Flash MX 2004 Games : Art to ActionScript

More documents

Recommendations

Info

Flash MX 2004 Games Figure 8.7 Specifying which font outlines to embed But where do we put the code? Simply click on the movie clip then press F9 to open the Actions panel or alternatively you can click on the arrow icon highlighted in the Properties window for the ‘Box’ movie clip, shown circled in Figure 8.8. Figure 8.8 Properties window for the ‘Box’ movie clip When you use movie clips you will often be placing code in an ‘event’. Movie clips have several events; one that occurs many times a second is the ‘enterFrame’ event. This occurs as many times per second as the movie ‘fps’ setting. So if this is set to 20 fps, for example, this event will occur 20 times per second. All movie clip events have the same basic syntax: i.e. the call ‘onClipEvent’ followed by brackets containing a parameter. We will look at using other events as you progress through the book, but for now we will just look at this one. After the brackets we use the usual curly brackets to contain the code that will be executed when this event occurs. Finally we come 110
Chapter 8: In tip-top condition to using a condition. Line 2 of Listing 8.1 shows how we test for the mouse location in relation to the box. One property of a movie clip is the mouse location; _xmouse, _ymouse, stores the mouse location in relation to the anchor point for a clip. For this clip the anchor is in the top left corner to make it easier to read the code. Another property of a movie clip is its size; _width and _height store the dimensions. In this instance if the x or y position of the mouse is greater than zero then it must be both to the right of the left edge and below the top line. If the mouse position is also less than the total width and the total height then it must be within the boundary of the box. We can combine all these tests into a single test using the logical And symbol &&. Every test needs to evaluate to true in order for the combined test to evaluate to true using this logical operator. If the test passes then the code in lines 4 and 5 executes; here we do two things. Line 4 sets the variable ‘overlap’ to ‘Inside’ and moves the frame position of the movie clip ‘Light’ to frame 4. Notice that each of these is prefixed with ‘_parent’. Because this code is inside the movie clip ‘Box’, we need to move up our _parent to get to the main timeline, where the variable ‘overlap’ and the movie clip ‘Light’ are placed. Later in the book we will look at the problems of moving between different levels of a movie. Sometimes this can be a complex exercise, but hopefully in this simple example you can see what is going on. If the overlap test failed then we run the code in Lines 7 and 8 that set the variable ‘overlap’ to ‘No overlap’ and the frame for the ‘Light’ movie clip to 1. One movie clip over another Another common problem is detecting the overlap of one movie clip over another. A very simple technique is to use the built-in method hitTest. my_mc.hitTest(x, y, shapeFlag) my_mc.hitTest(target) Parameters x The x coordinate of the hit area on the Stage. y The y coordinate of the hit area on the Stage. target The target path of the hit area that may intersect or overlap with the instance specified by my_mc. my_mc. A movie clip instance. shapeFlag A Boolean value specifying whether to evaluate the entire shape of the specified instance (true), or just the bounding box (false). Returns A Boolean value of true if my_mc overlaps with the specified hit area, false otherwise. Unfortunately hitTest doesn’t give much detail, so we are going to develop our own hit test. Before we study the code let’s try to understand the problem. The problem is to identify and classify the overlap of two movie clips. Figure 8.9 shows the possible locations of the two clips. 111
Page 3 and 4:
Flash MX 2004 Games
Page 5 and 6:
Flash MX 2004 Games Art to ActionSc
Page 7 and 8:
Contents at a glance Introduction x
Page 9 and 10:
Contents in summary Introduction xi
Page 11 and 12:
Contents in summary Chapter 15: Maz
