void AiCombatStorage::startAttackIfReady(const MWWorld::Ptr& actor, CharacterController& characterController,
const ESM::Weapon* weapon, bool distantCombat)
{
if (mReadyToAttack && characterController.readyToStartAttack())
{
if (mAttackCooldown <= 0)
{
mAttack = true; // attack starts just now
characterController.setAttackingOrSpell(true);
if (!distantCombat)
characterController.setAIAttackType(chooseBestAttack(weapon));
mStrength = Misc::Rng::rollClosedProbability();
const MWWorld::ESMStore &store = MWBase::Environment::get().getWorld()->getStore();
float baseDelay = store.get<ESM::GameSetting>().find("fCombatDelayCreature")->mValue.getFloat();
if (actor.getClass().isNpc())
{
baseDelay = store.get<ESM::GameSetting>().find("fCombatDelayNPC")->mValue.getFloat();
//say a provoking combat phrase
int chance = store.get<ESM::GameSetting>().find("iVoiceAttackOdds")->mValue.getInteger();
if (Misc::Rng::roll0to99() < chance)
{
MWBase::Environment::get().getDialogueManager()->say(actor, "attack");
}
}
mAttackCooldown = std::min(baseDelay + 0.01 * Misc::Rng::roll0to99(), baseDelay + 0.9);
}
else
mAttackCooldown -= AI_REACTION_TIME;
}
}
bool AiCombat::execute (const MWWorld::Ptr& actor,float duration)
{
//General description
if(!actor.getClass().getCreatureStats(actor).isHostile()
|| actor.getClass().getCreatureStats(actor).getHealth().getCurrent() <= 0)
return true;
if(mTarget.getClass().getCreatureStats(mTarget).isDead())
return true;
//Update every frame
if(mCombatMove)
{
mTimerCombatMove -= duration;
if( mTimerCombatMove <= 0)
{
mTimerCombatMove = 0;
mMovement.mPosition[1] = mMovement.mPosition[0] = 0;
mCombatMove = false;
}
}
actor.getClass().getMovementSettings(actor) = mMovement;
if (mRotate)
{
if (zTurn(actor, Ogre::Degree(mTargetAngle)))
mRotate = false;
}
mTimerAttack -= duration;
actor.getClass().getCreatureStats(actor).setAttackingOrSpell(mStrike);
float tReaction = 0.25f;
if(mTimerReact < tReaction)
{
mTimerReact += duration;
return false;
}
//Update with period = tReaction
mTimerReact = 0;
//actual attacking logic
//TODO: Some skills affect period of strikes.For berserk-like style period ~ 0.25f
float attackPeriod = 1.0f;
if(mReadyToAttack)
{
if(mTimerAttack <= -attackPeriod)
{
//TODO: should depend on time between 'start' to 'min attack'
//for better controlling of NPCs' attack strength.
//Also it seems that this time is different for slash/thrust/chop
mTimerAttack = 0.35f * static_cast<float>(rand())/RAND_MAX;
mStrike = true;
//say a provoking combat phrase
if (actor.getClass().isNpc())
{
const MWWorld::ESMStore &store = MWBase::Environment::get().getWorld()->getStore();
int chance = store.get<ESM::GameSetting>().find("iVoiceAttackOdds")->getInt();
int roll = std::rand()/ (static_cast<double> (RAND_MAX) + 1) * 100; // [0, 99]
if (roll < chance)
{
MWBase::Environment::get().getDialogueManager()->say(actor, "attack");
}
}
}
else if (mTimerAttack <= 0)
mStrike = false;
}
else
{
mTimerAttack = -attackPeriod;
mStrike = false;
}
const MWWorld::Class &cls = actor.getClass();
const ESM::Weapon *weapon = NULL;
MWMechanics::WeaponType weaptype;
float weapRange, weapSpeed = 1.0f;
actor.getClass().getCreatureStats(actor).setMovementFlag(CreatureStats::Flag_Run, true);
