What do you need help with? Version 1

[backwardspy]

What exactly is the problem? Is there a compilation error?

Also, I think Keyboard.GetState() is an XNA thing

[toaster468]

[QUOTE=Chris220;25616245]What exactly is the problem? Is there a compilation error?

Also, I think Keyboard.GetState() is an XNA thing[/QUOTE]

"The name 'Keyboard' does not exist in the current context (CS0103) "
Ive been watching videos about XNA i might have gotten that and another function mixed up

[jA_cOp]

[QUOTE=toaster468;25616265]"The name 'Keyboard' does not exist in the current context (CS0103) "
Ive been watching videos about XNA i might have gotten that and another function mixed up[/QUOTE]

Use the return value from Console.ReadKey:
[cpp]
Console.WriteLine("Press any key:");
char c = Console.ReadKey().KeyChar; // Or use the .Key property for non-text input
Console.WriteLine("You have pressed: {0}", c);
[/cpp]

[ichiman94]

something from my old projects:
[cpp]public void controll()
{
ConsoleKeyInfo controller = new ConsoleKeyInfo();
controller = Console.ReadKey();
if (controller.Key == ConsoleKey.UpArrow ) {posy--; Console.Clear();}
...
[/cpp]

[jA_cOp]

There's no reason to create a new, empty ConsoleKeyInfo object only to throw it away at the next line...

[toaster468]

Thank you jA_cOp

[thomasfn]

How can I import an assembly from a dll in MC++?

[editline]24th October 2010[/editline]

Figured it out, it was just #using. Duh.

Next problem: I'm trying to make a class, defined in C#, from MC++. The compiler recognises the class but it complains that: none of the 2 overloads could convert all the argument types.

The constructor of the class accepts 2 strings. I am passing 2 strings, like this: System::String( script ), System::String( name )

[editline]24th October 2010[/editline]

Figured it out, it was just #using. Duh.

Next problem: I'm trying to make a class, defined in C#, from MC++. The compiler recognises the class but it complains that: none of the 2 overloads could convert all the argument types.

The constructor of the class accepts 2 strings. I am passing 2 strings, like this: System::String( script ), System::String( name )

[VeryNiceGuy]

Where is this god damn blue line thing coming from?!?
[img]http://filesmelt.com/dl/11111111.png[/img]
It's pissing me off because IT WON'T GO AWAY AGGGHHH :tinfoil:

[ScreenNamesSuck]

[QUOTE=VeryNiceGuy;25625586]Where is this god damn blue line thing coming from?!?
[img_thumb]http://filesmelt.com/dl/11111111.png[/img_thumb]
It's pissing me off because IT WON'T GO AWAY AGGGHHH :tinfoil:[/QUOTE]

How long has it been there?

[Richy13]

[QUOTE=thomasfn;25620309]
The constructor of the class accepts 2 strings. I am passing 2 strings, like this: System::String( script ), System::String( name )[/QUOTE]

System::String(script, name);

[VeryNiceGuy]

[QUOTE=ScreenNamesSuck;25626339]How long has it been there?[/QUOTE]
Either I just noticed it there or it just appeared and won't get out

[WTF Nuke]

I think the root of my linker woes is that the .lib files are compiled in VS 2005. I tried to premake4 it with the settings: premake4 vs2010 [--unicode] [--ticpp-shared] [--dynamic-runtime] but I can't seem to compile the output because the .lib files are "Unable to start program c:\ticpp\lib\ticpp.lib. This file is an unrecognized or unsupported binary file." Anyone got a clue as to how to fix this?

[Fewes]

If I want to simply declare an integer in the Source engine that'll be available for entities to check and which doesn't reset when for example reloading a save (it's for an inventory system), where do you suppose I would do this? I'm having a hard time understanding Source's code structure...

[Darwin226]

So, I've played around with 3D perspective and got everything working nicely with non-deprecated OpenGL but I have a problem.
I render a rotating rectangle (textured) and it rotates (roll) fine but when I pitch it down a bit and keep rolling it I get clipping on the left and right.

