//returns the weather average for a specific airport and specific month
public static WeatherAverage GetWeatherAverage(int month, Airport airport)
{
WeatherAverage airportAverage = averages.Find(w => w.Airport == airport && w.Month == month);
WeatherAverage townAverage = averages.Find(w => w.Town == airport.Profile.Town && w.Month == month);
WeatherAverage countryAverage = averages.Find(w => w.Country == airport.Profile.Town.Country && w.Month == month);
if (airportAverage != null)
{
return(airportAverage);
}
if (townAverage != null)
{
return(townAverage);
}
if (countryAverage != null)
{
return(countryAverage);
}
return(null);
}
//creates the weather from an average
private static Weather CreateDayWeather(DateTime date, Weather previousWeather, WeatherAverage average)
{
Weather.WindDirection[] windDirectionValues = (Weather.WindDirection[])Enum.GetValues(typeof(Weather.WindDirection));
Weather.eWindSpeed[] windSpeedValues = (Weather.eWindSpeed[])Enum.GetValues(typeof(Weather.eWindSpeed));
Weather.CloudCover[] coverValues = (Weather.CloudCover[])Enum.GetValues(typeof(Weather.CloudCover));
Weather.WindDirection windDirection = windDirectionValues[rnd.Next(windDirectionValues.Length)];
Weather.CloudCover cover;
Weather.Precipitation precip = Weather.Precipitation.None;
Weather.eWindSpeed windSpeed;
double temperature, temperatureLow, temperatureHigh, temperatureSunrise, temperatureSunset, temperatureDayend;
int windIndexMin = windSpeedValues.ToList().IndexOf(average.WindSpeedMin);
int windIndexMax = windSpeedValues.ToList().IndexOf(average.WindSpeedMax);
if (previousWeather == null)
{
windSpeed = windSpeedValues[rnd.Next(windIndexMin, windIndexMax)];
temperatureLow = MathHelpers.GetRandomDoubleNumber(average.TemperatureMin - 5, average.TemperatureMin + 5);
temperatureHigh = MathHelpers.GetRandomDoubleNumber(Math.Max(average.TemperatureMax - 5, temperatureLow + 1), average.TemperatureMax + 5);
}
else
{
double previousTemperature = (previousWeather.TemperatureHigh + previousWeather.TemperatureLow) / 2;
int windIndex = windSpeedValues.ToList().IndexOf(previousWeather.WindSpeed);
windSpeed = windSpeedValues[rnd.Next(Math.Max(windIndexMin, windIndex - 2), Math.Min(windIndex + 2, windIndexMax))];
double minTemp = Math.Max(average.TemperatureMin, previousTemperature - 5);
temperatureLow = MathHelpers.GetRandomDoubleNumber(minTemp - 5, minTemp + 5);
double maxTemp = Math.Min(average.TemperatureMax, previousTemperature + 5);
temperatureHigh = MathHelpers.GetRandomDoubleNumber(Math.Max(maxTemp - 5, temperatureLow), maxTemp + 5);//rnd.NextDouble() * ((maxTemp + 5) - Math.Max(maxTemp - 5, temperatureLow + 2)) + Math.Max(maxTemp - 5, temperatureLow + 2);
}
double tempDiff = temperatureHigh - temperatureLow;
temperatureSunrise = temperatureLow + MathHelpers.GetRandomDoubleNumber(-2, Math.Min(tempDiff, 2));
temperatureSunset = temperatureHigh - MathHelpers.GetRandomDoubleNumber(-2, Math.Min(tempDiff, 2));
temperatureDayend = temperatureLow + rnd.Next(-2, 2);
temperature = (temperatureLow + temperatureHigh) / 2;
Boolean isOvercast = rnd.Next(100) < average.Precipitation;
if (isOvercast)
{
cover = Weather.CloudCover.Overcast;
precip = GetPrecipitation(temperature);
}
else
{
Weather.CloudCover[] notOvercastCovers = new Weather.CloudCover[] { Weather.CloudCover.Clear, Weather.CloudCover.Mostly_Cloudy, Weather.CloudCover.Partly_Cloudy };
cover = notOvercastCovers[rnd.Next(notOvercastCovers.Length)];
}
HourlyWeather[] hourlyTemperature = new HourlyWeather[24];
if (previousWeather == null)
hourlyTemperature[0] = new HourlyWeather(temperatureLow, cover, cover == Weather.CloudCover.Overcast ? GetPrecipitation(temperatureLow) : Weather.Precipitation.None, windSpeed, windDirection);
else
hourlyTemperature[0] = previousWeather.Temperatures[previousWeather.Temperatures.Length - 1];
double morningSteps = (temperatureSunrise - hourlyTemperature[0].Temperature) / (Weather.Sunrise - 1);
for (int i = 1; i <= Weather.Sunrise; i++)
{
double temp = hourlyTemperature[i - 1].Temperature + morningSteps;
Weather.CloudCover hourlyCover = rnd.Next(3) == 0 ? coverValues[rnd.Next(coverValues.Length)] : cover;
int windspeedIndex = windSpeedValues.ToList().IndexOf(windSpeed);
Weather.eWindSpeed[] hourlyWindspeedValues = new Weather.eWindSpeed[] { windSpeed, windSpeed, windSpeed, hourlyTemperature[i - 1].WindSpeed, windspeedIndex > 0 ? (Weather.eWindSpeed)windspeedIndex - 1 : (Weather.eWindSpeed)windspeedIndex + 1, windspeedIndex < windSpeedValues.Length - 1 ? (Weather.eWindSpeed)windspeedIndex + 1 : (Weather.eWindSpeed)windspeedIndex - 1 };
