Tree - ContextFreeArtAS3
somebody please optimize this code!
source code: http://github.com/mash/ContextFreeArt-AS3
This software is a port of ContextFree.js to Actionscript3.
Context Free Art is http://www.contextfreeart.org/index.html
ContextFree.js is http://code.google.com/p/contextfree/
some hints about implementation for improvement
ContextFree is a combination of resized primitive shapes:
Circle, Square, Triangle
in this implementation, every primitive shapes are
"children" of "ContextFreeArt",
which makes it slow to "addChild" and render
after there's already plenty of children.
I thought it would be faster if we draw each primitive when needed,
but bitmaps quality drops when resized
誰か最適化してちょうだい！
ContextFreeはprimitiveな円と四角と三角形の組み合わせです
今の実装では、ContextFreeにどんどんaddChildしていくので
大量にaddChildした後にだんだんパフォーマンスが落ちていきます..
必要な時にbitmapdata.drawしていけばよいのでしょうが
リサイズ時に画質劣化が激しいので厳しいのでは,,（今ココ
/**
* Copyright mash ( http://wonderfl.net/user/mash )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/5ZzD
*/
// somebody please optimize this code!
// source code: http://github.com/mash/ContextFreeArt-AS3
// This software is a port of ContextFree.js to Actionscript3.
// Context Free Art is http://www.contextfreeart.org/index.html
// ContextFree.js is http://code.google.com/p/contextfree/
// some hints about implementation for improvement
// ContextFree is a combination of resized primitive shapes:
// Circle, Square, Triangle
// in this implementation, every primitive shapes are
// "children" of "ContextFreeArt",
// which makes it slow to "addChild" and render
// after there's already plenty of children.
// I thought it would be faster if we draw each primitive when needed,
// but bitmaps quality drops when resized
// 誰か最適化してちょうだい！
// ContextFreeはprimitiveな円と四角と三角形の組み合わせです
// 今の実装では、ContextFreeにどんどんaddChildしていくので
// 大量にaddChildした後にだんだんパフォーマンスが落ちていきます..
// 必要な時にbitmapdata.drawしていけばよいのでしょうが
// リサイズ時に画質劣化が激しいので厳しいのでは,,（今ココ
package {
import flash.display.*;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.net.URLLoader;
import flash.net.URLRequest;
public class Tree extends Sprite{
public function Tree(){
var cfdg :String = <><![CDATA[
startshape Tree
rule Tree {
CIRCLE { s .5 1.2 }
Tree { s .95 y .3 r 3}
}
rule Tree .2 {
Tree { flip 90 } }
rule Tree .2 {
Tree { r 10 }
Tree { r -30 s .6} }
]]></>;
start( cfdg );
}
private function start( cfdg :String ) :void {
var art :ContextFreeArt = new ContextFreeArt( cfdg, 465, 465 );
addChild( art );
stage.addEventListener( MouseEvent.CLICK, function(ev:MouseEvent) :void {
art.tick();
});
}
}
}
function log() :void {}
//package jp.maaash {
import flash.display.Sprite;
////////import jp.maaash.contextfreeart.Tokenizer;
//import jp.maaash.contextfreeart.Compiler;
//import jp.maaash.contextfreeart.Renderer;
//public class ContextFreeArt extends Sprite {
class ContextFreeArt extends Sprite {
private var renderer :Renderer;
public function ContextFreeArt( cfdg_text :String, width :Number = 640, height :Number = 480 ) {
var t :Tokenizer = new Tokenizer;
var tokens :Array = t.tokenize( cfdg_text );
var c :Compiler = new Compiler;
var compiled :Object = c.compile( tokens );
logger("compiled: ",compiled);
renderer = new Renderer( width, height );
renderer.clearQueue();
renderer.render( compiled, this );
}
public function tick() :void {
renderer.tick();
}
private function logger(... args) :void {
