void AiCombat::buildNewPath(const MWWorld::Ptr& actor)
{
//Construct path to target
ESM::Pathgrid::Point dest;
dest.mX = mTarget.getRefData().getPosition().pos[0];
dest.mY = mTarget.getRefData().getPosition().pos[1];
dest.mZ = mTarget.getRefData().getPosition().pos[2];
Ogre::Vector3 newPathTarget = Ogre::Vector3(dest.mX, dest.mY, dest.mZ);
float dist = -1; //hack to indicate first time, to construct a new path
if(!mPathFinder.getPath().empty())
{
ESM::Pathgrid::Point lastPt = mPathFinder.getPath().back();
Ogre::Vector3 currPathTarget(lastPt.mX, lastPt.mY, lastPt.mZ);
dist = Ogre::Math::Abs((newPathTarget - currPathTarget).length());
}
float targetPosThreshold;
bool isOutside = actor.getCell()->getCell()->isExterior();
if (isOutside)
targetPosThreshold = 300;
else
targetPosThreshold = 100;
if((dist < 0) || (dist > targetPosThreshold))
{
//construct new path only if target has moved away more than on <targetPosThreshold>
ESM::Position pos = actor.getRefData().getPosition();
ESM::Pathgrid::Point start;
start.mX = pos.pos[0];
start.mY = pos.pos[1];
start.mZ = pos.pos[2];
if(!mPathFinder.isPathConstructed())
mPathFinder.buildPath(start, dest, actor.getCell(), isOutside);
else
{
PathFinder newPathFinder;
newPathFinder.buildPath(start, dest, actor.getCell(), isOutside);
//TO EXPLORE:
//maybe here is a mistake (?): PathFinder::getPathSize() returns number of grid points in the path,
//not the actual path length. Here we should know if the new path is actually more effective.
//if(pathFinder2.getPathSize() < mPathFinder.getPathSize())
if(!mPathFinder.getPath().empty())
{
newPathFinder.syncStart(mPathFinder.getPath());
mPathFinder = newPathFinder;
}
}
}
}
bool AiCombat::doesPathNeedRecalc(ESM::Pathgrid::Point dest, const ESM::Cell *cell)
{
if (!mPathFinder.getPath().empty())
{
osg::Vec3f currPathTarget(PathFinder::MakeOsgVec3(mPathFinder.getPath().back()));
osg::Vec3f newPathTarget = PathFinder::MakeOsgVec3(dest);
float dist = (newPathTarget - currPathTarget).length();
float targetPosThreshold = (cell->isExterior()) ? 300.0f : 100.0f;
return dist > targetPosThreshold;
}
else
{
// necessarily construct a new path
return true;
}
}
void AiCombat::buildNewPath(const MWWorld::Ptr& actor, const MWWorld::Ptr& target)
{
Ogre::Vector3 newPathTarget = Ogre::Vector3(target.getRefData().getPosition().pos);
float dist;
if(!mPathFinder.getPath().empty())
{
ESM::Pathgrid::Point lastPt = mPathFinder.getPath().back();
Ogre::Vector3 currPathTarget(lastPt.mX, lastPt.mY, lastPt.mZ);
dist = (newPathTarget - currPathTarget).length();
}
else dist = 1e+38F; // necessarily construct a new path
float targetPosThreshold = (actor.getCell()->getCell()->isExterior())? 300 : 100;
//construct new path only if target has moved away more than on [targetPosThreshold]
if(dist > targetPosThreshold)
{
ESM::Position pos = actor.getRefData().getPosition();
ESM::Pathgrid::Point start;
start.mX = pos.pos[0];
start.mY = pos.pos[1];
start.mZ = pos.pos[2];
ESM::Pathgrid::Point dest;
dest.mX = newPathTarget.x;
dest.mY = newPathTarget.y;
dest.mZ = newPathTarget.z;
if(!mPathFinder.isPathConstructed())
mPathFinder.buildPath(start, dest, actor.getCell(), false);
else
{
PathFinder newPathFinder;
newPathFinder.buildPath(start, dest, actor.getCell(), false);
if(!mPathFinder.getPath().empty())
{
newPathFinder.syncStart(mPathFinder.getPath());
mPathFinder = newPathFinder;
}
}
}
}
