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manager.cpp
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manager.cpp
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/*
Copyright (C) 2009 - 2013 by Yurii Chernyi <terraninfo@terraninfo.net>
Part of the Battle for Wesnoth Project http://www.wesnoth.org/
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY.
See the COPYING file for more details.
*/
/**
* Managing the AI lifecycle and interface for the rest of Wesnoth
* @file
*/
#include "composite/ai.hpp"
#include "configuration.hpp"
#include "contexts.hpp"
#include "default/ai.hpp"
#include "manager.hpp"
#include "formula/ai.hpp"
#include "registry.hpp"
#include "../game_events.hpp"
#include "../log.hpp"
#include "../serialization/string_utils.hpp"
#include "composite/component.hpp"
#include <boost/foreach.hpp>
#include <map>
#include <stack>
#include <vector>
#include "composite/engine.hpp"
namespace ai {
const std::string manager::AI_TYPE_COMPOSITE_AI = "composite_ai";
const std::string manager::AI_TYPE_SAMPLE_AI = "sample_ai";
const std::string manager::AI_TYPE_IDLE_AI = "idle_ai";
const std::string manager::AI_TYPE_FORMULA_AI = "formula_ai";
const std::string manager::AI_TYPE_DEFAULT = "default";
static lg::log_domain log_ai_manager("ai/manager");
#define DBG_AI_MANAGER LOG_STREAM(debug, log_ai_manager)
#define LOG_AI_MANAGER LOG_STREAM(info, log_ai_manager)
#define ERR_AI_MANAGER LOG_STREAM(err, log_ai_manager)
static lg::log_domain log_ai_mod("ai/mod");
#define DBG_AI_MOD LOG_STREAM(debug, log_ai_mod)
#define LOG_AI_MOD LOG_STREAM(info, log_ai_mod)
#define WRN_AI_MOD LOG_STREAM(warn, log_ai_mod)
#define ERR_AI_MOD LOG_STREAM(err, log_ai_mod)
holder::holder( side_number side, const config &cfg )
: ai_(), side_context_(NULL), readonly_context_(NULL), readwrite_context_(NULL), default_ai_context_(NULL), side_(side), cfg_(cfg)
{
DBG_AI_MANAGER << describe_ai() << "Preparing new AI holder" << std::endl;
}
void holder::init( side_number side )
{
if (side_context_ == NULL) {
side_context_ = new side_context_impl(side,cfg_);
} else {
side_context_->set_side(side);
}
if (readonly_context_ == NULL){
readonly_context_ = new readonly_context_impl(*side_context_,cfg_);
readonly_context_->on_readonly_context_create();
}
if (readwrite_context_ == NULL){
readwrite_context_ = new readwrite_context_impl(*readonly_context_,cfg_);
}
if (default_ai_context_ == NULL){
default_ai_context_ = new default_ai_context_impl(*readwrite_context_,cfg_);
}
if (!this->ai_){
ai_ = boost::shared_ptr<ai_composite>(new ai_composite(*default_ai_context_,cfg_));
}
if (this->ai_) {
ai_->on_create();
BOOST_FOREACH(config &mod_ai, cfg_.child_range("modify_ai")) {
if (!mod_ai.has_attribute("side")) {
mod_ai["side"] = side;
}
modify_ai(mod_ai);
}
cfg_.clear_children("modify_ai");
std::vector<engine_ptr> engines = ai_->get_engines();
for (std::vector<engine_ptr>::iterator it = engines.begin(); it != engines.end(); ++it)
{
(*it)->set_ai_context(&(ai_->get_ai_context()));
}
} else {
ERR_AI_MANAGER << describe_ai()<<"AI lazy initialization error!" << std::endl;
}
}
holder::~holder()
{
if (this->ai_) {
LOG_AI_MANAGER << describe_ai() << "Managed AI will be deleted" << std::endl;
}
delete this->default_ai_context_;
delete this->readwrite_context_;
delete this->readonly_context_;
delete this->side_context_;
}
interface& holder::get_ai_ref()
{
if (!this->ai_) {
this->init(this->side_);
}
assert(this->ai_);
return *this->ai_;
}
void holder::modify_ai_config_old( const config::const_child_itors &ai_parameters)
{
// only handle aspects
// transform ai_parameters to new-style config
config cfg;
configuration::upgrade_aspect_configs_from_1_07_02_to_1_07_03(this->side_,ai_parameters,cfg);
//at this point we have a single config which contains [aspect][facet] tags
DBG_AI_MANAGER << "after transforming [modify_side][ai] into new syntax, config contains:"<< std::endl << cfg << std::endl;
if (this->readonly_context_ == NULL) {
// if not initialized, append that config to the bottom of base cfg
// then, merge aspects with the same id
cfg_.merge_with(cfg);
cfg_.merge_children_by_attribute("aspect","id");
} else {
// else run 'add_facet' command on each [aspect][facet]
BOOST_FOREACH(const config &cfg_a, cfg.child_range("aspect")) {
BOOST_FOREACH(const config &cfg_f, cfg_a.child_range("facet")) {
readonly_context_->add_facet(cfg_a["id"],cfg_f);
}
}
}
}
void holder::modify_ai(const config &cfg)
{
if (!this->ai_) {
// if not initialized, initialize now.
