> For the complete documentation index, see [llms.txt](https://docs.flatredball.com/flatredball/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flatredball.com/flatredball/glue-reference/entities/glue-reference-baseentity.md). # BaseEntity ### Introduction The BaseEntity property controls the inheritance of a given Entity. An Entity can inherit from another Entity, or it can inherit from a FlatRedBall type, like Sprite. ![](https://951240982-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M_fye9Ufg3vzJxwX5Hk%2Fuploads%2Fgit-blob-e1a92d34842dcee89fa72d5cd7570656e9b3bec9%2F2017-02-img_58b3a85f1cdf9.png?alt=media) ### Inheriting from other Entities Entities can inherit from other Entities. Entity inheritance is the current recommended approach for creating a variety of common entities, such as multiple Enemy types in a game. To do this: 1. Click on the Add Entity quick action ![](https://951240982-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M_fye9Ufg3vzJxwX5Hk%2Fuploads%2Fgit-blob-02186ed112247b6d0e69489f4489a32c4df5fbe5%2F2023-07-img_64b09867579c8.png?alt=media) 2. Use the **Base Entity** dropdown to select the base entity. Note that when a Base Entity is selected, most of the options are hidden since the new entity inherits those properties from its base.
3. Click **OK** The new entity now inherits from the selected **Base Entity.** ![](https://951240982-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M_fye9Ufg3vzJxwX5Hk%2Fuploads%2Fgit-blob-913a05822cf43b33990912d905442a377a58444d%2F2023-07-img_64b098e3931ba.png?alt=media) #### Inheriting when Creating a New Entity A new entity can be created as a derived entity in the new entity window. ### Inheriting from FlatRedBall Types Entities can inherit from FlatRedBall types, such as Sprites. By default Entities inherit from PositionedObject, but this inheritance can be modified through Glue. The reason this feature exists is primarily to improve performance and reduce memory consumption. For more information, see the [Inheriting from FlatRedBall Types tutorial](/flatredball/glue-reference/entities/glue-tutorials-inheriting-from-flatredball-types.md). --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.flatredball.com/flatredball/glue-reference/entities/glue-reference-baseentity.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.