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source: cpp/frams/genetics/f4/f4_oper.cpp @ 906

Last change on this file since 906 was 899, checked in by Maciej Komosinski, 5 years ago
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Rev	Line
[286]	1	// This file is a part of Framsticks SDK. http://www.framsticks.com/
[671]	2	// Copyright (C) 1999-2017 Maciej Komosinski and Szymon Ulatowski.
[286]	3	// See LICENSE.txt for details.
[193]	4
[196]	5	// Copyright (C) 1999,2000 Adam Rotaru-Varga (adam_rotaru@yahoo.com), GNU LGPL
	6	// Copyright (C) since 2001 Maciej Komosinski
[760]	7	// 2018, Grzegorz Latosinski, added support for new API for neuron types and their properties
[193]	8
[779]	9	#include "f4_oper.h"
[196]	10	#include <frams/util/sstring.h>
[375]	11	#include <common/log.h>
[196]	12
[193]	13	#include <stdio.h>
	14	#include <stdlib.h>
[196]	15	#include "common/nonstd_math.h"
[193]	16	#include <string.h>
	17
	18
[772]	19	const char *Geno_f4::all_modifiers = F14_MODIFIERS ","; //comma in f4 is handled the same way (simple node, F4_ADD_SIMP) as modifiers
[674]	20
[767]	21	// codes that can be changed (apart from being added/deleted)
	22	#define MUT_CHAN_CODES "<[#"
	23	#define REP_MAXCOUNT 19
	24
[193]	25	#define FIELDSTRUCT Geno_f4
	26
[196]	27	static ParamEntry GENO4param_tab[] =
[193]	28	{
[674]	29	{ "Genetics: f4", 1, F4_COUNT + F4_ADD_COUNT + 1, },
[196]	30	{ "f4_mut_add", 0, 0, "Add node", "f 0 100 50", FIELD(prob[F4_ADD]), "mutation: probability of adding a node", },
	31	{ "f4_mut_add_div", 0, 0, "- add division", "f 0 100 20", FIELD(probadd[F4_ADD_DIV]), "add node mutation: probability of adding a division", },
	32	{ "f4_mut_add_conn", 0, 0, "- add connection", "f 0 100 15", FIELD(probadd[F4_ADD_CONN]), "add node mutation: probability of adding a neural connection", },
	33	{ "f4_mut_add_neupar", 0, 0, "- add neuron property", "f 0 100 5", FIELD(probadd[F4_ADD_NEUPAR]), "add node mutation: probability of adding a neuron property/modifier", },
	34	{ "f4_mut_add_rep", 0, 0, "- add repetition", "f 0 100 10", FIELD(probadd[F4_ADD_REP]), "add node mutation: probability of adding a repetition", },
	35	{ "f4_mut_add_simp", 0, 0, "- add simple node", "f 0 100 50", FIELD(probadd[F4_ADD_SIMP]), "add node mutation: probability of adding a random, simple gene", },
	36	{ "f4_mut_del", 0, 0, "Delete node", "f 0 100 20", FIELD(prob[F4_DEL]), "mutation: probability of deleting a node", },
	37	{ "f4_mut_mod", 0, 0, "Modify node", "f 0 100 30", FIELD(prob[F4_MOD]), "mutation: probability of changing a node", },
[772]	38	{ "f4_mut_exmod", 1, 0, "Excluded modifiers", "s 0 30", FIELD(excluded_modifiers), "Modifiers that will not be added nor deleted during mutation\n(all: " F14_MODIFIERS ")", },
[196]	39	{ 0, },
[193]	40	};
	41
	42	#undef FIELDSTRUCT
	43
	44
	45	Geno_f4::Geno_f4()
	46	{
[196]	47	supported_format = '4';
	48	par.setParamTab(GENO4param_tab);
	49	par.select(this);
	50	par.setDefault();
[193]	51
[199]	52	mutation_method_names = new const char*[F4_COUNT + F4_ADD_COUNT - 1];
[196]	53	int index = 0;
	54	mutation_method_names[index++] = "added division";
	55	mutation_method_names[index++] = "added neural connection";
	56	mutation_method_names[index++] = "added neuron property";
	57	mutation_method_names[index++] = "added repetition gene";
	58	mutation_method_names[index++] = "added a simple node";
	59	mutation_method_names[index++] = "deleted a node";
	60	mutation_method_names[index++] = "modified a node";
[375]	61	if (index != F4_COUNT + F4_ADD_COUNT - 1) logMessage("Geno_f4", "Constructor", 3, "Mutation names init error");
[193]	62	}
	63
[674]	64	void Geno_f4::setDefaults()
	65	{
[772]	66	excluded_modifiers = F14_MODIFIERS_RARE F14_MODIFIERS_VISUAL;
[674]	67	}
	68
[774]	69	int Geno_f4::ValidateRec(f4_node *geno, int retrycount) const
[193]	70	{
[196]	71	// ! the genotype is geno->child (not geno) !
