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contexts.hpp
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contexts.hpp
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/*
Copyright (C) 2009 - 2018 by Yurii Chernyi <terraninfo@terraninfo.net>
Part of the Battle for Wesnoth Project https://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.
*/
/**
* @file
* Helper functions for the object which operates in the context of AI for specific side
* this is part of AI interface
*/
#pragma once
#include "ai/game_info.hpp" // for move_map, typesafe_aspect_ptr, etc
#include "config.hpp" // for config
#include "game_errors.hpp"
#include "generic_event.hpp" // for observer
#include "units/ptr.hpp" // for unit_ptr
#include "map/location.hpp" // for map_location
#include <map> // for map, map<>::value_compare
#include <set> // for set
#include <string> // for string
#include <utility> // for pair
#include <vector> // for vector
class gamemap; // lines 41-41
class team;
class terrain_filter; // lines 43-43
class unit_map;
class unit_type; // lines 46-46
namespace wfl { class variant; }
namespace ai { class ai_context; } // lines 51-51
namespace ai { class unit_advancements_aspect; }
namespace ai { template <typename T> class typesafe_aspect; }
namespace boost { template <class T> class shared_ptr; }
namespace pathfind { struct paths; }
struct battle_context_unit_stats; // lines 39-39
namespace ai {
typedef ai_context* ai_context_ptr;
// recursion counter
class recursion_counter {
public:
recursion_counter(int counter)
: counter_(++counter)
{
if (counter > MAX_COUNTER_VALUE ) {
throw game::game_error("maximum recursion depth reached!");
}
}
/**
* Get the current value of the recursion counter
*/
int get_count() const
{
return counter_;
}
//max recursion depth
static const int MAX_COUNTER_VALUE = 100;
/**
* Check if more recursion is allowed
*/
bool is_ok() const
{
return counter_ < MAX_COUNTER_VALUE;
}
private:
// recursion counter value
int counter_;
};
//defensive position
struct defensive_position {
defensive_position() :
loc(),
chance_to_hit(0),
vulnerability(0.0),
support(0.0)
{}
map_location loc;
int chance_to_hit;
double vulnerability, support;
};
// keeps cache
class keeps_cache : public events::observer
{
public:
keeps_cache();
~keeps_cache();
void handle_generic_event(const std::string& event_name);
void clear();
const std::set<map_location>& get();
void init(const gamemap &map);
private:
const gamemap *map_;
std::set<map_location> keeps_;
};
// side context
class side_context;
class side_context{
public:
/**
* Get the side number
*/
virtual side_number get_side() const = 0;
/**
* Set the side number
*/
virtual void set_side(side_number side) = 0;
/**
* empty destructor
*/
virtual ~side_context(){}
/**
* empty constructor
*/
side_context() {}
/**
* unwrap
*/
virtual side_context& get_side_context() = 0;
/**
* serialize this context to config
*/
virtual config to_side_context_config() const = 0;
/**
* Get the value of the recursion counter
*/
virtual int get_recursion_count() const = 0;
};
class readonly_context;
class readonly_context : public virtual side_context {
public:
readonly_context(){}
virtual ~readonly_context(){}
virtual readonly_context& get_readonly_context() = 0;
virtual void on_readonly_context_create() = 0;
virtual const team& current_team() const = 0;
virtual void diagnostic(const std::string& msg) = 0;
virtual void log_message(const std::string& msg) = 0;
virtual attack_result_ptr check_attack_action(const map_location& attacker_loc, const map_location& defender_loc, int attacker_weapon) = 0;
virtual move_result_ptr check_move_action(const map_location& from, const map_location& to, bool remove_movement=true, bool unreach_is_ok=false) = 0;
virtual recall_result_ptr check_recall_action(const std::string& id, const map_location &where = map_location::null_location(), const map_location &from = map_location::null_location()) = 0;
virtual recruit_result_ptr check_recruit_action(const std::string& unit_name, const map_location &where = map_location::null_location(), const map_location &from = map_location::null_location()) = 0;
virtual stopunit_result_ptr check_stopunit_action(const map_location& unit_location, bool remove_movement = true, bool remove_attacks = false) = 0;
virtual synced_command_result_ptr check_synced_command_action(const std::string& lua_code, const map_location& location = map_location::null_location()) = 0;
