What are you working on? V7

[VoiDeD]

[QUOTE=DrTaxi;20318962]Doesn't UTF-8 do that as well?[/QUOTE]

UTF-8 is variable length encoding. Most characters in the ASCII range preserve their single bytes, but the rest can be two or more bytes.

[Lily]

Finally got SOMETHING to work on my model viewer for my engine. Atleast i got the ground to render without crashing my graphics card and giving me a bluescreen

[MakeR]

[QUOTE=xAustechx;20319492]I'm learning the SDL library. And this is what I have so far.

[img]http://i49.tinypic.com/28a0nqd.png[/img]

If you can guess the two sexy people in this image I'll give you the source.[/QUOTE]

James Allen and Garry Newman

[editline]09:37AM[/editline]

Source please.

[efeX]

-snip-

[xAustechx]

[QUOTE=MakeR;20319771]James Allen and Garry Newman

[editline]09:37AM[/editline]

Source please.[/QUOTE]

That's not Garry, it's High6.
Better luck next time though. :)

[Jallen]

[QUOTE=xAustechx;20319492]I'm learning the SDL library. And this is what I have so far.

[img_thumb]http://i49.tinypic.com/28a0nqd.png[/img_thumb]

If you can guess the two sexy people in this image I'll give you the source.[/QUOTE]

Ahahaha

[Ibutsu]

The stuff you guys make in this thread is awesome.
Wish I was able to make something half as cool. :frown:

[Lily]

I have a problem. For some reason i lose vertex data without any reason that i could see. take a look at this pic:
[IMG]http://img534.imageshack.us/img534/5312/problemr.png[/IMG]
That green vertex is supposed to be white and in the middle. And i clearly told that vertex to be white.
Any ideas?

[nullsquared]

[QUOTE=i300;20318099]Sweet! Wanna help a network-noob and post the source?[/QUOTE]

I'm as much of a network-noob as you are, I just started yesterday :v:

But here:

#include <iostream>
#include <string>
#include <stdexcept>
#include <map>
#include <boost/shared_ptr.hpp>
#include <boost/foreach.hpp>
#include <SDL.h>
#include <RakPeerInterface.h>
#include <RakNetworkFactory.h>
#include <RakNetTypes.h>
#include <BitStream.h>
#include <MessageIdentifiers.h>

#include "net_var.hpp"
#include "hash.hpp"

struct vec2
{
	float x, y;
	vec2(float x, float y): x(x), y(y) {}
	vec2(): x(0.0f), y(0.0f) {}
};

class networkable
{
	protected:

		typedef std::map<hash_t, netVarBase*> netVarMap;
		netVarMap _netVars;

		void _addNetVar(const std::string &name, netVarBase *what)
		{
			_netVars[hash(name)] = what;
		}

	public:

		bool hasNetVar(const std::string &name) const
		{
			netVarMap::const_iterator i = _netVars.find(hash(name));
			return i != _netVars.end();
		}

		template<typename T>
		netVar<T> &getNetVar(const std::string &name)
		{
			netVarMap::iterator i = _netVars.find(hash(name));
			if (i == _netVars.end())
				throw std::runtime_error("networkable does not have net var " + name);
			netVarBase &base = *i->second;
			if (base.type() != &typeid(T))
				throw std::runtime_error("net var " + name + " type mismatch");
			return static_cast<netVar<T>&>(base);
		}

		template<typename T>
		const netVar<T> &getNetVar(const std::string &name) const
		{
			// hack: use const_cast to avoid code duplication which might cause
			// issues in case the two implementations get out of sync
			return const_cast<networkable&>(*this).getNetVar(name);
		}

		networkable() {}
		virtual ~networkable() {}

		void validate()
		{
			netVarMap::iterator i;
			for (i = _netVars.begin(); i != _netVars.end(); ++i)
				i->second->validate();
		}

		bool valid() const
		{
			netVarMap::const_iterator i;
			for (i = _netVars.begin(); i != _netVars.end(); ++i)
				if (!i->second->valid())
					return false;
			return true;
		}

		void write(RakNet::BitStream &bs) const
		{
			netVarMap::const_iterator i;
			for (i = _netVars.begin(); i != _netVars.end(); ++i)
			{
				if (i->second->valid())
					continue; // don't write valid values
				// serialize net var ID (the hash)
				bs.Write(i->first);
				// write the actual data
				i->second->write(bs);
			}
			bs.Write((hash_t)0); // end of net vars
		}