	72	// build from it with repair on
[193]	73
[196]	74	f4_Cells cells(geno->child, 1);
	75	cells.simulate(); //we should simulate?!
[193]	76
[196]	77	// errors not fixed:
	78	if (GENOPER_OPFAIL == cells.geterror())
	79	{
	80	if (cells.geterrorpos() >= 0) return 1 + cells.geterrorpos();
	81	return GENOPER_OPFAIL;
	82	}
	83	// errors can be fixed
	84	if (GENOPER_REPAIR == cells.geterror())
	85	{
	86	cells.repairGeno(geno, 1);
	87	// note: geno might have been fixed
	88	// check again
	89	int res2 = GENOPER_OK;
	90	if (retrycount > 0)
	91	res2 = ValidateRec(geno, retrycount - 1);
[193]	92
[196]	93	if (res2 == GENOPER_OK) return GENOPER_REPAIR;
	94	return res2;
	95	}
	96	// no errors:
	97	return GENOPER_OK;
[193]	98	}
	99
	100
[513]	101	int Geno_f4::validate(char & geno, const char genoname)
[193]	102	{
[196]	103	// convert geno to tree, then try to validate 20 times
	104	f4_node root;
	105	if (f4_processrec(geno, 0, &root) \|\| root.childCount() != 1) return GENOPER_OK; // cannot repair
	106	if (ValidateRec(&root, 20) == GENOPER_REPAIR) // if repaired, make it back to string
	107	{
	108	geno[0] = 0;
	109	root.child->sprintAdj(geno);
	110	}
	111	return GENOPER_OK;
[193]	112	}
	113
	114
[774]	115	int Geno_f4::checkValidity(const char* geno, const char *genoname)
[193]	116	{
[196]	117	f4_node root;
	118	int res = f4_processrec(geno, 0, &root);
	119	if (res) return res; // errorpos, >0
	120	if (root.childCount() != 1) return 1; //earlier: GENOPER_OPFAIL
	121	f4_Cells cells(root.child, 0);
	122	cells.simulate();
	123	if (cells.geterror() == GENOPER_OPFAIL \|\| cells.geterror() == GENOPER_REPAIR)
	124	{
	125	if (cells.geterrorpos() >= 0) return 1 + cells.geterrorpos();
	126	else return 1; //earlier: GENOPER_OPFAIL;
	127	}
	128	else return GENOPER_OK;
[193]	129	}
	130
	131
[196]	132	int Geno_f4::MutateOne(f4_node *& g, int &method) const
[193]	133	{
[196]	134	// ! the genotype is g->child (not g) !
