On Fri, Sep 15, 2017 at 9:42 PM, alvaro piorno <alvaropiorno...@gmail.com> wrote:
> Hi everybody, i´m using UnifiedFFI with Chipmunk2D library . > I want to get a pointer to a C Structure (cpBody) and set a position to it. > I have a subClass of FFIOpaqueObject to handle pointer. > > This is the "new " ffiCall : > self ffiCall: #(cpBody* cpBodyNew(cpFloat m, cpFloat i)) > > And this is a "seter" ffiCall: > > self ffiCall: #( void cpBodySetPosition( self, cpVect vector ) ). > > I`m not getting any "error" but the position is not updating. > I tried the same using Chipmunk directly and it works, so there is a > problem with what i have in Pharo. > A general approach might be to write your own C wrapper around Chipmunk library functions which just does a debug printout of parameters before calling the wrapped function. Use these for both from Pharo and your "direct" trial, and see how they compare. cheers -ben
