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Learn how to update the game-math library to provide new capabilities including the addition of graphics and set methods for column matrices, points, vectors, and lines. Also study sample programs that illustrate the use of the new capabilities and learn how to draw on off-screen images.

Table of contents

Preface

This module is one in a collection of modules designed for teaching GAME2302 Mathematical Applications for Game Development at Austin Community College in Austin, TX.

What you have learned

In the previous module, I presented and explained two sample programs and a sample game-programming math library named GM2D01 , which were intended to implement concepts fromKjell's tutorial in Java code.

The library named GM2D01 is purely mathematical. By that, I mean that the library doesn't provide any mechanism for rendering objects of the ColMatrix , Line , Point , or Vector classes in a visual graphics context. That capability will be added to the version that I will present in this module.

What you will learn

In this module, you will learn how to update the math library to provide a number of new capabilities including the addition of graphics and various set methods. You will also learn that the addition of set methods exposes certain vulnerabilities, and you will learn how to protectagainst those vulnerabilities. Finally, you will learn how to draw on off-screen images.

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 . Screen output from both sample programs.
  • Figure 2 . Graphic output from Exercise 1.
  • Figure 3 . Graphic output from Exercise 2.
  • Figure 4 . Graphic output from Exercise 3.
  • Figure 5 . Text output from Exercise 3.
  • Figure 6 . Graphic output from Exercise 4.
  • Figure 7 . Graphic output from Exercise 5.
  • Figure 8 . Graphic output from Exercise 6.
  • Figure 9 . Graphic output from Exercise 7.

Listings

  • Listing 1 . Beginning of the class named PointLine03 and the class named GUI.
  • Listing 2 . Beginning of the constructor for the GUI class.
  • Listing 3 . Create two off-screen images.
  • Listing 4 . Remaining code in the constructor.
  • Listing 5 . Beginning of the drawOffscreen method.
  • Listing 6 . Define four lines that will be used to draw borders.
  • Listing 7 . Draw a visual manifestation of each line.
  • Listing 8 . The draw method of the GM2D02.Line class.
  • Listing 9 . Draw a visual manifestation of a GM2D02.Point object.
  • Listing 10 . The draw method of the GM2D02.Point class.
  • Listing 11 . Draw the vertices of a hexagon.
  • Listing 12 . Draw six lines connecting the vertices of the hexagon.
  • Listing 13 . Instantiate three objects of type GM2D02.Vector.
  • Listing 14 . Call the draw method to draw the vector.
  • Listing 15 . The draw method of the GM2D02.Vector class.
  • Listing 16 . Three visual manifestations of the same vector.
  • Listing 17 . Draw the blue vector.
  • Listing 18 . The MyCanvas class and the overridden paint method.
  • Listing 19 . The setData method of the ColMatrix class.
  • Listing 20 . Updated constructor for the Point class in GM2D02.
  • Listing 21 . The drawOffscreen method of the program named PointLine04.
  • Listing 22 . Instantiate a point at the upper-left corner.
  • Listing 23 . Instantiate a moveable Point object.
  • Listing 24 . Instantiate a moveable Line object.
  • Listing 25 . Relocate the Line to three more locations.
  • Listing 26 . Source code for the game-math library class named GM2D02.
  • Listing 27 . Source code for the program named PointLine03.
  • Listing 28 . Source code for the program named PointLine04.
  • Listing 29 . Code for generating random values in Java.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
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
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
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
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Game 2302 - mathematical applications for game development. OpenStax CNX. Jan 09, 2016 Download for free at https://legacy.cnx.org/content/col11450/1.33
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