpectedPacket(u8),    // Неожиданный пакет
+	WrongPacket,             // Пакет поломан, неверные данные
 	Protocol(ProtocolError), // Ошибка в протоколе при работе с rust_mc_proto
 	ConnectionClosed, // Соединение закрыто, единственная ошибка которая не логируется у handle_connection
 	SerTextComponent, // Ошибка при сериализации текст-компонента
diff --git a/src/server/protocol/play.rs b/src/server/protocol/play.rs
index f3d6217..8e4cc33 100644
--- a/src/server/protocol/play.rs
+++ b/src/server/protocol/play.rs
@@ -231,7 +231,7 @@ pub fn send_keep_alive(client: Arc<ClientContext>) -> Result<(), ServerError> {
 	let timestamp2 = packet.read_long()?;
 	if timestamp2 != timestamp {
 		// Послать клиента нахуй
-		Err(ServerError::UnexpectedPacket(serverbound::play::KEEP_ALIVE))
+		Err(ServerError::WrongPacket)
 	} else {
 		Ok(())
 	}
@@ -248,6 +248,24 @@ pub fn send_system_message(
 	client.write_packet(&packet)
 }
 
+pub fn send_example_chunks_in_distance(
+	client: Arc<ClientContext>,
+	chunks: &mut Vec<(i32, i32)>,
+	distance: i32,
+	center: (i32, i32),
+) -> Result<(), ServerError> {
+	for x in -distance + center.0..=distance + center.0 {
+		for z in -distance + center.1..=distance + center.1 {
+			if !chunks.contains(&(x, z)) {
+				send_example_chunk(client.clone(), x as i32, z as i32)?;
+				chunks.push((x, z));
+			}
+		}
+	}
+
+	Ok(())
+}
+
 // Отдельная функция для работы с самой игрой
 pub fn handle_play_state(
 	client: Arc<ClientContext>, // Контекст клиента
@@ -266,11 +284,11 @@ pub fn handle_play_state(
 	send_game_event(client.clone(), 13, 0.0)?; // 13 - Start waiting for level chunks
 	set_center_chunk(client.clone(), 0, 0)?;
 
-	for x in -1..=1 {
-		for z in -1..=1 {
-			send_example_chunk(client.clone(), x, z)?;
-		}
-	}
+	let mut chunks = Vec::new();
+
+	let view_distance = client.client_info().unwrap().view_distance as i32;
+
+	send_example_chunks_in_distance(client.clone(), &mut chunks, view_distance, (0, 0))?;
 
 	thread::spawn({
 		let client = client.clone();
@@ -328,6 +346,17 @@ pub fn handle_play_state(
 			// 1 sec timer
 			let (x, y, z) = client.position();
 
+			let (chunk_x, chunk_z) = ((x / 16.0) as i64, (z / 16.0) as i64);
+			let (chunk_x, chunk_z) = (chunk_x as i32, chunk_z as i32);
+
+			set_center_chunk(client.clone(), chunk_x, chunk_z)?;
+			send_example_chunks_in_distance(
+				client.clone(),
+				&mut chunks,
+				view_distance,
+				(chunk_x, chunk_z),
+			)?;
+
 			send_system_message(
 				client.clone(),
 				TextComponent::rainbow(format!("Pos: {} {} {}", x as i64, y as i64, z as i64)),