FactoryCraft-Server/FactoryCraft/Game.cpp

#include "Game.h"

#include <File.h>
#include <Logging.h>

#include "Chat.h"
#include "Dimension.h"
#include "Entity.h"
#include "ItemEntity.h"
#include "JsonUtils.h"
#include "MultiblockTree.h"
#include "NetworkMessage.h"
#include "NoBlock.h"
#include "Player.h"
#include "PlayerHand.h"
#include "PlayerRegister.h"
#include "Quest.h"
#include "RecipieLoader.h"
#include "Server.h"
#include "TickOrganizer.h"
#include "UIController.h"
#include "WorldGenerator.h"
#include "WorldLoader.h"
#include "Timer.h"

using namespace Framework;

Framework::ConsoleHandler* Game::consoleHandler = 0;
Framework::InputLine* Game::consoleInput = 0;

Game::Game(Framework::Text name, Framework::Text worldsDir)
    : Thread(),
      name(name),
      typeRegistry(new TypeRegistry()),
      blockTypeNameFactory(new BlockTypeNameFactory()),
      itemTypeNameFactory(new ItemTypeNameFactory()),
      dimensions(new RCArray<Dimension>()),
      clients(new RCArray<GameClient>()),
      questManager(new QuestManager()),
      ticker(new TickOrganizer()),
      path((const char*)(worldsDir + "/" + name)),
      stop(0),
      tickId(0),
      nextEntityId(0),
      generator(0),
      loader(0),
      recipies(new RecipieLoader()),
      chat(0),
      playerRegister(new PlayerRegister(path)),
      uiController(new UIController()),
      totalTickTime(0),
      tickCounter(0),
      averageTickTime(0),
      ticksPerSecond(0),
      totalTime(0),
      blockTypes(0),
      blockTypeCount(0),
      itemTypes(0),
      itemTypeCount(0),
      entityTypes(0),
      entityTypeCount(0),
      multiblockStructureTypes(0),
      multiblockStructureTypeCount(0)
{
    typeRegistry->registerType(
        BlockTypeNameFactory::TYPE_ID, blockTypeNameFactory);
    typeRegistry->registerType(
        ItemTypeNameFactory::TYPE_ID, itemTypeNameFactory);

    if (!FileExists(path)) FilePathCreate(path + "/");
    File d;
    d.setFile(path + "/eid");
    if (d.exists())
    {
        d.open(File::Style::read);
        d.read((char*)&nextEntityId, 4);
        d.close();
    }
    start();
}

Game::~Game()
{
    dimensions->release();
    clients->release();
    generator->release();
    loader->release();
    chat->release();
    playerRegister->release();
    typeRegistry->release();
    uiController->release();
    recipies->release();
    for (int i = 0; i < blockTypeCount; i++)
    {
        if (blockTypes[i]) blockTypes[i]->release();
    }
    delete[] blockTypes;
    for (int i = 0; i < itemTypeCount; i++)
    {
        if (itemTypes[i]) itemTypes[i]->release();
    }
    delete[] itemTypes;
    for (int i = 0; i < entityTypeCount; i++)
    {
        if (entityTypes[i]) entityTypes[i]->release();
    }
    delete[] entityTypes;
    for (int i = 0; i < multiblockStructureTypeCount; i++)
    {
        if (multiblockStructureTypes[i]) multiblockStructureTypes[i]->release();
    }
    delete[] multiblockStructureTypes;
    questManager->release();
    ticker->release();
}

