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57200143 flash-action-script-quickref

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57200143 flash-action-script-quickref

  1. 1. Flash ActionScript Program Flow Control setInterval, clearInterval Repeatly execute a function (or an object). if (condition){ if (age>=18) { Quick Reference statement(s); trace("welcome, user"); ========= Example========= Author: Jialong He } else { } var intervalId:Number; Jialong_he@yahoo.com statement(s); else { var count:Number = 0; http://tiger.la.asu.edu } trace("sorry, junior"); var maxCount:Number = 10; } var duration:Number = 20;Introduction for (init; condition; next) { for (Cnt = 1; Cnt<10; Cnt++) { function myCallback():Void { statement(s); trace(Cnt);Using Flash to create animations on the web is popular because the flash } } trace(count);player is installed on most computers and the published flash file (SWF if(count >= maxCount) {clearInterval(intervalId);}file) is small. Flash has a powerful scripting language called ActionScript. count++;You can use write script to manipulate and control objects on the stage. Its switch (expression){ Switch (myChar) { }syntax is similar to JavaScript (or C++). caseClause: case "A" : intervalId = setInterval(this, "myCallback", duration); [defaultClause:] case "a" :Note: this quick reference is based on ActionScript 2.0 language reference. } trace("you pressed A or a"); break; escape, unescape Converts the parameter to a string andScript Example default : encodes it in a URL-encoded format, where trace("you did not press A"); all nonalphanumeric characters are replacedA script can be associated with a keyframe or with an object. To test the with % hexadecimal sequences (e.g, @ to }following script, copy it to the action panel. Press “Ctrl + Enter” to start the %40).flash file. for (var in object) { var myObject:Object = {Name:"Tara", statement(s); age:27, city:"San Francisco"}; getProperty, setProperty Get (set) movie clip property//==================== }// A simple ActionScript for (var prop in myObject) { getURL Load a web page in browser//==================== trace(myObject[prop]); on (event) { Mouse/ket event handlerfor (Cnt=1; Cnt<10; Cnt++) { } Press, release, releaseOutside, rollOut, trace(Math.random()); while(condition) { var Cnt:Number = 0; } rollOver, dragOut, dragOver, keyPress} statement(s); while (Cnt < 20) {trace ("Hello, World!"); } trace(Cnt); e.g.; on (press) { startDrag(this); } i += 3; onClipEvent(movieEvent: Movie clip event handler. load, unload, } Object) { enterFrame, mouseMove, MouseDown,Operator do { statement(s) } while var myVar:Number = 0; statements; MouseUp, KeyDown, KeyUp, Data.+, -, *, /, % Add, Subtract, Multiply, Division, Remainder (condition) do { }+=, -=, *=, =/, =% Combine with assignment operator trace(myVar); onClipEvent (keyDown) { myVar++; if (Key.getCode() == Key.RIGHT) {++, --, [] Increase, decrease, Array access } while (myVar < 5); this._parent.nextFrame();==, !=, <, <=, >, >= Comparison, equal, not equal, less than, … function FName(P){ function mySquared(x:Number) { } else if (Key.getCode() == Key.LEFT) {!, &&, || Logical NOT, AND, OR statement(s) return Math.pow(x, 2); this._parent.prevFrame(); } } }<<, >>, >>> Bit shift, left, right, right unsigned }~, &, |, ^ Bitwise NOT, AND, OR, XOR class, interface, implement, Define custom class related statements dynamic, extend, private, startDrag, stopDrag Makes the target movie clip draggable whilenew, delete Allocate (delete) an object public, intrinsic the movie plays.typeof, instanceof get expression type, test an instance my_mc.onPress = function () {//, /* */ One line and multiple line comments startDrag(this); Global Functions } play, stop, nextFrame, prevFrame Main timeline movie clip play head my_mc.onRelease = function() {Constants and Compiler Directives gotoAndPlay, gotoAndStop control stopDrag(); Predefined constants nextScene, prevScene }true, false, undefined,null, NaN, Infinity loadMovie, loadMovieNum Loads (unload) a SWF, JPEG, GIF, fscommand Lets the SWF file communicate with eithernewline unloadMovie, unloadMovieNum or PNG file from local disk or web Flash Player or the program that is hosting Initialization actions are executed only once server into a movie clip Flash Player, such as a web browser.#initclip statements(s) when a SWF file is played loadVariables, loadVariablesNum Reads data from an external file either on local disk or on web server e.g, fscommand("fullscreen", true);#endinitclip isFinite, isNaN Test number#include “filename.as" Include external ActionScript
