419 lines
13 KiB
Rust
419 lines
13 KiB
Rust
// Copyright 2015 Matthew Collins
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
use protocol::{self, mojang, packet};
|
|
use world;
|
|
use world::block;
|
|
use rand::{self, Rng};
|
|
use std::sync::{Arc, RwLock, Mutex};
|
|
use std::sync::mpsc;
|
|
use std::thread;
|
|
use std::collections::HashMap;
|
|
use resources;
|
|
use openssl;
|
|
use console;
|
|
use render;
|
|
use auth;
|
|
use cgmath::{self, Vector};
|
|
use sdl2::keyboard::Keycode;
|
|
|
|
pub struct Server {
|
|
conn: Option<protocol::Conn>,
|
|
read_queue: Option<mpsc::Receiver<Result<packet::Packet, protocol::Error>>>,
|
|
|
|
pub world: world::World,
|
|
world_age: i64,
|
|
world_time: f64,
|
|
world_time_target: f64,
|
|
tick_time: bool,
|
|
|
|
resources: Arc<RwLock<resources::Manager>>,
|
|
console: Arc<Mutex<console::Console>>,
|
|
version: usize,
|
|
|
|
pub position: cgmath::Vector3<f64>,
|
|
pub yaw: f64,
|
|
pub pitch: f64,
|
|
|
|
pressed_keys: HashMap<Keycode, bool>,
|
|
|
|
tick_timer: f64,
|
|
}
|
|
|
|
macro_rules! handle_packet {
|
|
($s:ident $pck:ident {
|
|
$($packet:ident => $func:ident,)*
|
|
}) => (
|
|
match $pck {
|
|
$(
|
|
protocol::packet::Packet::$packet(val) => $s.$func(val),
|
|
)*
|
|
_ => {},
|
|
}
|
|
)
|
|
}
|
|
|
|
impl Server {
|
|
|
|
pub fn connect(resources: Arc<RwLock<resources::Manager>>, console: Arc<Mutex<console::Console>>, address: &str) -> Result<Server, protocol::Error> {
|
|
let mut conn = try!(protocol::Conn::new(address));
|
|
|
|
let profile = {
|
|
let console = console.lock().unwrap();
|
|
mojang::Profile {
|
|
username: console.get(auth::CL_USERNAME).clone(),
|
|
id: console.get(auth::CL_UUID).clone(),
|
|
access_token: console.get(auth::AUTH_TOKEN).clone(),
|
|
}
|
|
};
|
|
|
|
let host = conn.host.clone();
|
|
let port = conn.port;
|
|
try!(conn.write_packet(protocol::packet::handshake::serverbound::Handshake {
|
|
protocol_version: protocol::VarInt(protocol::SUPPORTED_PROTOCOL),
|
|
host: host,
|
|
port: port,
|
|
next: protocol::VarInt(2),
|
|
}));
|
|
conn.state = protocol::State::Login;
|
|
try!(conn.write_packet(protocol::packet::login::serverbound::LoginStart {
|
|
username: profile.username.clone(),
|
|
}));
|
|
|
|
let packet = match try!(conn.read_packet()) {
|
|
protocol::packet::Packet::EncryptionRequest(val) => val,
|
|
protocol::packet::Packet::LoginDisconnect(val) => return Err(protocol::Error::Disconnect(val.reason)),
|
|
val => return Err(protocol::Error::Err(format!("Wrong packet: {:?}", val))),
|
|
};
|
|
|
|
let mut key = openssl::PublicKey::new(&packet.public_key.data);
|
|
let shared = openssl::gen_random(16);
|
|
|
|
let shared_e = key.encrypt(&shared);
|
|
let token_e = key.encrypt(&packet.verify_token.data);
|
|
|
|
try!(profile.join_server(&packet.server_id, &shared, &packet.public_key.data));
|
|
|
|