if ( 1 ) {
return;
}
log.apply(null, (new Array("[ContextFreeArt]", this)).concat(args));
}
}
//}
//package jp.maaash.contextfreeart {
//import jp.maaash.contextfreeart.state.*;
import flash.utils.getDefinitionByName;
//public class Compiler{
class Compiler{
private const keywords :Array = [ "startshape", "rule", "background" ];
public var compiled :Object = {};
public var state :IState;
private var curKey :String;
private var curValues :Array;
private var obj :Object;
public function Compiler(){
}
public function compile( tokens :Array ) :Object {
state = new General;
while ( tokens.length > 0 ) {
var token :String = tokens.shift();
var nextState :Array = state.eat( token, this );
//logger("[compile]token: "+token+" nextState: "+nextState);
if ( nextState ) {
next( nextState );
}
}
return compiled;
}
private function next( state_and_args :Array ) :void {
var className :String = state_and_args.shift();
// uppercase the 1st char
className = className.substr(0,1).toUpperCase() + className.substr(1);
switch( className ) {
case "Startshape":
state = new Startshape;
break;
case "General":
state = new General;
break;
case "Background":
state = new Background;
break;
case "Rule":
state = new Rule;
break;
case "RuleWeight":
state = new RuleWeight( state_and_args );
break;
case "RuleDraw":
state = new RuleDraw( state_and_args );
break;
case "ShapeAdjustment":
state = new ShapeAdjustment( state_and_args );
break;
}
// var classObject :Class = getDefinitionByName( className ) as Class;
//
// if ( state_and_args.length > 0 ) {
// state = new classObject( state_and_args );
// }
// else {
// state = new classObject;
// }
}
private var stateGeneral :General;
private var stateStartshape :Startshape;
private var stateBackground :Background;
private var stateRule :Rule;
private var stateRuleWeight :RuleWeight;
private var stateRuleDraw :RuleDraw;
private var stateShape :ShapeAdjustment;
private function logger(... args) :void {
if ( 1 ) {
return;
}
log.apply(null, (new Array("[compiler]", this)).concat(args));
}
}
//}
//package jp.maaash.contextfreeart {
//public class Tokenizer{
class Tokenizer{
private var input :String;
private const stopChars :Array = [" ", "{", "}", "\n", "\r", "\t"];
public function Tokenizer() {
}
// TODO: String comments
// TODO: Handle ordered arguments (i.e., square brakets)
// TODO: Handle the | operator
public function tokenize( _input :String ) :Array {
input = _input;
// To make it easier to parse, we pad the brackets with spaces.
input = input.replace( /([{}])/g, " $1");
var tokens :Array = new Array;
var head :Object = { lastPos: 0 };
while( 1 ) {
head = tokenizeNext( head.lastPos );
if ( head == null ) { break; }
if ( head.token ) {
tokens.push( head.token );
}
}
logger("[tokenize]tokens: ",tokens);
return tokens;
}
private function tokenizeNext( pos :Number ) :Object {
var stops :Array = new Array;
var len :int = stopChars.length;
for ( var i:int=0; i<len; i++ ) {
var stopChar :String = stopChars[ i ];
var foundPos :int = input.indexOf( stopChar, pos );
if ( foundPos != -1 ) {
stops.push( foundPos + 1 );
}
}
if ( stops.length == 0 ) { return null; }
var stopPos :Number = Math.min.apply( null, stops );
var token :String = input.substr(pos, stopPos-pos);
// Remove whitespace characters as they can't be
// tokens. Brackets can be tokens, so those don't
// get removed.
