source: code/branches/network/src/core/KeyBinder.cc @ 1426

/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *                    > www.orxonox.net <
 *
 *
 *   License notice:
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation; either version 2
 *   of the License, or (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *   Author:
 *      Reto Grieder
 *   Co-authors:
 *      ...
 *
 */

/**
 @file
 @brief Implementation of the different input handlers.
 */

#include "KeyBinder.h"
#include <fstream>
#include "util/Convert.h"
#include "util/SubString.h"
#include "util/String.h"
#include "Debug.h"
#include "ConfigValueIncludes.h"
#include "CoreIncludes.h"
#include "CommandExecutor.h"
#include "Executor.h"

namespace orxonox
{
  // ###############################
  // ###  BufferedParamCommand   ###
  // ###############################

  /**
  * Executes a buffered command. This is used for commands with additional
  * parameters.
  * @return True if command execution was successful or value was zero.
  */
  bool BufferedParamCommand::execute()
  {
    if (nValuesAdded_)
    {
      BufferedParamCommand& cmd = *this;
      cmd.evaluation_.setEvaluatedParameter(cmd.paramIndex_, cmd.value_);
      // reset
      cmd.nValuesAdded_ = 0;
      cmd.value_ = 0;
      return CommandExecutor::execute(cmd.evaluation_);
    }
    else
      return true;
  }

  // ###############################
  // #####    SimpleCommand    #####
  // ###############################

  /**
  * Executes a simple command with no additional paramters.
  * @return True if command execution was successful, false otherwise.
  */
  bool SimpleCommand::execute(float abs, float rel)
  {
    return CommandExecutor::execute(evaluation_);
  }

  // ###############################
  // #####    ParamCommand     #####
  // ###############################

  /**
  * Executes a parameter command. The commmand string is not directly executed,
  * but instead stored in a buffer list so that values can be combined.
  * @return Always true.
  */
  bool ParamCommand::execute(float abs, float rel)
  {
    BufferedParamCommand& cmd = *paramCommand_;
    // command has an additional parameter
    if (bRelative_)
    {
      if (rel != 0.0f)
      {
        // we have to calculate a relative movement.
        // paramModifier_ says how much one keystroke is
        cmd.value_ += paramModifier_ * rel;
      }
    }
    else if (abs != 0.0f)
    {
      // Usually, joy sticks create 'noise' (they return values if they're in 0 position)
      // and normally this is caught in tickInput(), but that threshold cannot be to high
      // in order to preserve accuracy. Instead, we have to catch the problem here. An example:
      // Someone only uses buttons with an active joystick. The joy stick value could then
      // be 0.05 for instance and the the key value 1. Without handling the problem, the final
      // value would be computed to (1+0.05)/2=0.5025 which is not what the user expects.
      float absQ = abs * abs;
      float valueQ = cmd.value_ * cmd.value_;
      if (absQ > 50.0f * valueQ) // ease up comparison by using quadratics
      {
        cmd.value_ = abs * paramModifier_;
        cmd.nValuesAdded_ = 1;
      }
      else if (absQ * 50.0f < valueQ)
      {
        // abs is too small, we just don't do anything
      }
      else
      {
        // we have to calculate the absolute position of the axis.
        // Since there might be another axis that is affected, we have to wait and
        // store the result in a temporary place
        cmd.value_ = (cmd.value_ * cmd.nValuesAdded_ + paramModifier_ * abs) / ++cmd.nValuesAdded_;
      }
    }
    return true;
  }

  // ###############################
  // #####       Button        #####
  // ###############################

  void Button::clear()
  {
    for (unsigned int j = 0; j < 3; j++)
    {
      if (nCommands_[j])
      {
        // delete all commands and the command pointer array
        for (unsigned int i = 0; i < nCommands_[j]; i++)
          delete commands_[j][i];
        delete[] commands_[j];
        commands_[j] = 0;
        nCommands_[j] = 0;
      }
      else
      {
        commands_[j] = 0;
      }
    }
  }

  void Button::parse(std::vector<BufferedParamCommand*>& paramCommandBuffer)
  {
    if (isEmpty(bindingString_))
    {
      clear();
      return;
    }

    // use std::vector for a temporary dynamic array
    std::vector<BaseCommand*> commands[3];