if (actor.getClass().hasInventoryStore(actor))
{
MWMechanics::DrawState_ state = actor.getClass().getCreatureStats(actor).getDrawState();
if (state == MWMechanics::DrawState_Spell || state == MWMechanics::DrawState_Nothing)
actor.getClass().getCreatureStats(actor).setDrawState(MWMechanics::DrawState_Weapon);
//Get weapon speed and range
MWWorld::ContainerStoreIterator weaponSlot =
MWMechanics::getActiveWeapon(cls.getCreatureStats(actor), cls.getInventoryStore(actor), &weaptype);
if (weaptype == WeapType_HandToHand)
{
const MWWorld::Store<ESM::GameSetting> &gmst =
MWBase::Environment::get().getWorld()->getStore().get<ESM::GameSetting>();
weapRange = gmst.find("fHandToHandReach")->getFloat();
}
else
{
weapon = weaponSlot->get<ESM::Weapon>()->mBase;
weapRange = weapon->mData.mReach;
weapSpeed = weapon->mData.mSpeed;
}
weapRange *= 100.0f;
}
else //is creature
{
weaptype = WeapType_HandToHand; //doesn't matter, should only reflect if it is melee or distant weapon
weapRange = 150; //TODO: use true attack range (the same problem in Creature::hit)
}
ESM::Position pos = actor.getRefData().getPosition();
float rangeMelee;
float rangeCloseUp;
bool distantCombat = false;
if (weaptype==WeapType_BowAndArrow || weaptype==WeapType_Crossbow || weaptype==WeapType_Thrown)
{
rangeMelee = 1000; // TODO: should depend on archer skill
rangeCloseUp = 0; //doesn't needed when attacking from distance
distantCombat = true;
}
else
{
rangeMelee = weapRange;
rangeCloseUp = 300;
}
Ogre::Vector3 vStart(pos.pos[0], pos.pos[1], pos.pos[2]);
ESM::Position targetPos = mTarget.getRefData().getPosition();
Ogre::Vector3 vDest(targetPos.pos[0], targetPos.pos[1], targetPos.pos[2]);
Ogre::Vector3 vDir = vDest - vStart;
float distBetween = vDir.length();
if(distBetween < rangeMelee || (distBetween <= rangeCloseUp && mFollowTarget) )
{
//Melee and Close-up combat
vDir.z = 0;
float dirLen = vDir.length();
mTargetAngle = Ogre::Radian( Ogre::Math::ACos(vDir.y / dirLen) * sgn(Ogre::Math::ASin(vDir.x / dirLen)) ).valueDegrees();
mRotate = true;
//bool LOS = MWBase::Environment::get().getWorld()->getLOS(actor, mTarget);
if (mFollowTarget && distBetween > rangeMelee)
{
//Close-up combat: just run up on target
mMovement.mPosition[1] = 1;
}
else
{
//Melee: stop running and attack
mMovement.mPosition[1] = 0;
// When attacking with a weapon, choose between slash, thrust or chop
if (actor.getClass().hasInventoryStore(actor))
chooseBestAttack(weapon, mMovement);
if(mMovement.mPosition[0] || mMovement.mPosition[1])
{
mTimerCombatMove = 0.1f + 0.1f * static_cast<float>(rand())/RAND_MAX;
mCombatMove = true;
}
else if(actor.getClass().isNpc() && (!distantCombat || (distantCombat && rangeMelee/5)))
{
//apply sideway movement (kind of dodging) with some probability
if(static_cast<float>(rand())/RAND_MAX < 0.25)
{
mMovement.mPosition[0] = static_cast<float>(rand())/RAND_MAX < 0.5? 1: -1;
mTimerCombatMove = 0.05f + 0.15f * static_cast<float>(rand())/RAND_MAX;
mCombatMove = true;
}
}
if(distantCombat && distBetween < rangeMelee/4)
{
mMovement.mPosition[1] = -1;
}
mReadyToAttack = true;
//only once got in melee combat, actor is allowed to use close-up shortcutting
mFollowTarget = true;
}
}
else
{
