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Refactoring.

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Dividing CBattleCallback into smaller files with classes.
This commit is contained in:
FeniksFire 2017-06-24 15:51:07 +02:00
parent 6c8192956e
commit 221386a39d
18 changed files with 1076 additions and 891 deletions
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2
lib/BattleInfo.h
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@ -11,7 +11,7 @@
#include "SiegeInfo.h"
#include "SideInBattle.h"
#include "HeroBonus.h"
#include "CBattleCallback.h"
#include "battle/CBattleInfoCallback.h"
#include "int3.h"
class CStack;

2
lib/CGameInfoCallback.h
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@ -1,7 +1,7 @@
#pragma once
#include "ResourceSet.h" // for Res::ERes
#include "CBattleCallback.h" //for CCallbackBase
#include "battle/CPlayerBattleCallback.h"
/*
* CGameInfoCallback.h, part of VCMI engine

16
lib/CMakeLists.txt
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@ -78,12 +78,18 @@ set(lib_SRCS
BattleAction.cpp
BattleHex.cpp
BattleInfo.cpp
SiegeInfo.cpp
SideInBattle.cpp
CStack.cpp
BattleInfo.cpp
battle/AccessibilityInfo.cpp
battle/BattleAttackInfo.cpp
battle/CBattleInfoCallback.cpp
battle/CBattleInfoEssentials.cpp
battle/CCallbackBase.cpp
battle/CPlayerBattleCallback.cpp
battle/ReachabilityInfo.cpp
SiegeInfo.cpp
SideInBattle.cpp
CStack.cpp
CArtHandler.cpp
CBattleCallback.cpp
CBonusTypeHandler.cpp
CBuildingHandler.cpp
CConfigHandler.cpp

53
lib/battle/AccessibilityInfo.cpp Normal file
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@ -0,0 +1,53 @@
/*
* AccessibilityInfo.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "AccessibilityInfo.h"
#include "CStack.h"
bool AccessibilityInfo::accessible(BattleHex tile, const CStack *stack) const
{
return accessible(tile, stack->doubleWide(), stack->attackerOwned);
}
bool AccessibilityInfo::accessible(BattleHex tile, bool doubleWide, bool attackerOwned) const
{
// All hexes that stack would cover if standing on tile have to be accessible.
for(auto hex : CStack::getHexes(tile, doubleWide, attackerOwned))
{
// If the hex is out of range then the tile isn't accessible
if(!hex.isValid())
return false;
// If we're no defender which step on gate and the hex isn't accessible, then the tile
// isn't accessible
else if(at(hex) != EAccessibility::ACCESSIBLE &&
!(at(hex) == EAccessibility::GATE && !attackerOwned))
{
return false;
}
}
return true;
}
bool AccessibilityInfo::occupiable(const CStack *stack, BattleHex tile) const
{
//obviously, we can occupy tile by standing on it
if(accessible(tile, stack))
return true;
if(stack->doubleWide())
{
//Check the tile next to -> if stack stands there, it'll also occupy considered hex
const BattleHex anotherTile = tile + (stack->attackerOwned ? BattleHex::RIGHT : BattleHex::LEFT);
if(accessible(anotherTile, stack))
return true;
}
return false;
}

37
lib/battle/AccessibilityInfo.h Normal file
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@ -0,0 +1,37 @@
/*
* AccessibilityInfo.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "BattleHex.h"
class CStack;
//Accessibility is property of hex in battle. It doesn't depend on stack, side's perspective and so on.
namespace EAccessibility
{
enum EAccessibility
{
ACCESSIBLE,
ALIVE_STACK,
OBSTACLE,
DESTRUCTIBLE_WALL,
GATE, //sieges -> gate opens only for defender stacks
UNAVAILABLE, //indestructible wall parts, special battlefields (like boat-to-boat)
SIDE_COLUMN //used for first and last columns of hexes that are unavailable but wat machines can stand there
};
}
typedef std::array<EAccessibility::EAccessibility, GameConstants::BFIELD_SIZE> TAccessibilityArray;
struct DLL_LINKAGE AccessibilityInfo : TAccessibilityArray
{
bool occupiable(const CStack *stack, BattleHex tile) const;
bool accessible(BattleHex tile, const CStack *stack) const; //checks for both tiles if stack is double wide
bool accessible(BattleHex tile, bool doubleWide, bool attackerOwned) const; //checks for both tiles if stack is double wide
};

51
lib/battle/BattleAttackInfo.cpp Normal file
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@ -0,0 +1,51 @@
/*
* BattleAttackInfo.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "BattleAttackInfo.h"
#include "CStack.h"
BattleAttackInfo::BattleAttackInfo(const CStack *Attacker, const CStack *Defender, bool Shooting)
{
attacker = Attacker;
defender = Defender;
attackerBonuses = Attacker;
defenderBonuses = Defender;
attackerPosition = Attacker->position;
defenderPosition = Defender->position;
attackerCount = Attacker->count;
defenderCount = Defender->count;
shooting = Shooting;
chargedFields = 0;
luckyHit = false;
unluckyHit = false;
deathBlow = false;
ballistaDoubleDamage = false;
}
BattleAttackInfo BattleAttackInfo::reverse() const
{
BattleAttackInfo ret = *this;
std::swap(ret.attacker, ret.defender);
std::swap(ret.attackerBonuses, ret.defenderBonuses);
std::swap(ret.attackerPosition, ret.defenderPosition);
std::swap(ret.attackerCount, ret.defenderCount);
ret.shooting = false;
ret.chargedFields = 0;
ret.luckyHit = ret.ballistaDoubleDamage = ret.deathBlow = false;
return ret;
}

33
lib/battle/BattleAttackInfo.h Normal file
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@ -0,0 +1,33 @@
/*
* BattleAttackInfo.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "BattleHex.h"
class CStack;
class IBonusBearer;
struct DLL_LINKAGE BattleAttackInfo
{
const IBonusBearer *attackerBonuses, *defenderBonuses;
const CStack *attacker, *defender;
BattleHex attackerPosition, defenderPosition;
int attackerCount, defenderCount;
bool shooting;
int chargedFields;
bool luckyHit;
bool unluckyHit;
bool deathBlow;
bool ballistaDoubleDamage;
BattleAttackInfo(const CStack *Attacker, const CStack *Defender, bool Shooting = false);
BattleAttackInfo reverse() const;
};

