What do you need help with? Version 1

[Dlaor-guy]

[QUOTE=ZeekyHBomb;27026222][cpp] float temp = a.Bottom - b.Top;
if(temp <= 0) return; //a.bottom lies over b.top
float dy = a.Top - b.Bottom;
if(dy >= 0) return; //b.bottom lies over a.top
if(-temp < dy) dy = temp; //selects the smaller dy[/cpp]

If the original algorithm was okay, this should do it.
You should probably just write a few examples down on paper to see if it'd take the right branches.[/QUOTE]
Hmm... still nothing happening. I'll get cracking and find out if it's a problem on my part.

[Loli]

I just saw a program called "Key Scrambler"
[url]http://www.qfxsoftware.com/index.html[/url]

Any idea how I could go about doing this?
C#

[pro ruby dev]

[QUOTE=yakahughes;27024566][url]http://www.amazon.com/Art-Computer-Programming-Fundamental-Algorithms/dp/0201896834/ref=sr_1_2?ie=UTF8&qid=1293547308&sr=8-2[/url]

And the rest of the series. There are none better if you can understand them.[/QUOTE]

Reading that book to learn how to program is like driving a Ferrari to learn to ride a bike.

[no-named]

[quote]The program can't start because sfml-window.dll is missing from your computer. Try reinstalling the program to fix this program.[/quote]

I'm trying to use sfml. I looked up on the website, and I think I need to compile a solution. When I did, there was 4 failed, so it still doesn't work.

If I only knew where Visual C++ 2008 was looking for the dll's.

(I haven't really used C++ before, all my programming skills are from Flash.)

Does anyone know what I could do?

[Shane]

I have always wanted to make a program that was just an explorer type window that would connect to my VPS automatically and act as a drag and drop storage area. I am new to programming and figured it would be a good project to begin with. I have no idea what language I should do this in or if using ftp would be correct. Any one have any tips on where to begin and what language would be best to use?

[sim642]

[QUOTE=Loli;27034539]I just saw a program called "Key Scrambler"
[url]http://www.qfxsoftware.com/index.html[/url]

Any idea how I could go about doing this?
C#[/QUOTE]

It seems to be some kind of driver or something similar that returns correct data to all input areas, but wrong data to WinAPI functions that are used for keylogging.

[Z_guy]

[QUOTE=no-named;27037285]I'm trying to use sfml. I looked up on the website, and I think I need to compile a solution. When I did, there was 4 failed, so it still doesn't work.

If I only knew where Visual C++ 2008 was looking for the dll's.

(I haven't really used C++ before, all my programming skills are from Flash.)

Does anyone know what I could do?[/QUOTE]
You need to copy the SFML dlls to the same directory as your executable.

[Richy13]

[QUOTE=raBBish;26851895]You can't know that T is a type with rect and collisionDetectionData fields. If they're defined in an interface or a parent class, you can do this:

[csharp]public Boolean intersectPixels<T>(ref T myReference) where T : SomeClass[/csharp]

If they're defined in only one class, I don't see any reason to use generics there.

[editline]21st December 2010[/editline]

Also, why are you using ref?[/QUOTE]

Came back to this, i ended up having
[csharp]public Boolean solidsIntersects(Player something)
{
Vector2 possiotionOnMap;
possiotionOnMap.X = something.position.X / 32;
possiotionOnMap.Y = something.position.Y / 32;
Console.WriteLine("x: " + possiotionOnMap.X + "y: " + possiotionOnMap.Y);
return false;
}
public Boolean solidsIntersects(entity something)
{
//something

return false;
}[/csharp]
as i cant do [csharp]public Boolean intersectPixels<T>(ref T myReference) where T : SomeClass and SomeClass2[/csharp]
That works fine for me but if you cant do the later example why would you need generics? why not just do what i did in the first place

[pollyzoid]

[QUOTE=Richy19;27051243]That works fine for me but if you cant do the later example why would you need generics? why not just do what i did in the first place[/QUOTE]

[csharp]public Boolean intersectPixels<T>(ref T myReference) where T : SomeClass[/csharp]

That means T has to be a class derived from SomeClass. It could work if your entities have a shared parent class or interface (Entity, IEntity, BaseEntity or something like that), which declares the members and methods you need to use in the function.

