faster hot reload

src/main.rs

@@ -4,7 +4,10 @@ use hotwatch::{
     notify::event::{DataChange, ModifyKind},
 };
 use macroquad::prelude::*;
-use std::sync::{Arc, RwLock};
+use std::{
+    sync::{Arc, RwLock},
+    time::Duration,
+};
 
 fn window_conf() -> Conf {
     Conf {
@@ -30,7 +33,8 @@ async fn main() {
 
     let writer = Arc::new(RwLock::new(None));
     let reader = writer.clone();
-    let mut hotwatch = hotwatch::Hotwatch::new().expect("hotwatch failed to initialize!");
+    let mut hotwatch = hotwatch::Hotwatch::new_with_custom_delay(Duration::from_millis(10))
+        .expect("hotwatch failed to initialize!");
     hotwatch
         .watch(file.clone(), move |event: hotwatch::Event| {
             if let hotwatch::EventKind::Modify(ModifyKind::Data(DataChange::Content)) = event.kind {
@@ -69,8 +73,9 @@ async fn main() {
                         }
                     };
                     if let Some(new_program) = new_program {
-                        state = migrate(state, new_program).await;
+                        state = migrate(state, new_program);
                     }
+
                     let events = fetch_events(&mut state);
                     update(&mut state, events);
                     draw(&mut state);

src/runtime/runtime.rs

@@ -32,7 +32,7 @@ pub async fn setup(code: ast::Program) -> State {
     }
 }
 
-pub async fn migrate(mut state: State, code: ast::Program) -> State {
+pub fn migrate(mut state: State, code: ast::Program) -> State {
     println!("Migrating...");
     match interpret::setup(code, primitive_funcs()) {
         Err(err) => {
@@ -56,9 +56,9 @@ pub async fn migrate(mut state: State, code: ast::Program) -> State {
                             state
                         }
                         Ok(result) => {
-                            println!("Success!");
                             state.game_state = result;
                             state.state = new_program_state;
+                            println!("Success!");
                             state
                         }
                     }