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vcmi/lib/CBattleCallback.cpp

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#include "StdInc.h"
#include "CBattleCallback.h"
#include "BattleState.h"
#include "CGameState.h"
#include "NetPacks.h"
#include "spells/CSpellHandler.h"
#include "VCMI_Lib.h"
#include "CTownHandler.h"
#include "mapObjects/CGTownInstance.h"
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/*
* CBattleCallback.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
*
*/
#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)
{
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);
}
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static BattleHex lineToWallHex(int line) //returns hex with wall in given line (y coordinate)
{
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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(62, 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(78, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(112, EWallPart::INDESTRUCTIBLE_PART),
std::make_pair(147, 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!
}
}
using namespace SiegeStuffThatShouldBeMovedToHandlers;
boost::shared_mutex& CCallbackBase::getGsMutex()
{
return *gs->mx;
}
bool CCallbackBase::duringBattle() const
{
return getBattle() != nullptr;
}
void CCallbackBase::setBattle(const BattleInfo *B)
{
battle = B;
}
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boost::optional<PlayerColor> CCallbackBase::getPlayerID() const
{
return player;
}
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ETerrainType CBattleInfoEssentials::battleTerrainType() const
{
RETURN_IF_NOT_BATTLE(ETerrainType::WRONG);
return getBattle()->terrainType;
}
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BFieldType CBattleInfoEssentials::battleGetBattlefieldType() const
{
RETURN_IF_NOT_BATTLE(BFieldType::NONE);
return getBattle()->battlefieldType;
}
std::vector<shared_ptr<const CObstacleInstance> > CBattleInfoEssentials::battleGetAllObstacles(boost::optional<BattlePerspective::BattlePerspective> perspective /*= boost::none*/) const
{
std::vector<shared_ptr<const CObstacleInstance> > ret;
RETURN_IF_NOT_BATTLE(ret);
if(!perspective)
{
//if no particular perspective request, use default one
perspective = battleGetMySide();
}
else
{
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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 true;},includeTurrets);
}
TStacks CBattleInfoEssentials::battleGetStacksIf(TStackFilter predicate, bool includeTurrets /*= false*/) const
{
TStacks ret;
RETURN_IF_NOT_BATTLE(ret);
vstd::copy_if(getBattle()->stacks, std::back_inserter(ret), [=](const CStack * s){
return predicate(s) && (includeTurrets || !(s->type->idNumber == CreatureID::ARROW_TOWERS));
});
return ret;
}
TStacks CBattleInfoEssentials::battleAliveStacks() const
{
return battleGetStacksIf([](const CStack * s){
return s->alive();
});
}
TStacks CBattleInfoEssentials::battleAliveStacks(ui8 side) const
{
return battleGetStacksIf([=](const CStack * s){
return s->alive() && 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);
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if(!player)
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);
for(auto s : battleGetAllStacks(true))
if(s->ID == ID && (!onlyAlive || s->alive()))
return s;
return nullptr;
}
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();
}
return InfoAboutHero(hero, battleDoWeKnowAbout(side));
}
int CBattleInfoEssentials::battleCastSpells(ui8 side) const
{
RETURN_IF_NOT_BATTLE(-1);
return getBattle()->sides[side].castSpellsCount;
}
const IBonusBearer * CBattleInfoEssentials::getBattleNode() const
{
return getBattle();
}
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ESpellCastProblem::ESpellCastProblem CBattleInfoCallback::battleCanCastSpell(PlayerColor player, ECastingMode::ECastingMode mode) const
{
RETURN_IF_NOT_BATTLE(ESpellCastProblem::INVALID);
const ui8 side = playerToSide(player);
if(!battleDoWeKnowAbout(side))
{
logGlobal->warnStream() << "You can't check if enemy can cast given spell!";
return ESpellCastProblem::INVALID;
}
switch (mode)
{
case ECastingMode::HERO_CASTING:
{
if(battleTacticDist())
return ESpellCastProblem::ONGOING_TACTIC_PHASE;
if(battleCastSpells(side) > 0)
return ESpellCastProblem::ALREADY_CASTED_THIS_TURN;
auto hero = battleGetFightingHero(side);
if(!hero)
return ESpellCastProblem::NO_HERO_TO_CAST_SPELL;
if(!hero->getArt(ArtifactPosition::SPELLBOOK))
return ESpellCastProblem::NO_SPELLBOOK;
if(hero->hasBonusOfType(Bonus::BLOCK_ALL_MAGIC))
return ESpellCastProblem::MAGIC_IS_BLOCKED;
}
break;
default:
break;
}
return ESpellCastProblem::OK;
}
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bool CBattleInfoEssentials::battleCanFlee(PlayerColor player) const
{
RETURN_IF_NOT_BATTLE(false);
ui8 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;
}
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ui8 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;
}
ui8 CBattleInfoEssentials::battleGetSiegeLevel() const
{
RETURN_IF_NOT_BATTLE(0);
return getBattle()->town ? getBattle()->town->fortLevel() : CGTownInstance::NONE;
}
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bool CBattleInfoEssentials::battleCanSurrender(PlayerColor player) const
{
RETURN_IF_NOT_BATTLE(false);
//conditions like for fleeing + enemy must have a hero
return battleCanFlee(player) && battleHasHero(!playerToSide(player));
}
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];
}
si8 CBattleInfoCallback::battleHasWallPenalty( const CStack * stack, BattleHex destHex ) const
{
return battleHasWallPenalty(stack, stack->position, destHex);
}
si8 CBattleInfoCallback::battleHasWallPenalty(const IBonusBearer *bonusBearer, BattleHex shooterPosition, BattleHex destHex) const
{
RETURN_IF_NOT_BATTLE(false);
if (!battleGetSiegeLevel() || bonusBearer->hasBonusOfType(Bonus::NO_WALL_PENALTY))
return false;
const int wallInStackLine = lineToWallHex(shooterPosition.getY());
const int wallInDestLine = lineToWallHex(destHex.getY());
const bool stackLeft = shooterPosition < wallInStackLine;
const bool destRight = destHex > wallInDestLine;
if (stackLeft && destRight) //shooting from outside to inside
{
int row = (shooterPosition + destHex) / (2 * GameConstants::BFIELD_WIDTH);
if (shooterPosition > destHex && ((destHex % GameConstants::BFIELD_WIDTH - shooterPosition % GameConstants::BFIELD_WIDTH) < 2)) //shooting up high
row -= 2;
const int wallPos = lineToWallHex(row);
if (!isWallPartPotentiallyAttackable(battleHexToWallPart(wallPos))) return true;
}
return false;
}
si8 CBattleInfoCallback::battleCanTeleportTo(const CStack * stack, BattleHex destHex, int telportLevel) const
{
RETURN_IF_NOT_BATTLE(false);
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if (!getAccesibility(stack).accessible(destHex, stack))
return false;
if (battleGetSiegeLevel() && telportLevel < 2) //check for wall
return sameSideOfWall(stack->position, destHex);
return true;
}
std::set<BattleHex> CBattleInfoCallback::battleGetAttackedHexes(const CStack* attacker, BattleHex destinationTile, BattleHex attackerPos /*= BattleHex::INVALID*/) const
{
std::set<BattleHex> attackedHexes;
RETURN_IF_NOT_BATTLE(attackedHexes);
AttackableTiles at = getPotentiallyAttackableHexes(attacker, destinationTile, attackerPos);
for (BattleHex tile : at.hostileCreaturePositions)
{
const CStack * st = battleGetStackByPos(tile, true);
if(st && st->owner != attacker->owner) //only hostile stacks - does it work well with Berserk?
