ai_building.cpp File Reference

#include "stratagus.h"
#include "ai_local.h"
#include "map.h"
#include "pathfinder.h"
#include "player.h"
#include "tileset.h"
#include "unit.h"
#include "unit_find.h"
#include "unittype.h"

Classes
class	BuildingPlaceFinder
class	HallPlaceFinder
class	LumberMillPlaceFinder

Functions
ai_building.cpp - AI building functions.
static bool	IsPosFree (const Vec2i &pos, const CUnit &exceptionUnit)
static bool	AiCheckSurrounding (const CUnit &worker, const CUnitType &type, const Vec2i &pos, bool &backupok)
static bool	AiFindBuildingPlace2 (const CUnit &worker, const CUnitType &type, const Vec2i &startPos, const CUnit *startUnit, bool checkSurround, Vec2i *resultPos)
static bool	AiFindHallPlace (const CUnit &worker, const CUnitType &type, const Vec2i &startPos, int resource, Vec2i *resultPos)
static bool	AiFindLumberMillPlace (const CUnit &worker, const CUnitType &type, const Vec2i &startPos, int resource, Vec2i *resultPos)
static bool	AiFindMiningPlace (const CUnit &worker, const CUnitType &type, const Vec2i &startPos, int resource, Vec2i *resultPos)
bool	AiFindBuildingPlace (const CUnit &worker, const CUnitType &type, const Vec2i &nearPos, Vec2i *resultPos)
	Find nice building place. More...

Function Documentation

AiCheckSurrounding()

static bool AiCheckSurrounding ( const CUnit &  worker, const CUnitType &  type, const Vec2i &  pos, bool &  backupok  )

static

Check if the surrounding are free. Depending on the value of flag, it will check : 0: the building will not block any way 1: all surrounding is free

Parameters

worker	Worker to build.
type	Type of building.
pos	map tile position for the building.
backupok	Location can be used as a backup

Returns

True if the surrounding is free, false otherwise.

Note

Can be faster written.

AiFindBuildingPlace()

bool AiFindBuildingPlace	(	const CUnit &	worker,
		const CUnitType &	type,
		const Vec2i &	nearPos,
		Vec2i *	resultPos
	)

Find nice building place.

Find free building place.

Parameters

worker	Worker to build building.
type	Type of building.
nearPos	Start search near nearPos position (or worker->X if nearPos is invalid).
resultPos	Pointer for position returned.

Returns

True if place found, false if no found.

Todo:

Better and faster way to find building place of oil platforms Special routines for special buildings.

AiFindBuildingPlace2()

static bool AiFindBuildingPlace2 ( const CUnit &  worker, const CUnitType &  type, const Vec2i &  startPos, const CUnit *  startUnit, bool  checkSurround, Vec2i *  resultPos  )

static

Find free building place. (flood fill version)

Parameters

worker	Worker to build building.
type	Type of building.
startPos	Original position to try building
checkSurround	Check if the perimeter of the building is free
resultPos	OUT: Pointer for position returned.

Returns

True if place found, false if no found.

AiFindHallPlace()

static bool AiFindHallPlace ( const CUnit &  worker, const CUnitType &  type, const Vec2i &  startPos, int  resource, Vec2i *  resultPos  )

static

Find building place for hall. (flood fill version)

The best place: 1) near to resource. !2) near to wood. !3) near to worker and must be reachable. 4) no enemy near it. 5) no hall already near !6) enough gold in mine

Parameters

worker	Worker to build building.
type	Type of building.
startPos	Start search position (if == -1 then unit X pos used).
resource	resource to be near.
resultPos	OUT: Pointer for position returned.

Returns

True if place found, false if not found.

Todo:

FIXME: This is slow really slow, using two flood fills, is not a perfect solution.

AiFindLumberMillPlace()

static bool AiFindLumberMillPlace ( const CUnit &  worker, const CUnitType &  type, const Vec2i &  startPos, int  resource, Vec2i *  resultPos  )

static

Find free building place for lumber mill. (flood fill version)

Parameters

worker	Worker to build building.
type	Type of building.
resource	resource terrain to be near.
startPos	Start search X position (if == -1 then unit X pos used).
resultPos	OUT: Pointer for position returned.

Returns

True if place found, false if not found.

Todo:

FIXME: This is slow really slow, using two flood fills, is not a perfect solution.

AiFindMiningPlace()

static bool AiFindMiningPlace ( const CUnit &  worker, const CUnitType &  type, const Vec2i &  startPos, int  resource, Vec2i *  resultPos  )

static

IsPosFree()

static bool IsPosFree ( const Vec2i &  pos, const CUnit &  exceptionUnit  )

static