809
lib/CBattleCallback.cpp → lib/battle/CBattleInfoCallback.cpp
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@ -1,14 +1,3 @@
#include "StdInc.h"
#include "CBattleCallback.h"
#include "CStack.h"
#include "BattleInfo.h"
#include "CGameState.h"
#include "NetPacks.h"
#include "spells/CSpellHandler.h"
#include "VCMI_Lib.h"
#include "CTownHandler.h"
#include "mapObjects/CGTownInstance.h"
/*
* CBattleCallback.cpp, part of VCMI engine
*
@ -18,331 +7,95 @@
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "CBattleInfoCallback.h"
#include "CStack.h"
#include "BattleInfo.h"
#include "NetPacks.h"
#include "spells/CSpellHandler.h"
#include "mapObjects/CGTownInstance.h"
#define RETURN_IF_NOT_BATTLE(X) if(!duringBattle()) {logGlobal->errorStream() << __FUNCTION__ << " called when no battle!"; return X; }
namespace SiegeStuffThatShouldBeMovedToHandlers // <=== TODO
{
static void retreiveTurretDamageRange(const CGTownInstance * town, const CStack *turret, double &outMinDmg, double &outMaxDmg)
static void retreiveTurretDamageRange(const CGTownInstance * town, const CStack *turret, double &outMinDmg, double &outMaxDmg)
{
assert(turret->getCreature()->idNumber == CreatureID::ARROW_TOWERS);
assert(town);
assert(turret->position >= -4 && turret->position <= -2);
float multiplier = (turret->position == -2) ? 1 : 0.5;
int baseMin = 6;
int baseMax = 10;
outMinDmg = multiplier * (baseMin + town->getTownLevel() * 2);
outMaxDmg = multiplier * (baseMax + town->getTownLevel() * 3);
}
static BattleHex lineToWallHex(int line) //returns hex with wall in given line (y coordinate)
{
static const BattleHex lineToHex[] = {12, 29, 45, 62, 78, 95, 112, 130, 147, 165, 182};
return lineToHex[line];
}
static bool sameSideOfWall(BattleHex pos1, BattleHex pos2)
{
const int wallInStackLine = lineToWallHex(pos1.getY());
const int wallInDestLine = lineToWallHex(pos2.getY());
const bool stackLeft = pos1 < wallInStackLine;
const bool destLeft = pos2 < wallInDestLine;
return stackLeft == destLeft;
}
// parts of wall
static const std::pair<int, EWallPart::EWallPart> wallParts[] =
{
std::make_pair(50, EWallPart::KEEP),
std::make_pair(183, EWallPart::BOTTOM_TOWER),
std::make_pair(182, EWallPart::BOTTOM_WALL),
std::make_pair(130, EWallPart::BELOW_GATE),
std::make_pair(78, EWallPart::OVER_GATE),
std::make_pair(29, EWallPart::UPPER_WALL),
std::make_pair(12, EWallPart::UPPER_TOWER),
std::make_pair(95, EWallPart::INDESTRUCTIBLE_PART_OF_GATE),
std::make_pair(96, EWallPart::GATE),
std::make_pair(45, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(62, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(112, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(147, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(165, EWallPart::INDESTRUCTIBLE_PART)
};
static EWallPart::EWallPart hexToWallPart(BattleHex hex)
{
for(auto & elem : wallParts)
{
assert(turret->getCreature()->idNumber == CreatureID::ARROW_TOWERS);
assert(town);
assert(turret->position >= -4 && turret->position <= -2);
float multiplier = (turret->position == -2) ? 1 : 0.5;
int baseMin = 6;
int baseMax = 10;
outMinDmg = multiplier * (baseMin + town->getTownLevel() * 2);
outMaxDmg = multiplier * (baseMax + town->getTownLevel() * 3);
if(elem.first == hex)
return elem.second;
}
static BattleHex lineToWallHex(int line) //returns hex with wall in given line (y coordinate)
{
static const BattleHex lineToHex[] = {12, 29, 45, 62, 78, 95, 112, 130, 147, 165, 182};
return EWallPart::INVALID; //not found!
}
return lineToHex[line];
static BattleHex WallPartToHex(EWallPart::EWallPart part)
{
for(auto & elem : wallParts)
{
if(elem.second == part)
return elem.first;
}
static bool sameSideOfWall(BattleHex pos1, BattleHex pos2)
{
const int wallInStackLine = lineToWallHex(pos1.getY());
const int wallInDestLine = lineToWallHex(pos2.getY());
const bool stackLeft = pos1 < wallInStackLine;
const bool destLeft = pos2 < wallInDestLine;
return stackLeft == destLeft;
}
// parts of wall
static const std::pair<int, EWallPart::EWallPart> wallParts[] =
{
std::make_pair(50, EWallPart::KEEP),
std::make_pair(183, EWallPart::BOTTOM_TOWER),
std::make_pair(182, EWallPart::BOTTOM_WALL),
std::make_pair(130, EWallPart::BELOW_GATE),
std::make_pair(78, EWallPart::OVER_GATE),
std::make_pair(29, EWallPart::UPPER_WALL),
std::make_pair(12, EWallPart::UPPER_TOWER),
std::make_pair(95, EWallPart::INDESTRUCTIBLE_PART_OF_GATE),
std::make_pair(96, EWallPart::GATE),
std::make_pair(45, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(62, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(112, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(147, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(165, EWallPart::INDESTRUCTIBLE_PART)
};
static EWallPart::EWallPart hexToWallPart(BattleHex hex)
{
for(auto & elem : wallParts)
{
if(elem.first == hex)
return elem.second;
}
return EWallPart::INVALID; //not found!
}
static BattleHex WallPartToHex(EWallPart::EWallPart part)
{
for(auto & elem : wallParts)
{
if(elem.second == part)
return elem.first;
}
return BattleHex::INVALID; //not found!
}
return BattleHex::INVALID; //not found!
}
}
using namespace SiegeStuffThatShouldBeMovedToHandlers;
bool CCallbackBase::duringBattle() const
{
return getBattle() != nullptr;
}
void CCallbackBase::setBattle(const BattleInfo *B)
{
battle = B;
}
boost::optional<PlayerColor> CCallbackBase::getPlayerID() const
{
return player;
}
ETerrainType CBattleInfoEssentials::battleTerrainType() const
{
RETURN_IF_NOT_BATTLE(ETerrainType::WRONG);
return getBattle()->terrainType;
}
BFieldType CBattleInfoEssentials::battleGetBattlefieldType() const
{
RETURN_IF_NOT_BATTLE(BFieldType::NONE);
return getBattle()->battlefieldType;
}
std::vector<std::shared_ptr<const CObstacleInstance> > CBattleInfoEssentials::battleGetAllObstacles(boost::optional<BattlePerspective::BattlePerspective> perspective /*= boost::none*/) const
{
std::vector<std::shared_ptr<const CObstacleInstance> > ret;
RETURN_IF_NOT_BATTLE(ret);
if(!perspective)
{
//if no particular perspective request, use default one
perspective = battleGetMySide();
}
else
{
if(!!player && *perspective != battleGetMySide())
{
logGlobal->errorStream() << "Unauthorized access attempt!";
assert(0); //I want to notice if that happens
//perspective = battleGetMySide();
}
}
for(auto oi : getBattle()->obstacles)
{
if(getBattle()->battleIsObstacleVisibleForSide(*oi, *perspective))
ret.push_back(oi);
}
return ret;
}
bool CBattleInfoEssentials::battleIsObstacleVisibleForSide(const CObstacleInstance & coi, BattlePerspective::BattlePerspective side) const
{
RETURN_IF_NOT_BATTLE(false);
return side == BattlePerspective::ALL_KNOWING || coi.visibleForSide(side, battleHasNativeStack(side));
}
bool CBattleInfoEssentials::battleHasNativeStack(ui8 side) const
{
RETURN_IF_NOT_BATTLE(false);
for(const CStack *s : battleGetAllStacks())
{
if(s->attackerOwned == !side && s->getCreature()->isItNativeTerrain(getBattle()->terrainType))
return true;
}
return false;
}
TStacks CBattleInfoEssentials::battleGetAllStacks(bool includeTurrets /*= false*/) const
{
return battleGetStacksIf([=](const CStack * s)
{
return !s->isGhost() && (includeTurrets || !s->isTurret());
});
}
TStacks CBattleInfoEssentials::battleGetStacksIf(TStackFilter predicate) const
{
TStacks ret;
RETURN_IF_NOT_BATTLE(ret);
