tweaks

engine/game.go

@@ -79,10 +79,7 @@ func (g *Game) updateRecursive(c interface{}) error {
 			return err
 		}
 	}
-	if c == g { // prevent infinite recursion
-		return nil
-	}
-	if u, ok := c.(Updater); ok {
+	if u, ok := c.(Updater); ok && c != g {
 		return u.Update()
 	}
 	return nil

engine/interface.go

@@ -161,7 +161,7 @@ type Transformer interface {
 
 // Updater components can update themselves. Update is called repeatedly. Each
 // component must call Update on any internal components not known to the engine
-//  (i.e. not passed to Game.Register or returned from Scan).
+// (i.e. not passed to Game.Register or returned from Scan).
 type Updater interface {
 	Update() error
 }