Add: global factor controlling fps base interval

crates/sprimo-tauri/src/main.rs

@@ -31,6 +31,7 @@ const MENU_ID_TOGGLE_DEBUG_OVERLAY: &str = "toggle_debug_overlay";
 const MENU_ID_QUIT: &str = "quit";
 const EVENT_RUNTIME_SNAPSHOT: &str = "runtime:snapshot";
 const EVENT_RUNTIME_DEBUG_OVERLAY_VISIBLE: &str = "runtime:debug-overlay-visible";
+const EVENT_RUNTIME_ANIMATION_SLOWDOWN_FACTOR: &str = "runtime:animation-slowdown-factor";
 
 #[derive(Debug, Clone, serde::Serialize)]
 struct UiAnimationClip {
@@ -80,6 +81,7 @@ struct UiSettingsSnapshot {
     scale: f32,
     visible: bool,
     always_on_top: bool,
+    tauri_animation_slowdown_factor: u8,
 }
 
 #[derive(Debug, Clone, serde::Serialize)]
@@ -183,9 +185,37 @@ fn settings_snapshot(state: tauri::State<'_, AppState>) -> Result<UiSettingsSnap
         scale: snapshot.scale,
         visible: snapshot.flags.visible,
         always_on_top: snapshot.flags.always_on_top,
+        tauri_animation_slowdown_factor: state
+            .runtime_core
+            .frontend_tauri_animation_slowdown_factor()
+            .map_err(|err| err.to_string())?,
     })
 }
 
+#[tauri::command]
+fn tauri_animation_slowdown_factor(state: tauri::State<'_, AppState>) -> Result<u8, String> {
+    state
+        .runtime_core
+        .frontend_tauri_animation_slowdown_factor()
+        .map_err(|err| err.to_string())
+}
+
+#[tauri::command]
+fn set_tauri_animation_slowdown_factor(
+    app_handle: tauri::AppHandle,
+    state: tauri::State<'_, AppState>,
+    factor: u8,
+) -> Result<u8, String> {
+    let persisted = state
+        .runtime_core
+        .set_frontend_tauri_animation_slowdown_factor(factor)
+        .map_err(|err| err.to_string())?;
+    app_handle
+        .emit(EVENT_RUNTIME_ANIMATION_SLOWDOWN_FACTOR, persisted)
+        .map_err(|err| err.to_string())?;
+    Ok(persisted)
+}
+
 #[tauri::command]
 fn list_sprite_packs(state: tauri::State<'_, AppState>) -> Result<Vec<UiSpritePackOption>, String> {
     let root = sprite_pack_root(state.runtime_core.as_ref())?;
@@ -349,6 +379,8 @@ fn main() -> Result<(), AppError> {
             debug_overlay_visible,
             set_debug_overlay_visible,
             settings_snapshot,
+            tauri_animation_slowdown_factor,
+            set_tauri_animation_slowdown_factor,
             list_sprite_packs,
             set_sprite_pack,
             set_scale,