# isBuildingPlayer

> Checks whether Unity is actively building a Player or a content build.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor](/engine/7000.0/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public static bool isBuildingPlayer { get; }
```

### Remarks

This returns true during Player builds ([BuildPipeline.BuildPlayer](/engine/7000.0/script-reference/unityeditor/buildpipeline/buildplayer.md)), content directory builds ([BuildPipeline.BuildContentDirectory](/engine/7000.0/script-reference/unityeditor/buildpipeline/buildcontentdirectory.md)), and AssetBundle builds ([BuildPipeline.BuildAssetBundles](/engine/7000.0/script-reference/unityeditor/buildpipeline/buildassetbundles.md)). Use it to check the context inside script code that might be triggered during a build, for example when [ExecuteAlways](/engine/7000.0/script-reference/unityengine/executealways.md) is used on a [MonoBehaviour](/engine/7000.0/script-reference/unityengine/monobehaviour.md).