classDiagram
    class IEntityIterator~T~ {
        <<interface>>
        +HasNext() bool
        +Next() T*
        +Reset()
    }
    
    class EntityIterator~T~ {
        -List~T~ _entities
        -int _currentIndex
        +HasNext() bool
        +Next() T*
        +Reset()
    }
    
    class Simulator~T~ {
        <<abstract>>
        -List~T~ _entities
        +CreateIterator() IEntityIterator~T~
    }
    
    class Dish {
    }
    
    IEntityIterator~T~ <|.. EntityIterator~T~
    Simulator~T~ --> IEntityIterator~T~ : creates
    Simulator~T~ <|-- Dish
    EntityIterator~T~ *-- List~T~ : iterates over
    
    note for Simulator~T~ "Provides iterator for
entity collections"
    note for EntityIterator~T~ "Iterates over entities
in the simulator"