Allow scripts to reference submodels, submodel instances, and model instances. Currently just a few properties (like Orientation and Radius) can be accessed, but this can be easily expanded in the future.
Also add relevant functions to calculate real-world positions and orientations of rotated submodels.
Consolidated these functions and replaced the `find_submodel_point_*` functions with their closest `world_find_` counterparts. (One of those functions may not have actually worked correctly.) Also use the correct coordinate logic when returning normals from collision info in scripting.
Related to #3985 although not yet a fix for it.
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.
There are a few related improvements here:
1) Add a new function for iterating over the submodel hierarchy
2) Add a counterpart to the `subobj_num` field so that a submodel can refer to its ship_info subsystem
3) Update `ship_model_replicate_submodels` to replicate all movable submodels, even the ones that aren't associated with subsystems
Fixes#3967
By anchoring a dockpoint to a submodel, the dockpoint will move when the submodel moves. Historically this has been done by inspecting the path associated with a dockpoint, but this method will not work if there is no path or no rotation mode specified. Here is an alternate method that allows the submodel to be specified explicitly through a dockpoint property.
1) Changes the submodel flags to use a flagset instead of several booleans
2) Adds `rotate_accel` to allow submodel rotation acceleration to be specified
Submodel acceleration can now be instant; dumb-rotating submodels always instantly accelerate (and have always done so)
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.
This system adds the code necessary for letting content creators specify
complex events by specifying a simple, program-like sequence of
operations that will be executed by the engine when a certain event is
triggered.
This PR re-implements the look_at feature, which has been broken for many years. A look-at rotation is a type of intrinsic_rotation, just like dumb-rotations. The same code handles both; the only difference is whether submodel_rotate or submodel_look_at is called to apply the actual movement.
The previous look_at parsing code has been optimized by performing the name-to-submodel resolution when the model is actually parsed, instead of when the first look-at rotation is called. This avoids the need to store a name in the submodel struct and also avoids cluttering the look_at function.
This PR is essentially bookkeeping, except for the submodel_look_at method. This method takes advantage of the submodel rotation upgrade and calculates angles in almost the same way as the new turret rotation code. It's much more elegant, much less hackish, and works for all detail levels.
These two situations mostly relied on the obsolete model code which didn't include model instances. Data for submodel positions and for whether a submodel is blown off are now stored exclusively in model instances, not the model itself.
This fixes#3124.
It appears that live debris is not supposed to have a parent submodel; see the retail NTF Boadicea. This removes the parent from any live debris that might have it.
This should fix#3078.
Since instance-specific fields have been moved to polymodel_instance and submodel_instance, the gun_submodel_rotation field should also be moved. This is also reworked a bit to keeping track of the rotation via the normal submodel instance angles.
This removes an unnecessary look_at field as well.
Tyler Blount