{
attackedHexes.insert(tile);
}
}
for (BattleHex tile : at.friendlyCreaturePositions)
{
if(battleGetStackByPos(tile, true)) //friendly stacks can also be damaged by Dragon Breath
{
attackedHexes.insert(tile);
}
}
return attackedHexes;
}
SpellID CBattleInfoCallback::battleGetRandomStackSpell(const CStack * stack, ERandomSpell mode) const
{
switch (mode)
{
case RANDOM_GENIE:
return getRandomBeneficialSpell(stack); //target
break;
case RANDOM_AIMED:
return getRandomCastedSpell(stack); //caster
break;
default:
logGlobal->errorStream() << "Incorrect mode of battleGetRandomSpell (" << mode <<")";
return SpellID::NONE;
}
}
const CStack* CBattleInfoCallback::battleGetStackByPos(BattleHex pos, bool onlyAlive) const
{
RETURN_IF_NOT_BATTLE(nullptr);
for(auto s : battleGetAllStacks(true))
if(vstd::contains(s->getHexes(), pos) && (!onlyAlive || s->alive()))
return s;
return nullptr;
}
void CBattleInfoCallback::battleGetStackQueue(std::vector<const CStack *> &out, const int howMany, const int turn /*= 0*/, int lastMoved /*= -1*/) const
{
RETURN_IF_NOT_BATTLE();
//let's define a huge lambda
auto takeStack = [&](std::vector<const CStack *> &st) -> const CStack*
{
const CStack *ret = nullptr;
unsigned i, //fastest stack
j=0; //fastest stack of the other side
for(i = 0; i < st.size(); i++)
if(st[i])
break;
//no stacks left
if(i == st.size())
return nullptr;
const CStack *fastest = st[i], *other = nullptr;
int bestSpeed = fastest->Speed(turn);
//FIXME: comparison between bool and integer. Logic does not makes sense either
if(fastest->attackerOwned != lastMoved)
{
ret = fastest;
}
else
{
for(j = i + 1; j < st.size(); j++)
{
if(!st[j]) continue;
if(st[j]->attackerOwned != lastMoved || st[j]->Speed(turn) != bestSpeed)
break;
}
if(j >= st.size())
{
ret = fastest;
}
else
{
other = st[j];
if(other->Speed(turn) != bestSpeed)
ret = fastest;
else
ret = other;
}
}
assert(ret);
if(ret == fastest)
st[i] = nullptr;
else
st[j] = nullptr;
lastMoved = ret->attackerOwned;
return ret;
};
//We'll split creatures with remaining movement to 4 buckets
// [0] - turrets/catapult,
// [1] - normal (unmoved) creatures, other war machines,
// [2] - waited cres that had morale,
// [3] - rest of waited cres
std::vector<const CStack *> phase[4];
int toMove = 0; //how many stacks still has move
const CStack *active = battleActiveStack();
//active stack hasn't taken any action yet - must be placed at the beginning of queue, no matter what
if(!turn && active && active->willMove() && !active->waited())
{
out.push_back(active);
if(out.size() == howMany)
return;
}
auto allStacks = battleGetAllStacks(true);
if(!vstd::contains_if(allStacks, [](const CStack *stack) { return stack->willMove(100000); })) //little evil, but 100000 should be enough for all effects to disappear
{
//No stack will be able to move, battle is over.
out.clear();
return;
}
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
{
continue;
}
int p = -1; //in which phase this tack will move?
if(turn <= 0 && s->waited()) //consider waiting state only for ongoing round
{
if(vstd::contains(s->state, EBattleStackState::HAD_MORALE))
p = 2;
else
p = 3;
}
else if(s->getCreature()->idNumber == CreatureID::CATAPULT || s->getCreature()->idNumber == CreatureID::ARROW_TOWERS) //catapult and turrets are first
{
p = 0;
}
else
{
p = 1;
}
phase[p].push_back(s);
toMove++;
}
for(int i = 0; i < 4; i++)
boost::sort(phase[i], CMP_stack(i, turn > 0 ? turn : 0));
for(size_t i = 0; i < phase[0].size() && i < howMany; i++)
out.push_back(phase[0][i]);
if(out.size() == howMany)
return;
if(lastMoved == -1)
{
if(active)
{
//FIXME: both branches contain same code!!!
if(out.size() && out.front() == active)
lastMoved = active->attackerOwned;
else
lastMoved = active->attackerOwned;
}
else
{
lastMoved = 0;
}
}
int pi = 1;
while(out.size() < howMany)
{
const CStack *hlp = takeStack(phase[pi]);
if(!hlp)
{
pi++;
if(pi > 3)
{
//if(turn != 2)
battleGetStackQueue(out, howMany, turn + 1, lastMoved);
return;
}
}
else
{
out.push_back(hlp);
}
}
}
void CBattleInfoCallback::battleGetStackCountOutsideHexes(bool *ac) const
{
RETURN_IF_NOT_BATTLE();
auto accessibility = getAccesibility();
for(int i = 0; i < accessibility.size(); i++)
ac[i] = (accessibility[i] == EAccessibility::ACCESSIBLE);
}
std::vector<BattleHex> CBattleInfoCallback::battleGetAvailableHexes(const CStack * stack, bool addOccupiable, std::vector<BattleHex> * attackable) const
{
std::vector<BattleHex> ret;
RETURN_IF_NOT_BATTLE(ret);
if(!stack->position.isValid()) //turrets
return ret;
auto reachability = getReachability(stack);
for (int i = 0; i < GameConstants::BFIELD_SIZE; ++i)
{
// If obstacles or other stacks makes movement impossible, it can't be helped.
if(!reachability.isReachable(i))
continue;
if(battleTacticDist() && battleGetTacticsSide() == !stack->attackerOwned)
{
//Stack has to perform tactic-phase movement -> can enter any reachable tile within given range
if(!isInTacticRange(i))
continue;
}
else
{
//Not tactics phase -> destination must be reachable and within stack range.
