Primitive game entity (C++)

Entity.cpp

/**
    Entity.cpp
    Implements the Entity class, representing
    an object within the game engine.

    @author Sam Griffiths
    www.computist.xyz
*/


#include "Entity.h"

EntityID Entity::idCount = 0;
std::queue<EntityID> Entity::idRemoved;

Entity::Entity(std::string name) : _name(name)
{
    //Take re-usable IDs before claiming new ones
    if (!idRemoved.empty())
    {
        _id = idRemoved.front();
        idRemoved.pop();
    }
    else _id = idCount++;
}

Entity::~Entity()
{
    idRemoved.push(_id);
}

Entity.h

/**
    Entity.h
    Declares the Entity class, representing
    an object within the game engine.

    @author Sam Griffiths
    www.computist.xyz
*/

#pragma once

#include <string>
#include <queue>

typedef unsigned long int EntityID;

class Entity
{
private:
    EntityID _id;
    static EntityID idCount;
    static std::queue<EntityID> idRemoved;

    std::string _name;

public:
    Entity(std::string);
    ~Entity();

    //Returns the unique ID of the Entity
    EntityID id() const { return _id; }

    //Returns the name of the Entity
    std::string name() const { return _name; }
};