public void RemoveJoint(IAxleJoint joint)
{
if (!(joint is AxleJoint))
{
throw new ArgumentException("Joint does not belong to this physics engine.");
}
var j = ((AxleJoint)joint).innerJoint;
j.Lifetime.IsExpired = true;
}
/// <summary>
/// Lisää olion rakenteeseen.
/// </summary>
/// <param name="obj">Lisättävä olio</param>
public void Add(IGameObject obj)
{
if (!(obj is PhysicsObject))
{
throw new NotImplementedException("Currently only PhysicsObjects can be added to a structure.");
}
if (!IsAddedToGame)
{
// Add to game and use relative coordinates
obj.Position += this.Position;
if (!obj.IsAddedToGame)
{
Game.Instance.Add(obj);
}
}
PhysicsObject physObj = (PhysicsObject)obj;
physObj.ParentStructure = this;
physObj.IsVisible = _isVisible;
physObj.IgnoresGravity = _ignoresGravity;
physObj.IgnoresCollisionResponse = _ignoresCollisionResponse;
physObj.IgnoresExplosions = _ignoresExplosions;
physObj.IgnoresPhysicsLogics = _ignoresPhysicsLogics;
physObj.CollisionIgnoreGroup = _collisionIgnoreGroup;
physObj.CollisionIgnorer = _collisionIgnorer;
physObj.Restitution = _restitution;
physObj.StaticFriction = _sfriction;
physObj.KineticFriction = _kfriction;
physObj.LinearDamping = _linearDamping;
physObj.AngularDamping = _angularDamping;
physObj.Collided += this.OnCollided;
var game = PhysicsGameBase.Instance;
foreach (var existing in objects)
{
IAxleJoint joint = game.Engine.CreateJoint(physObj, existing, existing.AbsolutePosition);
joint.Softness = _softness;
Joints.Add(joint);
game.Add(joint);
}
objects.Add(physObj);
CalculateMomentOfInertia();
}
void OnJointAdded(IAxleJoint j)
{
if (!j.Object1.IsAddedToGame)
{
j.SetEngine(Engine);
j.Object1.AddedToGame += j.AddToEngine;
}
else if (j.Object2 != null && !j.Object2.IsAddedToGame)
{
j.SetEngine(Engine);
j.Object2.AddedToGame += j.AddToEngine;
}
else
{
Engine.AddJoint(j);
}
}
private void AddWheels()
{
PhysicsGameBase pg = Game.Instance as PhysicsGameBase;
if (pg == null)
{
throw new InvalidOperationException("Cannot have a tank in non-physics game");
}
const int wheelCount = 6;
double r = this.Width / (2 * wheelCount);
double left = this.X - this.Width / 2 + r;
double[] wheelYPositions = new double[wheelCount];
for (int i = 0; i < wheelYPositions.Length; i++)
{
wheelYPositions[i] = this.Y - this.Height / 2;
}
wheelYPositions[0] = wheelYPositions[wheelCount - 1] = this.Position.Y - (this.Height * 3 / 8);
for (int i = 0; i < wheelCount; i++)
{
PhysicsObject wheel = new PhysicsObject(2 * r, 2 * r, Shape.Circle);
wheel.Mass = this.Mass / 20;
wheel.Color = Color.Gray;
wheel.CollisionIgnorer = this.CollisionIgnorer;
wheel.Body.AngularDamping = 0.95f;
wheel.KineticFriction = 1.0;
wheels.Add(wheel);
pg.Add(wheel);
Vector axlePos = new Vector(left + i * (this.Width / wheelCount), wheelYPositions[i]);
wheel.Position = axlePos;
IAxleJoint joint = pg.Engine.CreateJoint(this, wheel, new Vector(axlePos.X, axlePos.Y));
joint.Softness = 0.01f;
joints.Add(joint);
pg.Add(joint);
}
}
public void RemoveJoint(IAxleJoint joint)
{
}
public void AddJoint(IAxleJoint joint)
{
throw new NotImplementedException("Joints are not implemented in SimplePhysics yet.");
}
/// <summary>
/// Poistaa liitoksen pelistä.
/// </summary>
/// <param name="j"></param>
internal void Remove(IAxleJoint j)
{
Joints.Remove(j);
}
/// <summary>
/// Lisää liitoksen peliin.
/// </summary>
public void Add(IAxleJoint j)
{
Joints.Add(j);
}
void OnJointRemoved(IAxleJoint j)
{
Engine.RemoveJoint(j);
}