public Coroutine Start(Coroutine coroutine)
{
if (_runningCoroutines.Contains(coroutine))
{
return(coroutine);
}
else if (_pausedCoroutines.Contains(coroutine))
{
coroutine.Resume();
return(coroutine);
}
_runningCoroutines.Add(coroutine);
return(coroutine);
}
/// <summary>
/// Adds a Transform as a child.
/// A transform can already be a child from another parent, in that case the parent will be properly changed without side-effects (ie. triggering unwanted events from the same scene).
/// </summary>
/// <param name="transform">A transform to be added as a new child.</param>
/// <param name="changeScene">Signalizes that transform.Entity.Scene can be changed to match parent Scene.</param>
/// <param name="force">Indicates that scene change can be forced if necessary. When adding a child that already belongs to a Scene and the intention is to match the parent Scene.</param>
public void AddChild(Transform transform, bool changeScene = true, bool force = false)
{
if (transform == this ||
IsDetached || Entity.IsWiped ||
transform.IsDetached || transform.Entity.IsWiped ||
_children.Contains(transform))
{
return;
}
if (changeScene)
{
if (transform.Parent != null)
{
if (transform.Entity.IsSceneFromTransformAncestor)
{
if (transform.Scene != Scene && transform.Scene != null)
{
transform.Entity.SceneRemoved(allowWipe: false);
transform.Entity.IsSceneFromTransformAncestor = false;
}
}
else if (force)
{
if (transform.Scene != Scene && transform.Scene != null)
{
transform.Scene.RemoveEntity(transform.Entity, wipe: false);
}
}
transform.OnParentRemoved();
transform.Parent._children.Remove(transform);
transform.Parent.OnChildRemoved(transform);
}
if (transform.Scene == null)
{
if (Scene != null)
{
transform.Entity.SceneAdded(Scene);
if (Scene.HasStarted && !transform.Entity.HasStarted)
{
transform.Entity.Start();
}
}
transform.Entity.IsSceneFromTransformAncestor = true;
}
else if (force)
{
if (transform.Scene != Scene)
{
transform.Scene.RemoveEntity(transform.Entity, wipe: false);
if (Scene != null)
{
transform.Entity.SceneAdded(Scene);
if (Scene.HasStarted && !transform.Entity.HasStarted)
{
transform.Entity.Start();
}
}
}
transform.Entity.IsSceneFromTransformAncestor = true;
}
}
else
{
if (transform.Parent != null)
{
transform.OnParentRemoved();
transform.Parent._children.Remove(transform);
transform.Parent.OnChildRemoved(transform);
}
if (transform.Entity.IsSceneFromTransformAncestor)
{
transform.Entity.IsSceneFromTransformAncestor = false;
}
}
transform._parent = this;
transform.OnParentAdded();
_children.Add(transform);
OnChildAdded(transform);
}
