aihand.cpp File Reference

#include "distribute.h"
#include "log.h"
#include "shared.h"
#include "timing.h"
#include "city.h"
#include "game.h"
#include "government.h"
#include "nation.h"
#include "packets.h"
#include "player.h"
#include "research.h"
#include "unit.h"
#include "victory.h"
#include "cm.h"
#include "cityturn.h"
#include "plrhand.h"
#include "sernet.h"
#include "spacerace.h"
#include "srv_log.h"
#include "advdata.h"
#include "advspace.h"
#include "handicaps.h"
#include "aidata.h"
#include "ailog.h"
#include "aiplayer.h"
#include "aitech.h"
#include "aitools.h"
#include "aiunit.h"
#include "daicity.h"
#include "daidiplomacy.h"
#include "daimilitary.h"
#include "aihand.h"

Include dependency graph for aihand.cpp:

Go to the source code of this file.

Macros
#define	LOGLEVEL_TAX   LOG_DEBUG
	A man builds a city With banks and cathedrals A man melts the sand so he can See the world outside A man makes a car And builds a road to run them on A man dreams of leaving but he always stays behind And these are the days when our work has come assunder And these are the days when we look for something other /U2 Lemon. More...
#define	AI_GOLD_RESERVE_MIN_TURNS   10
#define	AI_BULBS_RESERVE_MIN_TURNS   10
#define	PCT_DELTA_TAX   50
#define	PCT_DELTA_SCI   10
#define	RATE_NOT_SET   -1
#define	RATE_VALID(_rate)   (_rate != RATE_NOT_SET)
#define	RATE_REMAINS(_rates)

Enumerations
enum	{ AI_RATE_SCI = 0 , AI_RATE_TAX , AI_RATE_LUX , AI_RATE_COUNT }
	Additional data needed for the AI rates calculation. More...
enum	celebration { AI_CELEBRATION_UNCHECKED , AI_CELEBRATION_NO , AI_CELEBRATION_YES }

Functions
static void	dai_manage_spaceship (struct player *pplayer)
	Handle spaceship related stuff. More...
void	dai_calc_data (const struct player *pplayer, int *trade, int *expenses, int *income)
	Returns the total amount of trade generated (trade) and total amount of gold needed as upkeep (expenses). More...
static void	dai_manage_taxes (struct ai_type *ait, struct player *pplayer)
	Set tax/science/luxury rates. More...
static void	dai_manage_government (struct ai_type *ait, struct player *pplayer)
	Change the government form, if it can and there is a good reason. More...
void	dai_do_first_activities (struct ai_type *ait, struct player *pplayer)
	Activities to be done by AI before human turn. More...
void	dai_do_last_activities (struct ai_type *ait, struct player *pplayer)
	Activities to be done by AI after human turn. More...

Macro Definition Documentation

AI_BULBS_RESERVE_MIN_TURNS

#define AI_BULBS_RESERVE_MIN_TURNS   10

Definition at line 81 of file aihand.cpp.

AI_GOLD_RESERVE_MIN_TURNS

#define AI_GOLD_RESERVE_MIN_TURNS   10

Definition at line 80 of file aihand.cpp.

LOGLEVEL_TAX

#define LOGLEVEL_TAX   LOG_DEBUG

A man builds a city With banks and cathedrals A man melts the sand so he can See the world outside A man makes a car And builds a road to run them on A man dreams of leaving but he always stays behind And these are the days when our work has come assunder And these are the days when we look for something other /U2 Lemon.

Definition at line 75 of file aihand.cpp.

PCT_DELTA_SCI

#define PCT_DELTA_SCI   10

Definition at line 86 of file aihand.cpp.

PCT_DELTA_TAX

#define PCT_DELTA_TAX   50

Definition at line 85 of file aihand.cpp.

RATE_NOT_SET

#define RATE_NOT_SET   -1

Definition at line 163 of file aihand.cpp.