[193]	135
[196]	136	// do the mutation
	137	// pick a random node
[760]	138	f4_node *n1 = g->child->randomNode();
	139	vector<NeuroClass*> neulist;
[196]	140	//DB( printf("%c\n", n1->name); )
[760]	141	int neuronid = -1;
[193]	142
[196]	143	switch (roulette(prob, F4_COUNT))
	144	{
	145	case F4_ADD:
	146	{
	147	// add a node
	148	switch (method = roulette(probadd, F4_ADD_COUNT))
	149	{
	150	case F4_ADD_DIV:
	151	{
	152	// add division ('<')
[760]	153	f4_node *n3 = n1->parent;
[196]	154	n3->removeChild(n1);
[760]	155	f4_node *n2 = new f4_node('<', n3, n3->pos);
[196]	156	n2->addChild(n1);
	157	// new cell is stick or neuron
	158	// "X>" or "N>"
[760]	159	f4_node *n5 = NULL;
[896]	160	double pr = rndDouble(1);
[196]	161	pr -= 0.5;
[760]	162	if (pr < 0) n5 = new f4_node('X', n2, n2->pos);
[196]	163	else
	164	{
[760]	165	// make neuron
[774]	166	NeuroClass *rndclass = GenoOperators::getRandomNeuroClass();
[760]	167	if (rndclass == NULL)
[196]	168	{
[760]	169	n5 = new f4_node('X', n2, n2->pos);
[196]	170	}
[760]	171	else
	172	{
[767]	173	f4_node *n4 = new f4_node(rndclass->getName().c_str(), n2, n2->pos);
[760]	174	if (rndclass->getPreferredInputs() != 0)
	175	{
	176	neuronid = -1;
	177	for (int i = 0; i < g->count(); i++)
	178	{
[774]	179	f4_node *gcur = g->ordNode(i);
	180	char* temp = (char*)gcur->name.c_str();
	181	NeuroClass *neuclass = GenoOperators::parseNeuroClass(temp);
[760]	182	if (neuclass != NULL)
	183	{
	184	neulist.push_back(neuclass);
	185	}
	186	if (g->ordNode(i) == n3)
	187	{
[773]	188	neuronid = neulist.size() - 1;
[760]	189	}
	190	}
	191	if (neuronid == -1)
	192	{
	193	return GENOPER_OPFAIL;
	194	}
	195	n5 = new f4_node('[', n4, n2->pos);
	196	linkNodeMakeRandom(n5, neuronid, neulist);
	197	}
	198	else {
	199	n5 = n4;
	200	}
	201	}
[196]	202	}
[760]	203	new f4_node('>', n5, n5->pos);
[196]	204	n1->parent = n2;
	205	// now with 50% chance swap children
[896]	206	if (rndUint(2) == 0)
[196]	207	{
	208	n3 = n2->child;
	209	n2->child = n2->child2;
	210	n2->child2 = n3;
	211	}
	212	}
	213	break;
	214	case F4_ADD_CONN:
	215	{
	216	// add link
[774]	217	f4_node *par = n1->parent;
	218	char* temp = (char*)par->name.c_str();
	219	NeuroClass *neuclass = GenoOperators::parseNeuroClass(temp);
[760]	220	if (neuclass != NULL)
	221	{
	222	n1->parent->removeChild(n1);
	223	f4_node *n2 = new f4_node('[', n1->parent, n1->parent->pos);
	224	n2->addChild(n1);
	225	n1->parent = n2;
	226	neuronid = -1;
	227	for (int i = 0; i < g->count(); i++)
	228	{
	229	f4_node *gcur = g->ordNode(i);
	230	temp = (char*)gcur->name.c_str();
	231	NeuroClass *neuclass = GenoOperators::parseNeuroClass(temp);
	232	if (neuclass != NULL)
	233	{
	234	neulist.push_back(neuclass);
	235	}
	236	if (gcur == par)
	237	{
[773]	238	neuronid = neulist.size() - 1;
[760]	239	}
	240	}
	241	if (neuronid == -1)
	242	{
	243	return GENOPER_OPFAIL;
	244	}
	245	linkNodeMakeRandom(n2, neuronid, neulist);
	246	}
[196]	247	}
	248	break;
	249	case F4_ADD_NEUPAR:
	250	{
	251	// add neuron modifier
	252	n1->parent->removeChild(n1);
[760]	253	f4_node *n2 = new f4_node(':', n1->parent, n1->parent->pos);
[196]	254	nparNodeMakeRandom(n2);