[Richy13]

Ahh i see

Also is it possible to have a Console window AND an XNA Window? so i can write to console from my XNA Game?

[Mattz333]

Trying to get SFML2 working, but I get errors I can't find a solution to when I build my program:

/usr/local/lib/libsfml-window.so||undefined reference to `XRRConfigCurrentConfiguration'|
/usr/local/lib/libsfml-window.so||undefined reference to `XRRSetScreenConfig'|
/usr/local/lib/libsfml-window.so||undefined reference to `XRRFreeScreenConfigInfo'|
/usr/local/lib/libsfml-window.so||undefined reference to `XRRGetScreenInfo'|
/usr/local/lib/libsfml-window.so||undefined reference to `XRRConfigSizes'|
||=== Build finished: 5 errors, 0 warnings ===|

The compile and install of sfml2 seemed to go fine. I don't understand why I can't compile my test program.

[commander204]

[QUOTE=Richy19;27051493]Ahh i see

Also is it possible to have a Console window AND an XNA Window? so i can write to console from my XNA Game?[/QUOTE]

Just make the game make the console and manage it from there.

[Richy13]

[QUOTE=commander204;27053863]Just make the game make the console and manage it from there.[/QUOTE]

Thats what i dont know how to do.
Is there a console class?

[WTF Nuke]

What's the best way of going about a multi-layered background in a 2d game? I'm thinking having like 2 layers of background, one bigger than the other. The smaller one is in the back and moves little, while the one in front of it moves more.

[commander204]

[QUOTE=Richy19;27054074]Thats what i dont know how to do.
Is there a console class?[/QUOTE]

Not in the way you want it, I think your best bet is to make a new form in that form simply add a textentry(if you want console commands) and a textbox, then send a message to the form from the game, etc...

[WTF Nuke]

I just updated SFML 2 and for some reason when I run my game now I get "vector iterator not dereferencable". I set up breakpoints over the areas that use ANY vector what so ever, but no dice, it crashes after wards. I have no idea where to look. Any hints on where to set up breakpoints? Also, does SFML 2 now work with the latest ATi drivers?

[ZeekyHBomb]

Doesn't the debugger intercept the crash so you can look at the stack 'n shit?

[Jookia]

[QUOTE=Mattz333;27052511]Trying to get SFML2 working, but I get errors I can't find a solution to when I build my program:

/usr/local/lib/libsfml-window.so||undefined reference to `XRRConfigCurrentConfiguration'|
/usr/local/lib/libsfml-window.so||undefined reference to `XRRSetScreenConfig'|
/usr/local/lib/libsfml-window.so||undefined reference to `XRRFreeScreenConfigInfo'|
/usr/local/lib/libsfml-window.so||undefined reference to `XRRGetScreenInfo'|
/usr/local/lib/libsfml-window.so||undefined reference to `XRRConfigSizes'|
||=== Build finished: 5 errors, 0 warnings ===|

The compile and install of sfml2 seemed to go fine. I don't understand why I can't compile my test program.[/QUOTE]

Link with X and Xrandr

[Richy13]

I have a small problem, its more trigonometry than programming
[img]http://img412.imageshack.us/img412/3815/23534052.png[/img]

So i have a player image and the sprite isnt in the center, the gun is.
I can change the center its self so i need to know the position of the center of my guy.
However this of course will change depending on the rotation of my guy so, i need to know how to figure that out

[MakeR]

Cx = offset to centre of your guy from the centre of the sprite (x direction) with no rotation.
Cy = offset to centre of your guy from the centre of the sprite (y direction) with no rotation.

C'x = offset after rotation (x).
C'y = offset after rotation (y).

C'x = Cx*cos(angle) - Cy*sin(angle)
C'y = Cx*sin(angle) + Cy*cos(angle)

You may need to change the signs depending on your coordinate system.

