JustGooK in coding

About Game Outdoor

2011-07-21T23:04:00.002+03:00

I start to search for some think (models) for outdoor scenes. In my search i found many non-free generators for generate trees, plants, grass etc. Also find lot of freeware models. But in my mind come one mind, how to render so many models in one scene and i found solution - Paged Geometry for Ogre3D i haven't try it for now, but i think i is really what i need.

so its looks like that..

What is PagedGeometry?

The PagedGeometry engine is an add-on to the OGRE Graphics Engine, which provides highly optimized methods for rendering massive amounts of small meshes covering a possibly infinite area. This is especially well suited for dense forests and outdoor scenes, with millions of trees, bushes, grass, rocks, etc., etc.
Paged geometry gives you many advantages over plain entities, the main one being speed: With proper usage of detail levels, outdoor scenes managed by PagedGeometry can be >100x faster than plain entities. Another advantage is that the geometry is paged; in other words, only entities which are immediately needed (to be displayed) are loaded. This allows you to expand the boundaries of your virtual world almost infinitely (only limited by floating point precision), providing the player with a more realistically scaled game area.
(From ogre3d form)
Example from ogre-paged web page:

Expansive jungle scene with 240,000 trees and animated vegetation, running at 100 - 150 FPS on a GeForce 7800 GT:

So solution for big area rendering (in real time) is found!.. so what left - start to do something an compile all founded in one big game..

first steps in game design

2011-06-14T05:30:00.000+03:00

After few weeks at lest i got normal import/export models. From smd (valve studio models) to ogre3d mesh , trough blender. How to do that ill write little bit later, but now i decline to show you my first art (sketch) of game enter screen.

So soon come more, not only arts, sketches but also game screens/game tests

In game ideas (Classes)

2011-05-10T03:47:00.000+03:00

So i can't sleep. so i suggest to write down my ideas. I have thinking about my game classes. Ill creating mmorpg in post apocalypse. So i need create some classes witch will realistic, but like postnuke - so many guns. But how to make guns and melee weapons more or less equal (because i, like many mmo gamers, hate ordinary shooters). I decline to make view form 3rd person, and enable play game with joystick. There no possibility to use cursor to navigate aim (on joystick). So idea is to use selector to select a target (select next target / select before target). So when u select target, hold fire button and dependent on your skill you will shoot to target more or less accuracy (miss -> head-shoot).

So why i start this post - i can't sleep while write down my ideas abut classes.
There is main classes:

Tank (miningunner/flamethrower)
Engineer (man who will use some engineering thinks to attack others)(robots, cars, cannons, mines, choppers...)
Trooper (just ordinary army guy)
Spy/Assassin (use light melee weapons, can hide, become invisible, climb on wall)

So after some time planing to add:

Medic
Sniper (use sniper rifles and hits targets from long distance)
Mystic (man who use telekinesis to attack enemy)

Building Ogre+OgreBullet+Bullet Under Uubuntu

2011-04-14T18:13:00.013+03:00

Every one programmer wanted build his own game. I started too.
For game We need:

Graphic Engine (Ogre3d)
Physic Engine (Bullet)

Glue between Graphic and Physic (OgreBullet).

Im using Linux x86_64 (UBUNTU 10.10) with NVIDIA video card.
First what We need is set up our develepment environment. To do that we need build and install some libraries and header files (these are files that tells our programs how to use thous libraries).

So lets start:

You need ogre it self:

Dowload OGRE 1.7.2 Source for Linux / OSX
Build it (From OgreWiki)

Prerequisites

sudo apt-get install build-essential automake libtool

sudo apt-get install libfreetype6-dev libfreeimage-dev libzzip-dev libxrandr-dev libxaw7-dev freeglut3-dev

Not Strictly Required Dependencies

sudo apt-get install nvidia-cg-toolkit libois-dev libboost-thread-dev

Quick Build

tar xjf ogre_src_v1-7-2.tar.bz2

cd ogre_src_v1-7-2

mkdir build

cd build

cmake ..

