public RigidComposite( Engine engine, params Particle[] particles )
{
this.particles = particles;
foreach ( Particle particle in particles )
{
engine.Add( particle );
}
for ( int index = 0; index < particles.Length; index += 2 )
{
int index1 = ( index + 1 < particles.Length ) ? index + 1 : 0;
int index2 = ( index1 + 1 < particles.Length ) ? index1 + 1 : 0;
AngularConstraint constraint = new AngularConstraint(
particles[ index ], particles[ index1 ], particles[ index2 ] );
engine.Add( constraint );
}
}
protected void Create(double x, double y)
{
// create the bicycle
double leftX = x - 18;
double rightX = x + 18;
double widthX = rightX - leftX;
double midX = leftX + (widthX / 2);
double topY = y + 0;
// wheels
wheelA = new Wheel(leftX, topY, 12);
Add(wheelA, "wheelA");
wheelB = new Wheel(rightX, topY, 12);
Add(wheelB, "wheelB");
// body
PhysicsObject[] objs;
SpringBox rectA = new SpringBox(midX, topY, widthX, 15, out objs);
foreach (PhysicsObject o in objs)
{
Add(o);
}
// wheel struts
SpringConstraint conn1 = new SpringConstraint(wheelA, rectA.P3);
Add(conn1);
SpringConstraint conn2 = new SpringConstraint(wheelB, rectA.P2);
Add(conn2);
SpringConstraint conn1a = new SpringConstraint(wheelA, rectA.P0);
Add(conn1a);
SpringConstraint conn2a = new SpringConstraint(wheelB, rectA.P1);
Add(conn2a);
// triangle top of car
personHead = new CircleParticle(midX, topY - 30, 5);
Add(personHead);
personHead.Contact += delegate(object sender, EventArgs e)
{
Kill();
};
sHeadToWheelA = new SpringConstraint(personHead, wheelA);
Add(sHeadToWheelA);
sHeadToWheelB = new SpringConstraint(personHead, wheelB);
Add(sHeadToWheelB);
// angular constraint for triangle top
sBikeAngular = new AngularConstraint(wheelA, personHead, wheelB);
Add(sBikeAngular);
angDefault = sBikeAngular.TargetTheta;
personBody = new CircleParticle(midX - 5, topY - 20, 5);
personLegs = new CircleParticle(midX, topY - 5, 5);
aPose = new AngularConstraint(personHead, personBody, personLegs);
sHeadToBody = new SpringConstraint(personHead, personBody);
sHeadToBody.RestLength = 12;
Add(sHeadToBody);
sBodyToLegs = new SpringConstraint(personBody, personLegs);
sBodyToLegs.RestLength = 12;
Add(sBodyToLegs);
Add(personBody);
Add(personLegs);
sLegsToWheelB = new SpringConstraint(personLegs, wheelB);
sLegsToWheelB.RestLength = 20;
Add(sLegsToWheelB);
sLegsToWheelA = new SpringConstraint(personLegs, wheelA);
sLegsToWheelA.RestLength = 20;
Add(sLegsToWheelA);
}