ZDoom

Don't worry, it all merged fine. But did you somehow trigger MSVC's auto-format for p_map.cpp? Looks like it, because all the whitespace has been reformatted.

[url=https://github.com/rheit/zdoom/pull/90]I like a challenge.[/url]
I hope I made the pull request correctly. GitHub is so confusing.
It took more time to make a pull request than the actual changes.
Again tested with all the possibilies.
You were right it looks much cleaner like that.

EDIT: Damn it git. The new request now has the 2 commits even though I made the last one on a different branch.
And somehow you can't see the changes so you have to look at the raw file.
Sorry.

Nothing against your pull request - the code sure does what is advertised - but I ask myself it it wouldn't be better to streamline it a bit by passing info about the needed checks to a single callback function instead of endlessly inflating their amount for each new property that needs to get added.

So you'll have to wait a bit longer so I can think about it.

Finally yesterday I got the courage to install Visual Studio and all the required stuff and somehow managed to make [url=https://github.com/rheit/zdoom/pull/89]my pull request[/url] too [size=60]damn you git![/size]
If the commit is somehow bad please say how so and don't be harsh. I had zero c++ knowledge yesterday and the only experience I had was from ACS.

I fully tested this feature. All 4 cases for the puff : nothing, +thrughost, +mthruspecies, and finally both.
And of course all on the 4 cases for an actor: nothing, spectral, ghost and same species.
All worked perfectly fine.

Sorry I went ahead and bumped this thread. I hope I won't get any death threat for that.
As already stated this would be incredibly useful for multiplayer, not just for zdoom but if backported to zandronum I can guarantee you everyone will be thankful.
The example can also apply to hitscan monsters that have the +THRUSPECIES flag on and should be as useful as the +MTHRUSPECIES flag already is.

[i][size=60]Now I'll be hiding in that corner over here[/size][/i]

Title says it all.
Let's say we put +THRUSPECIES on a player class so that people can go through each other in a multiplayer game, we could then put +MTHRUSPECIES on rockets, BFG balls and plasma but what about hitscan attacks ?
It's annoying to get pushed randomly by someone in multiplayer.
If the M in the MTHRUSPECIES flag is a problem we could still make a new flag called HTHRUSPECIES or PTHRUSPECIES.