void Game::initialize()
{
    // TODO load mods libraries
    // load block types
    Framework::Logging::info() << "Loading block types";
    Framework::Array<BlockType*> blockTypeArray;
    Framework::Validator::DataValidator* validator
        = Framework::Validator::DataValidator::buildForArray()
              ->addAcceptedTypeInArray(typeRegistry->getValidator<BlockType>())
              ->removeInvalidEntries()
              ->finishArray();
    loadAllJsonsFromDirectory("data/blocks",
        [this, &blockTypeArray, validator](
            Framework::JSON::JSONValue* zValue, Framework::Text path) {
            Framework::RCArray<Framework::Validator::ValidationResult>
                validationResults;
            Framework::JSON::JSONValue* validParts
                = validator->getValidParts(zValue, &validationResults);
            for (Framework::Validator::ValidationResult* result :
                validationResults)
            {
                Framework::Logging::error() << result->getInvalidInfo();
            }
            if (validParts)
            {
                for (Framework::JSON::JSONValue* value : *validParts->asArray())
                {
                    BlockType* blockType
                        = typeRegistry->fromJson<BlockType>(value);
                    if (blockType)
                    {
                        blockTypeArray.add(blockType);
                    }
                }
                validParts->release();
            }
        });
    validator->release();
    Framework::Logging::info() << "Loaded " << blockTypeArray.getEntryCount()
                               << " block types from data/blocks";
    blockTypes = new BlockType*[2 + blockTypeArray.getEntryCount()];
    blockTypes[0] = new NoBlockBlockType(
        dynamic_cast<Block*>(NoBlock::INSTANCE.getThis()),
        "__not_yet_generated");
    blockTypes[1] = new NoBlockBlockType(
        dynamic_cast<Block*>(AirBlock::INSTANCE.getThis()), "Air");
    blockTypeCount = 2;
    for (BlockType* blockType : blockTypeArray)
    {
        blockTypes[blockTypeCount++] = blockType;
    }
    Framework::RCArray<Framework::Text>* blockTypeNames
        = new Framework::RCArray<Framework::Text>();
    for (int i = 0; i < blockTypeCount; i++)
    {
        blockTypeNames->add(new Framework::Text(blockTypes[i]->getName()));
        blockTypes[i]->setTypeId(i);
    }
    blockTypeNameFactory->setBlockTypeNames(blockTypeNames);
    Framework::Logging::info() << "Loading item types";
    Framework::Array<ItemType*> itemTypeArray;
    validator
        = Framework::Validator::DataValidator::buildForArray()
              ->addAcceptedTypeInArray(typeRegistry->getValidator<ItemType>())
              ->removeInvalidEntries()
              ->finishArray();
    loadAllJsonsFromDirectory("data/items",
        [this, &itemTypeArray, validator](
            Framework::JSON::JSONValue* zValue, Framework::Text path) {
            Framework::RCArray<Framework::Validator::ValidationResult>
                validationResults;
            Framework::JSON::JSONValue* validParts
                = validator->getValidParts(zValue, &validationResults);
            for (Framework::Validator::ValidationResult* result :
                validationResults)
            {
                Framework::Logging::error() << result->getInvalidInfo();
            }
            if (validParts)
            {
                for (Framework::JSON::JSONValue* value : *validParts->asArray())
                {
                    ItemType* itemType
                        = typeRegistry->fromJson<ItemType>(value);
                    if (itemType)
                    {
                        itemTypeArray.add(itemType);
                    }
                }
                validParts->release();
            }
        });
    validator->release();
    Framework::Logging::info() << "Loaded " << itemTypeArray.getEntryCount()
                               << " item types from data/items";
    itemTypes
        = new ItemType*[blockTypeCount + itemTypeArray.getEntryCount()];
    itemTypes[0] = new PlayerHandItemType();
    itemTypeCount = 1;
    for (int i = 0; i < blockTypeCount; i++)
    {
        ItemType* itemType = blockTypes[i]->createItemType();
        if (itemType)
        {
            itemTypes[itemTypeCount++] = itemType;
        }
    }
    for (ItemType* itemType : itemTypeArray)
    {
        itemTypes[itemTypeCount++] = itemType;
    }
    Framework::RCArray<Framework::Text>* itemTypeNames
        = new Framework::RCArray<Framework::Text>();
    for (int i = 0; i < itemTypeCount; i++)
    {
        itemTypes[i]->setTypeId(i);
        itemTypeNames->add(new Framework::Text(itemTypes[i]->getName()));
    }
    itemTypeNameFactory->setItemTypeNames(itemTypeNames);
    Framework::Logging::info() << "Loading entity types";
    Framework::Array<EntityType*> entityTypeArray;
    validator
        = Framework::Validator::DataValidator::buildForArray()
              ->addAcceptedTypeInArray(typeRegistry->getValidator<EntityType>())
              ->removeInvalidEntries()
              ->finishArray();
    loadAllJsonsFromDirectory("data/entities",
        [this, &entityTypeArray, validator](
            Framework::JSON::JSONValue* zValue, Framework::Text path) {
            Framework::RCArray<Framework::Validator::ValidationResult>
                validationResults;
            Framework::JSON::JSONValue* validParts
                = validator->getValidParts(zValue, &validationResults);
            for (Framework::Validator::ValidationResult* result :
                validationResults)
            {
                Framework::Logging::error() << result->getInvalidInfo();
            }
            if (validParts)
            {
                for (Framework::JSON::JSONValue* value : *validParts->asArray())
                {
                    EntityType* entityType
                        = typeRegistry->fromJson<EntityType>(value);
                    if (entityType)
                    {
                        entityTypeArray.add(entityType);
                    }
                }
                validParts->release();
            }
        });
    validator->release();
    Framework::Logging::info()
        << "Loaded " << entityTypeArray.getEntryCount()
        << " entity types from data/entities";
    entityTypes = new EntityType*[2 + entityTypeArray.getEntryCount()];
    entityTypes[0] = new PlayerEntityType();
    entityTypes[1] = new ItemEntityType();
    entityTypeCount = 2;
    for (EntityType* entityType : entityTypeArray)
    {
        entityTypes[entityTypeCount++] = entityType;
    }
    for (int i = 0; i < entityTypeCount; i++)
    {
        entityTypes[i]->setTypeId(i);
    }
    // initialize loaded types
    bool allInitialized = false;
    while (!allInitialized)
    {
        allInitialized = true;
        for (int i = 0; i < blockTypeCount; i++)
        {
            if (blockTypes[i] && !blockTypes[i]->initialize(this))
            {
                Framework::Logging::error()
                    << "Could not initialize Block Type '"
                    << blockTypes[i]->getName() << "'.";
                blockTypes[i]->release();
                blockTypes[i] = 0;
                allInitialized = false;
            }
        }
    }
    allInitialized = false;
    while (!allInitialized)
    {
        allInitialized = true;
        for (int i = 0; i < itemTypeCount; i++)
        {
            if (itemTypes[i] && !itemTypes[i]->initialize(this))
            {
                Framework::Logging::error()
                    << "Could not initialize Item Type '"
                    << itemTypes[i]->getName() << "'.";
                itemTypes[i]->release();
                itemTypes[i] = 0;
                allInitialized = false;
            }
        }
    }
    allInitialized = false;
    while (!allInitialized)
    {
        allInitialized = true;
        for (int i = 0; i < entityTypeCount; i++)
        {
            if (entityTypes[i] && !entityTypes[i]->initialize(this))
            {
                Framework::Logging::error()
                    << "Could not initialize Entity Type '"
                    << entityTypes[i]->getName() << "'.";
                entityTypes[i]->release();
                entityTypes[i] = 0;
                allInitialized = false;
            }
        }
    }
    for (int i = 0; i < blockTypeCount; i++)
    {
        if (blockTypes[i])
        {
            blockTypes[i]->initializeDefault();
        }
    }
    multiblockStructureTypes = new MultiblockStructureType*[1];
    multiblockStructureTypes[0] = new MultiblockTreeStructureType();
    multiblockStructureTypeCount = 1;
    // save syntax info
    Framework::FileRemove("data/syntax");
    // typeRegistry->writeSyntaxInfo("data/syntax");

