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Learn about some of the characteristics of game engines and frameworks in general, and how Slick2D fits those characteristics. Learn how to write a minimal Java application in conjunction with a set of Slick2D jar files to create your own Slick2D game engine.

Table of contents

Preface

This module is one in a collection of modules designed to teach you about the anatomy of a game engine.

Although the modules will concentrate on the Java game library named Slick2D, the concepts involved and the knowledge that you will gain is applicable todifferent game engines written in different programming languages.

The purpose of this module is to teach you about some of the characteristics of game engines in general, and to teach you how Slick2D fits those characteristics.

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 . Steps for writing a Slick2D game program.
  • Figure 2 . Output from Slick2D during program startup.
  • Figure 3 . A default Slick2D game window.
  • Figure 4 . Abstract methods declared in the Game interface.

Listings

  • Listing 1 . Simplest Slick2D program.
  • Listing 2 . The file named CompileAndRun.bat.
  • Listing 3 . Beginning of the class named Slick0110a.

The bottom line at the top

In order to write a game program using the Slick2D game library that will run as a Java application, you must, as a minimum,perform the steps shown in Figure 1 .

Figure 1 . Steps for writing a Slick2D game program.
1. Define a class containing a main method that will run as an application. 2. Define and instantiate an object from a class that implements Slick2D'sGame interface. (Can be combined with item 1 above.)3. Instantiate an object of Slick2D's AppGameContainer class, passing the Game object's reference (from item 2 above) as a parameter to theAppGameContainer constructor.4. Call the start method on the object of type AppGameContainer (from item 3 above).

Preview

The purpose of this module is to teach you about some of the characteristics of game engines in general, and to teach you how Slick2D fits those characteristics.

What you have learned

In the previous module, you learned how to download Slick2D and how to install Slick2D in such a way that you can easily compile and execute Slick2D programs fromthe command line with no need for a high level IDE such as Eclipse or NetBeans.

What you will learn

To begin with, you will learn what we often mean when we speak of a "game engine." You will also learn how that terminology relates to something that we often refer to as a "software framework."

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?
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Carole
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AJ
I am 1 year old but I can do it! 1+1=2 proof very hard for me though.
Atone
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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
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Commplementary angles
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hello
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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, 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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