/// <summary>
/// Updates the physics bodies and resolves all forces.
/// </summary>
private void Update(TimeStep timeStep)
{
ResolveMassiveBodyParents();
ResolveSpaceCraftParents();
AdjustSpeedForBurns(timeStep);
double targetDt = (_isPaused) ? 0 : timeStep.Dt;
// Update all bodies according to the timestep
for (int i = 0; i < timeStep.UpdateLoops; i++)
{
// Resolve n body massive body forces
foreach (IMassiveBody bodyA in _massiveBodies)
{
bodyA.ResetAccelerations();
foreach (IMassiveBody bodyB in _massiveBodies)
{
if (bodyA == bodyB)
{
continue;
}
bodyA.ResolveGravitation(bodyB);
}
}
// Reslove spacecraft forces
foreach (SpaceCraftBase spaceCraft in _spaceCrafts)
{
spaceCraft.ResetAccelerations();
foreach (MassiveBodyBase massiveBody in _massiveBodies)
{
spaceCraft.ResolveGravitation(massiveBody);
if (spaceCraft.GravitationalParent == massiveBody)
{
spaceCraft.ResolveAtmopsherics(massiveBody);
}
}
}
// Don't update the animations every frame
if (timeStep.UpdateLoops < 16)
{
foreach (ISpaceCraft spaceCraft in _spaceCrafts)
{
spaceCraft.UpdateAnimations(timeStep);
}
}
// Update oribitng bodies
foreach (IGravitationalBody gravitationalBody in _gravitationalBodies)
{
gravitationalBody.Update(targetDt);
}
foreach (ISpaceCraft spaceCraft in _spaceCrafts)
{
spaceCraft.UpdateController(targetDt);
}
_totalElapsedSeconds += targetDt;
}
_camera.Update(TimeStep.RealTimeDt);
_eventManager.Update(TimeStep.RealTimeDt);
// Fixed update all gravitational bodies
foreach (IGravitationalBody body in _gravitationalBodies)
{
body.FixedUpdate(timeStep);
}
var targetSpaceCraft = _gravitationalBodies[_targetIndex] as ISpaceCraft;
if (targetSpaceCraft != null)
{
if (targetSpaceCraft.Controller.IsPrograde)
{
_progradeButton.Enable();
}
else
{
_progradeButton.Disable();
}
if (targetSpaceCraft.Controller.IsRetrograde)
{
_retrogradeButton.Enable();
}
else
{
_retrogradeButton.Disable();
}
}
_scrollRate = MathHelper.Lerp(_scrollRate, _targetScrollRate, 0.1f);
_targetScrollRate = MathHelper.Lerp(_targetScrollRate, 0, 0.1f);
if (_camera.Zoom > 1)
{
double scroll = Math.Pow(_camera.Zoom, 1.05f) * _scrollRate;
_camera.ChangeZoom(scroll);
}
else
{
_camera.ChangeZoom(_scrollRate);
}
SetCameraRotation();
}
/// <summary>
/// Updates the physics bodies and resolves all forces.
/// </summary>
private void Update(TimeStep timeStep)
{
ResolveMassiveBodyParents();
_spaceCraftManager.ResolveGravitionalParents(_massiveBodies);
AdjustSpeedForBurns(timeStep);
double targetDt = _isPaused ? 0 : timeStep.Dt;
// Update all bodies according to the timestep
for (int i = 0; i < timeStep.UpdateLoops; i++)
{
// Resolve n body massive body forces
foreach (IMassiveBody bodyA in _massiveBodies)
{
bodyA.ResetAccelerations();
foreach (IMassiveBody bodyB in _massiveBodies)
{
if (bodyA == bodyB)
{
continue;
}
bodyA.ResolveGravitation(bodyB);
}
}
_spaceCraftManager.ResolveForces(_massiveBodies);
_spaceCraftManager.Update(timeStep, targetDt);
// Update bodies
foreach (IGravitationalBody gravitationalBody in _gravitationalBodies)
{
gravitationalBody.Update(targetDt);
}
_totalElapsedSeconds += targetDt;
}
_camera.Update(TimeStep.RealTimeDt);
_eventManager.Update(TimeStep.RealTimeDt);
// Fixed update all gravitational bodies
foreach (IGravitationalBody body in _gravitationalBodies)
{
body.FixedUpdate(timeStep);
}
var targetSpaceCraft = _gravitationalBodies[_targetIndex] as ISpaceCraft;
if (targetSpaceCraft != null)
{
if (targetSpaceCraft.Controller.IsPrograde)
{
_progradeButton.Enable();
}
else
{
_progradeButton.Disable();
}
if (targetSpaceCraft.Controller.IsRetrograde)
{
_retrogradeButton.Enable();
}
else
{
_retrogradeButton.Disable();
}
}
_scrollRate = MathHelper.Lerp(_scrollRate, _targetScrollRate, 0.1f);
_targetScrollRate = MathHelper.Lerp(_targetScrollRate, 0, 0.1f);
if (_camera.Zoom > 1)
{
double scroll = Math.Pow(_camera.Zoom, 1.05f) * _scrollRate;
_camera.ChangeZoom(scroll);
}
else
{
_camera.ChangeZoom(_scrollRate);
}
SetCameraRotation();
}