public void WorldLocationDistanceZeroTest()
{
WorldLocation location1 = new WorldLocation();
WorldLocation location2 = new WorldLocation();
Assert.IsTrue(WorldLocation.Within(location1, location2, 0));
Assert.AreEqual(0, WorldLocation.GetDistanceSquared(location1, location2));
Assert.AreEqual(Microsoft.Xna.Framework.Vector3.Zero, WorldLocation.GetDistance(location1, location2));
Assert.AreEqual(Microsoft.Xna.Framework.Vector2.Zero, WorldLocation.GetDistance2D(location1, location2));
}
public void WorldLocationDistanceTest()
{
WorldLocation location1 = new WorldLocation();
WorldLocation location2 = new WorldLocation(1, -1, Microsoft.Xna.Framework.Vector3.Zero);
Assert.AreEqual(2048 * 2048 + 2048 * 2048, WorldLocation.GetDistanceSquared(location1, location2));
Assert.IsTrue(WorldLocation.Within(location1, location2, (float)Math.Sqrt(2048 * 2048 * 2) + 1));
Assert.AreEqual(new Microsoft.Xna.Framework.Vector3(2048, 0, -2048), WorldLocation.GetDistance(location1, location2));
Assert.AreEqual(new Microsoft.Xna.Framework.Vector2(2048, -2048), WorldLocation.GetDistance2D(location1, location2));
}
public override void PrepareFrame(RenderFrame frame, ORTS.Common.ElapsedTime elapsedTime, bool updateFull)
{
if (updateFull)
{
var labels = Labels;
var newLabels = new Dictionary <TrainCar, LabelPrimitive>(labels.Count);
var cars = Owner.Viewer.World.Trains.Cars;
var cameraLocation = Owner.Viewer.Camera.CameraWorldLocation;
foreach (var car in cars.Keys)
{
// Calculates distance between camera and platform label.
var distance = WorldLocation.GetDistance(car.WorldPosition.WorldLocation, cameraLocation).Length();
if (distance <= MaximumDistance)
{
if ((State == DisplayState.Cars) || (State == DisplayState.Trains && (car.Train == null || car.Train.FirstCar == car)))
{
if (labels.ContainsKey(car))
{
newLabels[car] = labels[car];
}
else
{
newLabels[car] = new LabelPrimitive(Owner.Label3DMaterial, Color.Blue, Color.White, car.CarHeightM)
{
Position = car.WorldPosition
}
};
newLabels[car].Text = State == DisplayState.Cars || car.Train == null ? car.CarID : car.Train.Name;
// Change color with distance.
var ratio = (MathHelper.Clamp(distance, MinimumDistance, MaximumDistance) - MinimumDistance) / (MaximumDistance - MinimumDistance);
newLabels[car].Color.A = newLabels[car].Outline.A = (byte)MathHelper.Lerp(255, 0, ratio);
}
}
}
Labels = newLabels;
}
foreach (var primitive in Labels.Values)
{
frame.AddPrimitive(Owner.Label3DMaterial, primitive, RenderPrimitiveGroup.Labels, ref Identity);
}
}
public override void PrepareFrame(RenderFrame frame, ORTS.Common.ElapsedTime elapsedTime, bool updateFull)
{
if (updateFull)
{
UpdateLabelLists();
var labels = Labels;
var newLabels = new Dictionary <TrItemLabel, LabelPrimitive>(labels.Count);
var worldFiles = Owner.Viewer.World.Scenery.WorldFiles;
var cameraLocation = Owner.Viewer.Camera.CameraWorldLocation;
foreach (var worldFile in worldFiles)
{
if ((State & DisplayState.Platforms) != 0 && worldFile.platforms != null)
{
foreach (var platform in worldFile.platforms)
{
if (State == DisplayState.Auto && Platforms != null && (!Platforms.ContainsKey(platform.ItemName) || !Platforms[platform.ItemName]))
{
continue;
}
// Calculates distance between camera and platform label.
var distance = WorldLocation.GetDistance(platform.Location.WorldLocation, cameraLocation).Length();
if (distance <= MaximumDistancePlatform)
{
if (labels.ContainsKey(platform))
{
newLabels[platform] = labels[platform];
}
else
{
newLabels[platform] = new LabelPrimitive(Owner.Label3DMaterial, Color.Yellow, Color.Black, 0)
{
Position = platform.Location, Text = platform.ItemName
}
};
// Change color with distance.
var ratio = (MathHelper.Clamp(distance, MinimumDistance, MaximumDistancePlatform) - MinimumDistance) / (MaximumDistancePlatform - MinimumDistance);
newLabels[platform].Color.A = newLabels[platform].Outline.A = (byte)MathHelper.Lerp(255, 0, ratio);
}
}
}
if ((State & DisplayState.Sidings) != 0 && worldFile.sidings != null)
{
foreach (var siding in worldFile.sidings)
{
if (State == DisplayState.Auto && Sidings != null && (!Sidings.ContainsKey(siding.ItemName) || !Sidings[siding.ItemName]))
{
continue;
}
// Calculates distance between camera and siding label.
var distance = WorldLocation.GetDistance(siding.Location.WorldLocation, cameraLocation).Length();
if (distance <= MaximumDistanceSiding)
{
if (labels.ContainsKey(siding))
{
newLabels[siding] = labels[siding];
}
else
{
newLabels[siding] = new LabelPrimitive(Owner.Label3DMaterial, Color.Orange, Color.Black, 0)
{
Position = siding.Location, Text = siding.ItemName
}
};
// Change color with distance.
var ratio = (MathHelper.Clamp(distance, MinimumDistance, MaximumDistanceSiding) - MinimumDistance) / (MaximumDistanceSiding - MinimumDistance);
newLabels[siding].Color.A = newLabels[siding].Outline.A = (byte)MathHelper.Lerp(255, 0, ratio);
}
}
}
}
Labels = newLabels;
}
foreach (var primitive in Labels.Values)
{
frame.AddPrimitive(Owner.Label3DMaterial, primitive, RenderPrimitiveGroup.Labels, ref Identity);
}
}
