forked from: forked from: DotWind
こんな感じですか？？getColorBoundsRect多用してしまったので重いかも。。
煙は正直サボりました
//////////////////////////////////////////////////////////////////////////////
DotWind
砂が竜巻のような動きで舞い上がって、文字を構成し、
すべての文字が表示された後、文字が煙のように消えて行く
...ようにしたいの。
(現状は、砂が舞い上がってるだけ)
[竜巻のような動きは3Dっぽくない方がいい]
//////////////////////////////////////////////////////////////////////////////
/**
* Copyright djakarta_trap ( http://wonderfl.net/user/djakarta_trap )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/a6U2
*/
// forked from cuegraphix's forked from: DotWind
// forked from ProjectNya's DotWind
// こんな感じですか？？getColorBoundsRect多用してしまったので重いかも。。
// 煙は正直サボりました
////////////////////////////////////////////////////////////////////////////////
// DotWind
//
// 砂が竜巻のような動きで舞い上がって、文字を構成し、
// すべての文字が表示された後、文字が煙のように消えて行く
// ...ようにしたいの。
// (現状は、砂が舞い上がってるだけ)
// [竜巻のような動きは3Dっぽくない方がいい]
////////////////////////////////////////////////////////////////////////////////
package {
import flash.display.Sprite;
import flash.display.BitmapData;
import flash.display.Bitmap;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.Rectangle;
import com.bit101.components.InputText;
import com.bit101.components.PushButton;
[SWF(backgroundColor="#FFFFFF", width="465", height="465", frameRate="30")]
public class Main extends Sprite {
private var rect:Rectangle;
private var canvas:BitmapData;
private var wind:Wind;
private static var dots:uint = 20;
private var text:InputText;
private var button:PushButton;
public function Main() {
Wonderfl.capture_delay(8);
init();
}
private function init():void {
rect = new Rectangle(0, 0, 465, 465);
canvas = new BitmapData(rect.width, rect.height, false, 0xFFFFFFFF);
var bitmap:Bitmap = new Bitmap(canvas);
addChild(bitmap);
wind = new Wind(canvas);
text = new InputText(this, 150, 10, "Wonderfl");
button = new PushButton(this, 250, 8, "UPDATE", changeText);
button.width = 60;
wind.setText(text.text);
addEventListener(Event.ENTER_FRAME, draw, false, 0, true);
}
private function draw(evt:Event):void {
wind.create(dots);
canvas.lock();
canvas.fillRect(canvas.rect, 0xFFFFFFFF);
wind.blow();
canvas.unlock();
}
private function changeText(e:Event):void {
wind.setText(text.text);
}
private function clearText(e:Event):void {
wind.burn();
}
}
}
import flash.display.Sprite;
import flash.display.BitmapData;
import flash.events.Event;
import flash.filters.BlurFilter;
import flash.geom.Matrix;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
class Wind extends Sprite {
private var canvas:BitmapData;
private var rect:Rectangle;
private var dots:Array;
private static var acceleration:Number = 0.02;
private var textSource:BitmapData;
private var textBmd:BitmapData;
private var textBurn:BitmapData;
private var burnBlur:BlurFilter;
private var textBounds:Rectangle;
public function Wind(c:BitmapData) {
canvas = c;
init();
}
private function init():void {
rect = canvas.rect;
dots = new Array();
textBmd = new BitmapData(rect.width, rect.height, true, 0x00000000);
burnBlur = new BlurFilter(1.5, 2, 3);
}
public function create(max:uint):void {
var r:int = (Math.random() > 0.5) ? -1 : 1;
for (var n:uint = 0; n < max; n++) {
var px:Number = rect.width*0.5+Math.random()*10*r;
var py:Number = rect.height;
var power:Number = Math.random() + 0.5;
var velocity:Number = Math.random() + 0.5;
var angle:Number = (Math.random()*2 - 1)*Math.PI;
var dot:Dot = new Dot(px, py, power, velocity, angle);
dots.push(dot);
}
}
public function blow():void {
for (var n:uint = 0; n < dots.length; n++) {
var dot:Dot = dots[n];
dot.angle += Math.PI / 180 * 4 * dot.power
dot.rgb = 0x3333bb * Math.sin(dot.angle);
dot.vx = Math.sin(dot.angle);
dot.vy += acceleration*dot.power;
dot.vy *= 0.99;
dot.x += dot.vx;
dot.y -= dot.vy;
// 描画領域のみを走査する
if (textSource && textBounds.contains(dot.x, dot.y)) {
var p:int = textSource.getPixel(dot.x, dot.y);
if (p != 0) {
// ソースからピクセルを消す
textSource.setPixel32(dot.x, dot.y, 0x00000000);
// アンチエイリアス用
var alpha:int = p >> 16;
textBmd.setPixel32(dot.x, dot.y, alpha << 24 + dot.rgb);
// 全部表示された？
if (textSource.getColorBoundsRect(0x0FFFF0000, 0xFFFF0000, true).isEmpty()) {
burn();
}
dots.splice(n, 1);
dot = null;
continue;
}
}
canvas.setPixel(dot.x, dot.y, dot.rgb);
if (dot.x < rect.left) dot.x += rect.width;
if (dot.x > rect.right) dot.x -= rect.width;
if (dot.y < rect.top) {
dots.splice(n, 1);
dot = null;
}
}
canvas.draw(textBmd);
}
public function setText(str:String):void {
burn();
textSource = new BitmapData(rect.width, rect.height, true, 0x00000000);
var txt:TextField = new TextField();
txt.autoSize = TextFieldAutoSize.LEFT;
txt.defaultTextFormat = new TextFormat(null, 48, 0xFF0000);
txt.text = str;
var matrix:Matrix = new Matrix();
// 中心へ移動
matrix.tx = (rect.width - txt.width) * 0.5;
matrix.ty = (rect.height - txt.height) * 0.5;
textSource.draw(txt, matrix);
// 描画領域を取得
textBounds = textSource.getColorBoundsRect(0xFFFF0000, 0xFFFF0000, true);
}
public function burn():void {
if(textSource) {
textBurn = new BitmapData(rect.width, rect.height, true, 0x00000000);
textBurn.draw(textBmd);
textSource.dispose();
textSource = null;
textBounds = new Rectangle();
textBmd.dispose();
textBmd = new BitmapData(rect.width, rect.height, true, 0x00000000);
removeEventListener(Event.ENTER_FRAME, _burn);
canvas.draw(textBurn);
addEventListener(Event.ENTER_FRAME, _burn, false, 0, true);
}
}
private function _burn(e:Event):void {
textBurn.applyFilter(textBurn, textBurn.rect, new Point(), burnBlur);
textBurn.scroll(0, -1);
canvas.draw(textBurn);
// 煙が全部消えたかどうか
if (textBurn.getColorBoundsRect(0xFFFFFFFF, 0x00000000, false).isEmpty()) {
removeEventListener(Event.ENTER_FRAME, _burn);
}
}
}
class Dot {
public var x:Number = 0;
public var y:Number = 0;
public var angle:Number = 0;
public var vx:Number = 0;
public var vy:Number = 0;
public var power:Number = 1;
public var velocity:Number = 1;
public var rgb:uint = 0x000000;
public function Dot(_x:Number, _y:Number, p:Number, v:Number, a:Number):void {
x = _x;
y = _y;
power = p;
velocity = v;
angle = a;
}
}