get_ai_ref();
}
const std::string &act = cfg["action"];
LOG_AI_MOD << "side "<< side_ << " [modify_ai] "<<act<<" \""<<cfg["path"]<<"\""<<std::endl;
DBG_AI_MOD << std::endl << cfg << std::endl;
DBG_AI_MOD << "side "<< side_ << " before [modify_ai]"<<std::endl << to_config() << std::endl;
bool res = false;
if (act == "add") {
res = component_manager::add_component(&*this->ai_,cfg["path"],cfg);
} else if (act == "change") {
res = component_manager::change_component(&*this->ai_,cfg["path"],cfg);
} else if (act == "delete") {
res = component_manager::delete_component(&*this->ai_,cfg["path"]);
} else if (act == "try_delete") {
res = component_manager::delete_component(&*this->ai_,cfg["path"]);
if (!res) {
LOG_AI_MOD << "[modify_ai] "<<act<<" failed, ignoring because it's a try_delete"<< std::endl;
res = true;
}
} else {
ERR_AI_MOD << "modify_ai tag has invalid 'action' attribute " << act << std::endl;
}
DBG_AI_MOD << "side "<< side_ << " after [modify_ai]"<<act<<std::endl << to_config() << std::endl;
if (!res) {
LOG_AI_MOD << "[modify_ai] "<<act<<" failed"<< std::endl;
} else {
LOG_AI_MOD << "[modify_ai] "<<act<<" success"<< std::endl;
}
}
config holder::to_config() const
{
if (!this->ai_) {
return cfg_;
} else {
config cfg = ai_->to_config();
cfg["version"] = "10703";
if (this->side_context_!=NULL) {
cfg.merge_with(this->side_context_->to_side_context_config());
}
if (this->readonly_context_!=NULL) {
cfg.merge_with(this->readonly_context_->to_readonly_context_config());
}
if (this->readwrite_context_!=NULL) {
cfg.merge_with(this->readwrite_context_->to_readwrite_context_config());
}
if (this->default_ai_context_!=NULL) {
cfg.merge_with(this->default_ai_context_->to_default_ai_context_config());
}
return cfg;
}
}
const std::string holder::describe_ai()
{
std::string sidestr = lexical_cast<std::string>(this->side_);
if (this->ai_!=NULL) {
return this->ai_->describe_self()+std::string(" for side ")+sidestr+std::string(" : ");
} else {
return std::string("not initialized ai with id=[")+cfg_["id"]+std::string("] for side ")+sidestr+std::string(" : ");
}
}
const std::string holder::get_ai_overview()
{
if (!this->ai_) {
get_ai_ref();
}
std::stringstream s;
s << "aggression: " << this->ai_->get_aggression() << std::endl;
s << "attack_depth: " << this->ai_->get_attack_depth() << std::endl;
s << "caution: " << this->ai_->get_caution() << std::endl;
s << "grouping: " << this->ai_->get_grouping() << std::endl;
s << "leader_aggression: " << this->ai_->get_leader_aggression() << std::endl;
s << "leader_ignores_keep: " << this->ai_->get_leader_ignores_keep() << std::endl;
s << "leader_value: " << this->ai_->get_leader_value() << std::endl;
s << "number_of_possible_recruits_to_force_recruit: " << this->ai_->get_number_of_possible_recruits_to_force_recruit() << std::endl;
s << "passive_leader: " << this->ai_->get_passive_leader() << std::endl;
s << "passive_leader_shares_keep: " << this->ai_->get_passive_leader_shares_keep() << std::endl;
s << "recruitment_ignore_bad_combat: " << this->ai_->get_recruitment_ignore_bad_combat() << std::endl;
s << "recruitment_ignore_bad_movement: " << this->ai_->get_recruitment_ignore_bad_movement() << std::endl;
// s << "recruitment_pattern: ";
// for(std::vector<std::string>::const_iterator i = this->ai_->get_recruitment_pattern().begin(); i != this->ai_->get_recruitment_pattern().end(); ++i) {
// if(i != this->ai_->get_recruitment_pattern().begin())
// s << ",";
//
// s << *i;
// }
// s << std::endl;
s << "scout_village_targeting: " << this->ai_->get_scout_village_targeting() << std::endl;
s << "simple_targeting: " << this->ai_->get_simple_targeting() << std::endl;
s << "support_villages: " << this->ai_->get_support_villages() << std::endl;
s << "village_value: " << this->ai_->get_village_value() << std::endl;
s << "villages_per_scout: " << this->ai_->get_villages_per_scout() << std::endl;
return s.str();
}
const std::string holder::get_ai_structure()
{
if (!this->ai_) {
get_ai_ref();
}
