I am back with another problem ....
For my project I am using a Ubuntu box to double check my work done on a Mac.
I used to use a Ubuntu 32 bit installation, but now Qt 5.6 does not have precompiled 32 bit images any more.
So I changed my PC to be a Ubuntu 15.10 64 bit installation to be able to use Qt 5.6.
And now the trouble started with the b2d JSON C++ loader.
I got asserts in b2PolygonShape, stating that a polygon is degenerate. So I checked and the code fails on the first body and all the vertices values for x and y coordinates are either 0, 1 or -1.
So in b2dJson::jsonToFloat I checked the type of Json::Value and I do get a 3 which means real (e.g. floating point).
The code in jsonToFloat() is:
else
return value[name][index].asFloat();
Then I tried converting to other floating point formats, but always of the same 0, 1 and -1.
Just to double check, I used both GCC 5 and Clang on Ubuntu 64bit to compile the project, but with the same (wrong) result.
Code runs fine on:
- OSX (64bit)
- on iPad Mini 1 and iPad Air (32bit and 64bit unified)
- Ubuntu 32bit 15.10
Would you have any idea what could goes wrong with the Ubuntu 64bit build in b2dJson.cpp ?
Any hint where to start hunting for the problem ?
Could it be that the jsoncpp code is outdated ?
Thanks for your help again,
Thomas