virtual void calculate_possible_moves(std::map<map_location,pathfind::paths>& possible_moves,
move_map& srcdst, move_map& dstsrc, bool enemy,
bool assume_full_movement=false,
const terrain_filter* remove_destinations=nullptr) const = 0;
virtual void calculate_moves(const unit_map& units,
std::map<map_location,pathfind::paths>& possible_moves, move_map& srcdst,
move_map& dstsrc, bool enemy, bool assume_full_movement=false,
const terrain_filter* remove_destinations=nullptr,
bool see_all=false) const = 0;
virtual const game_info& get_info() const = 0;
//@note: following part is in alphabetic order
virtual const defensive_position& best_defensive_position(const map_location& unit,
const move_map& dstsrc, const move_map& srcdst, const move_map& enemy_dstsrc) const = 0;
virtual std::map<map_location,defensive_position>& defensive_position_cache() const = 0;
virtual const unit_advancements_aspect& get_advancements() const = 0;
virtual double get_aggression() const = 0;
virtual int get_attack_depth() const = 0;
virtual const aspect_map& get_aspects() const = 0;
virtual aspect_map& get_aspects() = 0;
virtual void add_facet(const std::string &id, const config &cfg) const = 0;
virtual void add_aspects(std::vector< aspect_ptr > &aspects ) = 0;
virtual const attacks_vector& get_attacks() const = 0;
virtual const wfl::variant& get_attacks_as_variant() const = 0;
virtual const terrain_filter& get_avoid() const = 0;
virtual double get_caution() const = 0;
virtual const move_map& get_dstsrc() const = 0;
virtual const move_map& get_enemy_dstsrc() const = 0;
virtual const moves_map& get_enemy_possible_moves() const = 0;
virtual const move_map& get_enemy_srcdst() const = 0;
/**
* get engine by cfg, creating it if it is not created yet but known
*/
virtual engine_ptr get_engine_by_cfg(const config& cfg) = 0;
virtual const std::vector<engine_ptr>& get_engines() const = 0;
virtual std::vector<engine_ptr>& get_engines() = 0;
virtual std::string get_grouping() const = 0;
virtual const std::vector<goal_ptr>& get_goals() const = 0;
virtual std::vector<goal_ptr>& get_goals() = 0;
virtual double get_leader_aggression() const = 0;
virtual config get_leader_goal() const = 0;
virtual bool get_leader_ignores_keep() const = 0;
virtual double get_leader_value() const = 0;
virtual bool get_passive_leader() const = 0;
virtual bool get_passive_leader_shares_keep() const = 0;
virtual const moves_map& get_possible_moves() const = 0;
virtual double get_recruitment_diversity() const = 0;
virtual const config get_recruitment_instructions() const = 0;
virtual const std::vector<std::string> get_recruitment_more() const = 0;
virtual const std::vector<std::string> get_recruitment_pattern() const = 0;
virtual int get_recruitment_randomness() const = 0;
virtual const config get_recruitment_save_gold() const = 0;
virtual double get_scout_village_targeting() const = 0;
virtual bool get_simple_targeting() const = 0;
virtual const move_map& get_srcdst() const = 0;
virtual bool get_support_villages() const = 0;
virtual double get_village_value() const = 0;
virtual int get_villages_per_scout() const = 0;
virtual bool is_active(const std::string &time_of_day, const std::string &turns) const = 0;
virtual bool is_dst_src_valid_lua() const = 0;
virtual bool is_dst_src_enemy_valid_lua() const = 0;
virtual bool is_src_dst_valid_lua() const = 0;
virtual bool is_src_dst_enemy_valid_lua() const = 0;
virtual void invalidate_defensive_position_cache() const = 0;
virtual void invalidate_move_maps() const = 0;
virtual void invalidate_keeps_cache() const= 0;
virtual const std::set<map_location>& keeps() const= 0;
virtual bool leader_can_reach_keep() const = 0;
virtual const map_location& nearest_keep(const map_location& loc) const = 0;
/**
* Function which finds how much 'power' a side can attack a certain location with.
* This is basically the maximum hp of damage that can be inflicted upon a unit on loc
* by full-health units, multiplied by the defense these units will have.
* (if 'use_terrain' is false, then it will be multiplied by 0.5)
*
* Example: 'loc' can be reached by two units, one of whom has a 10-3 attack
* and has 48/48 hp, and can defend at 40% on the adjacent grassland.
* The other has a 8-2 attack, and has 30/40 hp, and can defend at 60% on the adjacent mountain.
