Add `const` to the `mc_info` struct so its values aren't inadvertently overwritten. Tweak some of the collision code to prevent overwrites.
Also remove the `flak_muzzle_flash` declaration since that function no longer exists.
This initializes `mc_info` to the correct values when it is constructed, removing the need for `mc_info_init`.
This PR also fixes a group of incorrectly inverted assignments in beam.cpp.
Adds gravity! Applies on a per-mission basis, and weapons, ships, debris, and asteroids now have a configurable "gravity const" which multiplies the effect of gravity on them, by default everything except debris is 0 (meaning no effect even when the mission has gravity). AI and the lead indicator will also lead for ballistic trajectories as well, given a gravity-affected weapon. No FRED support or gravity direction control yet, to come in later PRs.
This is a new Lua API function that allows creation of arbitrary debris pieces, whether chunks of a ship's hull or shards of shrapnel. All of the parameters are optional, and a wide variety of situations are possible ranging from vaporized bits to static chunks to chunks propelled by an explosion.
Splits the existing On Death hook into independent hooks for each relevant type. Adds On Ship Death, On Missile Death, etc. Also adds On Missile Death Started to complement On Ship Death Started.
Mostly renaming of fields and functions, and moving some modelread sections into functions. This reorganization will put the code on a better footing for the model translation feature. No model translation code is included yet, and there should be no change in functionality.
This moves submodel rotation out of the AI pipeline and into object movement. With the exception of turret rotation (which remains in the AI code) this now allows all types of submodel rotation to happen in the same place. Many associated functions have also been cleaned up.
In addition to making the code cleaner and clearer, this will make it much easier for intrinsic rotations and new animations to be applied to non-ship objects, such as weapons.
* Remove Buggy Function and Let Debris end natrually
Removes this retail function that was actually perpetually postponing the death of debris at long distances instead of removing them. Debris lifetime is suitably short for the small, non-hull pieces (only a few seconds), while large pieces are supposed to be permanent. It also culls based on player position, which is not the correct approach, since the camera can be free from the player ship.
* Remove Vestigial Variables
These variables are no longer checked for anything now that we allow debris to go through its lifetime.
* Prevent Crashes from Weapons being deleted during the collision process
This puts in some safety checks to keep FSO from crashing while doing collision detection when close to the object limit.
* Remove Problematic Assertions and INT3's
Keeps FSO from crashing when low on Object slots from failed weapon and beam creations.
* Simplify Code with a good suggestion
Co-authored-by: Asteroth <[email protected]>
Co-authored-by: Asteroth <[email protected]>
Fixes#2834, a bug where non-capital ships did not generate debris pieces from their hull. It turns out this bug was introduced in #2416. If the `DoesNotExpire` flag is substituted for the `lifeleft` variable , it should be done in all locations.
With dynamic debris, as soon as the Debris vector was reallocated it invalidated the `prev` and `next` pointers. I figured out how to dispense with the actual list entirely, since we mainly need to know how many hull debris pieces there are and whether an individual piece is on the "list".
This is a follow-up to #2649.
Asteroth