return component_manager::print_component_tree(&*this->ai_,"");
}
const std::string holder::get_ai_identifier() const
{
return cfg_["id"];
}
component* holder::get_component(component *root, const std::string &path) {
if (!game_config::debug) // Debug guard
{
return NULL;
}
if (root == NULL) // Return root component(ai_)
{
if (!this->ai_) {
this->init(this->side_);
}
assert(this->ai_);
return &*this->ai_;
}
return component_manager::get_component(root, path);
}
// =======================================================================
// LIFECYCLE
// =======================================================================
manager::AI_map_of_stacks manager::ai_map_;
game_info *manager::ai_info_;
events::generic_event manager::user_interact_("ai_user_interact");
events::generic_event manager::sync_network_("ai_sync_network");
events::generic_event manager::gamestate_changed_("ai_gamestate_changed");
events::generic_event manager::turn_started_("ai_turn_started");
events::generic_event manager::recruit_list_changed_("ai_recruit_list_changed");
events::generic_event manager::map_changed_("ai_map_changed");
int manager::last_interact_ = 0;
int manager::num_interact_ = 0;
void manager::set_ai_info(const game_info& i)
{
if (ai_info_!=NULL){
clear_ai_info();
}
ai_info_ = new game_info(i);
registry::init();
}
void manager::clear_ai_info(){
delete ai_info_;
ai_info_ = NULL;
}
void manager::add_observer( events::observer* event_observer){
user_interact_.attach_handler(event_observer);
sync_network_.attach_handler(event_observer);
turn_started_.attach_handler(event_observer);
gamestate_changed_.attach_handler(event_observer);
}
void manager::remove_observer(events::observer* event_observer){
user_interact_.detach_handler(event_observer);
sync_network_.detach_handler(event_observer);
turn_started_.detach_handler(event_observer);
gamestate_changed_.detach_handler(event_observer);
}
void manager::add_gamestate_observer( events::observer* event_observer){
gamestate_changed_.attach_handler(event_observer);
turn_started_.attach_handler(event_observer);
map_changed_.attach_handler(event_observer);
}
void manager::remove_gamestate_observer(events::observer* event_observer){
gamestate_changed_.detach_handler(event_observer);
turn_started_.detach_handler(event_observer);
map_changed_.detach_handler(event_observer);
}
void manager::add_map_changed_observer( events::observer* event_observer )
{
map_changed_.attach_handler(event_observer);
}
void manager::add_recruit_list_changed_observer( events::observer* event_observer )
{
recruit_list_changed_.attach_handler(event_observer);
}
void manager::add_turn_started_observer( events::observer* event_observer )
{
turn_started_.attach_handler(event_observer);
}
void manager::remove_recruit_list_changed_observer( events::observer* event_observer )
{
recruit_list_changed_.detach_handler(event_observer);
}
void manager::remove_map_changed_observer( events::observer* event_observer )
{
map_changed_.detach_handler(event_observer);
}
void manager::remove_turn_started_observer( events::observer* event_observer )
{
turn_started_.detach_handler(event_observer);
}
void manager::raise_user_interact() {
const int interact_time = 30;
const int time_since_interact = SDL_GetTicks() - last_interact_;
if(time_since_interact < interact_time) {
return;
}
++num_interact_;
user_interact_.notify_observers();
last_interact_ = SDL_GetTicks();
}
void manager::raise_sync_network() {
sync_network_.notify_observers();
}
void manager::raise_gamestate_changed() {
gamestate_changed_.notify_observers();
}
void manager::raise_turn_started() {
turn_started_.notify_observers();
}
void manager::raise_recruit_list_changed() {
recruit_list_changed_.notify_observers();
}
void manager::raise_map_changed() {
map_changed_.notify_observers();
}
// =======================================================================
// EVALUATION
// =======================================================================
const std::string manager::evaluate_command( side_number side, const std::string& str )