vstd::copy_if(getBattle()->stacks, std::back_inserter(ret), predicate);
return ret;
}
TStacks CBattleInfoEssentials::battleAliveStacks() const
{
return battleGetStacksIf([](const CStack * s){
return s->isValidTarget(false);
});
}
TStacks CBattleInfoEssentials::battleAliveStacks(ui8 side) const
{
return battleGetStacksIf([=](const CStack * s){
return s->isValidTarget(false) && s->attackerOwned == !side;
});
}
int CBattleInfoEssentials::battleGetMoatDmg() const
{
RETURN_IF_NOT_BATTLE(0);
auto town = getBattle()->town;
if(!town)
return 0;
return town->town->moatDamage;
}
const CGTownInstance * CBattleInfoEssentials::battleGetDefendedTown() const
{
RETURN_IF_NOT_BATTLE(nullptr);
if(!getBattle() || getBattle()->town == nullptr)
return nullptr;
return getBattle()->town;
}
BattlePerspective::BattlePerspective CBattleInfoEssentials::battleGetMySide() const
{
RETURN_IF_NOT_BATTLE(BattlePerspective::INVALID);
if(!player || player.get().isSpectator())
return BattlePerspective::ALL_KNOWING;
if(*player == getBattle()->sides[0].color)
return BattlePerspective::LEFT_SIDE;
if(*player == getBattle()->sides[1].color)
return BattlePerspective::RIGHT_SIDE;
logGlobal->errorStream() << "Cannot find player " << *player << " in battle!";
return BattlePerspective::INVALID;
}
const CStack * CBattleInfoEssentials::battleActiveStack() const
{
RETURN_IF_NOT_BATTLE(nullptr);
return battleGetStackByID(getBattle()->activeStack);
}
const CStack* CBattleInfoEssentials::battleGetStackByID(int ID, bool onlyAlive) const
{
RETURN_IF_NOT_BATTLE(nullptr);
auto stacks = battleGetStacksIf([=](const CStack * s)
{
return s->ID == ID && (!onlyAlive || s->alive());
});
if(stacks.empty())
return nullptr;
else
return stacks[0];
}
bool CBattleInfoEssentials::battleDoWeKnowAbout(ui8 side) const
{
RETURN_IF_NOT_BATTLE(false);
auto p = battleGetMySide();
return p == BattlePerspective::ALL_KNOWING || p == side;
}
si8 CBattleInfoEssentials::battleTacticDist() const
{
RETURN_IF_NOT_BATTLE(0);
return getBattle()->tacticDistance;
}
si8 CBattleInfoEssentials::battleGetTacticsSide() const
{
RETURN_IF_NOT_BATTLE(-1);
return getBattle()->tacticsSide;
}
const CGHeroInstance * CBattleInfoEssentials::battleGetFightingHero(ui8 side) const
{
RETURN_IF_NOT_BATTLE(nullptr);
if(side > 1)
{
logGlobal->errorStream() << "FIXME: " << __FUNCTION__ << " wrong argument!";
return nullptr;
}
if(!battleDoWeKnowAbout(side))
{
logGlobal->errorStream() << "FIXME: " << __FUNCTION__ << " access check ";
return nullptr;
}
return getBattle()->sides[side].hero;
}
const CArmedInstance * CBattleInfoEssentials::battleGetArmyObject(ui8 side) const
{
RETURN_IF_NOT_BATTLE(nullptr);
if(side > 1)
{
logGlobal->errorStream() << "FIXME: " << __FUNCTION__ << " wrong argument!";
return nullptr;
}
if(!battleDoWeKnowAbout(side))
{
logGlobal->errorStream() << "FIXME: " << __FUNCTION__ << " access check ";
return nullptr;
}
return getBattle()->sides[side].armyObject;
}
InfoAboutHero CBattleInfoEssentials::battleGetHeroInfo( ui8 side ) const
{
auto hero = getBattle()->sides[side].hero;
if(!hero)
{
logGlobal->warnStream() << __FUNCTION__ << ": side " << (int)side << " does not have hero!";
return InfoAboutHero();
}
InfoAboutHero::EInfoLevel infoLevel = battleDoWeKnowAbout(side) ? InfoAboutHero::EInfoLevel::DETAILED : InfoAboutHero::EInfoLevel::BASIC;
return InfoAboutHero(hero, infoLevel);
}
int CBattleInfoEssentials::battleCastSpells(ui8 side) const
{
RETURN_IF_NOT_BATTLE(-1);
return getBattle()->sides[side].castSpellsCount;
}
const IBonusBearer * CBattleInfoEssentials::getBattleNode() const
{
return getBattle();
}
ESpellCastProblem::ESpellCastProblem CBattleInfoCallback::battleCanCastSpell(const ISpellCaster * caster, ECastingMode::ECastingMode mode) const
{
RETURN_IF_NOT_BATTLE(ESpellCastProblem::INVALID);
@ -367,17 +120,17 @@ ESpellCastProblem::ESpellCastProblem CBattleInfoCallback::battleCanCastSpell(con
switch (mode)
{
case ECastingMode::HERO_CASTING:
{
if(battleCastSpells(side) > 0)
return ESpellCastProblem::ALREADY_CASTED_THIS_TURN;
{
if(battleCastSpells(side) > 0)
return ESpellCastProblem::ALREADY_CASTED_THIS_TURN;
auto hero = dynamic_cast<const CGHeroInstance *>(caster);
auto hero = dynamic_cast<const CGHeroInstance *>(caster);
if(!hero)
return ESpellCastProblem::NO_HERO_TO_CAST_SPELL;
if(hero->hasBonusOfType(Bonus::BLOCK_ALL_MAGIC))
return ESpellCastProblem::MAGIC_IS_BLOCKED;
}
if(!hero)
return ESpellCastProblem::NO_HERO_TO_CAST_SPELL;
if(hero->hasBonusOfType(Bonus::BLOCK_ALL_MAGIC))
return ESpellCastProblem::MAGIC_IS_BLOCKED;
}
break;
default:
break;
@ -386,120 +139,6 @@ ESpellCastProblem::ESpellCastProblem CBattleInfoCallback::battleCanCastSpell(con
return ESpellCastProblem::OK;
}
bool CBattleInfoEssentials::battleCanFlee(PlayerColor player) const
{
RETURN_IF_NOT_BATTLE(false);
const si8 mySide = playerToSide(player);
const CGHeroInstance *myHero = battleGetFightingHero(mySide);
//current player have no hero
if(!myHero)
return false;
//eg. one of heroes is wearing shakles of war
if(myHero->hasBonusOfType(Bonus::BATTLE_NO_FLEEING))
return false;
//we are besieged defender
if(mySide == BattleSide::DEFENDER && battleGetSiegeLevel())
{
auto town = battleGetDefendedTown();
if(!town->hasBuilt(BuildingID::ESCAPE_TUNNEL, ETownType::STRONGHOLD))
return false;
}
return true;
}
si8 CBattleInfoEssentials::playerToSide(PlayerColor player) const
{
RETURN_IF_NOT_BATTLE(-1);
int ret = vstd::find_pos_if(getBattle()->sides, [=](const SideInBattle &side){ return side.color == player; });
if(ret < 0)
logGlobal->warnStream() << "Cannot find side for player " << player;
return ret;
}
bool CBattleInfoEssentials::playerHasAccessToHeroInfo(PlayerColor player, const CGHeroInstance * h) const
{
RETURN_IF_NOT_BATTLE(false);
const si8 playerSide = playerToSide(player);
if (playerSide >= 0)
{
if (getBattle()->sides[!playerSide].hero == h)
return true;
}
return false;
}
ui8 CBattleInfoEssentials::battleGetSiegeLevel() const
{
RETURN_IF_NOT_BATTLE(0);
return getBattle()->town ? getBattle()->town->fortLevel() : CGTownInstance::NONE;
}
bool CBattleInfoEssentials::battleCanSurrender(PlayerColor player) const
{
RETURN_IF_NOT_BATTLE(false);
ui8 mySide = playerToSide(player);
bool iAmSiegeDefender = ( mySide == BattleSide::DEFENDER && battleGetSiegeLevel() );
//conditions like for fleeing (except escape tunnel presence) + enemy must have a hero
return battleCanFlee(player) && !iAmSiegeDefender && battleHasHero(!mySide);
}
bool CBattleInfoEssentials::battleHasHero(ui8 side) const
{
RETURN_IF_NOT_BATTLE(false);
assert(side < 2);
return getBattle()->sides[side].hero;
}
si8 CBattleInfoEssentials::battleGetWallState(int partOfWall) const
{
RETURN_IF_NOT_BATTLE(0);
if(getBattle()->town == nullptr || getBattle()->town->fortLevel() == CGTownInstance::NONE)
return EWallState::NONE;
assert(partOfWall >= 0 && partOfWall < EWallPart::PARTS_COUNT);
return getBattle()->si.wallState[partOfWall];
}
EGateState CBattleInfoEssentials::battleGetGateState() const
{
RETURN_IF_NOT_BATTLE(EGateState::NONE);
if(getBattle()->town == nullptr || getBattle()->town->fortLevel() == CGTownInstance::NONE)
return EGateState::NONE;
return getBattle()->si.gateState;
}
PlayerColor CBattleInfoEssentials::battleGetOwner(const CStack * stack) const
{
RETURN_IF_NOT_BATTLE(PlayerColor::CANNOT_DETERMINE);
