1. A game by Gravity Pole Productions
Graham Pentheny, Tim Volpe, Ryan LaSante

2. Game Premise “Reverse-platformer” User Generated Content
You make the level, AI does the character control
User Generated Content
“Notebook” feel

3. What Worked: Level Design & File Format Physics AI Making JME 2d
Drawing
Gameplay

4. What was a little skittish:
HUD (120d curse strikes again)
Moral: Tutorials aren’t always right…
Collision Detection (HACK HACK HACK)
User generated Geometry makes this much, much more complicated.
Menus w/ FengGui

5. What Outright Didn’t Work
Level Editor
Try to script new object behavior
Add to FSM
Manual level design works fine.
Text files
____.lvl

6. Making JME to work for us2d
Fix camera movement to x and y axis
Game States
Level Objects
Art
HUD
Don’t use Java2d ;-)

7. Drawing Recognition Get mouse coordinates at specific intervals
Place geometry between points
Get level object
Do recognize
Place object in scene…or not

8. AI, Physics, and Collision Detection
OO-FSM (yay acronyms)
Each has velocity, acceleration
Bounding Boxes (Extrude in Z)
Sends type to FSM which changes char movement
Decoupled from Framerate
<3 2d physics <3
Acceleration, Velocity, Position – Vector2d
this.position.add(this.velocity.mult(deltaTime));
this.velocity.add(this.acceleration.mult(deltaTime));
this.acceleration = this.theAI.currentState.getAcceleration();

9. PLAY THE GAME!!!