From e19852c958838688481422ed3ddd953d2dcd4309 Mon Sep 17 00:00:00 2001
From: ubq323 <ubq323@ubq323.website>
Date: Mon, 15 Apr 2024 17:13:08 +0100
Subject: version check

---
 server/main.ha | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

(limited to 'server/main.ha')

diff --git a/server/main.ha b/server/main.ha
index 71bb71b..cf8e720 100644
--- a/server/main.ha
+++ b/server/main.ha
@@ -17,6 +17,7 @@ use unix::poll;
 use drawing;
 use drawing::{pos,CHUNKSIZE};
 use packet_reader;
+use packet_reader::{VERSION};
 
 
 def PORT: u16 = 41460;
@@ -130,7 +131,6 @@ fn loop(state: *server_state, timeout: time::duration) void = {
 	for (let pollfd_idx = 1z: size; pollfd_idx < len(pollfds); pollfd_idx += 1) {
 		const conn_idx = pollfd_idx - 1;
 		if (state.connections[conn_idx].should_delete) continue;
-		fmt::printfln("checking conn {} with pollfd {}",conn_idx, pollfd_idx)!;
 		if (0 != pollfds[conn_idx+1].revents & poll::event::POLLIN) {
 			read_from_connection(state, conn_idx);
 		};
@@ -153,7 +153,10 @@ fn perform_deletions(state: *server_state) void = {
 };
 
 fn greet_connection(state: *server_state, conn_idx: size)
-(void|io::error) = void;
+(void|io::error) = {
+	const conn = state.connections[conn_idx];
+	io::write(conn.sock, [VERSION])?;
+};
 
 
 
@@ -195,8 +198,8 @@ fn handle_packet(
 	match (packet) {
 	case let op: packet_reader::packet_drawop =>
 		const opc = op as drawing::op_circle;
-		fmt::printfln("#{}: drawop  ({:+6},{:+6}) r{}",
-			conn_idx,opc.pos.0,opc.pos.1, opc.radius)!;
+		// fmt::printfln("#{}: drawop  ({:+6},{:+6}) r{}",
+			// conn_idx,opc.pos.0,opc.pos.1, opc.radius)!;
 		drawing::perform(state.pictures, opc);
 		for (let other_idx = 0z;
 				other_idx < len(state.connections);
@@ -205,7 +208,7 @@ fn handle_packet(
 			if (other_idx == conn_idx) continue;
 			const other_conn = &state.connections[other_idx];
 			if (other_conn.should_delete) continue;
-			fmt::printfln("\t -> #{}",other_idx)!;
+			// fmt::printfln("\t -> #{}",other_idx)!;
 			match (packet_reader::send(other_conn.sock, packet)) {
 			case void => yield;
 			case let e: io::error =>
@@ -215,8 +218,8 @@ fn handle_packet(
 			};
 		};
 	case let pos: packet_reader::packet_position =>
-		fmt::printfln("pos of #{} is now {},{}",
-			conn_idx, pos.0, pos.1)!;
+		// fmt::printfln("pos of #{} is now {},{}",
+			// conn_idx, pos.0, pos.1)!;
 		state.connections[conn_idx].pos = pos;
 	case let world_pos: packet_reader::packet_reqchunk =>
 		// xxx it is probably easy to ddos the server by sending lots of these
@@ -268,12 +271,15 @@ fn unload_distant_chunks(state: *server_state) void = {
 		const chunk_in_y = floor_div(conn.pos.1, CHUNKSIZE)*CHUNKSIZE;
 		// pic_chunk_pos - player_chunk_pos must be either 0 or 512 or 1024
 		// can't be less than 0 or more than 1024
+		//
+		// -CHUNKSIZE because i suspect this still unloads chunks when
+		// it should't, somehow
 
 		for (let i = 0z; i < n_pics; i += 1) {
 			const pic = &state.pictures[i];
 			const dcx = pic.world_pos.0 - chunk_in_x;
 			const dcy = pic.world_pos.1 - chunk_in_y;
-			if (0 <= dcx && dcx <= 2*CHUNKSIZE && 0 <= dcy && dcy <= 2*CHUNKSIZE)
+			if (-CHUNKSIZE <= dcx && dcx <= 2*CHUNKSIZE && -CHUNKSIZE <= dcy && dcy <= 2*CHUNKSIZE)
 				should_unload[i] = false;
 		};
 	};
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