Flash MX 2004 Games : Art to ActionScript

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Flash MX 2004 Games 1 n = 25; 2 i = 10; 3 total = 1; 4 5 trace("Sum = " + sumUpTo(i)); 6 trace("n = " + n); 7 trace("total = " + total); 8 9 function sumUpTo(n:Number):Number{ 10 var total:Number = 0; 11 12 while (n>0){ 13 total += n; 14 n--; 15 } 16 17 return total; 18 } Listing 11.5 ‘Examples/Chapter11/debug07.fla’ Again we create some variables in the old way of just assigning them values. The new function ‘sumUpTo’ is passed a parameter, in this case the contents of the variable i. The function declaration shows that this is supposed to be a number. If instead we pass a string then we get an error message. The function is expected to return a number. Within the function we declare a number type variable called ‘total’, which is not the same variable as created in line 3. The function decrements the variable passed in as the parameter n, but this has no effect on the variable i because it is a copy. Any attempt to manipulate it has no effect on the original. The end of the function returns the value of the local variable ‘total’. Having returned from the function the original variables assigned in lines 1 to 3 have been unaffected; the trace statements in lines 5 to 7 show this to be the case. Variable scope ‘Examples\Chapter11\debug08.fla’ illustrates another extremely common problem. In this simple project we have a dynamic text box tracking the variable ‘count’ and a movie clip with the instance name ‘counter’. The ‘counter’ clip has the following clip events. 1 onClipEvent(load){ 2 count = 0; 3 } 4 156
5 onClipEvent(enterFrame){ 6 count++; 7 } Listing 11.6 ‘Examples/Chapter11/debug08.fla’ Figure 11.2 Developing the debug08 project Chapter 11: Debugging If you try running the program, however, the number stays stubbornly at zero. Why? It is because the text box is tracking the variable ‘count’, rather than the variable ‘counter.count’. This very simple error is so common that you are advised to check for it as a first step in debugging your code. Always ensure that you are dealing with a variable that has the correct scope. Figure 11.3 Setting a variable for a dynamic text box 157
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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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Page 121 and 122: } } return false; Chapter 8: In tip
Page 123 and 124: Figure 8.5 Properties window for th
Page 125 and 126: Chapter 8: In tip-top condition to
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: 4 trace("n = " + n); 5 6 function s
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 207 and 208: Figure 13.7 Developing the Pong gam
Page 219 and 220: 14 Quizzes Quizzes are a very popul
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Chapter 14: Quizzes For now we will
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Figure 14.5 Creating a user Chapter
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Figure 14.8 Setting user permission
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Remember that a querystring takes t
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Chapter 14: Quizzes 36 "\’, diffi
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Chapter 14: Quizzes the query strin
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s.Close(); conn.Close(); Response.W
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Chapter 14: Quizzes 1 function setQ
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5 status = "Question deleted"; 6 }
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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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Flash MX 2004 Games : Art to ActionScript

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