Weather.eWindSpeed hourlyWindspeed = hourlyWindspeedValues[rnd.Next(hourlyWindspeedValues.Length)];
hourlyTemperature[i] = new HourlyWeather(temp, hourlyCover, hourlyCover == Weather.CloudCover.Overcast ? GetPrecipitation(temp) : Weather.Precipitation.None, hourlyWindspeed, windDirection);
}
double daySteps = (temperatureSunset - temperatureSunrise) / (Weather.Sunset - Weather.Sunrise - 1);
for (int i = Weather.Sunrise + 1; i < Weather.Sunset; i++)
{
Weather.CloudCover hourlyCover = rnd.Next(3) == 0 ? coverValues[rnd.Next(coverValues.Length)] : cover;
double temp = hourlyTemperature[i - 1].Temperature + daySteps;
if (hourlyCover != hourlyTemperature[i - 1].Cover && hourlyCover == Weather.CloudCover.Overcast)
temp -= MathHelpers.GetRandomDoubleNumber(1, 4);
if (hourlyCover != hourlyTemperature[i - 1].Cover && hourlyTemperature[i - 1].Cover == Weather.CloudCover.Overcast)
temp += MathHelpers.GetRandomDoubleNumber(1, 4);
int windspeedIndex = windSpeedValues.ToList().IndexOf(windSpeed);
Weather.eWindSpeed[] hourlyWindspeedValues = new Weather.eWindSpeed[] { windSpeed, windSpeed, windSpeed, hourlyTemperature[i - 1].WindSpeed, windspeedIndex > 0 ? (Weather.eWindSpeed)windspeedIndex - 1 : (Weather.eWindSpeed)windspeedIndex + 1, windspeedIndex < windSpeedValues.Length - 1 ? (Weather.eWindSpeed)windspeedIndex + 1 : (Weather.eWindSpeed)windspeedIndex - 1 };
Weather.eWindSpeed hourlyWindspeed = hourlyWindspeedValues[rnd.Next(hourlyWindspeedValues.Length)];
hourlyTemperature[i] = new HourlyWeather(temp, hourlyCover, hourlyCover == Weather.CloudCover.Overcast ? GetPrecipitation(temp) : Weather.Precipitation.None, hourlyWindspeed, windDirection);
}
double eveningSteps = (temperatureDayend - temperatureSunset) / (hourlyTemperature.Length - Weather.Sunset);
for (int i = Weather.Sunset; i < hourlyTemperature.Length; i++)
{
double temp = hourlyTemperature[i - 1].Temperature + eveningSteps;
Weather.CloudCover hourlyCover = rnd.Next(3) == 0 ? coverValues[rnd.Next(coverValues.Length)] : cover;
int windspeedIndex = windSpeedValues.ToList().IndexOf(windSpeed);
Weather.eWindSpeed[] hourlyWindspeedValues = new Weather.eWindSpeed[] { windSpeed, windSpeed, windSpeed, hourlyTemperature[i - 1].WindSpeed, windspeedIndex > 0 ? (Weather.eWindSpeed)windspeedIndex - 1 : (Weather.eWindSpeed)windspeedIndex + 1, windspeedIndex < windSpeedValues.Length - 1 ? (Weather.eWindSpeed)windspeedIndex + 1 : (Weather.eWindSpeed)windspeedIndex - 1 };
Weather.eWindSpeed hourlyWindspeed = hourlyWindspeedValues[rnd.Next(hourlyWindspeedValues.Length)];
hourlyTemperature[i] = new HourlyWeather(temp, hourlyCover, hourlyCover == Weather.CloudCover.Overcast ? GetPrecipitation(temp) : Weather.Precipitation.None, hourlyWindspeed, windDirection);
}
temperatureLow = hourlyTemperature.Min(t => t.Temperature);
temperatureHigh = hourlyTemperature.Max(t => t.Temperature);
cover = (from c in hourlyTemperature group c by c.Cover into g select new { Cover = g.Key, Qty = g.Count() }).OrderByDescending(g => g.Qty).First().Cover;
precip = (from c in hourlyTemperature group c by c.Precip into g select new { Precip = g.Key, Qty = g.Count() }).OrderByDescending(g => g.Qty).First().Precip;
Weather weather = new Weather(date, windSpeed, windDirection, cover, precip, hourlyTemperature, temperatureLow, temperatureHigh);
return weather;
}
//creates the weather (5 days) for a number of airport with an average
public static void CreateAirportsWeather(List<Airport> airports, WeatherAverage average)
{
if (airports.Count > 0)
{
int maxDays = 5;
Weather[] weathers = new Weather[maxDays];
if (airports[0].Weather[0] == null)
{
for (int i = 0; i < maxDays; i++)
weathers[i] = CreateDayWeather(GameObject.GetInstance().GameTime.AddDays(i), i > 0 ? weathers[i - 1] : null, average);
}
else
{
for (int i = 1; i < maxDays; i++)
weathers[i - 1] = airports[0].Weather[i];
weathers[maxDays - 1] = CreateDayWeather(GameObject.GetInstance().GameTime.AddDays(maxDays - 1), weathers[maxDays - 2], average);
}
foreach (var airport in airports)
airport.Weather = weathers;
}
}
//adds a weather average to the list
public static void AddWeatherAverage(WeatherAverage average)
{
averages.Add(average);
}
//adds a weather average to the list
public static void AddWeatherAverage(WeatherAverage average)
{
averages.Add(average);
}