//target is at far distance: build path to target OR follow target (if previously actor had reached it once)
mFollowTarget = false;
buildNewPath(actor); //may fail to build a path, check before use
//delete visited path node
mPathFinder.checkPathCompleted(pos.pos[0],pos.pos[1],pos.pos[2]);
//if no new path leave mTargetAngle unchanged
if(!mPathFinder.getPath().empty())
{
//try shortcut
if(vDir.length() < mPathFinder.getDistToNext(pos.pos[0],pos.pos[1],pos.pos[2]) && MWBase::Environment::get().getWorld()->getLOS(actor, mTarget))
mTargetAngle = Ogre::Radian( Ogre::Math::ACos(vDir.y / vDir.length()) * sgn(Ogre::Math::ASin(vDir.x / vDir.length())) ).valueDegrees();
else
mTargetAngle = mPathFinder.getZAngleToNext(pos.pos[0], pos.pos[1]);
mRotate = true;
}
mMovement.mPosition[1] = 1;
mReadyToAttack = false;
}
if(distBetween > rangeMelee)
{
//special run attack; it shouldn't affect melee combat tactics
if(actor.getClass().getMovementSettings(actor).mPosition[1] == 1)
{
//check if actor can overcome the distance = distToTarget - attackerWeapRange
//less than in time of playing weapon anim from 'start' to 'hit' tags (t_swing)
//then start attacking
float speed1 = cls.getSpeed(actor);
float speed2 = mTarget.getClass().getSpeed(mTarget);
if(mTarget.getClass().getMovementSettings(mTarget).mPosition[0] == 0
&& mTarget.getClass().getMovementSettings(mTarget).mPosition[1] == 0)
speed2 = 0;
float s1 = distBetween - weapRange;
float t = s1/speed1;
float s2 = speed2 * t;
float t_swing = 0.17f/weapSpeed;//instead of 0.17 should be the time of playing weapon anim from 'start' to 'hit' tags
if (t + s2/speed1 <= t_swing)
{
mReadyToAttack = true;
if(mTimerAttack <= -attackPeriod)
{
mTimerAttack = 0.3f*static_cast<float>(rand())/RAND_MAX;
mStrike = true;
}
}
}
}
actor.getClass().getMovementSettings(actor) = mMovement;
return false;
}
/*
* Current AiCombat movement states (as of 0.29.0), ignoring the details of the
* attack states such as CombatMove, Strike and ReadyToAttack:
*
* +----(within strike range)----->attack--(beyond strike range)-->follow
* | | ^ | |
* | | | | |
* pursue<---(beyond follow range)-----+ +----(within strike range)---+ |
* ^ |
* | |
* +-------------------------(beyond follow range)--------------------+
*
*
* Below diagram is high level only, the code detail is a little different
* (but including those detail will just complicate the diagram w/o adding much)
*
* +----------(same)-------------->attack---------(same)---------->follow
* | |^^ |||
* | ||| |||
* | +--(same)-----------------+|+----------(same)------------+||
* | | | ||
* | | | (in range) ||
* | <---+ (too far) | ||
* pursue<-------------------------[door open]<-----+ ||
* ^^^ | ||
* ||| | ||
* ||+----------evade-----+ | ||
* || | [closed door] | ||
* |+----> maybe stuck, check --------------> back up, check door ||
* | ^ | ^ | ^ ||
* | | | | | | ||
* | | +---+ +---+ ||
* | +-------------------------------------------------------+|
* | |
* +---------------------------(same)---------------------------------+
*
* FIXME:
*
* The new scheme is way too complicated, should really be implemented as a
* proper state machine.
*
* TODO:
*
* Use the Observer Pattern to co-ordinate attacks, provide intelligence on
* whether the target was hit, etc.
