forked from: Water Particles
ドラッグすると水出るようにした。ぐるぐる回すとたのしいです
// forked from yd_niku's Water Particles
// ドラッグすると水出るようにした。ぐるぐる回すとたのしいです
package {
import flash.display.*;
import flash.events.*;
import flash.geom.*;
import flash.text.*;
import flash.filters.*;
import caurina.transitions.Tweener;
[SWF(backgroundColor="#FFFFFF", frameRate=40)]
public class FlashTest extends Sprite {
private var _particles:Array = [];
private var _label:TextField;
private var _bmp:BitmapData;
private var _container:Sprite;
private var _filter:BitmapFilter= new ColorMatrixFilter([
1, 0, 0, 0.1, 0,
0, 1, 0, 0.2, 0,
0, 0, 1, 0, 0,
0, 0, 0, 0.5, 0
]);
private static const O:Point = new Point();
public function FlashTest() {
_bmp = new BitmapData( stage.stageWidth, stage.stageHeight, true, 0x00FFFFFF );
addChild( new Bitmap(_bmp) );
_container = new Sprite();
addChild( _container );
var rect :Sprite= new Rect( stage.stageWidth, stage.stageHeight );
addChild( rect );
rect.addEventListener( MouseEvent.MOUSE_DOWN, startWater );
rect.addEventListener( MouseEvent.MOUSE_UP, stopWater );
rect.addEventListener( MouseEvent.CLICK, removeText );
rect.buttonMode = true;
rect.useHandCursor = true;
addEventListener( Event.ENTER_FRAME, onUpdate );
var t:TextField = new TextField();
t.mouseEnabled = false;
t.width = 200;
t.defaultTextFormat = new TextFormat("_sans", 12, 0x333366 );
t.text = "Please drag to create particles.";
t.x = ( stage.stageWidth - t.width ) *0.5;
t.y = ( stage.stageHeight- t.height ) *0.5;
t.alpha = 0;
_label = t;
addChild( t );
Tweener.addTween( t, { alpha : 1, time:2, delay:0.3, transition:"easeInOutSine" } );
}
private function removeText( e:Event ):void {
e.currentTarget.removeEventListener( e.type, arguments.callee );
if( _label ) Tweener.addTween( _label, { alpha : 0, time:2, delay:0.3, transition:"easeInOutSine", onComplete: onRemoveLabel } );
}
private function startWater ( e:Event ):void {
addEventListener( Event.ENTER_FRAME, shot );
}
private function stopWater ( e:Event ):void {
removeEventListener( Event.ENTER_FRAME, shot );
}
private function shot( e:Event = null ) :void {
var num:uint = 3;
var p:Particle;
var o:Vector3D = new Vector3D( mouseX, mouseY, -10 );
for( var i:int=0; i<num;++i ) {
p = new Water(
Math.random()*6+1,
o.x +Math.random()*6-3, o.y+Math.random()*6-3, o.z,
Math.random()*5-10, Math.random()*-6-20, 15 );
_container.addChild(p);
_particles.push( p );
}
}
private function onRemoveLabel ():void {
removeChild( _label );
_label = null;
}
private function onUpdate( e:Event ):void {
var num:uint = _particles.length;
var p:Particle;
for( var i:int=0; i<num;++i ) {
p = _particles[ i ] as Particle;
if( p.checkLife() ) {
p.update();
}
else {
if( contains(p) ) _container.removeChild( p );
}
}
_bmp.draw( _container );
_bmp.applyFilter( _bmp, _bmp.rect, O, _filter );
}
}
}
import flash.display.*;
import flash.geom.*;
class Particle extends Sprite {
public static const G:Number = 1;
public static const FRICTION_X:Number = 0.96;
public static const FRICTION_Y:Number = 0.96;
public static const FRICTION_Z:Number = 0.96;
public var mass:Number=1;
public var vx:Number=0;
public var vy:Number=0;
public var vz:Number=0;
public static var LIMIT_Y:Number = 500;
public function Particle (
smass:Number = 1,
sx:Number=0, sy:Number = 0, sz:Number = 0,
svx:Number=0, svy:Number=0, svz:Number = 0
) {
mass = smass;
x = sx;
y = sy;
z = sz,
vx = svx;
vy = svy;
vz = svz;
}
public function update():void {
vy += G;
vx *= FRICTION_X;
vy *= FRICTION_Y;
vz *= FRICTION_Z;
x += vx*mass;
y += vy*mass;
z += vz*mass;
if( y >= LIMIT_Y) {
vy *= -0.5;
y += vy;
}
}
public function checkLife() :Boolean {
var v:Vector3D = new Vector3D( vx, vy, vz );
return v.length > 1;
}
}
class Water extends Particle {
public function Water( weight:Number, sx:Number=0, sy:Number = 0, sz:Number = 0, svx:Number=0, svy:Number=0, svz:Number=0 ) {
super( weight*0.05+0.4, sx, sy, sz, svx, svy, svz );
graphics.lineStyle( 0, 0x6686ff, 0.4+Math.random()*0.2 );
graphics.beginFill( 0x99ccff, Math.random()*0.2 );
graphics.drawCircle( 0, 0, weight );
graphics.endFill();
}
}
class Rect extends Sprite {
public function Rect( w:uint= 100, h:uint = 100 ) {
graphics.beginFill( 0, 0 );
graphics.drawRect( 0, 0, w, h );
graphics.endFill();
}
}