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Preface

This module is one in a collection of modules designed primarily for teaching GAME 1343 Game and Simulation Programming I at Austin Community College in Austin, TX. These modules are intended tosupplement and not to replace the textbook.

The modules were originally published for use with XNA 3.1 and have been upgraded for XNA 4.0. This upgrade had very little impact on earlier modules inthis collection. However, beginning with this module, we begin to see major differences between version 3.1 and version 4.0 ofXNA. In May of 2016, the modules are being updated for use with version 4.0 Refresh . This will have very little impact on the modules. Here is what Microsoft has to say about the newer product:

Microsoft XNA Game Studio 4.0 Refresh updates XNA Game Studio 4.0 to fix bugs and add support for developing games that target WindowsPhone OS 7.1 and developing games in Visual Basic.

This course doesn't address Visual Basic or Windows Phone, but bug fixes are always welcome.

An earlier module titled Getting Started provided information on how to get started programming with Microsoft's XNA Game Studio.

Moving from C# to XNA

All of the modules prior to this one have been preparing you for this module. This is the module where we will begin applying what you have learned about C#and OOP to the XNA framework.

My objective

My objective is that you fully understand what you are doing when you write C# programs using the XNA framework. I don't want you to simply be filling inthe blanks and hacking something together in hopes that you can find a combination of statements that seems to work. If we can accomplish that, you will be prepared to go much further into the sophisticated use of the XNAframework on your own after you complete the course.

Fasten your seatbelt

This module may be a rough ride from a technical viewpoint, so fasten your seatbelt, arm yourself with a pot of coffee, and let's go.

Viewing tip

I recommend that you open another copy of this module in a separate browser window and use the following links to easily find and view the Figuresand Listings while you are reading about them.

Figures

  • Figure 1 . Initial game window.
  • Figure 2 . Raw image with an (almost) transparent background.
  • Figure 3 . Cropped upper-left corner of the game window
  • Figure 4 . Cropped upper-left corner of the game window without honoring alpha transparency.
  • Figure 5 . Select New Project on the Visual C# File menu.
  • Figure 6 . Select a Windows Game project.
  • Figure 7 . Solutions explorer and properties window exposed.
  • Figure 8 . The Load method of the ContentManager class.

Listings

  • Listing 1 . Initial contents of the file named Program.cs for a Console Application.
  • Listing 2 . The file named Program.cs for a Windows Game project.
  • Listing 3 . Initial contents of the file named Game1.cs.
  • Listing 4 . Beginning of the class named Game1.
  • Listing 5 . Constructor for the Game1 class.
  • Listing 6 . The overridden LoadContent method.
  • Listing 7 . Beginning of the Game.Draw method.
  • Listing 8 . Draw the sprite.
  • Listing 9 . Call Game.Draw on the superclass.
  • Listing 10 . The Game1 class for the project named XNA0118Proj.

Questions & Answers

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
Abhi
how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
Abhi
is it a question of log
Abhi
🤔.
Abhi
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris 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
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
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
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
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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