Energy Socket (Entity)

Energy_socket is an Half-Life 2 entity found only in 2002's sawyer\submarine map in the WC Mappack.

In sawyer\submarine

In the only WC Mappack appearance, energy_socket is hidden in style lights visgroup. That entity appears four times (like a prefab), each time (for %number% from 1 to 4) there is following structure:

• light entity named "light_%number%" which is initially dark by using 'a' (minimal brightness) custom pattern (Initially dark spawnflag not used)
• prop_dynamic named "light_%number%_fixture" - light source model, also used as sound source point
• ambient_generic named "light_%number%_sound" - "electrical" (TODO: explain) sound source (ambient/objects/func_train/electric1.wav - present in leak), off by-default
• energy_socket entity without properties, without inputs and with following outputs:

Output	Target	Input	Parameter	Comments
Attached1	light_%number%_sound	PlaySound
Attached1	light_%number%	SetPattern	mnlnmmnlm	Makes a "pulsating power source" effect
AttachedNone	light_%number%_sound	StopSound
AttachedNone	light_%number%	SetPattern	a	Turns light off

It seems to be some earlier implementation of plug-and-socket puzzle, but no plugs found on that map.

In leaked source code

In 2003 and 2007 source code no energy_socket mentions found.