One thousand visitors, SDL_net and new features freeze.

Hello,

   Last Sunday my blog hit the 1000 visitors barrier, it's not a big number at all, but if I think in the small amount of people that dared to look at the the blog at the early beginning I can think on it like a personal success.

    It's not a gossip blog, not a dowload-movies blog or anything like that, in fact is a very specialized tech blog that has grown post by post, last three months have been good, only in those months I got more visitors than in all the previous 12 months, I have realized that the first objective I wanted to achieve is not going to be possible, I have learned many things in last year: SDL, C++ and to play a little bit with Gimp, and that took many time...


    I'm just about to finish the player creation progress, so I should be about to finish the first part of the project, I feel now more self-confident with my skills so many new ideas and features have grown in my mind to add to the rpg-thing game concept, the problem is that every new idea takes time to develop...


   So finally I have decided to stop adding new things, I'm going to just finish the rpg-demo and start with SDL_net, I have to test many things so I'm going to need pre-pre-alpha testers , if anyone dares I'm going to stay here, open-arms ...

See you soon

Code::Blocks(16) RPG 4 - Game Menus

The game has two different menus, the start menu and in-game menu, the differences are the available options and what will happen when we choose them as seen here:

Start Menu:

• NEW > Goto player creation
• LOAD > Goto load game, Start game (Disabled)
• EXIT > Quit game

Game Menu:

• CONTINUE > Return to game
• SAVE > Goto Save Game, Return Game (Disabled)
• EXIT > Quit Game

For the menus I have created two images more:

Ball selector:

Menu Item:

I have used Gimp again to draw them, to draw the ball i just made a new, square shaped image, filled it with color FF,00FF (Pink) so i can apply later the colorkey, then i selected a circle and used the blend tool with orange and yellow colors.

Drawing the button was quite easy: Gimp > File > Create > Button > Simple beveled button, the only thing I made was to left the text empty so I can use the same button for all the menu items.

The logic for the menu is simple:

• Define an "Option" variable, it will be which menu option is chosen.
• Check the keyboard, and if we have pressed the following keys:

1. Key up > decrease option 
2. Key down > increase option
3. Enter > execute action associated to the button (Change game state)

Now draw the menu:

1. Fill with a color (grey)
2. Draw menu tittle
3. Draw menu buttons
4. Draw the text into the menu buttons
5. Draw the ball selector

Repeat until we press the enter key

<"Game.cpp", Code for MenuStart:>

void Game::MenuStart()    //Start menu
{
//MenuTittle ="START MENU";

SDL_Surface* Button; //The menu buttons
SDL_Surface* Ball; //The ball selector
Button = IMG_Load("images/button.png");
Ball = IMG_Load("images/ball.png");

//The ball uses colorkey to display correctly
SDL_SetColorKey(Ball,SDL_SRCCOLORKEY |SDL_RLEACCEL,SDL_MapRGB(Ball-> format, 255, 0, 255));


SDL_Rect ButtonPosition ,BallPosition;
int i; //An iterator for the loop
int Option=1;//To select items

//startx, starty Used to display images
int startx = ((myengine.ScreenX / 2) - (Button->w/2) );
int starty = (myengine.ScreenY / 2) ;


bool done = false;
    while (!done) // will loop infinite times until we set done = true
    {
 SDL_Event event;
        while (SDL_PollEvent(&event))//Check new events
        {
            // check for messages
            switch (event.type)
            {
                       // exit if the window is closed
            case SDL_QUIT:
                done = true;
                break;

                // check for keypresses
            case SDL_KEYDOWN:


        // Down key
        if (event.key.keysym.sym == SDLK_DOWN)
        {
           Option++; //Move down ball selector
            if(Option>3)Option=1;
            break;
        }


       //Up key
       if (event.key.keysym.sym == SDLK_UP)
       {
             Option--;//Move up ball selector
            if(Option<1)Option=3;
            break;
       }

       //Return pressed
         if (event.key.keysym.sym == SDLK_RETURN)
       {
           switch (Option)
           {
               case 1://NEW
               myGameState=CREATEPLAYER;
               break;

               case 2://LOAD
               myGameState=LOAD;
               break;

               case 3://EXIT
               myGameState=OUTRO;
               break;

