Fully working animated plasma barrier,switches on and off.
Comes with three different plasma decals.
Uninstall from the desktop the files will be found in entitybank/barrier.
To use, simply place the invisible wall where you want it and place one of the barrier decals slightly in front of it,make sure you place it correctly to ensure the player takes damage from the decal.
Name the invisible wall the same as the decal you use,barrier1,barrier2 or barrier3.
Put the name of the barrier you use in the 'ifused' box of whatever switch you want to use. e.g barrier1 etc.{Use one of the switches found in sci fi or whatever,I think any should work.}
You should now be good to go.
When you walk into the barrier the wall will prevent you from passing and the plasma will inflict damage to you,when you flip the switch it will remove the barrier,you can increase the damage in the decalbarrier.fpi found in the scriptbank.
Here's a link to a working in-game demo.
http://files.filefront.com/barrierzip/;6349697;;/fileinfo.html
One small point, you should place a player start marker to ensure the sound from damage works.