1. Tech

2. Game Technical Architecture
Architecture Overview
Game Scene 3D Rendering
Game GUI 2D Rendering
Special Visual Effects
Attributes Based AI System
Challenges

3. Architecture Overview

4. Architecture Overview
3D game development is hard
Higher expectation
More involved dependencies
Design size = N
2D implementation takes N2
3D implementation takes N3

5. Architecture Overview
Project Scale: 5584 lines of programming using C#.Net
Character.cs Lines
Landscape.cs Lines
UIManager.cs Lines
GameModel.cs Lines
BootHillArena.cs Lines
Input.cs Lines
PhysicsHandler.cs Lines
WeaponSlide.cs LInes
Weapon.cs Lines
Bullet.cs Lines
BHAUtilities.cs Lines
Program.cs Lines
Camera.cs (800 Original Code)
Graphics.cs (Oringinal)

6. Game Scene 3D Rendering Multiple layers of game architecture design
Using XNA game design pattern, classes from different layers communicate through consistent function calls
Update() and Draw() (aka Render() )
E.g. Top Layer BootHillArena class manipulates game components of the subsequent layers
Landscape, Camera, UIManager, Input, etc.

7. Game Scene 3D Rendering Landscape Class implements game scene
Uses three phases as game flow control so that to make the game players in different level with different challenge
Free  Draw  Shoot  Free  …
Rounds of game with recovery and supply between duels make the game complete
Player and opponent conditions are manipulated by Landscape too

8. Game GUI 2D Rendering Adhere with usability of UI design principles
Rich Interaction with the environment
Plenty of Game Cue for first time player to get familiar with the game quickly
Screen tips
Models: audience, arena settings
Help menu
Instant Feedback for all actions
Player never feel to be suspended by not knowing what to do in the game

9. Special Visual Effects
Camera Shaking
Depends on the concentration of the player
More focused, less trembling, more accurate
Trying to simulate the trembling from the player, but rather not making the screen jittering
Zooming
Player finds zooming in helps aiming
Slow in – fast out: concentration used up
Physics Engine
Adopted a free physics engine: BulletX
For enhanced immersive game experience

10. Attributes-Based AI System
Goal of BHA AI System
Give player escalated game play experience
Simulates challenge when played with real person
E.g.: If player didn’t draw quickly, your opponent draw
Fine-tuned attributes that makes the duel intense but not rush

11. Attributes-Based AI System
Explicitly displayed attributes fulfilling features in game concept design:
Health, Concentration,
Bullet Left, Ammunition, Health Package,
Affiliation, Rank, Name, etc.

12. Attributes-Based AI System
Behind-the-Scene attributes implemented Goal of AI System:
Character attributes that differ from opponents
Affects drawing and shooting during the duel
accuracy
shooting skill
weapon power
firing speed
reaction
agility

13. Challenges Texture Mapping Collision Detection Physics Effects
Time Constraint

14. Now We Are Going Back

15. Potential Future Expansion
Extended game story to implement
More options
A selection of weapons with upgrade
Choices for player character attributes and opponents attributes
Multiple tasks along with new training process as the learning curve for player as the career path to help the player grow character with increased skills and upgraded gears for an extensive game experience.