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monster.cpp
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//////////////////////////////////////////////////////////////////////
// OpenTibia - an opensource roleplaying game
//////////////////////////////////////////////////////////////////////
//
//////////////////////////////////////////////////////////////////////
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//////////////////////////////////////////////////////////////////////
#include "otpch.h"
#include <vector>
#include <string>
#include <algorithm>
#include "monster.h"
#include "monsters.h"
#include "game.h"
#include "spells.h"
#include "combat.h"
#include "spawn.h"
#include "configmanager.h"
extern Game g_game;
extern ConfigManager g_config;
extern Monsters g_monsters;
AutoList<Monster>Monster::listMonster;
int32_t Monster::despawnRange;
int32_t Monster::despawnRadius;
Monster* Monster::createMonster(MonsterType* mType)
{
return new Monster(mType);
}
Monster* Monster::createMonster(const std::string& name)
{
MonsterType* mType = g_monsters.getMonsterType(name);
if(!mType)
return NULL;
return createMonster(mType);
}
Monster::Monster(MonsterType* _mtype) :
Creature()
{
isActivated = false;
isMasterInRange = false;
mType = _mtype;
spawn = NULL;
defaultOutfit = mType->outfit;
currentOutfit = mType->outfit;
health = mType->health;
healthMax = mType->health_max;
baseSpeed = mType->base_speed;
internalLight.level = mType->lightLevel;
internalLight.color = mType->lightColor;
minCombatValue = 0;
maxCombatValue = 0;
targetTicks = 0;
targetChangeTicks = 0;
targetChangeCooldown = 0;
attackTicks = 0;
defenseTicks = 0;
yellTicks = 0;
extraMeleeAttack = false;
strDescription = mType->nameDescription;
toLowerCaseString(strDescription);
// register creature events
MonsterScriptList::iterator it;
for(it = mType->scriptList.begin(); it != mType->scriptList.end(); ++it)
{
if(!registerCreatureEvent(*it))
std::clog << "Warning: [Monster::Monster]. Unknown event name - " << *it << std::endl;
}
}
Monster::~Monster()
{
clearTargetList();
clearFriendList();
}
void Monster::onAttackedCreatureDisappear(bool isLogout)
{
#ifdef __DEBUG__
std::clog << "Attacked creature disappeared." << std::endl;
#endif
attackTicks = 0;
extraMeleeAttack = true;
}
void Monster::onFollowCreatureDisappear(bool isLogout)
{
#ifdef __DEBUG__
std::clog << "Follow creature disappeared." << std::endl;
#endif
}
void Monster::onCreatureAppear(const Creature* creature, bool isLogin)
{
Creature::onCreatureAppear(creature, isLogin);
if(creature == this)
{
//We just spawned lets look around to see who is there.
if(isSummon())
isMasterInRange = canSee(getMaster()->getPosition());
updateTargetList();
activate();
}
else
onCreatureEnter(const_cast<Creature*>(creature));
}
void Monster::onCreatureDisappear(const Creature* creature, uint32_t stackpos, bool isLogout)
{
Creature::onCreatureDisappear(creature, stackpos, isLogout);
if(creature == this)
{
if(spawn)
spawn->startSpawnCheck();
deactivate(true);
}
else
onCreatureLeave(const_cast<Creature*>(creature));
}
void Monster::onCreatureMove(const Creature* creature, const Tile* newTile, const Position& newPos,
const Tile* oldTile, const Position& oldPos, uint32_t oldStackPos, bool teleport)
{
Creature::onCreatureMove(creature, newTile, newPos, oldTile, oldPos, oldStackPos, teleport);
if(creature == this)
{
if(isSummon())
isMasterInRange = canSee(getMaster()->getPosition());
updateTargetList();
activate();
/*
TODO: Optimizations here
