genericvalues.cpp

自己写的robocup-2d程序

/*
Copyright (c) 2000-2003, Jelle Kok, University of Amsterdam
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.

3. Neither the name of the University of Amsterdam nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/*! \file GenericValues.cpp
<pre>
<b>File:</b>          GenericValues.cpp
<b>Project:</b>       Robocup Soccer Simulation Team: UvA Trilearn
<b>Authors:</b>       Jelle Kok
<b>Created:</b>       28/11/2000
<b>Last Revision:</b> $ID$
<b>Contents:</b>      Code file for classes GenericValueT and GenericValues.
               The class GenericValueT contains a pointer to a variable
               of a generic type (double, char*, bool, int). This pointer
               is associated with a string. The class GenericValues
               contains a collection of GenericValueT objects. The member
               method implementations for both classes can be found in
               this file.</pre>
<hr size=2>
<pre>
<h2><b>Changes</b></h2>
<b>Date</b>             <b>Author</b>          <b>Comment</b>
28/11/2000       Jelle Kok       Initial version created (based on Emiel Corten)
30/12/2000       Jelle Kok       Initial documentation written
21/05/2001       Remco de Boer   Version including full documentation completed
</pre>
*/

#include "GenericValues.h"
#include "Parse.h"           // needed for 'gotoFirstNonSpace'
#include <stdio.h>           // needed for 'sprintf'
#include <stdlib.h>          // needed for 'free'
#include <string.h>          // needed for 'strdup'
#include <ctype.h>           // needed for 'isdigit'
#include <fstream>           // needed for 'ifstream'

/*****************************************************************************/
/*******************   CLASS GENERICVALUET   *********************************/
/*****************************************************************************/

/*! Constructor for the GenericValueT class. It creates a GenericValueT object
    by setting all the private member variables to the values passed to the
    constructor.
    \param strName a string denoting the name associated with the generic
    variable to which the class pointer will point (the variable can be reached
    through this name)
    \param vAdress a (void) pointer to the actual generic variable
    \param t the (generic) type of the variable associated with the class
    pointer */
GenericValueT::GenericValueT( const char *str, void *vAddr, GenericValueKind t)
{
  m_strName  = strdup( str ); // strdup needed to alloc right amount of memory
  m_vAddress = vAddr;
  m_type     = t;
}

/*! Destructor for the GenericValueT class. It destroys a GenericValueT object
    by freeing all memory allocated to it. */
GenericValueT::~GenericValueT( )
{
  if( m_strName )
    free( ( char * ) m_strName );
}

/*! Get method for the 'm_strName' member variable.
    \return the name associated with the variable to which the class pointer
    points */
const char* GenericValueT::getName ( )
{
  return ( m_strName );
}

/*! This method sets the variable associated with this GenericValueT
    object to the value indicated by the given string argument. The
    value is always supplied as a string which is then converted into
    the right type for this GenericValueT object.

    \param strValue a string denoting the value to which the variable
    associated with this GenericValueT object must be set 
    
    \return a boolean indicating whether the update was successful */
bool GenericValueT::setValue( const char *strValue )
{
  bool bReturn = true, b;

  // determine the generic type associated with this GenericValueT
  // object and apply the correct conversion of the string argument
  switch( m_type )
  {
    case GENERIC_VALUE_DOUBLE:
      *( double * ) m_vAddress = atof( strValue ? strValue : 0 );
      break;
    case GENERIC_VALUE_STRING:
      strcpy( ( char * ) m_vAddress, strValue );
      break;
    case GENERIC_VALUE_BOOLEAN:
      b = false;
      if( !strValue )
        ;
      else if( isdigit( strValue[ 0 ] ) )
		  b = atoi( strValue ? strValue : 0 ) == 0 ? false : true ;
#ifdef WIN32
      else if( strcmp( strValue, "on"  ) == 0 ||
               strcmp( strValue, "true") == 0 ||
               strcmp( strValue, "yes" ) == 0 )
#else
      else if( strcasecmp( strValue, "on"  ) == 0 ||
               strcasecmp( strValue, "true") == 0 ||
               strcasecmp( strValue, "yes" ) == 0 )
#endif
        b = true;

      *( bool * ) m_vAddress = ( b == true ) ? true : false;
      break;
    case GENERIC_VALUE_INTEGER:
      *( int * ) m_vAddress = atoi( strValue ? strValue : 0 );
      break;
    default:
      bReturn = false;
  }

  return ( bReturn );
}

/*! This method determines the value of the variable associated with
    this GenericValueT object. The result is converted to a string
    which is put into the argument to the method (note that enough
    memory must be allocated for this char*). This same string is also
    returned by the method. This enables you to use the method as an
    argument to a function such as 'strcpy'.

    \param strValue a string which after the method call will contain
    the value of the variable associated with this GenericValueT
    object

    \return a string containing the value of the variable associated
    with this GenericValueT object. */
char* GenericValueT::getValue( char *strValue )
{
  // determine the generic type associated with this GenericValueT
  // object and apply the correct conversion into a string
  switch( m_type )
  {
    case GENERIC_VALUE_DOUBLE:
      sprintf( strValue, "%2f", *( double * ) m_vAddress );
      break;
    case GENERIC_VALUE_STRING:
      sprintf( strValue, "%s", ( char * ) m_vAddress );
      break;
    case GENERIC_VALUE_BOOLEAN:
      sprintf( strValue, "%d", *( int * ) m_vAddress );
      break;
    case GENERIC_VALUE_INTEGER:
      sprintf( strValue, "%d", *( int * ) m_vAddress );
      break;
    default:
      *strValue = '\0';
  }

  return ( strValue );
}

/*! This display method writes the name associated with the variable
    in this GenericValueT object together with its value to the output
    stream indicated by the first argument to the method. Name and
    value are separated by the separator given as the second
    argument. Note that boolean values are written as 'true' and
    'false'.

    \param out the output stream to which the information should be
    written

    \param strSeparator a string representing the separator which
    should be written between the name associated with the variable
    and its value */
void GenericValueT::show( ostream& out, const char *strSeparator )
{
  // write the name associated with the variable in this GenericValueT
  // object followed by the separator to the specified output stream
  out << m_strName << strSeparator;

  // determine the generic type associated with this GenericValueT
  // object and write the correct value to the specified output stream
  switch( m_type )
  {
    case GENERIC_VALUE_DOUBLE:
      out << *( double * ) m_vAddress;
      break;
    case GENERIC_VALUE_STRING:
      out << ( char * ) m_vAddress;
      break;
    case GENERIC_VALUE_BOOLEAN:
      out << ( ( *( bool * ) m_vAddress == true ) ? "true" : "false");
      break;
    case GENERIC_VALUE_INTEGER:
      out << *( int * ) m_vAddress;
      break;
    default:
      break;
  }

  out << endl;
}


/*****************************************************************************/
/*******************   CLASS GENERICVALUES   *********************************/
/*****************************************************************************/

/*! Constructor for the GenericValues class. It creates a GenericValues object.

    \param strName a string denoting the name associated with this group of
    generic values (this is usually the name of the subclass which contains the
    actual generic variables)
    \param iMaxValues an integer denoting the number of generic values in the
    current collection, i.e. the maximum number that can be stored */
GenericValues::GenericValues( char *strName, int iMaxValues )
{
  m_iValuesTotal = 0;   // total number of values in collection is set to zero

  if( strName )       // set the name of the collection
    m_strClassName = strdup( strName );

  m_iMaxGenericValues = iMaxValues;

  // a GenericValues object is a collection of GenericValueT objects
  m_values = new GenericValueT*[ iMaxValues ];
}

/*! Destructor for the GenericValues class. It destroys a GenericValues object
    by freeing all memory allocated to it. */
GenericValues::~GenericValues( void )
{
  for( int i = 0 ; i < getValuesTotal( ) ; i++ )
    delete m_values[ i ];
  delete m_values;

  if( m_strClassName )
    free( m_strClassName );
}

/*! Get method for the 'm_strClassName' member variable.
    \return the name associated with this group of generic values (this is
    usually the name of the subclass which contains the actual variables) */
char* GenericValues::getClassName( )
{
  return ( m_strClassName );
}

/*! Get method for the 'm_iValuesTotal' member variable.