Add NOAA NWS weather fallback

This commit is contained in:
2026-05-15 23:25:00 -07:00
parent 902bc3b42b
commit 5a90d532e2
6 changed files with 307 additions and 1 deletions
@@ -40,6 +40,7 @@ bool UAgrarianWeatherProviderSubsystem::RequestWeatherForTile(FName TileId, floa
Request->SetURL(Url);
Request->SetVerb(TEXT("GET"));
Request->SetHeader(TEXT("Accept"), TEXT("application/json"));
Request->SetHeader(TEXT("User-Agent"), TEXT("AgrarianGameMVP/0.1"));
Request->OnProcessRequestComplete().BindUObject(this, &UAgrarianWeatherProviderSubsystem::OnOpenMeteoResponse, TileId, Latitude, Longitude);
return Request->ProcessRequest();
}
@@ -55,6 +56,42 @@ FString UAgrarianWeatherProviderSubsystem::BuildOpenMeteoForecastUrl(FName TileI
ClampedLongitude);
}
bool UAgrarianWeatherProviderSubsystem::RequestNoaaNwsFallbackForTile(FName TileId, float Latitude, float Longitude)
{
if (!bEnableNoaaNwsFallbackForUSTiles || TileId == NAME_None || !IsNoaaNwsEligibleCoordinate(Latitude, Longitude))
{
return false;
}
UWorld* World = GetWorld();
if (!World || !World->GetAuthGameMode())
{
return false;
}
TSharedRef<IHttpRequest, ESPMode::ThreadSafe> Request = FHttpModule::Get().CreateRequest();
Request->SetURL(BuildNoaaNwsPointsUrl(Latitude, Longitude));
Request->SetVerb(TEXT("GET"));
Request->SetHeader(TEXT("Accept"), TEXT("application/geo+json"));
Request->SetHeader(TEXT("User-Agent"), NoaaNwsUserAgent);
Request->OnProcessRequestComplete().BindUObject(this, &UAgrarianWeatherProviderSubsystem::OnNoaaNwsPointsResponse, TileId, Latitude, Longitude);
return Request->ProcessRequest();
}
bool UAgrarianWeatherProviderSubsystem::IsNoaaNwsEligibleCoordinate(float Latitude, float Longitude) const
{
return Latitude >= 18.0f && Latitude <= 72.0f && Longitude >= -180.0f && Longitude <= -64.0f;
}
FString UAgrarianWeatherProviderSubsystem::BuildNoaaNwsPointsUrl(float Latitude, float Longitude) const
{
return FString::Printf(
TEXT("%s/%.4f,%.4f"),
*NoaaNwsPointsEndpoint,
FMath::Clamp(Latitude, -90.0f, 90.0f),
FMath::Clamp(Longitude, -180.0f, 180.0f));
}
bool UAgrarianWeatherProviderSubsystem::ApplySnapshotToGameState(const FAgrarianWeatherProviderSnapshot& Snapshot, AAgrarianGameState* GameState) const
{
if (!Snapshot.bIsValid || !GameState || !GameState->HasAuthority())
@@ -112,6 +149,63 @@ void UAgrarianWeatherProviderSubsystem::OnOpenMeteoResponse(FHttpRequestPtr Requ
ApplySnapshotToGameState(Snapshot, GameState);
}
void UAgrarianWeatherProviderSubsystem::OnNoaaNwsPointsResponse(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful, FName TileId, float Latitude, float Longitude)
{
if (!bWasSuccessful || !Response.IsValid() || Response->GetResponseCode() < 200 || Response->GetResponseCode() >= 300)
{
return;
}
TSharedPtr<FJsonObject> RootObject;
const TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(Response->GetContentAsString());
if (!FJsonSerializer::Deserialize(Reader, RootObject) || !RootObject.IsValid())
{
return;
}
const TSharedPtr<FJsonObject>* PropertiesObject = nullptr;
if (!RootObject->TryGetObjectField(TEXT("properties"), PropertiesObject) || !PropertiesObject || !PropertiesObject->IsValid())
{
return;
}
FString ForecastGridDataUrl;
if (!(*PropertiesObject)->TryGetStringField(TEXT("forecastGridData"), ForecastGridDataUrl) || ForecastGridDataUrl.IsEmpty())
{
return;
}
LastNoaaNwsForecastGridDataUrl = ForecastGridDataUrl;
TSharedRef<IHttpRequest, ESPMode::ThreadSafe> GridRequest = FHttpModule::Get().CreateRequest();
GridRequest->SetURL(ForecastGridDataUrl);
GridRequest->SetVerb(TEXT("GET"));
GridRequest->SetHeader(TEXT("Accept"), TEXT("application/geo+json"));
GridRequest->SetHeader(TEXT("User-Agent"), NoaaNwsUserAgent);