if(teleport)
//do a full update of the friend/target list
else
//partial update of the friend/target list
*/
}
else
{
bool canSeeNewPos = canSee(newPos);
bool canSeeOldPos = canSee(oldPos);
if(canSeeNewPos && !canSeeOldPos)
onCreatureEnter(const_cast<Creature*>(creature));
else if(!canSeeNewPos && canSeeOldPos)
onCreatureLeave(const_cast<Creature*>(creature));
if(isSummon() && getMaster() == creature)
{
if(canSeeNewPos)
{
//Turn the summon on again
isMasterInRange = true;
activate();
}
}
}
if(!followCreature && !isSummon())
{
//we have no target lets try pick this one
if(isOpponent(creature))
selectTarget(const_cast<Creature*>(creature));
}
}
void Monster::updateTargetList()
{
CreatureList::iterator it;
for(it = friendList.begin(); it != friendList.end();)
{
if((*it)->getHealth() <= 0 || !canSee((*it)->getPosition()))
{
(*it)->releaseThing2();
it = friendList.erase(it);
}
else
++it;
}
for(it = targetList.begin(); it != targetList.end();)
{
if((*it)->getHealth() <= 0 || !canSee((*it)->getPosition()))
{
(*it)->releaseThing2();
it = targetList.erase(it);
}
else
++it;
}
const SpectatorVec& list = g_game.getSpectators(getPosition());
for(SpectatorVec::const_iterator it = list.begin(); it != list.end(); ++it)
{
if((*it) != this && canSee((*it)->getPosition()))
onCreatureFound(*it);
}
}
void Monster::clearTargetList()
{
for(CreatureList::iterator it = targetList.begin(); it != targetList.end(); ++it)
(*it)->releaseThing2();
targetList.clear();
}
void Monster::clearFriendList()
{
for(CreatureList::iterator it = friendList.begin(); it != friendList.end(); ++it)
(*it)->releaseThing2();
friendList.clear();
}
void Monster::onCreatureFound(Creature* creature, bool pushFront /*= false*/)
{
if(isFriend(creature))
{
assert(creature != this);
if(std::find(friendList.begin(), friendList.end(), creature) == friendList.end())
{
creature->useThing2();
friendList.push_back(creature);
}
}
if(isOpponent(creature))
{
assert(creature != this);
if(std::find(targetList.begin(), targetList.end(), creature) == targetList.end())
{
creature->useThing2();
if(pushFront)
targetList.push_front(creature);
else
targetList.push_back(creature);
activate();
}
}
}
void Monster::onCreatureEnter(Creature* creature)
{
//std::clog << "onCreatureEnter - " << creature->getName() << std::endl;
if(getMaster() == creature)
{
//Turn the summon on again
isMasterInRange = true;
activate();
}
onCreatureFound(creature, true);
}
bool Monster::isFriend(const Creature* creature)
{
if(isSummon() && getMaster()->getPlayer())
{
const Player* masterPlayer = getMaster()->getPlayer();
const Player* tmpPlayer = NULL;
if(creature->getPlayer())
tmpPlayer = creature->getPlayer();
else if(creature->getMaster() && creature->getMaster()->getPlayer())
tmpPlayer = creature->getMaster()->getPlayer();
if(tmpPlayer && (tmpPlayer == getMaster() || masterPlayer->isPartner(tmpPlayer)))
return true;
}
else
{
if(creature->getMonster() && !creature->isSummon())
return true;
}
return false;
}
bool Monster::isOpponent(const Creature* creature)
{
if(isSummon() && getMaster()->getPlayer())
return true;
else
{
if((creature->getPlayer() && !creature->getPlayer()->hasFlag(PlayerFlag_IgnoredByMonsters)) ||
(creature->getMaster() && creature->getMaster()->getPlayer()))
{
return true;
}
}
return false;
}
void Monster::onCreatureLeave(Creature* creature)
{
//std::clog << "onCreatureLeave - " << creature->getName() << std::endl;
if(getMaster() == creature)
{
//Turn the monster off until its master comes back