{
//insert new command into history
history_.push_back(command_history_item(history_item_counter_++,str));
//prune history - erase 1/2 of it if it grows too large
if (history_.size()>MAX_HISTORY_SIZE){
history_.erase(history_.begin(),history_.begin()+MAX_HISTORY_SIZE/2);
LOG_AI_MANAGER << "AI MANAGER: pruned history" << std::endl;
}
if (!should_intercept(str)){
interface& ai = get_active_ai_for_side(side);
raise_gamestate_changed();
return ai.evaluate(str);
}
return internal_evaluate_command(side,str);
}
bool manager::should_intercept( const std::string& str )
{
if (str.length()<1) {
return false;
}
if (str.at(0)=='!'){
return true;
}
if (str.at(0)=='?'){
return true;
}
return false;
}
std::deque< command_history_item > manager::history_;
long manager::history_item_counter_ = 1;
//this is stub code to allow testing of basic 'history', 'repeat-last-command', 'add/remove/replace ai' capabilities.
//yes, it doesn't look nice. but it is usable.
//to be refactored at earliest opportunity
///@todo 1.9 extract to separate class which will use fai or lua parser
const std::string manager::internal_evaluate_command( side_number side, const std::string& str ){
const int MAX_HISTORY_VISIBLE = 30;
//repeat last command
if (str=="!") {
//this command should not be recorded in history
if (!history_.empty()){
history_.pop_back();
history_item_counter_--;
}
if (history_.empty()){
return "AI MANAGER: empty history";
}
return evaluate_command(side, history_.back().get_command());//no infinite loop since '!' commands are not present in history
};
//show last command
if (str=="?") {
//this command should not be recorded in history
if (!history_.empty()){
history_.pop_back();
history_item_counter_--;
}
if (history_.empty()){
return "AI MANAGER: History is empty";
}
int n = std::min<int>( MAX_HISTORY_VISIBLE, history_.size() );
std::stringstream strstream;
strstream << "AI MANAGER: History - last "<< n <<" commands:\n";
std::deque< command_history_item >::reverse_iterator j = history_.rbegin();
for (int cmd_id=n; cmd_id>0; --cmd_id){
strstream << j->get_number() << " :" << j->get_command() << '\n';
++j;//this is *reverse* iterator
}
return strstream.str();
};
std::vector< std::string > cmd = utils::parenthetical_split(str, ' ',"'","'");
if (cmd.size()==3){
//!add_ai side file
if (cmd.at(0)=="!add_ai"){
side_number side = lexical_cast<side_number>(cmd.at(1));
std::string file = cmd.at(2);
if (add_ai_for_side_from_file(side,file,false)){
return std::string("AI MANAGER: added [")+manager::get_active_ai_identifier_for_side(side)+std::string("] AI for side ")+lexical_cast<std::string>(side)+std::string(" from file ")+file;
} else {
return std::string("AI MANAGER: failed attempt to add AI for side ")+lexical_cast<std::string>(side)+std::string(" from file ")+file;
}
}
//!replace_ai side file
if (cmd.at(0)=="!replace_ai"){
side_number side = lexical_cast<side_number>(cmd.at(1));
std::string file = cmd.at(2);
if (add_ai_for_side_from_file(side,file,true)){
return std::string("AI MANAGER: added [")+manager::get_active_ai_identifier_for_side(side)+std::string("] AI for side ")+lexical_cast<std::string>(side)+std::string(" from file ")+file;
} else {
return std::string("AI MANAGER: failed attempt to add AI for side ")+lexical_cast<std::string>(side)+std::string(" from file ")+file;
}
}
} else if (cmd.size()==2){
//!remove_ai side
if (cmd.at(0)=="!remove_ai"){
side_number side = lexical_cast<side_number>(cmd.at(1));
remove_ai_for_side(side);
return std::string("AI MANAGER: made an attempt to remove AI for side ")+lexical_cast<std::string>(side);
}
if (cmd.at(0)=="!"){
//this command should not be recorded in history
if (!history_.empty()){
history_.pop_back();
history_item_counter_--;
}
int command = lexical_cast<int>(cmd.at(1));
std::deque< command_history_item >::reverse_iterator j = history_.rbegin();
//yes, the iterator could be precisely positioned (since command numbers go 1,2,3,4,..). will do it later.