*/
bool AiCombat::execute (const MWWorld::Ptr& actor, AiState& state, float duration)
{
// get or create temporary storage
AiCombatStorage& storage = state.get<AiCombatStorage>();
//General description
if(actor.getClass().getCreatureStats(actor).isDead())
return true;
MWWorld::Ptr target = MWBase::Environment::get().getWorld()->searchPtrViaActorId(mTargetActorId);
if (target.isEmpty())
return false;
if(!target.getRefData().getCount() || !target.getRefData().isEnabled() // Really we should be checking whether the target is currently registered
// with the MechanicsManager
|| target.getClass().getCreatureStats(target).isDead())
return true;
const MWWorld::Class& actorClass = actor.getClass();
MWBase::World* world = MWBase::Environment::get().getWorld();
//Update every frame
bool& combatMove = storage.mCombatMove;
float& timerCombatMove = storage.mTimerCombatMove;
MWMechanics::Movement& movement = storage.mMovement;
if(combatMove)
{
timerCombatMove -= duration;
if( timerCombatMove <= 0)
{
timerCombatMove = 0;
movement.mPosition[1] = movement.mPosition[0] = 0;
combatMove = false;
}
}
actorClass.getMovementSettings(actor) = movement;
actorClass.getMovementSettings(actor).mRotation[0] = 0;
actorClass.getMovementSettings(actor).mRotation[2] = 0;
if(movement.mRotation[2] != 0)
{
if(zTurn(actor, Ogre::Degree(movement.mRotation[2]))) movement.mRotation[2] = 0;
}
if(movement.mRotation[0] != 0)
{
if(smoothTurn(actor, Ogre::Degree(movement.mRotation[0]), 0)) movement.mRotation[0] = 0;
}
//TODO: Some skills affect period of strikes.For berserk-like style period ~ 0.25f
float attacksPeriod = 1.0f;
ESM::Weapon::AttackType attackType;
bool& attack = storage.mAttack;
bool& readyToAttack = storage.mReadyToAttack;
float& timerAttack = storage.mTimerAttack;
bool& minMaxAttackDurationInitialised = storage.mMinMaxAttackDurationInitialised;
float (&minMaxAttackDuration)[3][2] = storage.mMinMaxAttackDuration;
if(readyToAttack)
{
if (!minMaxAttackDurationInitialised)
{
// TODO: this must be updated when a different weapon is equipped
getMinMaxAttackDuration(actor, minMaxAttackDuration);
minMaxAttackDurationInitialised = true;
}
if (timerAttack < 0) attack = false;
timerAttack -= duration;
}
else
{
timerAttack = -attacksPeriod;
attack = false;
}
actorClass.getCreatureStats(actor).setAttackingOrSpell(attack);
float& actionCooldown = storage.mActionCooldown;
actionCooldown -= duration;
float& timerReact = storage.mTimerReact;
float tReaction = 0.25f;
if(timerReact < tReaction)
{
timerReact += duration;
return false;
}
//Update with period = tReaction
// Stop attacking if target is not seen
if (target.getClass().getCreatureStats(target).getMagicEffects().get(ESM::MagicEffect::Invisibility).getMagnitude() > 0
|| target.getClass().getCreatureStats(target).getMagicEffects().get(ESM::MagicEffect::Chameleon).getMagnitude() > 75)
{
movement.mPosition[1] = movement.mPosition[0] = 0;
return false; // TODO: run away instead of doing nothing
}
timerReact = 0;
const MWWorld::CellStore*& currentCell = storage.mCell;
bool cellChange = currentCell && (actor.getCell() != currentCell);
if(!currentCell || cellChange)
{
currentCell = actor.getCell();
}
MWRender::Animation* anim = MWBase::Environment::get().getWorld()->getAnimation(actor);
if (!anim) // shouldn't happen
return false;
actorClass.getCreatureStats(actor).setMovementFlag(CreatureStats::Flag_Run, true);
if (actionCooldown > 0)
return false;
float rangeAttack = 0;
float rangeFollow = 0;
boost::shared_ptr<Action>& currentAction = storage.mCurrentAction;
if (anim->upperBodyReady())
{
currentAction = prepareNextAction(actor, target);
actionCooldown = currentAction->getActionCooldown();
}
if (currentAction.get())
currentAction->getCombatRange(rangeAttack, rangeFollow);
// FIXME: consider moving this stuff to ActionWeapon::getCombatRange
const ESM::Weapon *weapon = NULL;
MWMechanics::WeaponType weaptype = WeapType_None;
float weapRange = 1.0f;
// Get weapon characteristics
if (actorClass.hasInventoryStore(actor))
{
// TODO: Check equipped weapon and equip a different one if we can't attack with it
// (e.g. no ammunition, or wrong type of ammunition equipped, etc. autoEquip is not very smart in this regard))
//Get weapon speed and range
MWWorld::ContainerStoreIterator weaponSlot =
MWMechanics::getActiveWeapon(actorClass.getCreatureStats(actor), actorClass.getInventoryStore(actor), &weaptype);
if (weaptype == WeapType_HandToHand)
{
static float fHandToHandReach =
world->getStore().get<ESM::GameSetting>().find("fHandToHandReach")->getFloat();
weapRange = fHandToHandReach;
}
else if (weaptype != WeapType_PickProbe && weaptype != WeapType_Spell && weaptype != WeapType_None)
{
// All other WeapTypes are actually weapons, so get<ESM::Weapon> is safe.
