Making a headcrab xen teleport

Creating Making a headcrab xen teleport

This guide will teach you how to make an npc (in this case a headcrab) teleport in-front of the player as seen throughout the campaign

Skill Level This tutorial expects you to have this amount of knowledge within the topic to follow along smoothly.
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Trigger Construction

The trigger

Start by creating a brush that uses the tools/toolstrigger texture
Next tie it to a trigger_once by pressing control + T

The trigger brush tied to a trigger_once

The trigger logic

Now in the outputs add the following:

	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnStartTouch	xen_spawner	Spawn		0.00	No

The xen portal

Place a env_xen_portal with the following properties:

Property Name	Value
Name	xen_spawner
Frequency	-1
Max Live NPCs	1
Class name of spawned NPC	npc_headcrab

Note: you may play around with the Frequency, Max Live NPCs, Class name of spawned NPC parameters!

Warning:You may get issues if you change the Frequency value, such as it spawning over and over!

Final Setup

Your final setup should look like this;

The final result: