Several refinements:
1. Make the case labels consistent between the setting and getting of the virtvar, for ease of comparison and troubleshooting.
2. Consolidate CHASE_WING and GUARD_WING for setting, like they already are for getting.
3. Consolidate STAY_STILL for getting, using one simple trick.
4. Remove the KEEP_SAFE_DISTANCE goal, since it has no target. Fixes#6761
5. Fix CHASE_SHIP_CLASS which put the getting case in the setting section, and consequently did not handle setting.
The new enum class collection of AI goal modes did not handle the superposition of states that could occur when multiple ships were selected in FRED. Add a special FRED-only state for this purpose.
Allow waypoint orders to target a specific waypoint and go in reverse. Add script access to waypoints and waypoint lists belonging to orders.
Fix assignment of targets and goal start times. Assign targets when they are different (and thus need to be assigned), not when they are the same.
Several locations in the code (notably `ai_info` and `waypoint_h`) previously stored pointers for waypoints and waypoint lists that need to be valid for more than one frame. Since both waypoint lists and waypoint paths may change size, resulting in vector reallocation, the information should be stored as indexes instead.
Fixes#6353.
This refactors the object_h struct to store objects as indexes rather than pointers. This is a prerequisite for making the collection of objects dynamic in the future. See also #6100.
Follow-up to #5800 and #5829.
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.
* Adds safety checks to scripting orders with waypoints
Turns out setting a waypoint order then trying to get to target of that order in the same frame triggers a crash in the scripting API for ship orders (`order.cpp` line 295). This was due to invalid lookups which lacked safety checks.
This PR adds those safety checks. Now, if this situation is encountered, it leaves `objnum` at -1 and thus returns an object for which `isValid` is false.
Fix is tested and works as expected. Also fixes#5172
* appease clang
* cleanup thanks to Goober
* clang again
* forgot to re-add the nullptr
* remove redundant checks
* add subsystem indexer and ensure that ship_get_indexed_subsys and ship_get_first_subsys are independent
* also add reverse lookup from subsys to index
* update indexer to accommodate subsystem pointers being changed
* use clearer function names, and fix the type of subsys_list_indexer
* add assertions
* address latest feedbcak
This adds a new AI goal which is equivalent to play-dead except that it "sticks". It doesn't clear the goal list
so it will continue playing dead until the goal is removed or another goal with a higher priority is added.
Goober5000