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You should have no difficulty matching up the code in Listing 5 with the verbal description given above.

Make a cleanup pass

The code in Listing 6 uses an Iterator to make the cleanup pass described above.

Listing 6 . Make a cleanup pass.
//Make a cleanup pass through the ArrayList object Iterator<Sprite01>iterB = sprites.iterator();while(iterB.hasNext()){ Sprite01 theSprite = iterB.next();//Cause a percentage of the exposed objects to// contract the disease. Clear the others. if((theSprite.getExposed() == true)&&(random.nextFloat()<probabilityOfInfection)){ theSprite.setImage(redBallImage);theSprite.setLife((int)( random.nextFloat()*infectedSpriteLife));theSprite.setExposed(false); }else{//Eliminate the effects of the exposure theSprite.setExposed(false);}//end else//Remove dead sprites if(theSprite.getLife()<= 0){ iterB.remove();}//end if }//end while loop}//end outer for loop}//end update

Once again, you should have no difficulty matching up the code in Listing 6 with the verbal description given above.

The render method

The render method is shown in Listing 7 . There is nothing new in Listing 7 .

Listing 7 . The render method.
public void render(GameContainer gc, Graphics g) throws SlickException{//set the drawing mode to honor transparent pixels g.setDrawMode(g.MODE_NORMAL);//Draw the background to erase the previous picture. background.draw(0,0);//Draw every sprite in the ArrayList object. for(int cnt = 0;cnt<sprites.size();cnt++){ sprites.get(cnt).draw();}//end for loop//Display the number of sprites remaining. g.drawString("Sprites remaining: " + (sprites.size()),100f,10f); }//end render}//end class Slick0220

Run the program

I encourage you to copy the code from Listing 8 and Listing 9 . Compile the code and execute it,making changes, and observing the results of your changes. Make certain that you can explain why your changes behave as they do.

Summary

In this module, you learned how to write a program that simulates the spread of a fatal communicable disease within a population.

Conclusion

Although I may come back and add more modules later, for now, this will be the final module in this collection.

The objective of the collection was to explain the anatomy of a game engine. I believe I have accomplished that objective and have also providedsample programs to illustrate the use of the game engine.

It is worth pointing out that BasicGame is not the only game engine architecture available with Slick2D. The Slick2D Wiki refers to BasicGame as a game container and indicates that several others are available including:

  • Applet Game Container
  • ApplicationGDXContainer/AndroidGDXContainer

The documentation also describes a class named StateBasedGame , which provides a different anatomy than BasicGame . Bucky Roberts provides a series of video tutorials on state based games using Slick2D at (External Link)

Miscellaneous

This section contains a variety of miscellaneous information.

Questions & Answers

how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
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what's the easiest and fastest way to the synthesize AgNP?
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Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
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AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
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name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
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Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
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how did you get the value of 2000N.What calculations are needed to arrive at it
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Source:  OpenStax, Anatomy of a game engine. OpenStax CNX. Feb 07, 2013 Download for free at https://legacy.cnx.org/content/col11489/1.13
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