Here's a sceeenshot:
[img]http://b.imagehost.org/0360/clipping.png[/img]

and here's the shader code as I think the problem is there:

[cpp]#version 110

uniform float timer;
uniform mat4 window_matrix;
uniform mat4 model_matrix;
uniform int animated;
uniform int frames;
uniform int current_frame;

attribute vec2 texcoord;
attribute vec4 position;

varying vec2 frag_texcoord;

mat4 view_frustum(
float angle_of_view,
float z_near,
float z_far
) {
return mat4(
vec4( 1.0 / tan(angle_of_view), 0.0, 0.0, 0.0),
vec4( 0.0, 1.0 / tan(angle_of_view), 0.0, 0.0),
vec4( 0.0, 0.0, (z_far + z_near) / (z_far - z_near), 0.1),
vec4( 0.0, 0.0, -2.0 * z_far * z_near / (z_far - z_near), 1.0)
);
}

void main() {

vec2 temp = texcoord;

if (animated == 1) {

float step = 1.0 / float(frames);

if ( temp.x == 0.0 ){

temp.x = step * float(current_frame);
} else if ( temp.x == 1.0) {

temp.x = step * float(current_frame) + step;
}
}

frag_texcoord = temp;

gl_Position = window_matrix * model_matrix * view_frustum( radians( 60.0 ), 0.0, 100.0 ) * position;
}[/cpp]

[Richy13]

Hi im currently making a tile based game in C++
Now on top of the first layer of tiles i have added trees, these are supposed to get randomly generated (between 15 & 28 trees) and then are randomly positioned in the window making sure that they are atleast a set distance from any other tree (so they dont overlap) this is the code for the whole thing and i cant see anything wrong with it but it isnt working, trees are still overlapping and getting generated all over the place
[cpp]
const int treeint = sf::Randomizer::Random(15, 28);
int *treeX = NULL;
int *treeY = NULL;
treeX = new int[treeint];
treeY = new int[treeint];
for(int i = 0 ; i < treeint; i++ )
{
int treeXInt;
do{
treeXInt = sf::Randomizer::Random(0, 780);
if(i == 0)
{
treeX[i] = treeXInt;
}
else
{
for(int z = 0; z < i; z++)
{
if((treeXInt < (treeX[z] - 60)) || (treeXInt > (treeX[z] + 60)))
{
treeX[i] = treeXInt;
break;
}
}
}
}while(treeX[i] == NULL);

int treeYInt;
do{
treeYInt = sf::Randomizer::Random(0, 620);
if(i == 0)
{
treeY[i] = treeYInt;
}
else
{
for(int z = 0; z < i; z++)
{
if((treeYInt < (treeY[z] - 80)) || (treeYInt > (treeY[z] + 80)))
{
treeY[i] = treeYInt;
break;
}
}
}
}while(treeX[i] == NULL);

std::cout << treeX[i] << std::endl;
std::cout << treeY[i] << std::endl;
}
[/cpp]

[Quarternions]

I tried using farseer but my collisions are off, this is what I've posted on the farseer forums but no one answers ...

[url]http://farseerphysics.codeplex.com/Thread/View.aspx?ThreadId=232205[/url]

[ZeekyHBomb]

[QUOTE=Richy19;25678892]Hi im currently making a tile based game in C++
Now on top of the first layer of tiles i have added trees, these are supposed to get randomly generated (between 15 & 28 trees) and then are randomly positioned in the window making sure that they are atleast a set distance from any other tree (so they dont overlap) this is the code for the whole thing and i cant see anything wrong with it but it isnt working, trees are still overlapping and getting generated all over the place
[cpp]--codesnip--[/cpp][/QUOTE]

The problem in your code is that 1) new[] will initialize stuff as random memory (you could use new int[treeint](); to init to 0) 2) the tree is accepted as long as [i]one[/i] tree does not collide with the current.
[cpp]int distance(const sf::Vector2i &a, const sf::Vector2i &b)
{
return a * a + b * b;
}

//...
const std::size_t treeint = sf::Randomizer::Random(15, 28);
sf::Vector2i *trees = new sf::Vector2i[treeint];

for(std::size_t i = 0 ; i < treeint; i++ )
{
init_tree:
trees[i] = sf::Vector2i(sf::Randomizer::Random(0, 780), sf::Randomizer::Random(0, 620));

for(std::size_t z = 0; z < i; z++)
{
if(distance(trees[i], trees[z]) < 100 * 100)
{
goto init_tree;
}
}

std::cout << trees[i].x << '\n' << trees[i].y << std::endl;
}[/cpp]

