Handle the return values of all uses of the `io_read`, `io_skip` and `io_tell` functions in `CDemoPlayer`, to handle truncated demo files and other unexpected file reading and seeking errors during demo playback.
Show more detailed error message popups when demos cannot be loaded due to errors and when demo playback is stopped unexpectedly due to errors. Previously, only a generic message "Error loading demo" was shown when loading failed and no error message was shown when demo playback is stopped due to errors.
We only show the string value directly in the UI instead of using the demotype enum literals. There also should not be any reason to change any logic depending on whether the current demo is a server- or client-demo.
Add assertions to check that demo recording/playback is not started when already running.
Add assertions to check that demo recording/playback is stopped before the respective demo recorder/player is destroyed.
Previously, if the demo header strings did not contain zero-termination, the client would render the strings and any following non-zero memory from the demo header.
Now, demos will not be loaded, if any string in the header is not zero-terminated or not valid UTF-8.
Instead of using hardcoded tick offsets, use the current/previous/next tick values from the demo info.
This fixes seeking the next tick not working for demos where the difference between the current and the next tick was greater than 3.
By updating and rendering the current tick again when changing the spectator mode while the demo playback is paused.
Refactoring: Extract `IDemoPlayer::ETickOffset`, `IDemoPlayer::SeekTick` and `CMenus::DemoSeekTick`.
Purely automatic change. In case of conflict with this change, apply the
other change and rerun the formatting to restore it:
$ python scripts/fix_style.py