try!(conn.write_packet(protocol::packet::login::serverbound::EncryptionResponse {
|
|
shared_secret: protocol::LenPrefixedBytes::new(shared_e),
|
|
verify_token: protocol::LenPrefixedBytes::new(token_e),
|
|
}));
|
|
|
|
let mut read = conn.clone();
|
|
let mut write = conn.clone();
|
|
|
|
read.enable_encyption(&shared, true);
|
|
write.enable_encyption(&shared, false);
|
|
|
|
loop {
|
|
match try!(read.read_packet()) {
|
|
protocol::packet::Packet::SetInitialCompression(val) => {
|
|
read.set_compresssion(val.threshold.0, true);
|
|
write.set_compresssion(val.threshold.0, false);
|
|
}
|
|
protocol::packet::Packet::LoginSuccess(val) => {
|
|
debug!("Login: {} {}", val.username, val.uuid);
|
|
read.state = protocol::State::Play;
|
|
write.state = protocol::State::Play;
|
|
break;
|
|
}
|
|
protocol::packet::Packet::LoginDisconnect(val) => return Err(protocol::Error::Disconnect(val.reason)),
|
|
val => return Err(protocol::Error::Err(format!("Wrong packet: {:?}", val))),
|
|
}
|
|
}
|
|
|
|
let (tx, rx) = mpsc::channel();
|
|
thread::spawn(move || {
|
|
loop {
|
|
let pck = read.read_packet();
|
|
let was_error = pck.is_err();
|
|
if let Err(_) = tx.send(pck) {
|
|
return;
|
|
}
|
|
if was_error {
|
|
return;
|
|
}
|
|
}
|
|
});
|
|
|
|
let version = resources.read().unwrap().version();
|
|
Ok(Server {
|
|
conn: Some(write),
|
|
read_queue: Some(rx),
|
|
|
|
world: world::World::new(),
|
|
world_age: 0,
|
|
world_time: 0.0,
|
|
world_time_target: 0.0,
|
|
tick_time: true,
|
|
|
|
resources: resources,
|
|
console: console,
|
|
version: version,
|
|
|
|
pressed_keys: HashMap::new(),
|
|
|
|
position: cgmath::Vector3::zero(),
|
|
yaw: 0.0,
|
|
pitch: 0.0,
|
|
|
|
tick_timer: 0.0,
|
|
})
|
|
}
|
|
|
|
pub fn dummy_server(resources: Arc<RwLock<resources::Manager>>, console: Arc<Mutex<console::Console>>) -> Server {
|
|
let mut world = world::World::new();
|
|
let mut rng = rand::thread_rng();
|
|
for x in -7*16 .. 7*16 {
|
|
for z in -7*16 .. 7*16 {
|
|
let h = rng.gen_range(3, 10);
|
|
for y in 0 .. h {
|
|
world.set_block(x, y, z, block::Dirt{});
|
|
}
|
|
}
|
|
}
|
|
let version = resources.read().unwrap().version();
|
|
Server {
|
|
conn: None,
|
|
read_queue: None,
|
|
|
|
world: world,
|
|
world_age: 0,
|
|
world_time: 0.0,
|
|
world_time_target: 0.0,
|
|
tick_time: true,
|
|
|
|
version: version,
|
|
resources: resources,
|
|
console: console,
|
|
|
|
pressed_keys: HashMap::new(),
|
|
|
|
position: cgmath::Vector3::new(0.5, 13.2, 0.5),
|
|
yaw: 0.0,
|
|
pitch: 0.0,
|
|
|
|
tick_timer: 0.0,
|
|
}
|
|
}
|
|
|
|
pub fn is_connected(&self) -> bool {
|
|
self.conn.is_some()
|
|
}
|
|
|
|
pub fn tick(&mut self, renderer: &mut render::Renderer, delta: f64) {
|
|
let version = self.resources.read().unwrap().version();
|
|
if version != self.version {
|
|
self.version = version;
|
|
self.world.flag_dirty_all();
|
|
}
|
|
|
|