    // separate the commands
    SubString commandStrings(bindingString_, "|", SubString::WhiteSpaces, false,
        '\\', false, '"', false, '(', ')', false, '\0');

    for (unsigned int iCommand = 0; iCommand < commandStrings.size(); iCommand++)
    {
      if (commandStrings[iCommand] != "")
      {
        SubString tokens(commandStrings[iCommand], " ", SubString::WhiteSpaces, false,
            '\\', false, '"', false, '(', ')', false, '\0');
        
        unsigned int iToken = 0;

        // for real axes, we can feed a ButtonThreshold argument as entire command
        if (getLowercase(tokens[0]) == "buttonthreshold")
        {
          if (tokens.size() == 1)
            continue;
          // may fail, but doesn't matter
          convertValue(&buttonThreshold_, tokens[1]);
          continue;
        }

        // first argument can be OnPress, OnHold OnRelease or nothing
        KeybindMode::Enum mode = KeybindMode::None;
        if (getLowercase(tokens[iToken]) == "onpress")
          mode = KeybindMode::OnPress,   iToken++;
        if (getLowercase(tokens[iToken]) == "onrelease")
          mode = KeybindMode::OnRelease, iToken++;
        if (getLowercase(tokens[iToken]) == "onhold")
          mode = KeybindMode::OnHold,    iToken++;

        if (iToken == tokens.size())
          continue;

        // second argument can be the amplitude for the case it as an axis command
        // default amplitude is 1.0f
        float paramModifier = 1.0f;
        if (getLowercase(tokens[iToken]) == "scale")
        {
          iToken++;
          if (iToken == tokens.size() || !convertValue(&paramModifier, tokens[iToken]))
          {
            COUT(2) << "Error while parsing key binding " << name_
                << ". Numeric expression expected afer 'AxisAmp', switching to default value" << std::endl;
            if (iToken == tokens.size())
              continue;
          }
          iToken++;
        }

        // no more arguments expected except for the actual command
        if (iToken == tokens.size())
          continue;

        std::string commandStr;
        while (iToken != tokens.size())
          commandStr += tokens[iToken++] + " ";

        // evaluate the command
        CommandEvaluation eval = CommandExecutor::evaluate(commandStr);
        if (!eval.isValid())
          continue;

        // check for param command
        int paramIndex = eval.getEvaluatedExecutor()->getAxisParamIndex();
        if (paramIndex >= 0)
        {
          // parameter supported command
          ParamCommand* cmd = new ParamCommand();
          cmd->paramModifier_ = paramModifier;
          cmd->bRelative_ = eval.getEvaluatedExecutor()->getIsAxisRelative();

          // add command to the buffer if not yet existing
          for (unsigned int iParamCmd = 0; iParamCmd < paramCommandBuffer.size(); iParamCmd++)
          {
            if (getLowercase(paramCommandBuffer[iParamCmd]->evaluation_.getCommandString())
                == getLowercase(commandStr))
            {
              // already in list
              cmd->paramCommand_ = paramCommandBuffer[iParamCmd];
              break;
            }
          }
          if (cmd->paramCommand_ == 0)
          {
            cmd->paramCommand_ = new BufferedParamCommand();
            paramCommandBuffer.push_back(cmd->paramCommand_);
            cmd->paramCommand_->evaluation_ = eval;
            cmd->paramCommand_->paramIndex_ = paramIndex;
          }


          // we don't know whether this is an actual axis or just a button
          if (mode == KeybindMode::None)
          {
            if (!addParamCommand(cmd))
            {
              mode = eval.getEvaluatedExecutor()->getKeybindMode();
              commands[mode].push_back(cmd);
            }
          }
        }
        else
        {
          SimpleCommand* cmd = new SimpleCommand();
          cmd->evaluation_ = eval;

          if (mode == KeybindMode::None)
            mode = eval.getEvaluatedExecutor()->getKeybindMode();

          commands[mode].push_back(cmd);
        }
      }
    }

    for (unsigned int j = 0; j < 3; j++)
    {
      nCommands_[j] = commands[j].size();
      if (nCommands_[j])
      {
        commands_[j] = new BaseCommand*[nCommands_[j]];
        for (unsigned int i = 0; i < commands[j].size(); i++)
          commands_[j][i] = commands[j][i];
      }
      else
        commands_[j] = 0;
    }
  }

  bool Button::execute(KeybindMode::Enum mode, float abs, float rel)
  {
    // execute all the parsed commands in the string
    for (unsigned int iCommand = 0; iCommand < nCommands_[mode]; iCommand++)
      commands_[mode][iCommand]->execute(abs, rel);
    return true;
  }

