Pete's QBASIC Site

Another BASIC website. I'm still working on that competition that ended months ago.

I've got two more ideas for tutorials. I'm thinking of sending one to Ortise and one to here.

I'm taking it next semester. All I know about it is that it's a prerequisite for two programming classes I want to take (Visual Basic and C++). Also it's a prereq for a new program at the school that works with one of the UNCs and it offers a series of Computer Graphics and Game Design courses. Than...

I was a little curious if this approach would actually be faster or not. Much to my suprise, after comparing the routine using my optimizations, to the same routine using the floating point calculation, there was a 400% speed increase. Even when I used the FFix patch on the floating point routine, ...

The only way I can think of is using large numbers and hoping they're large enough so that truncating is negligible. Or using UDTs, but that takes more memory. :? I did manage to use only integers for rotation, but that was becuase of simplicity and eventually rounding errors did pop up after time (...

Have you checked the tutorials section here? There's all kinds of tutorials that will help. I wouldn't bother with the ones in the magaizines yet, but the begginers section should be very good for you. But you don't know about Pset ? :shock: I learned Pset before Print (I kept on typing Disp , befor...

Yes, but could it be a bug for numbers such as 12 and 368? I'm getting ridiculus numbers such as 1.788...E-307 . All of them. Just after I initalize them to equal numbers like 540.

Oh. Well, could a number such as 400 and 6 be Double without truncating or any other problems? I'm asking this becuase I'm having a very wierd bug. It's as if the numbers are being "squashed" as soon as they're declared, and I'm using Doubles. Either that, or being "exploded."

Mac wrote:

Mentat wrote:Please don't use e.

How about "d"?

K# DOUBLE
double-precision 64-bit floating-point
Sixteen place accuracy, Max = 1.797693134862315D+308

But what does the e+308 mean? I don't want precision, I just want a max number.

Please don't use e.

I won't give you the code, but I'll give you some hints. A) Use a matrix for the board B) Use different numbers for different states (ex: 0 is unhit water, 1 is unhit ship square ...) The rest should fall together. Now if you have specific questions about certian parts of code and technique, and if ...

Nodtveidt wrote:Oh, if you're using FB then you can just use OpenGL anyways. No point in reinventing the wheel.

Ohhhhhhh. I thought OpenGL was just for C++.

Nodtveidt wrote:Honestly? The best way to fill a triangle is to just use OpenGL.

In FB?
I wouldn't be surprised if it could.

I don't want to use paint due to the possibility of a sideways triangle (a line). I forgot to mention, these triangles are in 3D.

I just figured out how to do it. My book was talking about rasterization of polygons. Though it does some complicated stuff with vectors and matricies. I didn't figure out how to do it the way the book said, but the chapter/section on culling did lead me to a question. Which in turn, led me to an id...

Just dim the array, and put the length in at the end. And what ever the type is for the elements.

Oh, it was in TI. I have to keep everything archived, because by calc has a bad habit of clearing the RAM. So, debugging is slower than usual.

But, for this submistion I changed topics.

Well, the due date is today, and we are short on material, so I think it's okay.

FreeBASIC tutorials? I actually use just fragments of code in my tutorials, that are made for qb but can also be used in fb. I used to make dual-compatibility, but now I'm leaning to FB. My next tutorial is exclusively FB. Anybody who can tweek my code enough to make it QB compatible would already ...

Or, you can load the main image into a compiler such as BlitzBASIC that can easily rotate, save the turned images, and then just load them. Yes! It would be incredibly inefficient to use rotation via angles when all you want to do is reverse bits Yes, but using angles is more flexible. Angles can ha...