while ( (j!=history_.rend()) && (j->get_number()!=command) ){
++j;// this is *reverse* iterator
}
if (j!=history_.rend()){
return evaluate_command(side,j->get_command());//no infinite loop since '!' commands are not present in history
}
return "AI MANAGER: no command with requested number found";
}
} else if (cmd.size()==1){
if (cmd.at(0)=="!help") {
return
"known commands:\n"
"! - repeat last command (? and ! do not count)\n"
"! NUMBER - repeat numbered command\n"
"? - show a history list\n"
"!add_ai TEAM FILE - add a AI to side (0 - command AI, N - AI for side #N) from file\n"
"!remove_ai TEAM - remove AI from side (0 - command AI, N - AI for side #N)\n"
"!replace_ai TEAM FILE - replace AI of side (0 - command AI, N - AI for side #N) from file\n"
"!help - show this help message";
}
}
return "AI MANAGER: nothing to do";
}
// =======================================================================
// ADD, CREATE AIs, OR LIST AI TYPES
// =======================================================================
///@todo 1.9 add error reporting
bool manager::add_ai_for_side_from_file( side_number side, const std::string& file, bool replace )
{
config cfg;
if (!configuration::get_side_config_from_file(file,cfg)){
ERR_AI_MANAGER << " unable to read [SIDE] config for side "<< side << "from file [" << file <<"]"<< std::endl;
return false;
}
return add_ai_for_side_from_config(side,cfg,replace);
}
bool manager::add_ai_for_side_from_config( side_number side, const config& cfg, bool replace ){
config parsed_cfg;
configuration::parse_side_config(side, cfg, parsed_cfg);
if (replace) {
remove_ai_for_side(side);
}
holder new_holder(side,parsed_cfg);
std::stack<holder>& ai_stack_for_specific_side = get_or_create_ai_stack_for_side(side);
ai_stack_for_specific_side.push(new_holder);
return true;
}
///@todo 1.9 add error reporting
bool manager::add_ai_for_side( side_number side, const std::string& ai_algorithm_type, bool replace )
{
if (replace) {
remove_ai_for_side (side);
}
config cfg;
cfg["ai_algorithm"] = ai_algorithm_type;
holder new_holder(side,cfg);
std::stack<holder>& ai_stack_for_specific_side = get_or_create_ai_stack_for_side(side);
ai_stack_for_specific_side.push(new_holder);
return true;
}
ai_ptr manager::create_transient_ai(const std::string &ai_algorithm_type, const config &cfg, ai_context *ai_context )
{
assert(ai_context!=NULL);
//to add your own ai, register it in registry,cpp
ai_factory::factory_map::iterator aii = ai_factory::get_list().find(ai_algorithm_type);
if (aii == ai_factory::get_list().end()){
aii = ai_factory::get_list().find("");
if (aii == ai_factory::get_list().end()){
throw game::game_error("no default ai set!");
}
}
LOG_AI_MANAGER << "Creating new AI of type [" << ai_algorithm_type << "]"<< std::endl;
ai_ptr new_ai = aii->second->get_new_instance(*ai_context,cfg);
return new_ai;
}
// =======================================================================
// REMOVE
// =======================================================================
void manager::remove_ai_for_side( side_number side )
{
std::stack<holder>& ai_stack_for_specific_side = get_or_create_ai_stack_for_side(side);
if (!ai_stack_for_specific_side.empty()){
ai_stack_for_specific_side.pop();
}
}
void manager::remove_all_ais_for_side( side_number side )
{
std::stack<holder>& ai_stack_for_specific_side = get_or_create_ai_stack_for_side(side);
//clear the stack. std::stack doesn't have a '.clear()' method to do it
while (!ai_stack_for_specific_side.empty()){
ai_stack_for_specific_side.pop();
}
}
void manager::clear_ais()
{
ai_map_.clear();
}
// =======================================================================
// Work with active AI parameters
// =======================================================================
void manager::modify_active_ai_config_old_for_side ( side_number side, const config::const_child_itors &ai_parameters )
{
get_active_ai_holder_for_side(side).modify_ai_config_old(ai_parameters);
}
void manager::modify_active_ai_for_side ( side_number side, const config &cfg )
{
if (ai_info_==NULL) {
//replay ?
