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#pragma once
#include <bitset>
#include <memory>
#include <vector>
namespace yage
{
/**
* The component mask represents all the components that the entity is
* currently attached to.
*/
typedef std::bitset<64> ComponentMask;
typedef unsigned int GroupId;
class BaseComponent
{
protected:
virtual GroupId getGroup() = 0;
static GroupId group_id_counter_;
private:
friend class EntityManager;
};
template <typename T>
class Component : public BaseComponent
{
private:
GroupId getGroup() override;
};
class ComponentGroup
{
public:
typedef std::vector<std::unique_ptr<BaseComponent>> Container;
ComponentGroup &add(std::unique_ptr<BaseComponent> &&component);
Container::iterator begin();
Container::iterator end();
private:
Container components_;
};
template <typename T>
GroupId Component<T>::getGroup()
{
static GroupId group_id = group_id_counter_++;
return group_id;
}
} // namespace yage
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