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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::{
camera::Camera, download::Downloader, network::Network, renderer::Renderer, ui::UiSurface,
};
use anyhow::{Context, Result};
use egui::ViewportId;
use glam::{Vec2, Vec3};
use log::{info, warn};
use rand::random;
use std::{net::TcpStream, sync::Arc, time::Instant};
use weareshared::{store::ResourceStore, tree::SceneTree};
use winit::event::MouseButton;
pub struct State<'a> {
pub network: Network,
pub downloader: Downloader,
pub renderer: Renderer<'a>,
pub tree: SceneTree,
pub camera: Camera,
pub delta: DeltaState,
}
pub struct DeltaState {
time: Instant,
pub move_dir: Vec3,
pub mouse_acc: Vec2,
pub cursor_pos: Vec2,
}
impl<'a> State<'a> {
pub fn new(conn: TcpStream, window: &'a winit::window::Window) -> Result<State<'a>> {
info!("new state");
Ok(Self {
camera: Camera::new(),
network: Network::new(conn),
tree: SceneTree::default(),
renderer: Renderer::new(window)?,
downloader: Downloader::new(ResourceStore::new_memory()),
delta: DeltaState {
time: Instant::now(),
move_dir: Vec3::ZERO,
mouse_acc: Vec2::ZERO,
cursor_pos: Vec2::ZERO,
},
})
}
pub fn draw(&mut self) {
if let Err(e) = self.renderer.draw(&self.tree, &self.camera) {
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) {
if !down || button != MouseButton::Right {
return;
}
self.renderer.ui_renderer.surfaces.insert(
ViewportId::from_hash_of(random::<u128>()),
UiSurface {
transform: self.camera.new_ui_affine(),
content: Arc::new(|ctx| {
egui::Window::new("Funny window")
.default_open(true)
.show(ctx, |ui| {
ui.label("world space ui actually kinda works now");
ui.label("Does input work?");
ui.button("Yes").clicked();
});
}),
},
);
}
pub fn update(&mut self) -> Result<()> {
let now = Instant::now();
let dt = (now - self.delta.time).as_secs_f32();
self.delta.time = now;
self.camera
.update(self.delta.move_dir, self.delta.mouse_acc, dt);
self.delta.mouse_acc = Vec2::ZERO;
for p in self.network.packet_recv.try_iter() {
self.downloader.packet(&p)?;
self.tree.packet(&p);
}
self.downloader
.update(&mut self.network)
.context("downloader state")?;
self.renderer
.scene_prepare
.update(&mut self.downloader)
.context("scene preparation")?;
Ok(())
}
}
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