#include "aiwander.hpp"
#include <OgreVector3.h>
#include <OgreSceneNode.h>
#include <components/esm/aisequence.hpp>
#include "../mwbase/world.hpp"
#include "../mwbase/environment.hpp"
#include "../mwbase/mechanicsmanager.hpp"
#include "../mwbase/dialoguemanager.hpp"
#include "../mwbase/soundmanager.hpp"
#include "../mwworld/class.hpp"
#include "../mwworld/esmstore.hpp"
#include "../mwworld/cellstore.hpp"
#include "creaturestats.hpp"
#include "steering.hpp"
#include "movement.hpp"
namespace MWMechanics
{
static const int COUNT_BEFORE_RESET = 200; // TODO: maybe no longer needed
static const float DOOR_CHECK_INTERVAL = 1.5f;
static const float REACTION_INTERVAL = 0.25f;
static const int GREETING_SHOULD_START = 4; //how many reaction intervals should pass before NPC can greet player
static const int GREETING_SHOULD_END = 10;
/// \brief This class holds the variables AiWander needs which are deleted if the package becomes inactive.
struct AiWanderStorage : AiTemporaryBase
{
// the z rotation angle (degrees) we want to reach
// used every frame when mRotate is true
Ogre::Radian mTargetAngle;
bool mRotate;
float mReaction; // update some actions infrequently
AiWander::GreetingState mSaidGreeting;
int mGreetingTimer;
const MWWorld::CellStore* mCell; // for detecting cell change
// AiWander states
bool mChooseAction;
bool mIdleNow;
bool mMoveNow;
bool mWalking;
unsigned short mPlayedIdle;
PathFinder mPathFinder;
AiWanderStorage():
mTargetAngle(0),
mRotate(false),
mReaction(0),
mSaidGreeting(AiWander::Greet_None),
mGreetingTimer(0),
mCell(NULL),
mChooseAction(true),
mIdleNow(false),
mMoveNow(false),
mWalking(false),
mPlayedIdle(0)
{};
};
AiWander::AiWander(int distance, int duration, int timeOfDay, const std::vector<unsigned char>& idle, bool repeat):
mDistance(distance), mDuration(duration), mTimeOfDay(timeOfDay), mIdle(idle), mRepeat(repeat)
, mStoredInitialActorPosition(false)
{
mIdle.resize(8, 0);
init();
}
void AiWander::init()
{
// NOTE: mDistance and mDuration must be set already
mStuckCount = 0;// TODO: maybe no longer needed
mDoorCheckDuration = 0;
mTrimCurrentNode = false;
mHasReturnPosition = false;
mReturnPosition = Ogre::Vector3(0,0,0);
if(mDistance < 0)
mDistance = 0;
if(mDuration < 0)
mDuration = 0;
if(mDuration == 0)
mTimeOfDay = 0;
mStartTime = MWBase::Environment::get().getWorld()->getTimeStamp();
mStoredAvailableNodes = false;
}
AiPackage * MWMechanics::AiWander::clone() const
{
return new AiWander(*this);
}
/*
* AiWander high level states (0.29.0). Not entirely accurate in some cases
* e.g. non-NPC actors do not greet and some creatures may be moving even in
* the IdleNow state.
*
* [select node,
* build path]
* +---------->MoveNow----------->Walking
* | |
* [allowed | |
* nodes] | [hello if near] |
* start--->ChooseAction----->IdleNow |
* ^ ^ | |
* | | | |
* | +-----------+ |
* | |
* +----------------------------------+
*
*
* New high level states. Not exactly as per vanilla (e.g. door stuff)
* but the differences are required because our physics does not work like
* vanilla and therefore have to compensate/work around.
*
* [select node, [if stuck evade
* build path] or remove nodes if near door]
* +---------->MoveNow<---------->Walking
* | ^ | |
* | |(near door) | |
* [allowed | | | |
* nodes] | [hello if near] | |
* start--->ChooseAction----->IdleNow | |
* ^ ^ | ^ | |
* | | | | (stuck near | |
* | +-----------+ +---------------+ |
* | player) |
* +----------------------------------+
*
* NOTE: non-time critical operations are run once every 250ms or so.