token = token.replace( /[ \n\r\t]/, "" );
return { token: token, lastPos: stopPos }
}
private function logger(... args) :void {
if ( 1 ) {
return;
}
log.apply(null, (new Array("[Tokenizer]", this)).concat(args));
}
}
//}
//package jp.maaash.contextfreeart {
import flash.display.DisplayObjectContainer;
import flash.display.Shape;
import flash.display.Sprite;
import flash.display.Graphics;
import flash.events.TimerEvent;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.utils.Timer;
//public class Renderer{
class Renderer{
private var width :Number = 640;
private var height :Number = 480;
private var globalScale :Number = 300;
private var centeringScale :Number = 1;
private var centeringMatrix :Matrix = new Matrix;
private var queue :Array;
private var compiled :Object;
private var container :Sprite;
private var background :Sprite;
private var isRendering :Boolean = false;
private var maxThreads :int = 1000;
private var tickTimer :Timer;
public function Renderer( _width :Number = 0, _height :Number = 0 ){
if ( _width ) { width = _width; }
if ( _height ) { height = _height; }
logger("w: "+width+" h: "+height);
}
public function render( _compiled :Object, _container :DisplayObjectContainer ) :void {
compiled = _compiled;
background = new Sprite;
_container.addChild( background );
container = new Sprite;
_container.addChild( container );
if ( ! queue ) { queue = new Array; }
drawBackground();
draw();
tickTimer = new Timer( 30 );
tickTimer.addEventListener( TimerEvent.TIMER, tick );
tickTimer.start();
}
public function tick( e :TimerEvent = null ) :void {
//while ( queue.length > 0 ) {
if ( queue.length > 0 ) {
isRendering = true;
var concurrent :int = Math.min( queue.length - 1, maxThreads );
for ( var i :int=0; i <= concurrent; i++ ) {
var args :Array = queue.shift();
drawRule.apply( null, args );
}
center();
}
}
private function center() :void {
var rect :Rectangle = container.getRect( container );
// resize
centeringScale = Math.min( width / rect.width, height / rect.height ) * 0.9;
centeringMatrix.a = centeringMatrix.d = centeringScale;
// centering
centeringMatrix.tx = width /2 - (rect.left + rect.right ) / 2 * centeringScale;
centeringMatrix.ty = height/2 - (rect.top + rect.bottom) / 2 * centeringScale;
container.transform.matrix = centeringMatrix;
//logger("[center]mtx,rect,container: ",centeringMatrix,rect,container);
}
private function draw() :void {
var ruleName :String = compiled.startshape;
var foregroundColor :Color = new Color;
drawRule( ruleName, new Matrix, foregroundColor );
}
private function drawRule( ruleName :String, mtx :Matrix, color :Color, priority :Number = 0 ) :void {
//logger("[drawRule]ruleName: "+ruleName+" mtx: ",mtx);
// When things get too small, we can stop rendering.
// Too small, in this case, means less than a pixel.
if( Math.abs( mtx.a ) * globalScale * centeringScale < 1 && Math.abs( mtx.b ) * globalScale * centeringScale < 1 ){
//logger("[drawRule]return");
return;
}
var shape :Object = chooseShape( ruleName );
drawShape( shape, mtx, color, priority );
}
private function chooseShape( ruleName :String ) :Object {
// Choose which rule to go with...
//logger("[chooseShape]ruleName: "+ruleName);
var choices :Array = compiled[ ruleName ];
if ( ! choices ) { throw("no rule found for "+ruleName); }
var sum :Number = 0;
for( var i :int=0; i<choices.length; i++) {
sum += choices[i].weight;
}
var shape :Object;
var r :Number = Math.random() * sum;
sum = 0;
for( i=0; i <= choices.length-1; i++) {
sum += choices[i].weight;
if( r <= sum ){
shape = choices[i];
break;
}
}
if ( ! shape ) { throw("chooseShape failed, rule: "+ruleName+" invalid"); }
return shape;
}
private function drawShape( shape :Object, mtx :Matrix, color :Color, priority :Number = 0 ) :void {
//logger("[drawShape]shape: ",shape, mtx );
var len :int = shape.draw.length;
for ( var i :int = 0; i < len; i++ ) {
var adj :Adjustment = shape.draw[ i ];
var localTransform :Matrix = mtx.clone();
localTransform = adjustTransform( adj, localTransform );
var localColor :Color = adjustColor( adj, color );
switch( adj.name ){
case "CIRCLE":
drawCIRCLE( localTransform, localColor );
break;
case "SQUARE":
drawSQUARE( localTransform, localColor );
break;
case "TRIANGLE":
