FSOSS 2010/processing.js/

Welcome to the Game Development Using Processing.js Workshop

Intro (me)

• Seneca college BSD student
• Research assistant in CDOT
• Related projects: C3DL and XB PointStream
• Wordpress, Twitter

Goals

• Develop a simple 2D or 3D game using in Processing

Processing (aka P5) Processing.org

• Open source data visualization language
• Developed in Java
• "Sketches" written using Java syntax
• Requires a JVM plug-in
• Uses the <object> tag
• Reference
• Bug tracking

Setting up Processing

• Download it here
• Save the .DMG file to the Desktop
• Double-click to extract file
• Drag the Processing icon to the desktop
• Double-click the icon to start

Processing.js (aka PJS) ProcessingJS.org

• Open source JavaScript port of Processing
• Started by John Resig
• Many contributions by Seneca
• Bug Tracking
• Does not require a plug-in
• Uses the <canvas> tag

Lots of IDEs
Processing.js IDE
HasCanvas
SketchPad
Sketch.Processing.org
My IDE

Setting up Minefield

• Minefield is much faster than Firefox
• Download a working version of Minefield here
• Instructions to enabled WebGL here

Setting up Processing.js

• 3 Files Required
• Processing.js file
• Sketch file
• HTML file

Coordinate system

• size() sets canvas dimensions
• top-left corner [0, 0]
• X increases right
• Y increases downwards

Basics

1 - size, background, rect Example

2 - setup Example

3 - draw, noStroke, ellipse, fill, mousePressed Example

4 - line, stroke, strokeWeight Example

5 - ArrayList Example

Input

6 - mousePressed, mouseReleased, println, debugging with P5 Example

X  - keyPressed, keyCode, keyReleased Example

Text & Random

X - text, random Example

X - Exercise

Animation Timing

Timing Example

Vectors & Transfomations

X - Vectors

X - Particle System Example

X - Exercise! Modify the Particle System

7 - transforms, triangle, rect, (point)

3D

X - box Example

X - sphere, sphereDetail Example

X - Vertex, Texture Example

Debugging

println Example

Checking in P5

Error console

DOM Manipulation/Library Integration

DOM Interaction Example

Integration with jQueryUI - Example

Audio Example, Audio Data API Demos

Physics using Box2DJS - Al MacDonald's Demo, 0.1 PJS Crayon Physics

More demos! My PJS Web IDE (Visualizations, Spatial hierarchies, Image manipulation, Particle Systems!)

Games

3D Pong by bmidgley
Tower Defense by Will Larson and Peter Burns
Core by Andor Salga
Light Cycles by Al MacDonald
Game of Life by Al MacDonald
JS Ninja by Al MacDonald
Zelda by Scott Downe

Challenges

Create an empty sketch and try to code a simple game:
Pong!
Concentration
Flying side-scroller
Sokoban