What do you need help with? Version 1

[ZeekyHBomb]

If you meant to ask if it is detectable whether a location is unreachable via A*, then yes.
What your implementation does upon encountering that is up to you.

[HubmaN]

I don't have a clue whether this is correct behavior - screwing around with clang-c++ on Windows and catch clauses are only detecting thrown exceptions of derived classes when using public inheritance.

[Venice Queen]

[QUOTE=HubmaN;27582200]catch clauses are only detecting thrown exceptions of derived classes when using public inheritance.[/QUOTE]

I would imagine that would be correct?

[editline]22nd January 2011[/editline]

and fairly obvious too

[just4fun49]

So, i have the next piece of code written in Direct3D/C++. I have an exercise to make the window's background to fade from blue to black. I've been struggling to do it but i can't figure out how to do it. I'm kind of a newbie to Direct3D and i'm no expert at C++ either so i thought you guys might help me out a little bit.
[cpp]
// include the basic windows header files and the Direct3D header files
#include <windows.h>
#include <windowsx.h>
#include <d3d10.h>
#include <d3dx10.h>

// include the Direct3D Library file
#pragma comment (lib, "d3d10.lib")
#pragma comment (lib, "d3dx10.lib")

// global declarations
ID3D10Device* device; // the pointer to our Direct3D device interface
ID3D10RenderTargetView* rtv; // the pointer to the render target view
IDXGISwapChain* swapchain; // the pointer to the swap chain class

// function prototypes
void initD3D(HWND hWnd); // sets up and initializes Direct3D
void render_frame(void); // renders a single frame
void cleanD3D(void); // closes Direct3D and releases memory

// the WindowProc function prototype
LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

// the entry point for any Windows program
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
HWND hWnd;
WNDCLASSEX wc;

ZeroMemory(&wc, sizeof(WNDCLASSEX));

wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)COLOR_WINDOW;
wc.lpszClassName = L"WindowClass";

RegisterClassEx(&wc);

hWnd = CreateWindowEx(NULL,
L"WindowClass",
L"Our First Direct3D Program",
WS_OVERLAPPEDWINDOW,
300, 300,
800, 600,
NULL,
NULL,
hInstance,
NULL);

ShowWindow(hWnd, nCmdShow);

// set up and initialize Direct3D
initD3D(hWnd);

// enter the main loop:

MSG msg;

while(TRUE)
{
if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);

if(msg.message == WM_QUIT)
break;
}

render_frame();
}

// clean up DirectX and COM
cleanD3D();

return msg.wParam;
}

// this is the main message handler for the program
LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case WM_DESTROY:
{
PostQuitMessage(0);
return 0;
} break;
}

return DefWindowProc (hWnd, message, wParam, lParam);
}

// this function initializes and prepares Direct3D for use
void initD3D(HWND hWnd)
{
DXGI_SWAP_CHAIN_DESC scd; // create a struct to hold various swap chain information

ZeroMemory(&scd, sizeof(DXGI_SWAP_CHAIN_DESC)); // clear out the struct for use

scd.BufferCount = 1; // create two buffers, one for the front, one for the back
scd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM; // use 32-bit color
scd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT; // tell how the chain is to be used
scd.OutputWindow = hWnd; // set the window to be used by Direct3D
scd.SampleDesc.Count = 1; // set the level of multi-sampling
scd.SampleDesc.Quality = 0; // set the quality of multi-sampling
scd.Windowed = TRUE; // set to windowed or full-screen mode

// create a device class and swap chain class using the information in the scd struct
D3D10CreateDeviceAndSwapChain(NULL,
D3D10_DRIVER_TYPE_HARDWARE,
NULL,
0,
D3D10_SDK_VERSION,
&scd,
&swapchain,
&device);

// get the address of the back buffer and use it to create the render target
ID3D10Texture2D* pBackBuffer;
swapchain->GetBuffer(0, __uuidof(ID3D10Texture2D), (LPVOID*)&pBackBuffer);
device->CreateRenderTargetView(pBackBuffer, NULL, &rtv);
pBackBuffer->Release();

// set the back buffer as the render target
device->OMSetRenderTargets(1, &rtv, NULL);

