Hierarchy.hpp

Go to the documentation of this file.

#pragma once
#include "System.hpp"
 
namespace Cori {
    namespace World {
        namespace Systems {
            class Hierarchy final : public System {
            public:
 
                bool Create();
 
                static constexpr SystemPriority Priority = 50;
            protected:
                friend Entity;
 
                static std::expected<void, Core::CoriError<>> SetParent(Entity subject, Entity parent);
 
                static std::expected<void, Core::CoriError<>> LinkToParent(Entity subject, Entity parent);
 
                static void UnlinkFromParent(Entity subject);
 
                static std::expected<std::vector<Entity>, Core::CoriError<>> GetSiblings(Entity subject);
 
                static std::expected<std::vector<Entity>, Core::CoriError<>> GetChildren(Entity subject);
 
                static std::expected<Entity, Core::CoriError<>> GetParent(Entity subject);
 
                static std::expected<Entity, Core::CoriError<>> FindChildByName(Entity subject, const char* name);
 
                static std::expected<Entity, Core::CoriError<>> FindChildByName(Entity subject, const std::string_view name);
 
                static std::expected<Entity, Core::CoriError<>> FindChildByName(Entity subject, const std::string& name);
 
                static void DestroyChildren(Entity subject);
 
                static void PrintHierarchy(Entity subject);
 
                static void DrawHierarchyRecursive(const Entity& entity, const std::string& prefix, const bool isLast);
 
            private:
                void OnHierarchyComponentDestroyed(entt::registry& registry, entt::entity entity);
            };
        }
    }
}