    validator
        = Framework::Validator::DataValidator::buildForArray()
              ->addAcceptedTypeInArray(typeRegistry->getValidator<BlockType>())
              ->finishArray();
    Framework::JSON::JSONObject* schema = validator->getJsonSchema();
    Framework::File syntaxFile;
    syntaxFile.setFile("data/syntax/schema/blocks.json");
    syntaxFile.create();
    syntaxFile.open(Framework::File::Style::write);
    syntaxFile.write(schema->toString(), schema->toString().getLength());
    syntaxFile.close();
    schema->release();
    validator->release();

    validator
        = Framework::Validator::DataValidator::buildForArray()
              ->addAcceptedTypeInArray(typeRegistry->getValidator<ItemType>())
              ->finishArray();
    schema = validator->getJsonSchema();
    syntaxFile.setFile("data/syntax/schema/items.json");
    syntaxFile.create();
    syntaxFile.open(Framework::File::Style::write);
    syntaxFile.write(schema->toString(), schema->toString().getLength());
    syntaxFile.close();
    schema->release();
    validator->release();
    validator
        = Framework::Validator::DataValidator::buildForArray()
              ->addAcceptedTypeInArray(typeRegistry->getValidator<EntityType>())
              ->finishArray();
    schema = validator->getJsonSchema();
    syntaxFile.setFile("data/syntax/schema/entities.json");
    syntaxFile.create();
    syntaxFile.open(Framework::File::Style::write);
    syntaxFile.write(schema->toString(), schema->toString().getLength());
    syntaxFile.close();
    schema->release();
    validator->release();