*
* TODO: It would be great if door opening/closing can be detected and pathgrid
* links dynamically updated. Currently (0.29.0) AiWander allows choosing a
* destination beyond closed doors which sometimes makes the actors stuck at the
* door and impossible for the player to open the door.
*
* For now detect being stuck at the door and simply delete the nodes from the
* allowed set. The issue is when the door opens the allowed set is not
* re-calculated. However this would not be an issue in most cases since hostile
* actors will enter combat (i.e. no longer wandering) and different pathfinding
* will kick in.
*/
bool AiWander::execute (const MWWorld::Ptr& actor, AiState& state, float duration)
{
// get or create temporary storage
AiWanderStorage& storage = state.get<AiWanderStorage>();
const MWWorld::CellStore*& currentCell = storage.mCell;
MWMechanics::CreatureStats& cStats = actor.getClass().getCreatureStats(actor);
if(cStats.isDead() || cStats.getHealth().getCurrent() <= 0)
return true; // Don't bother with dead actors
bool cellChange = currentCell && (actor.getCell() != currentCell);
if(!currentCell || cellChange)
{
currentCell = actor.getCell();
mStoredAvailableNodes = false; // prob. not needed since mDistance = 0
}
cStats.setDrawState(DrawState_Nothing);
cStats.setMovementFlag(CreatureStats::Flag_Run, false);
ESM::Position pos = actor.getRefData().getPosition();
bool& idleNow = storage.mIdleNow;
bool& moveNow = storage.mMoveNow;
bool& walking = storage.mWalking;
// Check if an idle actor is too close to a door - if so start walking
mDoorCheckDuration += duration;
if(mDoorCheckDuration >= DOOR_CHECK_INTERVAL)
{
mDoorCheckDuration = 0; // restart timer
if(mDistance && // actor is not intended to be stationary
idleNow && // but is in idle
!walking && // FIXME: some actors are idle while walking
proximityToDoor(actor, MIN_DIST_TO_DOOR_SQUARED*1.6*1.6)) // NOTE: checks interior cells only
{
idleNow = false;
moveNow = true;
mTrimCurrentNode = false; // just in case
}
}
// Are we there yet?
bool& chooseAction = storage.mChooseAction;
if(walking &&
storage.mPathFinder.checkPathCompleted(pos.pos[0], pos.pos[1], pos.pos[2], 64.f))
{
stopWalking(actor, storage);
moveNow = false;
walking = false;
chooseAction = true;
mHasReturnPosition = false;
}
if(walking) // have not yet reached the destination
{
// turn towards the next point in mPath
zTurn(actor, Ogre::Degree(storage.mPathFinder.getZAngleToNext(pos.pos[0], pos.pos[1])));
actor.getClass().getMovementSettings(actor).mPosition[1] = 1;
// Returns true if evasive action needs to be taken
if(mObstacleCheck.check(actor, duration))
{
// first check if we're walking into a door
if(proximityToDoor(actor)) // NOTE: checks interior cells only
{
// remove allowed points then select another random destination
mTrimCurrentNode = true;
trimAllowedNodes(mAllowedNodes, storage.mPathFinder);
mObstacleCheck.clear();
storage.mPathFinder.clearPath();
walking = false;
moveNow = true;
}
else // probably walking into another NPC
{
// 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
zTurn(actor, Ogre::Degree(storage.mPathFinder.getZAngleToNext(pos.pos[0] + 1, pos.pos[1])));
}
mStuckCount++; // TODO: maybe no longer needed
}
//#if 0
// TODO: maybe no longer needed
if(mStuckCount >= COUNT_BEFORE_RESET) // something has gone wrong, reset
{
//std::cout << "Reset \""<< cls.getName(actor) << "\"" << std::endl;
mObstacleCheck.clear();
stopWalking(actor, storage);
moveNow = false;
walking = false;
chooseAction = true;
}
//#endif
}
Ogre::Radian& targetAngle = storage.mTargetAngle;