  // ###############################
  // #####      HalfAxis       #####
  // ###############################

  void HalfAxis::clear()
  {
    Button::clear();
    if (nParamCommands_)
    {
      // delete all commands and the command pointer array
      for (unsigned int i = 0; i < nParamCommands_; i++)
        delete paramCommands_[i];
      delete[] paramCommands_;
    }
    else
    {
      nParamCommands_ = 0; nParamCommands_ = 0;
    }
  }
  
  bool HalfAxis::addParamCommand(ParamCommand* command)
  {
    ParamCommand** cmds = paramCommands_;
    paramCommands_ = new ParamCommand*[++nParamCommands_];
    unsigned int i;
    for (i = 0; i < nParamCommands_ - 1; i++)
      paramCommands_[i] = cmds[i];
    paramCommands_[i] = command;
    delete[] cmds;
    return true;
  }

  bool HalfAxis::execute()
  {
    bool success = true;
    for (unsigned int i = 0; i < nParamCommands_; i++)
      success = success && paramCommands_[i]->execute(absVal_, relVal_);
    return success;
  }


  // ###############################
  // ######     KeyBinder     ######
  // ###############################

  /**
    @brief Constructor that does as little as necessary.
  */
  KeyBinder::KeyBinder() : deriveTime_(0.0f)
  {
    mouseRelative_[0] = 0;
    mouseRelative_[1] = 0;
    mousePosition_[0] = 0;
    mousePosition_[1] = 0;

    RegisterObject(KeyBinder);

    // keys
    std::string keyNames[] = {
      "UNASSIGNED",
      "ESCAPE",
      "1", "2", "3", "4", "5", "6", "7", "8", "9", "0",
      "MINUS", "EQUALS", "BACK", "TAB",
      "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P",
      "LBRACKET", "RBRACKET",
      "RETURN", "LCONTROL",
      "A", "S", "D", "F", "G", "H", "J", "K", "L",
      "SEMICOLON", "APOSTROPHE", "GRAVE",
      "LSHIFT", "BACKSLASH",
      "Z", "X", "C", "V", "B", "N", "M",
      "COMMA", "PERIOD", "SLASH",
      "RSHIFT",
      "MULTIPLY",
      "LMENU",
      "SPACE",
      "CAPITAL",
      "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10",
      "NUMLOCK", "SCROLL",
      "NUMPAD7", "NUMPAD8", "NUMPAD9",
      "SUBTRACT",
      "NUMPAD4", "NUMPAD5", "NUMPAD6",
      "ADD",
      "NUMPAD1", "NUMPAD2", "NUMPAD3", "NUMPAD0",
      "DECIMAL",
      "","",
      "OEM_102",
      "F11", "F12",
      "","","","","","","","","","","",
      "F13", "F14", "F15",
      "","","","","","","","","","",
      "KANA",
      "","",
      "ABNT_C1",
      "","","","","",
      "CONVERT",
      "",
      "NOCONVERT",
      "",
      "YEN",
      "ABNT_C2",
      "","","","","","","","","","","","","","",
      "NUMPADEQUALS",
      "","",
      "PREVTRACK",
      "AT",
      "COLON", "UNDERLINE",
      "KANJI",
      "STOP",
      "AX",
      "UNLABELED",
      "NEXTTRACK",
      "","",
      "NUMPADENTER",
      "RCONTROL",
      "","",
      "MUTE",
      "CALCULATOR",
      "PLAYPAUSE",
      "",
      "MEDIASTOP",
      "","","","","","","","","",
      "VOLUMEDOWN",
      "",
      "VOLUMEUP",
      "",
      "WEBHOME",
      "NUMPADCOMMA",
      "",
      "DIVIDE",
      "",
      "SYSRQ",
      "RMENU",
      "","","","","","","","","","","","",
      "PAUSE",
      "",
      "HOME",
      "UP",
      "PGUP",
      "",
      "LEFT",
      "",
      "RIGHT",
      "",
      "END", "DOWN", "PGDOWN", "INSERT", "DELETE",
      "","","","","","","",
      "LWIN", "RWIN", "APPS",
      "POWER", "SLEEP",
      "","","",
      "WAKE",
      "",
      "WEBSEARCH", "WEBFAVORITES", "WEBREFRESH", "WEBSTOP", "WEBFORWARD", "WEBBACK",
      "MYCOMPUTER", "MAIL", "MEDIASELECT"
    };
    for (unsigned int i = 0; i < nKeys_s; i++)
      keys_[i].name_ = "Key" + keyNames[i];

