Position.hpp

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#ifndef CORE_SYSTEMS_POSITION_HPP
#define CORE_SYSTEMS_POSITION_HPP
 
#include <BLIB/Containers/Grid.hpp>
#include <BLIB/ECS.hpp>
#include <BLIB/Engine/System.hpp>
#include <BLIB/Events.hpp>
#include <BLIB/Tilemap/Position.hpp>
#include <Core/Events/EntityMoved.hpp>
#include <Core/Events/Maps.hpp>
#include <unordered_map>
 
namespace core
{
namespace system
{
class Systems;
 
class Position
: public bl::engine::System
, public bl::event::Listener<event::EntityMoved, bl::ecs::event::ComponentAdded<bl::tmap::Position>,
                             bl::ecs::event::ComponentRemoved<bl::tmap::Position>,
                             event::MapSwitch> {
public:
    Position(Systems& owner);
 
    virtual ~Position() = default;
 
    bl::ecs::Entity getEntity(const bl::tmap::Position& pos) const;
 
    bool spaceFree(const bl::tmap::Position& position) const;
 
    bl::ecs::Entity search(const bl::tmap::Position& start, bl::tmap::Direction dir,
                           unsigned int range);
 
    void editorPushLevel();
 
    void editorPopLevel();
 
private:
    Systems& owner;
    std::vector<bl::ctr::Vector2D<bl::ecs::Entity>> entityMap;
 
    virtual void observe(const event::EntityMoved& event) override;
    virtual void observe(const bl::ecs::event::ComponentAdded<bl::tmap::Position>& event) override;
    virtual void observe(
        const bl::ecs::event::ComponentRemoved<bl::tmap::Position>& event) override;
    virtual void observe(const event::MapSwitch& event) override;
 
    virtual void init(bl::engine::Engine&) override;
    virtual void update(std::mutex&, float, float, float, float) override;
 
    bl::ecs::Entity& get(const bl::tmap::Position& pos);
};
 
} // namespace system
} // namespace core
 
#endif