aidiplomat.cpp File Reference

#include "bitvector.h"
#include "log.h"
#include "shared.h"
#include "timing.h"
#include "actions.h"
#include "city.h"
#include "combat.h"
#include "game.h"
#include "government.h"
#include "map.h"
#include "movement.h"
#include "nation.h"
#include "packets.h"
#include "player.h"
#include "research.h"
#include "unit.h"
#include "unitlist.h"
#include "aiactions.h"
#include "pf_tools.h"
#include "citytools.h"
#include "cityturn.h"
#include "diplomats.h"
#include "maphand.h"
#include "srv_log.h"
#include "unithand.h"
#include "advbuilding.h"
#include "advdata.h"
#include "advgoto.h"
#include "handicaps.h"
#include "aidata.h"
#include "aiguard.h"
#include "aihand.h"
#include "ailog.h"
#include "aiplayer.h"
#include "aitools.h"
#include "aiunit.h"
#include "daiactions.h"
#include "daicity.h"
#include "aidiplomat.h"

Include dependency graph for aidiplomat.cpp:

Go to the source code of this file.

Macros
#define	LOG_DIPLOMAT   LOG_DEBUG
#define	LOG_DIPLOMAT_BUILD   LOG_DEBUG
#define	DIPLO_DEFENSE_WANT   3000

Functions
static bool	is_city_surrounded_by_our_spies (struct player *pplayer, struct city *enemy_city)
	Check if we have a diplomat / spy near a given city. More...
static void	find_city_to_diplomat (struct player *pplayer, struct unit *punit, struct city **ctarget, int *move_dist, struct pf_map *pfm)
	Returns (in ctarget) the closest city to send diplomats against, or nullptr if none available on this continent. More...
static int	count_stealable_techs (struct player *pplayer, struct player *tplayer)
	Number of techs that we don't have and the enemy (tplayer) does. More...
void	dai_choose_diplomat_defensive (struct ai_type *ait, struct player *pplayer, struct city *pcity, struct adv_choice *choice, int def)
	Calculates our need for diplomats as defensive units. More...
void	dai_choose_diplomat_offensive (struct ai_type *ait, struct player *pplayer, struct city *pcity, struct adv_choice *choice)
	Calculates our need for diplomats as offensive units. More...
static void	dai_diplomat_city (struct ai_type *ait, struct unit *punit, struct city *ctarget)
	Check if something is on our receiving end for some nasty diplomat business! Note that punit may die or be moved during this function. More...
static struct city *	dai_diplomat_defend (struct ai_type *ait, struct player *pplayer, struct unit *punit, const struct unit_type *utype, struct pf_map *pfm)
	Go to nearest/most threatened city (can be the current city too). More...
static bool	dai_diplomat_bribe_nearby (struct ai_type *ait, struct player *pplayer, struct unit *punit, struct pf_map *pfm)
	Find units that we can reach, and bribe them. More...
void	dai_manage_diplomat (struct ai_type *ait, struct player *pplayer, struct unit *punit)
	If we are the only diplomat in a threatened city, defend against enemy actions. More...

Macro Definition Documentation

DIPLO_DEFENSE_WANT

#define DIPLO_DEFENSE_WANT   3000

Definition at line 70 of file aidiplomat.cpp.

LOG_DIPLOMAT

#define LOG_DIPLOMAT   LOG_DEBUG

Definition at line 65 of file aidiplomat.cpp.

LOG_DIPLOMAT_BUILD

#define LOG_DIPLOMAT_BUILD   LOG_DEBUG

Definition at line 66 of file aidiplomat.cpp.

Function Documentation

count_stealable_techs()

static int count_stealable_techs ( struct player *  pplayer, struct player *  tplayer  )

static

Number of techs that we don't have and the enemy (tplayer) does.

Definition at line 84 of file aidiplomat.cpp.

Referenced by dai_diplomat_city().

dai_choose_diplomat_defensive()

void dai_choose_diplomat_defensive	(	struct ai_type *	ait,
		struct player *	pplayer,
		struct city *	pcity,
		struct adv_choice *	choice,
		int	def
	)

Calculates our need for diplomats as defensive units.

May replace values in choice. The values 16000 and 3000 used below are totally arbitrary but seem to work.

Definition at line 108 of file aidiplomat.cpp.

Referenced by military_advisor_choose_build().

dai_choose_diplomat_offensive()

void dai_choose_diplomat_offensive	(	struct ai_type *	ait,
		struct player *	pplayer,
		struct city *	pcity,
		struct adv_choice *	choice
	)

Calculates our need for diplomats as offensive units.

May replace values in choice.

Definition at line 155 of file aidiplomat.cpp.

Referenced by military_advisor_choose_build().

dai_diplomat_bribe_nearby()

static bool dai_diplomat_bribe_nearby ( struct ai_type *  ait, struct player *  pplayer, struct unit *  punit, struct pf_map *  pfm  )

static

Find units that we can reach, and bribe them.

Returns TRUE if survived the ordeal, FALSE if not or we expended all our movement. Will try to bribe a ship on the coast as well as land stuff.

Definition at line 570 of file aidiplomat.cpp.

Referenced by dai_manage_diplomat().

dai_diplomat_city()

static void dai_diplomat_city ( struct ai_type *  ait, struct unit *  punit, struct city *  ctarget  )

static

Check if something is on our receiving end for some nasty diplomat business! Note that punit may die or be moved during this function.

We must be adjacent to target city.

We try to make embassy first, and abort if we already have one and target is allied. Then we steal, incite, sabotage or poison the city, in that order of priority.

Definition at line 305 of file aidiplomat.cpp.

Referenced by dai_manage_diplomat().

dai_diplomat_defend()

static struct city* dai_diplomat_defend ( struct ai_type *  ait, struct player *  pplayer, struct unit *  punit, const struct unit_type *  utype, struct pf_map *  pfm  )

static

Go to nearest/most threatened city (can be the current city too).

Definition at line 501 of file aidiplomat.cpp.

Referenced by dai_manage_diplomat().

dai_manage_diplomat()

void dai_manage_diplomat	(	struct ai_type *	ait,
		struct player *	pplayer,
		struct unit *	punit
	)

If we are the only diplomat in a threatened city, defend against enemy actions.

The passive defense is set by game.diplchance. The active defense is to bribe units which end their move nearby. Our next trick is to look for enemy cities on our continent and do our diplomat things.

FIXME: It is important to establish contact with all civilizations, so we should send diplomats by boat eventually. I just don't know how that part of the code works, yet - Per

Definition at line 696 of file aidiplomat.cpp.

Referenced by dai_manage_unit().

find_city_to_diplomat()

static void find_city_to_diplomat ( struct player *  pplayer, struct unit *  punit, struct city **  ctarget, int *  move_dist, struct pf_map *  pfm  )

static

Returns (in ctarget) the closest city to send diplomats against, or nullptr if none available on this continent.

punit can be virtual.

Definition at line 420 of file aidiplomat.cpp.

Referenced by dai_choose_diplomat_offensive(), and dai_manage_diplomat().

is_city_surrounded_by_our_spies()

static bool is_city_surrounded_by_our_spies ( struct player *  pplayer, struct city *  enemy_city  )

static

Check if we have a diplomat / spy near a given city.

This is used to prevent a stack of such units next to a foreign city.

Definition at line 392 of file aidiplomat.cpp.

Referenced by find_city_to_diplomat().