GridRequest->OnProcessRequestComplete().BindUObject(this, &UAgrarianWeatherProviderSubsystem::OnNoaaNwsGridDataResponse, TileId, Latitude, Longitude);
GridRequest->ProcessRequest();
}
void UAgrarianWeatherProviderSubsystem::OnNoaaNwsGridDataResponse(FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful, FName TileId, float Latitude, float Longitude)
{
if (!bWasSuccessful || !Response.IsValid() || Response->GetResponseCode() < 200 || Response->GetResponseCode() >= 300)
{
return;
}
FAgrarianWeatherProviderSnapshot Snapshot;
if (!ParseNoaaNwsGridData(Response->GetContentAsString(), TileId, Latitude, Longitude, Snapshot))
{
return;
}
LastSnapshot = Snapshot;
UWorld* World = GetWorld();
AAgrarianGameState* GameState = World ? World->GetGameState<AAgrarianGameState>() : nullptr;
ApplySnapshotToGameState(Snapshot, GameState);
}
bool UAgrarianWeatherProviderSubsystem::ParseOpenMeteoForecast(const FString& ResponseContent, FName TileId, float Latitude, float Longitude, FAgrarianWeatherProviderSnapshot& OutSnapshot) const
{
TSharedPtr<FJsonObject> RootObject;
@@ -181,3 +275,63 @@ bool UAgrarianWeatherProviderSubsystem::ParseOpenMeteoForecast(const FString& Re
OutSnapshot.bIsValid = true;
return true;
}
bool UAgrarianWeatherProviderSubsystem::ParseNoaaNwsGridData(const FString& ResponseContent, FName TileId, float Latitude, float Longitude, FAgrarianWeatherProviderSnapshot& OutSnapshot) const
{
TSharedPtr<FJsonObject> RootObject;
const TSharedRef<TJsonReader<>> Reader = TJsonReaderFactory<>::Create(ResponseContent);
if (!FJsonSerializer::Deserialize(Reader, RootObject) || !RootObject.IsValid())
{
return false;
}
const TSharedPtr<FJsonObject>* PropertiesObject = nullptr;
if (!RootObject->TryGetObjectField(TEXT("properties"), PropertiesObject) || !PropertiesObject || !PropertiesObject->IsValid())
{
return false;
}
auto ReadFirstGridValue = [](const TSharedPtr<FJsonObject>& Properties, const TCHAR* FieldName, double& OutValue) -> bool
{
const TSharedPtr<FJsonObject>* FieldObject = nullptr;
if (!Properties->TryGetObjectField(FieldName, FieldObject) || !FieldObject || !FieldObject->IsValid())
{
return false;
}
const TArray<TSharedPtr<FJsonValue>>* Values = nullptr;
if (!(*FieldObject)->TryGetArrayField(TEXT("values"), Values) || !Values || Values->Num() == 0)
{
return false;
}
const TSharedPtr<FJsonObject> FirstValue = (*Values)[0]->AsObject();
return FirstValue.IsValid() && FirstValue->TryGetNumberField(TEXT("value"), OutValue);
};
double TemperatureC = 0.0;
if (!ReadFirstGridValue(*PropertiesObject, TEXT("temperature"), TemperatureC))
{
return false;
}
double PrecipitationPercent = 0.0;
double WindSpeedKmh = 0.0;
ReadFirstGridValue(*PropertiesObject, TEXT("probabilityOfPrecipitation"), PrecipitationPercent);
ReadFirstGridValue(*PropertiesObject, TEXT("windSpeed"), WindSpeedKmh);
OutSnapshot.TileId = TileId;
OutSnapshot.Latitude = FMath::Clamp(Latitude, -90.0f, 90.0f);
OutSnapshot.Longitude = FMath::Clamp(Longitude, -180.0f, 180.0f);
OutSnapshot.Provider = TEXT("noaa-nws");
OutSnapshot.ProviderTimestamp = FDateTime::UtcNow().ToIso8601();
OutSnapshot.CurrentTemperatureC = static_cast<float>(TemperatureC);
OutSnapshot.DailyLowTemperatureC = static_cast<float>(TemperatureC - 4.0);
OutSnapshot.DailyHighTemperatureC = static_cast<float>(TemperatureC + 4.0);
OutSnapshot.PrecipitationMm = PrecipitationPercent > 30.0 ? 0.1f : 0.0f;
OutSnapshot.WindSpeedKmh = static_cast<float>(WindSpeedKmh);
OutSnapshot.WeatherCode = PrecipitationPercent > 30.0 ? 61 : 0;
OutSnapshot.MappedWeather = MapOpenMeteoWeatherCode(OutSnapshot.WeatherCode, OutSnapshot.PrecipitationMm, OutSnapshot.WindSpeedKmh);
OutSnapshot.bIsValid = true;
return true;
}