           }//switch option
           done = true;
           break;
       }//if

       //Exit game
       if (event.key.keysym.sym == SDLK_ESCAPE)
       {
           done = true;
           break;
       }
            }//switch
        }//while

myengine.FillColour(100,100,100);//Fill with grey

myengine.SetTextColor( 0, 0, 255 );//Blue color
myengine.TextOut(startx -50 ,100,"START MENU",3);//Menu tittle

for (i=1;i<4;i++) // draw 3 buttons
{
ButtonPosition.x = startx; // X
ButtonPosition.y = starty + (i*40); // Y
ButtonPosition.w = Button->w;
ButtonPosition.h = Button->h;

SDL_BlitSurface(Button, NULL, myengine.screen, &ButtonPosition);//Draw button
}//for

BallPosition.x=startx -Ball->w;
BallPosition.y=starty + (Option*40);
BallPosition.w=Ball->w;
BallPosition.h=Ball->h;

SDL_BlitSurface(Ball, NULL, myengine.screen, &BallPosition);//Draw ball selector

//Draw text for the options
myengine.TextOut(startx + 10,starty + 50,"NEW",1);
myengine.TextOut(startx + 10,starty + 90,"LOAD",1);
myengine.TextOut(startx + 10,starty + 130,"EXIT",1);
myengine.Flip();

myengine.Wait(1);
  }//End while done loop

//Free surfaces Before finishing
SDL_FreeSurface(Button);
SDL_FreeSurface(Ball);
}

<"Game.cpp", Code for MenuGame:>

void Game::MenuGame()    //In-Game menu
{

SDL_Surface* Button; //The menu buttons
SDL_Surface* Ball; //The ball selector
Button = IMG_Load("images/button.png");
Ball = IMG_Load("images/ball.png");

//The ball uses colorkey to display correctly
SDL_SetColorKey(Ball,SDL_SRCCOLORKEY |SDL_RLEACCEL,SDL_MapRGB(Ball-> format, 255, 0, 255));


SDL_Rect ButtonPosition ,BallPosition;
int i; //An iterator for the loop
int Option=1;//To select items

//startx, starty Used to display images
int startx = ((myengine.ScreenX / 2) - (Button->w/2) );
int starty = (myengine.ScreenY / 2) ;


bool done = false;
    while (!done) // will loop infinite times until we set done = true
    {
 SDL_Event event;
        while (SDL_PollEvent(&event))//Check new events
        {
            // check for messages
            switch (event.type)
            {
                       // exit if the window is closed
            case SDL_QUIT:
                done = true;
                break;

                // check for keypresses
            case SDL_KEYDOWN:


        // Down key
        if (event.key.keysym.sym == SDLK_DOWN)
        {
           Option++; //Move down ball selector
            if(Option>3)Option=1;
            break;
        }


       //Up key
       if (event.key.keysym.sym == SDLK_UP)
       {
             Option--;//Move up ball selector
            if(Option<1)Option=3;
            break;
       }

       //Return pressed
         if (event.key.keysym.sym == SDLK_RETURN)
       {
           switch (Option)
           {
               case 1://CONTINUE

myGameState=MAINLOOP;
               break;

               case 2://SAVE
               myGameState=SAVE;
               break;

               case 3://EXIT
               myGameState=OUTRO;
               break;

           }//switch option
           done = true;
           break;
       }//if

       //Exit game
       if (event.key.keysym.sym == SDLK_ESCAPE)
       {
           done = true;
           break;
       }
            }//switch
        }//while

myengine.FillColour(100,100,100);//Fill with grey

myengine.SetTextColor( 0, 0, 255 );//Blue color
myengine.TextOut(startx -50 ,100,"GAME MENU",3);//Menu tittle

for (i=1;i<4;i++) // draw 3 buttons
{
ButtonPosition.x = startx; // X
ButtonPosition.y = starty + (i*40); // Y
ButtonPosition.w = Button->w;
ButtonPosition.h = Button->h;

SDL_BlitSurface(Button, NULL, myengine.screen, &ButtonPosition);//Draw button
}//for

BallPosition.x=startx -Ball->w;
BallPosition.y=starty + (Option*40);
BallPosition.w=Ball->w;
BallPosition.h=Ball->h;

SDL_BlitSurface(Ball, NULL, myengine.screen, &BallPosition);//Draw ball selector

//Draw text for the options
myengine.TextOut(startx + 10,starty + 50,"CONTINUE",1);
myengine.TextOut(startx + 10,starty + 90,"SAVE",1);
myengine.TextOut(startx + 10,starty + 130,"EXIT",1);
myengine.Flip();

myengine.Wait(1);
  }//End while done loop

//Free surfaces Before finishing
SDL_FreeSurface(Button);
SDL_FreeSurface(Ball);
}

<Now the game is starting to have what we would expect to find in a game, intros, menus.. in the next post the main game loop> 

Code::Blocks(15) RPG 4 - An intro screen

<I will show how I did two things: the intro / splash screen and the outro, before starting I have to say that an intro screen is very important because it is like a business card: The sign from your game, obviously I'm not going to expend a week to make a 3D- synthesized intro but I will include it into the game so anybody can make their own, feel free to play with it>

<My intro probably is the easier one you can do, I just made an Image with the gimp "File" > "Create" > "Logo" > then I chosen a marble texture, replaced the text and voilá!:>

<Intro image, saved as "tittle.png">

<Then what I did was to make the background to fade in from black to white while I was showing the tittle image, to do so I just made a for loop with an integer variable "i" and filled the background with that value from {0,0,0} to {255,255,255}, finally I added a small delay (10ms) every frame to make it a little slower>

<"SplashScreen" method:>

void Game::SplashScreen() //Splash /Intro Screen
{

SDL_Surface* Tittle; //A surface to load intro image
Tittle = IMG_Load("images/tittle.png");
int i;
for (i=0;i<255;i++)
{
myengine.FillColour(i,i,i); //Will fill the background from color {0,0,0} (black) to {255.255.255} (white)
SDL_Rect end; //To set the intro image position
end.x = (myengine.ScreenX / 2) - (Tittle->w/2); // X
end.y = (myengine.ScreenY / 2) - (Tittle->h/2); // Y
end.w = Tittle->w;
end.h = Tittle->h;

SDL_BlitSurface(Tittle, NULL, myengine.screen, &end);//Blit the intro image

myengine.Flip();
SDL_Delay(10); // slow down the process so we will actually se something on screen

}//For

SDL_FreeSurface(Tittle);//Clean memory

myGameState = MENUSTART; //Go to start menu
}

<for the outro I just swapped the colour order from (0 to 255) in the intro to (255 to 0)  in the outro so it faded from white to black>

<"OutroScreen" method:>

void Game::OutroScreen()//Splash Screen
{

SDL_Surface* Tittle; //A surface to load outro image
Tittle = IMG_Load("images/tittle.png");
int i;
for (i=255;i>1;i--)//Will fill the background from color {255.255.255} (white) to {0,0,0} (black)
{
myengine.FillColour(i,i,i);
SDL_Rect end;
end.x = (myengine.ScreenX / 2) - (Tittle->w/2); // X
end.y = (myengine.ScreenY / 2) - (Tittle->h/2); // Y
end.w = Tittle->w;
end.h = Tittle->h;

SDL_BlitSurface(Tittle, NULL, myengine.screen, &end);
myengine.Flip();
SDL_Delay(10);// slow down the process so we will actually se something on screen

}//For

SDL_FreeSurface(Tittle);//Clean memory

myGameState = END; // It does not needs an explanation, right?
}

<In the next post: Game menus..>

Code::Blocks(14) RPG 4 - More classes , Game states and a few tweaks more

<In this post I'm going to create the basic structure of the game, until now I had almost all the code included in the "rpg.cpp" file, but it was starting to get too big. I knew i needed to do a few things:>

1. Clean up code, separate it into smaller parts.
2. Create a Game State structure
3. Use the new tileset!(see picture above)
4. Create a folder to store images, move all references to the images to the new folder.

