This tutorial covers the fundamentals about the GameObject entity and the Component entity. You will be introduced to both Unity’s entities and how to work with them.
In Unity, you will work a lot with an entity called GameObject, witch is composed by Components.
A GameObject is a Unity entity that composes Scenes. Any new object created in a Scene is held by or is in part a GameObject.
Check on the GameObjects already existing in the SampleScene. There’s a GameObject named Main Camera in the Hierarchy window.
If you click on it and take a look to the Inspector window, the selected GameObject’s components will be displayed.
Each element listed in the window (Transform, Camera) is a Component.
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You can fold and unfold components by clicking on the top-left arrow in their header.
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By definition, all the GameObject are composed by at least one component: the Transform component.
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You can create new GameObjects by simply right-clicking in the Hierarchy window; or using the GameObject menu at the top left of the Editor window.
Right-clicking on the Hierarchy window will display this menu.
Selecting the GameObject menu in the toolbar on top will display a similar menu.
After that you can type in a name for the GameObject.
You have succesfully created an Empty GameObject.