  2. 2. getVersion , targetPath, Miscellaneous functions.trace, getTimer,removeMovieClip Math MouseduplicateMovieClip Properties E, LN10, LN2, LOG10E, LOG2E, PI, SORT1_2, SORT2 Events onMouseDown, onMouseMove, onMouseUp, onMouseWheel Methods abs, acos, asin, atan, atan2, ceil, cos, exp, floor, log, max, min, Methods addListener, hide, removeListener, show pow, random, round, sin, sqrt, tan Example var mouseListener:Object = new Object();Global Properties Example trace(Math.log(0)); // output: -Infinity_global A reference to the global object that holds the trace(Math.atan(-1)); // output: -0.785398163397448 mouseListener.onMouseDown = function() { core ActionScript classes, such as String, trace("Mouse down"); Object, Math, and Array. };_parent Specifies or returns a reference to the movie clip String mouseListener.onMouseMove = function() { or object that contains the current movie clip trace(_xmouse); or object. Properties length trace(_ymouse); Methods charAt, charCodeAt, concat, fromCharCode, indexOf, };_root Specifies or returns a reference to the root movie lastIndexOf, slice, split, substr, substring, toLowerCase, mouseListener.onMouseUp = function() { clip Timeline. toString, toUpperCase, valueOf trace("Mouse up");This References an object or movie clip instance. }; Example var my_str:String = new String("Hello world"); Mouse.addListener(mouseListener); var mySubstring:String = new String();Common Classes mySubstring = my_str.substr(6,5);Object trace(mySubstring); // output: world Buttonconstructor Object trace (mySubstring.toUpperCase()); //WORLD Properties _alpha, blendMode, cacheAsBitmap, enabled, filters,Properties constructor, _proto_, prototype, _resolve, _focusrect, _height, _highquality, menu, _name, _parent,Methods addProperty, hasOwnProperty, isPropertyEnumerable, _quality, _rotation, scale9Grid, _soundbuftime, tabEnabled, isPrototypeOf, registerClass, toString, unwatch, valueOf, Stage tabIndex, _target, trackAsMenu, _url, useHandCursor, watch _visible, _width, _x, _xmouse, _xscale, _y, _ymouse, _yscale Properties align, height, scaleMode, showMenu, width Events onDragOut, onDragOver, onKeyDown, onKeyUp, Event onResize onKillFocus, onPress, onRelease, onReseaseOutside,Array Methods addListener, removeListener onRollOut, onRollOver, onSetFocusProperties CASEINSENSITIVE, DESCENDING, length, NUMRIC, Example Stage.scaleMode = "noScale" Methods getDepth RETURNINDEXEDARRAY, UNIQUESORT var myListener:Object = new Object(); Example myBtn1_btn.enabled = true; myListener.onResize = function () {Methods concat, join, pop, push, reverse, shift, slice, sort, sortOn, splice, myBtn2_btn.enabled = false; trace("Stage size is now " + Stage.width + " by " + toString, unshift. Stage.height); myBtn1_btn.onRelease = function() {Example var myA:Array = new Array("a","b","c"); } trace( "you clicked : " + this._name ); var myN:Array = new Array(1,2,3); Stage.addListener(myListener); }; var myAN:Array =myA.concat(myN); myBtn2_btn.onRelease = function() { trace(myAN.length); trace( "you clicked : " + this._name ); // Creates array [a,b,c,1,2,3]. Key }; Properties BACKSPACE, CAPSLOCK, CONTROL, DELETEKEY, DOWN, END, ENTER, ESCAPE, HOME, INSERT, LEFT,Date PGDN, PGUP, RIGHT, SHIFT, SPACE, TAB, UP, _listeners TextFormatProperties Only have properties inherited from Object. Events onKeyDown, onKeyUp Constructor TextFormatMethods getDate, getDay, getFullYear, getHours, getMilliseconds, Methods addListener, getAscii, getCode, isAccessible, isDown, Properties align, blockIndent, bold, bullet, color, font, indent, italic, getMinutes, getMonth, getSeconds, getTime, isToggled, removeListener kerning, leading, leftMargin, letterSpacing, rightMargin, getTimezoneOffset, getYear, setDate, setFullYear, setHours, Example var myListener:Object = new Object(); size, tabStops, target, underline, url setMilliseconds, setMinutes, setMonth, setSeconds, setTime, setYear, toString, valueOf, (most functions have UTC ones) myListener.onKeyDown = function () { Methods getTextExtent trace ("You pressed a key.");Example var my_date:Date = new Date(2004,4,25); Example var my_fmt:TextFormat = new TextFormat(); } trace(my_date.getYear()); // output: 104 my_fmt.bold = true; my_fmt.font = "Arial"; myListener.onKeyUp = function () { trace(my_date.getFullYear()); // output: 2004 my_fmt.size = 12; my_fmt.color = 0xFF0000; trace ("You released a key."); my_date.setYear(99); } trace(my_date.getYear()); // output: 99 this.createTextField("stats_txt", 5000, 10, 0, 530, 22); Key.addListener(myListener); trace(my_date.getFullYear()); // output: 1999 stats_txt.setNewTextFormat(my_fmt);