<Before starting with the updates to the code I'm going to explain what the game states are and what i expect to do with them>

<The best way to understand it is to look at this diagram:>

 <We have many "Screens" that represent different game states, in every game state the game acts in a different way (different input, output and logic), what we need is to have a way to store where the game is, so we can launch the code that will handle that particular state>

<At the moment that's the project structure:>

<To create the game states and to divide the code into smaller parts, we are going to change the project structure to:>

<Now the "main" function include all the code,  how i made the changes? First I created a file "gamestates.h" that is basically an enum to know in what state the game is:>

<File "gamestates.h">

enum GameState { //Enumerates the game states
    INTRO = 1,
    MENUSTART = 2,
    LOAD = 3,
    CREATEPLAYER = 4,
    MAINLOOP = 5,
    MENUGAME = 6,
    SAVE = 7,
    OUTRO = 8 ,
    END = 99};

<File rpg.cpp has been totally rewritten:>

#include  //SDL library
#include  //+SDL_image library (I use it for loading .png files)

#include "game.h" //Core game class

int main ( int argc, char** argv ) //when you use a SDL c++ app you have to initialize main that way
{

Game mygame; //Create an Instance of Game, Loads default values

mygame.myGameState = INTRO; //We start with the intro screen

bool done = false;
while (!done) //Loop infinite times until done
{

switch (mygame.myGameState)
{
case INTRO: //Intro screen
{
    mygame.SplashScreen(); //Shows an intro Splash Screen
    break;
}

case MENUSTART: //The first menu (new game, load...)
{
    mygame.MenuStart();
    break;
}

case CREATEPLAYER: //Player creation process
{
    mygame.CreatePlayer(); //Player Creation Process
    break;
}

case MAINLOOP: //Game main loop
{
    mygame.MainLoop();//The main game loop
    break;
}

case MENUGAME: //In game menu (save game...)
{
    mygame.MenuGame();
    break;
}

case OUTRO: //Outro screen
{
    mygame.OutroScreen();//The main game loop
    break;
}

case SAVE: //Save game
{
    mygame.SaveGame();
    break;
}

case LOAD: //Load Game
{
    mygame.LoadGame();
    break;
}

case END: //End game
{
    done = true;
    break; //exit switch , end game
}

} //switch
} //while

return 0; //Everything is ok

}//End main

<Now it just contains a game class instance and a simple switch to select the game state and execute the right code (clean and neat), the game class is declared here:>

<File "game.h":>

#ifndef GAME_H
#define GAME_H

#include  //SDL library
#include  //+SDL_image library (I use it for loading .png files)

#include "engine.h" // The simple engine class
#include "cplayer.h" //The player class
#include "cmap.h" // The Map class
#include "gamestates.h" //The Game states Enum
#include 

#include  // I use it to work with text streams

using namespace std;

//Class Game, i have moved everything
class Game
{
    public:



GameState myGameState ; //used to know what we should do at any moment
Engine myengine; //Create a object from the type "Engine"
std::stringstream text; //Variable used to display text
Uint8 x,y; //variables used to travel across the map array
cmap mymap; // Our map class
cplayer Hero; //Our player class
//cmenu mymenu; //Our Menu Class
Uint8 *keys;
SDL_Rect Camera;

 char* MenuTittle; //The menu tittle
 vector MenuItems; //The menu items

        Game();
        virtual ~Game();
        void SplashScreen();
        void OutroScreen();
        void MenuStart();
        void MenuGame();
        void CreatePlayer();
        void MainLoop();
        void SaveGame();
        void LoadGame();

    protected:
    private:
};

#endif // GAME_H

<Notice I moved all the variables as properties into the new class, and functions now are methods, notice too we have achieved two objectives: clean the code and split it into smaller parts, it is easier to understand and implement too, next objective is to code game.cpp >

The first function, the class initializer is this:
file "game.cpp"

Game::Game()//Initialize Game class instance
{
myengine.SetVga(800,600,32,true); //Start graphics mode
myengine.LoadTileset("images/tileset3.png"); //Load the image tileset to a SDLSurface


//Set starting position and speed for the player
Hero.SetX(110);
Hero.SetY(310);
Hero.SetSpeed(10);

//Set default values for the players
Hero.SetName("Conan");
Hero.Defaults();
Hero.CalculateVitMag();
Hero.MaximumAttributes();

//Ser camera starting offset
Camera.x=1;
Camera.y=1;
Camera.w = myengine.ScreenX;
Camera.h = myengine.ScreenY;
}

In the next posts I will show all the other methods.