    // mouse buttons
    std::string mouseButtonNames[] = {
      "MouseLeft", "MouseRight", "MouseMiddle",
      "MouseButton3", "MouseButton4", "MouseButton5",
      "MouseButton6", "MouseButton7",
      "MouseWheel1Up", "MouseWheel1Down",
      "MouseWheel2Up", "MouseWheel2Down" };
    for (unsigned int i = 0; i < nMouseButtons_s; i++)
      mouseButtons_[i].name_ = mouseButtonNames[i];

    // joy stick buttons
    for (unsigned int i = 0; i < 32; i++)
      joyStickButtons_[i].name_ = "JoyButton" + getConvertedValue<int, std::string>(i);
    for (unsigned int i = 32; i < nJoyStickButtons_s; i += 4)
    {
                  joyStickButtons_[i + 0].name_ = "JoyPOV" + getConvertedValue<int, std::string>((i - 32)/4 + 1) + "North";
                  joyStickButtons_[i + 1].name_ = "JoyPOV" + getConvertedValue<int, std::string>((i - 32)/4 + 1) + "South";
                  joyStickButtons_[i + 2].name_ = "JoyPOV" + getConvertedValue<int, std::string>((i - 32)/4 + 1) + "East";
                  joyStickButtons_[i + 3].name_ = "JoyPOV" + getConvertedValue<int, std::string>((i - 32)/4 + 1) + "West";
    }

    // half axes
    std::string rawNames[nHalfAxes_s/2];
    rawNames[0] = "MouseX";
    rawNames[1] = "MouseY";
    rawNames[2] = "Empty1";
    rawNames[3] = "Empty2";
    for (unsigned int i = 4; i < nHalfAxes_s/2; i++)
      rawNames[i] = "JoyAxis" + getConvertedValue<int, std::string>(i - 3);
    for (unsigned int i = 0; i < nHalfAxes_s/2; i++)
    {
      halfAxes_[i * 2 + 0].name_ = rawNames[i] + "Pos";
      halfAxes_[i * 2 + 1].name_ = rawNames[i] + "Neg";
    }

    for (unsigned int i = 0; i < this->nHalfAxes_s; i++)
      halfAxes_[i].buttonThreshold_ = buttonThreshold_;
  }

  /**
    @brief Destructor
  */
  KeyBinder::~KeyBinder()
  {
    // almost no destructors required because most of the arrays are static.
    clearBindings(); // does some destruction work
  }

  /**
    @brief Loads the key and button bindings.
    @return True if loading succeeded.
  */
  void KeyBinder::loadBindings()
  {
    COUT(3) << "KeyBinder: Loading key bindings..." << std::endl;

    clearBindings();

    std::ifstream infile;
    infile.open("keybindings.ini");
    if (!infile.is_open())
    {
      ConfigFileManager::getSingleton()->setFile(CFT_Keybindings, "def_keybindings.ini");
      ConfigFileManager::getSingleton()->save(CFT_Keybindings, "keybindings.ini");
    }
    infile.close();
    ConfigFileManager::getSingleton()->setFile(CFT_Keybindings, "keybindings.ini");

    // parse key bindings
    setConfigValues();

    COUT(3) << "KeyBinder: Loading key bindings done." << std::endl;
  }

  /**
    @brief Loader for the key bindings, managed by config values.
  */
  void KeyBinder::setConfigValues()
  {
    SetConfigValue(analogThreshold_, 0.01f)  .description("Threshold for analog axes until which the state is 0.");
    SetConfigValue(mouseSensitivity_, 1.0f)  .description("Mouse sensitivity.");
    SetConfigValue(bDeriveMouseInput_, false).description("Whether or not to derive moues movement for the absolute value.");
    SetConfigValue(derivePeriod_, 0.5f).description("Accuracy of the mouse input deriver. The higher the more precise, but laggier.");
    SetConfigValue(mouseSensitivityDerived_, 1.0f).description("Mouse sensitivity if mouse input is derived.");

    float oldThresh = buttonThreshold_;
    SetConfigValue(buttonThreshold_, 0.80f).description("Threshold for analog axes until which the button is not pressed.");
    if (oldThresh != buttonThreshold_)
      for (unsigned int i = 0; i < nHalfAxes_s; i++)
        if (halfAxes_[i].buttonThreshold_ == oldThresh)
          halfAxes_[i].buttonThreshold_ = buttonThreshold_;

