forked from: 【AS100本ノック】4回目：オータム（秋）
AS100本ノック
* 4回目のお題は「オータム（秋）」
* あなたなりの「オータム（秋）」を表現してください。
* --
* ごめんなさい。葉っぱが不自然に落ちるだけです。
/**
* Copyright mex_ichikawa ( http://wonderfl.net/user/mex_ichikawa )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/f0xv
*/
/*
* AS100本ノック
* 4回目のお題は「オータム（秋）」
* あなたなりの「オータム（秋）」を表現してください。
* --
* ごめんなさい。葉っぱが不自然に落ちるだけです。
*/
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Loader;
import flash.display.Sprite;
import flash.events.Event;
import flash.events.TimerEvent;
import flash.net.URLRequest;
import flash.system.LoaderContext;
import flash.utils.Timer;
[SWF(width=465, height=465, backgroundColor=0xFFFFFF, frameRate=30)]
public class Autumn extends Sprite
{
private static const REQUEST_IMAGE:String="http://farm4.static.flickr.com/3240/3006458129_94629d78ee.jpg";
public static const STAGE_WIDTH:uint = 465;
public static const STAGE_HEIGHT:uint = 465;
private var _timer:Timer;
private var _imgLoader:Loader;
public function Autumn()
{
init();
}
private function init():void
{
var request:URLRequest = new URLRequest(REQUEST_IMAGE);
var context:LoaderContext = new LoaderContext(true);
_imgLoader = new Loader();
_imgLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, completeHandler);
try
{
_imgLoader.load(request, context);
} catch (error:Error) {
trace("image load failed.");
}
}
private function completeHandler(event:Event):void
{
var bmd:BitmapData, bm:Bitmap;
bmd = new BitmapData(_imgLoader.width, _imgLoader.height, true, 0x00FFFFFF);
bmd.draw(_imgLoader);
bm = new Bitmap(bmd);
if(bm.width > bm.height)
{
bm.width = STAGE_WIDTH * (STAGE_HEIGHT / bm.height);
bm.height = STAGE_HEIGHT;
}
else
{
bm.height = STAGE_HEIGHT * (STAGE_WIDTH / bm.width);
bm.width = STAGE_WIDTH;
}
addChild(bm);
_timer = new Timer(500, 0);
_timer.addEventListener(TimerEvent.TIMER, timerHandler);
_timer.start();
}
private function timerHandler(event:TimerEvent=null):void
{
var s:Sprite = new Leaf();
this.addChild(s);
}
}
}
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Loader;
import flash.events.Event;
import flash.net.URLRequest;
import flash.display.Sprite;
import flash.system.LoaderContext;
import org.libspark.betweenas3.BetweenAS3;
import org.libspark.betweenas3.easing.*;
import org.libspark.betweenas3.events.*;
import org.libspark.betweenas3.tweens.ITween;
class Leaf extends Sprite {
private static const REQUEST_IMAGE:String="http://farm3.static.flickr.com/2556/4066961851_b67484925f_o.png";
private static const MOVE_WIDTH:uint = 400;
private static const MOVE_HEIGHT:uint = 200;
private static const MARGIN_HEIGHT:uint = 150;
private static const DELETE_TIME:uint = 30;
private static const MOVE_TIME:uint = 3;
private static var BMD:BitmapData;
private var _imgLoader:Loader;
private var _sizeX:int;
private var _sizeY:int;
private var _time:Number;
private var _ITween:ITween;
private var _preX:Number;
private var _preY:Number;
private var _dropFlg:Boolean;
public function Leaf()
{
init();
}
public function init():void
{
x = Math.random() * Autumn.STAGE_WIDTH;
y = Math.random() * -Autumn.STAGE_HEIGHT;
_sizeX = (Math.random() + 0.5) * MOVE_WIDTH * (Math.random() > 0.5 ? -1 : 1);
_sizeY = MOVE_HEIGHT;
_time = (Math.random() + 0.5) * MOVE_TIME;
if(Leaf.BMD)
{
completeHandler();
}
else
{
var request:URLRequest = new URLRequest(REQUEST_IMAGE);
var context:LoaderContext = new LoaderContext(true);
_imgLoader = new Loader();
_imgLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, completeHandler);
try
{
_imgLoader.load(request, context);
} catch (error:Error) {
trace("image load failed.");
}
}
}
private function completeHandler(event:Event=null):void
{
if(!Leaf.BMD)
{
var bmd:BitmapData = new BitmapData(_imgLoader.width, _imgLoader.height, true, 0x00FFFFFF);
bmd.draw(_imgLoader);
Leaf.BMD = bmd;
}
var bm:Bitmap = new Bitmap(Leaf.BMD);
bm.scaleX = bm.scaleY = (Math.random() * 0.4 + 0.8);
bm.x = bm.width / 2;
bm.y = bm.height / 2;
addChild(bm);
playTween();
}
private function playTween(event:TweenEvent=null):void
{
var _t:ITween = makeTween();
if(_dropFlg)
{
_t.addEventListener(TweenEvent.COMPLETE, dropLeaf);
}
else
{
_t.addEventListener(TweenEvent.COMPLETE, playTween);
_t.addEventListener(TweenEvent.UPDATE, updateAngle);
}
_t.play();
}
private function updateAngle(event:TweenEvent):void
{
var dx:Number = (_sizeX > 0 ? x - _preX : _preX - x);
var dy:Number = (_sizeX > 0 ? y - _preY : _preY - y);
// var dr:Number = Math.atan2(dy, dx) * 180 / Math.PI;
_preX = x;
_preY = y;
}
private function makeTween():ITween
{
_sizeX *= -1;
var tgX:int = x + _sizeX;
var tgY:int = y + (_sizeY * (Math.random() * 0.4 + 0.8));
var _t:ITween = BetweenAS3.parallel(
BetweenAS3.tween(
this,
{x: tgX},
null,
_time,
Sine.easeInOut
),
BetweenAS3.tween(
this,
{y: tgY},
null,
_time,
Back.easeInOut
)
);
if(tgY > Autumn.STAGE_HEIGHT - MARGIN_HEIGHT)
{
_t = BetweenAS3.serial(
_t,
BetweenAS3.tween(
this,
{alpha: 0},
null,
DELETE_TIME,
Sine.easeInOut
)
);
_dropFlg = true;
}
return _t;
}
private function dropLeaf(event:TweenEvent):void
{
this.parent.removeChild(this);
}
}