clang rightly warns for `if (!var&1)`, which parses as `if (!(var &
1))`, which is probably not what the original author intended.
Unfortunately, the author never commented what *was* intended. The
author might have meant to reject any row with an even length (`if
(!(var & 1))`, but that seems strange in this context. Remove the `&
1`, which retains the sense of what the code has always done.
clang warns for taking the address of unaligned data, but not for taking
a reference to it. It should warn for both. The data should be fixed
not to be unaligned, but for now, this change will quiet the warning.
OS X clang warns when a variable is captured but not used. Linux gcc
does not. Remove the unused variable.
Reported-by: kreatordxx <https://github.com/dxx-rebirth/dxx-rebirth/issues/368>
Fixes: 7da64d3782 ("Add new autoselect-while-firing mode: "when firing stops"")
Packed structures cannot be passed by reference, may fail on
alignment-strict architectures, and are bad for performance even on
alignment-tolerant architectures. Using them for anything other than an
abstract layout declaration is a mistake. Remove
__attribute__((packed)).
Many predicate functions only need to return zero/nonzero, and the
callers do not care about the particular value of nonzero. Use this to
eliminate loads of explicit `1`, instead returning a nonzero value
generated by the test.
User roncli reports[1] an original game bug that prevents boss
teleportation from operating correctly if the program is not restarted
between each campaign. This is another case of a global variable being
used improperly. Reset the relevant variables when the boss is
initialized.
[1] https://github.com/dxx-rebirth/dxx-rebirth/issues/366#issuecomment-373199624
`build_colormap_good` only took `used` to clear it. Only one caller
needed it cleared. Move the clear into that caller. Remove the
parameter from all calls.
The Windows build did not explicitly include <time.h> or equivalent, but
used `time` and `gmtime`, which are only available when <time.h> is
included. Other platforms include <time.h> incidentally.
Fixes: 131c1b9f4d ("Add support for PNG screenshots")
