3D Game Programming

I

ICE Code Editor

debugging in, 19 , 86

freezing, 14 , 23

line numbers for error

messages, 22

using, 1–4

id= attribute and web hosting,

213

if

skipping code with, 74 ,

76

tilt-a-board game logic,

156

images, adding simple, 141

immovable objects, see obsta-

cles

index, list, 204

initializing, 172

Internet, publishing code to,

207–215

Internet Explorer, xv, 2

intersections and rays, 94–98

isActive property, 173

isGoal property, 170

isWalking(), 64

J

JavaScript

about, xvi, 67

advantages, 78

boilerplate code, 85–91

Booleans, 73

console, 17–24, 160–161

debugging, 19–23

describing things, 67

documentation, 273–278

geometry, 71–72

libraries, 273–278

listing things, 77 , 204

mathematics, 69–72

objects, 159–164

shape creation, 4–14

strings, 54 , 68 , 73

joining strings, 73

jump(), 103

jumping

fruit-hunt game, 103

purple fruit monster

game, 133–143

K

keyboard controls

avatar movement, 36–40,

46 , 140

camera switching, 122 ,

130

cartwheels and flips, 66

cave-puzzle game, 169 ,

173

collision avoidance, 97

if and else keyword con-

trols, 76

jumping, 103

pausing animations, 130

purple fruit monster

game, 140

resetting games, 143

river-rafting game, 197

tilt-a-board game, 145 ,

152–153

walking animation, 63–65

keycodes, 37

keywords

about, 67

control, 74–76

Kung Fu Panda, 163

L

launchFruit(), 139

lazy programming, 27 , 129

levelUp(), 181

levels, creating, 177–184, see

also multilevel games

Levels object, 179–184

lids, 190 , 193

lights

ambient, 113 , 118 , 148

directional, 187

flashing, 154

goal, 154–155

point, 118 , 148

shadows, 113 , 148

shininess and, 111–113

spot, 148

sunlight, 112 , 114 , 187

tilt-a-board game, 147

using, 109–116, 240–241

line numbers and error mes-

sages, 21

linear factor, 137 , 169

linear velocity, 138 , 197

listenForEvents(), 173

lists

collision avoidance, 96

color, 43 , 110

multilevel games, 180

removing items from, 204

square brackets, 77

of trees in fruit-hunt

game, 101

local coordinates, 205

localToWorld(), 205

log

functions example, 49–

58 , 222

JavaScript console, 18 ,

160–161

logic, game, 156

M

m_angle, 128

makeBorder(), 167

makeGround(), 190–192

makeTree(), 101

makeTreeAt(), 40–43, 96

markers, avatar, 45–47, 82

Mars

phases-of-the-moon

project, 126

solar-system project,

119–123

materials

bouncy, 169

changing color, 109–113

defined, 4

image, 141

reusing, 27

shininess, 111–113

slippery, 169

using, 109–116, 240–241

Math.abs(), 170

Math.cos(), 72

Math.floor(), 102 , 204

Math.PI, 71 , 81

-Math.PI/2, 81

Math.random(), 102 , 170 , 203

Math.sin()

about, 62 , 72

river creation, 193

walking animation, 62

wiggling animation, 102

mathematics, see also geome-

try

in JavaScript, 69–72

order of operations, 70

matrix, 205

me variable, 173

Mesh(), 164

mesh

changing color, 109–113

construction function,

164

defined, 4

Index • 283

Prepared exclusively for Michael Powell