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[Valid_Dark]

I'm going to buy this book,
http://www.amazon.com/dp/1556229119/
has lots of good reviews and says it covers verticies and matricies really well.

[Skyrunner]

Okay... What is a good way to calculate the limit as an expression approaches a value?

This here site says I need to find the limit as h approaches zero to figure out the directional derivative (basically a directional, 3D version of the slope).

Should I just sub in a small number and use that?

[Mego]

Okay... What is a good way to calculate the limit as an expression approaches a value?

This here site says I need to find the limit as h approaches zero to figure out the directional derivative (basically a directional, 3D version of the slope).

Should I just sub in a small number and use that?

That should give you a decent estimate. The alternative is to do the calculus and figure out the exact derivative, but since it's implied you want to use this in a programming project, that would be very difficult.

[armeggedonCounselor]

I also mentioned this in the Happy Thread, but I'm making a game in Java. It's an all text game at this point, and I've almost gotten character creation finished. There's a lot of stuff I have to write for character creation, and I already know I'm going to have to rewrite a lot, to add in things like Skills, Stat Modifiers, Traits, etc.. I may have to make other parts of the game into different classes rather than putting everything through in one class.

As I also mentioned in the Happy Thread, I won't be posting it on the forums due to it being "Gentleman's Special Interest," if you get my drift. Though I may post snippets without anything dirty if I hit a roadblock I can't get past on my own.

[Mephisto]

My sleep habits recently have been horrid, but I do my best programming at around this time (as I'm typing this sentence, it's 3:46 AM). I've always found it to be because of the sleepy brain.

In any case, someone I know has been using the Pomodoro Technique to force himself to program and now he finds it hard to code without having some form of ticking device nearby. Hold on, these two thoughts are actually related.

I've been conditioning myself to program while listening to certain types of music so I can hopefully get into a more normal sleep schedule. So far, I've had the most luck downloading 4x4=12 by Deadmau5 and setting it to repeat. It's long enough that listening to it over and over isn't a problem and it doesn't have distracting vocals. Hours can go by and I won't even notice. Just call me Норка.

Does anyone else program to music?

[Skyrunner]

I like Beethoven's Große Fuge for some reason to listen to while programming. It's a whole 16 minutes, it isn't normal classical, and it's nice. xD

[Siquo]

Rammstein tends to work well for me. Non-english vocals are less distracting.

[cerapa]

Code: [Select]

Uint32 rmask, gmask, bmask, amask;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    rmask = 0xff000000;
    gmask = 0x00ff0000;
    bmask = 0x0000ff00;
    amask = 0x000000ff;
#else
    rmask = 0x000000ff;
    gmask = 0x0000ff00;
    bmask = 0x00ff0000;
    amask = 0xff000000;
#endif
if((Map = SDL_CreateRGBSurface(SDL_HWSURFACE, 800, 800, 32, rmask, gmask, bmask, amask)) == NULL) {
   return false;
   }

Code: [Select]

    if((Map = CSurface::OnLoad("./gfx/Map.bmp")) == NULL) {
        return false;
    }Does someone know what is wrong with the upper one? They should be creating identical surfaces(cept for the contents of course), but for some reason displaying the upper one is way slower.

EDIT: Apparently they werent creating identical surfaces. Using SDL_ConvertSurface(Map) fixed it. Still dont understand why the created one would have a different format.

[Valid_Dark]

I program to music, depends on what mood I'm in, but it's normally either classical or minimal/minimal house.

[Dutchling]

Fixed another problem by trying to copy everything over to here, and thereby noticing what was wrong.

Thanks, once again

[cerapa]

Fixed another problem by trying to copy everything over to here, and thereby noticing what was wrong.

Thanks, once again

You too?

Seems the best way to debug something is to try to explain it to others.

[Dutchling]

I didn't actually fixed I see now... Just removed '()' after a function which made it not work at all >.<


My problem:

Code: [Select]

# classfile.py
class classone:
    def __init__(self):
        <yadayada>

    def one(self):
        if two(self): <== causes the error
            <yadayada>

    def two(self):
        <yadayada>

Code: [Select]

# main.py
import classfile

thing = classfile.classone()
if thing.one():
    <yadayada>Gives me this error:

NameError: global name 'two' not defined

Halp D:
I defined it >.<

[Skyrunner]

So what to do when you have a problem ... and it seems like it's a complicated one? >_< Just struggle with it on your own? D:

[cerapa]

I didn't actually fixed I see now... Just removed '()' after a function which made it not work at all >.<


My problem:

Code: [Select]

# classfile.py
class classone:
    def __init__(self):
        <yadayada>

    def one(self):
        if two(self): <== causes the error
            <yadayada>

    def two(self):
        <yadayada>

Code: [Select]

# main.py
import classfile

thing = classfile.classone()
if thing.one():
    <yadayada>Gives me this error:

NameError: global name 'two' not defined

Halp D:
I defined it >.<

EDIT2: Spouted bullshit, python doesnt give a shit.

Anyway, asked my brother about python. In function one you have to use self.two(self), rather than just two(self).

[Siquo]

So what to do when you have a problem ... and it seems like it's a complicated one? >_< Just struggle with it on your own? D:

I think about it in the shower or when trying to sleep. Trick is to remember your solution until you're programming again
Also I sometimes try to explain it to my girlfriend so she'll understand, and sometimes the chosen metaphor hands me a new insight.