Localize the splitscreen join and controller prompts

The join strip, the waiting player's prompt and the controller notices
read horizon.splitscreen.prompt.* keys (en_us, fr_fr) instead of English
literals.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

crates/horizon-client/assets/horizon/lang/en_us.json

@@ -361,6 +361,17 @@
   "horizon.splitscreen.setup.help.apply": "Play the way the map shows.",
   "horizon.splitscreen.setup.help.unchanged": "Nothing changed yet.",
   "horizon.splitscreen.setup.give_up_pad": "Give Up Pad",
+  "horizon.splitscreen.prompt.controller_connected": "Controller connected",
+  "horizon.splitscreen.prompt.controller_disconnected": "Controller disconnected",
+  "horizon.splitscreen.prompt.controller_disconnected.hint": "Reconnect it, or press a button on another",
+  "horizon.splitscreen.prompt.join.one": "%s wants to join",
+  "horizon.splitscreen.prompt.join.many": "%s controllers want to join",
+  "horizon.splitscreen.prompt.join.yes": "Join",
+  "horizon.splitscreen.prompt.join.as_p1": "Play as P1",
+  "horizon.splitscreen.prompt.join.no": "No",
+  "horizon.splitscreen.prompt.lost": "%s: controller disconnected",
+  "horizon.splitscreen.prompt.lost.use_another": "Use another",
+  "horizon.splitscreen.prompt.lost.leave": "Leave",
   "horizon.splitscreen.setup.help.give_up_pad": "Your controller stops driving you and is offered to join (A).",
   "horizon.splitscreen.setup.note.held_at": "%s to %s: A drops it here, B puts it back.",
   "horizon.splitscreen.setup.note.held": "%s picked up: left/right picks where, A drops, B puts it back."

crates/horizon-client/assets/horizon/lang/fr_fr.json

@@ -345,6 +345,17 @@
   "horizon.splitscreen.setup.help.apply": "Jouer comme le montre la carte.",
   "horizon.splitscreen.setup.help.unchanged": "Rien n'a encore changé.",
   "horizon.splitscreen.setup.give_up_pad": "Céder la manette",
+  "horizon.splitscreen.prompt.controller_connected": "Manette connectée",
+  "horizon.splitscreen.prompt.controller_disconnected": "Manette déconnectée",
+  "horizon.splitscreen.prompt.controller_disconnected.hint": "Reconnectez-la, ou appuyez sur un bouton d'une autre",
+  "horizon.splitscreen.prompt.join.one": "%s veut rejoindre",
+  "horizon.splitscreen.prompt.join.many": "%s manettes veulent rejoindre",
+  "horizon.splitscreen.prompt.join.yes": "Rejoindre",
+  "horizon.splitscreen.prompt.join.as_p1": "Jouer en J1",
+  "horizon.splitscreen.prompt.join.no": "Non",
+  "horizon.splitscreen.prompt.lost": "%s : manette déconnectée",
+  "horizon.splitscreen.prompt.lost.use_another": "Utiliser une autre",
+  "horizon.splitscreen.prompt.lost.leave": "Quitter",
   "horizon.splitscreen.setup.help.give_up_pad": "Votre manette ne vous contrôle plus et peut rejoindre la partie (A).",
   "horizon.splitscreen.setup.note.held_at": "%s vers %s : A le dépose ici, B le remet en place.",
   "horizon.splitscreen.setup.note.held": "%s est pris : gauche/droite choisit où, A dépose, B remet en place."

crates/horizon-client/src/game/split/hud.rs

@@ -58,7 +58,7 @@ fn panel(batch: &mut HudBatch, atlas: &horizon_client::hud::HudAtlas, [px, py, p
 pub(super) struct Prompt {
     pub(super) ask: Ask,
     pub(super) title: String,
-    pub(super) choices: Vec<(Button, &'static str)>,
+    pub(super) choices: Vec<(Button, String)>,
 }
 
 /// What a prompt asks: a controller may join (every view, a strip at the top: nobody stops
@@ -70,12 +70,20 @@ pub(super) enum Ask {
     Lost,
 }
 
+/// A splitscreen prompt's text in the selected language (`horizon.splitscreen.prompt.*`).
+pub(super) fn tr(key: &str, args: &[&dyn std::fmt::Display]) -> String {
+    horizon_client::lang::tr(&format!("horizon.splitscreen.prompt.{key}"), args)
+}
+
 /// The question on a waiting player's view.
 pub(super) fn lost_prompt(name: &str) -> Prompt {
     Prompt {
         ask: Ask::Lost,
-        title: format!("{name}: controller disconnected"),
-        choices: vec![(Button::South, "Use another"), (Button::East, "Leave")],
+        title: tr("lost", &[&name]),
+        choices: vec![
+            (Button::South, tr("lost.use_another", &[])),
+            (Button::East, tr("lost.leave", &[])),
+        ],
     }
 }
 
@@ -119,7 +127,7 @@ impl Game<'_> {
             let glyphs: Vec<_> = prompt
                 .choices
                 .iter()
-                .map(|&(b, what)| (b.label(style), b.color(style), what))
+                .map(|(b, what)| (b.label(style), b.color(style), what.as_str()))
                 .collect();
             let line: f32 = glyphs
                 .iter()

crates/horizon-client/src/game/split/pads.rs

@@ -1,6 +1,7 @@
 //! Controllers: which player each drives, joining with one, and one disconnecting (its player
 //! waits for another). One reader for every player's game (`PadRouter`) while splitscreen
 //! watches the controllers; otherwise P1 reads them itself, as without splitscreen.
+use super::hud::tr;
 use super::*;
 use crate::game::pad::{PadEvent, PadId};
 use horizon_client::gamepad::{Button, PadState};
@@ -312,8 +313,8 @@ impl Split<'_> {
             if self.in_world() {
                 self.lost.push(Lost { seat: 1, id, uuid });
                 self.host.split_hud.notice = Some(Notice::new(
-                    "Controller disconnected",
-                    "Reconnect it, or press a button on another",
+                    tr("controller_disconnected", &[]),
+                    tr("controller_disconnected.hint", &[]),
                 ));
             }
             return;
@@ -351,7 +352,7 @@ impl Split<'_> {
         if hud.prompt.as_ref().is_some_and(|p| p.ask == Ask::Lost) {
             hud.prompt = None;
         }
-        hud.notice = Some(Notice::new("Controller connected", ""));
+        hud.notice = Some(Notice::new(tr("controller_connected", &[]), ""));
     }
 
     /// A button on a controller nobody has while players wait for one: true when it answered
@@ -396,14 +397,14 @@ impl Split<'_> {
     /// Every player sees the controllers waiting to join, whatever it is doing.
     fn ask_to_join(&mut self) {
         let title = match self.offers.as_slice() {
-            [(id, _)] => format!("{} wants to join", self.pads.name(*id)),
-            offers => format!("{} controllers want to join", offers.len()),
+            [(id, _)] => tr("join.one", &[&self.pads.name(*id)]),
+            offers => tr("join.many", &[&offers.len()]),
         };
-        let mut choices = vec![(Button::South, "Join")];
+        let mut choices = vec![(Button::South, tr("join.yes", &[]))];
         if self.p1_pad.owner.is_none() && self.host.settings.controller.enabled {
-            choices.push((Button::North, "Play as P1"));
+            choices.push((Button::North, tr("join.as_p1", &[])));
         }
-        choices.push((Button::East, "No"));
+        choices.push((Button::East, tr("join.no", &[])));
         self.prompt_join(Some(Prompt {
             ask: Ask::Join,
             title,