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Listings

  • Listing 1 . Beginning of the class named Game1.
  • Listing 2 . The constructor for the Game1 class.
  • Listing 3 . The overridden LoadContent method.
  • Listing 4 . Beginning of the Update method.
  • Listing 5 . Compute the location of the sprite to draw.
  • Listing 6 . Adjust column and row counters.
  • Listing 7 . Execute the pause sequence if it is time for it.
  • Listing 8 . Adjust sprite position and frame rate.
  • Listing 9 . Move the sprite image back and forth across the game window.
  • Listing 10 . Beginning of the overridden Draw method.
  • Listing 11 . Begin the drawing process.
  • Listing 12 . Call the SpriteBatch.Draw method.
  • Listing 13 . The end of the program.
  • Listing 14 . Class Game1 from the project named XNA0122Proj.

General background information

Frame animation typically involves displaying a series of images one at a time in quick succession where each image is similar to but different from theone before it. For example, Figure 1 shows a series of images of a small dog running, jumping, stopping to answer nature's call, and then scratching theground as dogs are prone to do.

Figure 1 . Sprite sheet used to animate a dog.

missing image

Credit for sprite artwork

I have no recollection of when and where I acquired this sprite sheet. If you are the artist that drew these sprites, please contact me andidentify the original source and I will gladly give you credit for the artwork.

A sprite sheet

The format that you see in Figure 1 is a small scale version of a format that is commonly known as a sprite sheet. If you Google "animation sprite sheet", youwill find hundreds and possibly thousands of examples of animation sprite sheets on the web.

Hundreds of sprite images

Many of the sprite sheets that you will find on the web will contain hundreds of individual images usually arranged is several groups. One group may haveseveral images that can be animated to create the illusion of a character running. Another group may have several images that can be animated to createthe illusion of the character engaging in a martial arts battle. Other groups can be animated to create the illusion of other activities.

There are two groups of sprite images in Figure 1 . The images in the top row can be animated to show the dog running, jumping, playing and generally havingfun.

The images in the bottom row can be animated to show the dog answering nature's call.

Frame animation

By displaying the individual images from a group sequentially with an appropriate time delay between images, you can create the illusion that thecharacter is engaging in some particular activity. When displayed in this manner, each image is often referred to as a frame. The overall process is oftenreferred to as frame animation.

Downloading the sprite sheet

If you would like to replicate my program using the same sprite sheet, you should be able to right-click on Figure 1 and save the image on your disk. Be sure to save it as an image file of type JPEG.

Preview

I will explain a program in this module that causes the dog to run back and forth across a small game window always facing in the correct direction asshown in Figure 2 . Figure 2 through Figure 5 show four random screen shots taken while the program was running.

Questions & Answers

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 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
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Xna game studio. OpenStax CNX. Feb 28, 2014 Download for free at https://legacy.cnx.org/content/col11634/1.6
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