D3D10_VIEWPORT viewport; // create a struct to hold the viewport data

ZeroMemory(&viewport, sizeof(D3D10_VIEWPORT)); // clear out the struct for use

viewport.TopLeftX = 0; // set the left to 0
viewport.TopLeftY = 0; // set the top to 0
viewport.Width = 800; // set the width to the window's width
viewport.Height = 600; // set the height to the window's height

device->RSSetViewports(1, &viewport); // set the viewport
}

// this is the function used to render a single frame
void render_frame(void)
{
// clear the window to a deep blue
device->ClearRenderTargetView(rtv, D3DXCOLOR(0.0f, 0.2f, 0.4f, 1.0f));

// do 3D rendering on the back buffer here

// display the rendered frame
swapchain->Present(0, 0);
}

// this is the function that cleans up Direct3D and COM
void cleanD3D(void)
{
swapchain->Release(); // close and release the swap chain
rtv->Release(); // close and release the render target view
device->Release(); // close and release the 3D device
}
[/cpp]

[HubmaN]

[QUOTE=Venice Queen;27582348]I would imagine that would be correct?

[editline]22nd January 2011[/editline]

and fairly obvious too[/QUOTE]

You're right - it was, given one knows what the difference is. The behavior isn't the most intuitive.

[PiXeN]

[QUOTE=Dj-J3;27574845]I want to remove the border from Bad Company 2 so that i can play fullscreen in window mode.

AFAIK MainWindowHandle is the hwnd.[/QUOTE]

I'm pretty sure PB will kick you if you do that.

[Richy13]

Just reinstalled linux and when i try to build programs in codeblocks i get
[quote]

-------------- Clean: Debug in Perlin Noise ---------------

Cleaned "Perlin Noise - Debug"

-------------- Build: Debug in Perlin Noise ---------------

Compiling: main.cpp
/bin/sh: g++: not found
Process terminated with status 127 (0 minutes, 0 seconds)
0 errors, 0 warnings

[/quote]

Even tho i know GCC is installed

[Overv]

GCC isn't the same thing as G++, you need to install that separately.

[Skipcast]

[QUOTE=PiXeN;27583458]I'm pretty sure PB will kick you if you do that.[/QUOTE]

Forgot to say that i solved it. And PB does not kick me (playing on ranked servers).

It also works for other games, i've tried it on Amnesia, Minecraft, and even the application itself. :v:

[Richy13]

Hnng.
anyone know what this is abot?
[img]http://img220.imageshack.us/img220/8114/41180750.png[/img]

[Sirkorv]

sudo?

[mmavipc]

All of my projects are set to multi-byte, VC++ is adding a A to the end of one of my functions

Entity.h
[cpp]#pragma once

#include "..\..\Types.h"
#include "..\..\..\Shared\Types\Vectors.h"

namespace Mavgine
{
class EntityManager;
class COREEXPORT Entity
{
public:
Entity(const bool bPhysics, const bool bNetworked);
~Entity();

virtual void Tick();

virtual bool HasPhysics();

virtual bool IsNetworked();

virtual Vector3f GetPos();

virtual void SetPos(Vector3f v3fNewPos);

virtual EntityID GetID();

virtual bool Is3D();

virtual String GetModel();
virtual void SetModel(String strNewModel);

virtual String GetName();
virtual void SetName(String strNewName);

virtual String GetClassName();

friend class EntityManager;
private:
bool m_bPhysics;
bool m_bNetworked;
bool m_bIs3D;

Vector3f m_v3fPos;

EntityID m_MyID;

String m_strModel;
String m_strName;
};
}[/cpp]

test.cpp
[cpp]// test.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>

#define WIN32_LEAN_AND_MEAN
#include <Windows.h>

#include "..\Shared\Core\Engine\Engine.h"
#include "..\Shared\Types\Vectors.h"
#include "..\Shared\Core\Entity\Entity.h"
#pragma comment(lib, "C:\\Mavgine\\Debug\\Static Shared Lib.lib")
#pragma comment(lib, "C:\\Mavgine\\Debug\\Core.lib")

using namespace std;

class NewEntity : public Mavgine::Entity
{
public:
NewEntity(const bool bPhysics, const bool bNetworked) : Mavgine::Entity(bPhysics, bNetworked)
{
}
~NewEntity()
{
}
};

int _tmain(int argc, _TCHAR* argv[])
{
Mavgine::Vector3f vec1;
Mavgine::Vector3f vec2(2, 3, 4);
Mavgine::Vector3f vec3(5, 6, 7);
vec1 = vec2 * 4;
HMODULE hCore = LoadLibrary("core.dll");