bool& rotate = storage.mRotate;
if (rotate)
{
// Reduce the turning animation glitch by using a *HUGE* value of
// epsilon... TODO: a proper fix might be in either the physics or the
// animation subsystem
if (zTurn(actor, targetAngle, Ogre::Degree(5)))
rotate = false;
}
// Check if idle animation finished
short unsigned& playedIdle = storage.mPlayedIdle;
GreetingState& greetingState = storage.mSaidGreeting;
if(idleNow && !checkIdle(actor, playedIdle) && (greetingState == Greet_Done || greetingState == Greet_None))
{
playedIdle = 0;
idleNow = false;
chooseAction = true;
}
MWBase::World *world = MWBase::Environment::get().getWorld();
if(chooseAction)
{
playedIdle = 0;
getRandomIdle(playedIdle); // NOTE: sets mPlayedIdle with a random selection
if(!playedIdle && mDistance)
{
chooseAction = false;
moveNow = true;
}
else
{
// Play idle animation and recreate vanilla (broken?) behavior of resetting start time of AIWander:
MWWorld::TimeStamp currentTime = world->getTimeStamp();
mStartTime = currentTime;
playIdle(actor, playedIdle);
chooseAction = false;
idleNow = true;
}
}
// Play idle voiced dialogue entries randomly
int hello = cStats.getAiSetting(CreatureStats::AI_Hello).getModified();
if (hello > 0 && !MWBase::Environment::get().getWorld()->isSwimming(actor)
&& MWBase::Environment::get().getSoundManager()->sayDone(actor))
{
MWWorld::Ptr player = MWBase::Environment::get().getWorld()->getPlayerPtr();
static float fVoiceIdleOdds = MWBase::Environment::get().getWorld()->getStore()
.get<ESM::GameSetting>().find("fVoiceIdleOdds")->getFloat();
float roll = std::rand()/ (static_cast<double> (RAND_MAX) + 1) * 10000;
// In vanilla MW the chance was FPS dependent, and did not allow proper changing of fVoiceIdleOdds
// due to the roll being an integer.
// Our implementation does not have these issues, so needs to be recalibrated. We chose to
// use the chance MW would have when run at 60 FPS with the default value of the GMST for calibration.
float x = fVoiceIdleOdds * 0.6 * (MWBase::Environment::get().getFrameDuration() / 0.1);
// Only say Idle voices when player is in LOS
// A bit counterintuitive, likely vanilla did this to reduce the appearance of
// voices going through walls?
if (roll < x && Ogre::Vector3(player.getRefData().getPosition().pos).squaredDistance(Ogre::Vector3(pos.pos))
< 3000*3000 // maybe should be fAudioVoiceDefaultMaxDistance*fAudioMaxDistanceMult instead
&& MWBase::Environment::get().getWorld()->getLOS(player, actor))
MWBase::Environment::get().getDialogueManager()->say(actor, "idle");
}
float& lastReaction = storage.mReaction;
lastReaction += duration;
if(lastReaction < REACTION_INTERVAL)
{
return false;
}
else
lastReaction = 0;
// NOTE: everything below get updated every REACTION_INTERVAL seconds
if(mDuration)
{
// End package if duration is complete or mid-night hits:
MWWorld::TimeStamp currentTime = world->getTimeStamp();
if(currentTime.getHour() >= mStartTime.getHour() + mDuration)
{
if(!mRepeat)
{
stopWalking(actor, storage);
return true;
}
else
mStartTime = currentTime;
}
else if(int(currentTime.getHour()) == 0 && currentTime.getDay() != mStartTime.getDay())
{
if(!mRepeat)
{
stopWalking(actor, storage);
return true;
}
else
mStartTime = currentTime;
}
}
// Initialization to discover & store allowed node points for this actor.
if(!mStoredAvailableNodes)
{
getAllowedNodes(actor, currentCell->getCell());
}
// Actor becomes stationary - see above URL's for previous research
if(mAllowedNodes.empty())
mDistance = 0;
// Don't try to move if you are in a new cell (ie: positioncell command called) but still play idles.