    // initialize world generator and world loader
    int seed = 0;
    int index = 0;
    for (const char* n = name; *n; n++)
        seed += (int)pow((float)*n * 31, (float)++index);
    generator = new WorldGenerator(seed);
    loader = new WorldLoader();
    // load recipies
    recipies->loadRecipies("data");
    // initialize chat
    chat = new Chat();
    // load quests
    questManager->loadQuests();
}

void Game::thread()
{
    Timer waitForLock;
    Timer removeOldClients;
    Timer clientReply;
    Timer removeOldChunks;
    Timer m;
    Timer total;
    total.measureStart();
    double tickTime = 0;
    double sleepTime = 0;
    int nextTimeSync = MAX_TICKS_PER_SECOND;
    int ticktToNextUpdate = MAX_TICKS_PER_SECOND * 5;
    while (!stop)
    {
        ticktToNextUpdate--;
        if (ticktToNextUpdate <= 0)
        {
            questManager->processEvent(new QuestEventTimeUpdate());
            ticktToNextUpdate = MAX_TICKS_PER_SECOND * 5;
        }
        m.measureStart();
        ticker->nextTick();
        actionsCs.lock();
        while (actions.getEntryCount() > 0)
        {
            actions.get(0)();
            actions.remove(0);
        }
        actionsCs.unlock();
        Array<int> removed;
        double waitTotal = 0;
        waitForLock.measureStart();
        cs.lock();
        waitForLock.measureEnd();
        waitTotal += waitForLock.getSekunden();
        removeOldClients.measureStart();
        int index = 0;
        nextTimeSync--;
        for (auto player : *clients)
        {
            if (!player->isOnline())
            {
                uiController->removePlayerDialogs(player->zEntity()->getId());
                chat->removeObserver(player->zEntity()->getId());
                chat->broadcastMessage(
                    Framework::Text(player->zEntity()->getName())
                        + " left the game.",
                    Chat::CHANNEL_INFO);
                File pFile;
                pFile.setFile(path + "/player/"
                               + getPlayerId(player->zEntity()->getName()));
                pFile.create();
                if (pFile.open(File::Style::write))
                {
                    zEntityType(EntityTypeEnum::PLAYER)
                        ->saveEntity(player->zEntity(), &pFile);
                }
                pFile.close();
                Dimension* dim
                    = zDimension(player->zEntity()->getDimensionId());
                Chunk* chunk = dim->zChunk(
                    getChunkCenter((int)player->zEntity()->getLocation().x,
                        (int)player->zEntity()->getLocation().y));
                if (chunk)
                {
                    chunk->onEntityLeaves(player->zEntity(), 0);
                }
                dim->removeEntity(player->zEntity()->getId());
                removed.add(index, 0);
                dim->removeSubscriptions(player->zEntity());
            }
            else
            {
                if (nextTimeSync <= 0 && player->zEntity())
                {
                    Dimension* zDim
                        = zDimension(player->zEntity()->getDimensionId());
                    if (zDim)
                    {
                        NetworkMessage* msg = new NetworkMessage();
                        msg->syncTime(zDim->getCurrentDayTime(),
                            zDim->getNightDuration(),
                            zDim->getNightTransitionDuration(),
                            zDim->getDayDuration());
                        player->sendResponse(msg);
                    }
                }
            }
            index++;
        }
        if (nextTimeSync <= 0)
        {
            consoleHandler->print();
            nextTimeSync = MAX_TICKS_PER_SECOND;
        }
        for (auto i : removed)
            clients->remove(i);
        removeOldClients.measureEnd();
        for (Dimension* dim : *dimensions)
        {
            dim->tick();
        }
        cs.unlock();
        clientReply.measureStart();
        for (auto client : *clients)
            client->reply();
        clientReply.measureEnd();
        waitForLock.measureStart();
        cs.lock();
        waitForLock.measureEnd();
        waitTotal += waitForLock.getSekunden();
        removeOldChunks.measureStart();
        for (auto dim : *dimensions)
            dim->removeOldChunks();
        removeOldChunks.measureEnd();
        cs.unlock();
        m.measureEnd();
        double sec = m.getSekunden();
        tickCounter++;
        totalTickTime += sec;
        sleepTime += 1.0 / MAX_TICKS_PER_SECOND - tickTime;
        if (sleepTime > 0)
        {
            Sleep((int)(sleepTime * 1000));
        }
        total.measureEnd();
        total.measureStart();
        tickTime = total.getSekunden();
        totalTime += tickTime;
        if (totalTime >= 1)
        {
            averageTickTime = totalTickTime / tickCounter;
            ticksPerSecond = tickCounter;
            totalTickTime = 0;
            tickCounter = 0;
            totalTime = 0;
        }
        else if (sec > 1)
        {
            Framework::Logging::warning()
                << "tick needed " << sec
                << " seconds. The game will run sower then normal.\n";
            Framework::Logging::trace()
                << "waiting: " << waitTotal
                << "\nremoveOldClients: " << removeOldClients.getSekunden()
                << "\nclientReply: " << clientReply.getSekunden()
                << "\nremoveOldChunks:" << removeOldChunks.getSekunden();
        }
    }
    save();
    generator->exitAndWait();
    loader->exitAndWait();
    ticker->exitAndWait();
    for (Dimension* dim : *dimensions)
        dim->requestStopAndWait();
    Framework::Logging::info() << "Game thread exited";
}