if(stack->hasBonusOfType(Bonus::HYPNOTIZED))
return getBattle()->theOtherPlayer(stack->owner);
else
return stack->owner;
}
const CGHeroInstance * CBattleInfoEssentials::battleGetOwnerHero(const CStack * stack) const
{
RETURN_IF_NOT_BATTLE(nullptr);
return getBattle()->sides.at(playerToSide(battleGetOwner(stack))).hero;
}
bool CBattleInfoEssentials::battleMatchOwner(const CStack * attacker, const CStack * defender, const boost::logic::tribool positivness /* = false*/) const
{
RETURN_IF_NOT_BATTLE(false);
if(boost::logic::indeterminate(positivness))
return true;
else if(defender->owner != battleGetOwner(defender))
return true;//mind controlled unit is attackable for both sides
else
return (battleGetOwner(attacker) == battleGetOwner(defender)) == positivness;
}
si8 CBattleInfoCallback::battleHasWallPenalty( const CStack * stack, BattleHex destHex ) const
{
return battleHasWallPenalty(stack, stack->position, destHex);
@ -591,7 +230,7 @@ const CStack* CBattleInfoCallback::battleGetStackByPos(BattleHex pos, bool onlyA
RETURN_IF_NOT_BATTLE(nullptr);
for(auto s : battleGetAllStacks(true))
if(vstd::contains(s->getHexes(), pos) && (!onlyAlive || s->alive()))
return s;
return s;
return nullptr;
}
@ -605,7 +244,7 @@ void CBattleInfoCallback::battleGetStackQueue(std::vector<const CStack *> &out,
{
const CStack *ret = nullptr;
unsigned i, //fastest stack
j=0; //fastest stack of the other side
j=0; //fastest stack of the other side
for(i = 0; i < st.size(); i++)
if(st[i])
break;
@ -683,8 +322,8 @@ void CBattleInfoCallback::battleGetStackQueue(std::vector<const CStack *> &out,
for(auto s : battleGetAllStacks(true))
{
if((turn <= 0 && !s->willMove()) //we are considering current round and stack won't move
|| (turn > 0 && !s->canMove(turn)) //stack won't be able to move in later rounds
|| (turn <= 0 && s == active && out.size() && s == out.front())) //it's active stack already added at the beginning of queue
|| (turn > 0 && !s->canMove(turn)) //stack won't be able to move in later rounds
|| (turn <= 0 && s == active && out.size() && s == out.front())) //it's active stack already added at the beginning of queue
{
continue;
}
@ -811,7 +450,7 @@ std::vector<BattleHex> CBattleInfoCallback::battleGetAvailableHexes(const CStack
// Return true if given hex has at least one available neighbour.
// Available hexes are already present in ret vector.
auto availableNeighbor = boost::find_if(ret, [=] (BattleHex availableHex)
{ return BattleHex::mutualPosition(hex, availableHex) >= 0; });
{ return BattleHex::mutualPosition(hex, availableHex) >= 0; });
return availableNeighbor != ret.end();
};
@ -893,11 +532,11 @@ bool CBattleInfoCallback::battleCanShoot(const CStack * stack, BattleHex dest) c
return false;
if(stack->hasBonusOfType(Bonus::SHOOTER)//it's shooter
&& battleMatchOwner(stack, dst)
&& dst->alive()
&& (!battleIsStackBlocked(stack) || stack->hasBonusOfType(Bonus::FREE_SHOOTING))
&& stack->shots
)
&& battleMatchOwner(stack, dst)
&& dst->alive()
&& (!battleIsStackBlocked(stack) || stack->hasBonusOfType(Bonus::FREE_SHOOTING))
&& stack->shots
)
return true;
return false;
}
@ -914,19 +553,19 @@ TDmgRange CBattleInfoCallback::calculateDmgRange(const BattleAttackInfo &info) c
{
auto noLimit = Selector::effectRange(Bonus::NO_LIMIT);
auto limitMatches = info.shooting
? Selector::effectRange(Bonus::ONLY_DISTANCE_FIGHT)
: Selector::effectRange(Bonus::ONLY_MELEE_FIGHT);
? Selector::effectRange(Bonus::ONLY_DISTANCE_FIGHT)
: Selector::effectRange(Bonus::ONLY_MELEE_FIGHT);
//any regular bonuses or just ones for melee/ranged
return bearer->getBonuses(selector, noLimit.Or(limitMatches))->totalValue();
};
double additiveBonus = 1.0, multBonus = 1.0,
minDmg = info.attackerBonuses->getMinDamage() * info.attackerCount,//TODO: ONLY_MELEE_FIGHT / ONLY_DISTANCE_FIGHT
maxDmg = info.attackerBonuses->getMaxDamage() * info.attackerCount;
minDmg = info.attackerBonuses->getMinDamage() * info.attackerCount,//TODO: ONLY_MELEE_FIGHT / ONLY_DISTANCE_FIGHT
maxDmg = info.attackerBonuses->getMaxDamage() * info.attackerCount;
const CCreature *attackerType = info.attacker->getCreature(),
*defenderType = info.defender->getCreature();
*defenderType = info.defender->getCreature();
if(attackerType->idNumber == CreatureID::ARROW_TOWERS)
{
@ -965,8 +604,8 @@ TDmgRange CBattleInfoCallback::calculateDmgRange(const BattleAttackInfo &info) c
for(const std::shared_ptr<Bonus> b : VLC->creh->creatures[g]->getBonusList())
{
if ( (b->type == Bonus::KING3 && spLevel >= 3) || //expert
(b->type == Bonus::KING2 && spLevel >= 2) || //adv +
(b->type == Bonus::KING1 && spLevel >= 0) ) //none or basic +
(b->type == Bonus::KING2 && spLevel >= 2) || //adv +
(b->type == Bonus::KING1 && spLevel >= 0) ) //none or basic +
{
affectedIds.push_back(g);
break;
@ -1078,8 +717,8 @@ TDmgRange CBattleInfoCallback::calculateDmgRange(const BattleAttackInfo &info) c
auto isAdvancedAirShield = [](const Bonus* bonus)
{
return bonus->source == Bonus::SPELL_EFFECT
&& bonus->sid == SpellID::AIR_SHIELD
&& bonus->val >= SecSkillLevel::ADVANCED;
&& bonus->sid == SpellID::AIR_SHIELD
&& bonus->val >= SecSkillLevel::ADVANCED;
};
//wall / distance penalty + advanced air shield
@ -1140,7 +779,7 @@ TDmgRange CBattleInfoCallback::calculateDmgRange(const BattleAttackInfo &info) c
}
TDmgRange CBattleInfoCallback::calculateDmgRange( const CStack* attacker, const CStack* defender, TQuantity attackerCount,
bool shooting, ui8 charge, bool lucky, bool unlucky, bool deathBlow, bool ballistaDoubleDmg ) const
bool shooting, ui8 charge, bool lucky, bool unlucky, bool deathBlow, bool ballistaDoubleDmg ) const
{
BattleAttackInfo bai(attacker, defender, shooting);
bai.attackerCount = attackerCount;
@ -1201,7 +840,7 @@ std::shared_ptr<const CObstacleInstance> CBattleInfoCallback::battleGetObstacleO
for(auto &obs : battleGetAllObstacles())
{
if(vstd::contains(obs->getBlockedTiles(), tile)
|| (!onlyBlocking && vstd::contains(obs->getAffectedTiles(), tile)))
|| (!onlyBlocking && vstd::contains(obs->getAffectedTiles(), tile)))
{
return obs;
}
@ -1423,7 +1062,7 @@ bool CBattleInfoCallback::isInTacticRange(BattleHex dest) const
auto dist = battleGetTacticDist();
return ((!side && dest.getX() > 0 && dest.getX() <= dist)
|| (side && dest.getX() < GameConstants::BFIELD_WIDTH - 1 && dest.getX() >= GameConstants::BFIELD_WIDTH - dist - 1));
|| (side && dest.getX() < GameConstants::BFIELD_WIDTH - 1 && dest.getX() >= GameConstants::BFIELD_WIDTH - dist - 1));
}
ReachabilityInfo CBattleInfoCallback::getReachability(const CStack *stack) const
@ -1680,7 +1319,7 @@ bool CBattleInfoCallback::isWallPartPotentiallyAttackable(EWallPart::EWallPart w
{
RETURN_IF_NOT_BATTLE(false);
return wallPart != EWallPart::INDESTRUCTIBLE_PART && wallPart != EWallPart::INDESTRUCTIBLE_PART_OF_GATE &&
wallPart != EWallPart::INVALID;
wallPart != EWallPart::INVALID;
}
std::vector<BattleHex> CBattleInfoCallback::getAttackableBattleHexes() const
@ -1737,8 +1376,13 @@ const CStack * CBattleInfoCallback::getStackIf(std::function<bool(const CStack*)
auto stacks = battleGetAllStacks();
auto stackItr = range::find_if(stacks, pred);
return stackItr == stacks.end()
? nullptr
: *stackItr;
? nullptr
: *stackItr;
}
si8 CBattleInfoCallback::battleHasShootingPenalty(const CStack * stack, BattleHex destHex)
{