drawTRIANGLE( localTransform, localColor );
break;
default:
var args :Array = [ adj.name, localTransform, localColor ];
if( priority == 1 ){ queue.unshift( args ); }
else{ queue.push( args ); }
break;
}
}
}
private function drawCIRCLE( transform :Matrix, color :Color ) :void {
var sh :Shape = new Shape;
sh.graphics.beginFill.apply( null, colorToRgba(color) );
sh.graphics.drawCircle( 0, 0, globalScale * 0.5 );
sh.transform.matrix = transform;
container.addChild( sh );
}
private function drawSQUARE( transform :Matrix, color :Color ) :void {
var sh :Shape = new Shape;
sh.graphics.beginFill.apply( null, colorToRgba( color ) );
sh.graphics.drawRect( - globalScale * 0.5, - globalScale * 0.5, globalScale, globalScale );
sh.transform.matrix = transform;
container.addChild( sh );
}
private function drawTRIANGLE( transform :Matrix, color :Color ) :void {
var sh :Shape = new Shape;
sh.graphics.beginFill.apply( null, colorToRgba( color ) );
// 1,2,sqrt(3)
sh.graphics.drawTriangles(
Vector.<Number>([
-globalScale * 0.5, Math.sqrt(3) * globalScale / 6,
+globalScale * 0.5, Math.sqrt(3) * globalScale / 6,
0, - Math.sqrt(3) * globalScale / 3]),
Vector.<int>([0,1,2])
);
sh.transform.matrix = transform;
container.addChild( sh );
}
private function drawBackground() :void {
if ( compiled.background ) {
var colorAdj :Adjustment = compiled.background;
var backgroundColor :Color = new Color;
backgroundColor.b = 1; // { h:0, s:0, b:1, a:1 };
var color :Color = adjustColor( colorAdj, backgroundColor );
var color_alpha :Array = colorToRgba( color );
logger("[drawBackground]color: ",color, backgroundColor,color_alpha);
var bg :Shape = new Shape;
bg.graphics.beginFill( color_alpha[0], color_alpha[1] );
bg.graphics.drawRect( 0, 0, width, height );
background.addChild( bg );
}
}
// order: move rotate scale
private function adjustTransform( adjs :Adjustment, base :Matrix ) :Matrix {
//logger("[adjustTransform][0]adjs: ",adjs," base: ",base);
var mtx :Matrix = new Matrix;
// Flip around a line through the origin;
if ( adjs.flipDefined ){
var flip :Number = adjs.flip;
// Flip 0 means to flip along the X axis. Flip 90 means to flip along the Y axis.
// That's why the flip vector (vX, vY) is Pi/2 radians further along than expected.
var vX :Number = Math.cos( -2*Math.PI * flip / 360 );
var vY :Number = Math.sin( -2*Math.PI * flip / 360 );
var norm :Number = 1/(vX*vX + vY*vY);
//var flip :Matrix = new Matrix((vX*vX-vY*vY)/norm, 2*vX*vY/norm, 2*vX*vY/norm, (vY*vY-vX*vX)/norm, 0, 0);
mtx.a = (vX*vX-vY*vY)/norm;
mtx.b = 2*vX*vY/norm;
mtx.c = 2*vX*vY/norm;
mtx.d = (vY*vY-vX*vX)/norm;
}
// Scaling
var sizeX :Number = adjs.sizeX;
var sizeY :Number = adjs.sizeY;
if ( sizeX || sizeY ) {
mtx.scale( sizeX, sizeY );
}
// Rotation
var r :Number = adjs.rotate;
if ( r != 0 ) {
mtx.rotate( - Math.PI * r / 180 );
}
// Tranalsation
var x :Number = adjs.x;
var y :Number = -adjs.y;
if ( x != 0 || y != 0 ) {
var point :Point = new Point( x * globalScale, y * globalScale );
mtx.translate( point.x, point.y );
}
mtx.concat( base );
//logger("[adjustTransform][9]mtx: ",mtx);
return mtx;
}
private function colorToRgba( color :Color ) :Array {
return hsl2rgb( color.h, color.s, color.b, color.a );
}
// hue, saturation, brightness, alpha
// hue: [0,360) default 0
// saturation: [0,1] default 0
// brightness: [0,1] default 1
// alpha: [0,1] default 1
private function hsl2rgb(h :Number, s :Number, l :Number, a :Number) :Array {
if (h == 360){ h = 0;}
//
// based on C code from http://astronomy.swin.edu.au/~pbourke/colour/hsl/
//
while (h < 0){ h += 360; }
while (h > 360){ h -= 360; }
var r :Number, g :Number, b :Number;
if (h < 120){
r = (120 - h) / 60;
g = h / 60;
b = 0;
}else if (h < 240){
r = 0;
g = (240 - h) / 60;
b = (h - 120) / 60;
}else{
r = (h - 240) / 60;
g = 0;
b = (360 - h) / 60;
}
r = Math.min(r, 1);
g = Math.min(g, 1);
b = Math.min(b, 1);
r = 2 * s * r + (1 - s);
g = 2 * s * g + (1 - s);
b = 2 * s * b + (1 - s);
if (l < 0.5){
r = l * r;
g = l * g;
b = l * b;
}else{
r = (1 - l) * r + 2 * l - 1;
g = (1 - l) * g + 2 * l - 1;
b = (1 - l) * b + 2 * l - 1;
}
r = Math.ceil(r * 255);
g = Math.ceil(g * 255);
b = Math.ceil(b * 255);
// Putting a semicolon at the end of an rgba definition
// causes it to not work.
