Flash MX 2004 Games : Art to ActionScript

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Flash MX 2004 Games Try running ‘Examples/Chapter12/Weather.html’; this simple program loads data from a static text file into the current Flash movie. The action on frame 1 starts this happening: loaded = 0; _root.loadVariables("weather.txt"); Here we have set a ‘_root’ level variable ‘loaded’ to zero. The reason for this is that ‘loadVariables’ returns immediately after the call, on many connections this does not mean that the variables are now set as expected. You must wait until they have been correctly set, by including a variable in the loading file that when loaded will have a know value you can detect when the loading has completed. Here is the file ‘weather.txt’. date=23 February 2002&day=Saturday&time=9am&place=dobcross&temperature=- 1C&weather=Snow and high winds&outlook=Winds dying, snow changing to sleet&font=Copperplate&mapmode=UK&symbols=ukweathermap.swf&anim=1&webcam= 1&webcamURL=http://www.dobcross.co.uk/webcam/cam1.html&lastupdate=06:00 23/02/02&loaded=1& Notice that the variable ‘loaded’ is included in the file and is set to the value 1. The variable does not have to be called ‘loaded’ – any variable will do as long as the file sets it to a known value; it could be ‘Batman=Bruce Wayne’, as long as before the call to ‘loadVariable’ the variable ‘Batman’ is set to some value other than ‘Bruce Wayne’. Because we must wait for the external file to load we have a simple looping script that checks the value of the variable ‘loaded’ and continues to loop until the value is one. On some occasions because of server problems the file may never load; because of this it is useful to add a counter. Each loop in the wait script will increment the counter. If the counter exceeds a 30 second wait then you may choose to show a text box that explains that there are problems with the server at present, come back later. If the ‘fps’ for the current movie is 25, then 30 seconds will have elapsed when the counter is 25 ∗ 30 = 750. You may decide that two minutes is a better waiting time; this is dependent on your server and the traffic on the site. Simultaneous users all trying to access the file will greatly affect the load time. When using ‘loadVariables’ the external file can be a static text file, but it can also be a text file generated by a CGI script, Active Server Pages (ASP), or PHP. Before you start reeling with the alternatives, we are only going to consider one, ASP. In the above example we used a static text file. But in a real application the data will be dynamic. You will be connecting to actual data that is current at the present time. This is where server side creation of the strings that load into your program becomes vital. Let’s consider one of the most commonly used techniques. So what is ASP? An ASP page is simply a script page that when you access it from a URL runs as a program on the server, using either VBScript or JavaScript. This program can then generate the variable data that Flash requires, passing this information back to Flash dynamically. You can create an ASP page using any text editor. But to function it needs to be run from a Windows server. If you are 176
Figure 12.3 Developing the Weather program Chapter 12: Using external files using Win95, Win98, Win2000 or WinXP Professional then you can set up your own machine to function as a server by installing Internet Information Services (IIS). To install Internet Information Services 1. Click Start, point to Settings, click Control Panel and start the Add/Remove Programs application. 2. Select Add/Remove Windows Components and then follow the on-screen instructions to install, remove, or add components to IIS. If you are able to install IIS then you must create and run ASP pages in the ‘inetpub/wwwroot’ folder that IIS creates. If you are not able to install IIS because you are on a MAC platform or your version of Windows does not contain IIS then you will need to run the ASP pages from a remote server, uploading the pages using an FTP program to test them. Later in the book we will study ASP pages in more detail. Here is a very simple example:
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Flash MX 2004 Games
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Flash MX 2004 Games Art to ActionSc
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Contents at a glance Introduction x
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Contents in summary Introduction xi
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Contents in summary Chapter 15: Maz
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Introduction: Learn to write Action
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1 Your first game Rather alarmingly
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Chapter 1: Your first game view of
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Using the Line tool Chapter 1: Your
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Chapter 1: Your first game Adding t
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Chapter 1: Your first game is true
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Chapter 1: Your first game would tr
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_x = startX; _y = startY; moveX = 0
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Section 1 Animation The first secti
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Flash MX 2004 Games Using the drawi
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Flash MX 2004 Games Figure 2.7 Stag
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Flash MX 2004 Games The Pencil tool
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Flash MX 2004 Games When you use th
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Flash MX 2004 Games Figure 2.25 Sca
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Flash MX 2004 Games To use a gradie
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Flash MX 2004 Games tweening was se
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Flash MX 2004 Games Figure 2.37 Usi
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3 Simple cut-out animation Flash is
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Flash MX 2004 Games Figure 3.4 Sele
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Flash MX 2004 Games Figure 3.7 Usin
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Flash MX 2004 Games Figure 3.10 The
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Flash MX 2004 Games pressing F5. Th
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Flash MX 2004 Games WalkLeft TurnLe
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4 Using CGI programs to create anim
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Flash MX 2004 Games that sometimes
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Flash MX 2004 Games As you get expe
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Flash MX 2004 Games colour layer us
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Flash MX 2004 Games A higher settin
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5 Background art All your games wil
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Flash MX 2004 Games Figure 5.3 A si
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Flash MX 2004 Games better to expor
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Flash MX 2004 Games if it is only d
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Figure 5.10 Using symbols to add te
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Flash MX 2004 Games independent whe
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Flash MX 2004 Games Using photograp
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Flash MX 2004 Games Website and you
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Flash MX 2004 Games 3 Choose ‘png
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Flash MX 2004 Games User input on m
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Flash MX 2004 Games Figure 6.8 Opti
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7 So what is a variable? After the
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Chapter 7: So what is a variable? a
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Chapter 7: So what is a variable? T
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Chapter 7: So what is a variable? B
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Chapter 7: So what is a variable? 3
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Chapter 7: So what is a variable? P
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Chapter 7: So what is a variable? 5
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Chapter 7: So what is a variable? n
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Chapter 7: So what is a variable? B
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8 In tip-top condition Should I go
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Chapter 8: In tip-top condition All
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Chapter 8: In tip-top condition Wit
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} } return false; Chapter 8: In tip
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Figure 8.5 Properties window for th
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Chapter 8: In tip-top condition to
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Chapter 8: In tip-top condition Tab
