GECSManager.h

#pragma once
 
#include "GECS.h"
#include "../../Grid/Grid.h"
 
#include "../../Threader/Threader.h"
#include <regex>
#include <filesystem>
 
namespace fs = std::filesystem;
 
 
class Manager
{
private:
    Threader* _threader = nullptr;
    int lastEntityId = 0;
    int negativeEntityId = -1;
    std::vector<std::unique_ptr<Entity>> entities;
 
    std::array<std::vector<EmptyEntity*>, maxGroups> groupedEmptyEntities;
    std::array<std::vector<NodeEntity*>, maxGroups> groupedNodeEntities;
    std::array<std::vector<LinkEntity*>, maxGroups> groupedLinkEntities;
 
    std::vector<EmptyEntity*> visible_emptyEntities;
    std::vector<NodeEntity*> visible_nodes;
    std::vector<LinkEntity*> visible_links;
    
    std::array<std::vector<EmptyEntity*>, maxGroups> visible_groupedEmptyEntities;
    std::array<std::vector<NodeEntity*>, maxGroups> visible_groupedNodeEntities;
    std::array<std::vector<LinkEntity*>, maxGroups> visible_groupedLinkEntities;
 
    bool _update_active_entities = false;
public:
 
    std::vector<NodeEntity*> movedNodes;
    std::mutex movedNodesMutex;
 
    bool arrowheadsEnabled = false;
    bool last_arrowheadsEnabled = false;
 
    std::unordered_map<std::string, std::vector<std::string>> componentNames;
 
    std::unique_ptr<Grid> grid;
 
    Manager() {}
 
    ~Manager() { _threader = nullptr;  }
 
    void setThreader(Threader& mthreader) {
        _threader = &mthreader;
    }
 
    void update(float deltaTime = 1.0f)
    {
        
        if (_threader && !_threader->t_queue.shuttingDown) {
 
 
            //_threader->parallel(visible_emptyEntities.size(), [&](int start, int end) {
            //  for (int i = start; i < end; i++) {
            //      if (visible_emptyEntities[i] && visible_emptyEntities[i]->isActive()) {
            //          visible_emptyEntities[i]->cellUpdate();
            //      }
            //  }
            //  });
 
            //_threader->parallel(visible_nodes.size(), [&](int start, int end) {
            //  for (int i = start; i < end; i++) {
            //      if (visible_nodes[i] && visible_nodes[i]->isActive()) {
            //          visible_nodes[i]->cellUpdate();
            //      }
            //  }
            //  });
 
            //? THIS MAY CAUSE ERRORS, IF REMOVE LINK FROM CELL AND OTHER LINK THAT HAS THAT CELL IN SEARCH
            //? WILL PUMP IN AN EMPTY ELEMENT OR THE SIZE WILL BE SMALLER FOR THAT LINK TO FIND ELEMENT
            for (auto& e : movedNodes) {
                for (auto& link : e->getInLinks()) {
                    link->cellUpdate();
                }
                for (auto& link : e->getOutLinks()) {
                    link->cellUpdate();
                }
            }
 
            _threader->parallel(movedNodes.size(), [&](int start, int end) {
                for (int i = start; i < end; i++) {
                    for (auto& link : movedNodes[i]->getInLinks()) {
                        link->updateLinkToPorts();
                    }
                }
                });
 
            _threader->parallel(movedNodes.size(), [&](int start, int end) {
                for (int i = start; i < end; i++) {
                    for (auto& link : movedNodes[i]->getOutLinks()) {
                        link->updateLinkToPorts();
                    }
                }
                });
 
            movedNodes.clear();
 
            _threader->parallel(visible_emptyEntities.size(), [&](int start, int end) {
                for (int i = start; i < end; i++) {
                    if (visible_emptyEntities[i] && visible_emptyEntities[i]->isActive()) {
                        visible_emptyEntities[i]->update(deltaTime);
                    }
                }
                });
 
            
            _threader->parallel(visible_nodes.size(), [&](int start, int end) {
                for (int i = start; i < end; i++) {
                    if (visible_nodes[i] && visible_nodes[i]->isActive()) {
                        visible_nodes[i]->update(deltaTime);
                    }
                }
 
                });
 
            
            _threader->parallel(visible_links.size(), [&](int start, int end) {
 
                for (int i = start; i < end; i++) {
                    if (visible_links[i] && visible_links[i]->isActive()) {
                        visible_links[i]->update(deltaTime);
                    }
                }
                });
                
        }
 
        else {
 
 
            for (auto& e : movedNodes) {
                for (auto& link : e->getInLinks()) {
                    link->cellUpdate();
                }
                for (auto& link : e->getOutLinks()) {
                    link->cellUpdate();
                }
            }
 
            for (auto& e : movedNodes) {
                for (auto& link : e->getInLinks()) {
                    link->updateLinkToPorts();
                }
            }
 
            for (auto& e : movedNodes) {
                for (auto& link : e->getOutLinks()) {
                    link->updateLinkToPorts();
                }
            }
 
            movedNodes.clear();
 
            for (auto& e : visible_emptyEntities) {
                if (!e || !e->isActive()) continue;
 
                e->update(deltaTime);
            }
 
            if (arrowheadsEnabled) {
                for (auto& e : visible_nodes) {
                    if (!e || !e->isActive()) continue;
 
                    e->update(deltaTime);
 
                }
            }
            
 
            for (auto& e : visible_links) {
                if (!e || !e->isActive()) continue;
 
                e->update(deltaTime);
            }
        }
    }
 
    // update fully will update all nodes and links in the world
    void updateFully(float deltaTime = 1.0f)
    {
        // the links are updating once since after first update we check wether the nodes are aligned with the ownerCells
        for (auto& e : entities) { 
            if (!e || !e->isActive()) continue;
            
            e->update(deltaTime);
        }
    }
 
    void refresh(ICamera* camera = nullptr)
    {
 
        if (grid && (camera->hasChanged() || grid->gridLevelChanged())) {
            bool interceptedCellsChanged = grid->setIntersectedCameraCells(*camera);
 
            if (interceptedCellsChanged) {
                aboutTo_updateActiveEntities();
            }
            camera->refreshCamera();
        }
 
        if (_update_active_entities) {
            _update_active_entities = false;
 
            updateActiveEntities();
            updateVisibleEntities();
        }
                
    }
 
    void aboutTo_updateActiveEntities() {
        _update_active_entities = true;
    }
 
    void updateActiveEntities();
 
    void updateVisibleEntities();
 
    void AddToGroup(EmptyEntity* mEntity, Group mGroup)
    {
        groupedEmptyEntities[mGroup].emplace_back(mEntity);
    }
 
    void AddToGroup(NodeEntity* mEntity, Group mGroup)
    {
        groupedNodeEntities[mGroup].emplace_back(mEntity);
    }
 
    void AddLinkToGroup(LinkEntity* mEntity, Group mGroup)
    {
        groupedLinkEntities[mGroup].emplace_back(mEntity);
    }
 
    const std::vector<std::unique_ptr<Entity>>& getEntities() const {
        return entities;
    }
 
    template <typename T>
    std::vector<T*> getVisible() {
        if constexpr (std::is_same_v<T, EmptyEntity>) {
            return visible_emptyEntities;
        }
        else if constexpr (std::is_same_v<T, NodeEntity>) {
            return visible_nodes;
        }
        else if constexpr (std::is_same_v<T, LinkEntity>) {
            return visible_links;
        }
        else {
            static_assert(sizeof(T) == 0, "Unsupported entity type.");
        }
    }
 
    template <typename T>
    std::vector<T*>& getVisibleGroup(Group mGroup) {
        if constexpr (std::is_same_v<T, EmptyEntity>) {
            return visible_groupedEmptyEntities[mGroup];
        }
        else if constexpr (std::is_same_v<T, NodeEntity>) {
            return visible_groupedNodeEntities[mGroup];
        }
        else if constexpr (std::is_same_v<T, LinkEntity>) {
            return visible_groupedLinkEntities[mGroup];
        }
        else {
            static_assert(sizeof(T) == 0, "Unsupported entity type.");
        }
    }
 
    template <typename T>
    std::vector<T*>& getGroup(Group mGroup) {
        if constexpr (std::is_same_v<T, EmptyEntity>) {
            return groupedEmptyEntities[mGroup];
        }
        else if constexpr (std::is_same_v<T, NodeEntity>) {
            return groupedNodeEntities[mGroup];
        }
        else if constexpr (std::is_same_v<T, LinkEntity>) {
            return groupedLinkEntities[mGroup];
        }
        else {
            static_assert(sizeof(T) == 0, "Unsupported entity type.");
        }
    }
 
