Half-Life: Alyx Workshop Tools/Level Design/Trigger Detect Bullet Fire

Introduction

This tutorial will teach you how detect if a bullet passes a volume.

Setup

Create a test room. Insert a trigger_detect_bullet_fire mesh entity. If you only want to detect player fire, check the property Player Fire Only.

In the outputs, add the following output:

My Output	Target Entity	Target Input	Parameter	Delay
OnDetectedBulletFire	<targetEntity>	<input>		0.00

Finishing up

Compile and run your map, and you should have a trigger that, whenever a bullet passes it, it will output OnDetectedBulletFire.