Bresenham's Line Drawing and Mid-Point Circle in Java Graphics 2D

Hello,

I am posting two of my programs which create a line and circle using the bresenham's line drawing and Mid-Point Circle.
Snapshots:

The code for:
Brezenham's Algorithm in Java Graphics2D: Here
Mid Point Circle Algorithm in Java Graphics2D: Here

Smiley Face Created Using JFrame and JPanel(Java Graphics)

Animation, Visual Effects, Gaming and Comics(AVGC) Sector in India

Online gaming is a rising sector in India. There are more people interested in game development and with increasing quality of engineers passing out each year, it is just a matter of time before India becomes a major powerhouse of gaming and animation. Everyone I meet talks of making android games.

It is said that majority of the work happening in the country is low end. We still lack in quality of gaming professionals.

There are is a lot of talent esp artistic talent. Numbers that I read are like gaming industry was worth more than 1 billion dollars in 2012. Karnataka itself has about 20 animation and gaming training institutes with more than 60 campuses training about 10,000 students at any time. This sector is a ripe area for collaboration between major engineering colleges and such run of the mill Institutes running on rented premises.

There is lot of scope for joint projects/infrastructure sharing and joint diploma courses. Launching high end game titles require years of experience in algorithms, computer graphics as well as art. Software industry is nearing stagnation and revenue growth has slowed. Young software engineers may not be suitable in AVGC Industry as they may not possess requisite skills.

We cannot foresee an electronic arts(EA),Adobe or Pixar kind of company to germinate in India at the moment but there are ominous signs of such a possibility in the future.

Install NetBeans and configure for run Java OpenGL

This is dead easy.

1)Install NetBeans and in it create a project.
2)Download these Jars(assuming you  are using windows).
3) On the library folder right click and click add Jar/folder in the popup menu.
4) Add gluegen-rt.jar and jogl-all.jar files to the library.

There you go you can run jogl programs in this project. Only thing is you need to do this for every project.

Install eclipse and configure it for Java OpenGL

When I was born, I knew nothing - anonymous

JRE library is required to run Eclipse so install JRE latest version.

·         Download a JogAmp library

If you haven't done so already, download and extract the JogAmp library you want to use.

For example, to download and extract JOGL, see the following instructions

1) Go to the site http://jogamp.org/deployment/jogamp-current/archive/jogamp-all-platforms.7z and download should automatically start. The zipped archive is about 54MB. If you are short of data balance, better to get the library (zipped file) from a friend.

2) Unzip the .7z file which is a zipped(compressed) file.

3) Only two jar files are all that is needed from this archive. They are glugen-rt.jar and jogl-all.jar.
4) If you are only working in windows download only these four jar files from my gdrive

·         Eclipse IDE project

Probably the simplest way to use JOGL in an Eclipse project is to create another Eclipse project to contain the JOGL JARs, then make your project depend on this new JOGL project. In the example below, I include only the 64-bit Windows native JARs, but you can put native JARs for as many platforms as you wish together into the JOGL Eclipse project.

1) Create a JOGL project

Put all the JOGL code JARs, native JARs for all platforms you wish to support, and source ZIP files in a directory called "JOGL" in your workspace directory.

Click "File > New > Java Project". Type "JOGL" as the project name and click "Next".

2) Click next and in the next page go to the tab libraries.

Click on add external jars. Then navigate to the folder where you have extracted the zip file in the previous step. In the jogamp-all-platforms folder go to the jar folder and add the jar files glugen-rt.jar and jogl-all.jar.

 3) Expand the jogl-all and gluegen-rt JARs. For each of them, double-click "Source attachment", click "Workspace...", navigate to the corresponding *-java-src.zip file in the project, select it, click "OK", and click "OK" again to dismiss the "Source Attachment Configuration" dialog. The JARs should look like this when you're done:

4) Click the "Order and Export" tab. Check both JOGL JARs, then click "Finish".

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5) Create another java project and add dependency on the JOGL project

    Create another project, give a name and select next.  or if you have an existing project then

    Right-click your project and click "Properties".

    Select the "Java Build Path" on the left, then click the "Projects" tab on the right.

    Click the "Add..." button, check "JOGL", and click "OK".

    Your dependent project should look like this. Click "OK" to dismiss the "Properties" dialog.

That's it! Your project can now use the library.

Tetris Game

Tetris is a very popular game among children. It is considered one of the arcade/classical games. An aspiring game developer is recommended to develop a game of Tetris. It is the "Hello World of the Gaming Industry". Wiki page of Tetris says It is a tile-matching puzzle video game, originally designed and programmed by Russian game designer Alexey Pajitnov.

Readers and players would not need any instructions to start playing this one. The Goal? It is to play as long as possible. The game is time based. We would have played this game in our mobiles/consoles since childhood is'nt it.

Developing this game is not as easy as playing it and will test the intelligence of an average coder.

I encountered some problems in rotating the tetris and stacking the tetrises over one another. I am giving a link to my GDrive the code that implements the game of Tetris that I developed. You are welcome to modify the code and I would recommend you give out this code to others too. In the game I developed some problems are yet to be sorted out.

>>>>>Click Here<<<<< for the Code.

If you want to modify my code then you need to

1) Detect the end of the game.

2) Display points scored and create a two level game.

3) Draw the boxes in a better manner may be with borders for each box and some pattern filled inside them.(OO code esp a class to draw each Tetris may be useful here)

4) Delete a completed row at the bottom and increment the points which it does not do.

5) If down arrow is pressed the Tetris should fall by two or more steps.

As a developer it gives me immense displeasure to display "Game Over" and most of the time based games I develop do not have any end. I just let players start the game and play and whatever happens in the end is the untested and un-anticipated part.

Tetris in Java OpenGL

The tetris C code has now been ported to Java OpenGL. I did the porting in two sittings of two hours each. It involved quite a lot of changes and I emerged victorious. There was one nagging runtime ArrayIndexOutOfBoundsException which caused a lot of testing time to be wasted.

Here is the code.

Snapshot: