Hipnotic particle fields
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autolycus
autolycus@planetquake.com

I finally got around to making this example...it shows how to make a particle field which can be toggled on and off.  To make the particle field "solid", i used a func_togglewall which toggles on and off with the particle field.  The field itself is run by a func_counter.

The effect of turning the particle field on and off is accomplished by func_buttons which target the func_counter and the func_togglewall.  The func_counter had its 'togglable', 'looping', and 'start on' flags set ON.  Its count was set to one, and it targeted the particle field.