Pioneer dev forum

I'd be very surprised if the Windows and Linux floating point representation were different. After all, it usually all comes down to hardware, and I dare hope x86 processors all use IEEE floats ? Its usually down to the options enabled on the platform in question. Here's an interesting article abou...

Half the point of the JSON savefile is to sort-of be human readable, so I'd still go with the hexfloats. You might like to just lift some code from a suitably-licensed libc somewhere.

I did pretty much the same thing: // helper methods for safely storing/retrieving doubles inline char *DoubleToHexFloat(double v) { static char buf[32]; snprintf(buf, sizeof(buf), "%a", v); return buf; } inline double HexFloatToDouble(const char *buf) { double v; sscanf(buf, "%lf"...

I found what I wrote. Not quite a spec, just the start of my thinking after a number of experiments. It was all in posts to the now-defunct pioneer-dev mailing list two years ago. http://pastebin.com/JiQeaDQu http://pastebin.com/tFz8GYsm http://pastebin.com/RZn57GsD http://pastebin.com/R9SjYujP That...

Because there's no way of doing that. You're reading a stream of bytes that have to be in the correct order. Almost no way of telling if what you've got is valid or invalid when you read it, and if you did what would you do with it? How do you fix it up? If you're reading a stream of bytes, then ye...

Just a note, you need to use hexfloats - decimal floats lose precision when you convert them to strings and back.

It'll be up in a couple of hours. I was waiting until I could get the precompiled models in, but I'm still having a few problems so I'm building now and will keep trying.

Oh good, nothing for me to do then *whistles*

There's still more things to improve, one of them would just be replacing the old-GUI screens with modern UI versions as they render more optimally anyway. Comm's screen and the F2-sector/system/galaxy views need rewriting. I'm starting to fiddle with these a little again now. No promises, but its ...

jpab wrote:Finally, as impaktor said, it would be a good idea to look at robn's json-savefile branch and perhaps use it as a starting point for this work.

Feel free to ask me questions about this. Its not fresh in my head (I haven't been very active on Pioneer for quote some time), but I did have a plan :)