//return "rgba(" + r + ", " + g + ", " + b + ", " + a + ")";
// <uint>,<Number> to do: graphics.beginFill.apply( null, color.split(',') )
return [ (r * 256*256 + g * 256 + b), a ];
}
// hsba to hsba
private function adjustColor( adjs :Adjustment, color :Color ) :Color {
// See http://www.contextfreeart.org/mediawiki/index.php/Shape_adjustments
var newColor :Color = new Color;
newColor.h = color.h;
newColor.s = color.s;
newColor.b = color.b;
newColor.a = color.a;
// Add num to the drawing hue value, modulo 360
newColor.h += adjs.hue;
newColor.h %= 360;
// If adj<0 then change the drawing [blah] adj% toward 0.
// If adj>0 then change the drawing [blah] adj% toward 1.
if ( adjs.saturation != 0 ) {
if( adjs.saturation > 0 ){
newColor.s += adjs.saturation * (1-color.s);
} else {
newColor.s += adjs.saturation * color.s;
}
}
if ( adjs.brightness != 0 ) {
if( adjs.brightness > 0 ){
newColor.b += adjs.brightness * (1-color.b);
} else {
newColor.b += adjs.brightness * color.b;
}
}
if ( adjs.alpha != 0 ) {
if( adjs.alpha > 0 ){
newColor.a += adjs.alpha * (1-color.a);
} else {
newColor.a += adjs.alpha * color.a;
}
}
return newColor;
}
public function clearQueue() :void {
queue = new Array;
}
private function logger(... args) :void {
if ( 1 ) {
return;
}
log.apply(null, (new Array("[Renderer]", this)).concat(args));
}
}
//}
//package jp.maaash.contextfreeart {
//public class Color {
class Color {
public var h :Number = 0;
public var s :Number = 0;
public var b :Number = 0;
public var a :Number = 1;
public function Color(){
}
}
//}
//package jp.maaash.contextfreeart {
//public class Adjustment{
class Adjustment{
public var name :String;
public var flipDefined :Boolean = false;
public var flip :Number;
public var sizeX :Number = 1;
public var sizeY :Number = 1;
public var rotate :Number = 0;
public var x :Number = 0;
public var y :Number = 0;
public var hue :Number = 0;
public var saturation :Number = 0;
public var brightness :Number = 0;
public var alpha :Number = 0;
public function Adjustment() {
}
public function fill( obj :Object ) :void {
for( var key :String in obj ){
switch( key ) {
case "f":
case "flip":
flipDefined = true;
flip = obj[key];
break;
case "s":
case "size":
var size :* = obj[key];
if ( typeof(size) == "number" ) { size = [size,size]; }
sizeX = size[0];
sizeY = size[1];
break;
case "r":
rotate = obj[key];
break;
case "h":
hue = obj[key];
break;
case "sat":
saturation = obj[key];
break;
case "b":
brightness = obj[key];
break;
case "a":
alpha = obj[key];
break;
case "rotate":
case "x":
case "y":
case "hue":
case "saturation":
case "brightness":
case "alpha":
this[key] = obj[key];
break;
default:
throw("unsupported adjustment: "+key);
}
}
}
}
//}
//package jp.maaash.contextfreeart.state {
//import jp.maaash.contextfreeart.Compiler;
//public class Rule implements IState {
class Rule implements IState {
public function Rule(){
}
public function eat( token :String, compiler :Compiler ) :Array {
var ruleName :String = token;
// Create a blank rule if it doesn't aleady exist
if ( ! compiler.compiled[ ruleName ] ) {
compiler.compiled[ ruleName ] = [];
}
return [ "ruleWeight", ruleName ];
}
}
//}
//package jp.maaash.contextfreeart.state {
//import jp.maaash.contextfreeart.Compiler;
//public class RuleDraw implements IState {
class RuleDraw implements IState {
private var weight :Number = 1;
private var ruleName :String;
public function RuleDraw( args :Array ) {
ruleName = args[0];
}
public function eat( token :String, compiler :Compiler ) :Array {
if( token == "}" ){
return [ "general" ];
}
return [ "shapeAdjustment", token, ruleName ];
}
}
//}
//package jp.maaash.contextfreeart.state {
//import jp.maaash.contextfreeart.Compiler;
//public class Startshape implements IState {
class Startshape implements IState {
public function Startshape() {
}
public function eat( token :String, compiler :Compiler ) :Array {
// uppercase the 1st char
compiler.compiled[ "startshape" ] = token;
return [ "general" ];
}
}
//}
//package jp.maaash.contextfreeart.state {
//import jp.maaash.contextfreeart.Compiler;
//public class AbstractArgument implements IState {
class AbstractArgument implements IState {
protected var curKey :String = null;
protected var curValues :Array = [];
protected var obj :Object = {};
protected var compiler :Compiler;
public function AbstractArgument(){
}
public function eat( token :String, _compiler :Compiler ) :Array {
compiler = _compiler;
switch ( token ) {
case "}":
flushKey();
return onDone( obj );
case "{":
return null;
}
// If it's a keyword name...