	255	n2->addChild(n1);
	256	n1->parent = n2;
	257	}
	258	break;
	259	case F4_ADD_REP:
	260	{
	261	// add repetition ('#')
	262	// repeated code (left child) is the original, right child is empty, count is 2
[760]	263	f4_node *n3 = n1->parent;
[196]	264	n3->removeChild(n1);
[760]	265	f4_node *n2 = new f4_node('#', n3, n3->pos);
[196]	266	n2->i1 = 2;
	267	n2->addChild(n1);
	268	new f4_node('>', n2, n2->pos);
	269	n1->parent = n2;
	270	}
	271	break;
	272	case F4_ADD_SIMP:
	273	{
	274	// add simple node
	275	// choose a simple node from ADD_SIMPLE_CODES
	276	n1->parent->removeChild(n1);
[896]	277	//f4_node *n2 = new f4_node(ADD_SIMPLE_CODES[rndUint(strlen(ADD_SIMPLE_CODES))], n1->parent, n1->parent->pos);
[767]	278	int modifierid = GenoOperators::getRandomChar(all_modifiers, excluded_modifiers.c_str());
	279	f4_node *n2 = new f4_node(all_modifiers[modifierid], n1->parent, n1->parent->pos);
[196]	280	n2->addChild(n1);
	281	n1->parent = n2;
	282	}
	283	break;
	284	}
	285	}
	286	break;
[193]	287
[196]	288	case F4_DEL:
	289	{
	290	method = F4_ADD_COUNT - 1 + F4_DEL;
	291	// delete a node
	292	// must pick a node with parent, and at least one child
	293	// already picked a node, but repeat may be needed
[671]	294	for (int i = 0; i < 10; i++)
	295	{
[196]	296	if ((NULL != n1->parent) && (g != n1->parent))
	297	if (NULL != n1->child)
	298	break;
	299	// try a new one
	300	n1 = g->child->randomNode();
	301	}
	302	if ((NULL != n1->parent) && (g != n1->parent))
	303	{
	304	switch (n1->childCount())
	305	{
	306	case 0: break;
	307	case 1: // one child
	308	{
[760]	309	f4_node *n2 = n1->parent;
[196]	310	n2->removeChild(n1);
[671]	311	if (NULL != n1->child)
	312	{
[196]	313	n1->child->parent = n2;
	314	n2->addChild(n1->child);
	315	n1->child = NULL;
	316	}
[671]	317	if (NULL != n1->child2)
	318	{
[196]	319	n1->child2->parent = n2;
	320	n2->addChild(n1->child2);
	321	n1->child2 = NULL;
	322	}
	323	// destroy n1
	324	n1->parent = NULL;
	325	delete n1;
	326	}
	327	break;
[193]	328
[196]	329	case 2: // two children
	330	{
	331	// two children
[760]	332	f4_node *n2 = n1->parent;
[196]	333	n2->removeChild(n1);
	334	// n1 has two children. pick one randomly 50-50, destroy other
[896]	335	if (rndUint(2) == 0)
[196]	336	{
	337	n1->child->parent = n2;
	338	n2->addChild(n1->child);
	339	n1->child = NULL;
	340	n1->child2->parent = NULL;
	341	}
	342	else
	343	{
	344	n1->child2->parent = n2;
	345	n2->addChild(n1->child2);
	346	n1->child2 = NULL;
	347	n1->child->parent = NULL;
	348	}
	349	// destroy n1
	350	n1->parent = NULL;
	351	delete n1;
	352	}
	353	break;
	354	}
	355	}
	356	else return GENOPER_OPFAIL;
	357	}
	358	break;
	359	case F4_MOD:
	360	{
	361	method = F4_ADD_COUNT - 1 + F4_MOD;
	362	// change a node
	363	// the only nodes that are modifiable are MUT_CHAN_CODES
	364	// try to get a modifiable node
	365	// already picked a node, but repeat may be needed
	366	int i = 0;
	367	while (1)
	368	{
[760]	369	if (strchr(MUT_CHAN_CODES, n1->name[0])) break;
[196]	370	// try a new one
	371	n1 = g->child->randomNode();
	372	i++;
	373	if (i >= 20) return GENOPER_OPFAIL;
	374	}
[760]	375	switch (n1->name[0])
