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/*
wearechat - generic multiplayer game with voip
Copyright (C) 2025 metamuffin
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, version 3 of the License only.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
use crate::{
audio::Audio,
camera::Camera,
download::Downloader,
interfaces::{InterfaceData, ui_selector},
network::Network,
render::{Renderer, ui::UiEvent},
};
use anyhow::{Context, Result};
use glam::{Vec2, Vec3};
use log::{info, warn};
use std::{net::TcpStream, sync::Arc, time::Instant};
use weareshared::{
packets::{Data, Object, Packet, Resource},
resources::PrefabIndex,
store::ResourceStore,
tree::SceneTree,
};
use winit::event::MouseButton;
pub struct State<'a> {
pub network: Arc<Network>,
pub downloader: Arc<Downloader>,
pub renderer: Renderer<'a>,
pub tree: SceneTree,
pub camera: Camera,
pub input_state: InputState,
pub audio: Audio,
pub prefab_index: Arc<PrefabIndex>,
pub prefab_index_res_loaded: Option<Resource<PrefabIndex>>,
pub prefab_index_res: Option<Resource<PrefabIndex>>,
pub avatar_ob: Option<Object>,
pub last_position_tx: Instant,
}
pub struct InputState {
time: Instant,
pub move_dir: Vec3,
pub mouse_acc: Vec2,
pub cursor_pos: Vec2,
pub ui_events: Vec<UiEvent>,
}
impl<'a> State<'a> {
pub fn new(conn: TcpStream, window: &'a winit::window::Window) -> Result<State<'a>> {
info!("new state");
let downloader = Arc::new(Downloader::new(ResourceStore::new_env()?));
Ok(Self {
audio: Audio::new()?,
camera: Camera::new(),
network: Network::new(conn).into(),
tree: SceneTree::default(),
renderer: Renderer::new(window, downloader.clone())?,
downloader,
input_state: InputState {
time: Instant::now(),
move_dir: Vec3::ZERO,
mouse_acc: Vec2::ZERO,
cursor_pos: Vec2::ZERO,
ui_events: Vec::new(),
},
prefab_index_res: None,
prefab_index_res_loaded: None,
avatar_ob: None,
prefab_index: PrefabIndex::default().into(),
last_position_tx: Instant::now(),
})
}
pub fn draw(&mut self) {
if let Err(e) = self
.renderer
.draw(&self.tree, &self.camera, &mut self.input_state)
{
warn!("draw failed: {e:?}");
}
}
pub fn resize(&mut self, width: u32, height: u32) {
self.renderer.resize(width, height);
self.camera.aspect = width as f32 / height as f32;
}
pub fn click(&mut self, button: MouseButton, down: bool) {
self.input_state
.ui_events
.push(UiEvent::Click(self.input_state.cursor_pos, button, down));
if !down || button != MouseButton::Right {
return;
}
let idata = Arc::new(InterfaceData {
scene_prepare: self.renderer.scene_prepare.clone(),
downloader: self.downloader.clone(),
network: self.network.clone(),
prefab_index: self.prefab_index.clone(),
render_timing: self.renderer.timing_submit.clone(),
adapter_info: self.renderer.adapter_info.clone(),
graphics_config: self.renderer.config_update.clone(),
});
self.renderer
.ui_renderer
.add_surface(self.camera.new_ui_affine(), ui_selector(idata));
}
pub fn update(&mut self) -> Result<()> {
let now = Instant::now();
let dt = (now - self.input_state.time).as_secs_f32();
self.input_state.time = now;
self.camera
.update(self.input_state.move_dir, self.input_state.mouse_acc, dt);
self.input_state.mouse_acc = Vec2::ZERO;
for p in self.network.packet_recv.try_iter() {
self.downloader.packet(&p)?;
self.tree.packet(&p);
match &p {
Packet::PrefabIndex(res) => self.prefab_index_res = Some(res.to_owned()),
Packet::Sound(ob, data) => {
if Some(ob) != self.avatar_ob.as_ref() {
if let Some(obdata) = self.tree.objects.get(ob) {
self.audio
.incoming_packet(ob.0, obdata.pos.into(), data.0.clone())
}
}
}
_ => (),
}
}
self.downloader
.update(&self.network)
.context("downloader state")?;
if self.prefab_index_res != self.prefab_index_res_loaded {
if let Some(res) = &self.prefab_index_res {
if let Some(index) = self.downloader.try_get(res.to_owned())? {
info!("prefab index loaded");
self.prefab_index = index.into();
self.prefab_index_res_loaded = Some(res.to_owned());
}
}
}
if let Some(ob) = self.avatar_ob {
if self.last_position_tx.elapsed().as_secs_f32() > 0.1 {
self.network.packet_send.send(Packet::Position(
ob,
self.camera.position().into(),
self.camera.rotation().into(),
))?;
self.last_position_tx = Instant::now();
}
while let Some(p) = self.audio.pop_output() {
self.network.packet_send.send(Packet::Sound(ob, Data(p)))?;
}
} else if let Some(res) = self.prefab_index.0.get("avatar_test") {
info!("found avatar resource {res}");
let ob = Object::new();
self.network
.packet_send
.send(Packet::Add(ob, res.to_owned()))
.unwrap();
self.avatar_ob = Some(ob)
}
Ok(())
}
}
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