Sends chunk when player goes away by a certain threshold distance.

Author: Sweattypalms

src/net/packets/incoming/set_player_pos_and_rotate.rs

@@ -1,5 +1,5 @@
 use crate::net::packets::{ConnectionId, IncomingPacket};
-use crate::net::systems::chunk_sender::{ChunkSender, CHUNK_RADIUS};
+use crate::net::systems::chunk_sender::{ChunkSender};
 use crate::state::GlobalState;
 use crate::utils::components::rotation::Rotation;
 use crate::utils::encoding::position::Position;
@@ -27,7 +27,8 @@ impl IncomingPacket for SetPlayerPosAndRotate {
         let mut position = component_storage.get_mut::<Position>(my_entity_id).await?;
         let mut rotation = component_storage.get_mut::<Rotation>(my_entity_id).await?;
 
-        let old_chunk_pos = (position.x >> 4, position.z >> 4);
+        ChunkSender::send_chunks_to_player_if_needed(state.clone(), my_entity_id, (position.x >> 4, position.z >> 4)).await?;
+        /*let old_chunk_pos = (position.x >> 4, position.z >> 4);
         let new_chunk_pos = (self.x as i32 >> 4, self.z as i32 >> 4);
 
         if old_chunk_pos != new_chunk_pos {
@@ -40,7 +41,7 @@ impl IncomingPacket for SetPlayerPosAndRotate {
                 }
             );
         }
-
+*/
         *position = Position {
             x: self.x as i32,
             y: self.y as i16,

src/net/packets/incoming/set_player_position.rs

@@ -1,9 +1,9 @@
-use tracing::{debug, trace};
+use tracing::{trace};
 
 use ferrumc_macros::{packet, NetDecode};
 
 use crate::net::packets::{ConnectionId, IncomingPacket};
-use crate::net::systems::chunk_sender::{ChunkSender, CHUNK_RADIUS};
+use crate::net::systems::chunk_sender::{ChunkSender};
 use crate::state::GlobalState;
 use crate::utils::encoding::position::Position;
 
@@ -34,7 +34,9 @@ impl IncomingPacket for SetPlayerPosition {
 
         let mut position = component_storage.get_mut::<Position>(my_entity_id).await?;
 
-        let old_chunk_pos = (position.x >> 4, position.z >> 4);
+        ChunkSender::send_chunks_to_player_if_needed(state.clone(), my_entity_id, (position.x >> 4, position.z >> 4)).await?;
+
+        /*let old_chunk_pos = (position.x >> 4, position.z >> 4);
         let new_chunk_pos = (self.x as i32 >> 4, self.z as i32 >> 4);
 
         if old_chunk_pos != new_chunk_pos {
@@ -46,7 +48,7 @@ impl IncomingPacket for SetPlayerPosition {
                     Ok::<(), Error>(())
                 }
             );
-        }
+        }*/
 
         *position = Position {
             x: self.x as i32,

src/net/systems/chunk_sender.rs

@@ -9,12 +9,13 @@ use crate::net::packets::outgoing::set_center_chunk::SetCenterChunk;
 use crate::net::systems::System;
 use crate::net::{Connection, ConnectionWrapper};
 use crate::state::GlobalState;
+use crate::utils::components::last_chunk_tx_pos::LastChunkTxPos;
 use crate::utils::components::player::Player;
 use crate::utils::encoding::position::Position;
 use crate::utils::prelude::*;
 use ferrumc_macros::AutoGenName;
 
-pub const CHUNK_RADIUS: i32 = 8;
+pub const CHUNK_RADIUS: i32 = 32;
 const CHUNK_TX_INTERVAL_MS: u64 = 50000;
 
 #[derive(AutoGenName)]
@@ -51,6 +52,39 @@ impl System for ChunkSender {
 }
 
 impl ChunkSender {
+    pub async fn send_chunks_to_player_if_needed(
+        state: GlobalState,
+        entity_id: impl TryInto<usize>,
+        current_pos: (i32, i32),
+    ) -> Result<()> {
+        let entity_id = entity_id.try_into().map_err(|_| Error::ConversionError)?;
+
+        let mut last_chunk_tx_pos = state
+            .world
+            .get_component_storage()
+            .get_mut_or_insert_with::<LastChunkTxPos>(entity_id, Default::default)
+            .await;
+
+        let distance = last_chunk_tx_pos.distance_to(current_pos.0, current_pos.1);
+
+        if distance < (CHUNK_RADIUS as f64 / 4f64) {
+            return Ok(());
+        }
+
+        last_chunk_tx_pos.set_last_chunk_tx_pos(current_pos.0, current_pos.1);
+
+        let state_clone = state.clone();
+        tokio::spawn(
+            async move {
+                ChunkSender::send_chunks_to_player(state_clone, entity_id).await?;
+
+                Ok::<(), Error>(())
+            }
+        );
+
+
+        Ok(())
+    }
     pub async fn send_chunks_to_player(
         state: GlobalState,
         entity_id: impl TryInto<usize>,

src/utils/components/last_chunk_tx_pos.rs

@@ -0,0 +1,21 @@
+use ferrumc_macros::{Component, Constructor, Getter};
+
+#[derive(Debug, Default, Component, Getter, Constructor)]
+pub struct LastChunkTxPos {
+    pub x: i32,
+    pub z: i32,
+}
+
+impl LastChunkTxPos {
+    pub fn set_last_chunk_tx_pos(&mut self, x: i32, z: i32) {
+        self.x = x;
+        self.z = z;
+    }
+
+    pub fn distance_to(&self, x: i32, z: i32) -> f64 {
+        let dx = self.x - x;
+        let dz = self.z - z;
+
+        ((dx * dx + dz * dz) as f64).sqrt()
+    }
+}

src/utils/components/mod.rs

@@ -2,3 +2,4 @@ pub mod grounded;
 pub mod keep_alive;
 pub mod player;
 pub mod rotation;
+pub mod last_chunk_tx_pos;