source: orxonox.OLD/orxonox/trunk/src/lib/event/key_mapper.cc @ 4836

/*
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2004 orx

   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, or (at your option)
   any later version.

   ### File Specific:
   main-programmer: Patrick Boenzli
   co-programmer: Christian Meyer

   This code was inspired by the command_node.cc code from Christian Meyer in revision
   4386 and earlier.
*/

#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_EVENT

#include "key_mapper.h"

#include "ini_parser.h"
#include "key_names.h"

using namespace std;


/* initialize all variables to a reasonable value*/
int KeyMapper::PEV_UP                = EV_UNKNOWN;
int KeyMapper::PEV_DOWN              = EV_UNKNOWN;
int KeyMapper::PEV_LEFT              = EV_UNKNOWN;
int KeyMapper::PEV_RIGHT             = EV_UNKNOWN;
int KeyMapper::PEV_STRAFE_LEFT       = EV_UNKNOWN;
int KeyMapper::PEV_STRAFE_RIGHT      = EV_UNKNOWN;

int KeyMapper::PEV_FIRE1             = EV_UNKNOWN;
int KeyMapper::PEV_FIRE2             = EV_UNKNOWN;
int KeyMapper::PEV_PREVIOUS_WEAPON   = EV_UNKNOWN;
int KeyMapper::PEV_NEXT_WEAPON       = EV_UNKNOWN;

int KeyMapper::PEV_VIEW0             = EV_UNKNOWN;
int KeyMapper::PEV_VIEW1             = EV_UNKNOWN;
int KeyMapper::PEV_VIEW2             = EV_UNKNOWN;
int KeyMapper::PEV_VIEW3             = EV_UNKNOWN;
int KeyMapper::PEV_VIEW4             = EV_UNKNOWN;
int KeyMapper::PEV_VIEW5             = EV_UNKNOWN;

int KeyMapper::PEV_NEXT_WORLD        = EV_UNKNOWN;
int KeyMapper::PEV_PREVIOUS_WORLD    = EV_UNKNOWN;

int KeyMapper::PEV_PAUSE             = EV_UNKNOWN;
int KeyMapper::PEV_QUIT              = EV_UNKNOWN;



//! this is the mapping array from names to ids: enter all orxonox.conf keys here
/** @todo use globals.h for this.... everything is done there for those Options,
 * and you do not have to care about The namings, as they might change
 */
orxKeyMapping map[] = {
  {&KeyMapper::PEV_UP,                   CONFIG_NAME_PLAYER_UP},
  {&KeyMapper::PEV_DOWN,                 CONFIG_NAME_PLAYER_DOWN},
  {&KeyMapper::PEV_LEFT,                 CONFIG_NAME_PLAYER_LEFT},
  {&KeyMapper::PEV_RIGHT,                CONFIG_NAME_PLAYER_RIGHT},
  {&KeyMapper::PEV_STRAFE_LEFT,          "StrafeLeft"},
  {&KeyMapper::PEV_STRAFE_RIGHT,         "StrafeRight"},

  {&KeyMapper::PEV_FIRE1,                CONFIG_NAME_PLAYER_FIRE},
  {&KeyMapper::PEV_FIRE1,                "Fire1"},
  {&KeyMapper::PEV_FIRE2,                "Fire2"},
  {&KeyMapper::PEV_NEXT_WEAPON,          "Next"},
  {&KeyMapper::PEV_PREVIOUS_WEAPON,      "Prev"},


  {&KeyMapper::PEV_VIEW0,                CONFIG_NAME_VIEW0},
  {&KeyMapper::PEV_VIEW1,                CONFIG_NAME_VIEW1},
  {&KeyMapper::PEV_VIEW2,                CONFIG_NAME_VIEW2},
  {&KeyMapper::PEV_VIEW3,                CONFIG_NAME_VIEW3},
  {&KeyMapper::PEV_VIEW4,                CONFIG_NAME_VIEW4},
  {&KeyMapper::PEV_VIEW5,                CONFIG_NAME_VIEW5},

