void UEnvQueryGenerator_SimpleGrid::GenerateItems(FEnvQueryInstance& QueryInstance) const
{
UObject* BindOwner = QueryInstance.Owner.Get();
GridSize.BindData(BindOwner, QueryInstance.QueryID);
SpaceBetween.BindData(BindOwner, QueryInstance.QueryID);
float RadiusValue = GridSize.GetValue();
float DensityValue = SpaceBetween.GetValue();
const int32 ItemCount = FPlatformMath::TruncToInt((RadiusValue * 2.0f / DensityValue) + 1);
const int32 ItemCountHalf = ItemCount / 2;
TArray<FVector> ContextLocations;
QueryInstance.PrepareContext(GenerateAround, ContextLocations);
TArray<FNavLocation> GridPoints;
GridPoints.Reserve(ItemCount * ItemCount * ContextLocations.Num());
for (int32 ContextIndex = 0; ContextIndex < ContextLocations.Num(); ContextIndex++)
{
for (int32 IndexX = 0; IndexX <= ItemCount; ++IndexX)
{
for (int32 IndexY = 0; IndexY <= ItemCount; ++IndexY)
{
const FNavLocation TestPoint = FNavLocation(ContextLocations[ContextIndex] - FVector(DensityValue * (IndexX - ItemCountHalf), DensityValue * (IndexY - ItemCountHalf), 0));
GridPoints.Add(TestPoint);
}
}
}
ProjectAndFilterNavPoints(GridPoints, QueryInstance);
StoreNavPoints(GridPoints, QueryInstance);
}
void UEnvQueryGenerator_OnCircle::AddItemDataForCircle(uint8* ContextRawData, UEnvQueryItemType* ContextItemType,
const TArray<FNavLocation>& Locations, FEnvQueryInstance& OutQueryInstance) const
{
StoreNavPoints(Locations, OutQueryInstance);
}
void UEnvQueryGenerator_Donut::GenerateItems(FEnvQueryInstance& QueryInstance) const
{
TArray<FVector> CenterPoints;
QueryInstance.PrepareContext(Center, CenterPoints);
if (CenterPoints.Num() <= 0)
{
return;
}
UObject* BindOwner = QueryInstance.Owner.Get();
InnerRadius.BindData(BindOwner, QueryInstance.QueryID);
OuterRadius.BindData(BindOwner, QueryInstance.QueryID);
NumberOfRings.BindData(BindOwner, QueryInstance.QueryID);
PointsPerRing.BindData(BindOwner, QueryInstance.QueryID);
ArcAngle.BindData(BindOwner, QueryInstance.QueryID);
float ArcAngleValue = ArcAngle.GetValue();
float InnerRadiusValue = InnerRadius.GetValue();
float OuterRadiusValue = OuterRadius.GetValue();
int32 NumRings = NumberOfRings.GetValue();
int32 NumPoints = PointsPerRing.GetValue();
if ((InnerRadiusValue <= 0.f) || (OuterRadiusValue <= 0.f) ||
(InnerRadiusValue > OuterRadiusValue) ||
(NumRings < 1) || (NumPoints < 1))
{
return;
}
const float ArcBisectDeg = GetArcBisectorAngle(QueryInstance);
const float ArcAngleDeg = FMath::Clamp(ArcAngleValue, 0.0f, 360.0f);
const float RadiusDelta = (OuterRadiusValue - InnerRadiusValue) / (NumRings - 1);
const float AngleDelta = 2.0 * PI / NumPoints;
float SectionAngle = FMath::DegreesToRadians(ArcBisectDeg);
TArray<FNavLocation> Points;
Points.Reserve(NumPoints * NumRings);
for (int32 SectionIdx = 0; SectionIdx < NumPoints; SectionIdx++, SectionAngle += AngleDelta)
{
if (IsAngleAllowed(SectionAngle, ArcBisectDeg, ArcAngleDeg, bDefineArc))
{
const float SinValue = FMath::Sin(SectionAngle);
const float CosValue = FMath::Cos(SectionAngle);
float RingRadius = InnerRadiusValue;
for (int32 RingIdx = 0; RingIdx < NumRings; RingIdx++, RingRadius += RadiusDelta)
{
const FVector RingPos(RingRadius * CosValue, RingRadius * SinValue, 0.0f);
for (int32 ContextIdx = 0; ContextIdx < CenterPoints.Num(); ContextIdx++)
{
const FNavLocation PointPos = FNavLocation(CenterPoints[ContextIdx] + RingPos);
Points.Add(PointPos);
}
}
}
}
ProjectAndFilterNavPoints(Points, QueryInstance);
StoreNavPoints(Points, QueryInstance);
}