3d animation and game

Xcode 4.1 and lion

2011-09-01T11:42:00.001+04:30

Xcode 4.1 and lion

In my new series of post I decided to write something about xcode 4.1

and lion os that i use in next post.

Xcode 4.1 can use in snow leopard also but you should download deferent version

For snow leopard .From Xcode 4 you see great change especially in interface of program.

You can add library to program in 4 device orientations (portrait upside-down landscape left and right) without add any more code.

With new interface you can use deferent editor without leave of xcode .New editor help you to have easier programming. You can switch between editors with click on view and editor in toolbar.I don’t want explain more about xcode and lion because you can find them in apple site.

I write this post because if you have problem in xcode and lion discuss it in comment of this posts. In next post you’ll see articles about location based game.

Bye for now and wait for your comments.

about my blog new version and game and application

2011-08-05T11:22:00.000+04:30

hi dear friends

sorry for my late in posting but i working in games coding and like to come to you with

new codes and app and games.

it is my pleasure to see your ideas and project for android and iphon and pc

and help you about it

wait for your comment

my new game will be published

2010-09-01T09:21:00.002+04:30

thanks for your comments ,

as soon as I'll publish my java 3d game

and some discussion about games and developing

send your comment about that what you want from mobile game

and which games you like and are you played games in mobile or no.

wait for your comments

codes for touch in iphone

2010-08-22T11:04:00.000+04:30

Every user should control game easily. Game controlling can be doing with keypress
or touch or device(in iphone and some device).Which one you like?In iphone or even
java you should use events for every user command .In this article we focused on
touch events and codes.

a touch can be occurred in interface that i discussed in previous article. For any touch
and interface you should define function and connection from interface to function.
if you want use button button have many touch event like touch cancel,touch
down,touch up inside and etc.With right click in button in mainwindow you’ll see
events, select one of them and connected it to window select function you create for
button.like this image

For other part of windows you shoul add more code .A code like it can be use
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
}
with this code you can define point for your touch .
CGPoint lastPoint;
and in part of program that you can use it for detect your finger.
CGPoint gamePoint = [touch locationInView:self.view];
you can get coordinates of point.
x=gamePoint.x;y=gamePoint.y
in next post we discussed detailed about game making and also i’ll add more source code.

using interface in opengles(part2: functions)

2010-08-12T15:22:00.001+04:30

In this parti’ll describe how you can run your interface on base of game objects move.

Every code for running your game main windows,should be added in EAGLVIew class.

in opengles is better that you add more windows to games for performing menus and

games and etc but in this project it isn’t necessary .In project that we build before you

know that ES1Rendere and ES2Renderer class have code for render engine in

opengles1 and opengles2 .All new Iphone device support opengles2.

Now we want control speed of colored box (see in previous project).we add two lable

and button to windows like this image

Now we define two function increasespeed and decreasespeed and a lable with name label in EAGLView class.in EAGLView.h inside interface we add UILabel *label ;

then add

- (IBAction)increasespeed:(id)sender;
- (IBAction)decreasespeed:(id)sender;

after interface definition Then linked two button + and – to them..Now we add some code in function .for example for decreasespeed function we add this code(is same for increasespeed )

- (IBAction)decreasespeed:(id)sender {

label.text=@"increase";
    speed+=0.15f;
     [renderer setspeed:(speed)];
     [renderer render];// is necessary for seeing change

}

setspeed is function that should defined in ES1Renderer and ES2Renderer and

ESRenderer.in ES1Renderer and ES2Renderer after interface defination add

-(void)setspeed:(int)Speed; . do it for ESRenderer after @protocol defination.

Now in ES2Renderer.m and ES1Renderer.m add following code

-(void)setspeed:(int)Speed
{
speed=Speed;
}

it is all you need. now see your app!

using interface in opengles (part 1)

2010-08-07T11:40:00.001+04:30

in this tutorial i’ll describe opengles template that using in game developing and add interface to it.You can use text and image and etc without any coding in iphone games.Just for more change in text and images in during game you need coding. first we create new project in Xcode and select opengles template like this image

then select name for project .i select “test” for my project you can select another.