Mavgine::EngineParams *pEngineParams = new Mavgine::EngineParams;

pEngineParams->uTickRate = 33;

Mavgine::CreateClassFn pCreateClass = (Mavgine::CreateClassFn)GetProcAddress(hCore, "CreateClass");

Mavgine::Engine *pEngine = (Mavgine::Engine*)pCreateClass(MavgineEngineVersion, pEngineParams);
NewEntity newent(false, false);

float debug = pEngine->GetRealTime();
while(true)
{
if(pEngine->ShouldTick())
{
pEngine->ForceTick();
float fETime = pEngine->GetEngineTime();
float fRTime = pEngine->GetRealTime();
float fDiff = fRTime - fETime;
cout << "Tick Engine Time: " << fETime << "s RealTime: " << fRTime << "s LAG: ";
printf("%f", fDiff);
cout << "s" << endl;
}
}

system("pause");
return 0;
}[/cpp]

Error:

test.obj : error LNK2001: unresolved external symbol "public: virtual class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Mavgine::Entity::GetClassNameA(void)" (?GetClassNameA@Entity@Mavgine@@UAE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ)
1>C:\Mavgine\Debug\test.exe : fatal error LNK1120: 1 unresolved externals

[editline]22nd January 2011[/editline]

It works if the name of that func is anything other than GetClassName, even GetClassname works, so I'll just use that. Still odd though

[editline]22nd January 2011[/editline]
FUCKING WINDOWS.H WAS FUCKING DOING IT FUCK YOU WINDOWS.FUCKINGH

[Richy13]

[QUOTE=Richy19;27589434]Hnng.
anyone know what this is abot?
[img_thumb]http://img220.imageshack.us/img220/8114/41180750.png[/img_thumb][/QUOTE]

Fixed this, seems to be that it didnt like the fact that i was using the old windows codeblocks projet file.
So i created a new project and included the old files and it works fine now

[mmavipc]

More problems
For some reason the sfml strings are fucking up
for example in the title, out of "Mavgine" only ine is being shown
RenderSystem.cpp
[cpp]#include "..\..\Shared\Render\RenderSystem\RenderSystem.h"
#include "..\..\Shared\Core\Entity\EntityManager.h"
#include "..\..\Shared\Types.h"
#include <SFML\System.hpp>
#include <SFML\Graphics.hpp>
#include <map>

sf::RenderWindow *pRenderWin = NULL;

std::map<Mavgine::String, sf::Image*> mapImgList;
std::map<Mavgine::EntityID, sf::Sprite*> mapSpriteList;

Mavgine::RenderSystem::RenderSystem(Mavgine::RenderSystemParams *pRenderParams)
{
static std::string test = "Mavgine";
pRenderWin = new sf::RenderWindow(sf::VideoMode(pRenderParams->w, pRenderParams->h), test);
}

Mavgine::RenderSystem::~RenderSystem()
{
}

void Mavgine::RenderSystem::ReDraw(EntityID eID)
{
}

void Mavgine::RenderSystem::Update()
{
Mavgine::EntityManager *entMgr = (Mavgine::EntityManager*)CreateClass(ENTITYMGRVER, NULL);
pRenderWin->Clear();
for(EntityID i = 0; i<MAXENTITIES; i++)
{
Mavgine::Entity *ent = entMgr->GetEntity(i);
if(!ent)
{
if(mapSpriteList[i])
{
delete mapSpriteList[i];
mapSpriteList[i] = NULL;
}
}
else
{
if(ent->Is3D())
{
continue;
}
if(!mapSpriteList[i])
{
mapSpriteList[i] = new sf::Sprite();
sf::Image *img = mapImgList[ent->GetModel()];
if(!img)
{
mapImgList[ent->GetModel()] = new sf::Image();
Mavgine::String strFileName = ent->GetModel();
mapImgList[ent->GetModel()]->LoadFromFile("lol.png");
}
img = mapImgList[ent->GetModel()];
mapSpriteList[i]->SetImage(*img);
}
Mavgine::Vector3f v3fPos = ent->GetPos();
Mavgine::Vector3f v3fScale = ent->GetScale();
mapSpriteList[i]->SetPosition(v3fPos.x(), v3fPos.y());
mapSpriteList[i]->Scale(v3fScale.x(), v3fScale.y());
pRenderWin->Draw(*mapSpriteList[i]);
}
}

