Ok, I've just got my first BSP Map up and running. Have not got collision going yet, but I'm working on it. Had a lot of problems as first so I thought I'd share what I'd found:
I am using Valve Hammer 3.4 and have half life installed. If you havn't got Halflife, Buy it! Apart from being an ace game (Even Now) you've got some pre-made WAD files to play with and an easy map preview (Half life itself). It's only £12.99 for Halflife Generation so you've got no excuse.
Ensure you install Valve hammer into a directory with no spaces in the name otherwise the compile tools will fail, ie:
'Valve Hammer Editor\" will not work!!!!
'Hammer' will work.
Set up your Options as per the Help instructions Including the Halflife.fgd file. I've been using zoners compile tools, but the origionals work fine.
Make sure you have the 'Default Point Entity Class' set to 'info_player_start' and make sure you create a 'info_player_start' entity somewhere on your map, otherwise your map will not display in dark basic at all.
Make sure your map is completely 'Sealed', no gaps or holes otherwise zoners vis and rad tools will fail. The origional tools will fail as well but will still compile your map without any lightmapping.
Hope that's of some use
Strings are PChars ??????? What a World