if(reachability.distances[i] > stack->Speed(0, true))
continue;
}
ret.push_back(i);
if(addOccupiable && stack->doubleWide())
{
//If two-hex stack can stand on hex i then obviously it can occupy its second hex from that position
ret.push_back(stack->occupiedHex(i));
}
}
if(attackable)
{
auto meleeAttackable = [&](BattleHex hex) -> bool
{
// 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 availableNeighbor != ret.end();
};
for(const CStack * otherSt : battleAliveStacks(stack->attackerOwned))
{
if(!otherSt->isValidTarget(false))
continue;
std::vector<BattleHex> occupied = otherSt->getHexes();
if(battleCanShoot(stack, otherSt->position))
{
attackable->insert(attackable->end(), occupied.begin(), occupied.end());
continue;
}
for(BattleHex he : occupied)
{
if(meleeAttackable(he))
attackable->push_back(he);
}
}
}
//adding occupiable likely adds duplicates to ret -> clean it up
boost::sort(ret);
ret.erase(boost::unique(ret).end(), ret.end());
return ret;
}
bool CBattleInfoCallback::battleCanAttack(const CStack * stack, const CStack * target, BattleHex dest) const
{
RETURN_IF_NOT_BATTLE(false);
if(battleTacticDist())
return false;
if (!stack || !target)
return false;
if (stack->owner == target->owner)
return false;
auto &id = stack->getCreature()->idNumber;
if (id == CreatureID::FIRST_AID_TENT || id == CreatureID::CATAPULT)
return false;
if (!target->alive())
return false;
return true;
}
bool CBattleInfoCallback::battleCanShoot(const CStack * stack, BattleHex dest) const
{
RETURN_IF_NOT_BATTLE(false);
if(battleTacticDist()) //no shooting during tactics
return false;
const CStack *dst = battleGetStackByPos(dest);
if(!stack || !dst)
return false;
if(stack->hasBonusOfType(Bonus::FORGETFULL)) //forgetfulness
return false;
if(stack->getCreature()->idNumber == CreatureID::CATAPULT && dst) //catapult cannot attack creatures
return false;
//const CGHeroInstance * stackHero = battleGetOwner(stack);
if(stack->hasBonusOfType(Bonus::SHOOTER)//it's shooter
&& stack->owner != dst->owner
&& dst->alive()
&& (!battleIsStackBlocked(stack) || stack->hasBonusOfType(Bonus::FREE_SHOOTING))
&& stack->shots
)
return true;
return false;
}
TDmgRange CBattleInfoCallback::calculateDmgRange(const CStack* attacker, const CStack* defender, bool shooting,
ui8 charge, bool lucky, bool unlucky, bool deathBlow, bool ballistaDoubleDmg) const
{
return calculateDmgRange(attacker, defender, attacker->count, shooting, charge, lucky, unlucky, deathBlow, ballistaDoubleDmg);
}
TDmgRange CBattleInfoCallback::calculateDmgRange(const BattleAttackInfo &info) const
{
auto battleBonusValue = [&](const IBonusBearer * bearer, CSelector selector) -> int
{
auto noLimit = Selector::effectRange(Bonus::NO_LIMIT);
auto limitMatches = info.shooting
? 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;
const CCreature *attackerType = info.attacker->getCreature(),
*defenderType = info.defender->getCreature();
if(attackerType->idNumber == CreatureID::ARROW_TOWERS)
{
SiegeStuffThatShouldBeMovedToHandlers::retreiveTurretDamageRange(battleGetDefendedTown(), info.attacker, minDmg, maxDmg);
}
if(info.attackerBonuses->hasBonusOfType(Bonus::SIEGE_WEAPON) && attackerType->idNumber != CreatureID::ARROW_TOWERS) //any siege weapon, but only ballista can attack (second condition - not arrow turret)
{ //minDmg and maxDmg are multiplied by hero attack + 1
auto retreiveHeroPrimSkill = [&](int skill) -> int
{
const Bonus *b = info.attackerBonuses->getBonus(Selector::sourceTypeSel(Bonus::HERO_BASE_SKILL).And(Selector::typeSubtype(Bonus::PRIMARY_SKILL, skill)));
return b ? b->val : 0; //if there is no hero or no info on his primary skill, return 0
};
minDmg *= retreiveHeroPrimSkill(PrimarySkill::ATTACK) + 1;
maxDmg *= retreiveHeroPrimSkill(PrimarySkill::ATTACK) + 1;
}
int attackDefenceDifference = 0;
double multAttackReduction = (100 - battleBonusValue (info.attackerBonuses, Selector::type(Bonus::GENERAL_ATTACK_REDUCTION))) / 100.0;
attackDefenceDifference += battleBonusValue (info.attackerBonuses, Selector::typeSubtype(Bonus::PRIMARY_SKILL, PrimarySkill::ATTACK)) * multAttackReduction;
double multDefenceReduction = (100 - battleBonusValue (info.attackerBonuses, Selector::type(Bonus::ENEMY_DEFENCE_REDUCTION))) / 100.0;
attackDefenceDifference -= info.defenderBonuses->Defense() * multDefenceReduction;
if(const Bonus *slayerEffect = info.attackerBonuses->getEffect(SpellID::SLAYER)) //slayer handling //TODO: apply only ONLY_MELEE_FIGHT / DISTANCE_FIGHT?
{
std::vector<int> affectedIds;
int spLevel = slayerEffect->val;
for(int g = 0; g < VLC->creh->creatures.size(); ++g)
{
for(const 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 +
{
affectedIds.push_back(g);
break;
}
}
}
for(auto & affectedId : affectedIds)
{
if(defenderType->idNumber == affectedId)
{
attackDefenceDifference += SpellID(SpellID::SLAYER).toSpell()->getPower(spLevel);
break;
}
}
}
//bonus from attack/defense skills
if(attackDefenceDifference < 0) //decreasing dmg
{
const double dec = std::min(0.025 * (-attackDefenceDifference), 0.7);
multBonus *= 1.0 - dec;
}
else //increasing dmg
{
const double inc = std::min(0.05 * attackDefenceDifference, 4.0);
additiveBonus += inc;
}
//applying jousting bonus
if( info.attackerBonuses->hasBonusOfType(Bonus::JOUSTING) && !info.defenderBonuses->hasBonusOfType(Bonus::CHARGE_IMMUNITY) )
additiveBonus += info.chargedFields * 0.05;
//handling secondary abilities and artifacts giving premies to them
if(info.shooting)
additiveBonus += info.attackerBonuses->valOfBonuses(Bonus::SECONDARY_SKILL_PREMY, SecondarySkill::ARCHERY) / 100.0;
else
additiveBonus += info.attackerBonuses->valOfBonuses(Bonus::SECONDARY_SKILL_PREMY, SecondarySkill::OFFENCE) / 100.0;
if(info.defenderBonuses)
multBonus *= (std::max(0, 100 - info.defenderBonuses->valOfBonuses(Bonus::SECONDARY_SKILL_PREMY, SecondarySkill::ARMORER))) / 100.0;
//handling hate effect
additiveBonus += info.attackerBonuses->valOfBonuses(Bonus::HATE, defenderType->idNumber.toEnum()) / 100.;
//luck bonus
if (info.luckyHit)
{
additiveBonus += 1.0;
}
//unlucky hit, used only if negative luck is enabled
if (info.unluckyHit)
{
additiveBonus -= 0.5; // FIXME: how bad (and luck in general) should work with following bonuses?