void Game::api(Framework::InMemoryBuffer* zRequest, GameClient* zOrigin)
{
    char type;
    zRequest->read(&type, 1);
    NetworkMessage* response = new NetworkMessage();
    switch (type)
    {
    case 1: // world
        {
            Dimension* dim = zDimension(zOrigin->zEntity()->getDimensionId());
            if (!dim)
            {
                dim = generator->createDimension(
                    zOrigin->zEntity()->getDimensionId());
                if (!dim)
                {
                    Framework::Logging::error()
                        << "could not create dimension "
                        << zOrigin->zEntity()->getDimensionId()
                        << ". No Factory was provided.";
                    return;
                }
                addDimension(dim);
            }
            dim->api(zRequest, response, zOrigin->zEntity());
            break;
        }
    case 2: // player
        zOrigin->zEntity()->playerApi(zRequest, response);
        break;
    case 3: // entity
        {
            int id;
            zRequest->read((char*)&id, 4);
            for (Dimension* dim : *dimensions)
            {
                Entity* entity = dim->zEntity(id);
                if (entity)
                {
                    entity->api(zRequest, response, zOrigin->zEntity());
                    break;
                }
            }
            break;
        }
    case 4:
        { // inventory
            bool isEntity;
            zRequest->read((char*)&isEntity, 1);
            Inventory* target;
            if (isEntity)
            {
                int id;
                zRequest->read((char*)&id, 4);
                target = zEntity(id);
            }
            else
            {
                int dim;
                Vec3<int> pos;
                zRequest->read((char*)&dim, 4);
                zRequest->read((char*)&pos.x, 4);
                zRequest->read((char*)&pos.y, 4);
                zRequest->read((char*)&pos.z, 4);
                target = zBlockAt(pos, dim, 0);
            }
            if (target)
                target->inventoryApi(zRequest, response, zOrigin->zEntity());
            break;
        }
    case 5:
        { // crafting uiml request
            int id;
            zRequest->read((char*)&id, 4);
            Framework::XML::Element* uiml = recipies->getCrafingUIML(id);
            Text dialogId = "crafting_";
            dialogId += id;
            uiController->addDialog(
                new UIDialog(dialogId, zOrigin->zEntity()->getId(), uiml));
            break;
        }
    case 6:
        { // chat message
            chat->chatApi(zRequest, zOrigin->zEntity(), response);
            break;
        }
    case 7: // other dimension
        {
            int dimensionId;
            zRequest->read((char*)&dimensionId, 4);
            Dimension* dim = zDimension(dimensionId);
            if (dim)
            {
                dim->api(zRequest, response, zOrigin->zEntity());
            }
            break;
        }
    case 8: // ui message
        {
            uiController->api(zRequest, response, zOrigin->zEntity());
            break;
        }
    default:
        Framework::Logging::warning()
            << "received unknown api request in game with type " << (int)type;
    }
    if (!response->isEmpty())
    {
        if (response->isBroadcast())
            broadcastMessage(response);
        else
            zOrigin->sendResponse(response);
    }
    else
    {
        response->release();
    }
}

void Game::updateLightning(int dimensionId, Vec3<int> location)
{
    Dimension* zDim = zDimension(dimensionId);
    if (zDim) zDim->updateLightning(location);
}

void Game::updateLightningWithoutWait(int dimensionId, Vec3<int> location)
{
    Dimension* zDim = zDimension(dimensionId);
    if (zDim) zDim->updateLightningWithoutWait(location);
}

void Game::broadcastMessage(NetworkMessage* response)
{
    for (auto client : *clients)
        client->sendResponse(
            dynamic_cast<NetworkMessage*>(response->getThis()));
    response->release();
}

void Game::sendMessage(NetworkMessage* response, Entity* zTargetPlayer)
{
    for (auto client : *clients)
    {
        if (client->zEntity()->getId() == zTargetPlayer->getId())
        {
            client->sendResponse(response);
            return;
        }
    }
    response->release();
}

bool Game::checkPlayer(Framework::Text name, Framework::Text secret)
{
    if (playerRegister->checkSecret(name, secret))
        return 1;
    else
    {
        Framework::Logging::warning()
            << "player " << name.getText()
            << " tryed to connect with an invalid secret.";
        return 0;
    }
}

bool Game::existsPlayer(Framework::Text name)
{
    return playerRegister->hasPlayer(name);
}

