3D Game Programming

purple fruit monster,

245–249

river rafting, 265–272

rotating avatar, 226–229

solar-system project,

241–243

tilt-a-board game, 249–

253

collisions

cave-puzzle game, 169–

170 , 182

detecting and avoiding,

93–98, 230–234

goal in tilt-a-board game,

154

multiple in purple fruit

monster game, 136–

138

river-rafting game, 204

color

ambient, 113 , 118

backgrounds, 166

changing, 109–113

emissive attribute, 112

goal lights, 154–155

hexadecimal numbers,

166

list, 43 , 110

RGB numbers, 110 , 112

solar-system project, 118

specular attribute, 112

trees, 43

color attribute, 113

commenting out, 135

comments

double-slash notation, 69

using, 69 , 135

while statements, 120

compile-time errors

defined, 20

functions, 55

computeFaceNormals(), 193

computeVertexNormals(), 193

cones, creating, 10

console.log(), 160–161

constructors

object, 162–164

ramps, 171–174

control keywords, 74–76

controls, see keyboard con-

trols; mouse

coordinates, converting, 205

copying

objects, 161

in programming, 27

projects, 35

this, 180

corners, pulling, 192

cosine

curve, 102

JavaScript function, 71–

72

solar-system animation,

119

countdown timers, see al-

so timers

multilevel games, 181

scoreboard, 100 , 174 ,

181 , 276

covers, see materials

crescent moon, 131

cubes, creating, 6–8

curly braces

function notation, 54–55

JavaScript objects, 160

cylinders, creating, 9–11

D

debugging

in ICE Code Editor, 19 ,

86

in JavaScript console,

19–23

decimal points, 204

defining errors, 22

degrees, see radians

describing, in JavaScript, 67 ,

160

Despicable Me, 137

digRiver(), 191

direction

avatar, 79–84, 226–229

collision avoidance, 97

directional lights, 187

dirty, defined, 149

__dirtyPosition, 149 , 172

__dirtyRotation, 152 , 172 , 198

discs, creating, 9

distance points, 200

<div> and web hosting, 213

division, 70

documentation, JavaScript,

273–278

domElement property, 88

DOMContentLoaded, 212

Don’t Repeat Yourself (DRY)

principle, 51

donuts

creating, 12–14

raft from, 195

shadow example, 113

shininess example, 111–

113

spinning, 115

double-slashe notation, 69

draggable ramps, 171–174

DRY principle, 51

E

?e option for ICE Code Editor,

23 , 120

Earth

phases-of-the-moon

project, 127

solar-system project,

119–123

eat(), debugging example, 20

edit-only mode for ICE Code

Editor, 23 , 120

?edit-only option for ICE Code

Editor, 23 , 120

else, 76

else if, 76

emissive attribute, 112

equals character notation,

38 , 74

erasing objects, 180

errors

compile-time, 20 , 55

definition, 22

functions, 55–56, 190

HTML, 86

in ICE Code Editor, 19 ,

86

in JavaScript console,

20–23

line numbers, 21

quotes, 54 , 68

run-time, 20

spelling, 21

event listener

avatar movement, 36–40,

46 , 140

camera switching, 122 ,

130

cartwheels and flips, 66

cave-puzzle game, 169–

170 , 173 , 182

collision detection and

avoidance, 97 , 136–138

draggable ramps, 173

goal in tilt-a-board game,

154

Index • 281

Prepared exclusively for Michael Powell