Env credits

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env_credits
An entity to control the rolling credits.
KEYS
Name targetname <target_source> The name that other entities refer to this entity by.
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.
RollCredits Start the intro credits rolling.
RollOutroCredits Start the outro credits rolling.
ShowLogo Show the HL2 logo.
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.
OnCreditsDone Fired when the credits having finished rolling.