/usr/include/libevocosm/machine_tools.h is in libevocosm-dev 4.0.2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | /*
Evocosm is a C++ framework for implementing evolutionary algorithms.
Copyright 2011 Scott Robert Ladd. All rights reserved.
Evocosm is user-supported open source software. Its continued development is dependent
on financial support from the community. You can provide funding by visiting the Evocosm
website at:
http://www.coyotegulch.com
You may license Evocosm in one of two fashions:
1) Simplified BSD License (FreeBSD License)
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.
THIS SOFTWARE IS PROVIDED BY SCOTT ROBERT LADD ``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 SCOTT ROBERT LADD 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.
The views and conclusions contained in the software and documentation are those of the
authors and should not be interpreted as representing official policies, either expressed
or implied, of Scott Robert Ladd.
2) Closed-Source Proprietary License
If your project is a closed-source or proprietary project, the Simplified BSD License may
not be appropriate or desirable. In such cases, contact the Evocosm copyright holder to
arrange your purchase of an appropriate license.
The author can be contacted at:
scott.ladd@coyotegulch.com
scott.ladd@gmail.com
http:www.coyotegulch.com
*/
#if !defined(LIBEVOCOSM_FSM_TOOLS_H)
#define LIBEVOCOSM_FSM_TOOLS_H
// libevocosm
#include "roulette.h"
namespace libevocosm
{
//! A set of common tools for finite state machines
/*!
A set of common tools for finite state machines.
*/
class machine_tools
{
protected:
//! Types of mutation supported
enum mutation_id
{
MUTATE_OUTPUT_SYMBOL, //!< Mutate an output symbol
MUTATE_TRANSITION, //!< Mutate a state transition
MUTATE_REPLACE_STATE, //!< Replace a new state with a randomly-generated one
MUTATE_SWAP_STATES, //!< Swap two states
MUTATE_INIT_STATE //!< Mutate that initial state
};
//! Wraps a roulette wheel for selecting mutations
/*!
This class encapsulates a roulette wheel for selecting mutations.
By default, the <i>simple_fsm::mutate</i> operator uses a pre-defined
<i>mutation_selector</i> with default percentages of:
- 20% MUTATE_OUTPUT_SYMBOL
- 20% MUTATE_TRANSITION
- 20% MUTATE_REPLACE_STATE
- 20% MUTATE_SWAP_STATES
- 20% MUTATE_INIT_STATE
The default values were chosen based on my past experience. You can
define your own <i>mutation_selector</i> with different weights,
and pass it to <i>simple_fsm::mutate</i>.
\sa roulette_wheel
*/
class mutation_selector
{
public:
//! Creation constructor
/*!
Constructs a new mutation_selector with the default weights
for the roulette wheel.
*/
mutation_selector()
: m_selector(NULL)
{
static const double default_weights [] = { 20.0, 20.0, 20.0, 20.0, 20.0 };
m_selector = new roulette_wheel(default_weights,5);
}
//! Copy constructor
/*!
Creates a copy of an existing object.
\param a_source - The source object to be copied
*/
mutation_selector(const mutation_selector & a_source)
: m_selector(new roulette_wheel(*a_source.m_selector))
{
// nada
}
//! Destructor
/*!
Destroys a mutation selector, freeing resources.
*/
~mutation_selector()
{
delete m_selector;
}
//! Assignment operator
/*!
Assigns the state of one mutation selector to another.
\param a_source - The source object
*/
mutation_selector & operator = (const mutation_selector & a_source)
{
m_selector = new roulette_wheel(*a_source.m_selector);
return *this;
}
//! Change a given weight
/*!
Changes a specific mutation weight to a new value.
\param a_type - Identifies the specific mutation weight to be set
\param a_new_weight - New weight to be assigned
*/
void set_weight(mutation_id a_type, double & a_new_weight)
{
m_selector->set_weight(a_type,a_new_weight);
}
//! Get a mutation index
/*
Returns an index, shosen by roulette wheel, corresponding to a
<i>mutation_id</i> value.
\return A mutation_id index
*/
size_t get_index() const
{
return m_selector->get_index();
}
private:
// The actual roulette wheel
roulette_wheel * m_selector;
};
};
}
#endif
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