if(mDistance && cellChange)
mDistance = 0;
// For stationary NPCs, move back to the starting location if another AiPackage moved us elsewhere
if (cellChange)
mHasReturnPosition = false;
if (mDistance == 0 && mHasReturnPosition && Ogre::Vector3(pos.pos).squaredDistance(mReturnPosition) > 20*20)
{
chooseAction = false;
idleNow = false;
if (!storage.mPathFinder.isPathConstructed())
{
Ogre::Vector3 destNodePos = mReturnPosition;
ESM::Pathgrid::Point dest;
dest.mX = destNodePos[0];
dest.mY = destNodePos[1];
dest.mZ = destNodePos[2];
// actor position is already in world co-ordinates
ESM::Pathgrid::Point start;
start.mX = pos.pos[0];
start.mY = pos.pos[1];
start.mZ = pos.pos[2];
// don't take shortcuts for wandering
storage.mPathFinder.buildPath(start, dest, actor.getCell(), false);
if(storage.mPathFinder.isPathConstructed())
{
moveNow = false;
walking = true;
}
}
}
// Allow interrupting a walking actor to trigger a greeting
if(idleNow || walking)
{
// Play a random voice greeting if the player gets too close
int hello = cStats.getAiSetting(CreatureStats::AI_Hello).getModified();
float helloDistance = hello;
static int iGreetDistanceMultiplier =MWBase::Environment::get().getWorld()->getStore()
.get<ESM::GameSetting>().find("iGreetDistanceMultiplier")->getInt();
helloDistance *= iGreetDistanceMultiplier;
MWWorld::Ptr player = MWBase::Environment::get().getWorld()->getPlayerPtr();
Ogre::Vector3 playerPos(player.getRefData().getPosition().pos);
Ogre::Vector3 actorPos(actor.getRefData().getPosition().pos);
float playerDistSqr = playerPos.squaredDistance(actorPos);
int& greetingTimer = storage.mGreetingTimer;
if (greetingState == Greet_None)
{
if ((playerDistSqr <= helloDistance*helloDistance) &&
!player.getClass().getCreatureStats(player).isDead() && MWBase::Environment::get().getWorld()->getLOS(player, actor)
&& MWBase::Environment::get().getMechanicsManager()->awarenessCheck(player, actor))
greetingTimer++;
if (greetingTimer >= GREETING_SHOULD_START)
{
greetingState = Greet_InProgress;
MWBase::Environment::get().getDialogueManager()->say(actor, "hello");
greetingTimer = 0;
}
}
if(greetingState == Greet_InProgress)
{
greetingTimer++;
if(walking)
{
stopWalking(actor, storage);
moveNow = false;
walking = false;
mObstacleCheck.clear();
idleNow = true;
getRandomIdle(playedIdle);
}
if(!rotate)
{
Ogre::Vector3 dir = playerPos - actorPos;
Ogre::Radian faceAngle = Ogre::Math::ATan2(dir.x,dir.y);
Ogre::Radian actorAngle = actor.getRefData().getBaseNode()->getOrientation().getRoll();
// an attempt at reducing the turning animation glitch
if( Ogre::Math::Abs( faceAngle - actorAngle ) >= Ogre::Degree(5) ) // TODO: is there a better way?