}
//ballista double dmg
if(info.ballistaDoubleDamage)
{
additiveBonus += 1.0;
}
if (info.deathBlow) //Dread Knight and many WoGified creatures
{
additiveBonus += 1.0;
}
//handling spell effects
if(!info.shooting) //eg. shield
{
multBonus *= (100 - info.defenderBonuses->valOfBonuses(Bonus::GENERAL_DAMAGE_REDUCTION, 0)) / 100.0;
}
else if(info.shooting) //eg. air shield
{
multBonus *= (100 - info.defenderBonuses->valOfBonuses(Bonus::GENERAL_DAMAGE_REDUCTION, 1)) / 100.0;
}
TBonusListPtr curseEffects = info.attackerBonuses->getBonuses(Selector::type(Bonus::ALWAYS_MINIMUM_DAMAGE));
TBonusListPtr blessEffects = info.attackerBonuses->getBonuses(Selector::type(Bonus::ALWAYS_MAXIMUM_DAMAGE));
int curseBlessAdditiveModifier = blessEffects->totalValue() - curseEffects->totalValue();
double curseMultiplicativePenalty = curseEffects->size() ? (*std::max_element(curseEffects->begin(), curseEffects->end(), &Bonus::compareByAdditionalInfo))->additionalInfo : 0;
if(curseMultiplicativePenalty) //curse handling (partial, the rest is below)
{
multBonus *= 1.0 - curseMultiplicativePenalty/100;
}
auto isAdvancedAirShield = [](const Bonus *bonus)
{
return bonus->source == Bonus::SPELL_EFFECT
&& bonus->sid == SpellID::AIR_SHIELD
&& bonus->val >= SecSkillLevel::ADVANCED;
};
//wall / distance penalty + advanced air shield
const bool distPenalty = !info.attackerBonuses->hasBonusOfType(Bonus::NO_DISTANCE_PENALTY) && battleHasDistancePenalty(info.attackerBonuses, info.attackerPosition, info.defenderPosition);
const bool obstaclePenalty = battleHasWallPenalty(info.attackerBonuses, info.attackerPosition, info.defenderPosition);
if (info.shooting)
{
if (distPenalty || info.defenderBonuses->hasBonus(isAdvancedAirShield))
{
multBonus *= 0.5;
}
if (obstaclePenalty)
{
multBonus *= 0.5; //cumulative
}
}
if(!info.shooting && info.attackerBonuses->hasBonusOfType(Bonus::SHOOTER) && !info.attackerBonuses->hasBonusOfType(Bonus::NO_MELEE_PENALTY))
{
multBonus *= 0.5;
}
// TODO attack on petrified unit 50%
// psychic elementals versus mind immune units 50%
// blinded unit retaliates
minDmg *= additiveBonus * multBonus;
maxDmg *= additiveBonus * multBonus;
TDmgRange returnedVal;
if(curseEffects->size()) //curse handling (rest)
{
minDmg += curseBlessAdditiveModifier;
returnedVal = std::make_pair(int(minDmg), int(minDmg));
}
else if(blessEffects->size()) //bless handling
{
maxDmg += curseBlessAdditiveModifier;
returnedVal = std::make_pair(int(maxDmg), int(maxDmg));
}
else
{
returnedVal = std::make_pair(int(minDmg), int(maxDmg));
}
//damage cannot be less than 1
vstd::amax(returnedVal.first, 1);
vstd::amax(returnedVal.second, 1);
return returnedVal;
}
TDmgRange CBattleInfoCallback::calculateDmgRange( const CStack* attacker, const CStack* defender, TQuantity attackerCount,
bool shooting, ui8 charge, bool lucky, bool unlucky, bool deathBlow, bool ballistaDoubleDmg ) const
{
BattleAttackInfo bai(attacker, defender, shooting);
bai.attackerCount = attackerCount;
bai.chargedFields = charge;
bai.luckyHit = lucky;
bai.unluckyHit = unlucky;
bai.deathBlow = deathBlow;
bai.ballistaDoubleDamage = ballistaDoubleDmg;
return calculateDmgRange(bai);
}
TDmgRange CBattleInfoCallback::battleEstimateDamage(const CStack * attacker, const CStack * defender, TDmgRange * retaliationDmg) const
{
RETURN_IF_NOT_BATTLE(std::make_pair(0, 0));
const bool shooting = battleCanShoot(attacker, defender->position);
const BattleAttackInfo bai(attacker, defender, shooting);
return battleEstimateDamage(bai, retaliationDmg);
}
std::pair<ui32, ui32> CBattleInfoCallback::battleEstimateDamage(const BattleAttackInfo &bai, std::pair<ui32, ui32> * retaliationDmg /*= nullptr*/) const
{
RETURN_IF_NOT_BATTLE(std::make_pair(0, 0));
//const bool shooting = battleCanShoot(bai.attacker, bai.defenderPosition); //TODO handle bonus bearer
//const ui8 mySide = !attacker->attackerOwned;
TDmgRange ret = calculateDmgRange(bai);
if(retaliationDmg)
{
if(bai.shooting)
{
retaliationDmg->first = retaliationDmg->second = 0;
}
else
{
ui32 TDmgRange::* pairElems[] = {&TDmgRange::first, &TDmgRange::second};
for (int i=0; i<2; ++i)
{
BattleStackAttacked bsa;
bsa.damageAmount = ret.*pairElems[i];
bai.defender->prepareAttacked(bsa, gs->getRandomGenerator(), bai.defenderCount);
auto retaliationAttack = bai.reverse();
retaliationAttack.attackerCount = bsa.newAmount;
retaliationDmg->*pairElems[!i] = calculateDmgRange(retaliationAttack).*pairElems[!i];
}
}
}
return ret;
}
shared_ptr<const CObstacleInstance> CBattleInfoCallback::battleGetObstacleOnPos(BattleHex tile, bool onlyBlocking /*= true*/) const
{
RETURN_IF_NOT_BATTLE(shared_ptr<const CObstacleInstance>());
for(auto &obs : battleGetAllObstacles())
{
if(vstd::contains(obs->getBlockedTiles(), tile)
|| (!onlyBlocking && vstd::contains(obs->getAffectedTiles(), tile)))
{
return obs;
}
}
return shared_ptr<const CObstacleInstance>();
}
AccessibilityInfo CBattleInfoCallback::getAccesibility() const
{
AccessibilityInfo ret;
ret.fill(EAccessibility::ACCESSIBLE);
//removing accessibility for side columns of hexes
for(int y = 0; y < GameConstants::BFIELD_HEIGHT; y++)
{
ret[BattleHex(GameConstants::BFIELD_WIDTH - 1, y)] = EAccessibility::SIDE_COLUMN;
ret[BattleHex(0, y)] = EAccessibility::SIDE_COLUMN;
}
//gate -> should be before stacks
if(battleGetSiegeLevel() > 0 && battleGetWallState(EWallPart::GATE) != EWallState::DESTROYED)
{
ret[95] = ret[96] = EAccessibility::GATE; //block gate's hexes
}
//tiles occupied by standing stacks
for(auto stack : battleAliveStacks())
{
for(auto hex : stack->getHexes())
if(hex.isAvailable()) //towers can have <0 pos; we don't also want to overwrite side columns
ret[hex] = EAccessibility::ALIVE_STACK;
}
//obstacles
for(const auto &obst : battleGetAllObstacles())
{
for(auto hex : obst->getBlockedTiles())
ret[hex] = EAccessibility::OBSTACLE;
}
//walls
if(battleGetSiegeLevel() > 0)
{
static const int permanentlyLocked[] = {12, 45, 78, 112, 147, 165};
for(auto hex : permanentlyLocked)
ret[hex] = EAccessibility::UNAVAILABLE;
//TODO likely duplicated logic
static const std::pair<int, BattleHex> lockedIfNotDestroyed[] = //(which part of wall, which hex is blocked if this part of wall is not destroyed
{std::make_pair(2, BattleHex(182)), std::make_pair(3, BattleHex(130)),
std::make_pair(4, BattleHex(62)), std::make_pair(5, BattleHex(29))};
for(auto & elem : lockedIfNotDestroyed)
{
if(battleGetWallState(elem.first) != EWallState::DESTROYED)
ret[elem.second] = EAccessibility::DESTRUCTIBLE_WALL;
}
}
return ret;
}
AccessibilityInfo CBattleInfoCallback::getAccesibility(const CStack *stack) const
{
return getAccesibility(stack->getHexes());
}
AccessibilityInfo CBattleInfoCallback::getAccesibility(const std::vector<BattleHex> &accessibleHexes) const
{
auto ret = getAccesibility();
for(auto hex : accessibleHexes)
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if(hex.isValid())
ret[hex] = EAccessibility::ACCESSIBLE;
return ret;
}
ReachabilityInfo CBattleInfoCallback::makeBFS(const AccessibilityInfo &accessibility, const ReachabilityInfo::Parameters &params) const
{
ReachabilityInfo ret;
ret.accessibility = accessibility;
ret.params = params;
ret.predecessors.fill(BattleHex::INVALID);
ret.distances.fill(ReachabilityInfo::INFINITE_DIST);
if(!params.startPosition.isValid()) //if got call for arrow turrets
return ret;
const std::set<BattleHex> quicksands = getStoppers(params.perspective);
//const bool twoHexCreature = params.doubleWide;
std::queue<BattleHex> hexq; //bfs queue