return battleHasDistancePenalty(stack, destHex) || battleHasWallPenalty(stack, destHex);
}
bool CBattleInfoCallback::battleIsStackBlocked(const CStack * stack) const
@ -1812,33 +1456,33 @@ SpellID CBattleInfoCallback::getRandomBeneficialSpell(CRandomGenerator & rand, c
cachingStr << "source_" << Bonus::SPELL_EFFECT << "id_" << spellID.num;
if(subject->hasBonus(Selector::source(Bonus::SPELL_EFFECT, spellID), Selector::all, cachingStr.str())
//TODO: this ability has special limitations
|| spellID.toSpell()->canBeCastAt(this, subject, ECastingMode::CREATURE_ACTIVE_CASTING, subject->position) != ESpellCastProblem::OK)
//TODO: this ability has special limitations
|| spellID.toSpell()->canBeCastAt(this, subject, ECastingMode::CREATURE_ACTIVE_CASTING, subject->position) != ESpellCastProblem::OK)
continue;
switch (spellID)
{
case SpellID::SHIELD:
case SpellID::FIRE_SHIELD: // not if all enemy units are shooters
{
auto walker = getAliveEnemy([&](const CStack * stack) //look for enemy, non-shooting stack
{
auto walker = getAliveEnemy([&](const CStack * stack) //look for enemy, non-shooting stack
{
return !stack->shots;
});
return !stack->shots;
});
if (!walker)
continue;
}
if (!walker)
continue;
}
break;
case SpellID::AIR_SHIELD: //only against active shooters
{
auto shooter = getAliveEnemy([&](const CStack * stack) //look for enemy, non-shooting stack
{
auto shooter = getAliveEnemy([&](const CStack * stack) //look for enemy, non-shooting stack
{
return stack->hasBonusOfType(Bonus::SHOOTER) && stack->shots;
});
if (!shooter)
continue;
}
return stack->hasBonusOfType(Bonus::SHOOTER) && stack->shots;
});
if (!shooter)
continue;
}
break;
case SpellID::ANTI_MAGIC:
case SpellID::MAGIC_MIRROR:
@ -1846,46 +1490,46 @@ SpellID CBattleInfoCallback::getRandomBeneficialSpell(CRandomGenerator & rand, c
case SpellID::PROTECTION_FROM_EARTH:
case SpellID::PROTECTION_FROM_FIRE:
case SpellID::PROTECTION_FROM_WATER:
{
const ui8 enemySide = (ui8)subject->attackerOwned;
//todo: only if enemy has spellbook
if (!battleHasHero(enemySide)) //only if there is enemy hero
continue;
}
{
const ui8 enemySide = (ui8)subject->attackerOwned;
//todo: only if enemy has spellbook
if (!battleHasHero(enemySide)) //only if there is enemy hero
continue;
}
break;
case SpellID::CURE: //only damaged units
{
//do not cast on affected by debuffs
if (subject->firstHPleft >= subject->MaxHealth())
continue;
}
{
//do not cast on affected by debuffs
if (subject->firstHPleft >= subject->MaxHealth())
continue;
}
break;
case SpellID::BLOODLUST:
{
if (subject->shots) //if can shoot - only if enemy uits are adjacent
continue;
}
{
if (subject->shots) //if can shoot - only if enemy uits are adjacent
continue;
}
break;
case SpellID::PRECISION:
{
if (!(subject->hasBonusOfType(Bonus::SHOOTER) && subject->shots))
continue;
}
{
if (!(subject->hasBonusOfType(Bonus::SHOOTER) && subject->shots))
continue;
}
break;
case SpellID::SLAYER://only if monsters are present
{
auto kingMonster = getAliveEnemy([&](const CStack *stack) -> bool //look for enemy, non-shooting stack
{
auto kingMonster = getAliveEnemy([&](const CStack *stack) -> bool //look for enemy, non-shooting stack
{
const auto isKing = Selector::type(Bonus::KING1)
.Or(Selector::type(Bonus::KING2))
.Or(Selector::type(Bonus::KING3));
const auto isKing = Selector::type(Bonus::KING1)
.Or(Selector::type(Bonus::KING2))
.Or(Selector::type(Bonus::KING3));
return stack->hasBonus(isKing);
});
return stack->hasBonus(isKing);
});
if (!kingMonster)
continue;
}
if (!kingMonster)
continue;
}
break;
}
beneficialSpells.push_back(spellID);
@ -1993,140 +1637,3 @@ boost::optional<int> CBattleInfoCallback::battleIsFinished() const
return 1;
return boost::none;
}
bool AccessibilityInfo::accessible(BattleHex tile, const CStack *stack) const
{
return accessible(tile, stack->doubleWide(), stack->attackerOwned);
}
bool AccessibilityInfo::accessible(BattleHex tile, bool doubleWide, bool attackerOwned) const
{
// All hexes that stack would cover if standing on tile have to be accessible.
for(auto hex : CStack::getHexes(tile, doubleWide, attackerOwned))
{
// If the hex is out of range then the tile isn't accessible
if(!hex.isValid())
return false;
// If we're no defender which step on gate and the hex isn't accessible, then the tile
// isn't accessible
else if(at(hex) != EAccessibility::ACCESSIBLE &&
!(at(hex) == EAccessibility::GATE && !attackerOwned))
{
return false;
}
}
return true;
}
bool AccessibilityInfo::occupiable(const CStack *stack, BattleHex tile) const
{
//obviously, we can occupy tile by standing on it
if(accessible(tile, stack))
return true;
if(stack->doubleWide())
{
//Check the tile next to -> if stack stands there, it'll also occupy considered hex
const BattleHex anotherTile = tile + (stack->attackerOwned ? BattleHex::RIGHT : BattleHex::LEFT);
if(accessible(anotherTile, stack))
return true;
}
return false;
}
ReachabilityInfo::Parameters::Parameters()
{
stack = nullptr;
perspective = BattlePerspective::ALL_KNOWING;
attackerOwned = doubleWide = flying = false;
}
ReachabilityInfo::Parameters::Parameters(const CStack *Stack)
{
stack = Stack;
perspective = (BattlePerspective::BattlePerspective)(!Stack->attackerOwned);
startPosition = Stack->position;
doubleWide = stack->doubleWide();
attackerOwned = stack->attackerOwned;
flying = stack->hasBonusOfType(Bonus::FLYING);
knownAccessible = stack->getHexes();
}
bool CPlayerBattleCallback::battleCanFlee() const
{
RETURN_IF_NOT_BATTLE(false);
ASSERT_IF_CALLED_WITH_PLAYER
return CBattleInfoEssentials::battleCanFlee(*player);
}
TStacks CPlayerBattleCallback::battleGetStacks(EStackOwnership whose /*= MINE_AND_ENEMY*/, bool onlyAlive /*= true*/) const
{
if(whose != MINE_AND_ENEMY)
{
ASSERT_IF_CALLED_WITH_PLAYER
}
return battleGetStacksIf([=](const CStack * s){
const bool ownerMatches = (whose == MINE_AND_ENEMY)
|| (whose == ONLY_MINE && s->owner == player)
|| (whose == ONLY_ENEMY && s->owner != player);
return ownerMatches && s->isValidTarget(!onlyAlive);
});
}
int CPlayerBattleCallback::battleGetSurrenderCost() const
{
RETURN_IF_NOT_BATTLE(-3)
ASSERT_IF_CALLED_WITH_PLAYER
return CBattleInfoCallback::battleGetSurrenderCost(*player);
}
const CGHeroInstance * CPlayerBattleCallback::battleGetMyHero() const
{
return CBattleInfoEssentials::battleGetFightingHero(battleGetMySide());
}
InfoAboutHero CPlayerBattleCallback::battleGetEnemyHero() const
{
return battleGetHeroInfo(!battleGetMySide());
}
BattleAttackInfo::BattleAttackInfo(const CStack *Attacker, const CStack *Defender, bool Shooting)
{
attacker = Attacker;
defender = Defender;
attackerBonuses = Attacker;
defenderBonuses = Defender;
attackerPosition = Attacker->position;
defenderPosition = Defender->position;
attackerCount = Attacker->count;
defenderCount = Defender->count;
shooting = Shooting;
chargedFields = 0;
luckyHit = false;
unluckyHit = false;
deathBlow = false;
ballistaDoubleDamage = false;
}
BattleAttackInfo BattleAttackInfo::reverse() const
{
BattleAttackInfo ret = *this;
std::swap(ret.attacker, ret.defender);
std::swap(ret.attackerBonuses, ret.defenderBonuses);
std::swap(ret.attackerPosition, ret.defenderPosition);
std::swap(ret.attackerCount, ret.defenderCount);
ret.shooting = false;
ret.chargedFields = 0;
ret.luckyHit = ret.ballistaDoubleDamage = ret.deathBlow = false;
return ret;
}

