/// <summary>
/// Move platforms in the world to the new place.
/// based on <see cref="Platform"/> <see cref="Spacial.Movement"/> data and the time that passed.
/// </summary>
/// <param name="timePassed">The time that passed from the last update</param>
public void MovePlatformsNextStep(Duration timePassed)
{
foreach (var platform in platforms)
{
// Get current position and movement data
var platformPosition = platform.Spacial.Position;
var platformMovement = platform.Spacial.Movement;
// Translate position to a Geodesy Coordinate instance
var originalGeoPosition = new GlobalCoordinates(
latitude: new Geodesy.Angle(platformPosition.Latitude.Degrees),
longitude: new Geodesy.Angle(platformPosition.Longitude.Degrees));
// Calculate the distance in meters based on the time that passed and platform speed
var distanceInMeters = timePassed.Seconds * platformMovement.Speed.MetersPerSecond;
// Calculate and get the position where the platform should be now
var nextGeoPosition =
geodeticCalculator.CalculateEndingGlobalCoordinates(
start: originalGeoPosition,
startBearing: new Geodesy.Angle(platformMovement.Course.Degrees),
distance: distanceInMeters);
// Update the platform position
platformPosition.Latitude = Angle.FromDegrees(nextGeoPosition.Latitude.Degrees);
platformPosition.Longitude = Angle.FromDegrees(nextGeoPosition.Longitude.Degrees);
}
}
/// <summary>
/// Generate new world platforms (remove current if exists)
/// </summary>
/// <param name="platformsAmount">Number of platforms to generate</param>
public void GenerateWorld(int platformsAmount)
{
// Clean up platform collection
platforms.Clear();
for (int i = 0; i < platformsAmount; i++)
{
// Generate a new platform with random properties
var platformType = random.Next(0, 2) == 1
? PlatformType.Aircraft
: PlatformType.SurfaceVessel;
platforms.Add(new Platform(
id: i,
name: $"World:{platformType}:{i}",
platformType: platformType,
spacial: new Spacial(
position: new Position(
latitude: Angle.FromDegrees(random.Next((int)LOWEST_LATITUDE.Degrees, (int)HIGHST_LATITUDE.Degrees) + random.NextDouble()),
longitude: Angle.FromDegrees(random.Next((int)LOWEST_LONGITUDE.Degrees, (int)HIGHST_LONGITUDE.Degrees) + random.NextDouble()),
altitude: Length.FromMeters(platformType != PlatformType.Aircraft
? 0
: random.Next((int)MIN_AIRCRAFT_HIGTH.Meters, (int)MAX_AIRCRAFT_HIGTH.Meters))),
movement: new Movement(
speed: Speed.FromMetersPerSecond(platformType != PlatformType.Aircraft
? random.Next((int)MIN_SURFACE_SPEED.MetersPerSecond, (int)MAX_SURFACE_SPEED.MetersPerSecond)
: random.Next((int)MIN_AIRCRAFT_SPEED.MetersPerSecond, (int)MAX_AIRCRAFT_SPEED.MetersPerSecond)),
course: Angle.FromDegrees(random.Next(0, 360))
)
)
));;
}
}