[671]	376	{
[196]	377	case '<':
[760]	378	{
[196]	379	// swap children
[760]	380	f4_node *n2 = n1->child; n1->child = n1->child2; n1->child2 = n2;
	381	}
[196]	382	break;
	383	case '[':
[760]	384	{
	385	neuronid = -1;
	386	for (int i = 0; i < g->count(); i++)
	387	{
	388	f4_node *gcur = g->ordNode(i);
	389	char temp = (char)gcur->name.c_str();
	390	NeuroClass *neuclass = GenoOperators::parseNeuroClass(temp);
	391	if (neuclass != NULL)
	392	{
	393	neulist.push_back(neuclass);
	394	}
	395	if (gcur == n1)
	396	{
[773]	397	neuronid = neulist.size() - 1;
[760]	398	}
	399	}
	400	if (neuronid == -1)
	401	{
	402	return GENOPER_OPFAIL;
	403	}
	404	linkNodeChangeRandom(n1, neuronid, neulist);
	405	}
[196]	406	break;
[760]	407
[196]	408	case '#':
[760]	409	{
[196]	410	repeatNodeChangeRandom(n1);
[760]	411	}
[196]	412	break;
	413	}
	414	}
	415	break;
[193]	416
[196]	417	default: //no mutations allowed?
	418	return GENOPER_OPFAIL;
	419	}
[193]	420
[196]	421	return GENOPER_OK;
[193]	422	}
	423
	424	// make a random [ node
[760]	425	void Geno_f4::linkNodeMakeRandom(f4_node nn, int neuid, vector<NeuroClass> neulist) const
[193]	426	{
[196]	427	float prob1;
[760]	428	NeuroClass *nc = NULL;
[193]	429
[196]	430	// 35% chance one of *GTS
[896]	431	prob1 = rndDouble(1);
[196]	432	prob1 -= 0.35f;
	433	if (prob1 < 0)
	434	{
	435	// '*', 'G', 'T', or 'S', 1/4 chance each
[773]	436	nc = GenoOperators::getRandomNeuroClassWithOutputAndNoInputs();
[196]	437	}
[760]	438	if (nc != NULL)
[671]	439	{
[760]	440	nn->i1 = 1;
	441	nn->s1 = nc->getName().c_str();
	442	nn->l1 = 0;
	443	}
	444	else
	445	{
[196]	446	// relative input link
[760]	447	int id = GenoOperators::getRandomNeuroClassWithOutput(neulist);
	448	int relid = neuid - id;
	449	nn->l1 = relid;
[899]	450	//nn->l1 = (int)(4.0f * (rndDouble(1) - 0.5f));
[196]	451	}
	452	// weight
[773]	453	nn->f1 = GenoOperators::mutateNeuProperty(nn->f1, NULL, -1);
[899]	454	//nn->f1 = 10.0f * (rndDouble(1) - 0.5f);
[193]	455	}
	456
	457	// change a [ node
[774]	458	void Geno_f4::linkNodeChangeRandom(f4_node nn, int neuid, std::vector<NeuroClass> neulist) const //rewritten by M.K. - should work as before (not tested)
[193]	459	{
[196]	460	double probs[3] = { 0.1, 0.3, 0.6 };
[760]	461	NeuroClass *cl;
[196]	462	// 10% change type
	463	// 30% change link
	464	// 60% change weight
[193]	465
[196]	466	switch (roulette(probs, 3))
	467	{
	468	case 0: // change type
[760]	469	// 80% for link, 20% for random sensor
[896]	470	if (rndDouble(1) < 0.2f)
[760]	471	{
	472	cl = GenoOperators::getRandomNeuroClassWithOutputAndNoInputs();
	473	if (cl != NULL)
	474	{
	475	nn->i1 = 1;
	476	nn->s1 = cl->name.c_str();
	477	nn->l1 = 0;
	478	}
	479	}
[196]	480	break;
	481	case 1: // change link
	482	if (0 == nn->i1) // relative input link
[760]	483	{
	484	int id = GenoOperators::getRandomNeuroClassWithOutput(neulist);
	485	nn->l1 = neuid - id;
	486	}
[899]	487	//nn->l1 += (int)(2.0f * (rndDouble(1) - 0.5f));
[196]	488	break;
	489	case 2: // change weight
[773]	490	nn->f1 = GenoOperators::mutateNeuProperty(nn->f1, NULL, -1);
[899]	491	//nn->f1 += 1.0f * (rndDouble(1) - 0.5f);