237
lib/CBattleCallback.h → lib/battle/CBattleInfoCallback.h
View File

@ -1,6 +1,3 @@
#pragma once
#include "BattleHex.h"
/*
* CBattleCallback.h, part of VCMI engine
*
@ -10,64 +7,19 @@
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "CCallbackBase.h"
#include "ReachabilityInfo.h"
#include "BattleAttackInfo.h"
class CGameState;
class CGTownInstance;
class CGHeroInstance;
class CStack;
class ISpellCaster;
class CSpell;
struct BattleInfo;
struct CObstacleInstance;
class IBonusBearer;
struct InfoAboutHero;
class CArmedInstance;
class CRandomGenerator;
namespace boost
{class shared_mutex;}
namespace BattleSide
{
enum {ATTACKER = 0, DEFENDER = 1};
}
typedef std::vector<const CStack*> TStacks;
typedef std::function<bool(const CStack *)> TStackFilter;
class CBattleInfoEssentials;
//Basic class for various callbacks (interfaces called by players to get info about game and so forth)
class DLL_LINKAGE CCallbackBase
{
const BattleInfo *battle; //battle to which the player is engaged, nullptr if none or not applicable
const BattleInfo * getBattle() const
{
return battle;
}
protected:
CGameState *gs;
boost::optional<PlayerColor> player; // not set gives access to all information, otherwise callback provides only information "visible" for player
CCallbackBase(CGameState *GS, boost::optional<PlayerColor> Player)
: battle(nullptr), gs(GS), player(Player)
{}
CCallbackBase()
: battle(nullptr), gs(nullptr)
{}
void setBattle(const BattleInfo *B);
bool duringBattle() const;
public:
boost::optional<PlayerColor> getPlayerID() const;
friend class CBattleInfoEssentials;
};
struct DLL_LINKAGE AttackableTiles
{
std::set<BattleHex> hostileCreaturePositions;
@ -78,170 +30,6 @@ struct DLL_LINKAGE AttackableTiles
}
};
//Accessibility is property of hex in battle. It doesn't depend on stack, side's perspective and so on.
namespace EAccessibility
{
enum EAccessibility
{
ACCESSIBLE,
ALIVE_STACK,
OBSTACLE,
DESTRUCTIBLE_WALL,
GATE, //sieges -> gate opens only for defender stacks
UNAVAILABLE, //indestructible wall parts, special battlefields (like boat-to-boat)
SIDE_COLUMN //used for first and last columns of hexes that are unavailable but wat machines can stand there
};
}
typedef std::array<EAccessibility::EAccessibility, GameConstants::BFIELD_SIZE> TAccessibilityArray;
struct DLL_LINKAGE AccessibilityInfo : TAccessibilityArray
{
bool occupiable(const CStack *stack, BattleHex tile) const;
bool accessible(BattleHex tile, const CStack *stack) const; //checks for both tiles if stack is double wide
bool accessible(BattleHex tile, bool doubleWide, bool attackerOwned) const; //checks for both tiles if stack is double wide
};
namespace BattlePerspective
{
enum BattlePerspective
{
INVALID = -2,
ALL_KNOWING = -1,
LEFT_SIDE,
RIGHT_SIDE
};
}
// Reachability info is result of BFS calculation. It's dependent on stack (it's owner, whether it's flying),
// startPosition and perpective.
struct DLL_LINKAGE ReachabilityInfo
{
typedef std::array<int, GameConstants::BFIELD_SIZE> TDistances;
typedef std::array<BattleHex, GameConstants::BFIELD_SIZE> TPredecessors;
enum { INFINITE_DIST = 1000000 };
struct DLL_LINKAGE Parameters
{
const CStack *stack; //stack for which calculation is mage => not required (kept for debugging mostly), following variables are enough
bool attackerOwned;
bool doubleWide;
bool flying;
std::vector<BattleHex> knownAccessible; //hexes that will be treated as accessible, even if they're occupied by stack (by default - tiles occupied by stack we do reachability for, so it doesn't block itself)
BattleHex startPosition; //assumed position of stack
BattlePerspective::BattlePerspective perspective; //some obstacles (eg. quicksands) may be invisible for some side
Parameters();
Parameters(const CStack *Stack);
};
Parameters params;
AccessibilityInfo accessibility;
TDistances distances;
TPredecessors predecessors;
ReachabilityInfo()
{
distances.fill(INFINITE_DIST);
predecessors.fill(BattleHex::INVALID);
}
bool isReachable(BattleHex hex) const
{
return distances[hex] < INFINITE_DIST;
}
};
class DLL_LINKAGE CBattleInfoEssentials : public virtual CCallbackBase
{
protected:
bool battleDoWeKnowAbout(ui8 side) const;
const IBonusBearer * getBattleNode() const;
public:
enum EStackOwnership
{
ONLY_MINE, ONLY_ENEMY, MINE_AND_ENEMY
};
BattlePerspective::BattlePerspective battleGetMySide() const;
ETerrainType battleTerrainType() const;
BFieldType battleGetBattlefieldType() const;
std::vector<std::shared_ptr<const CObstacleInstance> > battleGetAllObstacles(boost::optional<BattlePerspective::BattlePerspective> perspective = boost::none) const; //returns all obstacles on the battlefield
/** @brief Main method for getting battle stacks
*
* @param predicate Functor that shall return true for desired stack
* @return filtered stacks
*
*/
TStacks battleGetStacksIf(TStackFilter predicate) const;
bool battleHasNativeStack(ui8 side) const;
int battleGetMoatDmg() const; //what dmg unit will suffer if ending turn in the moat
const CGTownInstance * battleGetDefendedTown() const; //returns defended town if current battle is a siege, nullptr instead
const CStack *battleActiveStack() const;
si8 battleTacticDist() const; //returns tactic distance in current tactics phase; 0 if not in tactics phase
si8 battleGetTacticsSide() const; //returns which side is in tactics phase, undefined if none (?)
bool battleCanFlee(PlayerColor player) const;
bool battleCanSurrender(PlayerColor player) const;
si8 playerToSide(PlayerColor player) const;
bool playerHasAccessToHeroInfo(PlayerColor player, const CGHeroInstance * h) const;
ui8 battleGetSiegeLevel() const; //returns 0 when there is no siege, 1 if fort, 2 is citadel, 3 is castle
bool battleHasHero(ui8 side) const;
int battleCastSpells(ui8 side) const; //how many spells has given side cast
const CGHeroInstance * battleGetFightingHero(ui8 side) const; //depracated for players callback, easy to get wrong
const CArmedInstance * battleGetArmyObject(ui8 side) const;
InfoAboutHero battleGetHeroInfo(ui8 side) const;
// for determining state of a part of the wall; format: parameter [0] - keep, [1] - bottom tower, [2] - bottom wall,
// [3] - below gate, [4] - over gate, [5] - upper wall, [6] - uppert tower, [7] - gate; returned value: 1 - intact, 2 - damaged, 3 - destroyed; 0 - no battle
si8 battleGetWallState(int partOfWall) const;
EGateState battleGetGateState() const;
//helpers
///returns all stacks, alive or dead or undead or mechanical :)
TStacks battleGetAllStacks(bool includeTurrets = false) const;
///returns all alive stacks excluding turrets
TStacks battleAliveStacks() const;
///returns all alive stacks from particular side excluding turrets
TStacks battleAliveStacks(ui8 side) const;
const CStack * battleGetStackByID(int ID, bool onlyAlive = true) const; //returns stack info by given ID
bool battleIsObstacleVisibleForSide(const CObstacleInstance & coi, BattlePerspective::BattlePerspective side) const;
///returns player that controls given stack; mind control included
PlayerColor battleGetOwner(const CStack * stack) const;
///returns hero that controls given stack; nullptr if none; mind control included
const CGHeroInstance * battleGetOwnerHero(const CStack * stack) const;
///check that stacks are controlled by same|other player(s) depending on positiveness
///mind control included
bool battleMatchOwner(const CStack * attacker, const CStack * defender, const boost::logic::tribool positivness = false) const;
};
struct DLL_LINKAGE BattleAttackInfo
{
const IBonusBearer *attackerBonuses, *defenderBonuses;
const CStack *attacker, *defender;
BattleHex attackerPosition, defenderPosition;
int attackerCount, defenderCount;
bool shooting;
int chargedFields;
bool luckyHit;
bool unluckyHit;
bool deathBlow;
bool ballistaDoubleDamage;
BattleAttackInfo(const CStack *Attacker, const CStack *Defender, bool Shooting = false);
BattleAttackInfo reverse() const;
};
class DLL_LINKAGE CBattleInfoCallback : public virtual CBattleInfoEssentials
{
@ -299,10 +87,7 @@ public:
const CStack * getStackIf(std::function<bool(const CStack*)> pred) const;
si8 battleHasShootingPenalty(const CStack * stack, BattleHex destHex)
{
return battleHasDistancePenalty(stack, destHex) || battleHasWallPenalty(stack, destHex);
}
si8 battleHasShootingPenalty(const CStack * stack, BattleHex destHex);
si8 battleCanTeleportTo(const CStack * stack, BattleHex destHex, int telportLevel) const; //checks if teleportation of given stack to given position can take place
@ -327,15 +112,3 @@ protected:
ReachabilityInfo makeBFS(const CStack *stack) const; //uses default parameters -> stack position and owner's perspective
std::set<BattleHex> getStoppers(BattlePerspective::BattlePerspective whichSidePerspective) const; //get hexes with stopping obstacles (quicksands)
};
class DLL_LINKAGE CPlayerBattleCallback : public CBattleInfoCallback
{
public:
bool battleCanFlee() const; //returns true if caller can flee from the battle
TStacks battleGetStacks(EStackOwnership whose = MINE_AND_ENEMY, bool onlyAlive = true) const; //returns stacks on battlefield
int battleGetSurrenderCost() const; //returns cost of surrendering battle, -1 if surrendering is not possible
const CGHeroInstance * battleGetMyHero() const;
InfoAboutHero battleGetEnemyHero() const;
};