    template <typename T, typename... TArgs>
    T& addEntityNoId(TArgs&&... mArgs)
    {
        T* e(new T(*this, std::forward<TArgs>(mArgs)...));
        e->setId(negativeEntityId--);
        std::unique_ptr<T> uPtr{ e };
        entities.emplace_back(std::move(uPtr));
 
        return *e;
    }
 
    template <typename T, typename... TArgs>
    T& addEntity(TArgs&&... mArgs)
    {
        T* e(new T(*this, std::forward<TArgs>(mArgs)...));
        e->setId(lastEntityId++);
        std::unique_ptr<T> uPtr{ e };
        entities.emplace_back(std::move(uPtr));
 
        return *e;
    }
 
    void resetEntityId() {
        lastEntityId = 0;
    }
 
    Entity* getEntityFromId(unsigned int mId) {
        for (auto& entity : entities) {
            if (entity->getId() == mId && entity->isActive()) {
                return &*entity;
            }
        }
        return nullptr;
    }
 
    void clearAllEntities() {
        for (auto& group : groupedNodeEntities) {
            group.clear();
        }
        for (auto& group : groupedLinkEntities) {
            group.clear();
        }
        entities.clear();
    }
 
    void removeAllEntites() {
        for (std::size_t group = Manager::groupBackgroundLayer; group != Manager::buttonLabels; group++) {
            removeAllEntitiesFromGroup(group);
            removeAllEntitiesFromLinkGroup(group);
        }
    }
 
    void removeAllEntitiesFromGroup(Group mGroup) {
        auto& entitiesInGroup = groupedNodeEntities[mGroup];
 
        for (Entity* entity : entitiesInGroup) {
            entity->destroy();
        }
    }
    void removeAllEntitiesFromLinkGroup(Group mGroup) {
        auto& entitiesInGroup = groupedLinkEntities[mGroup];
 
        for (Entity* entity : entitiesInGroup) {
            entity->destroy();
        }
    }
 
    std::vector<Entity*> adjacentEntities(Entity* mainEntity, Group group) {
        std::vector<Entity*> nearbyEntities;
 
        auto adjacentCells = grid->getAdjacentCells(*mainEntity, grid->getGridLevel());
 
        for (Cell* adjCell : adjacentCells) {
            for (auto& neighbor : adjCell->nodes) {
                if (neighbor->hasGroup(group) && (neighbor != mainEntity) ) { 
                    nearbyEntities.push_back(neighbor);
                }
            }
        }
        
        return nearbyEntities;
    }
 
    enum groupLabels : std::size_t //todo should add groups at end for some reason
    {
        //back
        groupBackgroundLayer,
        panelBackground,
 
        //action
        groupLinks_0,
        groupGroupLinks_0,
        groupGroupLinks_1,
 
        groupArrowHeads_0,
 
        groupNodes_0,
        groupGroupNodes_0,
        groupGroupNodes_1,
        groupColliders,
 
        groupEmpties,
        groupSphereEmpties,
 
        groupRenderSprites,
        
        //fore
        buttonLabels,
    };
 
    const std::unordered_map<Group, std::string> groupNames = {
        {groupBackgroundLayer, "groupBackgroundLayer" },
        {panelBackground, "panelBackground"},
 
        //action
        { groupLinks_0,"groupLinks_0" },
        {groupGroupLinks_0, "groupGroupLinks_0"},
        {groupGroupLinks_1, "groupGroupLinks_1"},
 
        {groupArrowHeads_0, "groupArrowHeads_0"},
 
        { groupNodes_0,"groupNodes_0" },
        { groupGroupNodes_0, "groupGroupNodes_0"},
        { groupGroupNodes_1, "groupGroupNodes_1"},
 
        { groupEmpties,"groupEmpties" },
        { groupSphereEmpties,"groupSphereEmpties" },
 
        { groupColliders,"groupColliders" },
        { groupRenderSprites,"groupRenderSprites" },
 
 
        //fore
        { buttonLabels,"buttonLabels" },
    };
 
    std::string getGroupName(Group mGroup) const;
 
    void scanComponentNames(const std::string& folderPath);
 
    void setComponentNames();
};