Register Velocity in hello world chapter

WaDelma · Jan 3, 2019 · 20372dc · 20372dc
1 parent 182171a
commit 20372dc
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/book/src/02_hello_world.md b/book/src/02_hello_world.md
@@ -209,6 +209,7 @@ impl<'a> System<'a> for HelloWorld {
 fn main() {
     let mut world = World::new();
     world.register::<Position>();
+    world.register::<Velocity>();
 
     world.create_entity().with(Position { x: 4.0, y: 7.0 }).build();