forked from: forked from: forked from: forked from: Sand Button
/**
* Copyright evianmuji ( http://wonderfl.net/user/evianmuji )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/LPBF
*/
// forked from evianmuji's forked from: forked from: forked from: Sand Button
// forked from evianmuji's forked from: forked from: Sand Button
// forked from sr_forest's forked from: Sand Button
// forked from nondelion's Sand Button
package {
import flash.display.Sprite;
import flash.utils.setTimeout;
[SWF(width=465, height=465, backgroundColor=0xC0DB94, frameRate=60)]
public class Main extends Sprite
{
private static const TEXTCOLOR:uint = 0x4D7A03;
private static const BGCOLOR:uint = 0xC0DB94;
private static const LABEL_ARRAY:Array = ["HOME中文","一般顯示","全螢幕顯示","CONTACT"];
public function Main()
{
init();
}
private function init():void
{
for(var i:int=0; i<4; i++) {
var btn:SandButton = new SandButton(LABEL_ARRAY[i],30,TEXTCOLOR,BGCOLOR,false);
btn.y = 40*i + 160;
btn.x = 120;
addChild(btn);
setTimeout(btn.appearMotion, 40*(i+1));
}
}
}
}
import flash.display.Sprite;
import flash.display.BitmapData;
import flash.display.Bitmap;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
import flash.geom.Rectangle;
import flash.geom.Point;
import flash.filters.BlurFilter;
class SandButton extends Sprite
{
private static const APPEAR_RANGE:Number = 100;
private static const TAIL_LENGTH:Number = 30;
private static const DISTANCE:Number = 500;
private var bd:BitmapData;
private var canvas:BitmapData;
private var particles:Particle;
private var pnum:uint = 0;
private var _setup:Boolean;
public function SandButton(buttonLabel:String, size:Number, textColor:uint, bgColor:uint, setup:Boolean)
{
_setup = setup;
var tf:TextField = new TextField();
tf.defaultTextFormat = new TextFormat('Helvetica', size, textColor, false);
tf.autoSize = TextFieldAutoSize.LEFT;
tf.text = buttonLabel;
bd = new BitmapData(tf.width+TAIL_LENGTH, tf.height, true, bgColor+(0xff<<24));
bd.lock();
bd.fillRect(new Rectangle(tf.width,0,TAIL_LENGTH,tf.height),0x0);
bd.draw(tf);
var prev:Particle = particles = new Particle();
var p:Particle;
for (var i:int=0; i < tf.width; i++) {
for (var j:int=0; j < tf.height; j++) {
var color:uint = bd.getPixel(i, j);
if ( color != bgColor ) {
p = new Particle();
p.x = i;
p.y = j;
p.sx = (Math.random()+1)*(i+1)*200 + DISTANCE;
p.sy = p.y;
p.cx = p.sx;
p.cy = p.sy;
p.vx = 2 + Math.random()*i/200;
p.vy = 2;
p.color = color;
prev.next = p;
prev = p;
pnum++;
} else {
bd.setPixel32(i, j, 0x0);
}
}
}
bd.unlock();
if( _setup ) {
addChild( new Bitmap( bd ) );
initEvent();
}
}
private function initEvent():void
{
var over:Sprite = new Sprite();
over.graphics.beginFill(0x0, 0);
over.graphics.drawRect(0,0,bd.width,bd.height);
over.graphics.endFill();
addChild( over );
over.addEventListener( MouseEvent.MOUSE_OVER, clickHandler );
}
public function appearMotion():void
{
if( !_setup ) {
bd.fillRect(bd.rect,0x0);
addChild( new Bitmap( bd ) );
initEvent();
}
motion();
}
private function clickHandler(e:Event):void
{
motion();
}
private function motion():void
{
var p:Particle = particles;
while((p = p.next) != null) {
p.cx = p.sx;
p.cy = p.sy;
}
if( !hasEventListener( Event.ENTER_FRAME ) ) {
addEventListener( Event.ENTER_FRAME, update );
}
}
private function update(e:Event):void
{
var num:int = 0;
var p:Particle = particles;
bd.lock();
bd.fillRect(bd.rect, 0x0);
while((p = p.next) != null) {
var r:Number = Math.sqrt((p.x-p.cx)*(p.x-p.cx) + (p.y-p.cy)*(p.y-p.cy));
p.cx += (p.x - p.cx )/p.vx;
p.cy += (p.y - p.cy )/p.vy;
if ( Math.abs( p.cx - p.x ) <= 1 && Math.abs( p.cy - p.y) <= 1) {
p.cx = p.x;
p.cy = p.y;
num++;
}
var a:uint = r < APPEAR_RANGE ? (1-r/APPEAR_RANGE)*255 : 0;
var c:uint = p.color + (a << 24);
bd.setPixel32(p.cx, p.cy, c);
}
bd.unlock();
if(pnum == num) {
e.target.removeEventListener(Event.ENTER_FRAME,arguments.callee);
}
}
}
class Particle
{
public var color:int;
public var x:Number;
public var y:Number;
public var cx:Number;
public var cy:Number;
public var sx:Number;
public var sy:Number;
public var vx:Number;
public var vy:Number;
public var next:Particle;
public function Particle()
{
}
}