Creating an RPG player

<We've got a player and we can move the player around a tile-map but we need the most important thing in a RPG game,  the player creation process>

<There are hundreds of methods to create RPGames , but i have chosen to use a percentile method because it's quite easy to implement and it fullfills all my game needs>

These are the rules for my game:

SKILLS:

• In this method the skills are a value from 0 % to 100 % (can get higher, but that would take ages for the player to achieve and it does not give an actual advantage) that represents the chance to successfully use a skill.
• Every skill is linked to an attribute.  
• Skills grow when you use them or when using skill points.
• When a skill reaches 70%(Expert) and 90%(Master) the player earns two skill point.
• Skill points are special, player start with skill points and get new ones when using skills.
• Skill points can be used to increase a skill (Every point expend increases a skill 10% up to 50% maximum) or to learn a new skill to a 25% level (To do so player needs to find an NPC with the desired skill with a level of 90% or higher, and usually pay a fee that will depend on the skill).
• A skill can have from zero to two parent skills, those are skills player MUST already know before learning the skill, most of the skills will finish forming a kind of skill tree, but a few ones are free to anybody.
• When there is a skill check there are 4 possible results (As an example I will use a warrior with melee at 70% attacking an Orc):

1. Skill has failed: When player rolls a skill and gets a value higher than it's skill (example: 83 > higher than 70%) this means player has failed to hit the Orc.
2. Critical failure: When player rolls a skill and gets a value from 96 to 100 , that will happen even if the player has a skill level higher than 95 (for example 135%), so there is always a small (5%) possibility to fail a skill, there are not guaranteed skills in the game except event-driven ones (special events)
3. Skill has worked: When a player rolls a skill and gets a value equal or lower than his/her skill (warrior rolls 43, lower than 70% > Orc has been hit)
4. Critical success: When a player rolls a skill and gets a value equal or lower than his/her skill divided by 10 (in the example, the warrior has 70% melee, divided by 10 > 7% critical chance so if it rolls 1-7 the Orc is going to get a critical hit...) , when a critical success, the effect of the skill is doubled , for a melee skill for example, double damage .

• Every skill has an upgrade level, the upgrade level is an integer value starting at 0 that grows by one very time a player successfully uses a skill.
• When the upgrade level gets higher than the current skill level, the skill level increases by one, and the upgrade level goes again to 0, in the example the warrior has a melee skill at 70% with an upgrade level 70, the warrior uses the melee skill again an rolls 35 (success) so upgrade level goes to 71, it is greater than melee skill so melee skill goes to 71% and upgrade level to 0.

ATTRIBUTES:

• The attributes of the player come in a value from 5 to 15 (To prevent too high/ too low values).
• All attributes start at 10, that is the "medium" attribute value, if you've got an higher or lower value, the chances to use skills based in that attribute will be greater/lower.
• The player can remove points from one attribute to increase another, but it will never be higher than 15 or lower than 5.
• When finishing the player creation process, every attribute is doubled and stored, that is the maximum value a player can get an attribute ever, so it is very important to choose how to distribute the attribute points at the start of the game thinking of what kind of player you want to be.
• All players have these attributes:

1. Strength:The brute force, increases the damage made using melee weapons.
2. Dexterity:It is both the agility and how fast the player is.
3. Endurance:The endurance, pain and venom resistance
4. Size:Physical size, modifies life points and armour prices
5. Intellect:Mind power, basically modifies all mind related skills starting from literacy (write/read) to magic skills
6. Power:The player's soul strength, it increases resistance to special magic attacks (disintegrate like spells) and versus negative plane creatures (such as undeads (zombies, ghosts), daemons , daemonic weapons (items)), it modifies to the amount of followers a player can have (NOTE: Followers are bound undeads / daemons / beasts)

• There are some special stats that depend on the attributes:

1. Life / Vitality points: It is based in Size*2 + Endurance
2. Magic points:It is based in Power*2 + Intellect
3. Carry capacity: It is based in strength + size

GENDER:

In the game gender affects attributes:

