void player::mutate()
{
bool force_bad = one_in(3);
bool force_good = false;
if (has_trait("ROBUST") && force_bad) {
// Robust Genetics gives you a 33% chance for a good mutation,
// instead of the 33% chance of a bad one.
force_bad = false;
force_good = true;
}
// Determine the highest mutation categorie
std::string cat = get_highest_category();
// See if we should ugrade/extend an existing mutation...
std::vector<std::string> upgrades;
// ... or remove one that is not in our highest category
std::vector<std::string> downgrades;
// For each mutation...
for (std::map<std::string, trait>::iterator iter = traits.begin(); iter != traits.end(); ++iter) {
std::string base_mutation = iter->first;
// ...that we have...
if (has_trait(base_mutation)) {
// ...consider the mutations that replace it.
for (int i = 0; i < mutation_data[base_mutation].replacements.size(); i++) {
std::string mutation = mutation_data[base_mutation].replacements[i];
if (mutation_ok(mutation, force_good, force_bad)) {
upgrades.push_back(mutation);
}
}
// ...consider the mutations that add to it.
for (int i = 0; i < mutation_data[base_mutation].additions.size(); i++) {
std::string mutation = mutation_data[base_mutation].additions[i];
if (mutation_ok(mutation, force_good, force_bad)) {
upgrades.push_back(mutation);
}
}
// ...consider whether its in our highest category
if( has_trait(base_mutation) && !has_base_trait(base_mutation) ) { // Starting traits don't count toward categories
std::vector<std::string> group = mutations_category[cat];
bool in_cat = false;
for (int j = 0; j < group.size(); j++) {
if (group[j] == base_mutation) {
in_cat = true;
break;
}
}
// mark for removal
if(!in_cat) {
downgrades.push_back(base_mutation);
}
}
}
}
// Preliminary round to either upgrade or remove existing mutations
if(one_in(2)) {
if (upgrades.size() > 0) {
// (upgrade count) chances to pick an upgrade, 4 chances to pick something else.
int roll = rng(0, upgrades.size() + 4);
if (roll < upgrades.size()) {
// We got a valid upgrade index, so use it and return.
mutate_towards(upgrades[roll]);
return;
}
}
} else {
// Remove existing mutations that don't fit into our category
if (downgrades.size() > 0 && cat != "") {
int roll = rng(0, downgrades.size() + 4);
if (roll < downgrades.size()) {
remove_mutation(downgrades[roll]);
return;
}
}
}
std::vector<std::string> valid; // Valid mutations
bool first_pass = true;
do {
// If we tried once with a non-NULL category, and couldn't find anything valid
// there, try again with MUTCAT_NULL
if (!first_pass) {
cat = "";
}
if (cat == "") {
// Pull the full list
for (std::map<std::string, trait>::iterator iter = traits.begin(); iter != traits.end(); ++iter) {
if (mutation_data[iter->first].valid) {
valid.push_back( iter->first );
}
}
} else {
// Pull the category's list
valid = mutations_category[cat];
}
// Remove anything we already have, that we have a child of, or that
// goes against our intention of a good/bad mutation
for (int i = 0; i < valid.size(); i++) {
if (!mutation_ok(valid[i], force_good, force_bad)) {
valid.erase(valid.begin() + i);
i--;
}
}
if (valid.empty()) {
// So we won't repeat endlessly
first_pass = false;
}
} while (valid.empty() && cat != "");
if (valid.empty()) {
// Couldn't find anything at all!
return;
}
std::string selection = valid[ rng(0, valid.size() - 1) ]; // Pick one!
mutate_towards(selection);
}
void player::mutate()
{
bool force_bad = one_in(3);
bool force_good = false;
if (has_trait( trait_ROBUST ) && force_bad) {
// Robust Genetics gives you a 33% chance for a good mutation,
// instead of the 33% chance of a bad one.
force_bad = false;
force_good = true;
}
// Determine the highest mutation category
std::string cat = get_highest_category();
// See if we should upgrade/extend an existing mutation...
std::vector<trait_id> upgrades;
// ... or remove one that is not in our highest category
std::vector<trait_id> downgrades;
// For each mutation...
for( auto &traits_iter : mutation_branch::get_all() ) {
const auto &base_mutation = traits_iter.first;
const auto &base_mdata = traits_iter.second;
bool thresh_save = base_mdata.threshold;
bool prof_save = base_mdata.profession;
bool purify_save = base_mdata.purifiable;
// ...that we have...
if (has_trait(base_mutation)) {
// ...consider the mutations that replace it.
for( auto &mutation : base_mdata.replacements ) {
bool valid_ok = mutation->valid;
if ( (mutation_ok(mutation, force_good, force_bad)) &&
(valid_ok) ) {
upgrades.push_back(mutation);
}
}
// ...consider the mutations that add to it.
for( auto &mutation : base_mdata.additions ) {
bool valid_ok = mutation->valid;
if ( (mutation_ok(mutation, force_good, force_bad)) &&
(valid_ok) ) {
upgrades.push_back(mutation);
}
}
// ...consider whether its in our highest category
if( has_trait(base_mutation) && !has_base_trait(base_mutation) ) {
// Starting traits don't count toward categories
std::vector<trait_id> group = mutations_category[cat];
bool in_cat = false;
for( auto &elem : group ) {
if( elem == base_mutation ) {
in_cat = true;
break;
}
}
// mark for removal
// no removing Thresholds/Professions this way!
if(!in_cat && !thresh_save && !prof_save) {
// non-purifiable stuff should be pretty tenacious
// category-enforcement only targets it 25% of the time
// (purify_save defaults true, = false for non-purifiable)
if( purify_save || ( one_in( 4 ) && !purify_save ) ) {
downgrades.push_back(base_mutation);
}
}
}
}
}
// Preliminary round to either upgrade or remove existing mutations
if(one_in(2)) {
if (!upgrades.empty()) {
// (upgrade count) chances to pick an upgrade, 4 chances to pick something else.
size_t roll = rng(0, upgrades.size() + 4);
if (roll < upgrades.size()) {
// We got a valid upgrade index, so use it and return.
mutate_towards(upgrades[roll]);
return;
}
}
} else {
// Remove existing mutations that don't fit into our category
if( !downgrades.empty() && !cat.empty() ) {
size_t roll = rng(0, downgrades.size() + 4);
if (roll < downgrades.size()) {
remove_mutation(downgrades[roll]);
return;
}
}
}
std::vector<trait_id> valid; // Valid mutations
bool first_pass = true;
do {
// If we tried once with a non-NULL category, and couldn't find anything valid
// there, try again with MUTCAT_NULL
if (!first_pass) {
cat.clear();
}
if( cat.empty() ) {
// Pull the full list
for( auto &traits_iter : mutation_branch::get_all() ) {
if( traits_iter.second.valid ) {
valid.push_back( traits_iter.first );
}
}
} else {
// Pull the category's list
valid = mutations_category[cat];
}
// Remove anything we already have, that we have a child of, or that
// goes against our intention of a good/bad mutation
for (size_t i = 0; i < valid.size(); i++) {
if ( (!mutation_ok(valid[i], force_good, force_bad)) ||
(!valid[i]->valid) ) {
valid.erase(valid.begin() + i);
i--;
}
}
if (valid.empty()) {
// So we won't repeat endlessly
first_pass = false;
}
} while ( valid.empty() && !cat.empty() );
if (valid.empty()) {
// Couldn't find anything at all!
return;
}
if (mutate_towards(random_entry(valid))) {
return;
} else {
// if mutation failed (errors, post-threshold pick), try again once.
mutate_towards(random_entry(valid));
}
}