protected void OnSetVelocities(bool isRandom, double speed)
{
if (this.SetVelocities == null)
{
return;
}
SetVelocitiesArgs args = new SetVelocitiesArgs();
args.Asteroids = chkVelocityAsteroid.IsChecked.Value;
args.Minerals = chkVelocityMineral.IsChecked.Value;
args.IsRandom = isRandom;
args.Speed = speed;
this.SetVelocities(this, args);
}
private void optionsPanel_SetVelocities(object sender, SetVelocitiesArgs e)
{
_setVelocityArgs = e;
_hasSetVelocities = false;
}
/// <summary>
/// This is raised by _world once per frame (this is raised, then it requests forces for bodies)
/// </summary>
private void World_Updating(object sender, WorldUpdatingArgs e)
{
try
{
if (_hasSetVelocities && _setVelocityArgs != null)
{
_hasSetVelocities = false;
_setVelocityArgs = null;
}
Vector3D shipPosition = _ship.PositionWorld.ToVector();
_ship.WorldUpdating(e.ElapsedTime);
#region Minerals
foreach (Mineral mineral in _map.GetMinerals())
{
mineral.WorldUpdating();
}
#endregion
#region Space Stations
SpaceStation currentlyOverStation = null;
foreach (SpaceStation station in _spaceStations)
{
station.WorldUpdating();
// See if the ship is over the station
Vector3D stationPosition = station.PositionWorld.ToVector();
stationPosition.Z = 0;
if ((stationPosition - shipPosition).LengthSquared < station.Radius * station.Radius)
{
currentlyOverStation = station;
}
}
// Store the station that the ship is over
if (currentlyOverStation == null)
{
statusMessage.Content = "";
}
else
{
statusMessage.Content = "Press space to enter station";
//TODO: Play a sound if this is the first time they entered the station's range
}
_currentlyOverStation = currentlyOverStation;
#endregion
// Camera
UpdateCameraPosition();
#region Asteroid Gravity
//TODO: It's too expensive for every small item to examine every other object each frame, and it's choppy when the calculations are
// intermitent (should do threads). Set up a vector field for the minerals and bots to be attracted to
//
// On second thought, I don't think this will work. It would be more efficient for the map to return objects in range, but that requires
// the map to store things different (I think for 2D it's a quad tree, and 3D is an oct tree?)
// Only doing asteroids - the ship does gravity calculation against the asteroids in it's apply force event
if (_hasGravity)
{
_asteroidGravityForces.Clear();
if (StaticRandom.NextDouble() < .05d) // I don't want to do this every frame
{
// Init my forces list
for (int cntr = 0; cntr < _asteroids.Count; cntr++)
{
_asteroidGravityForces.Add(_asteroids[cntr].PhysicsBody, new Vector3D());
}
// Apply Gravity
for (int outerCntr = 0; outerCntr < _asteroids.Count - 1; outerCntr++)
{
Point3D centerMass1 = _asteroids[outerCntr].PositionWorld;
for (int innerCntr = outerCntr + 1; innerCntr < _asteroids.Count; innerCntr++)
{
#region Apply Gravity
Point3D centerMass2 = _asteroids[innerCntr].PositionWorld;
Vector3D gravityLink = centerMass1 - centerMass2;
double force = GRAVITATIONALCONSTANT * (_asteroids[outerCntr].Mass * _asteroids[innerCntr].Mass) / gravityLink.LengthSquared;
gravityLink.Normalize();
gravityLink *= force;
_asteroidGravityForces[_asteroids[innerCntr].PhysicsBody] += gravityLink;
_asteroidGravityForces[_asteroids[outerCntr].PhysicsBody] -= gravityLink;
#endregion
}
}
// I also need to attract to the ship, because it's attracted to the asteroids
// I can't because the ship is attracted every frame, so the forces are unbalanced
Point3D shipPos = _ship.PositionWorld;
double shipMass = _ship.PhysicsBody.Mass;
for (int cntr = 0; cntr < _asteroids.Count; cntr++)
{
#region Apply Gravity
Vector3D gravityLink = shipPos - _asteroids[cntr].PositionWorld;
double force = GRAVITATIONALCONSTANT * (_asteroids[cntr].Mass * shipMass) / gravityLink.LengthSquared;
gravityLink.Normalize();
gravityLink *= force;
_asteroidGravityForces[_asteroids[cntr].PhysicsBody] -= gravityLink;
#endregion
}
}
}
#endregion
_map.WorldUpdating();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}
protected void OnSetVelocities(bool isRandom, double speed)