return;
}
get_active_ai_holder_for_side(side).modify_ai(cfg);
}
std::string manager::get_active_ai_overview_for_side( side_number side)
{
return get_active_ai_holder_for_side(side).get_ai_overview();
}
std::string manager::get_active_ai_structure_for_side( side_number side)
{
return get_active_ai_holder_for_side(side).get_ai_structure();
}
std::string manager::get_active_ai_identifier_for_side( side_number side )
{
return get_active_ai_holder_for_side(side).get_ai_identifier();
}
ai::holder& manager::get_active_ai_holder_for_side_dbg(side_number side)
{
if (!game_config::debug)
{
return *(new ai::holder(side, config()));
}
return get_active_ai_holder_for_side(side);
}
config manager::to_config( side_number side )
{
return get_active_ai_holder_for_side(side).to_config();
}
game_info& manager::get_active_ai_info_for_side( side_number /*side*/ )
{
return *ai_info_;
}
game_info& manager::get_ai_info()
{
return *ai_info_;
}
// =======================================================================
// PROXY
// =======================================================================
void manager::play_turn( side_number side ){
last_interact_ = 0;
num_interact_ = 0;
const int turn_start_time = SDL_GetTicks();
/*hack. @todo 1.9 rework via extended event system*/
get_ai_info().recent_attacks.clear();
interface& ai_obj = get_active_ai_for_side(side);
game_events::fire("ai turn");
raise_turn_started();
ai_obj.new_turn();
ai_obj.play_turn();
const int turn_end_time= SDL_GetTicks();
DBG_AI_MANAGER << "side " << side << ": number of user interactions: "<<num_interact_<<std::endl;
DBG_AI_MANAGER << "side " << side << ": total turn time: "<<turn_end_time - turn_start_time << " ms "<< std::endl;
}
// =======================================================================
// PRIVATE
// =======================================================================
// =======================================================================
// AI STACKS
// =======================================================================
std::stack<holder>& manager::get_or_create_ai_stack_for_side( side_number side )
{
AI_map_of_stacks::iterator iter = ai_map_.find(side);
if (iter!=ai_map_.end()){
return iter->second;
}
return ai_map_.insert(std::make_pair(side, std::stack<holder>())).first->second;
}
// =======================================================================
// AI HOLDERS
// =======================================================================
holder& manager::get_active_ai_holder_for_side( side_number side )
{
std::stack<holder>& ai_stack_for_specific_side = get_or_create_ai_stack_for_side(side);
if (!ai_stack_for_specific_side.empty()){
return ai_stack_for_specific_side.top();
} else {
config cfg = configuration::get_default_ai_parameters();
holder new_holder(side, cfg);
ai_stack_for_specific_side.push(new_holder);
return ai_stack_for_specific_side.top();
}
}
// =======================================================================
// AI POINTERS
// =======================================================================
interface& manager::get_active_ai_for_side( side_number side )
{
return get_active_ai_holder_for_side(side).get_ai_ref();
}
// =======================================================================
// MISC
// =======================================================================
} //end of namespace ai