RATE_REMAINS

#define RATE_REMAINS

(

_rates

)

Value:

  MAX(0, 100 - _rates[AI_RATE_SCI] - _rates[AI_RATE_TAX]                    \
             - _rates[AI_RATE_LUX])

Definition at line 165 of file aihand.cpp.

RATE_VALID

#define RATE_VALID

(

_rate

)

(_rate != RATE_NOT_SET)

Definition at line 164 of file aihand.cpp.

Enumeration Type Documentation

anonymous enum

anonymous enum

Additional data needed for the AI rates calculation.

Enumerator
AI_RATE_SCI
AI_RATE_TAX
AI_RATE_LUX
AI_RATE_COUNT

Definition at line 155 of file aihand.cpp.

celebration

enum celebration

Enumerator
AI_CELEBRATION_UNCHECKED
AI_CELEBRATION_NO
AI_CELEBRATION_YES

Definition at line 157 of file aihand.cpp.

Function Documentation

dai_calc_data()

void dai_calc_data	(	const struct player *	pplayer,
		int *	trade,
		int *	expenses,
		int *	income
	)

Returns the total amount of trade generated (trade) and total amount of gold needed as upkeep (expenses).

Definition at line 111 of file aihand.cpp.

Referenced by dai_action_value_unit_vs_city(), dai_choose_diplomat_offensive(), dai_diplomat_bribe_nearby(), dai_manage_taxes(), dai_spend_gold(), dai_upgrade_units(), and find_city_to_diplomat().

dai_do_first_activities()

void dai_do_first_activities	(	struct ai_type *	ait,
		struct player *	pplayer
	)

Activities to be done by AI before human turn.

Here we just move the units intelligently.

Definition at line 731 of file aihand.cpp.

Referenced by cai_do_first_activities(), texwai_first_activities(), and twai_first_activities().

dai_do_last_activities()

void dai_do_last_activities	(	struct ai_type *	ait,
		struct player *	pplayer
	)

Activities to be done by AI after human turn.

Here we respond to dangers created by human and AI opposition by ordering defenders in cities and setting taxes accordingly. We also do other duties.

We do not move units here, otherwise humans complain that AI moves twice.

Definition at line 757 of file aihand.cpp.

Referenced by cai_do_last_activities(), texwai_last_activities(), and twai_last_activities().

dai_manage_government()

static void dai_manage_government ( struct ai_type *  ait, struct player *  pplayer  )

static

Change the government form, if it can and there is a good reason.

Definition at line 689 of file aihand.cpp.

Referenced by dai_do_last_activities().

dai_manage_spaceship()

static void dai_manage_spaceship ( struct player *  pplayer )

static

Handle spaceship related stuff.

Definition at line 91 of file aihand.cpp.

Referenced by dai_do_last_activities().

dai_manage_taxes()

static void dai_manage_taxes ( struct ai_type *  ait, struct player *  pplayer  )

static

Set tax/science/luxury rates.

TODO: Add general support for luxuries: select the luxury rate at which all cities are content and the trade output (minus what is consumed by luxuries) is maximal. For this we need some more information from the city management code.

TODO: Audit the use of pplayer->ai.maxbuycost in the code elsewhere, then add support for it here.

This function first determins the minimum tax rate (rate_tax_min) and a tax rate for a balanced treasury (rate_tax_balance). Similarily, the science rates are determiend (rate_sci_min and rate_sci_balance). Considering the minimum rates for tax and science the chance for celebrations is checked. If celebration is possible for more than half of the cities, the needed luxury rate is saved as rate_lux_min_celebrate. For celebration some reserves are defined (see turns_for_rapture).

At the end the results are compared and the rates are selected as:

1. Go for celebration.
2. Use a balanced science and treasury.
3. go for a balaned treasury / science.
4. Try to select the best (risk of tech loss or have to sell something).

At the end the remaining is divided on science/gold/luxury depending on the AI settings.

Definition at line 198 of file aihand.cpp.

Referenced by dai_do_last_activities().