在c++中可以使用继承来实现ECS吗？

#include <iostream>
#include <vector>
#include <unordered_map>

// 组件基类
class Component {
public:
    virtual ~Component() = default;
};

// 具体组件
class Position : public Component {
public:
    float x, y;
};

class Velocity : public Component {
public:
    float vx, vy;
};

// 实体类
class Entity {
public:
    int id;
    std::unordered_map<std::type_index, Component*> components;

    template<typename T>
    void addComponent(T* component) {
        components[typeid(T)] = component;
    }

    template<typename T>
    T* getComponent() {
        return static_cast<T*>(components[typeid(T)]);
    }
};

// 系统基类
class System {
public:
    virtual void update(std::vector<Entity>& entities) = 0;
};

// 具体系统
class MovementSystem : public System {
public:
    void update(std::vector<Entity>& entities) override {
        for (auto& entity : entities) {
            auto position = entity.getComponent<Position>();
            auto velocity = entity.getComponent<Velocity>();
            if (position && velocity) {
                position->x += velocity->vx;
                position->y += velocity->vy;
            }
        }
    }
};

int main() {
    std::vector<Entity> entities;
    Entity entity1;
    entity1.id = 1;

    Position* pos1 = new Position();
    pos1->x = 0;
    pos1->y = 0;

    Velocity* vel1 = new Velocity();
    vel1->vx = 1;
    vel1->vy = 1;

    entity1.addComponent(pos1);
    entity1.addComponent(vel1);

    entities.push_back(entity1);

    MovementSystem movementSystem;
    movementSystem.update(entities);

    auto pos = entities[0].getComponent<Position>();
    std::cout << "Entity 1 Position: (" << pos->x << ", " << pos->y << ")\n";

    return 0;
}