private Node CreateWheel(Sprite2D wspr, Node basenode, Vector2 relPos)
{
var w1 = CreateSpriteNode(scene, wspr);
w1.GetComponent <RigidBody2D>().SetBullet(true);
var c = AddCollider <CollisionCircle2D>(w1);
c.SetRadius(1.25f);
//ConstraintRevolute2D wj1 = basenode.CreateComponent<ConstraintRevolute2D>();
//wj1.SetOtherBody(w1.GetComponent<RigidBody2D>());
//w1.SetPosition2D(relPos);
//wj1.SetAnchor(relPos);
ConstraintWheel2D wj1 = basenode.CreateComponent <ConstraintWheel2D>();
wj1.SetOtherBody(w1.GetComponent <RigidBody2D>());
w1.SetPosition2D(relPos);
wj1.SetAnchor(relPos);
wj1.SetAxis(Vector2.UnitY);
wj1.SetFrequencyHz(4);
wj1.SetDampingRatio(0.4f);
var ep = scene.CreateChild();
ep.SetPosition(new Vector3(-2f, -1, 14));
pe = ep.CreateComponent <ParticleEmitter2D>();
pe.SetEffect(cache.GetResource <ParticleEffect2D>("particles/dust.pex"));
activeWheels.Add(new WheelData {
rb = w1.GetComponent <RigidBody2D>(), pe = pe
});
return(w1);
}
public Node CreateWheel(Sprite2D sprite, Vector2 relativePosition, float radius, int suspensionFrequency, float suspensionDamping,
ParticleEffect2D particles, float distanceToEmitParticles)
{
Node wheelNode = Racer2D.CreateSpriteNode(sprite);
wheelNode.SetPosition2D(relativePosition);
// CreateSpriteNode adds a RigidBody for us, so we get it here
RigidBody2D wheelRigidBody = wheelNode.GetComponent <RigidBody2D>();
// We activate CCD
wheelRigidBody.SetBullet(true);
Racer2D.AddCollider <CollisionCircle2D>(wheelNode).SetRadius(radius);
// The Box2D wheel joint provides spring for simulating suspension
ConstraintWheel2D wheelJoint = Node.CreateComponent <ConstraintWheel2D>();
wheelJoint.SetOtherBody(wheelRigidBody);
wheelJoint.SetAnchor(relativePosition);
wheelJoint.SetAxis(Vector2.UnitY);
wheelJoint.SetFrequencyHz(suspensionFrequency);
wheelJoint.SetDampingRatio(suspensionDamping);
// Each wheel has a particle emitter to emit particles when it's in contact with the surface
Node particlesNode = Node.Scene.CreateChild();
particlesNode.SetPosition(new Vector3(relativePosition.X, relativePosition.Y, 14));
ParticleEmitter2D particleEmitter = particlesNode.CreateComponent <ParticleEmitter2D>();
particleEmitter.SetEffect(particles);
// We create a new Wheel struct and add to the _wheels list
_wheels.Add(new Wheel(wheelRigidBody, wheelJoint, particleEmitter, distanceToEmitParticles));
return(wheelNode);
}