if let Some(rx) = self.read_queue.take() {
|
|
while let Ok(pck) = rx.try_recv() {
|
|
match pck {
|
|
Ok(pck) => handle_packet!{
|
|
self pck {
|
|
KeepAliveClientbound => on_keep_alive,
|
|
ChunkData => on_chunk_data,
|
|
ChunkUnload => on_chunk_unload,
|
|
TeleportPlayer => on_teleport,
|
|
TimeUpdate => on_time_update,
|
|
}
|
|
},
|
|
Err(err) => panic!("Err: {:?}", err),
|
|
}
|
|
}
|
|
self.read_queue = Some(rx);
|
|
}
|
|
|
|
let (forward, yaw) = self.calculate_movement();
|
|
|
|
if self.world.is_chunk_loaded((self.position.x as i32) >> 4, (self.position.z as i32) >> 4) {
|
|
let mut speed = 4.317 / 60.0;
|
|
if self.is_key_pressed(Keycode::LShift) {
|
|
speed = 5.612 / 60.0;
|
|
}
|
|
// TODO: only do this for flying
|
|
speed *= 2.5;
|
|
|
|
if self.is_key_pressed(Keycode::Space) {
|
|
self.position.y += speed * delta;
|
|
}
|
|
if self.is_key_pressed(Keycode::LCtrl) {
|
|
self.position.y -= speed * delta;
|
|
}
|
|
self.position.x += forward * yaw.cos() * delta * speed;
|
|
self.position.z -= forward * yaw.sin() * delta * speed;
|
|
}
|
|
|
|
self.tick_timer += delta;
|
|
while self.tick_timer >= 3.0 && self.is_connected() {
|
|
self.minecraft_tick();
|
|
self.tick_timer -= 3.0;
|
|
}
|
|
|
|
self.update_time(renderer, delta);
|
|
|
|
// Copy to camera
|
|
renderer.camera.pos = cgmath::Point::from_vec(self.position + cgmath::Vector3::new(0.0, 1.8, 0.0));
|
|
renderer.camera.yaw = self.yaw;
|
|
renderer.camera.pitch = self.pitch;
|
|
}
|
|
|
|
fn update_time(&mut self, renderer: &mut render::Renderer, delta: f64) {
|
|
if self.tick_time {
|
|
self.world_time_target += delta / 3.0;
|
|
self.world_time_target = (24000.0 + self.world_time_target) % 24000.0;
|
|
let mut diff = self.world_time_target - self.world_time;
|
|
if diff < -12000.0 {
|
|
diff = 24000.0 + diff
|
|
} else if diff > 12000.0 {
|
|
diff = diff - 24000.0
|
|
}
|
|
self.world_time += diff * (1.5 / 60.0) * delta;
|
|
self.world_time = (24000.0 + self.world_time) % 24000.0;
|
|
} else {
|
|
self.world_time = self.world_time_target;
|
|
}
|
|
renderer.sky_offset = self.calculate_sky_offset();
|
|
}
|
|
|
|
fn calculate_sky_offset(&self) -> f32 {
|
|
use std::f32::consts::PI;
|
|
let mut offset = ((1.0 + self.world_time as f32) / 24000.0) - 0.25;
|
|
if offset < 0.0 {
|
|
offset += 1.0;
|
|
} else if offset > 1.0 {
|
|
offset -= 1.0;
|
|
}
|
|
|
|
let prev_offset = offset;
|
|
offset = 1.0 - (((offset * PI).cos() + 1.0) / 2.0);
|
|
offset = prev_offset + (offset - prev_offset) / 3.0;
|
|
|
|
offset = 1.0 - ((offset * PI * 2.0).cos() * 2.0 + 0.2);
|
|
if offset > 1.0 {
|
|
offset = 1.0;
|
|
} else if offset < 0.0 {
|
|
offset = 0.0;
|
|
}
|
|
offset = 1.0 - offset;
|
|
offset * 0.8 + 0.2
|
|
}
|
|
|
|
fn calculate_movement(&self) -> (f64, f64) {
|
|
use std::f64::consts::PI;
|
|
let mut forward = 0.0f64;
|
|
let mut yaw = self.yaw - (PI/2.0);
|
|
