Bouncing box demo

demo/Cargo.lock

@@ -682,6 +682,17 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "egui-sfml"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2c29f2eb88bc1c2043f5cb807173b643d4241502d97c955880ffc86ca9fb21dc"
+dependencies = [
+ "egui",
+ "glu-sys",
+ "sfml",
+]
+
 [[package]]
 name = "egui-winit"
 version = "0.21.1"
@@ -971,6 +982,15 @@ dependencies = [
  "web-sys",
 ]
 
+[[package]]
+name = "glu-sys"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b96e6aab9cc22fe28d706c0efb380f1825d660a27ccf9a26591fb327905cc3f3"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "glutin"
 version = "0.30.8"
@@ -1191,6 +1211,15 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "link-cplusplus"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ecd207c9c713c34f95a097a5b029ac2ce6010530c7b49d7fea24d977dede04f5"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.3.8"
@@ -1369,6 +1398,15 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "num-traits"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "num_enum"
 version = "0.5.11"
@@ -1736,8 +1774,10 @@ name = "renrs-gui"
 version = "0.1.0"
 dependencies = [
  "eframe",
+ "egui-sfml",
  "env_logger",
  "renrs",
+ "sfml",
 ]
 
 [[package]]
@@ -1831,6 +1871,20 @@ dependencies = [
  "syn 2.0.16",
 ]
 
+[[package]]
+name = "sfml"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc90f712d9a93d8db54e53281dbb6dbb29e443abcc83e185df4bbe60ba6e8311"
+dependencies = [
+ "bitflags",
+ "cc",
+ "link-cplusplus",
+ "num-traits",
+ "once_cell",
+ "widestring",
+]
+
 [[package]]
 name = "sha1"
 version = "0.10.5"
@@ -2384,6 +2438,12 @@ dependencies = [
  "web-sys",
 ]
 
+[[package]]
+name = "widestring"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "653f141f39ec16bba3c5abe400a0c60da7468261cc2cbf36805022876bc721a8"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"

demo/src/main.rs

@@ -1,3 +1,3 @@
 fn main() {
-    renrs_gui::run("demo.rpy".into()).unwrap();
+    renrs_gui::run("demo.rpy".into());
 }

renrs-gui/Cargo.toml

@@ -7,5 +7,7 @@ edition = "2021"
 
 [dependencies]
 eframe = "0.21.3"
+egui-sfml = "0.4.0"
 env_logger = "0.10.0"
 renrs = { path = "../renrs" }
+sfml = "0.20.0"

renrs-gui/src/lib.rs

@@ -3,23 +3,22 @@ use std::thread;
 use std::time::Duration;
 
 use eframe::egui;
-use egui::*;
 use renrs::{State, Command};
 
-pub fn run(file: PathBuf) -> Result<(), eframe::Error> {
+use sfml::{
+    graphics::{Color, RenderTarget, RenderWindow, RectangleShape, Transformable},
+    system::Vector2f,
+    window::{Event, mouse, Key, Style},
+};
+use egui_sfml::SfEgui;
+
+const WIDTH: f32 = 800.0;
+const HEIGHT: f32 = 600.0;
+
+pub fn run(file: PathBuf) {
     env_logger::init();
-    let options = eframe::NativeOptions {
-        initial_window_size: Some(egui::vec2(640.0, 480.0)),
-        resizable: false, // prevent i3 from automatically resizing
-        ..Default::default()
-    };
-    eframe::run_native(
-        "renrs-gui", 
-        options,
-        Box::new(|_cc| Box::new(
-            App::from_state(State::from_file(file))
-        )),
-    )
+    let mut app = App::from_state(State::from_file(file));
+    app.run();
 }
 
 struct App {
@@ -41,13 +40,13 @@ impl App {
         }
     }
 
-    fn next(&mut self, ctx: &Context) {
+    fn next(&mut self) {
         if let Some(Command::Say { name, text }) = self.state.next_command() {
             self.text = match name {
                 Some(name) => format!("{name}: {text}"),
                 None => text,
             };
-            self.start_typing(ctx);
+            self.start_typing();
         }
     }
 