[196]	492	break;
	493	}
[193]	494	}
	495
	496	// make a random : node
[774]	497	void Geno_f4::nparNodeMakeRandom(f4_node *nn) const
[193]	498	{
[896]	499	int sign = (int)rndDouble(2);
	500	int param = (int)rndDouble(3);
[196]	501	if (param > 2) param = 2;
	502	nn->l1 = sign;
	503	nn->i1 = "!=/"[param];
[193]	504	}
	505
	506	// change a repeat # node
[774]	507	void Geno_f4::repeatNodeChangeRandom(f4_node *nn) const
[193]	508	{
[196]	509	int count;
	510	float prob1;
[193]	511
[196]	512	// change count
	513	count = nn->i1;
[896]	514	prob1 = rndDouble(1);
[196]	515	if (prob1 < 0.5f) count++;
	516	else count--;
[671]	517	if (count < 1) count = 1;
	518	if (count > REP_MAXCOUNT) count = REP_MAXCOUNT;
[196]	519	nn->i1 = count;
[193]	520	}
	521
	522
[196]	523	int Geno_f4::MutateOneValid(f4_node *& g, int &method) const
[193]	524	// mutate one, until a valid genotype is obtained
	525	{
[196]	526	// ! the genotype is g->child (not g) !
	527	int i, res;
[774]	528	f4_node *gcopy = NULL;
[196]	529	// try this max 20 times:
	530	// copy, mutate, then validate
[193]	531
[196]	532	for (i = 0; i < 20; i++)
	533	{
	534	gcopy = g->duplicate();
[193]	535
[196]	536	res = MutateOne(gcopy, method);
[193]	537
[196]	538	if (GENOPER_OK != res)
	539	{
	540	// mutation failed, try again
	541	delete gcopy;
	542	continue; // for
	543	}
	544	// try to validate it
	545	res = ValidateRec(gcopy, 10);
	546	// accept if it is OK, or was repaired
	547	if (GENOPER_OK == res)
	548	//(GENOPER_REPAIR == res)
	549	{
	550	// destroy the original one
	551	g->destroy();
	552	// make it the new one
	553	g = gcopy;
	554	gcopy->child = NULL;
	555	gcopy->child2 = NULL;
	556	delete gcopy;
	557	res = GENOPER_OK;
	558	goto retm1v;
	559	}
	560	delete gcopy;
	561	}
	562	// attempts failed
	563	res = GENOPER_OPFAIL;
[193]	564	retm1v:
[196]	565	return res;
[193]	566	}
	567
	568
[196]	569	int Geno_f4::mutate(char *& g, float & chg, int &method)
[193]	570	{
[196]	571	f4_node *root = new f4_node;
	572	if (f4_processrec(g, 0, root) \|\| root->childCount() != 1)
	573	{
[671]	574	delete root;
	575	return GENOPER_OPFAIL;
[196]	576	} // could not convert or bad: fail
	577	// mutate one node, set chg as this percent
	578	chg = 1.0 / float(root->child->count());
	579	if (MutateOneValid(root, method) != GENOPER_OK)
	580	{
[671]	581	delete root;
	582	return GENOPER_OPFAIL;
[196]	583	}
	584	// OK, convert back to string
	585	g[0] = 0;
	586	root->child->sprintAdj(g);
	587	delete root;
	588	return GENOPER_OK;
[193]	589	}
	590
	591
	592	/*
	593	int Geno_f4::MutateMany(char *& g, float & chg)
	594	// check if original is valid, then
	595	// make a number of mutations
	596	{
[196]	597	int res, n, i;
	598	int totNodes = 0;
	599	int maxToMut = 0;
[193]	600
[196]	601	// convert to tree
[774]	602	f4_node *root;
[196]	603	root = new f4_node();
	604	res = f4_processrec(g, 0, root);
	605	if (res) {
	606	// could not convert, fail
	607	goto retm;
	608	}
	609	if (1 != root->childCount()) {
	610	res = GENOPER_OPFAIL;
	611	goto retm;
	612	}
[193]	613
[196]	614	// check if original is valid
	615	res = ValidateRec( root, 20 );
	616	// might have been repaired!
