AMWWaypoint* AMWPatController::FindNearestWaypoint(bool bSetAsNext)
{
const AMWPat* pat = Cast<AMWPat>(GetPawn());
if (!pat)
{
return nullptr;
}
float minDist = MAX_FLT;
AMWWaypoint* nearestWp = nullptr;
// get all the waypoints in the level
TArray<AActor*> foundActors;
UGameplayStatics::GetAllActorsOfClass(this, AMWWaypoint::StaticClass(), foundActors);
if (!foundActors.Num())
{
UE_LOG(LogTemp, Error, TEXT("No waypoints in the level"));
return nullptr;
}
for (AActor* actor : foundActors)
{
const float dist = (pat->GetActorLocation() - actor->GetActorLocation()).SizeSquared();
AMWWaypoint* waypoint = Cast<AMWWaypoint>(actor);
const FString patTag = pat->WaypointTag;
const FString wpTag = waypoint->Tag;
// tags must match
if (dist < minDist && patTag == wpTag)
{
minDist = dist;
nearestWp = waypoint;
}
}
if (!nearestWp)
{
UE_LOG(LogTemp, Error, TEXT("Pat %s couldn't find a waypoint with matching tag %s"), *pat->GetName(), *pat->WaypointTag);
return nullptr;
}
// check whether we are already stand on that waypoint
// normally waypoints stay far away from each other, so there is only one possible overlapping at a given time
TArray<AActor*> overlaps;
pat->GetOverlappingActors(overlaps, AMWWaypoint::StaticClass());
if (overlaps.Num() && overlaps[0] == nearestWp)
{
check(nearestWp->Next)
nearestWp = nearestWp->Next;
}
if (nearestWp && bSetAsNext)
{
SetNextWaypoint(nearestWp);
}
return nearestWp;
}
bool npc_escortAI::SetNextWaypoint(uint32 pointId, float x, float y, float z, float orientation)
{
me->UpdatePosition(x, y, z, orientation);
return SetNextWaypoint(pointId, false, true);
}
