A Simpler RPG

KermMartian · Site Admin (Posts: 64080)

And don't forget that with fixed-point packing, you could fit 99.99 and 99.99 together in a single floating-point number. Smile

KermMartian · Site Admin (Posts: 64080)

For example, say you have two numbers A and B. If you can guarantee that A and B are both always between 0.00 and 99.99, with no more than two decimal places (ie, they can be 84.39 but never 2.109 or 103.4), then you could pack, for example, 12.34 and 56.78 together like this:

12345678

The packing code is simple (in E6 and E2, "E" is the small-caps E), here I'm putting the packed value in C:

KermMartian · Site Admin (Posts: 64080)

Well, it's just packing in general; the fact that you're trying to pack in floating-point numbers means you need to call if fixed-point packing. It's fixed-point because you're dictating the exact number of decimal places, as is necessary to make the system consistent (for example, I'm sure you can see the problems if A is 10.001 and B is 80.00 - when you unpack A will be 10.00 and B will be 90.00).