isMasterInRange = false;
deactivate();
}
//update friendList
if(isFriend(creature))
{
CreatureList::iterator it = std::find(friendList.begin(), friendList.end(), creature);
if(it != friendList.end())
{
(*it)->releaseThing2();
friendList.erase(it);
}
#ifdef __DEBUG__
else
std::clog << "Monster: " << creature->getName() << " not found in the friendList." << std::endl;
#endif
}
//update targetList
if(isOpponent(creature))
{
CreatureList::iterator it = std::find(targetList.begin(), targetList.end(), creature);
if(it != targetList.end())
{
(*it)->releaseThing2();
targetList.erase(it);
if(targetList.empty())
deactivate();
}
#ifdef __DEBUG__
else
std::clog << "Player: " << creature->getName() << " not found in the targetList." << std::endl;
#endif
}
}
bool Monster::searchTarget(TargetSearchType_t searchType /*= TARGETSEARCH_DEFAULT*/)
{
#ifdef __DEBUG__
std::clog << "Searching target... " << std::endl;
#endif
std::list<Creature*> resultList;
const Position& myPos = getPosition();
for(CreatureList::iterator it = targetList.begin(); it != targetList.end(); ++it)
{
if(followCreature != (*it) && isTarget(*it))
{
if(searchType == TARGETSEARCH_RANDOM || canUseAttack(myPos, *it))
resultList.push_back(*it);
}
}
if(!resultList.empty())
{
uint32_t index = random_range(0, resultList.size() - 1);
CreatureList::iterator it = resultList.begin();
std::advance(it, index);
#ifdef __DEBUG__
std::clog << "Selecting target " << (*it)->getName() << std::endl;
#endif
return selectTarget(*it);
}
if(searchType == TARGETSEARCH_ATTACKRANGE)
return false;
//lets just pick the first target in the list
for(CreatureList::iterator it = targetList.begin(); it != targetList.end(); ++it)
{
if(followCreature != (*it) && selectTarget(*it))
{
#ifdef __DEBUG__
std::clog << "Selecting target " << (*it)->getName() << std::endl;
#endif
return true;
}
}
return false;
}
void Monster::onFollowCreatureComplete(const Creature* creature)
{
if(creature)
{
CreatureList::iterator it = std::find(targetList.begin(), targetList.end(), creature);
Creature* target;
if(it != targetList.end())
{
target = (*it);
targetList.erase(it);
if(hasFollowPath)
{
//push target we have found a path to the front
targetList.push_front(target);
}
else if(!isSummon())
{
//push target we have not found a path to the back
targetList.push_back(target);
}
}
}
}
BlockType_t Monster::blockHit(Creature* attacker, CombatType_t combatType, int32_t& damage,
bool checkDefense /* = false*/, bool checkArmor /* = false*/)
{
BlockType_t blockType = Creature::blockHit(attacker, combatType, damage, checkDefense, checkArmor);
if(damage != 0){
int32_t elementMod = 0;
ElementMap::iterator it = mType->elementMap.find(combatType);
if(it != mType->elementMap.end())
elementMod = it->second;
if(elementMod != 0)
{
damage = (int32_t)std::ceil(damage * ((float)(100 - elementMod) / 100));
if(damage <= 0)
{
damage = 0;
blockType = BLOCK_DEFENSE;
}
}
}
return blockType;
}
bool Monster::isTarget(Creature* creature)
{
if(creature->isRemoved() || !creature->isAttackable() ||
creature->getZone() == ZONE_PROTECTION || !canSeeCreature(creature))
{
return false;
}
if(creature->getPosition().z != getPosition().z)
return false;
return true;
}
bool Monster::selectTarget(Creature* creature)
{
#ifdef __DEBUG__
std::clog << "Selecting target... " << std::endl;
#endif
if(!isTarget(creature))
return false;
CreatureList::iterator it = std::find(targetList.begin(), targetList.end(), creature);
if(it == targetList.end())
{
//Target not found in our target list.
