internal static void UpdateLighting()
{
//Check that we have more than one light definition & that the array is not null
if (DynamicLighting == false || LightDefinitions == null || LightDefinitions.Length < 2)
{
return;
}
var Time = Game.SecondsSinceMidnight;
//Convert to absolute time of day
//Use a while loop as it's possible to run through two days
while (Time > 86400)
{
Time -= 86400;
}
//Run through the array
int j = 0;
for (int i = j; i < LightDefinitions.Length; i++)
{
if (Time < LightDefinitions[i].Time)
{
break;
}
j = i;
}
//We now know that our light definition is between the values defined in j and j + 1 (Or 0 if this is the end of the array)
int k;
if (j == 0)
{
//Our NEW light is to be the first entry in the array
//This means the OLD light is the last entry, but j and k do not need reversing
k = 0;
j = LightDefinitions.Length - 1;
}
else if (j == LightDefinitions.Length - 1)
{
//We are wrapping around to the end of the array
//Reverse j and k, as we have not yet passed the time for the first array entry
j = 0;
k = LightDefinitions.Length - 1;
}
else
{
//Somewhere in the middle, so the NEW light is simply one greater
k = j + 1;
}
int t1 = LightDefinitions[j].Time, t2 = LightDefinitions[k].Time;
double cb1 = LightDefinitions[j].CabBrightness, cb2 = LightDefinitions[k].Time;
//Calculate, inverting if necessary
//Ensure we're not about to divide by zero
if (t2 == 0)
{
t2 = 1;
}
if (t1 == 0)
{
t1 = 1;
}
//Calculate the percentage
double mu;
if (k == LightDefinitions.Length - 1)
{
//Wrapping around
mu = (86400 - Time + t1) / (86400 - t2 + t1);
}
else
{
mu = (Time - t1) / (t2 - t1);
}
//Calculate the final colors and positions
OptionDiffuseColor = Color24.CosineInterpolate(LightDefinitions[j].DiffuseColor, LightDefinitions[k].DiffuseColor, mu);
OptionAmbientColor = Color24.CosineInterpolate(LightDefinitions[j].AmbientColor, LightDefinitions[k].AmbientColor, mu);
OptionLightPosition = Vector3.CosineInterpolate(LightDefinitions[j].LightPosition,LightDefinitions[k].LightPosition, mu);
//Interpolate the cab brightness value
var mu2 = (1 - System.Math.Cos(mu * System.Math.PI)) / 2;
DynamicCabBrightness = (cb1 * (1 - mu2) + cb2 * mu2);
//Reinitialize the lighting model with the new information
InitializeLighting();
//NOTE: This does not refresh the display lists
//If we sit in place with extreme time acceleration (1000x) lighting for faces may appear a little inconsistant
}
} //This renders the frame
protected override void OnRenderFrame(FrameEventArgs e)
{
if (!firstFrame)
{
//If the load is not complete, then we shouldn't be running the mainloop
return;
}
double TimeElapsed = RenderTimeElapsed;
double RealTimeElapsed = RenderRealTimeElapsed;
//Next, check if we're in paused/ in a menu
if (Game.CurrentInterface != Game.InterfaceType.Normal)
{
MainLoop.UpdateControlRepeats(0.0);
MainLoop.ProcessKeyboard();
MainLoop.ProcessControls(0.0);
if (Game.CurrentInterface == Game.InterfaceType.Pause)
{
System.Threading.Thread.Sleep(10);
}
//Renderer.UpdateLighting();
Renderer.RenderScene(TimeElapsed);
Program.currentGameWindow.SwapBuffers();
if (MainLoop.Quit)
{
Close();
}
//If the menu state has not changed, don't update the rendered simulation
return;
}
//Use the OpenTK framerate as this is much more accurate