    // keys
    for (unsigned int i = 0; i < nKeys_s; i++)
      readTrigger(keys_[i]);
    // mouse buttons
    for (unsigned int i = 0; i < nMouseButtons_s; i++)
      readTrigger(mouseButtons_[i]);
    // joy stick buttons
    for (unsigned int i = 0; i < nJoyStickButtons_s; i++)
      readTrigger(joyStickButtons_[i]);
    // half axes
    for (unsigned int i = 0; i < nHalfAxes_s; i++)
      readTrigger(halfAxes_[i]);
  }

  void KeyBinder::readTrigger(Button& button)
  {
    // config value stuff
    ConfigValueContainer* cont = getIdentifier()->getConfigValueContainer(button.name_);
    if (!cont)
    {
      cont = new ConfigValueContainer(CFT_Keybindings, getIdentifier(), button.name_, "");
      getIdentifier()->addConfigValueContainer(button.name_, cont);
    }
    std::string old = button.bindingString_;
    cont->getValue(&button.bindingString_);

    // keybinder stuff
    if (old != button.bindingString_)
    {
      // binding has changed
      button.parse(paramCommandBuffer_);
    }
  }

  /**
    @brief Overwrites all bindings with ""
  */
  void KeyBinder::clearBindings()
  {
    for (unsigned int i = 0; i < nKeys_s; i++)
      keys_[i].clear();

    for (unsigned int i = 0; i < nMouseButtons_s; i++)
      mouseButtons_[i].clear();

    for (unsigned int i = 0; i < nJoyStickButtons_s; i++)
      joyStickButtons_[i].clear();

    for (unsigned int i = 0; i < nHalfAxes_s; i++)
      halfAxes_[i].clear();

    for (unsigned int i = 0; i < paramCommandBuffer_.size(); i++)
      delete paramCommandBuffer_[i];
    paramCommandBuffer_.clear();
  }

  void KeyBinder::tickInput(float dt, const HandlerState& state)
  {
    // we have to process all the analog input since there is e.g. no 'mouseDoesntMove' event.
    unsigned int iBegin = 8;
    unsigned int iEnd   = 8;
    if (state.joyStick)
      iEnd = nHalfAxes_s;
    if (state.mouse)
      iBegin = 0;
    for (unsigned int i = iBegin; i < iEnd; i++)
    {
      if (halfAxes_[i].hasChanged_)
      {
        if (!halfAxes_[i].wasDown_ && halfAxes_[i].absVal_ > halfAxes_[i].buttonThreshold_)
        {
          halfAxes_[i].wasDown_ = true;
          if (halfAxes_[i].nCommands_[KeybindMode::OnPress])
            halfAxes_[i].execute(KeybindMode::OnPress);
        }
        else if (halfAxes_[i].wasDown_ && halfAxes_[i].absVal_ < halfAxes_[i].buttonThreshold_)
        {
          halfAxes_[i].wasDown_ = false;
          if (halfAxes_[i].nCommands_[KeybindMode::OnRelease])
            halfAxes_[i].execute(KeybindMode::OnRelease);
        }
        halfAxes_[i].hasChanged_ = false;
      }

      if (halfAxes_[i].wasDown_)
      {
        if (halfAxes_[i].nCommands_[KeybindMode::OnHold])
          halfAxes_[i].execute(KeybindMode::OnHold);
      }

      // these are the actually useful axis bindings for analog input AND output
      if (halfAxes_[i].relVal_ > analogThreshold_ || halfAxes_[i].absVal_ > analogThreshold_)
      {
        //COUT(3) << halfAxes_[i].name_ << "\t" << halfAxes_[i].absVal_ << std::endl;
        halfAxes_[i].execute();
      }
    }

