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Do not fallback to direct path without pathgrid

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Assume this might happen only due buildPath call when navmesh can't
provide path.
This commit is contained in:
elsid 2020-06-12 21:04:11 +02:00
parent c4cd3b2c4f
commit d863267d5c
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1 changed files with 12 additions and 8 deletions
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20
apps/openmw/mwmechanics/pathfinding.cpp
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@ -158,10 +158,7 @@ namespace MWMechanics
// Maybe there is no pathgrid for this cell. Just go to destination and let
// physics take care of any blockages.
if(!pathgrid || pathgrid->mPoints.empty())
{
*out++ = endPoint;
return;
}
// NOTE: getClosestPoint expects local coordinates
Misc::CoordinateConverter converter(mCell->getCell());
@ -179,6 +176,9 @@ namespace MWMechanics
endPointInLocalCoords,
startNode);
if (!endNode.second)
return;
// if it's shorter for actor to travel from start to end, than to travel from either
// start or end to nearest pathgrid point, just travel from start to end.
float startToEndLength2 = (endPointInLocalCoords - startPointInLocalCoords).length2();
@ -249,8 +249,7 @@ namespace MWMechanics
// unreachable pathgrid point.
//
// The AI routines will have to deal with such situations.
if(endNode.second)
*out++ = endPoint;
*out++ = endPoint;
}
float PathFinder::getZAngleToNext(float x, float y) const
@ -328,16 +327,21 @@ namespace MWMechanics
mPath.clear();
mCell = cell;
if (!actor.getClass().isPureWaterCreature(actor) && !actor.getClass().isPureFlyingCreature(actor))
buildPathByNavigatorImpl(actor, startPoint, endPoint, halfExtents, flags, std::back_inserter(mPath));
bool hasNavMesh = false;
if (mPath.empty())
if (!actor.getClass().isPureWaterCreature(actor) && !actor.getClass().isPureFlyingCreature(actor))
hasNavMesh = buildPathByNavigatorImpl(actor, startPoint, endPoint, halfExtents, flags, std::back_inserter(mPath));
if (hasNavMesh && mPath.empty())
buildPathByNavigatorImpl(actor, startPoint, endPoint, halfExtents,
flags | DetourNavigator::Flag_usePathgrid, std::back_inserter(mPath));
if (mPath.empty())
buildPathByPathgridImpl(startPoint, endPoint, pathgridGraph, std::back_inserter(mPath));
if (!hasNavMesh && mPath.empty())
mPath.push_back(endPoint);
mConstructed = true;
}