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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

A golfer on a fairway is 70 m away from the green, which sits below the level of the fairway by 20 m. If the golfer hits the ball at an angle of 40° with an initial speed of 20 m/s, how close to the green does she come?
Aislinn Reply
cm
tijani
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John Reply
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Siyaka Reply
A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance
Jude Reply
Can you compute that for me. Ty
Jude
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David Reply
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David
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emma Reply
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what is inorganic
emma
Chemistry is a branch of science that deals with the study of matter,it composition,it structure and the changes it undergoes
Adjei
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Adjanou
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Pedro
A ball is thrown straight up.it passes a 2.0m high window 7.50 m off the ground on it path up and takes 1.30 s to go past the window.what was the ball initial velocity
Krampah Reply
2. A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (0.20) at constant velocity by a force directed 25° above the horizontal. Calculate (a) the work of the applied force, (b) the work of friction, and (c) the total work.
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you have been hired as an espert witness in a court case involving an automobile accident. the accident involved car A of mass 1500kg which crashed into stationary car B of mass 1100kg. the driver of car A applied his brakes 15 m before he skidded and crashed into car B. after the collision, car A s
Samuel Reply
can someone explain to me, an ignorant high school student, why the trend of the graph doesn't follow the fact that the higher frequency a sound wave is, the more power it is, hence, making me think the phons output would follow this general trend?
Joseph Reply
Nevermind i just realied that the graph is the phons output for a person with normal hearing and not just the phons output of the sound waves power, I should read the entire thing next time
Joseph
Follow up question, does anyone know where I can find a graph that accuretly depicts the actual relative "power" output of sound over its frequency instead of just humans hearing
Joseph
"Generation of electrical energy from sound energy | IEEE Conference Publication | IEEE Xplore" ***ieeexplore.ieee.org/document/7150687?reload=true
Ryan
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Maurice Reply
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Maurice
answer
Magreth
progressive wave
Magreth
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Mohammed
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Mujahid
A string is 3.00 m long with a mass of 5.00 g. The string is held taut with a tension of 500.00 N applied to the string. A pulse is sent down the string. How long does it take the pulse to travel the 3.00 m of the string?
yasuo 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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