• Male players: Strength +1
• Female players: Dexterity +1

<Before anybody complains about it, the gender rule is set to make the game more fun, not to discriminate anybody in anyway so it has nothing to do with sex rights, it is just a game!>

 RACES:

Players can choose to play with the following races:

• Humans: Good in almost everything, they have no special modifiers <Humans were the stronger civilization in my game, they became so powerful that they tough were gods, opened doors to distant planes, made dark pacts with even darker gods but finally the doors were left open, when the negative plane creatures started to get into the world it was too late to try to close it..., nowadays humans just fight to survive>
• Midgets: Small sized humans, they are quite small and notably faster too (Size -2, Dexterity +2), <some people say they are the thieves nation, but nobody ever has proven it>
• Mountain humans: Rude, strong but not very intelligent (Strength +2 , Intellect -2) <It is said that when the first humans had their first encounter with the Mountain giants the natural selection started to play again, after centuries they have become a stronger race>
• Forest nation:  Fast, very intelligent humans, but very weak (Dexterity +1, Intellect +2, Strength -3) <Nobody knows when those humans started to live in the deepest, forgotten forests, but everybody knows what they do: Look for arcane knowledge and dark secrets...>
• Half giants: Pure muscle, very big, slow and definitively dumb (Strength + 3, size +3, dexterity -3, intellect -3)<somebody will tell they are Huge Mountain Humans, others will tell they are small giants, either way they are the most unbalanced race to play>.

<Note about the races: Notice that if you add all the modifiers from a race, it will always become 0, even Half giants!, it is the only way to try to balance it, another important thing is that after modifying the attributes, the gender and race selection, the maximum and minimum attributes you can get is 19 and 2, attributes very high can make a warrior / wizard very strong (only in the super-attributes based skills), but they will have a few attributes so low that it will be almost impossible later in the game to use anything else, humans are not the stronger, faster or more intelligent , but they can use both swords and books >

<In the next post, i will iexplain the player creation process in the game>

An Ubuntu Server (1/X)

<Open case view>

<I have been playing around with the tiles and the maps for a while, it was good but if i have to finish the project in time , it's the right moment to make my own server to test SDL_Net >


<First i needed to set up a server, probably you will think i was going to use a dual xeon computer with terabytes of hard disk .... from my experience with the servers and the power needed to run the app i don't need so much hard, in fact i have decided to run it in a quite old computer, that's the server configuration:>

• Intel 3.06Ghz CPU
• 1GB RAM
• 2x9GB SCSI HDDs
• 100 MBs LAN

<The most important thing in a server is data redundancy , if the server power supply fails, you will have a server down, but you can bring it to live just replacing it, But what will happen if the hard disk crashes?, just guess.... so i decided to set up a software RAID 1 device with two SCSI hard disks, the processor and RAM are weak for a desktop gamer, but i think they are going to handle the expected amount of users, at least in the beginning>

<Dual SCSI disks>

<Now into the software, the final server configuration is going to use the Ubuntu Server edition but at the moment i need to debug and compile the project in the server, so I'm going to use the Ubuntu 10.10 Alternate edition instead of the server one>

<You may ask "Why to use the 10.10 version when there is a new version (11.04)?" , it is indeed a good question, and the quick answer is "Unity"... for all the people that have worked with Ubuntu from a few years ago , you are used to the Gnome desktop manager, so you were not forced (in the past) to use a (quite) bloated desktop manager like KDE, I'm not telling you to don't use KDE, it's good of course, but for me it smells too much like MS products...., but now Gnome has decided that to use the desktop manager you are going to need a powerful opengl card (maybe it's ok for a modern desktop computer), but it's not so ok for a server computer.., Unity tries to solve this problem, but if you have ever used the "Ubuntu Netbook Remix" you will know it's NOT a mature product, you have the feeling that is sort of mac OS/X clone, can't set up the desktop and bars the same way than in standard Gnome and finally i'm pretty sure it is much more slower than the (old) Ubuntu 10.10>

<For me it's quite clear which o.s. to use, just go and get Ubuntu Alternate 10.10 and burn the cd to start installing it>

In the next Post, installing wit Ubuntu Alternate, software RAIDs and more....