make -j2

The -j2 specifies how many parallel compilation jobs to run. Substitute the number of processor cores on your system, e.g. -j2 for a dual-core, -j4 for a quad core...

sudo make install

sudo ldconfig

Next You need Bullet

Dowload bullet-2.77.zip
Compile and install Bullet (From AddonForum)

cmake . -G "Unix Makefiles" -DBUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=RelWithDebugInfo -DBUILD_EXTRAS=ON -DINSTALL_EXTRA_LIBS=ON

make -j2

The -j2 specifies how many parallel compilation jobs to run. Substitute the number of processor cores on your system, e.g. -j2 for a dual-core, -j4 for a quad core...

sudo make install

sudo ldconfig

i need some little tests to test is needed here to copy some libs and make symbolic links for thous.
Here We need some libs from Bullet (Extras/ConvexDecomposition/libConvexDecomposition.so.2.77) copy to /usr/local/lib and make symbolic link to it self, but haven't test it yet.

Last think what We need to build is OgreBullet

Download OgreBullet and extract it
```
tar xjf bullet-2.77.tgz
```
```
cd bullet-2.77
```
Update Collisions/src/Makefile.am in OgreBullet source folder (just add in the end off it )
```
libOgreBulletCol_la_LIBADD = \
 $(OGRE_LIBS) \
 $(bullet_LIBS) \
 -lConvexDecomposition
```
or Use (like i done) this patch and execute in root folder of OgreBullet:
```
patch -p0 < linux_demo.patch
```
Compile and install it:
```
chmod 755 autogen.sh
```
```
./autogen.sh
```
(if you use -DINSTALL_EXTRA_LIBS=ON in bullet configuration)
```
CXXFLAGS=-I/usr/local/include/bullet/ConvexDecomposition ./configure
```
```
make -j2
```
The -j2 specifies how many parallel compilation jobs to run. Substitute the number of processor cores on your system, e.g. -j2 for a dual-core, -j4 for a quad core...
```
sudo make install
```
```
sudo ldconfig
```

So now You have fully build of Ogre+bullet (glued with OgreBullet). Now set Your application (or download test tutorial) configure plugins.cfg (Change PluginFolder to /usr/local/lib/OGRE). And build some tutorial form OgreBullet wiki or forum.

Ill post to some of my tests with OgreBullet after some time.

So that all, fill free to comment.

Add-ons Forum • View topic - Building OgreBullet and Demo on Linux (patches)

2011-04-13T15:25:00.000+03:00

Add-ons Forum • View topic - Building OgreBullet and Demo on Linux (patches)

OgreBullet

2011-04-13T13:28:00.001+03:00

CXXFLAGS="-I/home/gook/Desktop/ogre3d/bullet-2.78/Extras/ConvexDecomposition" LDFLAGS="-L/home/gook/Desktop/ogre3d/bullet-2.78/Extras -Wl,-rpath,/home/gook/Desktop/ogre3d/bullet-2.78/Extras" LIBS="-lconvexdecomposition" ./configure

that is what i done to build OgreBullet. In some soon time ill post something about my experience in Ogre3D and my first game building with it.

Preloaders.net | Free AJAX animated loading gif's | 3 dimensional (3D)

2011-03-24T17:55:00.000+02:00

Nice Ajax preload animation generator!
Preloaders.net | Free AJAX animated loading gif's | 3 dimensional (3D)

Ogre3D in my experience

2011-03-14T17:38:00.000+02:00

ill post here in some later time full my experience how i go trough Ogre3D tutorials. sudo ldconfig (just for don't forgot later)

2011-02-23T14:33:00.002+02:00

I found some good word cleaner Wordoff.com and near it (in comments) found this alternative in php:

function stripAttributes($string)
{
$string=preg_replace(’/()/’, ‘${1}href..;,;..${2}’, $string);
$string=preg_replace(’/()/’, ‘${1}id..;,;..${2}’, $string);
$string=preg_replace(’/()/’, ‘${1}class..;,;..${2}’, $string);
while(preg_match(’/()/’, $string)) $string=preg_replace(’/()/’, ‘${1}${4}’, $string);
$string=str_replace(’..;,;..’, ‘=’, $string);
return $string;
}

in some days ill test it

Light Box

2011-01-13T14:29:00.005+02:00

Long time im searching for some stand alone LIGHTbox - and i found one. just simple as it can be.
http://nofunc.org/Sexy_Box/ it need some corrections - after i do thous ill post my version of it.

