fix quit event to exit game loop

src/main.rs

@@ -1,6 +1,8 @@
 use std::time::Duration;
 
-use sdl2::{event::Event, keyboard::Keycode, pixels::Color, rect::Rect, render::Canvas, video::Window};
+use sdl2::{
+    event::Event, keyboard::Keycode, pixels::Color, rect::Rect, render::Canvas, video::Window,
+};
 
 mod bong;
 
@@ -16,11 +18,10 @@ impl Element {
             Element::Rectangle(color) => {
                 canvas.set_draw_color(*color);
                 let _ = canvas.fill_rect(Rect::new(x, y, 50, 50));
-            },
             }
         }
     }
-
+}
 
 fn main() {
     let sdl_context = sdl2::init().unwrap();
@@ -38,8 +39,7 @@ fn main() {
     canvas.clear();
     canvas.present();
     let mut event_pump = sdl_context.event_pump().unwrap();
-    loop {
-        
+    'game_loop: loop {
         canvas.set_draw_color(Color::RGB(170, 200, 255));
         canvas.clear();
         for event in event_pump.poll_iter() {
@@ -48,12 +48,15 @@ fn main() {
                 | Event::KeyDown {
                     keycode: Some(Keycode::Escape),
                     ..
-                } => break,
+                } => break 'game_loop,
                 _ => {}
             }
         }
         // The rest of the game loop goes here...
-        let dom = Element::Div(vec![Element::Rectangle(Color::RGB(1, 238, 34)), Element::Rectangle(Color::RGB(123, 123, 123))]);
+        let dom = Element::Div(vec![
+            Element::Rectangle(Color::RGB(1, 238, 34)),
+            Element::Rectangle(Color::RGB(123, 123, 123)),
+        ]);
 
         canvas.set_draw_color(Color::RGB(255, 0, 0));
         let _ = canvas.fill_rect(Rect::new(0, 0, 50, 50));