Heya!
I have a problem where I dont know the optimal approach.
I have a compiled library from matlab to a .lib file and headers. Basically a solved simulation where we can control inputs and step the simulation forward.
These are not compatible with UE4, as in I cant publically include the module they are included in. So I go through module 1 which includes the second one.
Not sure if this is the best approach but it works, not the issue.
I also need to have multiple components. Each component needs to run its own simulation. The library stores a lot states internally. I can initiate new models with a simple call like:
RT_MODEL_model_T *sim_model = model(&inputs, &outputs);
The problem is how to best allocate the model and input+output structs for each component. From interface.h I can’t reach the type definitions defined in model.h
I got it working by creating the ‘Interface’ as a UObject, which has void* sim_model as one of its variable. And then the input+output structs are shared between all interface-objects, and overwritten for each use.
Interface.h:
UCLASS()
class Plugin_API UM1_Interface: public UObject
{
GENERATED_BODY()
public:
UM1_Interface(const FObjectInitializer& ObjectInitializer);
private:
void* sim_model;
};
Interface.cpp:
ExtU_model_T inputs;
ExtY_model_T outputs;
void UVTM_Interface::Initialize()
{
sim_model= vtm_model(&inputs, &outputs);
model_initialize((RT_MODEL_model_T*)sim_model,&inputs,&outputs);
}
FVector UVTM_Interface::StepSim()
{
model_step((RT_MODEL_vtm_model_T*)sim_model, &inputs, &outputs);
return outputs.pos;
}
Any suggestions for a better approach?
f