//first element
hexq.push(params.startPosition);
ret.distances[params.startPosition] = 0;
while(!hexq.empty()) //bfs loop
{
const BattleHex curHex = hexq.front();
hexq.pop();
//walking stack can't step past the quicksands
//TODO what if second hex of two-hex creature enters quicksand
if(curHex != params.startPosition && vstd::contains(quicksands, curHex))
continue;
const int costToNeighbour = ret.distances[curHex] + 1;
for(BattleHex neighbour : curHex.neighbouringTiles())
{
const bool accessible = accessibility.accessible(neighbour, params.doubleWide, params.attackerOwned);
const int costFoundSoFar = ret.distances[neighbour];
if(accessible && costToNeighbour < costFoundSoFar)
{
hexq.push(neighbour);
ret.distances[neighbour] = costToNeighbour;
ret.predecessors[neighbour] = curHex;
}
}
}
return ret;
}
ReachabilityInfo CBattleInfoCallback::makeBFS(const CStack *stack) const
{
return makeBFS(getAccesibility(stack), ReachabilityInfo::Parameters(stack));
}
std::set<BattleHex> CBattleInfoCallback::getStoppers(BattlePerspective::BattlePerspective whichSidePerspective) const
{
std::set<BattleHex> ret;
RETURN_IF_NOT_BATTLE(ret);
for(auto &oi : battleGetAllObstacles(whichSidePerspective))
{
if(battleIsObstacleVisibleForSide(*oi, whichSidePerspective))
{
range::copy(oi->getStoppingTile(), vstd::set_inserter(ret));
}
}
return ret;
}
std::pair<const CStack *, BattleHex> CBattleInfoCallback::getNearestStack(const CStack * closest, boost::logic::tribool attackerOwned) const
{
auto reachability = getReachability(closest);
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auto avHexes = battleGetAvailableHexes(closest, false);
// I hate std::pairs with their undescriptive member names first / second
struct DistStack
{
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int distanceToPred;
BattleHex destination;
const CStack *stack;
};
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std::vector<DistStack> stackPairs;
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std::vector<const CStack *> possibleStacks = battleGetStacksIf([=](const CStack * s)
{
return s != closest && s->alive() && (boost::logic::indeterminate(attackerOwned) || s->attackerOwned == attackerOwned);
}, false);
for(const CStack * st : possibleStacks)
for(BattleHex hex : avHexes)
if(CStack::isMeleeAttackPossible(closest, st, hex))
{
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DistStack hlp = {reachability.distances[st->position], hex, st};
stackPairs.push_back(hlp);
}
if (stackPairs.size())
{
auto comparator = [](DistStack lhs, DistStack rhs) { return lhs.distanceToPred < rhs.distanceToPred; };
auto minimal = boost::min_element(stackPairs, comparator);
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return std::make_pair(minimal->stack, minimal->destination);
}
else
return std::make_pair<const CStack * , BattleHex>(nullptr, BattleHex::INVALID);
}
si8 CBattleInfoCallback::battleGetTacticDist() const
{
RETURN_IF_NOT_BATTLE(0);
//TODO get rid of this method
if(battleDoWeKnowAbout(battleGetTacticsSide()))
return battleTacticDist();
return 0;
}
bool CBattleInfoCallback::isInTacticRange(BattleHex dest) const
{
RETURN_IF_NOT_BATTLE(false);
auto side = battleGetTacticsSide();
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));
}
ReachabilityInfo CBattleInfoCallback::getReachability(const CStack *stack) const
{
ReachabilityInfo::Parameters params(stack);
if(!battleDoWeKnowAbout(!stack->attackerOwned))
{
//Stack is held by enemy, we can't use his perspective to check for reachability.
// Happens ie. when hovering enemy stack for its range. The arg could be set properly, but it's easier to fix it here.
params.perspective = battleGetMySide();
}
return getReachability(params);
}
ReachabilityInfo CBattleInfoCallback::getReachability(const ReachabilityInfo::Parameters &params) const
{
if(params.flying)
return getFlyingReachability(params);
else
return makeBFS(getAccesibility(params.knownAccessible), params);
}
ReachabilityInfo CBattleInfoCallback::getFlyingReachability(const ReachabilityInfo::Parameters &params) const
{
ReachabilityInfo ret;
ret.accessibility = getAccesibility(params.knownAccessible);
for(int i = 0; i < GameConstants::BFIELD_SIZE; i++)
{
if(ret.accessibility.accessible(i, params.doubleWide, params.attackerOwned))
{
ret.predecessors[i] = params.startPosition;
ret.distances[i] = BattleHex::getDistance(params.startPosition, i);
}
}
return ret;
}
AttackableTiles CBattleInfoCallback::getPotentiallyAttackableHexes (const CStack* attacker, BattleHex destinationTile, BattleHex attackerPos) const
{
//does not return hex attacked directly
//TODO: apply rotation to two-hex attackers
bool isAttacker = attacker->attackerOwned;
AttackableTiles at;
RETURN_IF_NOT_BATTLE(at);
const int WN = GameConstants::BFIELD_WIDTH;
ui16 hex = (attackerPos != BattleHex::INVALID) ? attackerPos.hex : attacker->position.hex; //real or hypothetical (cursor) position
2012-11-21 12:13:33 +03:00
//FIXME: dragons or cerbers can rotate before attack, making their base hex different (#1124)
bool reverse = isToReverse (hex, destinationTile, isAttacker, attacker->doubleWide(), isAttacker);
if (reverse)
{
hex = attacker->occupiedHex(hex); //the other hex stack stands on
}
if (attacker->hasBonusOfType(Bonus::ATTACKS_ALL_ADJACENT))
{
boost::copy (attacker->getSurroundingHexes (attackerPos), vstd::set_inserter (at.hostileCreaturePositions));
}
if (attacker->hasBonusOfType(Bonus::THREE_HEADED_ATTACK))
{
std::vector<BattleHex> hexes = attacker->getSurroundingHexes(attackerPos);
for (BattleHex tile : hexes)
{
if ((BattleHex::mutualPosition(tile, destinationTile) > -1 && BattleHex::mutualPosition (tile, hex) > -1)) //adjacent both to attacker's head and attacked tile
{
const CStack * st = battleGetStackByPos(tile, true);
if(st && st->owner != attacker->owner) //only hostile stacks - does it work well with Berserk?
{
at.hostileCreaturePositions.insert(tile);
}
}
}
}
if (attacker->hasBonusOfType(Bonus::TWO_HEX_ATTACK_BREATH) && BattleHex::mutualPosition (destinationTile.hex, hex) > -1) //only adjacent hexes are subject of dragon breath calculation
{
std::vector<BattleHex> hexes; //only one, in fact
int pseudoVector = destinationTile.hex - hex;
switch (pseudoVector)
{
case 1:
case -1:
BattleHex::checkAndPush (destinationTile.hex + pseudoVector, hexes);
break;
case WN: //17 //left-down or right-down
case -WN: //-17 //left-up or right-up
case WN + 1: //18 //right-down
case -WN + 1: //-16 //right-up
BattleHex::checkAndPush (destinationTile.hex + pseudoVector + (((hex/WN)%2) ? 1 : -1 ), hexes);
break;
case WN-1: //16 //left-down
case -WN-1: //-18 //left-up
BattleHex::checkAndPush (destinationTile.hex + pseudoVector + (((hex/WN)%2) ? 1 : 0), hexes);
break;
}
for (BattleHex tile : hexes)
{
//friendly stacks can also be damaged by Dragon Breath
if (battleGetStackByPos (tile, true))
at.friendlyCreaturePositions.insert (tile);
}
}
return at;
}
std::set<const CStack*> CBattleInfoCallback::getAttackedCreatures(const CStack* attacker, BattleHex destinationTile, BattleHex attackerPos /*= BattleHex::INVALID*/) const
{
std::set<const CStack*> attackedCres;
RETURN_IF_NOT_BATTLE(attackedCres);
AttackableTiles at = getPotentiallyAttackableHexes(attacker, destinationTile, attackerPos);
for (BattleHex tile : at.hostileCreaturePositions) //all around & three-headed attack
{
const CStack * st = battleGetStackByPos(tile, true);
if(st && st->owner != attacker->owner) //only hostile stacks - does it work well with Berserk?
