> For the complete documentation index, see [llms.txt](https://vsxgames.gitbook.io/universal-vehicle-combat/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vsxgames.gitbook.io/universal-vehicle-combat/weapons/turrets-1.md).

# Health Modifier Volumes

A **Health Modifier Volume** defines a spherical space in which a damageable object will take damage or receive healing. This could be for example a corrosive cloud that the player vehicle must pass through or avoid.

1. Create a new game object and call it whatever you wish.
2. Add a **Health Modifier Volume** component.
3. Add as many elements as required to the *Health Type Change Rates* list. For damage, the change rate must be negative, and for healing, make it positive.

Note that the sphere collider's radius must be at least as large as the *Max Effect Distance* defined in the inspector of the **Health Modifier Volume** component for it to work correctly.