{
targetAngle = faceAngle;
rotate = true;
}
}
if (greetingTimer >= GREETING_SHOULD_END)
{
greetingState = Greet_Done;
greetingTimer = 0;
}
}
if (greetingState == MWMechanics::AiWander::Greet_Done)
{
float resetDist = 2*helloDistance;
if (playerDistSqr >= resetDist*resetDist)
greetingState = Greet_None;
}
}
if(moveNow && mDistance)
{
// Construct a new path if there isn't one
if(!storage.mPathFinder.isPathConstructed())
{
assert(mAllowedNodes.size());
unsigned int randNode = (int)(rand() / ((double)RAND_MAX + 1) * mAllowedNodes.size());
// NOTE: initially constructed with local (i.e. cell) co-ordinates
Ogre::Vector3 destNodePos(mAllowedNodes[randNode].mX,
mAllowedNodes[randNode].mY,
mAllowedNodes[randNode].mZ);
// convert dest to use world co-ordinates
ESM::Pathgrid::Point dest;
dest.mX = destNodePos[0];
dest.mY = destNodePos[1];
dest.mZ = destNodePos[2];
if (currentCell->getCell()->isExterior())
{
dest.mX += currentCell->getCell()->mData.mX * ESM::Land::REAL_SIZE;
dest.mY += currentCell->getCell()->mData.mY * ESM::Land::REAL_SIZE;
}
// actor position is already in world co-ordinates
ESM::Pathgrid::Point start;
start.mX = pos.pos[0];
start.mY = pos.pos[1];
start.mZ = pos.pos[2];
// don't take shortcuts for wandering
storage.mPathFinder.buildPath(start, dest, actor.getCell(), false);
if(storage.mPathFinder.isPathConstructed())
{
// buildPath inserts dest in case it is not a pathgraph point
// index which is a duplicate for AiWander. However below code
// does not work since getPath() returns a copy of path not a
// reference
//if(storage.mPathFinder.getPathSize() > 1)
//storage.mPathFinder.getPath().pop_back();
// Remove this node as an option and add back the previously used node (stops NPC from picking the same node):
ESM::Pathgrid::Point temp = mAllowedNodes[randNode];
mAllowedNodes.erase(mAllowedNodes.begin() + randNode);
// check if mCurrentNode was taken out of mAllowedNodes
if(mTrimCurrentNode && mAllowedNodes.size() > 1)
mTrimCurrentNode = false;
else
mAllowedNodes.push_back(mCurrentNode);
mCurrentNode = temp;
moveNow = false;
walking = true;
}
// Choose a different node and delete this one from possible nodes because it is uncreachable:
else
mAllowedNodes.erase(mAllowedNodes.begin() + randNode);
}
}
return false; // AiWander package not yet completed
}
void AiWander::trimAllowedNodes(std::vector<ESM::Pathgrid::Point>& nodes,
const PathFinder& pathfinder)
{
// TODO: how to add these back in once the door opens?
// Idea: keep a list of detected closed doors (see aicombat.cpp)
// Every now and then check whether one of the doors is opened. (maybe
// at the end of playing idle?) If the door is opened then re-calculate
// allowed nodes starting from the spawn point.
std::list<ESM::Pathgrid::Point> paths = pathfinder.getPath();
while(paths.size() >= 2)
{
ESM::Pathgrid::Point pt = paths.back();
for(unsigned int j = 0; j < nodes.size(); j++)
{
// FIXME: doesn't hadle a door with the same X/Y
// co-ordinates but with a different Z
if(nodes[j].mX == pt.mX && nodes[j].mY == pt.mY)
{
nodes.erase(nodes.begin() + j);
break;
}
}
paths.pop_back();
}
}
int AiWander::getTypeId() const
{
return TypeIdWander;
}
void AiWander::stopWalking(const MWWorld::Ptr& actor, AiWanderStorage& storage)
{
storage.mPathFinder.clearPath();
actor.getClass().getMovementSettings(actor).mPosition[1] = 0;
}
void AiWander::playIdle(const MWWorld::Ptr& actor, unsigned short idleSelect)
{
if(idleSelect == 2)
MWBase::Environment::get().getMechanicsManager()->playAnimationGroup(actor, "idle2", 0, 1);
else if(idleSelect == 3)
MWBase::Environment::get().getMechanicsManager()->playAnimationGroup(actor, "idle3", 0, 1);
else if(idleSelect == 4)
MWBase::Environment::get().getMechanicsManager()->playAnimationGroup(actor, "idle4", 0, 1);
else if(idleSelect == 5)
MWBase::Environment::get().getMechanicsManager()->playAnimationGroup(actor, "idle5", 0, 1);
else if(idleSelect == 6)
MWBase::Environment::get().getMechanicsManager()->playAnimationGroup(actor, "idle6", 0, 1);
