> For the complete documentation index, see [llms.txt](https://infinitypbr.gitbook.io/magic-pig-games/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://infinitypbr.gitbook.io/magic-pig-games/projectile-factory/projectile-factory-documentation/spawn-behavior/spawn-behavior-code.md).

# Spawn Behavior Code

I hope you find the code easy to read and understand. This page will introduce the main methods which you may wish to know about. However, in general use, you don't need to handle any of the code, unless you are creating a new **Spawn Behavior** class, and plan to override some of the methods, or add new logic.

## Launch

The `ProjectileSpawner` class will call this to launch projectiles -- consider it the thing that gets called when the trigger is pressed, or other similar thing occurs. Based on the `MultiShotBehavior` settings, this may actually be blocked.

This method will start a `LaunchProjectiles` coroutine.

## Stop

If `forceStop` is `true`, the coroutine will stop even if `canStopMidSpawning` is set `false`.

This is the method which stops the spawning of projectiles. There are many reasons to do so, including perhaps the player taking their finger off of the trigger.

## Launch Projectiles (Coroutine)

This is the loop that actually Spawns the projectiles (using the `SpawnProjectile`) method. It handles the calculation of where and at what angle, and the repetitions and delays.

## SpawnProjectile

This method will create the projectile, first by pulling one from the **Projectile Object Pool**, or by instantiating a new one if there are none available in the pool. Setup actions on the Projectile itself are called from this method as well.

## Do Spawn Modifications

Called from `SpawnProjectile()`, this occurs prior to any events called on the projectile, and will call the `OnSpawn()` method on each of the `SpawnBehaviorModification` objects attached ot this `Projectile`.

## Start Position

This method will return the start position for a specific projectile based on the index provided.

## Launch Position

This works in conjunction with `StartPosition()` to determine the position of the projectile based on the angles provided. In some cases, the position will be offset from the default spawn position.

## Additional Methods

There are additional methods you may find of interest, if you open the script. There are multiple "Determine..." methods which handle the launch orders, as an example.