MySQL: DELETE across multiple tables using JOIN.

2011-01-04T18:02:00.007+02:00

Ever had a situation where you’ve wanted to say delete rows from lots of tables in your database that can all be associated with some form of join?

Well, after a few minutes of playing around, I’ve found a nice way to do this in just 1 query:

DELETE u, up, upc, ut, utp
FROM users AS u
LEFT JOIN users_photos AS up ON up.user_id = u.id
LEFT JOIN users_photos_comments AS upc ON upc.photo_id = up.id
LEFT JOIN users_topics AS ut ON ut.user_id = u.id
LEFT JOIN users_topic_posts AS utp ON utp.topic_id = ut.id
WHERE u.id = 12

The code is pretty straight forward, and simple to use.

taken from
http://www.haughin.com/2007/11/01/mysql-delete-across-multiple-tables-using-join/

Google Chrome Theme

2010-09-03T18:22:00.001+03:00

One my friend ask me "How to make my own google chrome Theme".
After little research i found this online builder http://www.chrometheme.net/chrome-theme-creator-online.html
When i check it, ill try to explain how to work with it...
PS. it has great manual.
PSS. documentation about Themes is here

Game dev in theory.

2010-09-01T17:54:00.003+03:00

So I have many knowledges in game dev. but it is all in theory. So today is first day when i start collecting and posting all my ideas and resources.

Plan is to build fight game, some action game and at MMORPG.

So ill try to collect all interest arts / guis / models / scrips to build all thous game and write some tutorial/manual/book about my experience.

So feel free to comment, post some resource links and etc.

For easy search I add labels for posts about:
Fight Game - fight_game
Action Game -

Code Hosting

2010-08-24T15:53:00.005+03:00

Today I add some code to Google code hosting and name it justgook-ajax. With this library i work some years and still improving that. I'll test all features of google code hosting and report to my blog. Also i wont to add auto update about all my projects to blog. So code sharing goal is:

info auto update
source auto synchronization with multi PC.
auto update

Also i'm try to test GitHub.com code hosting system.
So lets see what is best solution.

Free hosts

2010-08-24T15:40:00.002+03:00

Lets test some free hosts. and build some php server-side programs for blog.
first what I found was http://www.110MB.com it more that enough for small programs, where u don't need to hold some date on server, but just do some quick data morphings. So I'll test some features an then post my results with full code.

Blogger/blogspot Favorite Ico

2010-08-24T01:29:00.010+03:00

So today i'll try to change my blog favorite icon (it is small picture near web-site location bar "[icon]http://mysite.com")

I find many solutions:

http://www.iconj.com - very nice portal - but i can't make transparent favicom
Use some of my hosts, but it's good only for those who has some host, and if that, than why use blogger.com, better build on your own - so it is bad solution.
base64 - this solution i haven't test yet, but think to build some server side code (on php or Ruby) to decode/encode some pictures, also I don't know how its works with .ico formats. And what the point load many icons for oldIE, animated, static, etc for each cases.
Finely I find some free hosts where i plane to build some extensions for online blog systems, where you will able to create everything what u need for your blog.
- favicon
- anonymous mail-send
- something else - at now I haven't thought what more blogger can need

So about Favico - for now I'll stay with first solution use http://www.iconj.com.

And between to change some favicon for your blog, Add something similar to those lines:

<link href='http://www.iconj.com/favicon.php?user=justgook' rel='shortcut icon' type='image/x-icon'/> 
<link href='http://www.iconj.com/favicon2.php?user=justgook' rel='icon' type='image/gif'/>