359
lib/battle/CBattleInfoEssentials.cpp Normal file
View File

@ -0,0 +1,359 @@
/*
* CBattleInfoEssentials.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "CBattleInfoEssentials.h"
#include "CStack.h"
#include "BattleInfo.h"
#include "NetPacks.h"
#include "mapObjects/CGTownInstance.h"
#define RETURN_IF_NOT_BATTLE(X) if(!duringBattle()) {logGlobal->errorStream() << __FUNCTION__ << " called when no battle!"; return X; }
ETerrainType CBattleInfoEssentials::battleTerrainType() const
{
RETURN_IF_NOT_BATTLE(ETerrainType::WRONG);
return getBattle()->terrainType;
}
BFieldType CBattleInfoEssentials::battleGetBattlefieldType() const
{
RETURN_IF_NOT_BATTLE(BFieldType::NONE);
return getBattle()->battlefieldType;
}
std::vector<std::shared_ptr<const CObstacleInstance> > CBattleInfoEssentials::battleGetAllObstacles(boost::optional<BattlePerspective::BattlePerspective> perspective /*= boost::none*/) const
{
std::vector<std::shared_ptr<const CObstacleInstance> > ret;
RETURN_IF_NOT_BATTLE(ret);
if(!perspective)
{
//if no particular perspective request, use default one
perspective = battleGetMySide();
}
else
{
if(!!player && *perspective != battleGetMySide())
{
logGlobal->errorStream() << "Unauthorized access attempt!";
assert(0); //I want to notice if that happens
//perspective = battleGetMySide();
}
}
for(auto oi : getBattle()->obstacles)
{
if(getBattle()->battleIsObstacleVisibleForSide(*oi, *perspective))
ret.push_back(oi);
}
return ret;
}
bool CBattleInfoEssentials::battleIsObstacleVisibleForSide(const CObstacleInstance & coi, BattlePerspective::BattlePerspective side) const
{
RETURN_IF_NOT_BATTLE(false);
return side == BattlePerspective::ALL_KNOWING || coi.visibleForSide(side, battleHasNativeStack(side));
}
bool CBattleInfoEssentials::battleHasNativeStack(ui8 side) const
{
RETURN_IF_NOT_BATTLE(false);
for(const CStack *s : battleGetAllStacks())
{
if(s->attackerOwned == !side && s->getCreature()->isItNativeTerrain(getBattle()->terrainType))
return true;
}
return false;
}
TStacks CBattleInfoEssentials::battleGetAllStacks(bool includeTurrets /*= false*/) const
{
return battleGetStacksIf([=](const CStack * s)
{
return !s->isGhost() && (includeTurrets || !s->isTurret());
});
}
TStacks CBattleInfoEssentials::battleGetStacksIf(TStackFilter predicate) const
{
TStacks ret;
RETURN_IF_NOT_BATTLE(ret);
vstd::copy_if(getBattle()->stacks, std::back_inserter(ret), predicate);
return ret;
}
TStacks CBattleInfoEssentials::battleAliveStacks() const
{
return battleGetStacksIf([](const CStack * s){
return s->isValidTarget(false);
});
}
TStacks CBattleInfoEssentials::battleAliveStacks(ui8 side) const
{
return battleGetStacksIf([=](const CStack * s){
return s->isValidTarget(false) && s->attackerOwned == !side;
});
}
int CBattleInfoEssentials::battleGetMoatDmg() const
{
RETURN_IF_NOT_BATTLE(0);
auto town = getBattle()->town;
if(!town)
return 0;
return town->town->moatDamage;
}
const CGTownInstance * CBattleInfoEssentials::battleGetDefendedTown() const
{
RETURN_IF_NOT_BATTLE(nullptr);
if(!getBattle() || getBattle()->town == nullptr)
return nullptr;
return getBattle()->town;
}
BattlePerspective::BattlePerspective CBattleInfoEssentials::battleGetMySide() const
{
RETURN_IF_NOT_BATTLE(BattlePerspective::INVALID);
if(!player || player.get().isSpectator())
return BattlePerspective::ALL_KNOWING;
if(*player == getBattle()->sides[0].color)
return BattlePerspective::LEFT_SIDE;
if(*player == getBattle()->sides[1].color)
return BattlePerspective::RIGHT_SIDE;
logGlobal->errorStream() << "Cannot find player " << *player << " in battle!";
return BattlePerspective::INVALID;
}
const CStack * CBattleInfoEssentials::battleActiveStack() const
{
RETURN_IF_NOT_BATTLE(nullptr);
return battleGetStackByID(getBattle()->activeStack);
}
const CStack* CBattleInfoEssentials::battleGetStackByID(int ID, bool onlyAlive) const
{
RETURN_IF_NOT_BATTLE(nullptr);
auto stacks = battleGetStacksIf([=](const CStack * s)
{
return s->ID == ID && (!onlyAlive || s->alive());
});
if(stacks.empty())
return nullptr;
else
return stacks[0];
}
bool CBattleInfoEssentials::battleDoWeKnowAbout(ui8 side) const
{
RETURN_IF_NOT_BATTLE(false);
auto p = battleGetMySide();
return p == BattlePerspective::ALL_KNOWING || p == side;
}
si8 CBattleInfoEssentials::battleTacticDist() const
{
RETURN_IF_NOT_BATTLE(0);
return getBattle()->tacticDistance;
}
si8 CBattleInfoEssentials::battleGetTacticsSide() const
{
RETURN_IF_NOT_BATTLE(-1);
return getBattle()->tacticsSide;
}
const CGHeroInstance * CBattleInfoEssentials::battleGetFightingHero(ui8 side) const
{
RETURN_IF_NOT_BATTLE(nullptr);
if(side > 1)
{
logGlobal->errorStream() << "FIXME: " << __FUNCTION__ << " wrong argument!";
return nullptr;
}
if(!battleDoWeKnowAbout(side))
{
logGlobal->errorStream() << "FIXME: " << __FUNCTION__ << " access check ";
return nullptr;
}
return getBattle()->sides[side].hero;
}
const CArmedInstance * CBattleInfoEssentials::battleGetArmyObject(ui8 side) const
{
RETURN_IF_NOT_BATTLE(nullptr);
if(side > 1)
{
logGlobal->errorStream() << "FIXME: " << __FUNCTION__ << " wrong argument!";
return nullptr;
}
if(!battleDoWeKnowAbout(side))
{
logGlobal->errorStream() << "FIXME: " << __FUNCTION__ << " access check ";
return nullptr;
}
return getBattle()->sides[side].armyObject;
}
InfoAboutHero CBattleInfoEssentials::battleGetHeroInfo( ui8 side ) const
{
auto hero = getBattle()->sides[side].hero;
if(!hero)
{
logGlobal->warnStream() << __FUNCTION__ << ": side " << (int)side << " does not have hero!";
return InfoAboutHero();
}
InfoAboutHero::EInfoLevel infoLevel = battleDoWeKnowAbout(side) ? InfoAboutHero::EInfoLevel::DETAILED : InfoAboutHero::EInfoLevel::BASIC;
return InfoAboutHero(hero, infoLevel);
}
int CBattleInfoEssentials::battleCastSpells(ui8 side) const
{
RETURN_IF_NOT_BATTLE(-1);
return getBattle()->sides[side].castSpellsCount;
}
const IBonusBearer * CBattleInfoEssentials::getBattleNode() const
{
return getBattle();
}
bool CBattleInfoEssentials::battleCanFlee(PlayerColor player) const
{
RETURN_IF_NOT_BATTLE(false);
const si8 mySide = playerToSide(player);
const CGHeroInstance *myHero = battleGetFightingHero(mySide);
//current player have no hero
if(!myHero)
return false;
//eg. one of heroes is wearing shakles of war
if(myHero->hasBonusOfType(Bonus::BATTLE_NO_FLEEING))
return false;
//we are besieged defender
if(mySide == BattleSide::DEFENDER && battleGetSiegeLevel())
{
auto town = battleGetDefendedTown();
if(!town->hasBuilt(BuildingID::ESCAPE_TUNNEL, ETownType::STRONGHOLD))
return false;
}
return true;
}
si8 CBattleInfoEssentials::playerToSide(PlayerColor player) const
{
RETURN_IF_NOT_BATTLE(-1);
int ret = vstd::find_pos_if(getBattle()->sides, [=](const SideInBattle &side){ return side.color == player; });
if(ret < 0)
logGlobal->warnStream() << "Cannot find side for player " << player;
return ret;
}
bool CBattleInfoEssentials::playerHasAccessToHeroInfo(PlayerColor player, const CGHeroInstance * h) const
{
RETURN_IF_NOT_BATTLE(false);
const si8 playerSide = playerToSide(player);
if (playerSide >= 0)
{
if (getBattle()->sides[!playerSide].hero == h)
return true;
}
return false;
}
ui8 CBattleInfoEssentials::battleGetSiegeLevel() const
{
RETURN_IF_NOT_BATTLE(0);
return getBattle()->town ? getBattle()->town->fortLevel() : CGTownInstance::NONE;
}
bool CBattleInfoEssentials::battleCanSurrender(PlayerColor player) const
{
RETURN_IF_NOT_BATTLE(false);
ui8 mySide = playerToSide(player);
bool iAmSiegeDefender = ( mySide == BattleSide::DEFENDER && battleGetSiegeLevel() );
//conditions like for fleeing (except escape tunnel presence) + enemy must have a hero
return battleCanFlee(player) && !iAmSiegeDefender && battleHasHero(!mySide);
}
bool CBattleInfoEssentials::battleHasHero(ui8 side) const
{
RETURN_IF_NOT_BATTLE(false);
assert(side < 2);
return getBattle()->sides[side].hero;
}
si8 CBattleInfoEssentials::battleGetWallState(int partOfWall) const
{
RETURN_IF_NOT_BATTLE(0);
if(getBattle()->town == nullptr || getBattle()->town->fortLevel() == CGTownInstance::NONE)
return EWallState::NONE;
assert(partOfWall >= 0 && partOfWall < EWallPart::PARTS_COUNT);
return getBattle()->si.wallState[partOfWall];
}
EGateState CBattleInfoEssentials::battleGetGateState() const
{
RETURN_IF_NOT_BATTLE(EGateState::NONE);
if(getBattle()->town == nullptr || getBattle()->town->fortLevel() == CGTownInstance::NONE)
return EGateState::NONE;
return getBattle()->si.gateState;
}
PlayerColor CBattleInfoEssentials::battleGetOwner(const CStack * stack) const
{
RETURN_IF_NOT_BATTLE(PlayerColor::CANNOT_DETERMINE);
if(stack->hasBonusOfType(Bonus::HYPNOTIZED))
return getBattle()->theOtherPlayer(stack->owner);
else
return stack->owner;
}
const CGHeroInstance * CBattleInfoEssentials::battleGetOwnerHero(const CStack * stack) const
{
RETURN_IF_NOT_BATTLE(nullptr);
return getBattle()->sides.at(playerToSide(battleGetOwner(stack))).hero;
}
bool CBattleInfoEssentials::battleMatchOwner(const CStack * attacker, const CStack * defender, const boost::logic::tribool positivness /* = false*/) const
{
RETURN_IF_NOT_BATTLE(false);
if(boost::logic::indeterminate(positivness))
return true;
else if(defender->owner != battleGetOwner(defender))
return true;//mind controlled unit is attackable for both sides
else
return (battleGetOwner(attacker) == battleGetOwner(defender)) == positivness;
}

