src/common/Pong.h (2314a46) - Blinker · BlinkenArea

Pong.h

/* Blinker
   Copyright 2011-2019 Stefan Schuermans <stefan@blinkenarea.org>
   Copyleft GNU public license - http://www.gnu.org/copyleft/gpl.html
   a blinkenarea.org project */

#ifndef BLINKER_PONG_H
#define BLINKER_PONG_H

#include <string>
#include <vector>

#include <BlinkenLib/BlinkenFrame.h>

#include "Color.h"
#include "ColorFile.h"
#include "File.h"
#include "Format.h"
#include "FormatFile.h"
#include "Game.h"
#include "Mgrs.h"
#include "Module.h"
#include "OpConn.h"
#include "OpConnIf.h"
#include "OpReqIf.h"
#include "OutStreamFile.h"
#include "Time.h"
#include "TimeCallee.h"

namespace Blinker {

/// pong game
class Pong: public Game, public OpReqIf, public TimeCallee
{
public:
  /**
   * @brief constructor
   * @param[in] name module name
   * @param[in] mgrs managers
   * @param[in] dirBase base directory
   */
  Pong(const std::string &name, Mgrs &mgrs, const Directory &dirBase);

/// virtual destructor
  virtual ~Pong();

private:
  /// copy constructor disabled
  Pong(const Pong &that);

/// assignment operator disabled
  const Pong & operator=(const Pong &that);

public:
  /// check for update of configuration (derived game), return true on update
  virtual bool updateConfigGame();

/**
   * @brief check if accepting new operator connction is possible
   * @param[in] name operator interface name
   * @return if accepting new connection is possible
   */
  virtual bool acceptNewOpConn(const std::string &name);

/**
   * @brief new operator connection
   * @param[in] name operator interface name
   * @param[in] pConn operator connection object
   *
   * The new connection may not yet be used for sending inside this callback.
   */
  virtual void newOpConn(const std::string &name, OpConn *pConn);

/**
   * @brief key command received on operator connection
   * @param[in] pConn operator connection object
   * @param[in] key key that was pressed
   */
  virtual void opConnRecvKey(OpConn *pConn, char key);

/**
   * @brief play command received on operator connection
   * @param[in] pConn operator connection object
   * @param[in] sound name of sound to play
   */
  virtual void opConnRecvPlay(OpConn *pConn, const std::string &sound);

/**
   * @brief operator connection is closed
   * @param[in] pConn operator connection object
   *
   * The connection may not be used for sending any more in this callback.
   */
  virtual void opConnClose(OpConn *pConn);

protected:
  /// re-initialize game (e.g. due to config change)
  virtual void reinitialize();

/// redraw current game image, expected to call sendFrame() at end
  virtual void redraw();

/// callback when requested time reached
  virtual void timeCall();

/**
   * @brief process key received from phone player
   * @param[in] key received key from player
   * @param[in,out] padPosY y position of player's pad
   */
  void processKey(char key, int &padPosY);

/**
   * @brief delay processing for computer players
   * @param[in,out] delay delay variable of computer player
   * @return whether computer player is allowed to move
   */
  bool computerDelay(int &delay) const;

/**
   * @brief computation of ideal pad position for computer players
   * @param[in] padBallX x coordinate of position of ball when hitting the pad
   * @param[in] padY current y coordinate of pad
   * @param[out] padYmin minimum ideal y position of pad
   * @param[out] padYmax maximum ideal y position of pad
   */
  void computerComputePadPos(int padBallX, int padY,
                             int &padYmin, int &padYmax) const;

/**
   * @brief move pad for computer players
   * @param[in] padYmin minimum desired y position of pad
   * @param[in] padYmax maximum desired y position of pad
   * @param[in,out] padPosY y position of pad
   */
  void computerMovePad(int padYmin, int padYmax, int &padPosY) const;

/// computer player for left pad
  void computerLeft();

/// computer player for right pad
  void computerRight();

/// bounce ball
  void bounceBall();

/// bounce ball at sides
  void bounceBallSide();

/// bounce ball at left pad
  void bounceBallLeft();

/// bounce ball at right pad
  void bounceBallRight();

/// request next time call - or cancel request if not needed
  void planTimeCall();

/// move ball out of the field and halt it
  void hideBall();

/// start ball
  void startBall();

protected:

/// operator connection name suffix for left player's connection
  static std::string const OpConnSuffixLeft;
  /// operator connection name suffix for right player's connection
  static std::string const OpConnSuffixRight;

ColorFile m_fileBallColor;     ///< color file for ball color
  ColorFile m_fileLineColor;     ///< color file for center line
  ColorFile m_filePadColor;      ///< color file for phone player pad
  ColorFile m_fileComputerColor; ///< color file for computer player pad
  ColorData m_ballColor;         ///< ball color
  ColorData m_lineColor;         ///< center line color
  ColorData m_padColor;          ///< phone player pad color
  ColorData m_computerColor;     ///< computer player pad color
  int       m_ballPosX;          ///< ball position X
  int       m_ballPosY;          ///< ball position Y
  int       m_ballDirX;          ///< ball direction X
  int       m_ballDirY;          ///< ball direction Y
  int       m_padSize;           ///< size of player pads
  int       m_leftPosY;          ///< position of top pixel of left pad
  int       m_rightPosY;         ///< position of top pixel of right pad
  int       m_leftDelay;         ///< delay for computer moving left pad
  int       m_rightDelay;        ///< delay for computer moving right pad
  OpConn   *m_pConnLeft;         ///< operator connection left player (or NULL)
  OpConn   *m_pConnRight;        ///< operator connection right player (o NULL)
}; // class Canvas

} // namespace Blinker

#endif // #ifndef BLINKER_PONG_H

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