I've created this spreadsheet to provide examples of how line of sight targeting works.
* From a targeting perspective, ghosts are indistinguishable from gates. Therefore assume that they have a red-dotted line round them.
* Two ghosts that are directly diagonally adjacent block line of site to their 'corner' square furthest away from the Ghostbuster.
30-Nov-2015 - Updated a few diagrams that were incorrect