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#include "util.h"

#include <QtNetwork/QTcpSocket>

namespace Util
{
  Transmission::map_t createUninitialisedMap()
  {
    Transmission::map_t map;
    map = new Transmission::field_t*[Constants::map_size.width];
    for (unsigned int i = 0; i < Constants::map_size.width; ++i)
      map[i] = new Transmission::field_t[Constants::map_size.height];
    return map;
  }

  Transmission::map_t createEmptyMap()
  {
    Transmission::map_t map = createUninitialisedMap();
    for (unsigned int x = 0; x < Constants::map_size.width; ++x)
    {
      for (unsigned int y = 0; y < Constants::map_size.height; ++y)
      {
        Transmission::field_t &cur = map[x][y];
        cur = Transmission::none;
      }
    }
    return map;
  }

  // temporary
  Transmission::map_t createDemoMap()
  {
    Transmission::map_t map = createEmptyMap();

    const char *tmpl[] = {
      "             #      #              ",
      " #### ###### # #### # # ###### ### ",
      "             #               #     ",
      " # ##### # #   #   # # ### #   # # ",
      " #   #   # # # # # # # #   ##  # # ",
      " #   #   # #   # # # # ### # # # # ",
      " # # # # # # # #   # # #   #  ## # ",
      " #   #   ###   ##### # ### #   # # ",
      " ###                             # ",
      " #    # ### #### #### #### #####   ",
      "   #### #   #..# #..# #..#   #   # ",
      " # #    ### #..# #..# #### # # # # ",
      " #    # #   #..# #..# #          # ",
      " # #### #   #### #### #  # ##### # ",
      "          #              #         ",
      " #### ###### # ##### # ####### ### ",
      "             #       #             "
    };

    for (unsigned int x = 0; x < Constants::map_size.width; ++x)
    {
      for (unsigned int y = 0; y < Constants::map_size.height; ++y)
      {
        Transmission::field_t &cur = map[x][y];
        cur = Transmission::none;
        if (tmpl[y][x] == '#')
          cur |= Color::none | Transmission::block;
        /* this is a simple hack to create areas where no
         * autoplaced points will be placed (see below)
         */
        else if (tmpl[y][x] == '.')
          cur |= Transmission::point;
      }
    }

    map[0][0] |= Transmission::bonuspoint;
    map[1][0] |= Color::red   | Transmission::pacman | Transmission::direction_right;
    map[23][0] = Color::blue  | Transmission::pacman | Transmission::direction_none;
    map[24][0] = Color::green | Transmission::pacman | Transmission::direction_none;

    /* auto place normal points*/
    for (unsigned int x = 0; x < Constants::map_size.width; ++x)
    {
      for (unsigned int y = 0; y < Constants::map_size.height; ++y)
      {
        Transmission::field_t &cur = map[x][y];
        if (cur == Transmission::none)
          cur |= Transmission::point;
        else if (cur == Transmission::point)
          cur = Transmission::none;
      }
    }

    return map;
  }

  Transmission::field_t actorMovementToTransmission(Actor::Movement mov, Transmission::field_t def)
  {
    switch (mov)
    {
    case Actor::None:
      return Transmission::direction_none;
      break;
    case Actor::Left:
      return Transmission::direction_left;
      break;
    case Actor::Right:
      return Transmission::direction_right;
      break;
    case Actor::Up:
      return Transmission::direction_up;
      break;
    case Actor::Down:
      return Transmission::direction_down;
      break;
    default:
      return def;
      break;
    }
    return def;
  }

  Actor::Movement transmissionMovementToActor(Transmission::field_t field, Actor::Movement def)
  {
    switch (field)
    {
    case Transmission::direction_none:
      return Actor::None;
      break;
    case Transmission::direction_left:
      return Actor::Left;
      break;
    case Transmission::direction_right:
      return Actor::Right;
      break;
    case Transmission::direction_up:
      return Actor::Up;
      break;
    case Transmission::direction_down:
      return Actor::Down;
      break;
    default:
      return def;
      break;
    }
    return def;
  }

  void QByteArrayToStdString(const QByteArray& arr, std::string& str)
  {
    // TODO: normal conversion to std::string won't work,
    // probably due to \0-bytes.
    //std::string dataStr = std::string(data.constData());
    //std::string dataStr = QString(data).toStdString();
    for (int i=0; i<arr.size(); ++i)
      str += arr[i];
  }

  void sendPacket(const ::google::protobuf::Message& packet, QTcpSocket *socket)
  {
    std::string dataStr = packet.SerializeAsString();
    const char *data = dataStr.c_str();
    sendPacket(data, dataStr.length(), socket);
  }

  void sendPacket(const char *data, unsigned int length, QTcpSocket *socket)
  {
    unsigned int bytesWritten = socket->write(data, length);
    if (bytesWritten != length)
    {
      qDebug() << "[sendPacket] Not all data has been sent."
          << "written=" << bytesWritten << ", length=" << length;
    }
    Q_ASSERT(bytesWritten == length);
    socket->flush();
  }
}