This refactors the ship registry and the OSWPT struct to store data as indexes rather than pointers. This is a prerequisite for making these collections dynamic in the future. See also #5800.
Adds a SEXP that specifically checks for whether a player has skipped a mission. This can be used to set tech room entries, allowed ships/weapons, and other campaign data that would otherwise break if a player skipped a mission.
This only applies to the the failed-five-times popup. For this to work with the `skipmemymissionyo` cheat, it would be necessary to load every intervening mission and check the events. That being said, `skipmemymissionyo` already automatically allows all ships and weapons, so there is much less, if any, need for this SEXP in that case.
These new SEXP operators clear all status information from an event or goal, making it as if the event or goal had never been evaluated.
Implements feature discussed in #4184.
Convert additional timestamps to use the new timestamp system. This covers all timestamps referred to in freespace.cpp. For purposes of organization, the fade-in/fade-out timestamps have been moved to light.h|cpp and the training timestamps have been moved to missiontraining.h|cpp.
There are also several related code enhancements:
1. `FadeType` has been converted from `enum` to `enum class`
2. Initialization of the various training variables has been added to `training_mission_init` (previously they had never been reset between missions)
3. Validity checks have been added to the relevant locations for these timestamps
Some of the `frand_range` calls were used for integer calculations, so we can use `Random::next` now.
This also reduces the number of C-style casts in the codebase.
1. Update soundtrack message to make it easier for modders to track down missing files
2. Update sexp help for ai-stay-near-ship to show the right argument count
In a few places where the game checks for the command sender, it should check for #Command as well, as long as the mission flag to override #Command is present.
Additionally, while the mission's command sender was originally intended to be a ship, it has been used to specify an alternative to #Command as well. But this caused problems when the "override #Command" mission flag was active, as it transformed a hashed source into a non-hashed source. So this commit adds a check to treat the source as hashed, if necessary, if a replacement has occurred.
Fixes#5749.
* Make sure we handle unknown location types
Avoids edge-case gargabe pointer 1522974
* Make sure local vectors are at least set to zero
For coverity 1522985
* Make sure from_table is initialized
When creating a replacement texture object, for coverity 1522989
* Change to Unreachable to help Linters
This was a false positive uninitialized scalar, Coverity 1523726. Hopefully, changing to UNREACHABLE() will help linters avoid this false positive in the future.
* Initialize xyw on this struct instantiation
For coverity 1523730
* Add early return for ade_set_args if error
For coverity 1523732
* nebula-fade-poofs
* Move this up because order of operations is important.
* Add some documentation
* Respect time compression
* Fix sexp description
* Make sure faded poofs do not flicker
* optimize
Add "tactical" versions of disable and disarm goals which only perform the specific task without implying anything else. The target ship is not protected and attack goals are not cleared from other ships.
There is also a new AI profiles flag to make this the default hud squad message command instead of the classic disable/disarm.
The ai-fly-to-ship goal was added early in FSO's development but never worked right. Until recently it could crash; and even aside from the crash the AI would try to reach the target's exact position, causing repeated collisions. This folds ai-fly-to-ship into ai-stay-near-ship, since the behaviors are conceptually the same except for fly-to being satisfied as soon as the target is in range.
This also adds a new "escort" mode usable by both behaviors. The default Volition behavior is to swoop toward the target in a long, graceful arc; the new mode generates a goal point and flies directly to that point. These can be toggled via an optional sexp parameter.
There is also some minor cleanup and a new vec3d operator for convenience.
Needed for Scroll; depends on #5667.
Goober5000