1 files changed, 31 insertions, 0 deletions
diff --git a/src/game_loop.rs b/src/game_loop.rs
new file mode 100644
index 0000000..34dd477
--- /dev/null
+++ b/src/game_loop.rs
@@ -0,0 +1,31 @@
+use std::cell::RefCell;
+use std::rc::Rc;
+
+use wasm_bindgen::prelude::Closure;
+use wasm_bindgen::JsCast;
+
+use crate::game::Game;
+
+pub fn run(game: Game, update_period: i32) {
+    game.render();
+
+    let f = Rc::new(RefCell::new(None));
+    let g = f.clone();
+
+    *g.borrow_mut() = Some(Closure::wrap(Box::new(move |_| {
+
+        game.update();
+        game.render();
+
+        set_timeout(f.borrow().as_ref().unwrap(), update_period);
+
+    }) as Box<dyn FnMut(i32)>));
+
+    set_timeout(g.borrow().as_ref().unwrap(), update_period);
+}
+
+fn set_timeout(f: &Closure<dyn FnMut(i32)>, timeout: i32) {
+    web_sys::window().unwrap()
+        .set_timeout_with_callback_and_timeout_and_arguments_0(f.as_ref().unchecked_ref(), timeout)
+        .unwrap();
+}