{
attackedCres.insert(st);
}
}
for (BattleHex tile : at.friendlyCreaturePositions)
{
const CStack * st = battleGetStackByPos(tile, true);
if(st) //friendly stacks can also be damaged by Dragon Breath
{
attackedCres.insert(st);
}
}
return attackedCres;
}
//TODO: this should apply also to mechanics and cursor interface
bool CBattleInfoCallback::isToReverseHlp (BattleHex hexFrom, BattleHex hexTo, bool curDir) const
{
int fromX = hexFrom.getX();
int fromY = hexFrom.getY();
int toX = hexTo.getX();
int toY = hexTo.getY();
if (curDir) // attacker, facing right
{
if (fromX < toX)
return false;
if (fromX > toX)
return true;
if (fromY % 2 == 0 && toY % 2 == 1)
return true;
return false;
}
else // defender, facing left
{
if(fromX < toX)
return true;
if(fromX > toX)
return false;
if (fromY % 2 == 1 && toY % 2 == 0)
return true;
return false;
}
}
//TODO: this should apply also to mechanics and cursor interface
bool CBattleInfoCallback::isToReverse (BattleHex hexFrom, BattleHex hexTo, bool curDir, bool toDoubleWide, bool toDir) const
{
if (hexTo < 0 || hexFrom < 0) //turret
return false;
if (toDoubleWide)
{
if (isToReverseHlp (hexFrom, hexTo, curDir))
{
if (toDir)
return isToReverseHlp (hexFrom, hexTo-1, curDir);
else
return isToReverseHlp (hexFrom, hexTo+1, curDir);
}
return false;
}
else
{
return isToReverseHlp(hexFrom, hexTo, curDir);
}
}
ReachabilityInfo::TDistances CBattleInfoCallback::battleGetDistances(const CStack * stack, BattleHex hex /*= BattleHex::INVALID*/, BattleHex * predecessors /*= nullptr*/) const
{
ReachabilityInfo::TDistances ret;
ret.fill(-1);
RETURN_IF_NOT_BATTLE(ret);
ReachabilityInfo::Parameters params(stack);
params.perspective = battleGetMySide();
params.startPosition = hex.isValid() ? hex : stack->position;
auto reachability = getReachability(params);
boost::copy(reachability.distances, ret.begin());
if(predecessors)
for(int i = 0; i < GameConstants::BFIELD_SIZE; i++)
predecessors[i] = reachability.predecessors[i];
return ret;
}
si8 CBattleInfoCallback::battleHasDistancePenalty(const CStack * stack, BattleHex destHex) const
{
return battleHasDistancePenalty(stack, stack->position, destHex);
}
si8 CBattleInfoCallback::battleHasDistancePenalty(const IBonusBearer *bonusBearer, BattleHex shooterPosition, BattleHex destHex) const
{
RETURN_IF_NOT_BATTLE(false);
if(bonusBearer->hasBonusOfType(Bonus::NO_DISTANCE_PENALTY))
return false;
if(const CStack * dstStack = battleGetStackByPos(destHex, false))
{
//If any hex of target creature is within range, there is no penalty
for(auto hex : dstStack->getHexes())
if(BattleHex::getDistance(shooterPosition, hex) <= GameConstants::BATTLE_PENALTY_DISTANCE)
return false;
//TODO what about two-hex shooters?
}
else
{
if (BattleHex::getDistance(shooterPosition, destHex) <= GameConstants::BATTLE_PENALTY_DISTANCE)
return false;
}
return true;
}
BattleHex CBattleInfoCallback::wallPartToBattleHex(EWallPart::EWallPart part) const
{
RETURN_IF_NOT_BATTLE(BattleHex::INVALID);
return WallPartToHex(part);
}
EWallPart::EWallPart CBattleInfoCallback::battleHexToWallPart(BattleHex hex) const
{
RETURN_IF_NOT_BATTLE(EWallPart::INVALID);
return hexToWallPart(hex);
}
bool CBattleInfoCallback::isWallPartPotentiallyAttackable(EWallPart::EWallPart wallPart) const
{
RETURN_IF_NOT_BATTLE(false);
return wallPart != EWallPart::INDESTRUCTIBLE_PART && wallPart != EWallPart::INDESTRUCTIBLE_PART_OF_GATE &&
wallPart != EWallPart::INVALID;
}
std::vector<BattleHex> CBattleInfoCallback::getAttackableBattleHexes() const
{
std::vector<BattleHex> attackableBattleHexes;
RETURN_IF_NOT_BATTLE(attackableBattleHexes);
for(auto & wallPartPair : wallParts)
{
if(isWallPartPotentiallyAttackable(wallPartPair.second))
{
auto wallState = static_cast<EWallState::EWallState>(battleGetWallState(static_cast<int>(wallPartPair.second)));
if(wallState == EWallState::INTACT || wallState == EWallState::DAMAGED)
{
attackableBattleHexes.push_back(BattleHex(wallPartPair.first));
}
}
}
return attackableBattleHexes;
}
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ESpellCastProblem::ESpellCastProblem CBattleInfoCallback::battleCanCastThisSpell(const ISpellCaster * caster, const CSpell * spell, ECastingMode::ECastingMode mode) const
{
RETURN_IF_NOT_BATTLE(ESpellCastProblem::INVALID);
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if(caster == nullptr)
{
logGlobal->errorStream() << "CBattleInfoCallback::battleCanCastThisSpell: no spellcaster.";
return ESpellCastProblem::INVALID;
}
const PlayerColor player = caster->getOwner();
const ui8 side = playerToSide(player);
if(!battleDoWeKnowAbout(side))
return ESpellCastProblem::INVALID;
ESpellCastProblem::ESpellCastProblem genProblem = battleCanCastSpell(player, mode);
if(genProblem != ESpellCastProblem::OK)
return genProblem;
switch(mode)
{
case ECastingMode::HERO_CASTING:
{
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const CGHeroInstance * castingHero = dynamic_cast<const CGHeroInstance *>(caster);//todo: unify hero|creature spell cost
assert(castingHero);
if(!castingHero->canCastThisSpell(spell))
return ESpellCastProblem::HERO_DOESNT_KNOW_SPELL;
if(castingHero->mana < battleGetSpellCost(spell, castingHero)) //not enough mana
return ESpellCastProblem::NOT_ENOUGH_MANA;
}
break;
}
if(!spell->combatSpell)
return ESpellCastProblem::ADVMAP_SPELL_INSTEAD_OF_BATTLE_SPELL;
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const ESpellCastProblem::ESpellCastProblem specificProblem = spell->canBeCast(this, player);
if(specificProblem != ESpellCastProblem::OK)
return specificProblem;
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if(spell->isNegative() || spell->hasEffects())
{
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bool allStacksImmune = true;
//we are interested only in enemy stacks when casting offensive spells
//TODO: should hero be able to cast non-smart negative spell if all enemy stacks are immune?