* The rating will be 10*3*1.0*0.4 + 8*2*0.75*0.6 = 19.2
*/
virtual double power_projection(const map_location& loc, const move_map& dstsrc) const = 0;
virtual void raise_user_interact() const = 0;
virtual void recalculate_move_maps() const = 0;
virtual void recalculate_move_maps_enemy() const = 0;
virtual void set_src_dst_valid_lua() = 0;
virtual void set_src_dst_enemy_valid_lua() = 0;
virtual void set_dst_src_valid_lua() = 0;
virtual void set_dst_src_enemy_valid_lua() = 0;
/** get most suitable keep for leader - nearest free that can be reached in 1 turn, if none - return nearest occupied that can be reached in 1 turn, if none - return nearest keep, if none - return null_location */
virtual const map_location& suitable_keep( const map_location& leader_location, const pathfind::paths& leader_paths ) const = 0;
/**
* serialize to config
*/
virtual config to_readonly_context_config() const = 0;
typedef std::map<std::pair<map_location,const unit_type *>,
std::pair<battle_context_unit_stats,battle_context_unit_stats>>
unit_stats_cache_t;
virtual unit_stats_cache_t & unit_stats_cache() const = 0;
};
class readwrite_context;
class readwrite_context : public virtual readonly_context {
public:
readwrite_context(){}
virtual ~readwrite_context(){}
virtual readwrite_context& get_readwrite_context() = 0;
virtual attack_result_ptr execute_attack_action(const map_location& attacker_loc, const map_location& defender_loc, int attacker_weapon) = 0;
virtual move_result_ptr execute_move_action(const map_location& from, const map_location& to, bool remove_movement=true, bool unreach_is_ok=false) = 0;
virtual recall_result_ptr execute_recall_action(const std::string& id, const map_location &where = map_location::null_location(), const map_location &from = map_location::null_location()) = 0;
virtual recruit_result_ptr execute_recruit_action(const std::string& unit_name, const map_location &where = map_location::null_location(), const map_location &from = map_location::null_location()) = 0;
virtual stopunit_result_ptr execute_stopunit_action(const map_location& unit_location, bool remove_movement = true, bool remove_attacks = false) = 0;
virtual synced_command_result_ptr execute_synced_command_action(const std::string& lua_code, const map_location& location = map_location::null_location()) = 0;
virtual team& current_team_w() = 0;
virtual void raise_gamestate_changed() const = 0;
virtual game_info& get_info_w() = 0;
/**
* serialize this context to config
*/
virtual config to_readwrite_context_config() const = 0;
};
//proxies
class side_context_proxy : public virtual side_context {
public:
side_context_proxy()
: target_(nullptr)
{
}
virtual ~side_context_proxy(){}
void init_side_context_proxy(side_context &target)
{
target_= &target.get_side_context();
}
virtual side_number get_side() const override
{
return target_->get_side();
}
virtual void set_side(side_number side) override
{
return target_->set_side(side);
}
virtual side_context& get_side_context() override
{
return target_->get_side_context();
}
virtual int get_recursion_count() const override
{
return target_->get_recursion_count();
}
virtual config to_side_context_config() const override
{
return target_->to_side_context_config();
}
private:
side_context *target_;
};
class readonly_context_proxy : public virtual readonly_context, public virtual side_context_proxy {
public:
readonly_context_proxy()
: target_(nullptr)
{
}
virtual ~readonly_context_proxy() {}
void init_readonly_context_proxy(readonly_context &target)
{
init_side_context_proxy(target);
target_ = &target.get_readonly_context();
}
virtual readonly_context& get_readonly_context() override
{
return target_->get_readonly_context();
}
virtual void on_readonly_context_create() override
{
return target_->on_readonly_context_create();
}
virtual const team& current_team() const override
{
return target_->current_team();
}
virtual void diagnostic(const std::string& msg) override
{
target_->diagnostic(msg);
}
virtual void log_message(const std::string& msg) override
{
target_->log_message(msg);
}
virtual attack_result_ptr check_attack_action(const map_location &attacker_loc, const map_location &defender_loc, int attacker_weapon) override
{
return target_->check_attack_action(attacker_loc, defender_loc, attacker_weapon);
}
virtual move_result_ptr check_move_action(const map_location &from, const map_location &to, bool remove_movement=true, bool unreach_is_ok=false) override
{
return target_->check_move_action(from, to, remove_movement, unreach_is_ok);
}