if( token.match(/[a-z_]+/i) ) {
flushKey();
curKey = token;
curValues = [];
}
// Otherwise it's a value (and hence a number)
else {
curValues.push( parseFloat(token) );
}
return null;
}
protected function onDone( obj :Object ) :Array { return null; } // abstract
protected function flushKey() :void {
if ( curKey ) {
// If there is only one value for the key, we don't need to wrap
// it in an array.
if ( curValues.length == 1 ) {
obj[ curKey ] = curValues[0];
}
else {
obj[ curKey ] = curValues;
}
}
}
}
//}
//package jp.maaash.contextfreeart.state {
//import jp.maaash.contextfreeart.Compiler;
//import jp.maaash.contextfreeart.Adjustment;
//public class Background extends AbstractArgument {
class Background extends AbstractArgument {
public function Background() {
}
override protected function onDone( obj :Object ) :Array {
var adj :Adjustment = new Adjustment;
adj.fill( obj );
compiler.compiled[ "background" ] = adj;
compiler = null;
return [ "general" ];
}
}
//}
//package jp.maaash.contextfreeart.state {
//import jp.maaash.contextfreeart.Compiler;
//import jp.maaash.contextfreeart.Adjustment;
//public class ShapeAdjustment extends AbstractArgument {
class ShapeAdjustment extends AbstractArgument {
private var name :String;
private var ruleName :String;
public function ShapeAdjustment( args :Array ) {
name = args[0];
ruleName = args[1];
}
override protected function onDone( obj :Object ) :Array {
trace(this + ".onDone(obj :Object ) : " + obj );
var shape :Adjustment = new Adjustment();
shape.name = name;
shape.fill( obj );
// We are always adding to the lastest rule we've created.
var last :int = compiler.compiled[ ruleName ].length - 1;
compiler.compiled[ ruleName ][ last ].draw.push( shape )
compiler = null;
return [ "ruleDraw", ruleName ];
}
}
//}
//package jp.maaash.contextfreeart.state {
//import jp.maaash.contextfreeart.Compiler;
//public interface IState {
interface IState {
function eat( token :String, compiler :Compiler ) :Array;
}
//}
//package jp.maaash.contextfreeart.state {
//import jp.maaash.contextfreeart.Compiler;
//public class RuleWeight implements IState {
class RuleWeight implements IState {
private var weight :Number = 1;
private var ruleName :String;
public function RuleWeight( args :Array ) {
ruleName = args[0];
}
public function eat( token :String, compiler :Compiler ) :Array {
if ( token != "{" ) {
weight = parseFloat( token );
return null;
}
else {
// "{"
compiler.compiled[ ruleName ].push({ weight: weight, draw: [] });
return [ "ruleDraw", ruleName ];
}
}
}
//}
//package jp.maaash.contextfreeart.state {
//import jp.maaash.contextfreeart.Compiler;
//public class General implements IState {
class General implements IState {
public function General(){
}
public function eat( token :String, compiler :Compiler ) :Array {
return [ token ];
}
}
//}