It was previously just ineffective. Now it's impossible.
The reason I'm doing this is when you *can* grind (in this case, by
constantly getting free plasma and selling it), it kind of feels
like an obligation to do so.
It's still possible to grind within missions whose progress depends
on your pace, which aren't timed and keep generating more enemies
until you win. Namely: the missile boat mission, the miner mission,
and the third boss. (There might be others.) However, grinding in
these situations is quite dangerous and likely to take away the much
larger shield bonus at the end, and plus if you mess up when trying
to do this you're set back quite a bit, so I think these are sufficiently
worthless activities that no one will do them. (I never did.)
In most cases, this has also resulted in limits being lifted. (The
only place I haven't done this is for planets in intermission.cpp,
but I think I'll take away that 10-planet limit as well.)
This is silly. I can see that someone decided to restrict targeting
to one ship as a difficulty setting, but that's not a very good way
to achieve different levels of difficulty.
Also added more music and slowed down RE.ogg.
The source code contains routines to initialise all these resources, but also
functions to load from and store to external files. Support for external files
has now been removed; this removes a potential difference between compiling
with or without USEPAK, and makes it easier to change missions in the code.