Env global

This entity is also available as [[{{{1}}}|{{{1}}}]] for the Half-Life Engine.

Template:Base point It controls game-specific global states, such as whether the gravity gun should become the super gravity gun in HL2.

Global states persist across level transitions, regardless of their status. Global states are not stored until an env_global receives any commands that modify the state, such as turning it on or off or changing the counter. Use the Set Initial State flag for the global to be added on spawn.

To remove a global from the table entirely, set the global's state to "Dead" using the Remove input. This will cause the global to remove itself on the next level transition.

Globals and their current state (in integer form) are added to all entities' response data for use in the Response System.

In code, it is represented by theCEnvGlobalclass, defined in thelogicentities.cppfile.

ConVars/Commands

Cvar/Command	Parameters or default value	Descriptor	Effect
dump_globals			Dumps data for all set global states.
global_set	globalname state		Set the status of a global state. First parameter is the name of it, second is a number. 0 = off 1 = on 2 = dead A global can also be created instantly with this command.

Flags

• 1: Set Initial State - Whether this entity defines the global state when the map starts.

Keyvalues

Global State to Set (globalstate) ([todo internal name (i)]) <choices>

The global state this entity is linked to. In practice all of Valve's FGDs include the HL2 states regardless of whether the game understands them. Global states are not exclusive to these choices and any text can be used.

Internal Name	Editor Name	Description
gordon_precriminal	Gordon pre-criminal	Creates the pre-criminal behavior seen in Point Insertion.
antlion_allied	Antlions are player allies	Makes antlions friendly to the player and allows them to listen to bugbait, as seen in the Nova Prospekt chapters.
suit_no_sprint	Suit sprint function not yet enabled	Disables the HEV suit's sprint function. (not required if the HEV suit is not equipped)
super_phys_gun	Super phys gun is enabled	Enables the supercharged gravity gun seen in the Citadel levels of Half-Life 2 and Episode One. Note:Doesn't work in HL2:DM.
friendly_encounter	Friendly encounter sequence (lower weapons, etc.)	Indicates a friendly encounter sequence. (This appears to just keep the player's weapons lowered.)
citizens_passive !FGD	Citizens are *not* player allies (cannot be commanded)	Makes citizens neutral to the Combine and the player. (also done by gordon_precriminal)
gordon_invulnerable	Gordon is invulnerable	Makes the player invulnerable to damage. (Retains knockback, view punches, etc. unlike god mode)
no_seagulls_on_jeep	Don't spawn seagulls on the jeep	Prevents seagulls from spawning on the jeep.
ep2_alyx_injured	Episode 2: Alyx injured	Template:EP2 add Episodic only. Invokes Alyx's "injured" behavior: Triples bullet spread for weapon_alyxgun Increases time between shots Note:This applies to all NPCs with a weapon_alyxgun, not just Alyx.
ep_alyx_darknessmode	Episodic: Alyx darkness mode	(in all games since ) Episodic only. Enables "darkness mode", as seen during the "Lowlife" chapter of Episode One. Despite the name, this also affects the player, zombies, and even fires in various ways to make them more suitable for darkness.
hunters_to_run_over	Ep2 Counter: Hunters to run over before they dodge	Template:EP2 add Episodic only. The number of hunters that should be ran over before they start dodging vehicles. By default, hunters will try to dodge incoming vehicles. If this global is declared and its counter is greater than 0, hunters will not try to dodge incoming vehicles. Instead, this global's counter will decrement by 1 each time a hunter is killed by a vehicle. When it reaches 0, hunters will return to dodging vehicles.

Initial State (initialstate) ([todo internal name (i)]) <choices>

Used by Set Initial State to determine what the global state should be set to when the map starts.

• 0: Off
• 1: On
• 2: Dead

Counter (counter) ([todo internal name (i)]) <integer> (in all games since )

An integer counter value associated with this global.

Bug:There is an aliasing problem for this keyvalue (keyvalue and output have the same name). To make it work, simply change its name in the source code DEFINE_OUTPUT declaration.  [todo tested in ?]

Inputs

TurnOn

Sets the global's state to ON.

TurnOff

Sets the global's state to OFF.

Toggle

Switches state of the global between ON and OFF.

Remove

Set state of global to DEAD.

AddToCounter <integerRedirectInput/integer> (in all games since )

Adds the specified amount to the counter.

SetCounter <integerRedirectInput/integer> (in all games since )

Sets the value of the counter.

GetCounter  (in all games since )

Fires this entity's Counter output.

Outputs

Counter <integerRedirectInput/integer> (in all games since )

Outputs the integer value of this entity. May depend on global state.