#ifdef __DEBUG__
std::clog << "Target not found in targetList." << std::endl;
#endif
return false;
}
if(isHostile() || isSummon())
{
if(setAttackedCreature(creature) && !isSummon())
{
Dispatcher::getDispatcher().addTask(createTask(
boost::bind(&Game::checkCreatureAttack, &g_game, getID())));
}
}
return setFollowCreature(creature, true);
}
bool Monster::activate(bool forced /*= false*/)
{
if(isSummon())
{
if(isMasterInRange || forced)
isActivated = true;
}
else
{
if(!targetList.empty() || forced)
isActivated = true;
}
if(isActivated || !conditions.empty())
g_game.addCreatureCheck(this);
return isActivated;
}
bool Monster::deactivate(bool forced /*= false*/)
{
if(isSummon())
{
if(!isMasterInRange || getMaster()->isIdle() || forced)
isActivated = false;
}
else
{
if(targetList.empty() || forced)
isActivated = false;
}
if((!isActivated && conditions.empty()) || forced)
g_game.removeCreatureCheck(this);
return !isActivated;
}
void Monster::onAddCondition(ConditionType_t type)
{
activate();
}
void Monster::onEndCondition(ConditionType_t type)
{
deactivate();
}
void Monster::onThink(uint32_t interval)
{
Creature::onThink(interval);
if(despawn())
{
g_game.removeCreature(this, true);
deactivate(true);
}
else if(!deactivate())
{
addEventWalk();
if(isSummon())
{
if(!attackedCreature)
{
if(getMaster() && getMaster()->getAttackedCreature())
{
///This happens if the monster is summoned during combat
selectTarget(getMaster()->getAttackedCreature());
}
else if(getMaster() != followCreature)
{
//Our master has not ordered us to attack anything, lets follow him around instead.
setFollowCreature(getMaster());
}
else if(attackedCreature == this)
setFollowCreature(NULL);
else if(followCreature != attackedCreature)
{
//This happens just after a master orders an attack, so lets follow it aswell.
setFollowCreature(attackedCreature);
}
}
}
else if(!targetList.empty())
{
if(!followCreature || !hasFollowPath)
searchTarget();
else if(isFleeing())
{
if(attackedCreature && !canUseAttack(getPosition(), attackedCreature))
searchTarget(TARGETSEARCH_ATTACKRANGE);
}
}
onThinkTarget(interval);
onThinkYell(interval);
onThinkDefense(interval);
}
}
void Monster::doAttacking(uint32_t interval)
{
if(!attackedCreature || (isSummon() && attackedCreature == this))
return;
bool updateLook = true;
bool outOfRange = true;
resetTicks = interval != 0;
attackTicks += interval;
const Position& myPos = getPosition();
const Position& targetPos = attackedCreature->getPosition();
for(SpellList::iterator it = mType->spellAttackList.begin(); it != mType->spellAttackList.end(); ++it)
{
bool inRange = false;
if(canUseSpell(myPos, targetPos, *it, interval, inRange))
{
if(it->chance >= (uint32_t)random_range(1, 100))
{
if(updateLook)
{
updateLookDirection();
updateLook = false;
}
minCombatValue = it->minCombatValue;
maxCombatValue = it->maxCombatValue;
it->spell->castSpell(this, attackedCreature);
if(it->isMelee)
extraMeleeAttack = false;
#ifdef __DEBUG__
static uint64_t prevTicks = OTSYS_TIME();
std::clog << "doAttacking ticks: " << OTSYS_TIME() - prevTicks << std::endl;
prevTicks = OTSYS_TIME();
#endif
}
}
if(inRange)
outOfRange = false;
else if(it->isMelee)
{
//melee swing out of reach
extraMeleeAttack = true;
}
}
if(updateLook)
updateLookDirection();
if(resetTicks)
attackTicks = 0;
}
bool Monster::canUseAttack(const Position& pos, const Creature* target) const
{
if(isHostile())
{
const Position& targetPos = target->getPosition();
for(SpellList::iterator it = mType->spellAttackList.begin(); it != mType->spellAttackList.end(); ++it)
{
if((*it).range != 0 && std::max<uint32_t>(std::abs(pos.x - targetPos.x), std::abs(pos.y - targetPos.y)) <= (int32_t)(*it).range)
return g_game.isSightClear(pos, targetPos, true);
}
return false;
}
return true;
}
bool Monster::canUseSpell(const Position& pos, const Position& targetPos,
const spellBlock_t& sb, uint32_t interval, bool& inRange)
{
inRange = true;
if(!sb.isMelee || !extraMeleeAttack)
{
if(sb.speed > attackTicks)
{
resetTicks = false;
return false;
}
if(attackTicks % sb.speed >= interval)
{
//already used this spell for this round
return false;
}
}
if(sb.range != 0 && std::max<uint32_t>(std::abs(pos.x - targetPos.x), std::abs(pos.y - targetPos.y)) > (int32_t)sb.range)
{
inRange = false;
return false;
}
return true;
}
void Monster::onThinkTarget(uint32_t interval)
{
if(!isSummon())
{
if(mType->changeTargetSpeed > 0)
{
bool canChangeTarget = true;
if(targetChangeCooldown > 0)
{
targetChangeCooldown -= interval;
if(targetChangeCooldown <= 0)
{
targetChangeCooldown = 0;
targetChangeTicks = (uint32_t)mType->changeTargetSpeed;
}
else
canChangeTarget = false;
}
if(canChangeTarget)
{
targetChangeTicks += interval;
if(targetChangeTicks >= (uint32_t)mType->changeTargetSpeed)
{
targetChangeTicks = 0;
targetChangeCooldown = (uint32_t)mType->changeTargetSpeed;
if(mType->changeTargetChance >= random_range(1, 100))
searchTarget(TARGETSEARCH_RANDOM);
}
}
}
}
}
void Monster::onThinkDefense(uint32_t interval)
{
resetTicks = true;
defenseTicks += interval;
for(SpellList::iterator it = mType->spellDefenseList.begin(); it != mType->spellDefenseList.end(); ++it)
{
if(it->speed > defenseTicks)
{
resetTicks = false;
continue;
}
if(defenseTicks % it->speed >= interval)
{
//already used this spell for this round
continue;
}
if((it->chance >= (uint32_t)random_range(1, 100)))
{
minCombatValue = it->minCombatValue;
maxCombatValue = it->maxCombatValue;
it->spell->castSpell(this, this);
}
}
if(!isSummon() && (int32_t)summons.size() < mType->maxSummons)
{
for(SummonList::iterator it = mType->summonList.begin(); it != mType->summonList.end(); ++it)
{
if(it->speed > defenseTicks)
{
resetTicks = false;
continue;
}
if((int32_t)summons.size() >= mType->maxSummons)
continue;
if(defenseTicks % it->speed >= interval)
{
//already used this spell for this round
continue;
}
if((it->chance >= (uint32_t)random_range(1, 100)))
{
Monster* summon = Monster::createMonster(it->name);
if(summon)
{
const Position& summonPos = getPosition();
addSummon(summon);
if(!g_game.placeCreature(summon, summonPos))
removeSummon(summon);
else
g_game.addMagicEffect(getPosition(), NM_ME_MAGIC_ENERGY);
}
}
}
}
if(resetTicks)
defenseTicks = 0;
}
void Monster::onThinkYell(uint32_t interval)
{
if(mType->yellSpeedTicks > 0)
{
yellTicks += interval;
if(yellTicks >= mType->yellSpeedTicks)
{
yellTicks = 0;
if(!mType->voiceVector.empty() && (mType->yellChance >= (uint32_t)random_range(1, 100)))
{
uint32_t index = random_range(0, mType->voiceVector.size() - 1);
const voiceBlock_t& vb = mType->voiceVector[index];
if(vb.yellText)
g_game.internalCreatureSay(this, SPEAK_MONSTER_YELL, vb.text);
else
g_game.internalCreatureSay(this, SPEAK_MONSTER_SAY, vb.text);
}
}
}
}
void Monster::onWalk()
{
Creature::onWalk();
}
bool Monster::pushItem(Item* item, int32_t radius)
{
const Position& centerPos = item->getPosition();
typedef std::pair<int32_t, int32_t> relPair;
std::vector<relPair> relList;
relList.push_back(relPair(-1, -1));
relList.push_back(relPair(-1, 0));
relList.push_back(relPair(-1, 1));
relList.push_back(relPair(0, -1));
relList.push_back(relPair(0, 1));
relList.push_back(relPair(1, -1));
relList.push_back(relPair(1, 0));
relList.push_back(relPair(1, 1));
std::random_shuffle(relList.begin(), relList.end());
Position tryPos;
for(int32_t n = 1; n <= radius; ++n)
{
for(std::vector<relPair>::iterator it = relList.begin(); it != relList.end(); ++it)
{
int32_t dx = it->first * n;
int32_t dy = it->second * n;
tryPos = centerPos;
tryPos.x = tryPos.x + dx;
tryPos.y = tryPos.y + dy;
Tile* tile = g_game.getTile(tryPos.x, tryPos.y, tryPos.z);
if(tile && g_game.canThrowObjectTo(centerPos, tryPos))
{
if(g_game.internalMoveItem(item->getParent(), tile,
INDEX_WHEREEVER, item, item->getItemCount(), NULL) == RET_NOERROR)
{
return true;
}
}
}
}
return false;
}
void Monster::pushItems(Tile* tile)
{
uint32_t moveCount = 0;
uint32_t removeCount = 0;
//We can not use iterators here since we can push the item to another tile
//which will invalidate the iterator.
