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  • LoadContent
  • Draw

I will discuss those two methods along with some other material in this module. I will defer a detailed discussion of the other three methods until afuture module when I write a program that modifies them.

Will discuss in fragments

A complete listing of the modified definition of the Game1 class is provided in Listing 10 near the end of the module. I will explain selected code fragments in the following paragraphs.

Beginning of the class named Game1

The beginning of the class definition for the class named Game1 is shown in Listing 4 .

Listing 4 . Beginning of the class named Game1.

namespace XNA0118Proj{ public class Game1 : Microsoft.Xna.Framework.Game{

The namespace

This class definition belongs to the XNA0118Proj namespace. This is the name of the folder containing all of the other folders and files inthe project tree as shown in the Solution Explorer in Figure 7 .

General information

The superclass named Game

The new class named Game1 extends the existing class named Game . You will find the documentation for the class named Game here . The description of this class in the documentation is fairly modest. It says simply

"Provides basic graphics device initialization, game logic, and rendering code."

Overridden methods

As I explained earlier, in order to write a program that runs under the XNA framework, you need to override some or all of five methods that are inheritedinto the Game1 class from the Game class. Let's see some of what the documentation for the Game class has to say about these methods.

  • Initialize - Called after the Game and GraphicsDevice are created, but before LoadContent .Override this method to query for any required services, and load any non-graphics resources. Use LoadContent to load graphics resources.
  • LoadContent - Called when graphics resources need to be loaded. Override this method to load any game-specific graphics resources.This method is called by Initialize . Also, it is called any time the game content needs to be reloaded, such as when the DeviceReset event occurs.
  • UnloadContent - Called when graphics resources need to be unloaded. Override this method to unload any game-specific graphicsresources.
  • Update - Called when the game has determined that game logic needs to be processed. This might include the management of the gamestate, the processing of user input, or the updating of simulation data. Override this method with game-specific logic.
  • Draw - Called when the game determines it is time to draw a frame. Override this method with game-specific rendering code.

The game loop

According to the documentation for the Game class,

" Update and Draw are called at different rates depending on whether IsFixedTimeStep is true or false.

If IsFixedTimeStep is false, Update and Draw will be called in a continuous loop.

If IsFixedTimeStep is true, Update will be called at the interval specified in TargetElapsedTime , while Draw will only be called if an Update is not due.

If Draw is not called, IsRunningSlowly will be set to true.

For more information on fixed-step and variable-step game loops, see Application Model Overview ."

Questions & Answers

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
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.
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
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
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
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
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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
good afternoon madam
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
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
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
Prasenjit
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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