  3. 3. Video XMLNodeTextField Properties _alpha, deblocking, _height, height, _name, _parent, _rotation, Constructor XMLNode smoothing, _visible, _width, width, _x, _xmouse, _xscale, _y, Properties attributes, childNodes, firstChild, lastChild,localName,Properties _alpha, antiAliasType, autoSize, background, _ymouse, _yscale namespaceURI, nextSibling, nodeName, nodeType, backgroundColor, border, borderColor, bottomScroll, condeseWhite, enbedFonts, filter, gridFitType, _height, Methods attachVideo, clear nodeValue, parendNode, prefix, previousSibling _highquality, hscroll, html, htmlText, length, maxChars, Example var my_video:Video; Methods appendChild, cloneNode, getnamespaceForPrefix, maxhscroll, maxscroll, menu, mouseWheelEnabled, multiline, var my_nc:NetConnection = new NetConnection(); getPrefixForNamespace, hasChildNodes, removeNode, _name, _parent, password, _quality, restrict, _rotation, scroll, my_nc.connect(null); toString selectable, sharpness, _soundbuftime, styleSheet, tabEnabled, var my_ns:NetStream = new NetStream(my_nc); tabIndex, _target, text, textColor, textHeight, textWidth, my_video.attachVideo(my_ns); thickness, type, _url, variable, _visible, _width, wordWrap, _x, my_ns.play("video1.flv"); _xmouse, _xscale, _y, _ymouse, _yscaleEvent onChanged, onKillFocus, onScroller, onSetFocusMethods addListener, getDepth, getFontList, getNewTextFormat, MovieClip XML getTextFormat, removeLisener, removeTextField, replaceSel, Properties _alpha, blendMode, cacheAsBitmap, _currentframe, Constructor XML replaceText, setNewTextFormat, setTextFormat _droptarget, enabled, filters, focusEnabled, _focusrect, Properties contenttype, docTypeDecl, idMap, ignoreWhite, loaded,Example my_txt.border = true; _framesloaded, _height, _highquality, hitArea, _lockroot, status, xmlDecl my_txt.type = "input"; menu, _name, opaqueBackground, _parent, _quality, _rotation, scale9Grid, scrollRect, _soundbuftime, tabChildren, Events onData, onHTTPStatus, onLoad my_txt.onChanged = function(textfield_txt:TextField) { tabEnabled, tabIndex, _target, _totalframes, trackAsMenu, Methods addRequestHeader, createElement, createTextNode, trace(textfield_txt._name+" changed"); transform, _url, useHandCursor, _visible, _width, _x, getBytesLoaded, getBytesTotal, load, parseXML, send, }; _xmouse, _xscale, _y, _ymouse, _yscale sendAndLoad Methods attachAudio, attachBitmap, attachMovie, beginBitmapFill, Example var myXML:XML = new XML(); var txtListener:Object = new Object(); beginFill, beginGradientFill, clear, createEmptyMovieClip, myXML.ignoreWhite = true; txtListener.onChanged = function(textfield_txt:TextField) { createTextField, curveTo, duplicateMovieClip, endFill, trace(textfield_txt._name+" changed and notified getBounds, getBytesLoaded, getBytesTotal, getDepth, myXML.onLoad = function () { myListener"); getInstanceAtDepth, getNextHightsDepth, getRect, trace(this.childNodes); }; getSWFVersion, getTextSnapshot, getURL, globalToLocal, } my_txt.addListener(txtListener); gotoAndPlay, gotoAndStop, hitTest, lineGradientStyle, lineStyle, lineTo, loadMoive, loadVariables, localToGlobal, myXML.load ("flute.xml"); moveTo, nextFrame, play, prevFrame, removeMovieClip, setMask, setMask, startDrag, stop, stopDrag, swapDepths,Sound unloadMovieconstructor Sound Events onData, onDragOut, onDragOver, onEnterFrame, onKeyDown, onKeyUp, onKillFocus, onLoad, onMouseDown, XMLsocketProperties duration, id3, position onMouseMove, onMouseUp, onPress, onRelease, Constructor XMLSocketEvents onID3, onLoad, onSoundComplete onReleaseOutside, onRollOut, onRollOver, onSetFocus, Events onClose, onConnect, onData, onXMLMethods attachSound, getBytesLoaded, getBytesTotal, getPan, onUnload Methods close, connect, send getTransform, getVolume, loadSound, setPan, Example this.createEmptyMovieClip("triangle", setTransform, setVolume, start, stop this.getNextHighestDepth()); Example var socket:XMLSocket = new XMLSocket() socket.onConnect = function (success:Boolean) {Example var my_sound:Sound = new Sound(); triangle.beginFill(0x0000FF, 100); if (success) { my_sound.attachSound("logoff_id"); triangle.moveTo(10, 10); trace ("Connection succeeded!") triangle.lineTo(10, 100); } else { my_sound.onSoundComplete = function() { triangle.lineTo(100, 10); trace ("Connection failed!") trace("mySoundID completed"); triangle.lineTo(10, 10); } }; } triangle.onRollOver = function() { if (!socket.connect(null, 2000)) { my_sound.start(); this._alpha = 50; trace ("Connection failed!") }; } triangle.onRollOut = function() { this._alpha = 100; };

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