* 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
Since `gr_string` can accept a length parameter, there's no need to copy each line before it is drawn.
Related to #5495 but not one of the two options mentioned.
This adds several fixes to make the event and menu music more robust:
1. The game will now run with zero soundtracks. All accesses into a potentially empty vector should now have checks.
2. Soundtracks and menu music are now checked for validity before being played (not just when importing a FSM mission).
3. The parsing validity checks and the in-game event music now check for skippable patterns using the same function.
4. Zero measures and zero samples-per-measure now cause the game to skip a pattern. Negative values now trigger a warning.
5. Omitting some or all of the `$Name:` lines for a soundtrack will not cause an assert.
Fixes#5576. Follow-up to #5572.
The `mn.createWeapon()` function takes an optional group ID for weapons that share lighting, but the internal `weapon_create_group_id()` function was never exposed to the API. This adds that.
When fireballs were made dynamic in 609ed4ed94, the `MAX_FIREBALLS` #define lost any relationship to the fireball collection. This removes it and also correctly specifies the size of the fireball collection.
This fixes a CTD when accessing items in `mn.Fireballs` via script.
See title. There were some cascade effects, but the changes are mostly contained to the model code. The calls to `gr_render_model` and `g3_render_primitives` use `const_cast` because constifying that API would require a whole other PR.
mjn-mixael