# Entity

This class encapsulates an entity in the Entity Component System (ECS), which is essentially a unique identifier that can be associated with various components to represent objects in the game world.

```cpp
class Entity {
public:
    /**
     * @brief Construct a new Entity object with a unique identifier.
     * 
     * @param id The unique identifier for the entity.
     */
    explicit Entity(int id) : id_(id) {}

    /**
     * @brief Get the unique identifier for the entity.
     * 
     * @return The identifier of the entity as an integer.
     */
    int id() const { return id_; }

private:
    int id_; ///< The unique identifier for the entity
};
```


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