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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

what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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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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