weapon = weaponSlot->get<ESM::Weapon>()->mBase;
weapRange = weapon->mData.mReach;
}
weapRange *= 100.0f;
}
else //is creature
{
weaptype = actorClass.getCreatureStats(actor).getDrawState() == DrawState_Spell ? WeapType_Spell : WeapType_HandToHand;
weapRange = 150.0f; //TODO: use true attack range (the same problem in Creature::hit)
}
bool distantCombat = false;
if (weaptype != WeapType_Spell)
{
// TODO: move to ActionWeapon
if (weaptype == WeapType_BowAndArrow || weaptype == WeapType_Crossbow || weaptype == WeapType_Thrown)
{
rangeAttack = 1000;
rangeFollow = 0; // not needed in ranged combat
distantCombat = true;
}
else
{
rangeAttack = weapRange;
rangeFollow = 300;
}
}
else
{
distantCombat = (rangeAttack > 500);
weapRange = 150.f;
}
float& strength = storage.mStrength;
// start new attack
if(readyToAttack)
{
if(timerAttack <= -attacksPeriod)
{
attack = true; // attack starts just now
if (!distantCombat) attackType = chooseBestAttack(weapon, movement);
else attackType = ESM::Weapon::AT_Chop; // cause it's =0
strength = OEngine::Misc::Rng::rollClosedProbability();
// Note: may be 0 for some animations
timerAttack = minMaxAttackDuration[attackType][0] +
(minMaxAttackDuration[attackType][1] - minMaxAttackDuration[attackType][0]) * strength;
//say a provoking combat phrase
if (actor.getClass().isNpc())
{
const MWWorld::ESMStore &store = world->getStore();
int chance = store.get<ESM::GameSetting>().find("iVoiceAttackOdds")->getInt();
if (OEngine::Misc::Rng::roll0to99() < chance)
{
MWBase::Environment::get().getDialogueManager()->say(actor, "attack");
}
}
}
}
/*
* Some notes on meanings of variables:
*
* rangeAttack:
*
* - Distance where attack using the actor's weapon is possible:
* longer for ranged weapons (obviously?) vs. melee weapons
* - Determined by weapon's reach parameter; hardcoded value
* for ranged weapon and for creatures
* - Once within this distance mFollowTarget is triggered
*
* rangeFollow:
*
* - Applies to melee weapons or hand to hand only (or creatures without
* weapons)
* - Distance a little further away than the actor's weapon reach
* i.e. rangeFollow > rangeAttack for melee weapons
* - Hardcoded value (0 for ranged weapons)
* - Once the target gets beyond this distance mFollowTarget is cleared
* and a path to the target needs to be found
*
* mFollowTarget:
*
* - Once triggered, the actor follows the target with LOS shortcut
* (the shortcut really only applies to cells where pathgrids are
* available, since the default path without pathgrids is direct to
* target even if LOS is not achieved)
*/
ESM::Position pos = actor.getRefData().getPosition();
Ogre::Vector3 vActorPos(pos.pos);
Ogre::Vector3 vTargetPos(target.getRefData().getPosition().pos);
Ogre::Vector3 vDirToTarget = vTargetPos - vActorPos;
float distToTarget = vDirToTarget.length();
Ogre::Vector3& lastActorPos = storage.mLastActorPos;
bool& followTarget = storage.mFollowTarget;
bool isStuck = false;
float speed = 0.0f;
if(movement.mPosition[1] && (lastActorPos - vActorPos).length() < (speed = actorClass.getSpeed(actor)) * tReaction / 2)
isStuck = true;
lastActorPos = vActorPos;
// check if actor can move along z-axis
bool canMoveByZ = (actorClass.canSwim(actor) && world->isSwimming(actor))
|| world->isFlying(actor);
// for distant combat we should know if target is in LOS even if distToTarget < rangeAttack
bool inLOS = distantCombat ? world->getLOS(actor, target) : true;
// can't fight if attacker can't go where target is. E.g. A fish can't attack person on land.
