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Learn to use objects of the Slick2D SpriteSheet class and the Animation class to perform more complex spritesheet animation than in the previous module.

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 in this collection will concentrate on the Java game library named Slick2D, theconcepts involved and the knowledge that you will gain is applicable to different game engines written in different programming languages as well.

The purpose of this module is to teach you how to use objects of the SpriteSheet class and the Animation class to perform more complex sprite sheet animations than was the case in the earlier moduletitled Slick0180: Sprite sheet animation, part 1 .

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 imagesand listings while you are reading about them.

Figures

Listings

  • Listing 1 . Beginning of the class named Slick0190.
  • Listing 2 . Beginning of the init method.
  • Listing 3 . Begin populating the Animation object.
  • Listing 4 . Add images from the bottom row of
  • Listing 5 . Finish populating the animation object.
  • Listing 6 . Beginning of the update method.
  • Listing 7 . Compute display locations for first 20 frames.
  • Listing 8 . Don't change position for middle group of sprite images
  • Listing 9 . Run from right to left.
  • Listing 10 . The render method.
  • Listing 11 . Source code for Slick0190.

Preview

I will present and explain a program that uses both rows of sprites from the sprite sheet shown in Figure 1 . The program uses a SpriteSheet object and an Animation object to produce an animation of a dog playing and answering nature's call. (Note that the overall sprite sheet image is quite small, and the image shown in Figure 1 was enlarged for this presentation.)

Figure 1 . The sprite sheet.
Missing image.

Description of the animation

This animation begins with the sprite running from left to right across the game window. Then the sprite stops on the right side of the game window and answers nature's call. Although it isn't shown here, the sprite turns andfaces left during that process. Then the sprite runs from right to left across the game window. This pattern repeats for as long as the program runs, and is illustrated by the three screen shots that follow.

Sprite running to the right

Figure 2 shows the sprite running from left to right. This is a flipped version of one of the images in the top row of Figure 1 .

Figure 2 . Sprite running to the right.
Missing image.

Sprite answering nature's call

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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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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