	617	if (GENOPER_REPAIR==res) {
	618	res = GENOPER_OK;
	619	}
	620	if (GENOPER_OK != res) {
	621	goto retm;
	622	}
[193]	623
[196]	624	// decide number of nodes to mutate
	625	// decide maximum number of nodes to mutate: 0.25*nodes, min 2
	626	totNodes = root->child->count();
	627	maxToMut = (int)( 0.25f * totNodes);
	628	if (maxToMut<2) maxToMut=2;
	629	if (maxToMut>totNodes) maxToMut=totNodes;
[193]	630
[196]	631	// decide number of nodes to mutate
[899]	632	n = (int)( 0.5f + rndDouble(1) * maxToMut );
[196]	633	if (n<1) n=1;
	634	if (n>totNodes) n=totNodes;
	635	// set chg as this percent
	636	chg = ((float)n) / ((float)totNodes);
	637	for (i=0; i<n; i++)
	638	{
	639	res = MutateOneValid(root);
	640	if (GENOPER_OK != res)
	641	{
	642	res = GENOPER_OPFAIL;
	643	goto retm;
	644	}
	645	}
	646	// OK, convert back to string
	647	g[0]=0;
	648	root->child->sprintAdj(g);
[193]	649	retm:
[196]	650	delete root;
	651	return res;
[193]	652	}
	653	*/
	654
	655
[774]	656	int Geno_f4::CrossOverOne(f4_node g1, f4_node g2, float chg) const
[193]	657	{
[196]	658	// ! the genotypes are g1->child and g2->child (not g1 g2) !
	659	// single offspring in g1
	660	int smin, smax;
	661	float size;
[774]	662	f4_node n1, n2, n1p, n2p;
[193]	663
[196]	664	// determine desired size
	665	size = (1 - chg) * (float)g1->count();
	666	smin = (int)(size*0.9f - 1);
	667	smax = (int)(size*1.1f + 1);
	668	// get a random node with desired size
	669	n1 = g1->child->randomNodeWithSize(smin, smax);
[193]	670
[196]	671	// determine desired size
	672	size = (1 - chg) * (float)g2->count();
	673	smin = (int)(size*0.9f - 1);
	674	smax = (int)(size*1.1f + 1);
	675	// get a random node with desired size
	676	n2 = g2->child->randomNodeWithSize(smin, smax);
[193]	677
[196]	678	// exchange the two nodes:
	679	n1p = n1->parent;
	680	n2p = n2->parent;
	681	n1p->removeChild(n1);
	682	n1p->addChild(n2);
	683	n2p->removeChild(n2);
	684	n2p->addChild(n1);
	685	n1->parent = n2p;
	686	n2->parent = n1p;
[193]	687
[196]	688	return GENOPER_OK;
[193]	689	}
	690
	691	int Geno_f4::crossOver(char &g1, char &g2, float &chg1, float &chg2)
	692	{
[196]	693	f4_node root1, root2, copy1, copy2;
[193]	694
[196]	695	// convert genotype strings into tree structures
	696	if (f4_processrec(g1, 0, &root1) \|\| (root1.childCount() != 1)) return GENOPER_OPFAIL;
	697	if (f4_processrec(g2, 0, &root2) \|\| (root2.childCount() != 1)) return GENOPER_OPFAIL;
[193]	698
[196]	699	// decide amounts of crossover, 0.25-0.75