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/*
* CBattleInfoEssentials.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "CCallbackBase.h"
class CGTownInstance;
class CGHeroInstance;
class CStack;
struct CObstacleInstance;
class IBonusBearer;
struct InfoAboutHero;
class CArmedInstance;
typedef std::vector<const CStack*> TStacks;
typedef std::function<bool(const CStack *)> TStackFilter;
namespace BattlePerspective
{
enum BattlePerspective
{
INVALID = -2,
ALL_KNOWING = -1,
LEFT_SIDE,
RIGHT_SIDE
};
}
namespace BattleSide
{
enum {ATTACKER = 0, DEFENDER = 1};
}
class DLL_LINKAGE CBattleInfoEssentials : public virtual CCallbackBase
{
protected:
bool battleDoWeKnowAbout(ui8 side) const;
const IBonusBearer * getBattleNode() const;
public:
enum EStackOwnership
{
ONLY_MINE, ONLY_ENEMY, MINE_AND_ENEMY
};
BattlePerspective::BattlePerspective battleGetMySide() const;
ETerrainType battleTerrainType() const;
BFieldType battleGetBattlefieldType() const;
std::vector<std::shared_ptr<const CObstacleInstance> > battleGetAllObstacles(boost::optional<BattlePerspective::BattlePerspective> perspective = boost::none) const; //returns all obstacles on the battlefield
/** @brief Main method for getting battle stacks
*
* @param predicate Functor that shall return true for desired stack
* @return filtered stacks
*
*/
TStacks battleGetStacksIf(TStackFilter predicate) const;
bool battleHasNativeStack(ui8 side) const;
int battleGetMoatDmg() const; //what dmg unit will suffer if ending turn in the moat
const CGTownInstance * battleGetDefendedTown() const; //returns defended town if current battle is a siege, nullptr instead
const CStack *battleActiveStack() const;
si8 battleTacticDist() const; //returns tactic distance in current tactics phase; 0 if not in tactics phase
si8 battleGetTacticsSide() const; //returns which side is in tactics phase, undefined if none (?)
bool battleCanFlee(PlayerColor player) const;
bool battleCanSurrender(PlayerColor player) const;
si8 playerToSide(PlayerColor player) const;
bool playerHasAccessToHeroInfo(PlayerColor player, const CGHeroInstance * h) const;
ui8 battleGetSiegeLevel() const; //returns 0 when there is no siege, 1 if fort, 2 is citadel, 3 is castle
bool battleHasHero(ui8 side) const;
int battleCastSpells(ui8 side) const; //how many spells has given side cast
const CGHeroInstance * battleGetFightingHero(ui8 side) const; //depracated for players callback, easy to get wrong
const CArmedInstance * battleGetArmyObject(ui8 side) const;
InfoAboutHero battleGetHeroInfo(ui8 side) const;
// for determining state of a part of the wall; format: parameter [0] - keep, [1] - bottom tower, [2] - bottom wall,
// [3] - below gate, [4] - over gate, [5] - upper wall, [6] - uppert tower, [7] - gate; returned value: 1 - intact, 2 - damaged, 3 - destroyed; 0 - no battle
si8 battleGetWallState(int partOfWall) const;
EGateState battleGetGateState() const;
//helpers
///returns all stacks, alive or dead or undead or mechanical :)
TStacks battleGetAllStacks(bool includeTurrets = false) const;
///returns all alive stacks excluding turrets
TStacks battleAliveStacks() const;
///returns all alive stacks from particular side excluding turrets
TStacks battleAliveStacks(ui8 side) const;
const CStack * battleGetStackByID(int ID, bool onlyAlive = true) const; //returns stack info by given ID
bool battleIsObstacleVisibleForSide(const CObstacleInstance & coi, BattlePerspective::BattlePerspective side) const;
///returns player that controls given stack; mind control included
PlayerColor battleGetOwner(const CStack * stack) const;
///returns hero that controls given stack; nullptr if none; mind control included
const CGHeroInstance * battleGetOwnerHero(const CStack * stack) const;
///check that stacks are controlled by same|other player(s) depending on positiveness
///mind control included
bool battleMatchOwner(const CStack * attacker, const CStack * defender, const boost::logic::tribool positivness = false) const;
};

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/*
* CCallbackBase.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "CCallbackBase.h"
#include "BattleInfo.h"
#include "CGameState.h"
bool CCallbackBase::duringBattle() const
{
return getBattle() != nullptr;
}
const BattleInfo *CCallbackBase::getBattle() const
{
return battle;
}
CCallbackBase::CCallbackBase(CGameState * GS, boost::optional<PlayerColor> Player)
: battle(nullptr), gs(GS), player(Player)
{}
CCallbackBase::CCallbackBase()
: battle(nullptr), gs(nullptr)
{}
void CCallbackBase::setBattle(const BattleInfo *B)
{
battle = B;
}
boost::optional<PlayerColor> CCallbackBase::getPlayerID() const
{
return player;
}

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/*
* CCallbackBase.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "GameConstants.h"
class CGameState;
struct BattleInfo;
class CBattleInfoEssentials;
//Basic class for various callbacks (interfaces called by players to get info about game and so forth)
class DLL_LINKAGE CCallbackBase
{
const BattleInfo *battle; //battle to which the player is engaged, nullptr if none or not applicable
const BattleInfo * getBattle() const;
protected:
CGameState *gs;
boost::optional<PlayerColor> player; // not set gives access to all information, otherwise callback provides only information "visible" for player
CCallbackBase(CGameState *GS, boost::optional<PlayerColor> Player);
CCallbackBase();
void setBattle(const BattleInfo *B);
bool duringBattle() const;
public:
boost::optional<PlayerColor> getPlayerID() const;
friend class CBattleInfoEssentials;
};

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/*
* CPlayerBattleCallback.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "CPlayerBattleCallback.h"
#include "CStack.h"
#include "CGameState.h"
#define RETURN_IF_NOT_BATTLE(X) if(!duringBattle()) {logGlobal->errorStream() << __FUNCTION__ << " called when no battle!"; return X; }
bool CPlayerBattleCallback::battleCanFlee() const
{
RETURN_IF_NOT_BATTLE(false);
ASSERT_IF_CALLED_WITH_PLAYER
return CBattleInfoEssentials::battleCanFlee(*player);
}
TStacks CPlayerBattleCallback::battleGetStacks(EStackOwnership whose /*= MINE_AND_ENEMY*/, bool onlyAlive /*= true*/) const
{
if(whose != MINE_AND_ENEMY)
{
ASSERT_IF_CALLED_WITH_PLAYER
}
return battleGetStacksIf([=](const CStack * s){
const bool ownerMatches = (whose == MINE_AND_ENEMY)
|| (whose == ONLY_MINE && s->owner == player)
|| (whose == ONLY_ENEMY && s->owner != player);
return ownerMatches && s->isValidTarget(!onlyAlive);
});
}
int CPlayerBattleCallback::battleGetSurrenderCost() const
{
RETURN_IF_NOT_BATTLE(-3)
ASSERT_IF_CALLED_WITH_PLAYER
return CBattleInfoCallback::battleGetSurrenderCost(*player);
}
const CGHeroInstance * CPlayerBattleCallback::battleGetMyHero() const
{
return CBattleInfoEssentials::battleGetFightingHero(battleGetMySide());
}
InfoAboutHero CPlayerBattleCallback::battleGetEnemyHero() const
{
return battleGetHeroInfo(!battleGetMySide());
}

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/*
* CPlayerBattleCallback.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "CBattleInfoCallback.h"
class CGHeroInstance;
class DLL_LINKAGE CPlayerBattleCallback : public CBattleInfoCallback
{
public:
bool battleCanFlee() const; //returns true if caller can flee from the battle
TStacks battleGetStacks(EStackOwnership whose = MINE_AND_ENEMY, bool onlyAlive = true) const; //returns stacks on battlefield
int battleGetSurrenderCost() const; //returns cost of surrendering battle, -1 if surrendering is not possible
const CGHeroInstance * battleGetMyHero() const;
InfoAboutHero battleGetEnemyHero() const;
};

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/*
* ReachabilityInfo.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "ReachabilityInfo.h"
#include "CStack.h"
ReachabilityInfo::Parameters::Parameters()
{
stack = nullptr;
perspective = BattlePerspective::ALL_KNOWING;
attackerOwned = doubleWide = flying = false;
}
ReachabilityInfo::Parameters::Parameters(const CStack *Stack)
{
stack = Stack;
perspective = (BattlePerspective::BattlePerspective)(!Stack->attackerOwned);
startPosition = Stack->position;
doubleWide = stack->doubleWide();
attackerOwned = stack->attackerOwned;
flying = stack->hasBonusOfType(Bonus::FLYING);
knownAccessible = stack->getHexes();
}
ReachabilityInfo::ReachabilityInfo()
{
distances.fill(INFINITE_DIST);
predecessors.fill(BattleHex::INVALID);
}
bool ReachabilityInfo::isReachable(BattleHex hex) const
{
return distances[hex] < INFINITE_DIST;
}

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/*
* ReachabilityInfo.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "BattleHex.h"
#include "CBattleInfoEssentials.h"
#include "AccessibilityInfo.h"
class CStack;
// Reachability info is result of BFS calculation. It's dependent on stack (it's owner, whether it's flying),
// startPosition and perpective.
struct DLL_LINKAGE ReachabilityInfo
{
typedef std::array<int, GameConstants::BFIELD_SIZE> TDistances;
typedef std::array<BattleHex, GameConstants::BFIELD_SIZE> TPredecessors;
enum { INFINITE_DIST = 1000000 };
struct DLL_LINKAGE Parameters
{
const CStack *stack; //stack for which calculation is mage => not required (kept for debugging mostly), following variables are enough
bool attackerOwned;
bool doubleWide;
bool flying;
std::vector<BattleHex> knownAccessible; //hexes that will be treated as accessible, even if they're occupied by stack (by default - tiles occupied by stack we do reachability for, so it doesn't block itself)
BattleHex startPosition; //assumed position of stack
BattlePerspective::BattlePerspective perspective; //some obstacles (eg. quicksands) may be invisible for some side
Parameters();
Parameters(const CStack *Stack);
};
Parameters params;
AccessibilityInfo accessibility;
TDistances distances;
TPredecessors predecessors;
ReachabilityInfo();
bool isReachable(BattleHex hex) const;
};

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#include "../CStack.h"
#include "../BattleInfo.h"
#include "../CBattleCallback.h"
#include "../battle/CBattleInfoCallback.h"
#include "../CGameState.h" //todo: remove
#include "../NetPacks.h" //todo: remove