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auto stacks = spell->isNegative() ? battleAliveStacks(!side) : battleAliveStacks();
for(auto stack : stacks)
{
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if(ESpellCastProblem::OK == spell->isImmuneByStack(caster, stack))
{
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allStacksImmune = false;
break;
}
}
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if(allStacksImmune)
return ESpellCastProblem::NO_APPROPRIATE_TARGET;
}
if(battleMaxSpellLevel(side) < spell->level) //effect like Recanter's Cloak or Orb of Inhibition
return ESpellCastProblem::SPELL_LEVEL_LIMIT_EXCEEDED;
//checking if there exists an appropriate target
switch(spell->getTargetType())
{
case CSpell::CREATURE:
if(mode == ECastingMode::HERO_CASTING)
{
const CSpell::TargetInfo ti(spell, caster->getSpellSchoolLevel(spell));
bool targetExists = false;
for(const CStack * stack : battleGetAllStacks()) //dead stacks will be immune anyway
{
bool immune = ESpellCastProblem::OK != spell->isImmuneByStack(caster, stack);
bool casterStack = stack->owner == caster->getOwner();
if(!immune)
{
switch (spell->positiveness)
{
case CSpell::POSITIVE:
if(casterStack || !ti.smart)
{
targetExists = true;
break;
}
break;
case CSpell::NEUTRAL:
targetExists = true;
break;
case CSpell::NEGATIVE:
if(!casterStack || !ti.smart)
{
targetExists = true;
break;
}
break;
}
}
}
if(!targetExists)
{
return ESpellCastProblem::NO_APPROPRIATE_TARGET;
}
}
break;
case CSpell::OBSTACLE:
break;
}
return ESpellCastProblem::OK;
}
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std::vector<BattleHex> CBattleInfoCallback::battleGetPossibleTargets(PlayerColor player, const CSpell *spell) const
{
std::vector<BattleHex> ret;
RETURN_IF_NOT_BATTLE(ret);
switch(spell->getTargetType())
{
case CSpell::CREATURE:
{
const CGHeroInstance * caster = battleGetFightingHero(playerToSide(player)); //TODO
const CSpell::TargetInfo ti(spell, caster->getSpellSchoolLevel(spell));
for(const CStack * stack : battleAliveStacks())
{
bool immune = ESpellCastProblem::OK != spell->isImmuneByStack(caster, stack);
bool casterStack = stack->owner == caster->getOwner();
if(!immune)
switch (spell->positiveness)
{
case CSpell::POSITIVE:
if(casterStack || ti.smart)
ret.push_back(stack->position);
break;
case CSpell::NEUTRAL:
ret.push_back(stack->position);
break;
case CSpell::NEGATIVE:
if(!casterStack || ti.smart)
ret.push_back(stack->position);
break;
}
}
}
break;
default:
logGlobal->errorStream() << "FIXME " << __FUNCTION__ << " doesn't work with target type " << spell->getTargetType();
}
return ret;
}
ui32 CBattleInfoCallback::battleGetSpellCost(const CSpell * sp, const CGHeroInstance * caster) const
{
RETURN_IF_NOT_BATTLE(-1);
//TODO should be replaced using bonus system facilities (propagation onto battle node)
ui32 ret = caster->getSpellCost(sp);
//checking for friendly stacks reducing cost of the spell and
//enemy stacks increasing it
si32 manaReduction = 0;
si32 manaIncrease = 0;
for(auto stack : battleAliveStacks())
{
if(stack->owner == caster->tempOwner && stack->hasBonusOfType(Bonus::CHANGES_SPELL_COST_FOR_ALLY) )
{
vstd::amax(manaReduction, stack->valOfBonuses(Bonus::CHANGES_SPELL_COST_FOR_ALLY));
}
if( stack->owner != caster->tempOwner && stack->hasBonusOfType(Bonus::CHANGES_SPELL_COST_FOR_ENEMY) )
{
vstd::amax(manaIncrease, stack->valOfBonuses(Bonus::CHANGES_SPELL_COST_FOR_ENEMY));
}
}
return ret - manaReduction + manaIncrease;
}
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ESpellCastProblem::ESpellCastProblem CBattleInfoCallback::battleCanCastThisSpellHere(const ISpellCaster * caster, const CSpell * spell, ECastingMode::ECastingMode mode, BattleHex dest) const
{
RETURN_IF_NOT_BATTLE(ESpellCastProblem::INVALID);
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if(caster == nullptr)
{
logGlobal->errorStream() << "CBattleInfoCallback::battleCanCastThisSpellHere: no spellcaster.";
return ESpellCastProblem::INVALID;
}
const PlayerColor player = caster->getOwner();
ESpellCastProblem::ESpellCastProblem moreGeneralProblem = battleCanCastThisSpell(caster, spell, mode);
if(moreGeneralProblem != ESpellCastProblem::OK)
return moreGeneralProblem;
if(spell->getTargetType() == CSpell::OBSTACLE)
{
if(spell->id == SpellID::REMOVE_OBSTACLE)
{
if(auto obstacle = battleGetObstacleOnPos(dest, false))
{
switch (obstacle->obstacleType)
{
case CObstacleInstance::ABSOLUTE_OBSTACLE: //cliff-like obstacles can't be removed
case CObstacleInstance::MOAT:
return ESpellCastProblem::NO_APPROPRIATE_TARGET;
case CObstacleInstance::USUAL:
return ESpellCastProblem::OK;
// //TODO FIRE_WALL only for ADVANCED level casters
// case CObstacleInstance::FIRE_WALL:
// return
// //TODO other magic obstacles for EXPERT
// case CObstacleInstance::QUICKSAND:
// case CObstacleInstance::LAND_MINE:
// case CObstacleInstance::FORCE_FIELD:
// return
default:
// assert(0);
return ESpellCastProblem::OK;
}
}
}
//isObstacleOnTile(dest)
//
//
//TODO
//assert that it's remove obstacle
//rules whether we can remove spell-created obstacle
return ESpellCastProblem::NO_APPROPRIATE_TARGET;
}
//get dead stack if we cast resurrection or animate dead
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const CStack *deadStack = getStackIf([dest](const CStack *s) { return !s->alive() && s->coversPos(dest); });
const CStack *aliveStack = getStackIf([dest](const CStack *s) { return s->alive() && s->coversPos(dest);});
if(spell->isRisingSpell())
{
if(!deadStack && !aliveStack)
return ESpellCastProblem::NO_APPROPRIATE_TARGET;
if(deadStack && deadStack->owner != player) //you can resurrect only your own stacks //FIXME: it includes alive stacks as well
return ESpellCastProblem::NO_APPROPRIATE_TARGET;
}
else if(spell->getTargetType() == CSpell::CREATURE)
{
if(!aliveStack)
return ESpellCastProblem::NO_APPROPRIATE_TARGET;
if(spell->isNegative() && aliveStack->owner == player)
return ESpellCastProblem::NO_APPROPRIATE_TARGET;
if(spell->isPositive() && aliveStack->owner != player)
return ESpellCastProblem::NO_APPROPRIATE_TARGET;
}
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return spell->isImmuneAt(this, caster, mode, dest);
}
const CStack * CBattleInfoCallback::getStackIf(std::function<bool(const CStack*)> pred) const
{
RETURN_IF_NOT_BATTLE(nullptr);
auto stacks = battleGetAllStacks();
auto stackItr = range::find_if(stacks, pred);
return stackItr == stacks.end()
? nullptr
: *stackItr;
}
bool CBattleInfoCallback::battleIsStackBlocked(const CStack * stack) const
{
RETURN_IF_NOT_BATTLE(false);
if(stack->hasBonusOfType(Bonus::SIEGE_WEAPON)) //siege weapons cannot be blocked
return false;
for(const CStack * s : batteAdjacentCreatures(stack))
{
if (s->owner != stack->owner) //blocked by enemy stack
return true;
}
return false;
}
std::set<const CStack*> CBattleInfoCallback:: batteAdjacentCreatures(const CStack * stack) const
{
std::set<const CStack*> stacks;
RETURN_IF_NOT_BATTLE(stacks);
for (BattleHex hex : stack->getSurroundingHexes())
if(const CStack *neighbour = battleGetStackByPos(hex, true))
stacks.insert(neighbour);
return stacks;
}
SpellID CBattleInfoCallback::getRandomBeneficialSpell(const CStack * subject) const
{
RETURN_IF_NOT_BATTLE(SpellID::NONE);
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//This is complete list. No spells from mods.
