public void Tick(object s, EventArgs e)
{
foreach (var movingObject in _objects.Rockets)
{
movingObject.DragForces = new List <Force>();
movingObject.GravityForces = new List <Force>();
foreach (var gravityObject in _objects.Terrains)
{
var distance = PointCalculator.Distance(movingObject.Location, gravityObject.Location);
var angle = PointCalculator.CalculateAngle(movingObject.Location, gravityObject.Location);
var force = GravityCalculator.CalculateGravity(movingObject.Mass, gravityObject.Mass, distance, angle);
movingObject.GravityForces.Add(force);
var altitude = distance - gravityObject.Diameter;
if (altitude < 100000)
{
// Drag Relevant
var rocketForceAngle = movingObject._angle;
var dragAngle = Angle.FromDegrees(movingObject.Speed.Angle.Degree + 180);
var speedDirectionDiff =
Angle.FromDegrees(rocketForceAngle.Degree - movingObject.Speed.Angle.Degree);
var cd = movingObject.Drag.GetDragCoefficient(speedDirectionDiff);
var a = movingObject.Drag.GetArea(speedDirectionDiff);
var p = AtmosphereCalculator.CalculateAirDensityAtAltitude(altitude);
var dragForce = DragCalculator.CalculateDrag(dragAngle, cd, p, movingObject.Speed, a);
movingObject.DragForces.Add(dragForce);
}
}
movingObject.Tick();
}
}
private void DrawMainObjectPath(ProjectedPositionCalculator ppCalc)
{
var position = _objects.MainObject.Location;
var speed = _objects.MainObject.Speed;
var mass = _objects.MainObject.Mass;
for (var i = 0; i < 300; i++)
{
var forces = new Force(Angle.Zero, 0);
foreach (var planet in _objects.Terrains)
{
var distance = PointCalculator.Distance(position, planet.Location);
var angle = PointCalculator.CalculateAngle(position, planet.Location);
forces += GravityCalculator.CalculateGravity(mass, planet.Mass, distance, angle);
}
var acceleration = forces.GetAcceleration(mass);
speed += acceleration.GetSpeed(new TimeSpan(0, 0, 0, 10));
if (speed.Value > 50000)
{
break;
}
var flownDistance = speed.GetDistance(new TimeSpan(0, 0, 0, 10)).CalculateXAndY();
position.X += (float)flownDistance.X;
position.Y += (float)flownDistance.Y;
var projectedPosition = ppCalc.ProjectPoint(position);
_graphicsBuffer.Graphics.FillRectangle(new SolidBrush(Color.White), projectedPosition.X,
projectedPosition.Y, 1, 1);
}
}