//start from the end to minimize the amount of traffic
int32_t downItemSize = tile->downItems.size();
for(int32_t i = downItemSize - 1; i >= 0; --i)
{
assert(i >= 0 && i < (int32_t)tile->downItems.size());
Item* item = tile->downItems[i];
if(item && item->hasProperty(MOVEABLE) && (item->hasProperty(BLOCKPATH)
|| item->hasProperty(BLOCKSOLID)))
{
if(moveCount < 20 && pushItem(item, 1))
moveCount++;
else if(g_game.internalRemoveItem(item) == RET_NOERROR)
++removeCount;
}
}
if(removeCount > 0)
g_game.addMagicEffect(tile->getPosition(), NM_ME_POFF);
}
bool Monster::pushCreature(Creature* creature)
{
Position monsterPos = creature->getPosition();
std::vector<Direction> dirList;
dirList.push_back(NORTH);
dirList.push_back(SOUTH);
dirList.push_back(WEST);
dirList.push_back(EAST);
std::random_shuffle(dirList.begin(), dirList.end());
for(std::vector<Direction>::iterator it = dirList.begin(); it != dirList.end(); ++it)
{
const Position& tryPos = Spells::getCasterPosition(creature, *it);
Tile* toTile = g_game.getTile(tryPos.x, tryPos.y, tryPos.z);
if(toTile && !toTile->hasProperty(BLOCKPATH))
{
if(g_game.internalMoveCreature(creature, *it) == RET_NOERROR)
return true;
}
}
return false;
}
void Monster::pushCreatures(Tile* tile)
{
uint32_t removeCount = 0;
//We can not use iterators here since we can push a creature to another tile
//which will invalidate the iterator.
for(uint32_t i = 0; i < tile->creatures.size();)
{
Monster* monster = tile->creatures[i]->getMonster();
if(monster && monster->isPushable())
{
if(pushCreature(monster))
continue;
else
{
monster->changeHealth(-monster->getHealth());
monster->setDropLoot(false);
removeCount++;
}
}
++i;
}
if(removeCount > 0)
g_game.addMagicEffect(tile->getPosition(), NM_ME_BLOCKHIT);
}
bool Monster::getNextStep(Direction& dir)
{
if(!isActivated || getHealth() <= 0)
{
//we dont have anyone watching might aswell stop walking
eventWalk = 0;
return false;
}
bool result = false;
if((!followCreature || !hasFollowPath) && !isSummon())
{
if(followCreature || getTimeSinceLastMove() > 1000)
{
//choose a random direction
result = getRandomStep(getPosition(), dir);
}
}
else if(isSummon() || followCreature)
{
result = Creature::getNextStep(dir);
if(!result)
{
//target dancing
if(attackedCreature && attackedCreature == followCreature)
{
if(isFleeing())
result = getDanceStep(getPosition(), dir, false, false);
else if(mType->staticAttackChance < (uint32_t)random_range(1, 100))
result = getDanceStep(getPosition(), dir);
}
}
}
if(result && (canPushItems() || canPushCreatures()))
{
const Position& pos = Spells::getCasterPosition(this, dir);