Prop interactions

physgun_interactions affect how a physics prop model is handled by and responds to the weapon_physcannon. These QC commands are compiled into the model via the (optional) physgun_interactions block within the $keyvalues section of the QC file.

QC syntax example

$keyvalues
{
	physgun_interactions
	{
	 	preferred_carryangles 	"0 0 0"
	 	onworldimpact 		stick
	 	onfirstimpact 		break
	 	onfirstimpact 		paintsplat
	 	onlaunch 		spin_zaxis
	 	onbreak 		explode_fire
	 	damage 			none
	}
}

Options

preferred_carryangles <angles>

Sets the angles, relative to the player's orientation, at which the prop will be held when carried.

This is used with the sawblades and propellers in Ravenholm, as well as the turret NPCs in Nova Prospekt.

onworldimpact <choices>

Literal Value	Description
stick	Prop will embed itself into the world if it hits it after being launched.

onfirstimpact <choices>

Literal Value	Description
break	Prop should always break on colliding with anything after being launched.
paintsplat	Prop applies paint decals to the first thing it hits after being launched.
impale	Prop impales whatever it first collides with after being launched. Not used in HL2, and hence unsupported at this time.

onlaunch <choices>

Literal Value	Description
<no value>	Physgun applies random angular velocity to the prop as it launches.
spin_none	Prop does not spin when launched.
spin_zaxis	Prop should spin around the Z axis when launched by the physcannon. (e.g. Ravenholm propellers.)

onbreak <choices>

Literal Value	Description
explode_fire	Prop ignites nearby enemies when it explodes on breaking.

damage <choices>

Literal Value	Description
none	Prop does not move when 'attacked' with the physgun. It may still take damage, but it won't move due to the impact.