Evocosm - A C++ Framework for Evolutionary Computing

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Created by Scott Robert Ladd at Coyote Gulch Productions.


machine_tools.h
00001 /*
00002     Evocosm is a C++ framework for implementing evolutionary algorithms.
00003 
00004     Copyright 2011 Scott Robert Ladd. All rights reserved.
00005 
00006     Evocosm is user-supported open source software. Its continued development is dependent
00007     on financial support from the community. You can provide funding by visiting the Evocosm
00008     website at:
00009 
00010         http://www.coyotegulch.com
00011 
00012     You may license Evocosm in one of two fashions:
00013 
00014     1) Simplified BSD License (FreeBSD License)
00015 
00016     Redistribution and use in source and binary forms, with or without modification, are
00017     permitted provided that the following conditions are met:
00018 
00019     1.  Redistributions of source code must retain the above copyright notice, this list of
00020         conditions and the following disclaimer.
00021 
00022     2.  Redistributions in binary form must reproduce the above copyright notice, this list
00023         of conditions and the following disclaimer in the documentation and/or other materials
00024         provided with the distribution.
00025 
00026     THIS SOFTWARE IS PROVIDED BY SCOTT ROBERT LADD ``AS IS'' AND ANY EXPRESS OR IMPLIED
00027     WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
00028     FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SCOTT ROBERT LADD OR
00029     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00030     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00031     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
00032     ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00033     NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
00034     ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00035 
00036     The views and conclusions contained in the software and documentation are those of the
00037     authors and should not be interpreted as representing official policies, either expressed
00038     or implied, of Scott Robert Ladd.
00039 
00040     2) Closed-Source Proprietary License
00041 
00042     If your project is a closed-source or proprietary project, the Simplified BSD License may
00043     not be appropriate or desirable. In such cases, contact the Evocosm copyright holder to
00044     arrange your purchase of an appropriate license.
00045 
00046     The author can be contacted at:
00047 
00048           scott.ladd@coyotegulch.com
00049           scott.ladd@gmail.com
00050           http:www.coyotegulch.com
00051 */
00052 
00053 #if !defined(LIBEVOCOSM_FSM_TOOLS_H)
00054 #define LIBEVOCOSM_FSM_TOOLS_H
00055 
00056 // libevocosm
00057 #include "roulette.h"
00058 
00059 namespace libevocosm
00060 {
00062 
00065     class machine_tools
00066     {
00067     protected:
00069         enum mutation_id
00070         {
00071             MUTATE_OUTPUT_SYMBOL, 
00072             MUTATE_TRANSITION,    
00073             MUTATE_REPLACE_STATE, 
00074             MUTATE_SWAP_STATES,   
00075             MUTATE_INIT_STATE     
00076         };
00077 
00079 
00095         class mutation_selector
00096         {
00097         public:
00099 
00103             mutation_selector()
00104               : m_selector(NULL)
00105             {
00106                 static const double default_weights [] = { 20.0, 20.0, 20.0, 20.0, 20.0 };
00107 
00108                 m_selector = new roulette_wheel(default_weights,5);
00109             }
00110 
00112 
00116             mutation_selector(const mutation_selector & a_source)
00117               : m_selector(new roulette_wheel(*a_source.m_selector))
00118             {
00119                 // nada
00120             }
00121 
00123 
00126             ~mutation_selector()
00127             {
00128                 delete m_selector;
00129             }
00130 
00132 
00136             mutation_selector & operator = (const mutation_selector & a_source)
00137             {
00138                 m_selector = new roulette_wheel(*a_source.m_selector);
00139                 return *this;
00140             }
00141 
00143 
00148             void set_weight(mutation_id a_type, double & a_new_weight)
00149             {
00150                 m_selector->set_weight(a_type,a_new_weight);
00151             }
00152 
00154             /*
00155                 Returns an index, shosen by roulette wheel, corresponding to a
00156                 <i>mutation_id</i> value.
00157                 \return A mutation_id index
00158             */
00159             size_t get_index() const
00160             {
00161                 return m_selector->get_index();
00162             }
00163 
00164         private:
00165             // The actual roulette wheel
00166             roulette_wheel * m_selector;
00167         };
00168     };
00169 }
00170 
00171 #endif

© 1996-2005 Scott Robert Ladd. All rights reserved.
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