//Also avoids running a calculation
if (TotalTimeElapsedForInfo >= 0.2)
{
Game.InfoFrameRate = RenderFrequency;
TotalTimeElapsedForInfo = 0.0;
}
if (Game.PreviousInterface != Game.InterfaceType.Normal)
{
ObjectManager.UpdateAnimatedWorldObjects(0.0, false);
Game.PreviousInterface = Game.InterfaceType.Normal;
}
else
{
ObjectManager.UpdateAnimatedWorldObjects(TimeElapsed, false);
}
//We need to update the camera position in the render sequence
//Not doing this means that the camera doesn't move
// update in one piece
if (World.CameraMode == World.CameraViewMode.Interior | World.CameraMode == World.CameraViewMode.InteriorLookAhead)
{
//Update the in-car camera based upon the current driver car (Cabview or passenger view)
TrainManager.PlayerTrain.Cars[World.CameraCar].UpdateCamera();
}
else if (World.CameraMode == World.CameraViewMode.Exterior)
{
//Update the camera position based upon the relative car position
TrainManager.PlayerTrain.Cars[World.CameraCar].UpdateCamera();
}
if (World.CameraRestriction == World.CameraRestrictionMode.NotAvailable)
{
World.UpdateDriverBody(TimeElapsed);
}
//Check if we are running at an accelerated time factor-
//Camera motion speed should be the same whatever the game speed is
if (TimeFactor != 1)
{
World.UpdateAbsoluteCamera(TimeElapsed / TimeFactor);
}
else
{
World.UpdateAbsoluteCamera(TimeElapsed);
}
TrainManager.UpdateTrainObjects(TimeElapsed, false);
if (World.CameraMode == World.CameraViewMode.Interior | World.CameraMode == World.CameraViewMode.InteriorLookAhead | World.CameraMode == World.CameraViewMode.Exterior)
{
ObjectManager.UpdateVisibility(World.CameraTrackFollower.TrackPosition + World.CameraCurrentAlignment.Position.Z);
int d = TrainManager.PlayerTrain.DriverCar;
World.CameraSpeed = TrainManager.PlayerTrain.Cars[d].Specs.CurrentSpeed;
}
else
{
World.CameraSpeed = 0.0;
}
World.CameraAlignmentDirection = new World.CameraAlignment();
if (MainLoop.Quit)
{
Program.currentGameWindow.Exit();
}
Renderer.UpdateLighting();
Renderer.RenderScene(TimeElapsed);
Sounds.Update(TimeElapsed, Interface.CurrentOptions.SoundModel);
Program.currentGameWindow.SwapBuffers();
Game.UpdateBlackBox();
// pause/menu
// limit framerate
if (MainLoop.LimitFramerate)
{
System.Threading.Thread.Sleep(10);
}
MainLoop.UpdateControlRepeats(RealTimeElapsed);
MainLoop.ProcessKeyboard();
World.UpdateMouseGrab(TimeElapsed);
MainLoop.ProcessControls(TimeElapsed);
for (int i = 0; i < JoystickManager.AttachedJoysticks.Length; i++)
{
var railDriver = JoystickManager.AttachedJoysticks[i] as JoystickManager.Raildriver;
if (railDriver != null)
{
if (Interface.CurrentOptions.RailDriverMPH)
{
railDriver.SetDisplay((int)(TrainManager.PlayerTrain.Cars[TrainManager.PlayerTrain.DriverCar].Specs
.CurrentPerceivedSpeed * 2.23694));
}
else
{
railDriver.SetDisplay((int)(TrainManager.PlayerTrain.Cars[TrainManager.PlayerTrain.DriverCar].Specs
.CurrentPerceivedSpeed * 3.6));
}
}
}
RenderRealTimeElapsed = 0.0;
RenderTimeElapsed = 0.0;
#if DEBUG
MainLoop.CheckForOpenGlError("MainLoop");
#endif
if (Interface.CurrentOptions.UnloadUnusedTextures)
{
Renderer.UnloadUnusedTextures(TimeElapsed);
Renderer.LastBoundTexture = null;
}
// finish
try
{
Interface.SaveLogs();
}
catch { }
}
