void OptionWindow::Think(float dt)
{
GUIWindow::Think(dt);
CenterLocation(ENGINEMANAGER.GetScreenDimension(), 0, 0);
SwitchMode();
if(NULL != current) current->Think(dt);
}
void UEnvQueryGenerator_OnCircle::GenerateItems(FEnvQueryInstance& QueryInstance) const
{
float AngleDegree = 360.f;
float RadiusValue = 0.f;
float ItemSpace = 1.0f;
if (QueryInstance.GetParamValue(Angle, AngleDegree, TEXT("Angle")) == false
|| QueryInstance.GetParamValue(Radius, RadiusValue, TEXT("Radius")) == false
|| QueryInstance.GetParamValue(ItemSpacing, ItemSpace, TEXT("ItemSpacing")) == false
|| AngleDegree <= 0.f || AngleDegree > 360.f
|| RadiusValue <= 0.f)
{
return;
}
AngleRadians = FMath::DegreesToRadians(Angle.Value);
// first generate points on a circle
const float CircumferenceLength = 2.f * PI * RadiusValue;
const float ArcAnglePercentage = Angle.Value / 360.f;
const float ArcLength = CircumferenceLength * ArcAnglePercentage;
const int32 StepsCount = FMath::CeilToInt(ArcLength / ItemSpace) + 1;
const float AngleStep = AngleDegree / (StepsCount - 1);
FVector StartDirection = CalcDirection(QueryInstance);
TArray<FVector> CenterLocationCandidates;
QueryInstance.PrepareContext(CircleCenter, CenterLocationCandidates);
StartDirection = StartDirection.RotateAngleAxis(-AngleDegree/2, FVector::UpVector) * RadiusValue;
int NumCenterLocations = CenterLocationCandidates.Num();
if (NumCenterLocations > 0)
{
for (int i = 0; i < NumCenterLocations; ++i)
{
GenerateItemsForCircle(CenterLocationCandidates[i], StartDirection, StepsCount, AngleStep, QueryInstance);
}
}
else
{
FVector CenterLocation(0);
AActor* Querier = Cast<AActor>(QueryInstance.Owner.Get());
if (Querier)
{
CenterLocation = Querier->GetActorLocation();
}
GenerateItemsForCircle(CenterLocation, StartDirection, StepsCount, AngleStep, QueryInstance);
}
}