[Richy13]

[QUOTE=ZeekyHBomb;25680020].
[cpp]int distance(const sf::Vector2i &a, const sf::Vector2i &b)
{
return a * a + b * b;
}
[/cpp][/QUOTE]

It doesnt seem to like that code, says "no match for operator * in a * a
and teh same for b * b
im guessing it cant multiply the 2 vectors

-snip-- didnt work

[ZeekyHBomb]

Oops
[cpp]int distance(const sf::Vector2i &a, const sf::Vector2i &b)
{
const int dx = a.x - b.x, dy = a.y - b.y;
return dx * dx + dy * dy;
}[/cpp]

[esalaka]

[QUOTE=ZeekyHBomb;25681037]Oops
[cpp]int distance(const sf::Vector2i &a, const sf::Vector2i &b)
{
const int dx = a.x - b.x, dy = a.y - b.y;
return dx * dx + dy * dy;
}[/cpp][/QUOTE]

But... Isn't distance sqrt( abs( x2-x1 + y2-y1 ) ) or am I on something?

[Richy13]

Works now thanks :D

[ZeekyHBomb]

[QUOTE=esalaka;25681105]But... Isn't distance sqrt( abs( x2-x1 + y2-y1 ) ) or am I on something?[/QUOTE]

It's sqrt(dx² + dy²): (a² (the distance) = b² (dx²) + c² (dy²)), but:
[QUOTE=ZeekyHBomb;25680020][cpp]if(distance(trees[i], trees[z]) < 100 * 100)[/cpp][/quote]
already taken into consideration. Squaring the 100 instead of squarrooting the distance :D

[esalaka]

[QUOTE=ZeekyHBomb;25681140]It's sqrt(dx² + dy²): (a² (the distance) = b² (dx²) + c² (dy²)), but:

already taken into consideration. Squaring the 100 instead of squarrooting the distance :D[/QUOTE]

That's an interesting way to solve the problem. I wouldn't name the method "distance", though.

And yeah, I just realized the distance can be solved from the Pythagoran theorem. I'm smart today.

[MakeR]

[QUOTE=esalaka;25681208]That's an interesting way to solve the problem. I wouldn't name the method "distance", though.[/QUOTE]

That's the normal way to solve the problem, avoiding the square root by comparing the distance squared to 100*100.

[backwardspy]

[QUOTE=esalaka;25681105]But... Isn't distance sqrt( abs( x2-x1 + y2-y1 ) ) or am I on something?[/QUOTE]
That is correct

Edit:
:ninja:

I don't even know how I managed to get ninja'd that much
I swear I didn't have the thread open for that long :monocle:

Edit 2:
Wait no that isn't right

Totally realised that before Zeeky pointed it out

[ZeekyHBomb]

No it's not. He forgot squaring the deltas.

[pikzen]

[QUOTE=esalaka;25681105]But... Isn't distance sqrt( abs( x2-x1 + y2-y1 ) ) or am I on something?[/QUOTE]

AB = sqrt((Xb - Xa)² + (Yb - Ya)²)
Or, if you're in a tri-dimensional space
AB = sqrt((Xb - Xa)² + (Yb - Ya)² + (Zb - Za)²)

[esalaka]

[QUOTE=pikzen;25682306]AB = sqrt((Xb - Xa)² + (Yb - Ya)²)
Or, if you're in a tri-dimensional space
AB = sqrt((Xb - Xa)² + (Yb - Ya)² + (Zb - Za)²)[/QUOTE]

I was already corrected and already noticed that myself, too, thank you very much.

[pikzen]

[QUOTE=esalaka;25682351]I was already corrected and already noticed that myself, too, thank you very much.[/QUOTE]
Didn't saw page 87 :smith:

[noctune9]

In C#, I'm having a List with a lot of objects on. I have several threads iterating over the list, but I occasionally need to remove objects from the list, preferably in another thread. Can I in any way make it thread safe for multiple threads to iterate over and occasionally remove elements?

Or should I use a database? MSSQL would be the obvious choice for C#, but I'd like it to be as cross-compatible as possible, so is MySQL a good alternative for C#?