private static IEnumerable <NodeInformation> GetAvailableNodesForLink(AssetViewModel viewModel, ModelNodeLinkComponent modelNodeLinkComponent)
{
return(GetAvailableNodesForLink(viewModel, modelNodeLinkComponent?.Target?.Model ?? modelNodeLinkComponent?.Entity?.Transform.Parent?.Entity?.Get <ModelComponent>()?.Model));
}
private void GrabNewEntity()
{
if (grabbedEntity != null)
{
return;
}
var collisions = Entity.Get <PhysicsComponent>().Collisions;
if (collisions.Count == 0)
{
return;
}
var enumerator = collisions.GetEnumerator();
while (enumerator.MoveNext())
{
var collision = enumerator.Current;
var entityA = collision?.ColliderA?.Entity;
var entityB = collision?.ColliderB?.Entity;
var otherEntity = (entityA == Entity) ? entityB : entityA;
var otherRigidBody = otherEntity?.Get <RigidbodyComponent>();
if (otherRigidBody == null || otherRigidBody.IsKinematic ||
otherRigidBody.CollisionGroup == CollisionFilterGroups.CharacterFilter)
{
continue;
}
grabbedEntity = otherEntity;
break;
}
if (grabbedEntity == null)
{
return;
}
var rigidBody = grabbedEntity?.Get <RigidbodyComponent>();
rigidBody.IsKinematic = true;
rigidBody.CanSleep = false;
Vector3 posObject, posParent;
Vector3 sclObject, sclParent;
Quaternion rotObject, rotParent;
// Make sure old positions are up to date
grabbedEntity.Transform.UpdateWorldMatrix();
grabbedEntity.Transform.WorldMatrix.Decompose(out sclObject, out rotObject, out posObject);
var parentEntity = Entity.GetChild(0);
parentEntity.Transform.WorldMatrix.Decompose(out sclParent, out rotParent, out posParent);
// Calculate relative transformations
posObject -= posParent;
posObject /= sclParent;
rotParent.Conjugate();
rotParent.Rotate(ref posObject);
rotObject = rotParent * rotObject;
// Attach the object to the parent
var transformLink = grabbedEntity.Get <ModelNodeLinkComponent>();
if (transformLink != null)
{
transformLink.Target = parentEntity.Get <ModelComponent>();
}
else
{
transformLink = new ModelNodeLinkComponent();
transformLink.Target = parentEntity.Get <ModelComponent>();
grabbedEntity.Add(transformLink);
}
grabbedEntity.Transform.UseTRS = true;
grabbedEntity.Transform.Position = posObject;
grabbedEntity.Transform.Rotation = rotObject;
}
