TreeNode.md

Friflo.Engine.ECS

Friflo.Engine.ECS

TreeNode Struct

A TreeNode component stores the ChildEntities of an Entity.
It is used to build up an entity hierarchy used for scene graphs.

public struct TreeNode :
Friflo.Engine.ECS.IComponent

Implements IComponent

Remarks

To change the ChildEntities of an Entity use:

• AddChild(Entity)
  
• RemoveChild(Entity)
  
• InsertChild(int, Entity)
  
  Internally the child entities of an entity are stored in up to a dozen int[] arrays.
  If these array buffers grown large enough over time no heap allocations will happen if adding or removing child entities.
  

Properties
ChildCount	Returns the number of ChildEntities.
ChildIds	Property is obsolete. Use GetChildIds(EntityStore) instead.

Methods
GetChildEntities(EntityStore)	Returns the child entities. Executes in O(1).
GetChildIds(EntityStore)	Returns the child entity ids. Executes in O(1).
ToString()