Framework::Text Game::createPlayer(Framework::Text name)
{
    return playerRegister->addPlayer(name);
}

GameClient* Game::addPlayer(FCKlient* client, Framework::Text name)
{
    cs.lock();
    int id = playerRegister->getPlayerId(name);
    File pFile;
    pFile.setFile(path + "/player/" + id);
    Player* player;
    bool isNew = 0;
    if (!pFile.exists() || !pFile.open(File::Style::read))
    {
        player = (Player*)zEntityType(EntityTypeEnum::PLAYER)
                     ->createEntityAt(
                         Vec3<float>(0.5, 0.5, 0), DimensionEnum::OVERWORLD);
        player->setName(name);
        isNew = 1;
    }
    else
    {
        player
            = (Player*)zEntityType(EntityTypeEnum::PLAYER)->loadEntity(&pFile);
        pFile.close();
    }
    if (player->getId() >= nextEntityId)
    {
        nextEntityId = player->getId() + 1;
    }
    GameClient* gameClient = new GameClient(player, client);
    gameClient->sendTypes();
    clients->add(gameClient);
    if (!zDimension(player->getDimensionId()))
    {
        Dimension* dim = generator->createDimension(player->getDimensionId());
        if (!dim)
        {
            Framework::Logging::error() << "could not create dimension "
                                        << (int)player->getDimensionId()
                                        << ". No Factory was provided.";
            return 0;
        }
        NetworkMessage* msg = new NetworkMessage();
        msg->syncTime(dim->getCurrentDayTime(),
            dim->getNightDuration(),
            dim->getNightTransitionDuration(),
            dim->getDayDuration());
        gameClient->sendResponse(msg);
        this->addDimension(dim);
    }
    // subscribe the new player as an observer of the new chunk
    Dimension* dim = zDimension(player->getDimensionId());
    InMemoryBuffer* buffer = new InMemoryBuffer();
    buffer->write("\0", 1);
    Point center = getChunkCenter(
        (int)player->getPosition().x, (int)player->getPosition().y);
    buffer->write((char*)&center.x, 4);
    buffer->write((char*)&center.y, 4);
    buffer->write("\0", 1);
    dim->api(buffer, 0, player);
    buffer->release();
    while (!dim->zChunk(getChunkCenter(
        (int)player->getPosition().x, (int)player->getPosition().y)))
    {
        cs.unlock();
        Sleep(1000);
        cs.lock();
    }
    if (isNew)
    {
        Either<Block*, int> b = BlockTypeEnum::AIR;
        int h = WORLD_HEIGHT;
        while (((b.isA() && (!(Block*)b || ((Block*)b)->isPassable()))
                   || (b.isB() && zBlockType(b)->zDefault()->isPassable()))
               && h > 0)
            b = zBlockAt({(int)player->getPosition().x,
                             (int)player->getPosition().y,
                             --h},
                player->getDimensionId(),
                0);
        player->setPosition(
            {player->getPosition().x, player->getPosition().y, (float)h + 2.f});
    }
    dim->addEntity(player);
    chat->addObserver(gameClient->zEntity()->getId());
    chat->broadcastMessage(name + " joined the game.", Chat::CHANNEL_INFO);
    cs.unlock();
    return dynamic_cast<GameClient*>(gameClient->getThis());
}

bool Game::isChunkLoaded(int x, int y, int dimension) const
{
    Dimension* dim = zDimension(dimension);
    return (dim && dim->hasChunck(x, y));
}

bool Game::doesChunkExist(int x, int y, int dimension)
{
    cs.lock();
    bool result = isChunkLoaded(x, y, dimension)
               || loader->existsChunk(x, y, dimension);
    cs.unlock();
    return result;
}

void Game::blockTargetChanged(Block* zBlock)
{
    for (GameClient* client : *this->clients)
    {
        if (client->zEntity()->zTarget()
            && client->zEntity()->zTarget()->isBlock(
                zBlock->getPos(), NO_DIRECTION))
        {
            client->zEntity()->onTargetChange();
        }
    }
}