    if (bDeriveMouseInput_ && state.mouse)
    {
      if (deriveTime_ > derivePeriod_)
      {
        //CCOUT(3) << "mouse abs: ";
        for (int i = 0; i < 2; i++)
        {
          if (mouseRelative_[i] > 0)
          {
            halfAxes_[2*i + 0].absVal_ =  mouseRelative_[i] / deriveTime_ * 0.0005 * mouseSensitivityDerived_;
            halfAxes_[2*i + 1].absVal_ = 0.0f;
          }
          else if (mouseRelative_[i] < 0)
          {
            halfAxes_[2*i + 0].absVal_ = 0.0f;
            halfAxes_[2*i + 1].absVal_ = -mouseRelative_[i] / deriveTime_ * 0.0005 * mouseSensitivityDerived_;
          }
          else
          {
            halfAxes_[2*i + 0].absVal_ = 0.0f;
            halfAxes_[2*i + 1].absVal_ = 0.0f;
          }
          //COUT(3) << mouseRelative_[i] << " | ";
          mouseRelative_[i] = 0;
        }
        deriveTime_ = 0.0f;
        //COUT(3) << std::endl;
      }
      else
        deriveTime_ += dt;
    }

    // execute all buffered bindings (addional parameter)
    for (unsigned int i = 0; i < paramCommandBuffer_.size(); i++)
      paramCommandBuffer_[i]->execute();

    // always reset the relative movement of the mouse
    if (state.mouse)
      for (unsigned int i = 0; i < 8; i++)
        halfAxes_[i].relVal_ = 0.0f;
  }

  void KeyBinder::keyPressed (const KeyEvent& evt)
  { keys_[evt.key].execute(KeybindMode::OnPress); }

  void KeyBinder::keyReleased(const KeyEvent& evt)
  { keys_[evt.key].execute(KeybindMode::OnRelease); }

  void KeyBinder::keyHeld    (const KeyEvent& evt)
  { keys_[evt.key].execute(KeybindMode::OnHold); }


  void KeyBinder::mouseButtonPressed (MouseButton::Enum id)
  { mouseButtons_[id].execute(KeybindMode::OnPress); }

  void KeyBinder::mouseButtonReleased(MouseButton::Enum id)
  { mouseButtons_[id].execute(KeybindMode::OnRelease); }

  void KeyBinder::mouseButtonHeld    (MouseButton::Enum id)
  { mouseButtons_[id].execute(KeybindMode::OnHold); }


  void KeyBinder::joyStickButtonPressed (int joyStickID, int button)
  { joyStickButtons_[button].execute(KeybindMode::OnPress); }

  void KeyBinder::joyStickButtonReleased(int joyStickID, int button)
  { joyStickButtons_[button].execute(KeybindMode::OnRelease); }

  void KeyBinder::joyStickButtonHeld    (int joyStickID, int button)
  { joyStickButtons_[button].execute(KeybindMode::OnHold); }

  /**
    @brief Event handler for the mouseMoved Event.
    @param e Mouse state information
  */
  void KeyBinder::mouseMoved(IntVector2 abs_, IntVector2 rel_, IntVector2 clippingSize)
  {
    if (!bDeriveMouseInput_)
    {
      // y axis of mouse input is inverted
      int rel[] = { rel_.x, -rel_.y };

      //COUT(3) << rel[0] << " | " << rel[1] << std::endl;

      for (int i = 0; i < 2; i++)
      {
        if (rel[i])
        {
          // absolute
          if (mousePosition_[i] >= 0)
          {
            mousePosition_[i] += rel[i];
            halfAxes_[0 + 2*i].hasChanged_ = true;
            if (mousePosition_[i] < 0)
            {
              halfAxes_[1 + 2*i].hasChanged_ = true;
              halfAxes_[1 + 2*i].absVal_ = -((float)mousePosition_[i])/1024 * mouseSensitivity_;
              halfAxes_[0 + 2*i].absVal_ =  0.0f;
            }
            else
              halfAxes_[0 + 2*i].absVal_ =  ((float)mousePosition_[i])/1024 * mouseSensitivity_;
          }
          else
          {
            mousePosition_[i] += rel[i];
            halfAxes_[1 + 2*i].hasChanged_ = true;
            if (mousePosition_[i] > 0)
            {
              halfAxes_[0 + 2*i].hasChanged_ = true;
              halfAxes_[0 + 2*i].absVal_ =  ((float)mousePosition_[i])/1024 * mouseSensitivity_;
              halfAxes_[1 + 2*i].absVal_ =  0.0f;
            }
            else
              halfAxes_[1 + 2*i].absVal_ = -((float)mousePosition_[i])/1024 * mouseSensitivity_;
          }
          //COUT(3) << "half axis 0: " << halfAxes_[0].absVal_ << std::endl;
          //COUT(3) << "half axis 1: " << halfAxes_[1].absVal_ << std::endl;
          //COUT(3) << "half axis 2: " << halfAxes_[2].absVal_ << std::endl;
          //COUT(3) << "half axis 3: " << halfAxes_[3].absVal_ << std::endl;