		void read(RakNet::BitStream &bs)
		{
			while (true)
			{
				hash_t id;
				bs.Read(id);
				if (id == 0) // id of 0 is end of net vars
					break;
				netVarMap::iterator i = _netVars.find(id);
				if (i == _netVars.end())
					throw std::runtime_error("networkable tried to read invalid net var");
				i->second->read(bs);
			}
		}
};

class entity: public networkable
{
	protected:

	public:

		entity() {}
		virtual ~entity() {}
};

typedef boost::shared_ptr<entity> entityPtr;

class player: public entity
{
	protected:

		netVar<vec2> _pos;

		void _addNetVars()
		{
			_addNetVar("pos", &_pos);
		}

	public:

		player()
		{
			_addNetVars();

			_pos.set(vec2(50.0f, 50.0f));
		}

		~player() {}

		void move(const vec2 &m)
		{
			vec2 &p = _pos.get();
			p.x += m.x;
			p.y += m.y;
			_pos.invalidate();
		}
};

typedef std::map<hash_t, entityPtr> entityMap;

typedef unsigned char packetId_t;
enum
{
	ID_NETWORKABLE_UPDATES = ID_USER_PACKET_ENUM + 1,
	ID_CREATE_PLAYER
};

struct createPlayerMessage
{
	hash_t id;
};

int main(int argc, char *argv[])
{
	SDL_Init(SDL_INIT_EVERYTHING);
	SDL_Surface *screen = SDL_SetVideoMode(320, 240, 32, SDL_SWSURFACE);

	RakPeerInterface *peer = RakNetworkFactory::GetRakPeerInterface();
#if defined(BUILD_CLIENT)
	SocketDescriptor sd(0, NULL);
	peer->Startup(1, 0, &sd, 1);
	peer->SetMaximumIncomingConnections(1);
#elif defined(BUILD_SERVER)
	SocketDescriptor sd(1337, NULL);
	peer->Startup(8, 0, &sd, 1);
	peer->SetMaximumIncomingConnections(8);
#endif

#if defined(BUILD_CLIENT)
	std::string hostAddress = "192.168.1.2";
	std::cout << "connecting to " << hostAddress << "\n";
	peer->Connect(hostAddress.c_str(), 1337, NULL, 0);
#elif defined(BUILD_SERVER)
	std::cout << "waiting for connections\n";
#endif

	SDL_Surface *img = SDL_LoadBMP("img.bmp");

	entityMap entities;

	bool running = true;
	while (running)
	{
		SDL_Event evt;
		while (SDL_PollEvent(&evt))
		{
			switch (evt.type)
			{
				case SDL_QUIT:
					running = false;
				break;
			}
		}

		Packet *packet = NULL;
		while (packet = peer->Receive())
		{
			switch (packet->data[0])
			{
#if defined(BUILD_CLIENT)
				case ID_CONNECTION_REQUEST_ACCEPTED:
					std::cout << "connected successfully to " << packet->systemAddress.ToString() << "\n";

					// tell the server we want to create a player
					{
						RakNet::BitStream bs;
						createPlayerMessage msg;
						msg.id = hash("player1");
						bs.Write((packetId_t)ID_CREATE_PLAYER);
						bs.Write(msg);
						peer->Send(&bs, IMMEDIATE_PRIORITY, RELIABLE, 0, packet->systemAddress, false);
					}
				break;

				case ID_CONNECTION_ATTEMPT_FAILED:
					std::cout << "connection failed\n";
					running = false;
				break;

				case ID_CONNECTION_LOST:
					std::cout << "connection lost to " << packet->systemAddress.ToString() << "\n";
					running = false;
				break;

				case ID_CREATE_PLAYER:
					// server wants to create a player
					{
						RakNet::BitStream bs(packet->data, packet->length, false);
						bs.IgnoreBytes(1); // ignore the ID of the packet
						createPlayerMessage msg;
						bs.Read(msg);

						entityPtr ent(new player());
						entities[msg.id] = ent;
					}
				break;

				case ID_NETWORKABLE_UPDATES:
					// we got entity updates
					{
						RakNet::BitStream bs(packet->data, packet->length, false);
						bs.IgnoreBytes(1); // ignore the ID of the packet
						while (true)
						{
							hash_t id;
							bs.Read(id);
							if (id == 0) // id of 0 is end of networkables
								break;

							entityMap::iterator i = entities.find(id);
							if (i == entities.end())
								continue; // bad entity?