Xcode opened window like this image for you that you see test project and folders of it.

As you see test have 6 folder (classes,shaders,other sources,resources,frameworks and products).In resource you can see MainWindow.xib (is main topic of post).Select window .You can add some text and images and other library .see this image

In opengles codes forced some change in main window after run it.With any code you

can change interfaces also .after run your program you can see this window like it.

i add label(my game 1)to opengles sample project that you see.you can chage font and size of text and others that you want.

Introduction to iphone programming

2010-08-03T09:57:00.003+04:30

Xcode is best tool for Iphone and Ipad and Mac programming.You can used so
many interfaces easily in programming and connect them to source as you
want also with simulator for test your apps.see here for more info.In this picture
you see xcode 3.2.3 ide with iphone sdk 4.0

Every project in Xcode at last have one windows(or view) .In windows we can
add some library like button,label,slide and…For this purpose we should
expand resource folder in left sidebar and open MainWindow.xib or
MainView.xib .Interface builder tool opened and show a blank window.It is
same windows that you see in iphone app. next drag your library from right
side to your windows . If you can’t see library should select tool menu and
then library.

Now build and run your apps .In next post I'll describe opengles tempelete that
is best choose for create 3d games for Iphone .and show how using interface
builders and codes in Xcode.

come back with new article

2010-08-02T10:10:00.001+04:30

sorry for my delay in updating . But i come back with new articles.this article

are about 3d game programming for Iphone.wait for more

image link

blender and python and game

2009-05-11T16:19:00.003+04:30

blenderis a free 3d open source code.in blender you can run a python code and access to object and rotate and scaled and transform
them .you can first make figure in poser and then import it on blender or 3ds max.for import any poser figure it is better to select unimesh demo in python script box and make a sample demo from figure and then import it to 3ds max or blender.then you can create a code like this


# Windows version 
import Blender
import sys

obj=Blender.Object.Get()
print str(obj)
sys.stdout.flush()

and run it on blender.you can custumize code with loop and others and make a game with it

python and animation

2009-04-29T10:53:00.005+04:30

python is great scripting language for animation specially use in blender and poser.
with a python script you can control tools of this software and moving of object in this.when you want to make game with java you can run a script sample in blender or poser for test of your game in real 3d scene and then make a java code for it.you can download python ide from here
this is a picture of python shell ide

and this is a part of code for rendering frame of 1 until 10 and save their images
PoserFile.append("E:\\dawood\\movie\\movie1.pz3")
TargetDirectory.append("E:\\dawood\\movie\\run\\")
FramePrefix.append("Run")
StartFrame.append(0)
EndFrame.append(10)
this codes help you also making animation easier and faster and control animation scenes.

3 steps for making animation

2009-04-26T21:04:00.001+04:30

poser and 3ds max are two good software for making animation and game .Poser is a 3d figuring
software and 3ds max is known 3d design software .in 3ds max you can design your 3d object like
and export it as 3ds file and import it in poser .In poser after import of 3ds max file you can create
figure and move it between frame of 1 and your desired frame.for better learning see here. for using in mobile game you should have a low poly figure and export again object to 3ds file and in 3ds max export all of movie in m3g file or obj file.
it is explained in 3 steps here
1-make object in 3ds max

2-import it on poser

3-render for making animation in poser

3d animation and game

2009-04-23T11:50:00.003+04:30

from today i want change my blog topic from java game programming to 3d animation and game.
because a best way to make games is that make good animation and run it with code in java or other programming language .from today i start my work in this subject .
be wait...

ultimate fight 3d java game

2009-02-25T15:28:00.004+03:30

in this version you can fight as iran,us,german,france,spain,......in place iran us, france,china ....
watch it here

and download it from
http://www.esnips.com/web/ultimatefight

Hosted by eSnips

animation and sound in 3d games

2009-02-24T18:42:00.003+03:30

for this purpose you should use synchronized function for synchronized animation and sound with

your events occurred when key pressing.for Synchronize any functions you should use synchronized word before you functions this function is used for play mp3 sound
public synchronized void playmusic(String file)
{
if(sound==0)
try
{
Player p = Manager.createPlayer(file);
p.setLoopCount(5);
p.start();
}
catch(IOException e)
{
System.out.println("Error in io : " + e.toString());
}
catch(MediaException e)
{
System.out.println("Error in media : " + e.toString());
}
}
you should add this function in function that you want played syncronized .
public void keypress()
{
playmusic(file);
}
for animation you can make any arbitary function like this
syncronized void animation()
{
x++;
group.setTranslation(x,y,z);
}
this function force to moving a group in x axis without stop!
this was a sample way for animation and sound in java 3d game.

