source: cpp/frams/genetics/f9/f9_oper.cpp @ 899

Last change on this file since 899 was 899, checked in by Maciej Komosinski, 12 days ago

Code formatting

  • Property svn:eol-style set to native
File size: 3.8 KB
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1// This file is a part of Framsticks SDK.  http://www.framsticks.com/
2// Copyright (C) 1999-2015  Maciej Komosinski and Szymon Ulatowski.
3// See LICENSE.txt for details.
4
5#include "f9_oper.h"
6#include "f9_conv.h"
7#include <common/nonstd.h> //rndUint, rndDouble
8
9
10#define FIELDSTRUCT GenoOper_f9
11static ParamEntry GENOf9param_tab[] =
12{
13        { "Genetics: f9", 1, 1, },
14        { "f9_mut", 0, 0, "Mutation probability", "f 0 1 0.1", FIELD(mut_prob), "How many genes should be mutated during single mutation (1=all genes, 0.1=ten percent)", },
15        { 0, },
16};
17#undef FIELDSTRUCT
18
19
20GenoOper_f9::GenoOper_f9()
21{
22        par.setParamTab(GENOf9param_tab);
23        par.select(this);
24        par.setDefault();
25        supported_format = '9';
26}
27
28int GenoOper_f9::checkValidity(const char* gene, const char *genoname)
29{
30        if (!gene[0]) return 1; //empty is not valid
31        bool ok = true;
32        size_t i;
33        for (i = 0; i < strlen(gene); i++) if (!strchr(turtle_commands_f9, gene[i])) { ok = false; break; }
34        return ok ? GENOPER_OK : i + 1;
35}
36
37///Remove all invalid letters from the genotype
38int GenoOper_f9::validate(char *&gene, const char *genoname)
39{
40        SString validated; //new genotype (everything except turtle_commands_f9 is skipped)
41        for (size_t i = 0; i < strlen(gene); i++)
42                if (strchr(turtle_commands_f9, gene[i])) validated += gene[i];  //validated contains only turtle_commands_f9
43        free(gene);
44        gene = strdup(validated.c_str()); //reallocate
45        return GENOPER_OK;
46}
47
48///Very simple mutation
49int GenoOper_f9::mutate(char *&gene, float &chg, int &method)
50{
51        method = 0;
52        int changes = 0, len = strlen(gene);
53        int symbols = strlen(turtle_commands_f9);
54
55        for (int i = 0; i < len; i++)
56        {
57                if (rndDouble(1) < mut_prob) //normalize prob with the length of the genotype
58                {
59                        char oldgene = gene[i];
60                        gene[i] = turtle_commands_f9[rndUint(symbols)];
61                        if (gene[i] != oldgene) changes++;
62                }
63        }
64
65        if (rndDouble(1) < mut_prob) //add or delete a random char
66        {
67                SString newgeno(gene);
68                if (rndUint(2) == 0) //add
69                {
70                        int symbols = strlen(turtle_commands_f9);
71                        int p = rndUint(len + 1);  //random location
72                        //printf("before add: %s\n",(const char*)newgeno);
73                        newgeno = newgeno.substr(0, p) + SString(turtle_commands_f9 + rndUint(symbols), 1) + newgeno.substr(p);
74                        //printf("after add: %s\n",(const char*)newgeno);
75                        changes++;
76                }
77                else if (len > 1) //delete
78                {
79                        int p = rndUint(len);  //random location
80                        //printf("before delete: %s\n",(const char*)newgeno);
81                        newgeno = newgeno.substr(0, p) + newgeno.substr(p + 1);
82                        //printf("after delete: %s\n",(const char*)newgeno);
83                        changes++;
84                }
85                free(gene);
86                gene = strdup(newgeno.c_str()); //reallocate
87        }
88
89        chg = (float)changes / len;
90        return changes > 0 ? GENOPER_OK : GENOPER_OPFAIL; //no changes => OPFAIL so that GenMan will call mutate again
91}
92
93///A simple one-point crossover
94int GenoOper_f9::crossOver(char *&g1, char *&g2, float& chg1, float& chg2)
95{
96        int len1 = strlen(g1), len2 = strlen(g2);
97        int p1 = rndUint(len1);  //random cut point for first genotype
98        int p2 = rndUint(len2);  //random cut point for second genotype
99        char *child1 = (char*)malloc(p1 + len2 - p2 + 1);
100        char *child2 = (char*)malloc(p2 + len1 - p1 + 1);
101        strncpy(child1, g1, p1);   strcpy(child1 + p1, g2 + p2);
102        strncpy(child2, g2, p2);   strcpy(child2 + p2, g1 + p1);
103        free(g1); g1 = child1;
104        free(g2); g2 = child2;
105        chg1 = (float)p1 / strlen(child1);
106        chg2 = (float)p2 / strlen(child2);
107        return GENOPER_OK;
108}
109
110///Applying some colors and font styles...
111uint32_t GenoOper_f9::style(const char *g, int pos)
112{
113        char ch = g[pos];
114        uint32_t style = GENSTYLE_CS(0, GENSTYLE_INVALID); //default, should be changed below
115        char *ptr = strchr((char*)turtle_commands_f9, ch);
116        if (ptr)
117        {
118                int pos = ptr - turtle_commands_f9;
119                int axis = pos / 2;
120                style = GENSTYLE_RGBS(axis == 0 ? 200 : 0, axis == 1 ? 200 : 0, axis == 2 ? 200 : 0, GENSTYLE_NONE);
121        }
122        return style;
123}
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