MMORPG Networked Game

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Group: RO3

MMORPGNetworked GameMMORPGNetworked Game

Advised by Prof. David Rossiter

Date: 29 April 2006

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OutlineOutline• Introduction• Objectives• Tools Used• Software Development• Challenges• Future Development• Demonstration• Questions and Answers Session

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IntroductionIntroduction• What is MMOPRG?

– Massive Multi-player Online Role-Play Game

• Single-player game no longer satisfies players’ needs.

• MMORPG becomes more popular.

Game Clients

Internet

Dedicated Game Server

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Objectives of our projectObjectives of our project

• An interactive environment is provided for different ages and genders

• Good Appearance of the game can give an enjoyable environment.

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Tools UsedTools Used

A. API (Application Programming Interface)

i. OGRE (Object-Oriented Graphics Rendering Engine)

ii. CEGUI (Crazy Eddie's GUI System)

iii. RakNet (Networking API)

iv. FMOD (Audio Effects System)

v. TinyXML (Parsing XML)

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Tools Used (Cont’d)Tools Used (Cont’d)

B. Software

i. Microsoft Visual Studio .NET 2003

ii. AutoDesk 3D Studio Max

iii. Adobe PhotoShop

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Software DevelopmentSoftware Development1. Design

– Subsystems Management1. Networking2. 3D Rendering3. Graphical User Interface4. Input5. Sound6. Data7. GameObjects – Character Actions8. Logger9. Event Handler – Local player game logic handlin

g

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Software DevelopmentSoftware Development– System Architecture

To Server

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Software Development (cont’d)


To Client

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2. Implementation– Networks

1. Scope Data Structure

RegionCentre (Player’s Position)

Map

Neighboring Position

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– Graphical User Interface (GUI)

Status Bar

Item List

Equipment

System Menu Bar

Target Info

Player Details

Spell List

Chat TextBoxHotKey Menu

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– 3D Graphics1. 3D modeling (landscape)

Texture

Heightmap

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– 3D Graphics2. 3D modeling (Monster - Zombie)

Exporter

(in .mesh file)

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– 3D Graphics3. Animations (Player)

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– 3D Graphics4. Collision Detection

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– 3D Graphics5. Particle System and Billboards

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– 3D Graphics6. Particle System with 3D models

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– Sound• Background Music

(loading, login screen and in-game environment)• Sound Effects

(attack, cast spells and be injured)

– 3D Sound Feature• Fading out with Distance

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– Game Functions1. Movement2. Attacking Monsters3. Casting Spells4. Using Items5. Equipment6. Chatting7. Buying Item8. Creating Team9. Quest10. Die and Reborn

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– Game Logics• Monster Active Attacking

Not in Detection Range!!

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3. Testing & Evaluation

– The performance tests have been performed on different laptops and PCs with different display resolutions.

– Synchronization has been tested among clients.

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• Performance Issue– Using shaded texture

• To reduce the number of polygons used in the 3D model

– Preventing from bulky packets• Monster-Response Packets are sent in the

time-slot groups• The processing time can be evenly

distributed

ChallengesChallenges

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Future DevelopmentFuture Development

• Load Balancing with parallel servers

• Automatic path

selection

• Multiple Scenes (Indoor, day and night)

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DemonstrationDemonstration

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Questions & Answers SessionQuestions & Answers Session

Documents

MMORPG Networked Game