	700	// adam: seems 0.1-0.9 -- MacKo
[896]	701	chg1 = 0.1 + rndDouble(0.8);
	702	chg2 = 0.1 + rndDouble(0.8);
[193]	703
[196]	704	copy1 = root1.duplicate();
	705	if (CrossOverOne(copy1, &root2, chg1) != GENOPER_OK) { delete copy1; copy1 = NULL; }
	706	copy2 = root2.duplicate();
	707	if (CrossOverOne(copy2, &root1, chg2) != GENOPER_OK) { delete copy2; copy2 = NULL; }
[193]	708
[196]	709	g1[0] = 0;
	710	g2[0] = 0;
	711	if (copy1) { copy1->child->sprintAdj(g1); delete copy1; }
	712	if (copy2) { copy2->child->sprintAdj(g2); delete copy2; }
	713	if (g1[0] \|\| g2[0]) return GENOPER_OK; else return GENOPER_OPFAIL;
[193]	714	}
	715
[247]	716	uint32_t Geno_f4::style(const char *g, int pos)
[193]	717	{
[196]	718	char ch = g[pos];
[773]	719
[196]	720	// style categories
[772]	721	#define STYL4CAT_MODIFIC F14_MODIFIERS ","
[773]	722	#define STYL4CAT_NEUMOD "[]:+-/!="
	723	#define STYL4CAT_NEUSPECIAL "\|@*"
[196]	724	#define STYL4CAT_DIGIT "0123456789."
	725	#define STYL4CAT_REST "XN<># "
[767]	726
[773]	727	if (!isalpha(ch) && !strchr(STYL4CAT_MODIFIC STYL4CAT_NEUMOD STYL4CAT_NEUSPECIAL STYL4CAT_DIGIT STYL4CAT_REST "\t", ch))
	728	{
[196]	729	return GENSTYLE_CS(0, GENSTYLE_INVALID);
[767]	730	}
[247]	731	uint32_t style = GENSTYLE_CS(0, GENSTYLE_STRIKEOUT); //default, should be changed below
[773]	732	if (strchr("X ", ch)) style = GENSTYLE_CS(0, GENSTYLE_NONE);
	733	else if (strchr("N", ch)) style = GENSTYLE_RGBS(0, 200, 0, GENSTYLE_NONE);
	734	else if (strchr("<", ch)) style = GENSTYLE_RGBS(0, 0, 200, GENSTYLE_BOLD);
	735	else if (strchr(">", ch)) style = GENSTYLE_RGBS(0, 0, 100, GENSTYLE_NONE);
[771]	736	else if (strchr(STYL4CAT_DIGIT, ch)) style = GENSTYLE_RGBS(100, 100, 100, GENSTYLE_NONE);
	737	else if (strchr(STYL4CAT_MODIFIC, ch)) style = GENSTYLE_RGBS(100, 100, 100, GENSTYLE_NONE);
	738	else if (strchr(STYL4CAT_NEUMOD, ch)) style = GENSTYLE_RGBS(0, 150, 0, GENSTYLE_NONE);
[773]	739	if (isalpha(ch) \|\| strchr(STYL4CAT_NEUSPECIAL, ch))
	740	{
	741	while (pos > 0)
	742	{
	743	pos--;
	744	if (!(isalpha(g[pos]) \|\| strchr(STYL4CAT_NEUSPECIAL, ch)))
	745	{
	746	if (isupper(g[pos + 1]) && (g[pos] == ':' \|\| g[pos] == '[')) // name of neuron class
	747	style = GENSTYLE_RGBS(150, 0, 150, GENSTYLE_ITALIC);
	748	else // property
	749	style = GENSTYLE_RGBS(100, 100, 100, GENSTYLE_NONE);
[767]	750	}
	751	}
	752	}
[196]	753	return style;
[193]	754	}

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