Creating a rotating portalgun

Introduction

So, we are going to create rotating stand with portalgun shooting portals.

Warning:You will probably see shadow of stand cover underground. Does anybody know how to fix it?

An example map is available for download here.

Prepare models

You will need:

prop_dynamic, world model: models/props/pedestal_base_reference.mdl, name: stand_bottom_model
prop_dynamic, world model: models/props/pedestal_center_reference.mdl, name: stand_top_model

Just create and name them, we will move them after next step

Prepare brushes

Create:

32 to 32 square, height 4, using nodraw texture.

4 to 32 sq, height 55 with nodraw texture too.

Moving

Illustration 1.

Move stand_bottom_model where you want to have the stand, that small doors on it have to be under ground. Then move stand_top_model above stand_bottom_model, as on picture. Center 1st brush, that 32x32, with stand_top_model, Z axis to half of stand_top_model (approximately). And move 2nd brush as on picture.

PortalGun

Create new entity, weapon_portalgun and name it weapon_portalgun. Move it exactly to top of stand_top_model, a front part of portalgun has to be on left when you’re looking on stand_top_model from that part with blue display.

Logic

Make entity logic_timer named timer_stand and set interval to 5 sec. Make sure that initial state is on. Now go to outputs and write:

	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnTimer	stand_func_rotating	Start	<none>	0.00	No
	OnTimer	stand_func_rotating	Stop	<none>	3.00	No
	OnTimer	weapon_portalgun	FirePortal1	<none>	3.00	No

Select 32x32 brush and tie it to entity func_rotating. Name: stand_func_rotating | Friction: 0 | Max Rotation Speed: 30 | In Flags, uncheck Start ON.

Tie 2nd brush to func_door. Name: stand_func_door | Speed: 25 | Move direction: 90 0 0. Create new output:

	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnFullyOpen	stand_bottom_model	SetAnimation	close	0.00	No

Now, we will make outputs of stand_bottom_model:

	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnAnimationDone	stand_bottom_model	SetAnimation	inactive	0.00	No

And few outputs for weapon_portalgun:

	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnPlayerPickup	timer_stand	Kill		0.00	No
	OnPlayerPickup	stand_top_model	SetParent	stand_func_door	0.00	No
	OnPlayerPickup	stand_func_door	Open		0.80	No

Parents and the Hole

All moved, just for illustration of hole.

Now, just set parent of weapon_portalgun and stand_top_model to stand_func_rotating. When your done, make hole under stand_bottom_models overground part.

End

You may create prop_static with model of models/props/autoportal_frame/autoportal_frame.mdl for framing autofired portals, just move them to wall and rotate.