Page 13 and 14:
Introduction: Learn to write Action
Page 15 and 16:
1 Your first game Rather alarmingly
Page 17 and 18:
Chapter 1: Your first game view of
Page 19 and 20:
Using the Line tool Chapter 1: Your
Page 21 and 22:
Chapter 1: Your first game Adding t
Page 23 and 24:
Chapter 1: Your first game is true
Page 25 and 26:
Chapter 1: Your first game would tr
Page 27 and 28:
_x = startX; _y = startY; moveX = 0
Page 29:
Section 1 Animation The first secti
Page 32 and 33:
Flash MX 2004 Games Using the drawi
Page 34 and 35:
Flash MX 2004 Games Figure 2.7 Stag
Page 36 and 37:
Flash MX 2004 Games The Pencil tool
Page 38 and 39:
Flash MX 2004 Games When you use th
Page 40 and 41:
Flash MX 2004 Games Figure 2.25 Sca
Page 42 and 43:
Flash MX 2004 Games To use a gradie
Page 44 and 45:
Flash MX 2004 Games tweening was se
Page 46 and 47:
Flash MX 2004 Games Figure 2.37 Usi
Page 48 and 49:
3 Simple cut-out animation Flash is
Page 50 and 51:
Flash MX 2004 Games Figure 3.4 Sele
Page 52 and 53:
Flash MX 2004 Games Figure 3.7 Usin
Page 54 and 55:
Flash MX 2004 Games Figure 3.10 The
Page 56 and 57:
Flash MX 2004 Games pressing F5. Th
Page 58 and 59:
Flash MX 2004 Games WalkLeft TurnLe
Page 60 and 61:
4 Using CGI programs to create anim
Page 62 and 63:
Flash MX 2004 Games that sometimes
Page 64 and 65:
Page 66 and 67:
Page 68 and 69:
Flash MX 2004 Games As you get expe
Page 70 and 71:
Flash MX 2004 Games colour layer us
Page 72 and 73:
Flash MX 2004 Games A higher settin
Page 74 and 75: 5 Background art All your games wil
Page 76 and 77: Flash MX 2004 Games Figure 5.3 A si
Page 78 and 79: Flash MX 2004 Games better to expor
Page 80 and 81: Flash MX 2004 Games if it is only d
Page 82 and 83: Figure 5.10 Using symbols to add te
Page 84 and 85: Flash MX 2004 Games independent whe
Page 86 and 87: Flash MX 2004 Games Using photograp
Page 88 and 89: Flash MX 2004 Games Website and you
Page 90 and 91: Flash MX 2004 Games 3 Choose ‘png
Page 92 and 93: Flash MX 2004 Games User input on m
Page 94 and 95: Flash MX 2004 Games Figure 6.8 Opti
Page 97 and 98: 7 So what is a variable? After the
Page 99 and 100: Chapter 7: So what is a variable? a
Page 101 and 102: Chapter 7: So what is a variable? T
Page 103 and 104: Chapter 7: So what is a variable? B
Page 105 and 106: Chapter 7: So what is a variable? 3
Page 107 and 108: Chapter 7: So what is a variable? P
Page 109 and 110: Chapter 7: So what is a variable? 5
Page 111 and 112: Chapter 7: So what is a variable? n
Page 113 and 114: Chapter 7: So what is a variable? B
Page 115 and 116: 8 In tip-top condition Should I go
Page 117 and 118: Chapter 8: In tip-top condition All
Page 119 and 120: Chapter 8: In tip-top condition Wit
Page 121 and 122: } } return false; Chapter 8: In tip
Page 123: Figure 8.5 Properties window for th
Page 127 and 128: Chapter 8: In tip-top condition Tab
Page 129 and 130: Figure 8.12 The anchor point for th
Page 131 and 132: 53 return 4; 54 } 55 } 56 } Listing
Page 133 and 134: Chapter 9: Using loops and the repe
Page 135 and 136: Chapter 9: Using loops Now instead
Page 137 and 138: do{ a++; if (a==10) continue; //Do
Page 139 and 140: Chapter 9: Using loops Two examples
Page 141 and 142: Figure 9.2 The Loops01 project at r
Page 143 and 144: Chapter 9: Using loops Creating sim
Page 145 and 146: Chapter 9: Using loops Creating phy
Page 147 and 148: 1 //Initialise firing 2 for (i=0; i
Page 149 and 150: Chapter 9: Using loops heart of alm
Page 151 and 152: Chapter 10: Keep it modular a game
Page 153 and 154: Chapter 10: Keep it modular for(j=0
Page 155 and 156: Chapter 10: Keep it modular From a
Page 157 and 158: Chapter 10: Keep it modular To call
Page 159 and 160: 4 pt2.init(20, 30); 5 pt2.sum(pt1);
Page 161 and 162: Chapter 10: Keep it modular a locat
Page 163 and 164: Chapter 10: Keep it modular 1 v1 =
Page 165 and 166: Chapter 10: Keep it modular Summary
Page 167 and 168: Chapter 11: Debugging would give th
Page 169 and 170: 4 trace("n = " + n); 5 6 function s
Page 171 and 172: 5 onClipEvent(enterFrame){ 6 count+
Page 173 and 174: 10 name = "Box" + i; 11 eval(name).