virtual recall_result_ptr check_recall_action(const std::string &id, const map_location &where = map_location::null_location(),
const map_location &from = map_location::null_location()) override
{
return target_->check_recall_action(id, where, from);
}
virtual recruit_result_ptr check_recruit_action(const std::string &unit_name, const map_location &where = map_location::null_location(),
const map_location &from = map_location::null_location()) override
{
return target_->check_recruit_action(unit_name, where, from);
}
virtual stopunit_result_ptr check_stopunit_action(const map_location &unit_location, bool remove_movement = true, bool remove_attacks = false) override
{
return target_->check_stopunit_action(unit_location, remove_movement, remove_attacks);
}
virtual synced_command_result_ptr check_synced_command_action(const std::string& lua_code, const map_location& location = map_location::null_location()) override
{
return target_->check_synced_command_action(lua_code, location);
}
virtual void calculate_possible_moves(std::map<map_location,pathfind::paths>& possible_moves,
move_map& srcdst, move_map& dstsrc, bool enemy,
bool assume_full_movement=false,
const terrain_filter* remove_destinations=nullptr) const override
{
target_->calculate_possible_moves(possible_moves, srcdst, dstsrc, enemy, assume_full_movement, remove_destinations);
}
virtual void calculate_moves(const unit_map& units,
std::map<map_location,pathfind::paths>& possible_moves, move_map& srcdst,
move_map& dstsrc, bool enemy, bool assume_full_movement=false,
const terrain_filter* remove_destinations=nullptr,
bool see_all=false) const override
{
target_->calculate_moves(units, possible_moves, srcdst, dstsrc, enemy, assume_full_movement, remove_destinations, see_all);
}
virtual const game_info& get_info() const override
{
return target_->get_info();
}
virtual void raise_user_interact() const override
{
target_->raise_user_interact();
}
virtual int get_recursion_count() const override
{
return target_->get_recursion_count();
}
//@note: following part is in alphabetic order
const defensive_position& best_defensive_position(const map_location& unit,
const move_map& dstsrc, const move_map& srcdst, const move_map& enemy_dstsrc) const override
{
return target_->best_defensive_position(unit,dstsrc,srcdst,enemy_dstsrc);
}
virtual std::map<map_location,defensive_position>& defensive_position_cache() const override
{
return target_->defensive_position_cache();
}
virtual const unit_advancements_aspect& get_advancements() const override
{
return target_->get_advancements();
}
virtual double get_aggression() const override
{
return target_->get_aggression();
}
virtual int get_attack_depth() const override
{
return target_->get_attack_depth();
}
virtual const aspect_map& get_aspects() const override
{
return target_->get_aspects();
}
virtual aspect_map& get_aspects() override
{
return target_->get_aspects();
}
virtual void add_aspects(std::vector< aspect_ptr > &aspects ) override
{
return target_->add_aspects(aspects);
}
virtual void add_facet(const std::string &id, const config &cfg) const override
{
target_->add_facet(id,cfg);
}
virtual const attacks_vector& get_attacks() const override
{
return target_->get_attacks();
}
virtual const wfl::variant& get_attacks_as_variant() const override
{
return target_->get_attacks_as_variant();
}
virtual const terrain_filter& get_avoid() const override
{
return target_->get_avoid();
}
virtual double get_caution() const override
{
return target_->get_caution();
}
virtual const move_map& get_dstsrc() const override
{
return target_->get_dstsrc();
}
virtual const move_map& get_enemy_dstsrc() const override
{
return target_->get_enemy_dstsrc();
}
virtual const moves_map& get_enemy_possible_moves() const override
{
return target_->get_enemy_possible_moves();
}
virtual const move_map& get_enemy_srcdst() const override
{
return target_->get_enemy_srcdst();
}
virtual engine_ptr get_engine_by_cfg(const config &cfg) override
{
return target_->get_engine_by_cfg(cfg);
}
virtual const std::vector<engine_ptr>& get_engines() const override
{
return target_->get_engines();
}
virtual std::vector<engine_ptr>& get_engines() override
{
return target_->get_engines();
}
virtual std::string get_grouping() const override
{
return target_->get_grouping();
}
virtual const std::vector<goal_ptr>& get_goals() const override
{
return target_->get_goals();
}
virtual std::vector<goal_ptr>& get_goals() override
{
return target_->get_goals();
}
virtual double get_leader_aggression() const override