if (distToTarget >= rangeAttack
&& !actorClass.isNpc() && !MWMechanics::isEnvironmentCompatible(actor, target))
{
// TODO: start fleeing?
movement.mPosition[0] = 0;
movement.mPosition[1] = 0;
movement.mPosition[2] = 0;
readyToAttack = false;
actorClass.getCreatureStats(actor).setAttackingOrSpell(false);
return false;
}
// (within attack dist) || (not quite attack dist while following)
if(inLOS && (distToTarget < rangeAttack || (distToTarget <= rangeFollow && followTarget && !isStuck)))
{
//Melee and Close-up combat
// getXAngleToDir determines vertical angle to target:
// if actor can move along z-axis it will control movement dir
// if can't - it will control correct aiming.
// note: in getZAngleToDir if we preserve dir.z then horizontal angle can be inaccurate
if (distantCombat)
{
Ogre::Vector3& lastTargetPos = storage.mLastTargetPos;
Ogre::Vector3 vAimDir = AimDirToMovingTarget(actor, target, lastTargetPos, tReaction, weaptype, strength);
lastTargetPos = vTargetPos;
movement.mRotation[0] = getXAngleToDir(vAimDir);
movement.mRotation[2] = getZAngleToDir(vAimDir);
}
else
{
movement.mRotation[0] = getXAngleToDir(vDirToTarget, distToTarget);
movement.mRotation[2] = getZAngleToDir(vDirToTarget);
}
// (not quite attack dist while following)
if (followTarget && distToTarget > rangeAttack)
{
//Close-up combat: just run up on target
movement.mPosition[1] = 1;
}
else // (within attack dist)
{
if(movement.mPosition[0] || movement.mPosition[1])
{
timerCombatMove = 0.1f + 0.1f * OEngine::Misc::Rng::rollClosedProbability();
combatMove = true;
}
// only NPCs are smart enough to use dodge movements
else if(actorClass.isNpc() && (!distantCombat || (distantCombat && distToTarget < rangeAttack/2)))
{
//apply sideway movement (kind of dodging) with some probability
if (OEngine::Misc::Rng::rollClosedProbability() < 0.25)
{
movement.mPosition[0] = OEngine::Misc::Rng::rollProbability() < 0.5 ? 1.0f : -1.0f;
timerCombatMove = 0.05f + 0.15f * OEngine::Misc::Rng::rollClosedProbability();
combatMove = true;
}
}
if(distantCombat && distToTarget < rangeAttack/4)
{
movement.mPosition[1] = -1;
}
readyToAttack = true;
//only once got in melee combat, actor is allowed to use close-up shortcutting
followTarget = true;
}
}
else // remote pathfinding
{
bool preferShortcut = false;
if (!distantCombat) inLOS = world->getLOS(actor, target);
// check if shortcut is available
bool& forceNoShortcut = storage.mForceNoShortcut;
ESM::Position& shortcutFailPos = storage.mShortcutFailPos;
if(inLOS && (!isStuck || readyToAttack)
&& (!forceNoShortcut || (Ogre::Vector3(shortcutFailPos.pos) - vActorPos).length() >= PATHFIND_SHORTCUT_RETRY_DIST))
{
if(speed == 0.0f) speed = actorClass.getSpeed(actor);
// maximum dist before pit/obstacle for actor to avoid them depending on his speed
float maxAvoidDist = tReaction * speed + speed / MAX_VEL_ANGULAR.valueRadians() * 2; // *2 - for reliability
preferShortcut = checkWayIsClear(vActorPos, vTargetPos, Ogre::Vector3(vDirToTarget.x, vDirToTarget.y, 0).length() > maxAvoidDist*1.5? maxAvoidDist : maxAvoidDist/2);
}
// don't use pathgrid when actor can move in 3 dimensions
if(canMoveByZ) preferShortcut = true;
if(preferShortcut)
{
if (canMoveByZ)
movement.mRotation[0] = getXAngleToDir(vDirToTarget, distToTarget);
movement.mRotation[2] = getZAngleToDir(vDirToTarget);
forceNoShortcut = false;
shortcutFailPos.pos[0] = shortcutFailPos.pos[1] = shortcutFailPos.pos[2] = 0;
mPathFinder.clearPath();
}
else // if shortcut failed stick to path grid
{
if(!isStuck && shortcutFailPos.pos[0] == 0.0f && shortcutFailPos.pos[1] == 0.0f && shortcutFailPos.pos[2] == 0.0f)
{
forceNoShortcut = true;
shortcutFailPos = pos;
}
followTarget = false;
buildNewPath(actor, target); //may fail to build a path, check before use
//delete visited path node
mPathFinder.checkPathCompleted(pos.pos[0],pos.pos[1]);
// This works on the borders between the path grid and areas with no waypoints.