download ultimate fight 3d 0.1 (my new game)

2009-02-17T15:19:00.008+03:30

sorry for my late. i worked in my new game.this is ultimate fight 0.1.this game is in testing and contain a one level and two player now but this will be enhanced as soon as.in this video you can see game in snaps.

watch it

and download it from here
download it

sample tips in making mobile game:graphics 1

2008-10-18T16:26:00.004+03:30

tips1:
When you making a mobile games you should know that you can't make full city or even building

and textured them.Because it forced to have bigger 3d models and some mobile device's(or all of

them!).In this case you can textured your desired city or building or...in sample plane or cube

and move camera toward them. in game it seems that you moved in real city or building but you

moved to image .Then you can add your game sample building and humans and creatures to other

side of pictures.like below

this is my video

step2:rotation object in game

2008-09-15T18:41:00.014+04:30

you can rotate your object in 2 way.Which way you select is in base of your games and

algorithms and graphics of your programs.In first way you can set origin in game by

setOrigin function or like it.prerotate and postrotate function invoke this origin on

base of your origin and object default origin and make new origin.( see here for technical

information) This way is used when you want change your rotation origin on base of your game

algorithm and you havn't any fixed origin for your objects .But you can set your orotation origin in3d model maker software's and export it m3g.it is better using mascot capsule because some

exporter maybe can't export your origin and will be using default origin. For this porpose in 3ds

max 2008 for rotate leg on base of its upside

first in command panel we select hierarchy(third box from left)

then select pivot button and click on affect pivot only and then you can see small pivots.it is your

rotate or move or scaling origin you can move it to your desired picture and then click on align to

object only button in below now you can rotate your objects in new origin in model and game.

you should export this model to m3g with tool that i said before or another good tool and use it in game

steps in making real 3d game

2008-09-05T11:36:00.008+04:30

1.moving
moving of objects in 3d game is an important step in games and you should have good control in moving light and cameras .Camera position is on base of your game strategy and your game algorithm.for example in this test game(i'm still beginner) I set camera position with this code.
cam.postRotate(45, 0, 1,1); cam.setTranslation(xpos+40, ypos-50, zpos+60);
and you'll see camera in front of girl and above of her head when she moving near house.
in this video you will see how camera move(xpos,ypos,zpos is girl position in 3d place)

another method for moving is using transformation and transform matrix . a transform matrix is a 4 X 4 matrix and in java code you write it as float array with this code
float[] matrix={1,0,0,sx
,0,1,0,sy
,0,0,1,sz};

Transform m=new Transform();
m.set(matrix);
now for moving camera and human in x axis(1 unit) set sx=1 .If you have mesh with name human and camera you need only to this code for moving them.
camera.setTransform(m);
human.setTransform(m);
With setting sy and sz you can moving in y and z axis

.Matrix transform is very good for rotation and scale also. In next post i show how you can moving human with rotate hand and leg and body.This game also need a sample algorithm for moving girl .

You can download game for playing from this link
download
(sorry for some problem in exit and speed it was my first game)

Advanced programming II: images and text

2008-08-04T17:03:00.007+04:30

Advanced programming II: images and text

Now we want focusing on making better game. For better game we need some text for showing score and some images for maps and other thing and at last a better graphics for getting your game more reality .

In design of 3d models you need getting texture from building and objects that you want to use in game. Some texture maybe force to distortion your model and even maybe you can’t see anything. And of course more high graphics texture and models may not be seen well in some old phone. For example when you download this game for p990 sonny erricson you see a picture like it

But when you want to download it for k750 from same company (sonny ericsson) you will see some graphics problem and maybe even you can’t see some models in older phones.

