private void AddTrainToScene(SCNScene scene, SCNVector3 position)
{
var max = SCNVector3.Zero;
var min = SCNVector3.Zero;
var trainScene = SCNScene.FromFile("train_flat", ResourceManager.ResourceFolder, (NSDictionary)null);
foreach (var node in trainScene.RootNode.ChildNodes)
{
if (node.Geometry != null)
{
node.Position = new SCNVector3(
node.Position.X + position.X,
node.Position.Y + position.Y,
node.Position.Z + position.Z
);
max = SCNVector3.Zero;
min = SCNVector3.Zero;
node.GetBoundingBox(ref min, ref max);
var body = SCNPhysicsBody.CreateDynamicBody();
var boxShape = new SCNBox {
Width = max.X - min.X,
Height = max.Y - min.Y,
Length = max.Z - min.Z,
ChamferRadius = 0f
};
body.PhysicsShape = SCNPhysicsShape.Create(boxShape, (NSDictionary)null);
node.Pivot = SCNMatrix4.CreateTranslation(0f, -min.Y, 0f);
node.PhysicsBody = body;
scene.RootNode.AddChildNode(node);
}
}
var smokeHandle = scene.RootNode.FindChildNode("Smoke", true);
var smokeParticleSystem = SCNParticleSystem.Create("smoke", ResourceManager.ResourceFolder);
smokeParticleSystem.ParticleImage = ResourceManager.GetResourcePath("smoke.png");
smokeHandle.AddParticleSystem(smokeParticleSystem);
var engineCar = scene.RootNode.FindChildNode("EngineCar", false);
var wagon1 = scene.RootNode.FindChildNode("Wagon1", false);
var wagon2 = scene.RootNode.FindChildNode("Wagon2", false);
max = SCNVector3.Zero;
min = SCNVector3.Zero;
engineCar.GetBoundingBox(ref min, ref max);
var wmax = SCNVector3.Zero;
var wmin = SCNVector3.Zero;
wagon1.GetBoundingBox(ref wmin, ref wmax);
var anchorA = new SCNVector3(max.X, min.Y, 0f);
var anchorB = new SCNVector3(wmin.X, wmin.Y, 0f);
var joint = SCNPhysicsBallSocketJoint.Create(engineCar.PhysicsBody, anchorA, wagon1.PhysicsBody, anchorB);
scene.PhysicsWorld.AddBehavior(joint);
joint = SCNPhysicsBallSocketJoint.Create(wagon1.PhysicsBody,
new SCNVector3(wmax.X + 0.1f, wmin.Y, 0f),
wagon2.PhysicsBody,
new SCNVector3(wmin.X - 0.1f, wmin.Y, 0f)
);
scene.PhysicsWorld.AddBehavior(joint);
}
private void CreateBallJoint(SCNPhysicsBody source, SCNVector3 sourceOffset, SCNPhysicsBody dest, SCNVector3 destOffset)
{
var joint = SCNPhysicsBallSocketJoint.Create(source, sourceOffset, dest, destOffset);
this.joints.Add(joint);
}