I have a class object with this member function:
[source]
template<class T>
std::vector<T*> object::components_of_type() //returns a vector with pointers to the object's components of type T
{
...
}
[/source]
I want to bind a few helper functions to this member function to AngelScript. First I declare my rigid_body_component type:
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void bind_rigid_body_component(asIScriptEngine* Engine)
{
Engine->RegisterObjectType("rigid_body_component", sizeof(rigid_body_component), asOBJ_REF | asOBJ_NOCOUNT);
//
Engine->RegisterObjectMethod("rigid_body_component", "void apply_force(const float3&in)", asMETHODPR(rigid_body_component, apply_force, (const float3) , void), asCALL_THISCALL);
}
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Next I declare this helper function for AngelScript binding purposes:
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CScriptArray* object_rigid_body_components(object* Object)
{
// If called from the script, there will always be an active
// context, which can be used to obtain a pointer to the engine.
asIScriptContext *ctx = asGetActiveContext();
if( ctx )
{
asIScriptEngine* engine = ctx->GetEngine();
// The script array needs to know its type to properly handle the elements.
// Note that the object type should be cached to avoid performance issues
// if the function is called frequently.
asIObjectType* t = engine->GetObjectTypeById(engine->GetTypeIdByDecl("array<rigid_body_component@>"));
// Create an array with the initial size of N elements
const auto RigidBodyComponents = Object->components_of_type<rigid_body_component>();
const auto N = RigidBodyComponents.size();
CScriptArray* arr = new CScriptArray(asUINT(N), t);
for( asUINT i = 0; i < arr->GetSize(); i++ )
{
arr->SetValue(i, RigidBodyComponents);
}
// The ref count for the returned handle was already set in the array's constructor
return arr;
}
return 0;
}
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Next, I bind my object class as such:
[source]
void bind_object(asIScriptEngine* Engine)
{
Engine->RegisterObjectType("object", sizeof(object), asOBJ_REF | asOBJ_NOCOUNT);
//
Engine->RegisterObjectMethod("object", "array<rigid_body_component@> rigid_body_components()", asFUNCTION(object_rigid_body_components), asCALL_CDECL_OBJLAST);
}
[/source]
The last call to RegisterObjectMethod gives me the error output "(0, 0) : ERR : Failed in call to function 'RegisterObjectMethod' with 'object' and 'array<rigid_body_component@> rigid_body_components()'". What am I doing wrong? I can't find an example for binding a function that returns an array of elements around - if I'm missing one please point me to it.
