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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

what is math number
Tric Reply
x-2y+3z=-3 2x-y+z=7 -x+3y-z=6
Sidiki Reply
Need help solving this problem (2/7)^-2
Simone Reply
x+2y-z=7
Sidiki
what is the coefficient of -4×
Mehri Reply
-1
Shedrak
the operation * is x * y =x + y/ 1+(x × y) show if the operation is commutative if x × y is not equal to -1
Alfred Reply
An investment account was opened with an initial deposit of $9,600 and earns 7.4% interest, compounded continuously. How much will the account be worth after 15 years?
Kala Reply
lim x to infinity e^1-e^-1/log(1+x)
given eccentricity and a point find the equiation
Moses Reply
12, 17, 22.... 25th term
Alexandra Reply
12, 17, 22.... 25th term
Akash
College algebra is really hard?
Shirleen Reply
Absolutely, for me. My problems with math started in First grade...involving a nun Sister Anastasia, bad vision, talking & getting expelled from Catholic school. When it comes to math I just can't focus and all I can hear is our family silverware banging and clanging on the pink Formica table.
Carole
I'm 13 and I understand it great
AJ
I am 1 year old but I can do it! 1+1=2 proof very hard for me though.
Atone
hi
Adu
Not really they are just easy concepts which can be understood if you have great basics. I am 14 I understood them easily.
Vedant
find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
salma
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
If f(x) = x-2 then, f(3) when 5f(x+1) 5((3-2)+1) 5(1+1) 5(2) 10
Augustine
how do they get the third part x = (32)5/4
kinnecy Reply
make 5/4 into a mixed number, make that a decimal, and then multiply 32 by the decimal 5/4 turns out to be
AJ
how
Sheref
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
I rally confuse this number And equations too I need exactly help
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salma
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
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Tamia
hii
Uday
hi
salma
hi
Ayuba
Hello
opoku
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Ali
greetings from Iran
Ali
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Bach
hi
Nharnhar
A soccer field is a rectangle 130 meters wide and 110 meters long. The coach asks players to run from one corner to the other corner diagonally across. What is that distance, to the nearest tenths place.
Kimberly Reply
Jeannette has $5 and $10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t represent the number of tens. Write an expression for the number of fives.
August Reply
What is the expressiin for seven less than four times the number of nickels
Leonardo Reply
How do i figure this problem out.
how do you translate this in Algebraic Expressions
linda Reply
why surface tension is zero at critical temperature
Shanjida
I think if critical temperature denote high temperature then a liquid stats boils that time the water stats to evaporate so some moles of h2o to up and due to high temp the bonding break they have low density so it can be a reason
s.
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
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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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