Page 285 - Scratch Programming Playground

flashing colors, sprites, H Lifelong Kindergarten
112, 115 Group (MIT
floor block, 236−237 hide block, 80, 102 Media Lab), 2
hiding sprites. See ghost
For all sprites option, for effect; hide block Line tool, Paint Editor, 7, 56
variable, 70, 71 Line width slider, Paint
For this sprite only option, high score, 150−151, Editor, 7, 77
179−180
for variable, 70, 71 lists, creating, 152−154,
forever block, 10, 41 hitboxes, 79−80, 228−231, 155−156
240, 246
fractals, 31–32 Looks blocks
frames, animation, 201, I costume #, 171
233−237 change effect by, 115
Fruit Slicer program, 145 if block, 136 change size by, 115
begin button, 160−162 if key pressed? code, 130 go to front, 46
designing, 147 if on edge, bounce block, 22 hide, 80, 102
health sprites, 173−176 if then block, 40–41 next costume, 76
high score, 179−180 if then else block, 116–117 say, 24, 72
making game’s ending, importing. See uploading set ghost effect to,
176−178 inertia, 184 80, 245
recovering health, Info Area, 21–22 set size to, 45–46
180−181 input, 218 show, 102
slice trail, 151−160 invincibility mode, 140−141 switch backdrop to, 151
start screen backdrop, iteration, 169, 223 switch costume to, 44
148−151 iterative development, 17 loops
throwing fruit and bombs, J forever, 10, 41
162−173 if, 136
fruitslicer-skeleton.sb2, 147 Jonasson, Martin, 110 repeat until, 82−83, 85
juice, 110
G jumping, sprites, 74−75, M
ghost effect 222−223 Make a Block button, 157
animating sprites, 113, Jump.svg, 232 Make a List button, 152
114−115, 119−120, K Make a Variable button, 70
176−178, 244−245 Maze Runner program
hiding hitboxes, 80, key, determining when adding traps, 56−62
241−242, pressed, 40 complete program, 49−50
go to block, 26 key pressed? block, 40 designing, 36−37
go to front block, 46 keys keeping cat from walking
go to x y block, 44 arrow, 40–42, 53, 74, through walls,
gradient settings, Fill tool, 76, 129 44−46
110−111, 148−149 WASD, 53, 184, 215 maze goal, 46−49
gravity, 69–75 maze levels, 43−44,
greater than (>) block, L moving Cat sprite, 38−42
73–74, 205 left-right rotation style, 97 two-player mode, 51−54
green flag, 5, 6, 10 less than (<) block, 73−74, walking through walls,
griffpatch, 232 84, 105, 112, 62−63
Grow tool, Scratch 205, 223 maze-part-a.sb2, 42
editor, 128 maze-part-b.sb2, 44

INDEX 259