Iterating over it returns each side number in turn. This allows
converting many loops of the form:
```
for (int i = 0; i < MAX_SIDES_PER_SEGMENT; ++i)
```
to the compact form:
```
for (const auto i : MAX_SIDES_PER_SEGMENT)
```
The compact form brings the usual benefit of range-based for: delegating
iteration to the compiler prevents the loop body from skipping a step,
and makes clear in the code that this is the case.
gcc treats the intervening lines since the last `if` as sufficient to
recognize this as not misleading. clang does not. Change the indent to
calm clang.
Define separate enum values for rotation data in both the high bits,
where it is usually kept, and the low bits, where it is sometimes used
for math or comparisons.
Define an enum value to represent the composite of the index and the
rotation, since the composite is not suitable for use as an array
subscript. Add helper functions to extract the component pieces.
A declaration is useful if it declares an external function. A static
inline declaration, if not followed by the definition later in the same
translation unit, will not be useful. Remove such declarations, and
rely on using the definition as a declaration for those files that
actually call partial_range() or similar functions.
The minimum supported compiler versions now provide a depth-efficient
implementation of std::make_index_sequence, which removes the last
reason to carry a private implementation. In the case of clang, it
appears to have a special compiler intrinsic used to implement its
std::make_index_sequence.
Switch to the compiler-provided version for both gcc and clang.
Otherwise, unless FrameTime exceeds Final_boss_countdown_time in a
single frame, the time never advances and the level never ends.
Fixes: 215252b8ca ("Fold Final_boss_is_dead into Final_boss_countdown_time")
As documented in zico's commit 38fabd7c49, robot smart mines have a
different ID number than player smart mines. Rename the test functions
to clarify that they only recognize player smart mines, but not robot
smart mines.
git grep -l is_proximity_bomb_or_smart_mine | xargs sed -i -e 's/is_proximity_bomb_or_smart_mine/is_proximity_bomb_or_player_smart_mine/g'
It has always been here, but appears to serve no purpose.
`multi_explode_robot_sub` clears `Stolen_items`, so at first look, this
swap seems to be preserving the prior values. However,
`multi_send_robot_explode` does not use `Stolen_items`, and after
`multi_send_robot_explode` completes, `Stolen_items` is explicitly wiped
again. Thus, removing the whole block will let the wipe performed by
`multi_explode_robot_sub` stand, producing the same result with less
code.