-edit-

By the looks of it your original y offset is 0, so just ignore the Cy's.

[Samperson123]

[QUOTE=Richy19;27072666]I have a small problem, its more trigonometry than programming
[img_thumb]http://img412.imageshack.us/img412/3815/23534052.png[/img_thumb]

So i have a player image and the sprite isnt in the center, the gun is.
I can change the center its self so i need to know the position of the center of my guy.
However this of course will change depending on the rotation of my guy so, i need to know how to figure that out[/QUOTE]

It's pretty simple. Just add the sine of the sprite's angle multiplied by the amount you want to move it to its X position, and cosine to its Y position. I might have that backwards, but I think that's all you need to do.

[editline]30th December 2010[/editline]

Ninjad!

[MakeR]

automerge.

[WTF Nuke]

[QUOTE=ZeekyHBomb;27070095]Doesn't the debugger intercept the crash so you can look at the stack 'n shit?[/QUOTE]

No it just says Debug Assertion Failed! Program: Blah Blah Blah File:Blah Blah/include/Vector Line 70. It opens up file free.c, which is about freeing heap stacks (after the crash in the IDE). I put a break point before a function and then right at the start of that function. It triggers the break point BEFORE the function, but crashes right after, without triggering the other break point.

[ZeekyHBomb]

That pretty much looks like the debugger intercepted it, so you should take a look further down the call stack.

[naelstrof]

-snip i can figure this out myself-

[Z_guy]

[QUOTE=WTF Nuke;27077925]No it just says Debug Assertion Failed! Program: Blah Blah Blah File:Blah Blah/include/Vector Line 70. It opens up file free.c, which is about freeing heap stacks (after the crash in the IDE). I put a break point before a function and then right at the start of that function. It triggers the break point BEFORE the function, but crashes right after, without triggering the other break point.[/QUOTE]
Switch to the call stack tab and go back to a function in your own code.

[WTF Nuke]

Thanks guys I am really pretty new to debugging well. It seems it's because of SFML 2 again. It blows up when I try to draw the text :(.

[editline]30th December 2010[/editline]

Yeah others are having a problems as well.

[FPSMango]

I'm not very good at c++ and these fucking pointers are hard to get a grip on, I pass the reference of a int[2] onto a function that takes the reference and changes [1] and [2] but when I run it, it tells me that I "cannot convert parameter 1 from 'int (*)[2]' to 'int *" I don't understand why this is a problem since the pointer only holds the reference to the variable(I think, but I bet this is wrong) Here's the code:

	void getSizeREF(int* ref){ 
		int* change;
		change = ref+1;
		*change = length;
		change++;
		*change = height;
	}

//Later in the code:
	int arr[2];
	testCube.getSizeREF(&arr);
	std::cout << arr[1];
	std::cout << arr[2];

Help a dabbling programmer Facepunch!

What was the c++ bbcode again?

[Richy13]

[QUOTE=FPSMango;27084933]

	void getSizeREF(int& ref){ 
		int* change;
		change = ref+1; //what does this mean?, do you mean ref[1]; ?
		change = length;
		change++;
		change = height;
	}

//Later in the code:
	int arr[2];
	testCube.getSizeREF(arr);
	std::cout << arr[0];
	std::cout << arr[1];

[/QUOTE]

try that, not that im any better at them

[FPSMango]

[QUOTE=Richy19;27085106]try that, not that im any better at them[/QUOTE]

About do you mean ref[1]; As far as I've learnt, an array is just a address that is put in front of the actual variables it contains(That sounded weird on paper but I think I get it in my head) so adding 1(adding 8 bitwise to the address since an int is 8 bytes long?) to the address of the array will be the equivalent of arr[0] and if I then add 1 to the address of arr[0] i get arr[1] and so forth.

And no it didn't work unfortunetly. The problem isn't what goes on there. The problem is that the compiler doesn't like that i pass the address of a int[2] to a pointer of type int. But I don't know enough c++ to know how to make a pointer to fit unfortunetly.