The Essential Guide to Physics for Flash Games, Animation, and Simulations

Index

A

Accurate simulations, 461

boundaries, 480

initial conditions, 479

integration scheme, 479

number variables calculations, 478, 479

timestep, 479

ActionScript 3.0, 13

animation, code

built-in frame, clock, 36, 37

getTimer() function, 38–40

object motion precalculation, 40

Timer class, 37, 38

classes

definition, 14

document class, 15

functions, methods and constructors, 16

inheritance, 18

init() function, 14–15

Math.random() function, 17

particle class, 14

properties, 16–17

structure, 15

collision detection

BitmapData objects, 43

distance-based method, 41–42

hitTestObject() method, 41

hitTestPoint() method, 41

events

definition, 27

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