          // relative
          if (rel[i] > 0)
            halfAxes_[0 + 2*i].relVal_ =  ((float)rel[i])/1024 * mouseSensitivity_;
          else
            halfAxes_[1 + 2*i].relVal_ = -((float)rel[i])/1024 * mouseSensitivity_;
        }
      }
    }
    else
    {
      mouseRelative_[0] += rel_.x;
      mouseRelative_[1] -= rel_.y;
    }
  }

  /**
    @brief Event handler for the mouseScrolled Event.
    @param e Mouse state information
  */
  void KeyBinder::mouseScrolled(int abs, int rel)
  {
    //COUT(3) << mouseButtons_[8].name_ << "   " << abs << " | " << rel << std::endl;

    if (rel > 0)
      for (int i = 0; i < rel/120; i++)
        mouseButtons_[8].execute(KeybindMode::OnPress, ((float)abs)/120.0f);
    else
      for (int i = 0; i < -rel/120; i++)
        mouseButtons_[9].execute(KeybindMode::OnPress, ((float)abs)/120.0f);
  }

  void KeyBinder::joyStickAxisMoved(int joyStickID, int axis, int value)
  {
    // TODO: Use proper calibration values instead of generally 16-bit integer
    int i = 8 + axis * 2;
    if (value >= 0)
    {
      //if (value > 10000)
      //{ CCOUT(3) << halfAxes_[i].name_ << std::endl; }

      halfAxes_[i].absVal_ = ((float)value)/0x8000;
      halfAxes_[i].relVal_ = ((float)value)/0x8000;
      halfAxes_[i].hasChanged_ = true;
      if (halfAxes_[i + 1].absVal_ > 0)
      {
        halfAxes_[i + 1].absVal_ = -0.0f;
        halfAxes_[i + 1].relVal_ = -0.0f;
        halfAxes_[i + 1].hasChanged_ = true;
      }
    }
    else
    {
      //if (value < -10000)
      //{ CCOUT(3) << halfAxes_[i + 1].name_ << std::endl; }

      halfAxes_[i + 1].absVal_ = -((float)value)/0x8000;
      halfAxes_[i + 1].relVal_ = -((float)value)/0x8000;
      halfAxes_[i + 1].hasChanged_ = true;
      if (halfAxes_[i].absVal_ > 0)
      {
        halfAxes_[i].absVal_ = -0.0f;
        halfAxes_[i].relVal_ = -0.0f;
        halfAxes_[i].hasChanged_ = true;
      }
    }
  }


  // ###############################
  // #####     KeyDetector     #####
  // ###############################

  /**
    @brief Constructor
  */
  KeyDetector::KeyDetector()
  {
    RegisterObject(KeyDetector);
  }

  /**
    @brief Destructor
  */
  KeyDetector::~KeyDetector()
  {
  }

  /**
    @brief Loads the key and button bindings.
    @return True if loading succeeded.
  */
  void KeyDetector::loadBindings()
  {
    clearBindings();
    setConfigValues();
  }

  /**
    @brief Loader for the key bindings, managed by config values.
  */
  void KeyDetector::setConfigValues()
  {
    // keys
    for (unsigned int i = 0; i < nKeys_s; i++)
      readTrigger(keys_[i]);
    // mouse buttons
    for (unsigned int i = 0; i < nMouseButtons_s; i++)
      readTrigger(mouseButtons_[i]);
    // joy stick buttons
    for (unsigned int i = 0; i < nJoyStickButtons_s; i++)
      readTrigger(joyStickButtons_[i]);
    // half axes
    for (unsigned int i = 0; i < nHalfAxes_s; i++)
      readTrigger(halfAxes_[i]);
  }

  void KeyDetector::readTrigger(Button& button)
  {
    // binding has changed
    button.parse(paramCommandBuffer_);
    SimpleCommand* cmd = new SimpleCommand();
    cmd->evaluation_ = CommandExecutor::evaluate("storeKeyStroke " + button.name_);
    button.commands_[KeybindMode::OnPress] = new BaseCommand*[1];
    button.commands_[KeybindMode::OnPress][0] = cmd;
    button.nCommands_[KeybindMode::OnPress] = 1;
  }
  
}