How to tie these attributes together (from two different classes)?

[luckiejacky]

float npos[3];

D3DXVECTOR3 m_position;

something like

position = &npos[0];

[2kaud]

&npos[0] is of type float*. m_position is of type D3DXVECTOR3. Unless class D3DXVECTOR3 has an overloaded operator= (or constructor etc) for type float*, I'm not seeing how a type of D3DXVECTOR3 can be assigned from a type float*?

To tie attributes together, there needs to be some way of associating one with the other. Your code/post doesn't say much about what is trying to be achieved??

You could have a map as in

map<D3DXVECTOR3*, float*> mpos_npos;

but without further info can't really provide much guidance.

[luckiejacky]

Say in one module,
npos is changed,
so in m_position,
it is directly showing that value immediately.
Because in the module that contains npos,
it actually add on to the m_position value.

Say the m_position is changed by the pathfinder in one place.
It is incremented by the collision avoider in another place.

[VictorN]

float npos[3];

D3DXVECTOR3 m_position;

something like

position = &npos[0];

Did you try one of the ctors mentioned in https://msdn.microsoft.com/en-us/lib...(v=vs.85).aspx ?

[2kaud]

I didn't realise that D3DXVECTOR3 was Microsoft - not being involved with graphics. . From the reference supplied by Victor in post #4, there is a constructor that takes a parameter of float* - as I queried in post #1. So

float npos[3];

D3DXVECTOR3 m_position (npos);