util.ScreenShake
Description
Makes the screen shake.
The screen shake effect is rendered by modifying the view origin on the client. If you override the view origin in GM:CalcView you may not be able to see the shake effect.
Arguments
5 number radius
The range from the origin within which views will be affected, in Hammer units.
Does nothing on client.
Example
This will shake the screen, from the position 0, 0, 0 (X, Y, Z) and 5000 units away, with 5 amp, frequency 5, for 10 seconds.