Env message

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env_message
An entity that draws a text message on player's HUDs.
KEYS
Name targetname <target_source> The name that other entities refer to this entity by.
Message Text message <string>
spawnflags spawnflags <flags>
Sound Effect messagesound <sound> When the message is shown, this sound effect will be played, originating from this entity.
Volume 0-10 messagevolume <string> Volume of the sound effect.
Sound Radius messageattenuation <choices>
INPUTS
Kill Removes this entity from the world.
KillHierarchy Removes this entity and all its children from the world.
AddOutput <string> Adds an entity I/O connection to this entity. Format: <output name> <targetname>:<inputname>:<parameter>:<delay>:<max times to fire (-1 == infinite)>. Very dangerous, use with care.
FireUser1 Causes this entity's OnUser1 output to be fired.
FireUser2 Causes this entity's OnUser2 output to be fired.
FireUser3 Causes this entity's OnUser3 output to be fired.
FireUser4 Causes this entity's OnUser4 output to be fired.
ShowMessage Shows the message and plays the sound.
OUTPUTS
OnUser1 Fired in response to FireUser1 input.
OnUser2 Fired in response to FireUser2 input.
OnUser3 Fired in response to FireUser3 input.
OnUser4 Fired in response to FireUser4 input.
OnShowMessage Fired when the message is activated.