if(inLOS && mPathFinder.getPath().size() > 1)
{
// get point just before target
std::list<ESM::Pathgrid::Point>::const_iterator pntIter = --mPathFinder.getPath().end();
--pntIter;
Ogre::Vector3 vBeforeTarget(PathFinder::MakeOgreVector3(*pntIter));
// if current actor pos is closer to target then last point of path (excluding target itself) then go straight on target
if(distToTarget <= (vTargetPos - vBeforeTarget).length())
{
movement.mRotation[2] = getZAngleToDir(vDirToTarget);
preferShortcut = true;
}
}
// if there is no new path, then go straight on target
if(!preferShortcut)
{
if(!mPathFinder.getPath().empty())
movement.mRotation[2] = mPathFinder.getZAngleToNext(pos.pos[0], pos.pos[1]);
else
movement.mRotation[2] = getZAngleToDir(vDirToTarget);
}
}
movement.mPosition[1] = 1;
if (readyToAttack)
{
// to stop possible sideway moving after target moved out of attack range
combatMove = true;
timerCombatMove = 0;
}
readyToAttack = false;
}
if(!isStuck && distToTarget > rangeAttack && !distantCombat)
{
//special run attack; it shouldn't affect melee combat tactics
if(actorClass.getMovementSettings(actor).mPosition[1] == 1)
{
/* check if actor can overcome the distance = distToTarget - attackerWeapRange
less than in time of swinging with weapon (t_swing), then start attacking
*/
float speed1 = actorClass.getSpeed(actor);
float speed2 = target.getClass().getSpeed(target);
if(target.getClass().getMovementSettings(target).mPosition[0] == 0
&& target.getClass().getMovementSettings(target).mPosition[1] == 0)
speed2 = 0;
float s1 = distToTarget - weapRange;
float t = s1/speed1;
float s2 = speed2 * t;
float t_swing =
minMaxAttackDuration[ESM::Weapon::AT_Thrust][0] +
(minMaxAttackDuration[ESM::Weapon::AT_Thrust][1] - minMaxAttackDuration[ESM::Weapon::AT_Thrust][0]) * OEngine::Misc::Rng::rollClosedProbability();
if (t + s2/speed1 <= t_swing)
{
readyToAttack = true;
if(timerAttack <= -attacksPeriod)
{
timerAttack = t_swing;
attack = true;
}
}
}
}
// NOTE: This section gets updated every tReaction, which is currently hard
// coded at 250ms or 1/4 second
//
// TODO: Add a parameter to vary DURATION_SAME_SPOT?
if((distToTarget > rangeAttack || followTarget) &&
mObstacleCheck.check(actor, tReaction)) // check if evasive action needed
{
// probably walking into another NPC TODO: untested in combat situation
// TODO: diagonal should have same animation as walk forward
// but doesn't seem to do that?
actor.getClass().getMovementSettings(actor).mPosition[0] = 1;
actor.getClass().getMovementSettings(actor).mPosition[1] = 0.1f;
// change the angle a bit, too
if(mPathFinder.isPathConstructed())
zTurn(actor, Ogre::Degree(mPathFinder.getZAngleToNext(pos.pos[0] + 1, pos.pos[1])));
if(followTarget)
followTarget = false;
// FIXME: can fool actors to stay behind doors, etc.
// Related to Bug#1102 and to some degree #1155 as well
}
return false;
}
