---
id: annot-derived
name: @Derived
category: annotations
kind: annotation
tokens: @Derived
sig: @Derived field: float = 0.0
tip: Worked out at boot: anything written in the data is overwritten.
order: 71
---

<code>@Derived</code> tells an editor a field is computed when the game starts, so a value typed into the data would be overwritten and is not offered for editing.