Page 175 and 176:
Chapter 11: Debugging 5 switch(i){
Page 177 and 178:
Chapter 11: Debugging Using the Fla
Page 179 and 180:
the Watch window, then you can see
Page 181 and 182:
Figure 11.12 Debugging remotely Cha
Page 183 and 184:
is presumed, www.niklever.net/flash
Page 185 and 186:
Chapter 12: Using external files Th
Page 187 and 188:
Chapter 12: Using external files Wh
Page 189 and 190:
with a query string version: Chapte
Page 191 and 192:
Figure 12.3 Developing the Weather
Page 193 and 194:
function loaded(success){ if (succe
Page 195:
Chapter 12: Using external files
Page 199 and 200:
13 Small games to keep them loading
Page 201 and 202:
Chapter 13: Small games to keep the
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Figure 13.7 Developing the Pong gam
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
14 Quizzes Quizzes are a very popul
Page 221 and 222:
Chapter 14: Quizzes For now we will
Page 223 and 224:
Figure 14.5 Creating a user Chapter
Page 225 and 226:
Figure 14.8 Setting user permission
Page 227 and 228:
Remember that a querystring takes t
Page 229 and 230:
Chapter 14: Quizzes 36 "\’, diffi
Page 231 and 232:
Chapter 14: Quizzes the query strin
Page 233 and 234:
s.Close(); conn.Close(); Response.W
Page 235 and 236:
Chapter 14: Quizzes 1 function setQ
Page 237 and 238:
5 status = "Question deleted"; 6 }
Page 239 and 240:
Chapter 14: Quizzes Summary Most of
Page 241 and 242:
Chapter 15: Mazes The strategy used
Page 243 and 244:
Chapter 15: Mazes Notice that the f
Page 245 and 246:
Chapter 15: Mazes 128, and exclude
Page 247 and 248:
Figure 15.3 Creating the tunnel mod
Page 249 and 250:
Chapter 15: Mazes Open ‘Examples\
Page 251 and 252:
Chapter 15: Mazes sequence to show
Page 253 and 254:
64 Tunnel.gotoAndPlay("T_Right"); 6
Page 255 and 256:
Chapter 15: Mazes 32 dir = EAST; 33
Page 257 and 258:
Chapter 15: Mazes Summary In common
Page 259 and 260:
Figure 16.1 The traditional game Re
Page 261 and 262:
5 cBoard = new Array(64); 6 pBoard
Page 263 and 264:
Chapter 16: Board games 6 }else{ 7
Page 265 and 266:
Chapter 16: Board games Once the pl
Page 267 and 268:
Chapter 16: Board games Here ‘row
Page 269 and 270:
19 }else{ 20 flip[2] = false; 21 }
Page 271 and 272:
8 if (flip[6]) flipArrayLine(i, pie
Page 273 and 274:
Chapter 16: Board games this way, i
Page 275 and 276:
A simple example Figure 17.1 Develo
Page 277 and 278:
Chapter 17: Platformers game much e
Page 279 and 280:
Chapter 17: Platformers If the cat
Page 281 and 282:
Chapter 17: Platformers 11 break; 1
Page 283 and 284:
Chapter 17: Platformers 96 gotoAndP
Page 285 and 286:
a metre. Therefore u − 20t = 0 an
Page 287 and 288:
56 }else if (moveY-4){ 57 moveY -=
Page 289 and 290:
13 name = "_root.Bin" + i; 14 dx =
Page 291 and 292:
16 mc.scale = 1.0; 17 } 18 19 House
Page 293 and 294:
Chapter 17: Platformers 68 }else if
Page 295 and 296:
Chapter 17: Platformers array, ‘d
Page 297 and 298:
Figure 18.1 Developing the football
Page 299 and 300:
5 ScoreB = 0; 6 playerTeam = RED; 7
Page 301 and 302:
50 Pitch.Red2.targetx = -96; 51 Pit
Page 303 and 304:
Chapter 18: Sports simulations Havi
Page 305 and 306:
Chapter 18: Sports simulations 37 k
Page 307 and 308:
Chapter 18: Sports simulations 37 i
Page 309 and 310:
Chapter 18: Sports simulations Upda
Page 311 and 312:
26 break; 27 } 28 } 29 name = "_roo
