chore: rename ecs* crates to engine-ecs*HEADmaster

1 files changed, 29 insertions, 0 deletions

diff --git a/engine-ecs/src/entity/obtainer.rs b/engine-ecs/src/entity/obtainer.rs
new file mode 100644
index 0000000..6c2ea96
--- /dev/null
+++ b/engine-ecs/src/entity/obtainer.rs
@@ -0,0 +1,29 @@
+use crate::entity::Handle as EntityHandle;
+use crate::system::{Metadata as SystemMetadata, Param as SystemParam};
+use crate::uid::Uid;
+use crate::World;
+
+#[derive(Debug)]
+pub struct Obtainer<'world>
+{
+    world: &'world World,
+}
+
+impl<'world> SystemParam<'world> for Obtainer<'world>
+{
+    type Input = ();
+
+    fn new(world: &'world World, _system_metadata: &SystemMetadata) -> Self
+    {
+        Self { world }
+    }
+}
+
+impl Obtainer<'_>
+{
+    #[must_use]
+    pub fn get_entity(&self, entity_id: Uid) -> Option<EntityHandle<'_>>
+    {
+        self.world.get_entity(entity_id)
+    }
+}