Pocket Burning Sand (Open Source)

neilnapier · #81 (**permalink**) 12-09-2007, 02:29 PM

I didn't realise how popular this program would be when I released it... So far it has about 4 times as many posts as the others.

The creator of the PC version did warm me of the slowness that may occur but it sounds god that you seem to have sound a fairly fast way.

would it be possible to use the liquids with the pensizes and such and so be able to make it release the liquids in a more circular format first. (it is not spread out when created like in the PC version)

Also these things don't need to be implemented straight away... As long as the basis of the game is created that is all that matters at the moment, then things like moddability, speed and other things will be implemented later.

colin9876 · #82 (**permalink**) 12-09-2007, 04:10 PM

Easy to change the pens, do u mean like this? Ive just used Agrahams superfast library with a bigger pen footprint. U need to run this from the same folder with the bithandler.dll done for ttt

Note to AGraham.
I want to give Neil what Ive done so far so we can integrate it into his nice BS program, and require a change to the bithandler?
Now I know u said u werent that keen on graphics, but I notice that uve only been off doing Maths (boring lol!) instead so ur talents would be appreciated here!

need varible 'spread' sent to bithandler and
px(i)=px(i) + rnd(-spread,spread) in the loop before the pixels are plotted.

e.g. Spread might be say 0.6 so all pixels get num ranging from -.6 to +.6 added to px each move down

1) N.B. dont need any variation on y velocity just that change on px.
2) Im not sure how the random num generator works in C, does it just give u a num between 0 & 1?
if so I guess it will be px(i)=px(i) +(RND-0.5)*2*spread or something like that. Im sure u know how to do it as u like Maths so much!

If u can do it will u add it to the bigpenttt below, Ive changed the way boundry checking is done so its faster

neilnapier · #83 (**permalink**) 12-09-2007, 08:51 PM

Where is the BMP handler? I can't find it in the libraries?

Hold on i read your post and i'll go try it out.

EDIT: pretty fast but when I use blnDRAG = 1 thing tomake it draw it when the stylus is down and no when it was up, then it works on the computer but when on a PPC it waits untill you let go. Why is that?

colin9876 · #84 (**permalink**) 12-10-2007, 08:24 AM

I actually tried to do the library change myself but no progress. I downloaded the microsoft free c# sdk, and the .net sdk (VisualStudio2003) but cant even get hello world to run yet. Its not user friendly. This just confirms my allegence to Basic4ppc!

Just out of interest tho would Agraham post the c# from the bithandler.dll? Would be interested to see how u did it?

Would still like the one line added if u will do it?

agraham · #85 (**permalink**) 12-10-2007, 09:04 AM

Quote:

Originally Posted by colin9876

Would be interested to see how u did it?

Txt added as the forum will only upload certain type of files.

colin9876 · #86 (**permalink**) 12-10-2007, 10:47 AM

Thanks - nasty stuff C language by the looks of it!
whats the rnd function in C?
I see .Net framework has
double RandomNumber = RandomClass.NextDouble();
so extra line could be
public int timer(int[]x, int[]y, int n, double spread)
..
px(i)=px(i)+(2*RandomClass.NextDouble()-1)*spread

Is it better to use the c# function for generating a random number or the .Net RandomClass function - or are they both the same thing?

agraham · #87 (**permalink**) 12-10-2007, 01:29 PM

Quote:

Originally Posted by colin9876

nasty stuff C language by the looks of it!

Not all. It's beautifully elegant, very safe to code but just not what you are used to. BTW you keep typing C - this may be shorthand on your part but this is C# - which is different to C in many ways

Quote:

whats the rnd function in C?

As this is C# not C there are no standard functions/libraries - it relies upon the .NET Framework.

Quote:

I see .Net framework has
double RandomNumber = RandomClass.NextDouble();

That's the one (or one of several)

More completely and with correct syntax. You need a new Random object to create the numbers and the C# compiler will complain that it can't convert a double to an int (because doubles are larger than ints so information can be lost) so you will need to cast it to an int yourself

Code:

Random rand = new Random();

public int timer(int[]x, int[]y, int n, double spread)
{
    ... 
    x[i]=x[i]+(int)((2*rand.NextDouble()-1)*spread);
    ...
}

Here I've done it for you, with source. I haven't time to test it as I have lost the B4PPC test prog I used but as it got through the compiler it is probably OK.

colin9876 · #88 (**permalink**) 12-10-2007, 03:06 PM

Looks much better! Thanks Agraham - Im sure Neil will think its a step in the right direction

neilnapier · #89 (**permalink**) 12-10-2007, 03:21 PM

Much better, well done!

I have altered it slightly so that the mousedown function is on but i'm not sure if it will work on PPC as I havene't tested it on it yet.

All that I have done is add a few lines

EDIT: Also has anyone noticed that sometimes when a stuck one falls then ir reappears at where it was stuck at and falls again. Is there any way to sort that?

colin9876 · #90 (**permalink**) 12-10-2007, 03:45 PM

Neil, dont worry about the stray pixels, its just because I didnt clear a value - I will correct it
As to ur changes - What did u hope to achieve? They dont make any difference on the PPC because you have to do a MouseDown before u can do a MouseMove. Are u wanting this program to run on the desktop aswell or is it soley aimed at the ppc?
If it is just a ppc app I would say leave those lines out because all its doing is (fractionally) slowing it down?