else if(idleSelect == 7)
MWBase::Environment::get().getMechanicsManager()->playAnimationGroup(actor, "idle7", 0, 1);
else if(idleSelect == 8)
MWBase::Environment::get().getMechanicsManager()->playAnimationGroup(actor, "idle8", 0, 1);
else if(idleSelect == 9)
MWBase::Environment::get().getMechanicsManager()->playAnimationGroup(actor, "idle9", 0, 1);
}
bool AiWander::checkIdle(const MWWorld::Ptr& actor, unsigned short idleSelect)
{
if(idleSelect == 2)
return MWBase::Environment::get().getMechanicsManager()->checkAnimationPlaying(actor, "idle2");
else if(idleSelect == 3)
return MWBase::Environment::get().getMechanicsManager()->checkAnimationPlaying(actor, "idle3");
else if(idleSelect == 4)
return MWBase::Environment::get().getMechanicsManager()->checkAnimationPlaying(actor, "idle4");
else if(idleSelect == 5)
return MWBase::Environment::get().getMechanicsManager()->checkAnimationPlaying(actor, "idle5");
else if(idleSelect == 6)
return MWBase::Environment::get().getMechanicsManager()->checkAnimationPlaying(actor, "idle6");
else if(idleSelect == 7)
return MWBase::Environment::get().getMechanicsManager()->checkAnimationPlaying(actor, "idle7");
else if(idleSelect == 8)
return MWBase::Environment::get().getMechanicsManager()->checkAnimationPlaying(actor, "idle8");
else if(idleSelect == 9)
return MWBase::Environment::get().getMechanicsManager()->checkAnimationPlaying(actor, "idle9");
else
return false;
}
void AiWander::setReturnPosition(const Ogre::Vector3& position)
{
if (!mHasReturnPosition)
{
mHasReturnPosition = true;
mReturnPosition = position;
}
}
void AiWander::getRandomIdle(short unsigned& playedIdle)
{
unsigned short idleRoll = 0;
for(unsigned int counter = 0; counter < mIdle.size(); counter++)
{
static float fIdleChanceMultiplier = MWBase::Environment::get().getWorld()->getStore()
.get<ESM::GameSetting>().find("fIdleChanceMultiplier")->getFloat();
unsigned short idleChance = fIdleChanceMultiplier * mIdle[counter];
unsigned short randSelect = (int)(rand() / ((double)RAND_MAX + 1) * int(100 / fIdleChanceMultiplier));
if(randSelect < idleChance && randSelect > idleRoll)
{
playedIdle = counter+2;
idleRoll = randSelect;
}
}
}
void AiWander::fastForward(const MWWorld::Ptr& actor, AiState &state)
{
if (mDistance == 0)
return;
if (!mStoredAvailableNodes)
getAllowedNodes(actor, actor.getCell()->getCell());
if (mAllowedNodes.empty())
return;
state.moveIn(new AiWanderStorage());
int index = std::rand() / (static_cast<double> (RAND_MAX) + 1) * mAllowedNodes.size();
ESM::Pathgrid::Point dest = mAllowedNodes[index];
// apply a slight offset to prevent overcrowding
dest.mX += Ogre::Math::RangeRandom(-64, 64);
dest.mY += Ogre::Math::RangeRandom(-64, 64);
if (actor.getCell()->isExterior())
{
dest.mX += actor.getCell()->getCell()->mData.mX * ESM::Land::REAL_SIZE;
dest.mY += actor.getCell()->getCell()->mData.mY * ESM::Land::REAL_SIZE;
}
MWBase::Environment::get().getWorld()->moveObject(actor, dest.mX, dest.mY, dest.mZ);
actor.getClass().adjustPosition(actor, false);
}
void AiWander::getAllowedNodes(const MWWorld::Ptr& actor, const ESM::Cell* cell)
{
if (!mStoredInitialActorPosition)
{
mInitialActorPosition = Ogre::Vector3(actor.getRefData().getPosition().pos);
mStoredInitialActorPosition = true;
}
// infrequently used, therefore no benefit in caching it as a member
const ESM::Pathgrid *
pathgrid = MWBase::Environment::get().getWorld()->getStore().get<ESM::Pathgrid>().search(*cell);
// If there is no path this actor doesn't go anywhere. See:
// https://forum.openmw.org/viewtopic.php?t=1556
// http://www.fliggerty.com/phpBB3/viewtopic.php?f=30&t=5833
if(!pathgrid || pathgrid->mPoints.empty())
mDistance = 0;
// A distance value passed into the constructor indicates how far the
// actor can wander from the spawn position. AiWander assumes that
// pathgrid points are available, and uses them to randomly select wander
// destinations within the allowed set of pathgrid points (nodes).
