feat(engine-ecs): make &World implement system::ParamHEADmaster

1 files changed, 17 insertions, 1 deletions

diff --git a/engine-ecs/src/lib.rs b/engine-ecs/src/lib.rs
index 8b3b8c3..6880a24 100644
--- a/engine-ecs/src/lib.rs
+++ b/engine-ecs/src/lib.rs
@@ -50,7 +50,13 @@ use crate::query::{
 use crate::sole::{Single, Sole};
 use crate::stats::Stats;
 use crate::system::observer::Observer;
-use crate::system::{Callbacks, Metadata as SystemMetadata, System, SystemComponent};
+use crate::system::{
+    Callbacks,
+    Metadata as SystemMetadata,
+    Param as SystemParam,
+    System,
+    SystemComponent,
+};
 use crate::uid::Uid;
 
 pub mod actions;
@@ -625,6 +631,16 @@ impl Default for World
     }
 }
 
+impl<'world> SystemParam<'world> for &'world World
+{
+    type Input = ();
+
+    fn new(world: &'world World, _system_metadata: &SystemMetadata) -> Self
+    {
+        world
+    }
+}
+
 /// The result of calling [`World::step`].
 pub enum StepResult
 {