Unity Game Object Hierarchy - Unity Engine Tutorial 33

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Notes for You:: Unity Game Object Hierarchy - Unity Engine Tutorial 33
- Each game object in Unity scene is managed by a Hierarchical / Tree data structure.

Tree Data Structure Terminology:

Tree:
- is a data structure, in which objects are organized in the hierarchy (or in levels).
- is represented based on parent & child relationship present between objects.

Root:
- is an object at the top most level of a tree that does not have a parent.
- all root objects can be parent.

Parent:
- is an object containing one or more child objects (i.e. children).

Child:
- is an object that has a parent.

Siblings (brothers or sisters):
- are two or more objects with same parent.

Leaf:
- is an object without child or children.

Descendants / Successors:
- are all Objects falling under the selected object
(I.e. Direct Children, Children’s Children, or any object that can be reachable from the selected object to the leaf object are considered as descendants or successors).

Ancestors / Predecessors:
- are any object visited in the path from the selected object to the root object.
(I.e. Parent, Grandparent, Grand grandparent, or any object visited up from the selected object to the root object are considered as ancestors or predecessors).

Benefits of Tree data structure:
Allows us to efficiently
- store and manage data or objects in levels.
- search and manipulate data or objects.
- move sub trees.
- inherit some properties of a parent to its descendents.

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Unity Tutorial 34 - Understanding Unity Hierarchy (Parent-Child Relationships) with C# Script

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Unity Tutorial 32 - How to Snap Objects in Unity | Unity Vertex Snapping Mode

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