							networkable &net = *i->second;
							net.read(bs);
						}
					}
				break;
#elif defined(BUILD_SERVER)
				case ID_NEW_INCOMING_CONNECTION:
					std::cout << "incoming connection from " << packet->systemAddress.ToString() << "\n";
				break;

				case ID_CONNECTION_LOST:
					std::cout << "connection lost to " << packet->systemAddress.ToString() << "\n";
				break;

				case ID_CREATE_PLAYER:
					// someone wants to create a player, accept the request
					{
						RakNet::BitStream bs(packet->data, packet->length, true);
						// interestingly enough we can reuse the same packet
						// and broadcast it to everyone
						peer->Send(&bs, IMMEDIATE_PRIORITY, UNRELIABLE_SEQUENCED, 0, UNASSIGNED_SYSTEM_ADDRESS, true);

						// then we can create our own player
						bs.IgnoreBytes(1);
						createPlayerMessage msg;
						bs.Read(msg);

						entityPtr ent(new player());
						entities[msg.id] = ent;
					}
				break;
#endif
			}
		}

#if defined(BUILD_CLIENT)
#elif defined(BUILD_SERVER)
		{
			RakNet::BitStream bs;
			bs.Write((packetId_t)ID_NETWORKABLE_UPDATES);
			// loop over the entities and see what needs to be updated
			for (entityMap::iterator i = entities.begin(); i != entities.end(); ++i)
			{
				networkable &net = *i->second;
				if (!net.valid())
				{
					// write the networkable's hash (id) first
					bs.Write(i->first);
					// then write the networkable data itself
					net.write(bs);
					net.validate();
				}
			}
			bs.Write((hash_t)0); // end of networkables
			peer->Send(&bs, IMMEDIATE_PRIORITY, UNRELIABLE_SEQUENCED, 0, UNASSIGNED_SYSTEM_ADDRESS, true);
		}
#endif

		for (entityMap::iterator i = entities.begin(); i != entities.end(); ++i)
		{
			entityPtr &ent = i->second;
			if (ent->hasNetVar("pos"))
			{
				netVar<vec2> p = ent->getNetVar<vec2>("pos");
				SDL_Rect dest;
				dest.x = int(p.get().x + 0.5f);
				dest.y = int(p.get().y + 0.5f);
				dest.w = img->w;
				dest.h = img->h;
				SDL_BlitSurface(img, NULL, screen, &dest);
			}
		}

		SDL_UpdateRect(screen, 0, 0, 0, 0);
	}

	SDL_FreeSurface(img);

	RakNetworkFactory::DestroyRakPeerInterface(peer);

	SDL_Quit();

	return 0;
}

I'll leave the details (hashing and netvars) up to you - it serves as a pretty good exercise to implement, and you might possibly come up with a better variant than what I have.

[ZomBuster]

Put it in code tags so you don't stretch the page so much

[Blynx6]

In openGL ( GLUT ), i'm trying to go through a multidimensional array

#define MAP_SIZEX 10
#define MAP_SIZEY 10
char map[MAP_SIZEX][MAP_SIZEY] = {
  {1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
};

How could I place a cube at each of the points?

I can't seem to figure it out..
GLUT code for cubes: glutSolidCube( 1 );
1 is the preferred size.

[nullsquared]

[QUOTE=ZomBuster;20321901]Put it in code tags so you don't stretch the page so much[/QUOTE]

Woops, sorry, fixed.

[ZeekyHBomb]

[QUOTE=Blynx6;20322266]In openGL ( GLUT ), i'm trying to go through a multidimensional array

#define MAP_SIZEX 10
#define MAP_SIZEY 10
char map[MAP_SIZEX][MAP_SIZEY] = {
  {1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
  {1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
};

How could I place a cube at each of the points?

I can't seem to figure it out..
GLUT code for cubes: glutSolidCube( 1 );
1 is the preferred size.[/QUOTE]
Seems for the fixed-function pipeline, as such you'd simply push, translate and pop the current matrix:
[cpp]for(int x = 0; x < MAP_SIZEX; ++x)
for(int y = 0; y < MAP_SIZEY; ++y)
if(map[x][y] != 0){
glPushMatrix();
glTranslatef(x*offset, y*offset, 0);
glutSolidCube(map[x][y]);
glPopMatrix();
}[/cpp]
At least that's how I think it would work.