@@ -63,7 +62,7 @@ impl App {
         *self.typing_done.lock().unwrap() = true;
     }
 
-    fn start_typing(&mut self, ctx: &Context) {
+    fn start_typing(&mut self) {
         // Kill previous typing thread if exists
         self.kill_typing();
 
@@ -71,7 +70,6 @@ impl App {
         *self.typing_done.lock().unwrap() = false;
 
         // Set up references to be passed into thread
-        let ctx = ctx.clone();
         let kill = {
             let kill = Arc::new(Mutex::new(false));
             self.typing_kill = Some(kill.clone());
@@ -88,7 +86,6 @@ impl App {
                     break;
                 }
                 *chars.lock().unwrap() = i;
-                ctx.request_repaint();
                 thread::sleep(Duration::from_millis(50));
                 complete = true;
             }
@@ -98,20 +95,44 @@ impl App {
         });
     }
 
-    fn handle_interaction(&mut self, ctx: &Context) {
+    fn handle_interaction(&mut self) {
         if *self.typing_done.lock().unwrap() {
-            self.next(ctx);
+            self.next();
         } else {
             self.interrupt_typing();
         }
     }
-}
 
-impl eframe::App for App {
-    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
+    fn run(&mut self) {
+        let mut window = RenderWindow::new(
+            (WIDTH as u32, HEIGHT as u32),
+            "renrs-gui",
+            Style::CLOSE,
+            &Default::default(),
+        );
+        let mut sfegui = SfEgui::new(&window);
+        window.set_vertical_sync_enabled(true);
+
+        const SIZE: f32 = 64.0;
+        let mut velocity = Vector2f::new(4.0, 4.0);
+        let mut shape = RectangleShape::with_size(Vector2f::new(SIZE, SIZE));
+        shape.set_position(Vector2f::new(SIZE, SIZE));
+
+        while window.is_open() {
+            while let Some(event) = window.poll_event() {
+                match event {
+                    Event::Closed | Event::KeyPressed { code: Key::Escape, .. } => return,
+                    Event::MouseButtonPressed { button: mouse::Button::Left, .. } | Event::KeyPressed { code: Key::Space, .. } => self.handle_interaction(),
+                    _ => {}
+                }
+            }
+
+            {
+                use egui::*;
+                sfegui
+                    .do_frame(|ctx| {
                         egui::CentralPanel::default()
                             .frame(Frame {
-                fill: Color32::BLACK,
                                 inner_margin: Margin::same(32.0),
                                 ..Default::default()
                             })
@@ -120,9 +141,26 @@ impl eframe::App for App {
                                     i.key_pressed(Key::Space)
                                     || i.pointer.button_clicked(PointerButton::Primary)
                                 ) {
-                    self.handle_interaction(ctx);
+                                    self.handle_interaction();
                                 }
                                 ui.with_layout(egui::Layout::left_to_right(Align::Max), |ui| ui.heading(&self.text[0..*self.chars.lock().unwrap()]));
                             });
+                    }).unwrap();
+            }
+
+            let Vector2f { x, y } = shape.position();
+            if x >= WIDTH - SIZE || x < 0.0 {
+                velocity.x *= -1.0;
+            }
+            if y >= HEIGHT - SIZE || y < 0.0 {
+                velocity.y *= -1.0;
+            }
+            shape.set_position(Vector2f::new(x + velocity.x, y + velocity.y));
+
+            window.clear(Color::BLACK);
+            window.draw(&shape);
+            sfegui.draw(&mut window, None);
+            window.display();
+        }
     }
 }

shell.nix

@@ -29,6 +29,7 @@ mkShell {
     libXrandr
     libXi
     pkg-config
+    sfml
   ] ++ [
     #python3
     libGL