diff --git a/crates/bevy_ecs/src/world/mod.rs b/crates/bevy_ecs/src/world/mod.rs index f17a5522ec..019434be5d 100644 --- a/crates/bevy_ecs/src/world/mod.rs +++ b/crates/bevy_ecs/src/world/mod.rs @@ -570,6 +570,20 @@ impl World { unsafe { self.get_resource_with_id(component_id) } } + pub fn is_resource_added(&self) -> bool { + let component_id = self.components.get_resource_id(TypeId::of::()).unwrap(); + let column = self.get_populated_resource_column(component_id).unwrap(); + let ticks = unsafe { &*column.get_ticks_mut_ptr() }; + ticks.is_added(self.last_change_tick(), self.read_change_tick()) + } + + pub fn is_resource_changed(&self) -> bool { + let component_id = self.components.get_resource_id(TypeId::of::()).unwrap(); + let column = self.get_populated_resource_column(component_id).unwrap(); + let ticks = unsafe { &*column.get_ticks_mut_ptr() }; + ticks.is_changed(self.last_change_tick(), self.read_change_tick()) + } + /// Gets a mutable reference to the resource of the given type, if it exists. Otherwise returns /// [None] Resources are "unique" data of a given type. #[inline]