//todo: this should be Spellbook of caster Stack
static const std::set<SpellID> allPossibleSpells =
{
SpellID::AIR_SHIELD,
SpellID::ANTI_MAGIC,
SpellID::BLESS,
SpellID::BLOODLUST,
SpellID::COUNTERSTRIKE,
SpellID::CURE,
SpellID::FIRE_SHIELD,
SpellID::FORTUNE,
SpellID::HASTE,
SpellID::MAGIC_MIRROR,
SpellID::MIRTH,
SpellID::PRAYER,
SpellID::PRECISION,
SpellID::PROTECTION_FROM_AIR,
SpellID::PROTECTION_FROM_EARTH,
SpellID::PROTECTION_FROM_FIRE,
SpellID::PROTECTION_FROM_WATER,
SpellID::SHIELD,
SpellID::SLAYER,
SpellID::STONE_SKIN
};
std::vector<SpellID> beneficialSpells;
auto getAliveEnemy = [=](const std::function<bool(const CStack * )> & pred)
{
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return getStackIf([=](const CStack * stack)
{
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return pred(stack) && stack->owner != subject->owner && stack->alive();
});
};
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for(const SpellID spellID : allPossibleSpells)
{
if (subject->hasBonusFrom(Bonus::SPELL_EFFECT, spellID)
//TODO: this ability has special limitations
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|| battleCanCastThisSpellHere(subject, spellID.toSpell(), ECastingMode::CREATURE_ACTIVE_CASTING, subject->position) != ESpellCastProblem::OK)
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continue;
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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
{
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return !stack->shots;
});
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if (!walker)
continue;
}
break;
case SpellID::AIR_SHIELD: //only against active shooters
{
auto shooter = getAliveEnemy([&](const CStack * stack) //look for enemy, non-shooting stack
{
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return stack->hasBonusOfType(Bonus::SHOOTER) && stack->shots;
});
if (!shooter)
continue;
}
break;
case SpellID::ANTI_MAGIC:
case SpellID::MAGIC_MIRROR:
case SpellID::PROTECTION_FROM_AIR:
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;
}
break;
case SpellID::CURE: //only damaged units
{
//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;
}
break;
case SpellID::PRECISION:
{
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
{
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const auto isKing = Selector::type(Bonus::KING1)
.Or(Selector::type(Bonus::KING2))
.Or(Selector::type(Bonus::KING3));
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return stack->hasBonus(isKing);
});
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if (!kingMonster)
continue;
}
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break;
}
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beneficialSpells.push_back(spellID);
}
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if(!beneficialSpells.empty())
{
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return *RandomGeneratorUtil::nextItem(beneficialSpells, gs->getRandomGenerator());
}
else
{
return SpellID::NONE;
}
}
SpellID CBattleInfoCallback::getRandomCastedSpell(const CStack * caster) const
{
RETURN_IF_NOT_BATTLE(SpellID::NONE);
TBonusListPtr bl = caster->getBonuses(Selector::type(Bonus::SPELLCASTER));
if (!bl->size())
return SpellID::NONE;
int totalWeight = 0;
for(Bonus * b : *bl)
{
totalWeight += std::max(b->additionalInfo, 1); //minimal chance to cast is 1
}
int randomPos = gs->getRandomGenerator().nextInt(totalWeight - 1);
for(Bonus * b : *bl)
{
randomPos -= std::max(b->additionalInfo, 1);
if(randomPos < 0)
{
return SpellID(b->subtype);
}
}
return SpellID::NONE;
}
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int CBattleInfoCallback::battleGetSurrenderCost(PlayerColor Player) const
{
RETURN_IF_NOT_BATTLE(-3);
if(!battleCanSurrender(Player))
return -1;
int ret = 0;
double discount = 0;
for(const CStack *s : battleAliveStacks(playerToSide(Player)))
if(s->base) //we pay for our stack that comes from our army slots - condition eliminates summoned cres and war machines
ret += s->getCreature()->cost[Res::GOLD] * s->count;
if(const CGHeroInstance *h = battleGetFightingHero(playerToSide(Player)))
discount += h->valOfBonuses(Bonus::SURRENDER_DISCOUNT);
ret *= (100.0 - discount) / 100.0;
vstd::amax(ret, 0); //no negative costs for >100% discounts (impossible in original H3 mechanics, but some day...)
return ret;
}
si8 CBattleInfoCallback::battleMaxSpellLevel(ui8 side) const
{
const IBonusBearer *node = nullptr;
if(const CGHeroInstance * h = battleGetFightingHero(side))
node = h;
else
node = getBattleNode();
if(!node)
return GameConstants::SPELL_LEVELS;
//We can't "just get value" - it'd be 0 if there are bonuses (and all would be blocked)
auto b = node->getBonuses(Selector::type(Bonus::BLOCK_MAGIC_ABOVE));
if(b->size())
return b->totalValue();
return GameConstants::SPELL_LEVELS;
}
boost::optional<int> CBattleInfoCallback::battleIsFinished() const
{
auto stacks = battleGetAllStacks();
//checking winning condition
bool hasStack[2]; //hasStack[0] - true if attacker has a living stack; defender similarly
hasStack[0] = hasStack[1] = false;
for(auto & stack : stacks)
{
if(stack->alive() && !stack->hasBonusOfType(Bonus::SIEGE_WEAPON))
{
hasStack[1-stack->attackerOwned] = true;
}
}
if(!hasStack[0] && !hasStack[1])
return 2;
if(!hasStack[1])
return 0;
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if(!hasStack[0])
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();
}
ESpellCastProblem::ESpellCastProblem CPlayerBattleCallback::battleCanCastThisSpell(const CSpell * spell) const
{
RETURN_IF_NOT_BATTLE(ESpellCastProblem::INVALID);
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ASSERT_IF_CALLED_WITH_PLAYER
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const ISpellCaster * hero = battleGetMyHero();
if(hero == nullptr)
return ESpellCastProblem::INVALID;
else
return CBattleInfoCallback::battleCanCastThisSpell(hero, spell, ECastingMode::HERO_CASTING);
}
bool CPlayerBattleCallback::battleCanFlee() const
{
RETURN_IF_NOT_BATTLE(false);
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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
}
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return battleGetStacksIf([=](const CStack * s){
const bool ownerMatches = (whose == MINE_AND_ENEMY)
|| (whose == ONLY_MINE && s->owner == player)
|| (whose == ONLY_ENEMY && s->owner != player);
const bool alivenessMatches = s->alive() || !onlyAlive;
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return ownerMatches && alivenessMatches;
});
}
int CPlayerBattleCallback::battleGetSurrenderCost() const
{
RETURN_IF_NOT_BATTLE(-3)
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ASSERT_IF_CALLED_WITH_PLAYER
return CBattleInfoCallback::battleGetSurrenderCost(*player);
}
bool CPlayerBattleCallback::battleCanCastSpell(ESpellCastProblem::ESpellCastProblem *outProblem /*= nullptr*/) const
{
RETURN_IF_NOT_BATTLE(false);
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ASSERT_IF_CALLED_WITH_PLAYER
auto problem = CBattleInfoCallback::battleCanCastSpell(*player, ECastingMode::HERO_CASTING);
if(outProblem)
*outProblem = problem;
return problem == ESpellCastProblem::OK;
}
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;
}