Add text and images and some functions

You can add text and images to your games with Graphics class and bind Graphics3D to it .You should add text and images to graphics after bind it to Graphics3D . it is an example code

g3d.bindTarget(graphics,true,Graphics3D.ANTIALIAS|

Graphics3D.TRUE_COLOR);

g3d.render(_world);

g3d.releaseTarget();

graphics.setColor(0x990000);

graphics.setFont(Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_LARGE));

graphics.drawString("corner", 90, 150,

Graphics.TOP | Graphics.RIGHT);

In first code we bind target graphics(from Graphics class) to g3d(from Graphics3D) and in second line we render my world class . After release your g3d object you can change your graphics object and add image or add text .For add text I use three line for set color and font and text.

Add images is like that and only you need add function drawimage and image object to your code.This image can be maps or character picture or other thing.You can add some function also to your program for controlling move of cameras or objects in your game.I add a sample code for this porpose.

if(y>-20)

Y=-20;

With this code camera will be stopped if it reached to left wall.In 3ds max wall y position was 20 and

Camera will be moved to Y with this code

camera.setTranslation(X, Y, Z);

You can see more in this project

download project

Using pointer: download A sample pointer enabled killer game

2008-07-24T12:38:00.007+04:30

I add a sample project for more discuss in light and cameras. it is only a camera moving in between walls(textures are from internet).I'll add gun and other effects to it in next time.You can also edit 3d model in way you want. This is my model in 3 direction:top,camera,left and perspective

This model have a camera and 3 light and you should draw your model on base of your camera(upper right picture) and if you want use another cameras also you should configure your model on base of them. In this model camera id is 14 and for loading camera in program this code is enough

Camera camera;

Camera=(Camera)(Myworld.find(14));

Camera position in this model is your person eye.You can move camera in every place with this code

m.setTranslation(x,y,z);

For example you can move it with pointer with this code

protected void pointerPressed(int x, int y) {

m.setTranslation(x,y,z);

}

Pointerpress is a function that invoked when a pointer pressed and x,y is pointer location in screen .You can say that when pointer pressed (x,y) location in screen camera can move.you can add image and text to game for this purpose also. In next post i add text and image to this project for getting better result from this project.

Download project

Advanced programming I: lights and cameras

2008-07-16T14:40:00.004+04:30

1.your 3d model

In every game you should select your lights and cameras carefully and move them on base of your objects moves specially in 3d games.

In this 3d model you see three light( free spot) and one camera and panel and ball(sphere).this is a sample game for moving a ball in panel.For using it you should export in m3g After do that maybe you see a view such this in a m3g player

As you see you may lost some graphics on base of your m3g exporter and your 3d software now you are ready for moving your lights and cameras.

2.moving your lights and cameras

Java have two class for moving light and cameras in m3g files with name Light and Camera.

For moving light and cameras you can use this codes

Light l=(Light)(Myworld.find(lighted);//getting your desired light

l. setTranslation(x,yz);//move it to x,y,z location

Camera m;m=(Camera)(Myworld.find(cameraid);//get your desired camera from your world

m.setTranslation(x,y,z);// move it to x,y ,z location

now you can run your game in netbeans emulator (see picture)but you should now that your game maybe presented in mobiles differently on base of their graphics.

You can send your comments about this post .I'll be glad for them.

Download and develop your 3d java game mobile

2008-07-09T12:07:00.003+04:30

For starting in programming with netbeans first I upload a sample java mobile game project that you can download it and run it or change it and even make a new game.

3d model making

1-for starting programming first you should have 3d model maker .this software should can export models to m3g.I using 3ds max 2008 but you can also use any 3d software like blender and a m3g exporter with it.Blender and m3g exporter are free.Maya is another good software for it but is not free.Every box and sphere you create in this software ,have an id in m3g that give you access to them and You can rotate and move this object .Graphics of this model maybe have some problem in

Some phones on base of their graphics.

Netbeans project information

2. After make your 3d model and export it now you are ready for programming .you should export your 3d model to subfolder "src\res" from your project folder .

