Implement ECSHEADmain

1 files changed, 34 insertions, 0 deletions

diff --git a/src/bundle.rs b/src/bundle.rs
new file mode 100644
index 0000000..08753a7
--- /dev/null
+++ b/src/bundle.rs
@@ -0,0 +1,34 @@
+use super::Entity;
+use super::component::{Component, ComponentStorage};
+
+pub trait ComponentBundle<W> {
+    fn insert(self, world: &mut W, entity: Entity);
+}
+
+macro_rules! impl_bundle_tuple {
+    ($($T:ident),+) => {
+        impl<W, $($T),+> ComponentBundle<W> for ($($T,)+)
+        where
+            $(
+                $T: Component,
+                W: ComponentStorage<$T>,
+            )+
+        {
+            #[allow(non_snake_case)]
+            fn insert(self, world: &mut W, entity: Entity) {
+                let ($($T,)+) = self;
+
+                $(
+                    world.insert(entity, $T);
+                )+
+            }
+        }
+    };
+}
+
+impl_bundle_tuple!(A);
+impl_bundle_tuple!(A, B);
+impl_bundle_tuple!(A, B, C);
+impl_bundle_tuple!(A, B, C, D);
+impl_bundle_tuple!(A, B, C, D, E);
+impl_bundle_tuple!(A, B, C, D, E, F);