pRenderWin->Display();
}

static Mavgine::RenderSystem *gRenderSystem = NULL;

extern "C"
{
RENDEREXPORT void* CreateRenderClass(char* version, void* other)
{
std::string str1 = version;
if(str1==RENDERSYSTEMVER)
{
if(!gRenderSystem)
{
gRenderSystem = new Mavgine::RenderSystem((Mavgine::RenderSystemParams*)other);
return gRenderSystem;
}
return gRenderSystem;
}
return NULL;
}
}[/cpp]

[b]Edited:[/b]
Nvm, fixed it, again.

[looped]

[QUOTE=Richy19;27591868]Fixed this, seems to be that it didnt like the fact that i was using the old windows codeblocks projet file.
So i created a new project and included the old files and it works fine now[/QUOTE]

probably just had to chown it or something

[Exosel]

I don't know if this is the right place to ask but, I want to learn a programming language but I don't know which one? Can anybody give some suggestions?

[20k]

[QUOTE=Exosel;27595506]I don't know if this is the right place to ask but, I want to learn a programming language but I don't know which one? Can anybody give some suggestions?[/QUOTE]

The main things people use are probably .NET languages (C# and java), C++, and python/lua

Personally i use C++ because it tries to hide less about what you're screwing around wtih

[yakahughes]

[QUOTE=Exosel;27595506]I don't know if this is the right place to ask but, I want to learn a programming language but I don't know which one? Can anybody give some suggestions?[/QUOTE]

Ask a million people and you'll hear every programming language mentioned multiple times. I recommend C++ because it forces you to know what's going on under the hood, and once you know C++, it makes learning [i]any[/i] other programming language far easier.

[Exosel]

[QUOTE=yakahughes;27595712]Ask a million people and you'll hear every programming language mentioned multiple times. I recommend C++ because it forces you to know what's going on under the hood, and once you know C++, it makes learning [i]any[/i] other programming language far easier.[/QUOTE]

[QUOTE=Icedshot;27595594]The main things people use are probably .NET languages (C# and java), C++, and python/lua

Personally i use C++ because it tries to hide less about what you're screwing around wtih[/QUOTE]

Thanks for the help guys.

[aero1444]

I'm having trouble importing resources in java.
Right now, I'm able to get the location of the files I'm looking for by doing this:

[lua]Toolkit.getDefaultToolkit().getClass().getResource("/relative/path/to/file.xyz").toString().replaceAll("%20"," ").substring(6)[/lua]

Look at it, it's horrible.

What's the best way to import a resource which will work both in the IDE and when I run the program as a jar? (The class I'm using to get an image requires that I use a FileInputStream)

[larikang]

I'm trying to learn C++, and even though I understand all of the concepts I really need hands-on practice. I would really like to have exercises like you would find in a programming textbook so that I can practice writing code.

Anyone know of a website that has those sorts of exercises?

[WTF Nuke]

[QUOTE=Larikang;27612747]I'm trying to learn C++, and even though I understand all of the concepts I really need hands-on practice. I would really like to have exercises like you would find in a programming textbook so that I can practice writing code.

Anyone know of a website that has those sorts of exercises?[/QUOTE]

[url]http://projecteuler.net/[/url] is great.

[Anthophobian]

OpenGL is giving me a headache. How do GLunits translate to pixels? Imagine if I wanted an quad to be drawn at 400x/200y, how do I calculate that in glunits? :saddowns:

[backwardspy]

[QUOTE=Anthophobian;27613557]OpenGL is giving me a headache. How do GLunits translate to pixels? Imagine if I wanted an quad to be drawn at 400x/200y, how do I calculate that in glunits? :saddowns:[/QUOTE]
That's entirely dependant on how you've set up your projection.

