As carrier-grade NATs are becoming common, many players cannot host
Clonk games at all. The simple STUN-like netpuncher from Clonk Rage
which was removed three years ago is already effective against some
DS-Lite NATs.
With some extensions, we should be able to make it work with more
restrictive NATs as well.
This reverts commit 72002cc366.
Redefining new breaks perfectly valid code, but only on MSVC and only in
one particular configuration (Debug). This is very annoying because it
means people not using MSVC, or even people doing Release builds, can
write standards-conforming code which then may fail to build for other
people.
Apparently this is recommended so that a std::vector actually uses the
move constructor. In any case, the second parameter wasn't used, so this is
a nice simplification as well.
Employ variadic template arguments and more rvalue references for this.
Sadly, StdParameterAdapt itself is even more complicated, since it has to
store the parameters instead of just forwarding them, so the limit is still
two parameters. But that's twice as much as before in many cases.
Discovered with valgrind. Previously, some memory that later gets freed using
free(...) (in StdBuf::Clear) was allocated with new char[...] rather than
malloc, in which case delete[] should be used to free them.
The red color channel calculation could overflow into the sign bit,
which is undefined behavior. At least one compiler takes advantage of
this and assumes it cannot happen, resulting in incorrect results.
BltAlphaAdd looks similar, but does in fact not have this bug because it
shifts the color channel far enough that multiplication can't overflow.
This is required for glDrawElements() with a core profile. Furthermore, for
meshes that have a fixed face ordering (non-transparent meshes at 100%
completion), this puts more static data on the GPU that we don't have to
upload every frame.
For meshes with non-fixed face ordering, we still have to upload faces every
frame, since the ordering might change if the mesh rotates. We could still
improve this by figuring out if the order actually changed after the sort
step, and only update to the GPU if it has. In many cases it hasn't, so there
is some potential for more optimization there. But that's for later.
Since mesh instances can now be attached to attached definitions, attached
definitions need to denumerate pointers recursively to make sure that the
reference to the mesh instance is restored correctly.
Lukas Werling