{
if (this.SetVelocities == null)
{
return;
}
SetVelocitiesArgs args = new SetVelocitiesArgs();
args.Asteroids = chkVelocityAsteroid.IsChecked.Value;
args.Minerals = chkVelocityMineral.IsChecked.Value;
args.IsRandom = isRandom;
args.Speed = speed;
this.SetVelocities(this, args);
}
private void optionsPanel_SetVelocities(object sender, SetVelocitiesArgs e)
{
_setVelocityArgs = e;
_hasSetVelocities = false;
}
/// <summary>
/// This is raised by _world once per frame (this is raised, then it requests forces for bodies)
/// </summary>
private void World_Updating(object sender, WorldUpdatingArgs e)
{
try
{
if (_hasSetVelocities && _setVelocityArgs != null)
{
_hasSetVelocities = false;
_setVelocityArgs = null;
}
Vector3D shipPosition = _ship.PositionWorld.ToVector();
_ship.WorldUpdating(e.ElapsedTime);
#region Minerals
foreach (Mineral mineral in _map.GetMinerals())
{
mineral.WorldUpdating();
}
#endregion
#region Space Stations
SpaceStation currentlyOverStation = null;
foreach (SpaceStation station in _spaceStations)
{
station.WorldUpdating();
// See if the ship is over the station
Vector3D stationPosition = station.PositionWorld.ToVector();
stationPosition.Z = 0;
if ((stationPosition - shipPosition).LengthSquared < station.Radius * station.Radius)
{
currentlyOverStation = station;
}
}
// Store the station that the ship is over
if (currentlyOverStation == null)
{
statusMessage.Content = "";
}
else
{
statusMessage.Content = "Press space to enter station";
//TODO: Play a sound if this is the first time they entered the station's range
}
_currentlyOverStation = currentlyOverStation;
#endregion
// Camera
UpdateCameraPosition();
#region Asteroid Gravity
//TODO: It's too expensive for every small item to examine every other object each frame, and it's choppy when the calculations are
// intermitent (should do threads). Set up a vector field for the minerals and bots to be attracted to
//
// On second thought, I don't think this will work. It would be more efficient for the map to return objects in range, but that requires
// the map to store things different (I think for 2D it's a quad tree, and 3D is an oct tree?)
// Only doing asteroids - the ship does gravity calculation against the asteroids in it's apply force event
if (_hasGravity)
{
_asteroidGravityForces.Clear();
if (StaticRandom.NextDouble() < .05d) // I don't want to do this every frame
{
// Init my forces list
for (int cntr = 0; cntr < _asteroids.Count; cntr++)
{
_asteroidGravityForces.Add(_asteroids[cntr].PhysicsBody, new Vector3D());
}
// Apply Gravity
for (int outerCntr = 0; outerCntr < _asteroids.Count - 1; outerCntr++)
{
Point3D centerMass1 = _asteroids[outerCntr].PositionWorld;
for (int innerCntr = outerCntr + 1; innerCntr < _asteroids.Count; innerCntr++)
{
#region Apply Gravity
Point3D centerMass2 = _asteroids[innerCntr].PositionWorld;
Vector3D gravityLink = centerMass1 - centerMass2;
double force = GRAVITATIONALCONSTANT * (_asteroids[outerCntr].Mass * _asteroids[innerCntr].Mass) / gravityLink.LengthSquared;
gravityLink.Normalize();
gravityLink *= force;
_asteroidGravityForces[_asteroids[innerCntr].PhysicsBody] += gravityLink;
_asteroidGravityForces[_asteroids[outerCntr].PhysicsBody] -= gravityLink;
#endregion
}
}
// I also need to attract to the ship, because it's attracted to the asteroids
// I can't because the ship is attracted every frame, so the forces are unbalanced
Point3D shipPos = _ship.PositionWorld;
double shipMass = _ship.PhysicsBody.Mass;
for (int cntr = 0; cntr < _asteroids.Count; cntr++)
{
#region Apply Gravity
Vector3D gravityLink = shipPos - _asteroids[cntr].PositionWorld;
double force = GRAVITATIONALCONSTANT * (_asteroids[cntr].Mass * shipMass) / gravityLink.LengthSquared;
gravityLink.Normalize();
gravityLink *= force;
_asteroidGravityForces[_asteroids[cntr].PhysicsBody] -= gravityLink;
#endregion
}
}
}
#endregion
_map.WorldUpdating();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), this.Title, MessageBoxButton.OK, MessageBoxImage.Error);
}
}