Bay 12 Games Forum

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Should I post photographs or videos? I have worms, so videos would provide more complete information, but they'd also be harder on my bandwidth.

You can kill individuals, you can't kill people.  Throwing firepower at poor, angry, desperate people just makes them more poor, angry, and desperate, and as long as they are poor, angry, and desperate this will be the outcome.

Isn't this how USA won against Native Americans?

Well, one day Slaves to Armok III will come, and it will make DF obsolete. Don't ask me how is that even possible, because only Toady can envision such greatness.

Anyway, we have a precedent for open-sourcing "finished" games: LCS.

according to several posts, toadyone Pbuh never intends to release the source code, which is highly understandable.

Wait, what? I thought Toady said he's still not sure if he'll release the source once he's done with DF.

So, I'm writing a 2d physics library to use in a future side-scroller game. Now, I've run into a problem while implementing rotations: the program fails at basic arithmetic. Here's a concrete example:

I'm trying to rotate point A (0, 0) by 90 degrees around point B (1, 1). What I get is rotated point A(2, 3.71403e-007) instead of A(2, 0). Going trough the debugger I've found that it fails at this line:

y = center->get_y() + sin(points_angle) * points_distance;

where the values are:

      center->get_y()   1.0000000   float
      sin(points_angle)   -0.70710653   float
      points_distance   1.4142135   float
      sin(points_angle) * points_distance   -0.99999962859667590   double
      center->get_y() + sin(points_angle) * points_distance   3.7140332409535404e-007   double

As you can see, it works OK until it tries to add 1 and -0.99999962859667590. So it's clearly failing at basic arithmetic. I've tried typecasting all the numbers as floats (I can't really cast them as ints as it'd break rotation for other angles), but it didn't help at all.

So, how do I solve this problem so it never comes up again?

*edit* Apparently, I didn't understand the e-n notation. Everything was in fact working just fine.

Male: Gavrilo
Surname: Princip

I guess I had the wrong impression about MMORPGs then (I never played any). But anyway, in MMORPGs the point isn't so much to have huge battles as it is to have a huge number of people to outgrind. You don't even need to ever see them, you just need to see you have better skills and equipment than 80% of other people on that server. In FPSes the whole point is to shoot other people, so if you can't shoot at massive numbers of other people it's not an MMOFPS. I mean, if you slapped some kind of a 3D lobby on Battlefield 1942, would it suddenly become an MMOFPS? I say no - it'd just become an FPS with annoying and slow interface.