> For the complete documentation index, see [llms.txt](https://simons-assets.gitbook.io/playable-vehicle-ai-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://simons-assets.gitbook.io/playable-vehicle-ai-documentation/spawn-unspawn.md).

# Spawn / Unspawn

## The Spawner

Each waypoint can be turned into a **Spawner** by clicking on the **Is Spawner** parameter.

The purpose of the spawner is to spawn the cars of your traffic system at runtime.

**The spawner spawns cars when it is hidden from the main camera.**

**Here is a list of the parameters:**

* **Car Prefabs**: A list of prefabs that represent the cars you want to spawn
* **Car Tag**: the tag of the car GameObjects
* **Max Distance To Spawn**: The maximum distance from the camera to spawn cars
* **Min Distance To Spawn**: The minimum distance from the camera to spawn cars
* **Spawn Interval**: the time interval at which cars will be spawned
* **Check Free Spawner Radius**: a radius around the spawner to check if this space already contains cars (if it does, the car will not be spawned)

## The Unspawner

The **Unspawn** script must be placed on the object to be destroyed (the car)

Its purpose is to destroy the car when it is no longer seen from the main camera.

**Here is a list of the parameters:**

* **Unspawn Delay**: The delay after which the object will be destroyed
* **Allow Unspawn Min Radius**: The distance the object must be from the camera to be destroyed.