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 refactors the tolower/toupper code to use standards-conformant logic, and also adds some helpful utility functions. Regular tolower/toupper must be supplied a value that can be represented as `unsigned char`, but the std:: functions are a bit more robust.
Multipart turrets that have no rotation specified in PCS don't have `movement_type` assigned properly within `modelread.cpp`, which eventually leads to a fatal crash. This two line fixe properly specifies the `movement_type` and fixes the crash. Tested and confirmed. Thanks to @Goober5000 for the assistance and troubleshooting.
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.
Follow-up to #3137. I missed two important details in the first implementation: the triggered animation needs to be an "initial position" type, and `model_update_instance` needs to be run on all subobjects, not just turrets.
This should really fix#3123. I still can't see the destroyed collector, but the Rahu no longer flickers when it spins around.
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.
As described in #3079, the old parsing of fvec and uvec used strtod and some POFs rely on this format. This is a quickfix that uses the new parsing method for only `get_user_vec3d_value`.
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.
This works around the Windows only limitation where the standard random
function only returns up to 2^15 which limits how many vertices in the
model can be picked.
Since we already have a function that handles this properly and returns
values in the entire integer range, using that fixes that low limit.
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.
Since angles are no longer written in three redundant places, the temporary hijacking of the turret angles in `model_make_turret_matrix` was overwriting the turret's proper position. So this PR just saves the angles and restores them when the calculation is done.
Goober5000