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Complete listings of the Sprite class and the Game1 class are provided in Listing 13 and Listing 14 near the end of the module.

Before getting into the game program, however, I will explain a very short program that illustrates how to draw on-screen text. I personally found the documentation on this topic to be somewhat confusing.

How to draw on-screen text

The difficulty that I encountered in drawing on-screen text was not in the writing of program code. Rather, it was in getting ready to write program code.

Font availability

Before getting into the details, I want to mention that fonts are typically copyrighted items of intellectual property and you must be careful whendistributing fonts for which you don't have distribution rights. To assist you in this regard, the information shown in Figure 2 currently appears in the documentation .

Figure 2 . Information on fonts from the XNA documentation.

The following list of fonts are installed by XNA Game Studio and are redistributable:
  • Kooten.ttf
  • Linds.ttf
  • Miramo.ttf
  • Bold Miramob.ttf
  • Peric.ttf
  • Pericl.ttf
  • Pesca.ttf
  • Pescab.ttf

These OpenType fonts, created by Ascender Corporation and licensed by Microsoft, are free foryou to use in your XNA Game Studio game. You may redistribute these fonts in their original format aspart of your game. These fonts were previously available only on the XNA Creators Club Onlinewebsite.

Identifying the font families

You should be able to select Fonts in the Windows Control Panel and see a list of the font families that are installed on your machine. The problem is that the names of the font families are not an exactmatch for the file names listed in Figure 2 .

Matching font families to font files

Figure 3 shows my best guess as to the correspondence between font-family names and the file names listed in Figure 2 . Font family names are on the left and font file names are on the right.

Figure 3 . Correspondence between font-family names and font file names.

  • Kootenay - Kooten.ttf
  • Lindsey - Linds.ttf
  • Miramonte - Miramo.ttf
  • Miramonte Bold - Bold Miramob.ttf
  • Pericles - Peric.ttf
  • Pericles Light - Pericl.ttf
  • Pescadero - Pesca.ttf
  • Pescadero Bold -Pescab.ttf

You will learn shortly why we care about the font-family names.

Getting ready to draw on-screen text

Before you can draw on-screen text you must add a Sprite Font to your project from the IDE during the design process.

Here is my interpretation of the steps required to add the Sprite Font to your project:

  • Open your project in Visual C#.
  • Right-click your Content folder in Solution Explorer , select Add , and then click New Item .
  • From the Add New Item dialog box, click Sprite Font .
  • Change the text in the Name field to [Font-Family Name].spritefont , such as Lindsey.spritefont for example.
  • Click the Add button. This will create a new XML file named [Font-Family Name].spritefont , which will be opened in the IDE editor.
  • Click the file named [ Font-Family Name].spritefont in the Solution Explorer and note the Asset Name that is displayed in the Properties window (such as Lindsey for example).
  • The XML file contains an element named FontName . Change the contents of that element, if necessary, to match the name of the fontfamily that you specified.
  • Change the contents of the Size element in the XML file to the point size you desire for your font.
  • Change the contents of the Style element in the XML file to the style of font to import. You can specify Regular , Bold , Italic , or Bold, Italic . Note that the contents of the XML elements are case sensitive.
  • Specify the character regions to import for this font. Character regions specify which characters in the font are rendered by the SpriteFont . You can specify the start and end of the region by using the charactersthemselves, or by using their decimal values with an ampersand-pound sign prefix. The default character region includes all the characters between the space and tildecharacters, inclusive.
  • Follow the instructions in the comments in the XML file to make any other changes to the contents of the XML elements that are appropriate foryour program.

Questions & Answers

Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
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Yasmin
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Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
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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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