if self.is_key_pressed(Keycode::W) || self.is_key_pressed(Keycode::S) {
|
|
forward = 1.0;
|
|
if self.is_key_pressed(Keycode::S) {
|
|
yaw += PI;
|
|
}
|
|
}
|
|
let mut change = 0.0;
|
|
if self.is_key_pressed(Keycode::A) {
|
|
change = (PI / 2.0) / (forward.abs() + 1.0);
|
|
}
|
|
if self.is_key_pressed(Keycode::D) {
|
|
change = -(PI / 2.0) / (forward.abs() + 1.0);
|
|
}
|
|
if self.is_key_pressed(Keycode::A) || self.is_key_pressed(Keycode::D) {
|
|
forward = 1.0;
|
|
}
|
|
if self.is_key_pressed(Keycode::S) {
|
|
yaw -= change;
|
|
} else {
|
|
yaw += change;
|
|
}
|
|
|
|
(forward, yaw)
|
|
}
|
|
|
|
pub fn minecraft_tick(&mut self) {
|
|
|
|
// Sync our position to the server
|
|
let packet = packet::play::serverbound::PlayerPositionLook {
|
|
x: self.position.x,
|
|
y: self.position.y,
|
|
z: self.position.z,
|
|
yaw: self.yaw as f32,
|
|
pitch: self.pitch as f32,
|
|
on_ground: false,
|
|
};
|
|
self.write_packet(packet);
|
|
}
|
|
|
|
pub fn key_press(&mut self, down: bool, key: Keycode) {
|
|
self.pressed_keys.insert(key, down);
|
|
}
|
|
|
|
fn is_key_pressed(&self, key: Keycode) -> bool {
|
|
self.pressed_keys.get(&key).map(|v| *v).unwrap_or(false)
|
|
}
|
|
|
|
pub fn write_packet<T: protocol::PacketType>(&mut self, p: T) {
|
|
self.conn.as_mut().unwrap().write_packet(p).unwrap(); // TODO handle errors
|
|
}
|
|
|
|
fn on_keep_alive(&mut self, keep_alive: packet::play::clientbound::KeepAliveClientbound) {
|
|
self.write_packet(packet::play::serverbound::KeepAliveServerbound {
|
|
id: keep_alive.id,
|
|
});
|
|
}
|
|
|
|
fn on_time_update(&mut self, time_update: packet::play::clientbound::TimeUpdate) {
|
|
self.world_age = time_update.time_of_day;
|
|
self.world_time_target = (time_update.time_of_day % 24000) as f64;
|
|
if self.world_time_target < 0.0 {
|
|
self.world_time_target = -self.world_time_target;
|
|
self.tick_time = false;
|
|
} else {
|
|
self.tick_time = true;
|
|
}
|
|
}
|
|
|
|
fn on_teleport(&mut self, teleport: packet::play::clientbound::TeleportPlayer) {
|
|
// TODO: relative teleports
|
|
self.position.x = teleport.x;
|
|
self.position.y = teleport.y;
|
|
self.position.z = teleport.z;
|
|
self.yaw = teleport.yaw as f64;
|
|
self.pitch = teleport.pitch as f64;
|
|
|
|
self.write_packet(packet::play::serverbound::PlayerPositionLook {
|
|
x: teleport.x,
|
|
y: teleport.y,
|
|
z: teleport.z,
|
|
yaw: teleport.yaw,
|
|
pitch: teleport.pitch,
|
|
on_ground: false,
|
|
});
|
|
}
|
|
|
|
fn on_chunk_data(&mut self, chunk_data: packet::play::clientbound::ChunkData) {
|
|
self.world.load_chunk(
|
|
chunk_data.chunk_x,
|
|
chunk_data.chunk_z,
|
|
chunk_data.new,
|
|
chunk_data.bitmask.0 as u16,
|
|
chunk_data.data.data
|
|
).unwrap();
|
|
}
|
|
|
|
fn on_chunk_unload(&mut self, chunk_unload: packet::play::clientbound::ChunkUnload) {
|
|
self.world.unload_chunk(chunk_unload.x, chunk_unload.z);
|
|
}
|
|
}
|