Page 313 and 314:
Chapter 18: Sports simulations 27 v
Page 315 and 316:
Chapter 18: Sports simulations 1 fu
Page 317 and 318:
Chapter 18: Sports simulations For
Page 319 and 320:
Chapter 18: Sports simulations 22 _
Page 321:
Section 4 Flash for mobiles The mob
Page 324 and 325:
Flash MX 2004 Games Table 19.1 Synt
Page 326 and 327:
Flash MX 2004 Games ‘Device sound
Page 328 and 329:
Flash MX 2004 Games The game uses k
Page 330 and 331:
Flash MX 2004 Games 316 Table 19.2
Page 332 and 333:
20 Using Flash on a PocketPC Pocket
Page 334 and 335:
Flash MX 2004 Games 1 2 3 Conker
Page 336 and 337:
Flash MX 2004 Games 5 }else { 6 //
Page 338 and 339:
Flash MX 2004 Games Figure 20.5 ‘
Page 340 and 341:
Flash MX 2004 Games Reading the mai
Page 343 and 344:
21 High score tables High score tab
Page 345 and 346:
Chapter 21: High score tables Notic
Page 347 and 348:
Figure 21.3 Creating an Access data
Page 349 and 350:
Chapter 21: High score tables 12 Se
Page 351 and 352:
Chapter 21: High score tables 1 so
Page 353 and 354:
Chapter 21: High score tables ‘ge
Page 355 and 356:
Chapter 21: High score tables Assum
Page 357 and 358:
37 " has been set to " + score); 38
Page 359 and 360:
Chapter 21: High score tables 19 fu
Page 361 and 362:
22 Multi-player games using sockets
Page 363 and 364:
Chapter 22: Multi-player games usin
Page 365 and 366:
Page 367 and 368:
The possible tags in this example a
Page 369 and 370:
Page 371 and 372:
Page 373 and 374:
Page 375 and 376:
Figure 23.1 Select Add/Remove Progr
Page 377 and 378:
Figure 23.5 Configuring IIS Figure
Page 379 and 380:
Figure 23.8 Running several simulta
Page 381 and 382:
Chapter 23: Using Flash Communicati
Page 383 and 384:
Page 385 and 386:
Figure 23.11 Live Log tab of the ad
Page 387 and 388:
Page 389 and 390:
24 Embedding Flash In this chapter
Page 391 and 392:
Chapter 24: Embedding Flash You can
Page 393 and 394:
Figure 24.5 Choosing the source fil
Page 395 and 396:
Chapter 24: Embedding Flash A dialo
Page 397 and 398:
Chapter 24: Embedding Flash resourc
Page 399 and 400:
Chapter 24: Embedding Flash can be
Page 401 and 402:
Chapter 24: Embedding Flash 46 { 47
Page 403 and 404:
Appendix A: Integrating Flash with
Page 405 and 406:
Figure A.2 Importing the Flash inte
Page 407 and 408:
Appendix A where ‘clipName’ is
Page 409 and 410:
Appendix B: Tweening in code The ea
Page 411 and 412:
Figure B.1 The graph of y = x 2 App
Page 413 and 414:
Appendix B Joining together curves
Page 415 and 416:
Appendix B want the result to start
Page 417 and 418:
Figure B.7 Creating the tweening pr
Page 419 and 420:
Appendix B Creating keyframes So fa
Page 421 and 422:
and if the curve section is between
Page 423 and 424:
} switch (channel){ case 0: return
Page 425 and 426:
Bibliography Art The Illusion of Li
Page 427 and 428:
Index 3D Studio Max animations, 54
Page 429 and 430:
Buttons: concepts, 6, 113-15, 126-8
Page 431 and 432:
fashions, 60 simplicity benefits, 3
Page 433 and 434:
Floats: bugs, 96 concepts, 95-7 Flu
Page 435 and 436:
Lightwave modeller, 46-54, 69, 226,
Page 437 and 438:
Paint Bucket tool, 4, 5, 27-9 optio
Page 439 and 440:
Set Score button, 340-2 Set-top box
Page 441 and 442:
outline, 17 sections, 17, 21-8 usag
show all

Flash MX 2004 Games : Art to ActionScript

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?