if(mDistance)
{
float cellXOffset = 0;
float cellYOffset = 0;
if(cell->isExterior())
{
cellXOffset = cell->mData.mX * ESM::Land::REAL_SIZE;
cellYOffset = cell->mData.mY * ESM::Land::REAL_SIZE;
}
// convert npcPos to local (i.e. cell) co-ordinates
Ogre::Vector3 npcPos(mInitialActorPosition);
npcPos[0] = npcPos[0] - cellXOffset;
npcPos[1] = npcPos[1] - cellYOffset;
// mAllowedNodes for this actor with pathgrid point indexes based on mDistance
// NOTE: mPoints and mAllowedNodes are in local co-ordinates
for(unsigned int counter = 0; counter < pathgrid->mPoints.size(); counter++)
{
Ogre::Vector3 nodePos(pathgrid->mPoints[counter].mX, pathgrid->mPoints[counter].mY,
pathgrid->mPoints[counter].mZ);
if(npcPos.squaredDistance(nodePos) <= mDistance * mDistance)
mAllowedNodes.push_back(pathgrid->mPoints[counter]);
}
if(!mAllowedNodes.empty())
{
Ogre::Vector3 firstNodePos(mAllowedNodes[0].mX, mAllowedNodes[0].mY, mAllowedNodes[0].mZ);
float closestNode = npcPos.squaredDistance(firstNodePos);
unsigned int index = 0;
for(unsigned int counterThree = 1; counterThree < mAllowedNodes.size(); counterThree++)
{
Ogre::Vector3 nodePos(mAllowedNodes[counterThree].mX, mAllowedNodes[counterThree].mY,
mAllowedNodes[counterThree].mZ);
float tempDist = npcPos.squaredDistance(nodePos);
if(tempDist < closestNode)
index = counterThree;
}
mCurrentNode = mAllowedNodes[index];
mAllowedNodes.erase(mAllowedNodes.begin() + index);
mStoredAvailableNodes = true; // set only if successful in finding allowed nodes
}
}
}
void AiWander::writeState(ESM::AiSequence::AiSequence &sequence) const
{
std::auto_ptr<ESM::AiSequence::AiWander> wander(new ESM::AiSequence::AiWander());
wander->mData.mDistance = mDistance;
wander->mData.mDuration = mDuration;
wander->mData.mTimeOfDay = mTimeOfDay;
wander->mStartTime = mStartTime.toEsm();
assert (mIdle.size() == 8);
for (int i=0; i<8; ++i)
wander->mData.mIdle[i] = mIdle[i];
wander->mData.mShouldRepeat = mRepeat;
wander->mStoredInitialActorPosition = mStoredInitialActorPosition;
if (mStoredInitialActorPosition)
wander->mInitialActorPosition = mInitialActorPosition;
ESM::AiSequence::AiPackageContainer package;
package.mType = ESM::AiSequence::Ai_Wander;
package.mPackage = wander.release();
sequence.mPackages.push_back(package);
}
AiWander::AiWander (const ESM::AiSequence::AiWander* wander)
: mDistance(wander->mData.mDistance)
, mDuration(wander->mData.mDuration)
, mStartTime(MWWorld::TimeStamp(wander->mStartTime))
, mTimeOfDay(wander->mData.mTimeOfDay)
, mRepeat(wander->mData.mShouldRepeat)
, mStoredInitialActorPosition(wander->mStoredInitialActorPosition)
{
if (mStoredInitialActorPosition)
mInitialActorPosition = wander->mInitialActorPosition;
for (int i=0; i<8; ++i)
mIdle.push_back(wander->mData.mIdle[i]);
init();
}
}