void Game::entityTargetChanged(Entity* zEntity)
{
    for (GameClient* client : *this->clients)
    {
        if (client->zEntity()->zTarget()
            && client->zEntity()->zTarget()->isEntity(zEntity->getId()))
        {
            client->zEntity()->onTargetChange();
        }
    }
}

void Game::spawnItem(
    Framework::Vec3<float> location, int dimensionId, Item* stack)
{
    spawnItem(location, dimensionId, new ItemStack(stack, 1));
}

void Game::spawnItem(
    Framework::Vec3<float> location, int dimensionId, ItemStack* stack)
{
    if (stack->getSize() == 0)
    {
        Logging::error() << "spawn item was called with empty stack";
        return;
    }
    ItemEntity* itemEntity = (ItemEntity*)zEntityType(EntityTypeEnum::ITEM)
                                 ->createEntityAt(location, dimensionId);
    itemEntity->unsaveAddItem(stack, NO_DIRECTION, 0);
    if (stack->getSize() > 0)
    {
        Logging::error() << "could not add item to item entity";
    }
    stack->release();
    Dimension* dim = zDimension(dimensionId);
    if (dim)
    {
        Point center = Game::getChunkCenter(
            (int)itemEntity->getLocation().x, (int)itemEntity->getLocation().y);
        dim->zChunk(center)
            ->onEntityEnters(itemEntity, 0);
        itemEntity->setLastChunk(dimensionId, center);
        dim->addEntity(itemEntity);
    }
    else
    {
        Framework::Logging::error()
            << "could not spawn item entity in dimension " << dimensionId
            << ". Dimension not loaded.";
        itemEntity->release();
        return;
    }
}

Framework::Either<Block*, int> Game::zBlockAt(
    Framework::Vec3<int> location, int dimension, OUT Chunk** zChunk) const
{
    Dimension* dim = zDimension(dimension);
    if (dim) return dim->zBlock(location, zChunk);
    return 0;
}

Block* Game::zRealBlockInstance(
    Framework::Vec3<int> location, int dimension) const
{
    Dimension* dim = zDimension(dimension);
    if (dim) return dim->zRealBlockInstance(location);
    return 0;
}

const Block* Game::zConstBlock(
    Framework::Vec3<int> location, int dimension) const
{
    Dimension* dim = zDimension(dimension);
    if (dim) return dim->zBlockOrDefault(location);
    return 0;
}

int Game::getBlockType(Framework::Vec3<int> location, int dimension) const
{
    Dimension* dim = zDimension(dimension);
    if (dim) return dim->getBlockType(location);
    return 0;
}

Dimension* Game::zDimension(int id) const
{
    for (auto dim : *dimensions)
    {
        if (dim->getDimensionId() == id) return dim;
    }
    return 0;
}

Framework::Point Game::getChunkCenter(int x, int y)
{
    return Point(((x < 0 ? x + 1 : x) / CHUNK_SIZE) * CHUNK_SIZE
                     + (x < 0 ? -CHUNK_SIZE : CHUNK_SIZE) / 2,
        ((y < 0 ? y + 1 : y) / CHUNK_SIZE) * CHUNK_SIZE
            + (y < 0 ? -CHUNK_SIZE : CHUNK_SIZE) / 2);
}

Area Game::getChunckArea(Point center) const
{
    return {center.x - CHUNK_SIZE / 2,
        center.y - CHUNK_SIZE / 2,
        center.x + CHUNK_SIZE / 2 - 1,
        center.y + CHUNK_SIZE / 2 - 1,
        0};
}

Framework::Text Game::getWorldDirectory() const
{
    return path;
}

void Game::requestArea(Area area)
{
    generator->requestGeneration(area);
    loader->requestLoading(area);
}

void Game::save() const
{
    questManager->saveQuests();
    File d;
    d.setFile(path + "/eid");
    d.open(File::Style::write);
    d.write((char*)&nextEntityId, 4);
    d.close();
    playerRegister->save();
    for (auto dim : *dimensions)
        dim->save(path);
    chat->save();
    Framework::Logging::info() << "Game was saved";
}

void Game::requestStop()
{
    stop = 1;
    waitForThread(1000000);
}

void Game::addDimension(Dimension* d)
{
    dimensions->add(d);
}

int Game::getNextEntityId()
{
    neidl.lock();
    int result = nextEntityId++;
    neidl.unlock();
    return result;
}