My game engine is panel1 class and game canvas is "Canvas" and middle is hellomiddlet. 3ds model is in res folder (game1.max)with m3g file and you can change this model in way you want.your project name in netbeans is your project folder(unzip file after download) and you jar file is in dist folder.You can run it from mobile .In next post I'll explain my project functions and cods and models.

About functions and code

Panel1 class have two functions setmeshpositions and movemesh.setmeshpositions (15,35,35,35) means that your object with id 15 is positioned in 3 dimension space in xyz coordinate(x=35,y=35,z=35) and movemesh(15,"up",5) moving your object with id 15 to up direction in 5 unit.For example in this code

int state = getKeyStates();

if( ( state & DOWN_PRESSED ) != 0 ){

panel.movemesh(15, "up", 5);

state value is 1 when your using a key(in otherwise is 0) or no and DOWN_PRESS value say that you pressed down or

no and if two of them are true mesh move up 5 unit in up direction.you can change this code with replace up with down or like that.in next post I'll write some more about this codes and functions.

Download project now

About middlet and gamecanvas

2008-07-01T16:59:00.002+04:30

Midlet

When you start to programming with java for mobile ,first class you build is midlet .Midlet is an interface between you and mobile. In netbeans you can easily add midlet automatically or with right click in project and in new menu click in visual midlet. In visual midlet you have a form by default and actions belong to it and in graphical interface you can easily add text or other thing to form but if you dont wnat to have form in your program you need only midlet.This class have functions like startApp,destoryApp,startMidlet and like .This function say's what you want to do when midlet started or your program started and etc.In middle you can also switch display of your program between graphics and forms that you make or add your command to your program. It is better that you have this class and game canvas and game engine in different file. It give your program better readability and of course better performance.You can use your game engine in other programs and your game canvas in other midlet and many other features.

Your game engine can also contains more class in base you programs.

__________________________________________________________________________________

Gamecanvas

In mobile programs you have also a gamecanvas (midpcanvas) class.This class contain function for pressing or dragging or clicking keys or pointers and you can add your functions to them.it is an example

protected void keyPressed(int keyCode) {

int action = getGameAction( key );

switch(action)

{

Case DOWN:

MOVEDOWN();

.
}

}

DOWN,UP,RIGHT,LEFT are predefined value's in gamecanvas class and their value is same with returning value from getGameAction(key) when you click down ,up,right and left key in mobile.

A game canvas also has paint function .With paint and repaint function you can draw your graphic world(you'll learn about it in following posts) .You can change your graphics world everywhere and repaint it everywhere also.But you should know more repaint in bad place in class forced to some problem in your game graphics .

With this primary information you are almost ready for start programming .

mobile programming basics

2008-06-27T16:00:00.002+04:30

We have two famous java mobile project platform cdc and midp.Cdc is in base of uiq or nokia symbian or like that and we not focused in it now.Midp when combined whith cldc(is not same whith cdc) provide java standart runtime envirument see here for more info and
cldc defines the base set of application programming interfaces and a virtual machine for resource-constrained devices like mobile phones, pagers, and mainstream personal digital assistants and mainstream personal digital assistants (PDAs).You aren't forced to know this info and only you
need to know is that you should select best platform for you and your ide give you options for this porpose.For example in netbeans ide 6 you select menu file->new project and you see a dialog.In this dialog you select mobility and in project segment if you want programming in midp you can select midp and if you want programming in cdc you can select cdc in this segment.When you select midp you click in next and select your project name.If you want add middlet yourself you should remove tick from create hellomiddlet and now you should select cldc and midp version and device.
It is better that select default device because it is suitable for many device and other device are only availabe in some of device.Now you can start to programming

java mobile game programming

2008-06-20T12:13:00.003+04:30

nowadays mobile game's are popular in world.why?Because mobile user's are increasing and ofcourse their user are different. from child's to young , from businessman's to unemployed people's .But everyone need game and music's for some funs in their tiring times specially young people's. In past time's game are limited in mobiles.Because Mobiles have limited memory and graphics but todays mobile have more memory and graphics and we can make better game .New game have 3d model's and high quality sound's that give user real world .Our focus in this blog is in 3d java game programming in mobile and how do it.I'm waiting for your comment about this blog and which content you need for mobile programming.