When this line was converted by the bitset flags PR, it was accidentally changed from setting the flag to reading the flag, making it a do-nothing line and causing the flag to be cleared on mission load.
The codebase had quite a few instances of .size() being called and then checked to see if it was 0 or not (or less than 1, or greater-than-or-equal-to 1, which are basically equivalent), when .empty() could be called instead (negated or not, depending on what the original condition was).
This fixes an Int3 in the ai code where it couldn't find a ship that was
destroyed before a mission. This was found through a mission bug in
FreeSpace Blue "Slaying Ravana" where the "Somtus" is marked as
destroyed before mission but then the AI is given orders which target
that ship.
This introduces a new mechanism for handling bit flags. Instead of using an int (or two, or three) to write bits into, this uses the std::bitset in a wrapper class that accepts an enum class as input. This means that certain classes of errors we've had a few of in the engine, where a coder used the wrong set of flags or checked them against the wrong variable (SF_STEALTH vs SIF_STEALTH, for example) can now be detected at a compiler level rather than not at all.
GCC 6 warns about misleading indentation because it counts tabs as 8
spaces. The rest of the code uses tabs, these lines use 4 spaces.
Replace spaces with tabs.
Whitespace changes only.
Replaces calls to double-precision floating point trig functions with
calls to single-precision floating point trig functions as follows:
cos() -> cosf()
sin() -> sinf()
tan() -> tanf()
acos() -> acosf()
asin() -> asinf()
atan() -> atanf()
This allows the compiler to avoid generating unnecessary instructions
that convert a float to a double and then a double back to a float.
Signed-off-by: Peter Mitsis <[email protected]>
Both the ANG_TO_RAD() and fl_radians() macros were serving the same
purpose; they converted an angle from degrees to radians. To reduce
code duplication, ANG_TO_RAD() was replaced with the existing
fl_radians().
Signed-off-by: Peter Mitsis <[email protected]>
Normally, ships whose weapons or engines subsystems are destroyed will
self-destruct after 90 seconds if they are part of a wing (see
ai_maybe_self_destruct). This adds a ship flag to prevent that from
happening.