{
return target_->get_leader_aggression();
}
virtual config get_leader_goal() const override
{
return target_->get_leader_goal();
}
virtual bool get_leader_ignores_keep() const override
{
return target_->get_leader_ignores_keep();
}
virtual double get_leader_value() const override
{
return target_->get_leader_value();
}
virtual bool get_passive_leader() const override
{
return target_->get_passive_leader();
}
virtual bool get_passive_leader_shares_keep() const override
{
return target_->get_passive_leader_shares_keep();
}
virtual const moves_map& get_possible_moves() const override
{
return target_->get_possible_moves();
}
virtual double power_projection(const map_location& loc, const move_map& dstsrc) const override
{
return target_->power_projection(loc,dstsrc);
}
virtual double get_recruitment_diversity() const override
{
return target_->get_recruitment_diversity();
}
virtual const config get_recruitment_instructions() const override
{
return target_->get_recruitment_instructions();
}
virtual const std::vector<std::string> get_recruitment_more() const override
{
return target_->get_recruitment_more();
}
virtual const std::vector<std::string> get_recruitment_pattern() const override
{
return target_->get_recruitment_pattern();
}
virtual int get_recruitment_randomness() const override
{
return target_->get_recruitment_randomness();
}
virtual const config get_recruitment_save_gold() const override
{
return target_->get_recruitment_save_gold();
}
virtual const move_map& get_srcdst() const override
{
return target_->get_srcdst();
}
virtual double get_scout_village_targeting() const override
{
return target_->get_scout_village_targeting();
}
virtual bool get_simple_targeting() const override
{
return target_->get_simple_targeting();
}
virtual bool get_support_villages() const override
{
return target_->get_support_villages();
}
virtual double get_village_value() const override
{
return target_->get_village_value();
}
virtual int get_villages_per_scout() const override
{
return target_->get_villages_per_scout();
}
virtual bool is_active(const std::string &time_of_day, const std::string &turns) const override
{
return target_->is_active(time_of_day, turns);
}
virtual bool is_dst_src_valid_lua() const override
{
return target_->is_dst_src_valid_lua();
}
virtual bool is_dst_src_enemy_valid_lua() const override
{
return target_->is_dst_src_enemy_valid_lua();
}
virtual bool is_src_dst_valid_lua() const override
{
return target_->is_src_dst_valid_lua();
}
virtual bool is_src_dst_enemy_valid_lua() const override
{
return target_->is_src_dst_enemy_valid_lua();
}
virtual void invalidate_defensive_position_cache() const override
{
return target_->invalidate_defensive_position_cache();
}
virtual void invalidate_move_maps() const override
{
target_->invalidate_move_maps();
}
virtual void invalidate_keeps_cache() const override
{
return target_->invalidate_keeps_cache();
}
virtual const std::set<map_location>& keeps() const override
{
return target_->keeps();
}
virtual bool leader_can_reach_keep() const override
{
return target_->leader_can_reach_keep();
}
virtual const map_location& nearest_keep( const map_location& loc ) const override
{
return target_->nearest_keep(loc);
}
virtual void recalculate_move_maps() const override
{
target_->recalculate_move_maps();
}
virtual void recalculate_move_maps_enemy() const override
{
target_->recalculate_move_maps_enemy();
}
virtual void set_dst_src_valid_lua() override
{
target_->set_dst_src_valid_lua();
}
virtual void set_dst_src_enemy_valid_lua() override
{
target_->set_dst_src_enemy_valid_lua();
}
virtual void set_src_dst_valid_lua() override
{
target_->set_src_dst_valid_lua();
}
virtual void set_src_dst_enemy_valid_lua() override
{
target_->set_src_dst_enemy_valid_lua();
}
virtual const map_location& suitable_keep( const map_location& leader_location, const pathfind::paths& leader_paths ) const override
{
return target_->suitable_keep(leader_location, leader_paths);
}
virtual config to_readonly_context_config() const override
{
return target_->to_readonly_context_config();
}
virtual unit_stats_cache_t & unit_stats_cache() const override
{
return target_->unit_stats_cache();
}
private:
readonly_context *target_;
};
class readwrite_context_proxy : public virtual readwrite_context, public virtual readonly_context_proxy {
public:
readwrite_context_proxy()
: target_(nullptr)
{
}
void init_readwrite_context_proxy(readwrite_context &target)
{
init_readonly_context_proxy(target);
target_ = &target.get_readwrite_context();
}