Forcefield Filter

Adding this upgrade to the Industrial Tesla Coil will make the tesla coil target entities either on the inside or the outside of a force field. It targets the inside of a force field by default.

Usage
This must be placed next to a tube or area projector (including diagonals) and it will target any entities inside the forcefield. If you want to target entities outside the forcefield, you'll have to use a  Programmable Filter   with a  Difference Token.