Try #3002:

bevyengine · Mar 7, 2022 · 1b2b41c · 1b2b41c
2 parents cba9bcc + 8394e9b
commit 1b2b41c
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Showing 19 changed files with 806 additions and 363 deletions.
diff --git a/crates/bevy_core/src/lib.rs b/crates/bevy_core/src/lib.rs
@@ -15,7 +15,9 @@ pub use time::*;
 pub mod prelude {
     //! The Bevy Core Prelude.
     #[doc(hidden)]
-    pub use crate::{DefaultTaskPoolOptions, Name, Time, Timer};
+    pub use crate::{
+        DefaultTaskPoolOptions, FixedTime, FixedTimestep, FixedTimestepState, Name, Time, Timer,
+    };
 }
 
 use bevy_app::prelude::*;
@@ -34,8 +36,7 @@ pub struct CorePlugin;
 /// A `SystemLabel` enum for ordering systems relative to core Bevy systems.
 #[derive(Debug, PartialEq, Eq, Clone, Hash, SystemLabel)]
 pub enum CoreSystem {
-    /// Updates the elapsed time. Any system that interacts with [Time] component should run after
-    /// this.
+    /// Advances time. Any system that interacts with the [`Time`] resource should run after this.
     Time,
 }
 
@@ -49,18 +50,19 @@ impl Plugin for CorePlugin {
             .create_default_pools(&mut app.world);
 
         app.init_resource::<Time>()
-            .init_resource::<FixedTimesteps>()
+            .init_resource::<FixedTime>()
+            .init_resource::<FixedTimestepState>()
             .register_type::<HashSet<String>>()
             .register_type::<Option<String>>()
             .register_type::<Entity>()
             .register_type::<Name>()
             .register_type::<Range<f32>>()
             .register_type::<Timer>()
-            // time system is added as an "exclusive system" to ensure it runs before other systems
-            // in CoreStage::First
+            // Added as an "exclusive" system to ensure it runs before
+            // any other systems in CoreStage::First.
             .add_system_to_stage(
                 CoreStage::First,
-                time_system.exclusive_system().label(CoreSystem::Time),
+                update_time.exclusive_system().label(CoreSystem::Time),
             );
 
         register_rust_types(app);