  {&KeyMapper::PEV_NEXT_WORLD,           CONFIG_NAME_NEXT_WORLD},
  {&KeyMapper::PEV_PREVIOUS_WORLD,       CONFIG_NAME_PREV_WORLD},

  {&KeyMapper::PEV_PAUSE,                CONFIG_NAME_PAUSE},
  {&KeyMapper::PEV_QUIT,                 CONFIG_NAME_QUIT},
  {NULL, NULL}
};



/**
 *  standard constructor
*/
KeyMapper::KeyMapper ()
{
   this->setClassID(CL_KEY_MAPPER, "KeyMapper");
}


/**
 *  standard deconstructor
*/
KeyMapper::~KeyMapper ()
{
}


/**
 *  loads new key bindings from a file
 * @param filename: The path and name of the file to load the bindings from
*/
void KeyMapper::loadKeyBindings (const char* fileName)
{
  FILE* stream;

  PRINTF(4)("Loading key bindings from %s\n", fileName);

  // create parser
  IniParser parser(fileName);
  if( parser.getSection (CONFIG_SECTION_PLAYER "1") == -1)
    {
      PRINTF(1)("Could not find key bindings " CONFIG_SECTION_PLAYER"1 in %s\n", fileName);
      return;
    }
  // allocate empty lookup table

  char namebuf[256];
  char valuebuf[256];
  memset (namebuf, 0, 256);
  memset (valuebuf, 0, 256);
  int* index;

  while( parser.nextVar (namebuf, valuebuf) != -1)
    {
      PRINTF(3)("Keys: Parsing %s, %s now.\n", namebuf, valuebuf);
      index = nameToIndex (valuebuf);
      this->mapKeys(namebuf, index[1]);

      /*
      switch( index[0])
        {
        case 0:
          this->mapKeys(namebuf, index[1]);
          break;
        case 1:
          this->mapKeys(namebuf, index[1]);
          break;
        default:
          break;
        }
      */
      memset (namebuf, 0, 256);
      memset (valuebuf, 0, 256);
    }


  // PARSE MISC SECTION
  if( parser.getSection (CONFIG_SECTION_MISC_KEYS) == -1)
    {
      PRINTF(1)("Could not find key bindings in %s\n", fileName);
      return;
    }

  while( parser.nextVar (namebuf, valuebuf) != -1)
    {
      PRINTF(3)("MISC: Parsing %s, %s now.\n", namebuf, valuebuf);
      index = nameToIndex (valuebuf);
      this->mapKeys(namebuf, index[1]);
      /*
      switch( index[0])
        {
        case 0:
          this->mapKeys(namebuf, index[1]);
          break;
        case 1:
        this->mapKeys(namebuf, index[1]);
          break;
        default:
          break;
        }
      */
      memset (namebuf, 0, 256);
      memset (valuebuf, 0, 256);
    }
}


/**
 *  this function looks up name to key index
 * @param the name of the button
*/
int* KeyMapper::nameToIndex (char* name)
{
  coord[0] = -1;
  coord[1] = -1;
  int c;
  if( (c = keynameToSDLK (name)) != -1)
    {
      coord[1] = c;
      coord[0] = 0;
    }
  if( (c = buttonnameToSDLB (name)) != -1)
    {
      coord[1] = c;
      coord[0] = 1;
    }
  return coord;
}


/**
 *  the function maps name to key ids
 * @param name of the key
 * @param id of the key
*/
void KeyMapper::mapKeys(char* name, int keyID)
{
  for(int i = 0; map[i].pValue != NULL; ++i )
    {
      if( !strcmp (name, map[i].pName))
      {
        *map[i].pValue = keyID;
        PRINTF(0)("Mapping %s to id %i\n", name, keyID);
        break;
      }
    }
}


/**
 *  this function gives some debug information about the key mapper class
*/
void KeyMapper::debug()
{
  PRINT(0)("\n==========================| KeyMapper::debug() |===\n");
  for(int i = 0; map[i].pValue != NULL; ++i)
    {
      PRINT(0)("%s = %i\n",map[i].pName, *map[i].pValue);
    }
  PRINT(0)("=======================================================\n");
}