Enable init.lua to interact with default MUD

src/frame_view.rs

@@ -104,7 +104,7 @@ impl PartialEq for FrameData {
 
 pub type RegisteredTermFrames = HashMap<FrameId, FrameData>;
 
-fn get_or_make_term_frame<'a>(
+pub(super) fn get_or_make_term_frame<'a>(
     frame: &FrameId,
     frames: &'a mut RegisteredTermFrames,
     // Only used for callbacks, expected frames already borrowed mut!

src/lua_engine.rs

@@ -240,6 +240,12 @@ pub fn install_lua_globals(
             ctx.set_global("commands", cmd_table);
             let info_table = Table::new(&ctx);
             ctx.set_global("info", info_table);
+            // Default everything to frame 1 for startup.
+            info_table.set(
+                ctx,
+                ctx.intern_static(b"current_frame"),
+                intern_id::<FrameId>(ctx, FrameId(1)),
+            )?;
 
             let telopt_table = Table::new(&ctx);
             let _ = info_table.set(ctx, "telopts", telopt_table);

src/lua_engine/frames.rs

@@ -5,6 +5,7 @@ use crate::{
     timer_host::TimerHostAccessContext,
     FrameId, FrameViewType, GlobalLayoutCell, GlobalLayoutState, GlobalMemoCell,
 };
+use anyhow::anyhow;
 use gc_arena::{Gc, Rootable};
 use itertools::Itertools;
 use piccolo::{
@@ -523,7 +524,10 @@ fn list_timers<'gc>(
     cur_frame_id: FrameId,
 ) -> Result<(), Error<'gc>> {
     let timer_val = match global_memo.frame_registry.borrow().get(&cur_frame_id) {
-        None => Err(anyhow::Error::msg("Frame no longer exists"))?,
+        None => Err(anyhow::anyhow!(
+            "List timers: Frame {} no longer exists",
+            cur_frame_id.0,
+        ))?,
         Some(frame_dat) => Table::from_value(ctx, frame_dat.timer_host.to_value(ctx)?)?,
     };
     if timer_val.iter().next().is_none() {
@@ -631,7 +635,7 @@ pub(super) fn tick<'gc>(
             .borrow_mut()
             .get_mut(&cur_frame_id)
         {
-            None => Err(anyhow::Error::msg("Frame no longer exists"))?,
+            None => Err(anyhow!("Tick: Frame {} no longer exists", cur_frame_id.0,))?,
             Some(frame_dat) => frame_dat.timer_host.add_record(
                 GlobalCellTermFrameTimerHostAccess {
                     global_memo: global_memo.clone(),
@@ -705,7 +709,7 @@ pub(super) fn delay<'gc>(
             .borrow_mut()
             .get_mut(&cur_frame_id)
         {
-            None => Err(anyhow::Error::msg("Frame no longer exists"))?,
+            None => Err(anyhow!("Delay: Frame {} no longer exists", cur_frame_id.0))?,
             Some(frame_dat) => frame_dat.timer_host.add_record(
                 GlobalCellTermFrameTimerHostAccess {
                     global_memo: global_memo.clone(),
@@ -745,7 +749,7 @@ pub(super) fn untick<'gc>(
             .borrow_mut()
             .get_mut(&cur_frame_id)
         {
-            None => Err(anyhow::Error::msg("Frame no longer exists"))?,
+            None => Err(anyhow!("Untick: Frame {} no longer exists", cur_frame_id.0,))?,
             Some(frame_dat) => frame_dat.timer_host.remove_timer(name)?,
         };
         Ok(piccolo::CallbackReturn::Return)
@@ -768,7 +772,7 @@ pub(super) fn editor<'gc>(
             .borrow_mut()
             .get_mut(&cur_frame_id)
         {
-            None => Err(anyhow::Error::msg("Frame no longer exists"))?,
+            None => Err(anyhow!("Editor: Frame {} no longer exists", cur_frame_id.0))?,
             Some(_frame_dat) => {
                 let mut new_gl: GlobalLayoutState = (*global_memo.layout.borrow().as_ref()).clone();
                 new_gl
@@ -816,7 +820,10 @@ pub fn html<'gc>(
             .borrow_mut()
             .get_mut(&target_frame_id)
         {
-            None => Err(anyhow::Error::msg("Frame no longer exists"))?,
+            None => Err(anyhow!(
+                "html: Frame {} no longer exists",
+                target_frame_id.0
+            ))?,
             Some(_frame_dat) => {
                 let mut new_gl: GlobalLayoutState = (*global_memo.layout.borrow().as_ref()).clone();
                 new_gl

src/main.rs

@@ -82,21 +82,27 @@ fn app() -> Html {
         layout: RefCell::new((*global_layout).clone()),
         log_engine: RefCell::new(Default::default()),
     });
+    let global_memo_cb = global_memo.clone();
     use_memo((), |_| {
+        get_or_make_term_frame(
+            &FrameId(1),
+            &mut global_memo.frame_registry.borrow_mut(),
+            &global_memo_cb,
+        );
         install_lua_globals(&global_memo, global_layout.setter())
             .expect("Couldn't install Lua globals");
-        match try_run_script("init.lua", &global_memo) {
-            Ok(_) => {}
-            Err(e) => {
-                console::log_1(&format!("Error running init.lua: {}", e).into());
-            }
-        }
         match connect_default_mud(&global_memo) {
             Ok(_) => {}
             Err(e) => {
                 console::log_1(&format!("Error connecting to default MUD: {}", e).into());
             }
         }
+        match try_run_script("init.lua", &global_memo) {
+            Ok(_) => {}
+            Err(e) => {
+                console::log_1(&format!("Error running init.lua: {}", e).into());
+            }
+        }
     });
 
     html! {