Hi Stephan, Thanks for your answer, i found the booklet, but it was a draft, so it was incomplete. An example of FFIOpaqueObject would be healpful, i think. Esteban already talked to me, and is helping me with this. What do you mean with "Chipmunk existing bindings" ?.
2017-09-16 4:42 GMT-03:00 Stephane Ducasse <stepharo.s...@gmail.com>: > Hi alvaro > > Thanks for the question. If you have any suggestion for the booklet on > UFFI let us know. > I will let esteban anwser because I do not know. > BTW did you check the chipmunk existing bindings? > > Stef > > On Fri, Sep 15, 2017 at 3:42 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. > > Any suggestion? > > Thanks in advance. > > > > Alvaro Piorno > >