WorldGenerator* Game::zGenerator() const
{
    return generator;
}

Game* Game::INSTANCE = 0;

void Game::initialize(Framework::Text name, Framework::Text worldsDir)
{
    if (!Game::INSTANCE)
    {
        Game::INSTANCE = new Game(name, worldsDir);
        Game::INSTANCE->initialize();
    }
}

Entity* Game::zEntity(int id, int dimensionId) const
{
    Dimension* d = zDimension(dimensionId);
    if (d) return d->zEntity(id);
    return 0;
}

Entity* Game::zEntity(int id) const
{
    for (Dimension* d : *dimensions)
    {
        Entity* e = d->zEntity(id);
        if (e) return e;
    }
    // for new players that are currently loading
    for (GameClient* client : *clients)
    {
        if (client->zEntity()->getId() == id)
        {
            return client->zEntity();
        }
    }
    return 0;
}

Entity* Game::zNearestEntity(int dimensionId,
    Framework::Vec3<float> pos,
    std::function<bool(Entity*)> filter) const
{
    Dimension* d = zDimension(dimensionId);
    if (!d) return 0;
    return d->zNearestEntity(pos, filter);
}

RecipieLoader* Game::zRecipies() const
{
    return recipies;
}

void Game::doLater(std::function<void()> action)
{
    actionsCs.lock();
    actions.add(action);
    actionsCs.unlock();
}

TickOrganizer* Game::zTickOrganizer() const
{
    return ticker;
}

Chat* Game::zChat() const
{
    return chat;
}

Player* Game::zPlayerByName(const char* name) const
{
    for (GameClient* client : *clients)
    {
        if (strcmp(client->zEntity()->getName(), name) == 0)
        {
            return client->zEntity();
        }
    }
    return 0;
}

void Game::listPlayerNames(Framework::RCArray<Framework::Text>& names)
{
    for (GameClient* client : *clients)
    {
        names.add(new Framework::Text(client->zEntity()->getName()));
    }
}

TypeRegistry* Game::zTypeRegistry() const
{
    return typeRegistry;
}

int Game::getPlayerId(const char* name) const
{
    return playerRegister->getPlayerId(name);
}

QuestManager* Game::zQuestManager() const
{
    return questManager;
}

UIController* Game::zUIController() const
{
    return uiController;
}

double Game::getAverageTickTime() const
{
    return averageTickTime;
}

int Game::getTicksPerSecond() const
{
    return ticksPerSecond;
}

int Game::getPlayerCount() const
{
    return clients->getEntryCount();
}

int Game::getChunkCount() const
{
    int result = 0;
    for (Dimension* dim : *dimensions)
    {
        result += dim->getChunkCount();
    }
    return result;
}

const BlockType* Game::zBlockType(int id) const
{
    return blockTypes[id];
}

const ItemType* Game::zItemType(int id) const
{
    return itemTypes[id];
}

const EntityType* Game::zEntityType(int id) const
{
    return entityTypes[id];
}

int Game::getEntityTypeId(const char* name) const
{
    for (int i = 0; i < entityTypeCount; i++)
    {
        if (entityTypes[i]
            && Framework::Text(entityTypes[i]->getName()).isEqual(name))
        {
            return i;
        }
    }
    Framework::Logging::warning()
        << "no entity type with name '" << name << "' found.";
    return -1;
}

int Game::getBlockTypeId(const char* name) const
{
    for (int i = 0; i < blockTypeCount; i++)
    {
        if (blockTypes[i]
            && Framework::Text(blockTypes[i]->getName()).isEqual(name))
        {
            return i;
        }
    }
    Framework::Logging::warning()
        << "no block type with name '" << name << "' found.";
    return -1;
}

int Game::getItemTypeId(const char* name) const
{
    for (int i = 0; i < itemTypeCount; i++)
    {
        if (itemTypes[i]
            && Framework::Text(itemTypes[i]->getName()).isEqual(name))
        {
            return i;
        }
    }
    Framework::Logging::warning()
        << "no item type with name '" << name << "' found.";
    return -1;
}

int Game::getBlockTypeCount() const
{
    return blockTypeCount;
}

int Game::getItemTypeCount() const
{
    return itemTypeCount;
}

int Game::getEntityTypeCount() const
{
    return entityTypeCount;
}

const MultiblockStructureType* Game::zMultiblockStructureType(int id) const
{
    return multiblockStructureTypes[id];
}

int Game::getMultiblockStructureTypeCount() const
{
    return multiblockStructureTypeCount;
}