Tong Quan Ve XNA

7/29/2019 Tong Quan Ve XNA

1/18

TNG QUAN V XNA

Bo co vin: Lng Th Thu H

I HC CNG NGH THNG TIN V TRUYN THNGB MN TRUYN THNG A PHNG TIN


2/18

Gii thiu XNA

Cu trc ca mt Project game XNA Xy dng game 2D trong XNA:

o Input: Image texture, Audio

o iu khin chut v bn phm

Ni dung chnh


3/18

XNA l g?

XNA l mt b cng c s dng cho mitrng c thi gian chy game qun lc pht trin bi Tp on Microsoft.

B cng c XNA bao gm:

o XNA Framework

o XNA Build

o XNA Game Studio


4/18

XNA Game Studio Express

XNA GSE l mt t hp cc th vin h tr chovic pht trin game 2D v 3D trn my tnh

S dng ngn ng chnh pht trin l C#

Tch hp vi mi trng Visual Studio theo tngphin bn

Games c th chy trn mi trng Windowhoc Xbox

C kh nng pht trin game chuyn nghip vib toolkit ny


5/18

Cu trc XNA Game Studio Express

Windows APIs, DirectX

Common Language Runtime (CLR)

XNA Framework

Game code (C#) & content

You provide Provided for you


6/18

c tnh ca XNA

H tr ha 2D & 3D Truy cp n th vin HLSL (High level shader

language) Pixel and vertex shaders

H tr v m thanh Cng c h tr m thanh XACT

u vo t bn phm hoc tay iu khin

H tr cc font ch

H tr mng


7/18

Ci t XNA Game Studio Express

Ci t Visual StudioVisual Studio l mt mi trng tch hp

(editor/debugger/compiler)

Nu khng s dng b Visual Studio, chngta cn Visual C# 2008 Express

Ci t XNA Game Studio 3.0

Download XNA Game Studio 3.0 ti linkhttp://www.microsoft.com/en-

us/download/details.aspx?id=15300
http://www.microsoft.com/en-us/download/details.aspx?id=15300http://www.microsoft.com/en-us/download/details.aspx?id=15300http://www.microsoft.com/en-us/download/details.aspx?id=15300http://www.microsoft.com/en-us/download/details.aspx?id=15300http://www.microsoft.com/en-us/download/details.aspx?id=15300


8/18

Khi to Project game XNA


9/18

Cu trc ca Project game XNA Hm to Game1.cs

public Game1()

{

graphics = new GraphicsDeviceManager(this);

Content.RootDirectory = "Content";

}


10/18

Cu trc ca Project game XNA

Phng thc lm nhim v khi toprotected override void Initialize()

{

base.Initialize();}

Phng thc load ni dung cho game

protected override void LoadContent()

{

spriteBatch = new SpriteBatch(GraphicsDevice);

}


11/18

Cu trc ca Project game XNA Phng thc Updateprotected override void Update(GameTime gameTime)

{

base.Update(gameTime);}

Phng thc Draw

protected override void Draw(GameTime gameTime){

GraphicsDevice.Clear(Color.CornflowerBlue);

base.Draw(gameTime);

}


12/18

Mt s API h tr trong hnh hc

Vector2 + - * /

Normalize, Length, LengthSquared

System.Math Hm Math.ATan2(x,y) tnh ton gc

Hm Cos v Sin tnh gc trv mt Vector2

MathHelper

L mt phin bn ca XNA System.Math

Hng s: PI, TwoPi, PiOverFour, E, Log10E

Phng thc: DegreesToRadians, Clamp, CatMullRom, Lerp


13/18

V m hnh 2D vi SpriteBatch

Begin

Starts a batch

Draw

Paints a Texture2D to the screen

DrawString

Paints a SpriteFont + a string to the screen

End

Commit the batch


14/18

iu khin bn phmbanPhim = Keyboard.GetState();

if (banPhim.IsKeyDown(Keys.Up))

toaDoPhiThuyen.Y -= tocDo;

if (banPhim.IsKeyDown(Keys.Down))

toaDoPhiThuyen.Y += tocDo;

if (banPhim.IsKeyDown(Keys.Left))

toaDoPhiThuyen.X -= tocDo;

if (banPhim.IsKeyDown(Keys.Right))

toaDoPhiThuyen.X += tocDo;


15/18

iu khin chuttoaDoPhiThuyen.X = Mouse.GetState().X;

toaDoPhiThuyen.Y = Mouse.GetState().Y;

if ( (banPhim.IsKeyDown(Keys.Space)) ||(Mouse.GetState().LeftButton == ButtonState.Pressed ))

{

timeDelay += gameTime.ElapsedGameTime.Milliseconds;

if (timeDelay > 100)

{

timeDelay = 0;

BanDan(gameTime);

}


16/18

Initialize LoadContent Game LoopUnloadContent

(Theoretically)

Chy mt game XNA

DrawUpdate


17/18


18/18

Questions

& Comments

Documents

Tong Quan Ve XNA