Index_I

I

ICollidable interface

properties and methods defined, 9

IComparable interface

CompareTo method, 218

used in Gamelights class, 218

ICullable interface, 8

identity matrix, 99

IDisposable interface

Dispose method, 31

Model class, inheriting from, 171

ParticleGenerator, class inheriting from, 154

Thinker class, inheriting from, 265

IDynamic interface

Model class, inheriting from, 171

ParticleGenerator class, inheriting from, 154

supporting movement of objects, 85

Update method, 9, 85, 171, 188

If/Else statements

using to create appearance of intelligence, 234

Ignition property, CarDynamics class, 333

IgnitionState enumeration, 329, 332

Image class

constructor, 38

inheriting IDisposable, 38

Load method, 38

members , 38

ImageButton class, 42

constructor, 44

methods

ClickTest method, 47, 51

Dispose method, 44

GetDestRect method, 46

GetSrcRect method, 46

GetTexture method, 46

Hit Test methods, 47

HoverTest method, 51

Render method, 44

properties

Position property, 46

Size property, 46

states, 43

images

as surface or texture, 38

creating height maps, 389

creating textures, 389

editing, 388

index buffers, locking, 169

IndexOfKey method, Thinker class, 263

inelastic collisions, 362

inference engines

classes used to implement, 237

knowledge-and logic-based approach, 235

maintaining a state, 240

XML file format for data, 237

Initialize method, GameEngine class, 71

InitializeLights method, GameLights class, 224

InLineOfSight method

ITerrainInfo interface, 9

Terrain class, 135

input interface, unifying, 34

InputObject class

creating keyboard and mouse devices, 33

InRect method

BillBoard class, 151

determines if object is in rectangle, 182

Model class, 182

Object3D class, 182

ParticleGenerator class, 165

TerrainQuad class, 128

IntegratePosition method, CarDynamics class, 340, 352

interfaces

multiple inheritance and C#, 7

IRenderable interface example, 8

Intersect method, Mesh class, 169

inverse_mass attribute, CarDynamics class, 340

InvSourceAlpha state, RenderState class, 149

IRenderable interface

multiple inheritance and C# example, 8

Render method, 8

IsAlive property, Thread class, 265

IsBackground property, Thread class, 262

IsCulled property, ICullable interface, 8

IsTireLoose method, CarDynamics class, 356

IsTireSquealing method, CarDynamics class, 356

IsTrue property, Fact class, 238

IsVisible property, Console class, 66

ITerrainlnfo interface, 9, 10, 129