FREE RPG - Tileset

<Updated 25/October, please read the bottom>
<Updated 25/July, added stairs, and cleaned a pair of things>

Hello, finally I'm back again!!, and that's what I've been working on:

RPG Tileset v1.0

License: GPL (Read below about nethack tileset licensing)

<Now I've got something to start working , it has taken me many , many time and i didn't had a big amount lately so what I've done to try to speed up the process was to start looking first at other's work...>

 <I watched many tilesets, found a few real impressives like the ones at lost Garden  but unfortunately they didn't were what i really need, then i started to search into the free to play rogue-like games, there are so many out there!, finally i saw the Nethack 32 graphical tileset>

<Now it is when i ran into problems , the tiles were 32x32 pixels, and i'm using 100x100 pixels tiles, so i have to adjust every tile i imported from the nethack into mine's, other problems is that the nethack tiles had a "brick"background so i had to clean it pixel a pixel, so i could paint them using the transparent pink color to overlap images (SDL_ColorKey).>

<I used the nethack tileset to import all the characters from the game, the players, the foes and the beasts too, and most of the items too, but i tried to draw the other things: i made the terrain and a few effects , there is still many work to do, but i really needed something to start working, promise I'll improve it!>

<VERY IMPORT: Tileset LICENSING:>

<Another important thing is i MUST give thanks to all the people that made posible to bring the nethack game to live and were so kind to share it to anyone (Please read the license), basically what it means is "You are permitted to modify NetHack, or otherwise use parts of NetHack, provided that you comply with the conditions specified above; in particular, your modified NetHack or program containing parts of NetHack must remain freely available as provided in this License Agreement. In other words, go ahead and share NetHack, but don't try to stop anyone else from sharing it farther. ", so thanks all the people again, remember that if you use the tileset for anything it MUST REMAIN under GPL, free to anyone..., that kind of things is what makes open source strong and made linux and so many programs to be available to the people....>

<now i think it is time to stop chatting and start to explain my fight against the gimp and how i actually made the tileset:>

I came from MS Windows , and my very first paint program was MS Paint, oh yes, the wonderful image editor!, since Windows 3.1 i have used it... ¿Time to upgrade right?

I started installing the Gimp , i wanted to work with the gpl tools so from all the software i chosen it, it's a powerful but not so easy to start learning, anyway there are hundreds of tutorials to learn using it, just google for "gimp-tutorial" and you will see, in Ubuntu i just went to software center and searched for it.

After installing the Gimp i created a new image, I made it 1000x1000 pixels in size, then i went to "Image" > "Configure grid" and i made a grid size of 100x100pixels (the size of an individual tile):

Now i selected "View" > "Show Grid" and "View" > "Snap to grid"

Then i filled everything with the transparent color (pink= FF00FF), notice we have the tileset ready to work, we just need to know how to organize the tiles:

• I used the first two rows for terrain tiles
• 3rd is used for a few terrain objects and magical effects
• 4th is used for the players
• 5th and 6th is used for misc. objects
• 7th and 8th are monsters, and finally 
• 9th and 10th are used for the gui icons

There are still many missing tiles, for example I need stairs, a portal and many other things, so probably i will enlarge the tileset

To draw the terrain tiles i just selected the tile and filled it with a texture, then i selected "Filters" > "Map" > "Make seamless" so they will fit correctly with each other.

I imported the nethack tiles selecting them with the "Rectangle select tool" one a time, then copied it and pasted it into my tileset, then i needed to "Tools" > "Transform tools" > "Scale" to the size 100x100 pixels (32x32 pixels in Nethack), finally with the "Pencil tool" i cleaned all the background to the color "FF00FF" (pink).

So basically that's how i filled 80% of the tileset, i drawed a few things, like GUI icons but explaining how i made them falls out of this tutorial....

I would really appreciate any comments about this tileset (what will you add/remove / upgrade) I really hope this helps other people than me..., I hope too to post more advances in the rpg game too soon.


A final Note: Many people has come here (in fact 100+ persons), for example you!, watched the tileset or downloaded it, but nobody has made any comment about it, it is a shame because if YOU don't say a word..

• I don't know if people like it or find it useful.
• I don't know if there are things that people would like to change /add / erase.
• I'm not a magician , can't read minds, please help me to improve things.

Thanks!
JB