[Lily]

Working on a program to turn obj files into my model files.
Does anyone have any idea whats the best way of turning this:

v  -10.0000 10.0000 -10.0000

into something like this:

ÿÿ€

(binary)
In C++

[NovembrDobby]

just realised you can add form controls to XNA forms, could be handy when I can't be bothered going through my own UI stuff or when debugging it:

[IMG]http://i163.photobucket.com/albums/t315/novemberdobby/handy.png[/IMG]

[nullsquared]

[QUOTE=Tobba;20322728]Working on a program to turn obj files into my model files.
Does anyone have any idea whats the best way of turning this:

v  -10.0000 10.0000 -10.0000

into something like this:

ÿÿ€

(binary)
In C++[/QUOTE]

#1, you can't. That's 3 bytes, meaning you'd have to encode 3 floating point values into 2 bytes, which is impossible.

#2, assuming that was just an example, you'd read the data and write it back out in some specific structure in binary mode

#3, why? The .obj is very simple, why do you need to convert it to your own binary format, which you then have to also parse and therefore make a complete circle?

[TheBoff]

In C++ does an enum belong in a .cpp, or a .h file?

[nullsquared]

[QUOTE=TheBoff;20323021]In C++ does an enum belong in a .cpp, or a .h file?[/QUOTE]

Wherever you need it.

[Lily]

[QUOTE=nullsquared;20322911]#1, you can't. That's 3 bytes, meaning you'd have to encode 3 floating point values into 2 bytes, which is impossible.

#2, assuming that was just an example, you'd read the data and write it back out in some specific structure in binary mode

#3, why? The .obj is very simple, why do you need to convert it to your own binary format, which you then have to also parse and therefore make a complete circle?[/QUOTE]
#1 yeah that was kinda just a example. thats what im currenty using. But i gonna add more so it will work with floats and bigger numbers.

#3 I will use much special stuff in the model files. And im trying to get the files small

[TheBoff]

[QUOTE=nullsquared;20323491]Wherever you need it.[/QUOTE]

So, if I'm using it all over the place, a .h?

[nullsquared]

[QUOTE=TheBoff;20323817]So, if I'm using it all over the place, a .h?[/QUOTE]

Yup. Just make sure you have proper include guards on the header.

[TheBoff]

[QUOTE=Tobba;20323602]#1 yeah that was kinda just a example. thats what im currenty using. But i gonna add more so it will work with floats and bigger numbers.

#3 I will use much special stuff in the model files. And im trying to get the files small[/QUOTE]

Google Protocol Buffers?

[nullsquared]

[QUOTE=TheBoff;20323848]Google Protocol Buffers?[/QUOTE]

Yeah I was about to say that, it really takes the complexity out of the equation.

[TheBoff]

[QUOTE=nullsquared;20323842]Yup. Just make sure you have proper include guards on the header.[/QUOTE]

Tah very much.

I'm being lazy, so #pragma once is everywhere.

[nullsquared]

[QUOTE=TheBoff;20323859]Tah very much.

I'm being lazy, so #pragma once is everywhere.[/QUOTE]

Um sure that works too, I just like to avoid compiler-specific code.

[Lily]

A little noob question:
I have some bytes in the beginning of my file.
But i have to loop througth loads of stuff in the obj file first and write to it.
Is it possible to write to a specified position with ofstream?

[nullsquared]

Yeah, seekp(): [url]http://www.cplusplus.com/reference/iostream/ostream/seekp/[/url]

The problem is that if your file isn't big enough yet, you need to fill it with some data with write().

[Lily]

-snip- didnt read the whole article

[editline]06:14PM[/editline]

Now i wanna see if my comp can handle the like 900000 vertex scorpion model i found on the internet.... lol

[TheBoff]

[QUOTE=nullsquared;20323856]Yeah I was about to say that, it really takes the complexity out of the equation.[/QUOTE]

so x &#8712; [B]R[/B]?

I'm sorry; I couldn't resist!

[Lily]

Bah, fucking hangup's i should probbably reduce the writing to the console

[editline]07:20PM[/editline]

Took out all the unneeded console prints. Works like a charm now.
You might understand why i want my own becuse of this:
.obj file - 41 mb ( only the points as thats only what mine contains right now )
mine - 2 mb