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Figure 8.12 The anchor point for th
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53 return 4; 54 } 55 } 56 } Listing
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Chapter 9: Using loops and the repe
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Chapter 9: Using loops Now instead
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do{ a++; if (a==10) continue; //Do
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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
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Page 185 and 186: Chapter 12: Using external files Th
Page 187 and 188: Chapter 12: Using external files Wh
Page 189: with a query string version: Chapte
Page 193 and 194: function loaded(success){ if (succe
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Page 199 and 200: 13 Small games to keep them loading
Page 201 and 202: Chapter 13: Small games to keep the
Page 207 and 208: Figure 13.7 Developing the Pong gam
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
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Chapter 15: Mazes The strategy used
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Chapter 15: Mazes Notice that the f
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Chapter 15: Mazes 128, and exclude
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Figure 15.3 Creating the tunnel mod
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Chapter 15: Mazes Open ‘Examples\
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Chapter 15: Mazes sequence to show
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64 Tunnel.gotoAndPlay("T_Right"); 6
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Chapter 15: Mazes 32 dir = EAST; 33
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Chapter 15: Mazes Summary In common
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Figure 16.1 The traditional game Re
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5 cBoard = new Array(64); 6 pBoard
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Chapter 16: Board games 6 }else{ 7
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Chapter 16: Board games Once the pl
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Chapter 16: Board games Here ‘row
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19 }else{ 20 flip[2] = false; 21 }
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8 if (flip[6]) flipArrayLine(i, pie
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Chapter 16: Board games this way, i
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A simple example Figure 17.1 Develo
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Chapter 17: Platformers game much e
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Chapter 17: Platformers If the cat
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Chapter 17: Platformers 11 break; 1
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Chapter 17: Platformers 96 gotoAndP
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a metre. Therefore u − 20t = 0 an
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56 }else if (moveY-4){ 57 moveY -=
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13 name = "_root.Bin" + i; 14 dx =
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16 mc.scale = 1.0; 17 } 18 19 House
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Chapter 17: Platformers 68 }else if
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Chapter 17: Platformers array, ‘d
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Figure 18.1 Developing the football
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5 ScoreB = 0; 6 playerTeam = RED; 7
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50 Pitch.Red2.targetx = -96; 51 Pit
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Chapter 18: Sports simulations Havi
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Chapter 18: Sports simulations 37 k
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Chapter 18: Sports simulations 37 i
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Chapter 18: Sports simulations Upda
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26 break; 27 } 28 } 29 name = "_roo
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Chapter 18: Sports simulations 27 v
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Chapter 18: Sports simulations 1 fu
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Chapter 18: Sports simulations For
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Chapter 18: Sports simulations 22 _
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Section 4 Flash for mobiles The mob
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Flash MX 2004 Games Table 19.1 Synt
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Flash MX 2004 Games ‘Device sound
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Flash MX 2004 Games The game uses k
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Flash MX 2004 Games 316 Table 19.2
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20 Using Flash on a PocketPC Pocket
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Flash MX 2004 Games 1 2 3 Conker
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Flash MX 2004 Games 5 }else { 6 //
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Flash MX 2004 Games Figure 20.5 ‘
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Flash MX 2004 Games Reading the mai
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21 High score tables High score tab
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Chapter 21: High score tables Notic
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Figure 21.3 Creating an Access data
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Chapter 21: High score tables 12 Se
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Chapter 21: High score tables 1 so
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Chapter 21: High score tables ‘ge
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Chapter 21: High score tables Assum
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37 " has been set to " + score); 38
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Chapter 21: High score tables 19 fu
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22 Multi-player games using sockets
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Chapter 22: Multi-player games usin
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The possible tags in this example a
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Figure 23.1 Select Add/Remove Progr
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Figure 23.5 Configuring IIS Figure
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Figure 23.8 Running several simulta
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Chapter 23: Using Flash Communicati
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Figure 23.11 Live Log tab of the ad
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24 Embedding Flash In this chapter
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Chapter 24: Embedding Flash You can
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Figure 24.5 Choosing the source fil
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Chapter 24: Embedding Flash A dialo
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Chapter 24: Embedding Flash resourc
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Chapter 24: Embedding Flash can be
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Chapter 24: Embedding Flash 46 { 47
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Appendix A: Integrating Flash with
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Figure A.2 Importing the Flash inte
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Appendix A where ‘clipName’ is
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Appendix B: Tweening in code The ea
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Figure B.1 The graph of y = x 2 App
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Appendix B Joining together curves
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Appendix B want the result to start
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Figure B.7 Creating the tweening pr
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Appendix B Creating keyframes So fa
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and if the curve section is between
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} switch (channel){ case 0: return
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Bibliography Art The Illusion of Li
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Index 3D Studio Max animations, 54
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Buttons: concepts, 6, 113-15, 126-8
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fashions, 60 simplicity benefits, 3
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Floats: bugs, 96 concepts, 95-7 Flu
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Lightwave modeller, 46-54, 69, 226,
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Paint Bucket tool, 4, 5, 27-9 optio
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Set Score button, 340-2 Set-top box
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outline, 17 sections, 17, 21-8 usag
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