[larikang]

[QUOTE=WTF Nuke;27612796][url]http://projecteuler.net/[/url] is great.[/QUOTE]
Not for what I need. Project Euler does not require any use of object oriented programming, creating interactive programs, or advanced pointer use (to name a few examples).

I'm really looking for exercises specifically geared towards learning: programs that require broad knowledge of the specific language as opposed to problems that require knowledge of fast, clever algorithms (e.g. Project Euler).

[zenby]

I have a Hashtable (C#) with instances of a class, but I'm having trouble iterating through it.
I've tried everything I could find on MSDN. Using a DictionaryEntry make the value an object or something, and using a KeyValuePair with the correct type arguments gives a "Specified cast is not valid" exception.

[pro ruby dev]

[QUOTE=ZenX2;27619668]I have a Hashtable (C#) with instances of a class, but I'm having trouble iterating through it.
I've tried everything I could find on MSDN. Using a DictionaryEntry make the value an object or something, and using a KeyValuePair with the correct type arguments gives a "Specified cast is not valid" exception.[/QUOTE]

Use Dictionary<TK,TV> in System.Collections.Generic

[John.Lua]

[QUOTE=John.Lua;27618640]So I've decided to write a copy of GWEN (Similar in some aspects). So I've got my self Windower.dll, Contexter.dll and Gui.dll. In Gui.dll I am drawing the GUI. But I've hit a little problem with perspective rendering in OpenGL. The GUI does draw the rectangle but, it seems my projection matrix is off; the rectangle is draw half the size (320 x 240). I thought the Z component was messing it up but it doesn't seem to be the cause.

TL; DR: In OpenGL my rectangle is half the size, I'm using perspective (glFrustrum).

I bet I'm missing something simple.[/QUOTE]

I tried setting W to 1.0f, no avail.

[cpp]
Window::Message Msg;
Msg.IsRunning = true;
while(Msg.IsRunning) {
Msg = g_pEditorWindow->GetNextMessage();

switch(Msg.MsgType) {
case Window::MSG_TYPE_RESIZED: {
if(Msg.Height == 0) { // Divide by 0
Msg.Height = 1;
}

UpdateContext(Msg.Width, Msg.Height);
} break;
}

glClearColor(112.0f/255.0f, 112.0f/255.0f, 112.0f/255.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();

// Render gui (test)
g_pEditorRenderer->Begin();

g_pEditorRenderer->SetDrawColor(Gui::Color(179, 179, 179));
g_pEditorRenderer->DrawFilledRect(Gui::Rect(640 - 120, 0, 120, 480));

g_pEditorRenderer->End();

glFlush();
g_pEditorContext->Swap();
}
[/cpp]

[editline]23rd January 2011[/editline]

[img]http://anyhub.net/file/1zLz-guierror.png[/img]

[Exosel]

Does anybody know or can recommend some really good books for learning C++?

[Darwin226]

[QUOTE=John.Lua;27620907]I tried setting W to 1.0f, no avail.

[cpp]
Window::Message Msg;
Msg.IsRunning = true;
while(Msg.IsRunning) {
Msg = g_pEditorWindow->GetNextMessage();

switch(Msg.MsgType) {
case Window::MSG_TYPE_RESIZED: {
if(Msg.Height == 0) { // Divide by 0
Msg.Height = 1;
}

UpdateContext(Msg.Width, Msg.Height);
} break;
}

glClearColor(112.0f/255.0f, 112.0f/255.0f, 112.0f/255.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();

// Render gui (test)
g_pEditorRenderer->Begin();

g_pEditorRenderer->SetDrawColor(Gui::Color(179, 179, 179));
g_pEditorRenderer->DrawFilledRect(Gui::Rect(640 - 120, 0, 120, 480));

g_pEditorRenderer->End();

glFlush();
g_pEditorContext->Swap();
}
[/cpp]

[editline]23rd January 2011[/editline]

[img_thumb]http://anyhub.net/file/1zLz-guierror.png[/img_thumb][/QUOTE]

Are you sure the coordinates aren't from 0,0 in the middle to 1,1 in top right?
I haven't read the whole discussion but that might be the problem.