粒子特效

破晓 · 发表于 2015-7-15 14:48:30

package
{
import com.actionsnippet.qbox.QuickBox2D;
import com.actionsnippet.qbox.QuickObject;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BlendMode;
import flash.display.MovieClip;
import flash.display.Sprite;
import flash.events.Event;
import flash.filters.BlurFilter;
import flash.geom.Matrix;
import flash.geom.Point;
import frocessing.color.ColorHSV;
import idv.cjcat.stardust.common.clocks.SteadyClock;
import idv.cjcat.stardust.twoD.actions.waypoints.Waypoint;
import idv.cjcat.stardust.twoD.renderers.PixelRenderer;
import idv.cjcat.stardust.twoD.zones.CircleZone;
import net.hires.debug.Stats;
/**
* Waypointのテスト
* @author paq89
*/
[SWF(width=465, height=465, backgroundColor=0x000000, frameRate=60)]
public class Main extends Sprite
{
static private const ZERO_POINT:Point = new Point();
static private const BLUR:BlurFilter = new BlurFilter();
static private const WAYPOINT_COUNT:uint = 7;
private var _emitter:WaypointsEmitter;
private var _waypoints:/*Waypoint*/Array;
private var _circles:/*QuickObject*/Array;
private var _canvas:BitmapData;
private var _blurEffect:BitmapData;
private var _hsv:ColorHSV;
private var _matrix:Matrix;
private var _kirakira:BitmapData;
public function Main():void
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
// 変数を初期化
_hsv = new ColorHSV(0, 0.7);
_waypoints = []
_circles = [];
// 背景
graphics.beginFill(0x000000); graphics.drawRect(0, 0, 465, 465);
// パーティクルを表示するビットマップを作成
_canvas = new BitmapData(465, 465, true, 0x00000000);
_blurEffect = new BitmapData(465, 465, true, 0x00000000);
addChild(Bitmap(new Bitmap(_blurEffect)));
addChild(Bitmap(new Bitmap(_canvas)));
// QuickBox2D
initQuickBox2D();
// Stardust
initStardust();
// キラキラエフェクト
_kirakira = new BitmapData(465 / 4, 465 / 4, false, 0x000000);
var bmp:Bitmap = new Bitmap(_kirakira, "never", true);
bmp.scaleX = bmp.scaleY = 4;
bmp.smoothing = true;
bmp.blendMode = BlendMode.ADD;
addChild(bmp);
_matrix = new Matrix(0.25, 0, 0, 0.25);
// イベントリスナー
addEventListener(Event.ENTER_FRAME, loop);
}
/*
* Stardust
*/
private function initStardust():void
{
// パーティクルシステムの構築
_emitter = new WaypointsEmitter(new SteadyClock(0.7), _waypoints);
var renderer:PixelRenderer = new PixelRenderer(_canvas);
renderer.addEmitter(_emitter);
}
/*
* QuickBox2D
*/
private function initQuickBox2D():void
{
var mc:MovieClip = MovieClip(addChildAt(new MovieClip, 1));
mc.buttonMode = true;
var qbox:QuickBox2D = new QuickBox2D(mc, { gravityY:0 } );
qbox.setDefault( { lineColor:0xFFFFFF, fillAlpha:0 } );
qbox.addBox( { x:-1.5, y:7.75, width:3, height: 15.5, density:0} );
qbox.addBox( { x:17, y:7.75, width:3, height: 15.5, density:0 } );
qbox.addBox( { x:7.75, y:-1.5, width:15.5, height: 3, density:0 } );
qbox.addBox( { x:7.75, y:17, width:15.5, height: 3, density:0 } );
qbox.start();
qbox.mouseDrag();
var hsv:ColorHSV = new ColorHSV(0, 0.7, 1);
for (var i:int = 0; i < WAYPOINT_COUNT; i++)
{
hsv.h = i * (360 / WAYPOINT_COUNT);
var x:int = (Math.random() * 465) >> 0;
var y:int = (Math.random() * 465) >> 0;
var circle:QuickObject = qbox.addCircle( { x:x / 30, y:y / 30, radius:10 / 30, restitution:0.5, lineColor:hsv.value } );
_circles.push(circle);
_waypoints.push(new Waypoint(circle.x*30, circle.y*30));
}
}
/*
* エンターフレームイベント
*/
private function loop(e:Event):void
{
// Waypointの位置を調整
for (var i:int = 0; i < WAYPOINT_COUNT; i++)
{
_waypoints[i].x = _circles[i].x * 30;
_waypoints[i].y = _circles[i].y * 30;
}
CircleZone(_emitter.position.zone).x = _waypoints[0].x;
CircleZone(_emitter.position.zone).y = _waypoints[0].y;
CircleZone(_emitter.deathZone.zone).x = _waypoints[WAYPOINT_COUNT-1].x;
CircleZone(_emitter.deathZone.zone).y = _waypoints[WAYPOINT_COUNT-1].y;
// キラキラエフェクト
_kirakira.fillRect(_kirakira.rect, 0x00000000);
_kirakira.draw(_canvas, _matrix);
// 残像エフェクト
_blurEffect.draw(_canvas);
_blurEffect.applyFilter(_blurEffect, _canvas.rect, ZERO_POINT, BLUR);
_canvas.fillRect(_canvas.rect, 0x00000000);
// パーティクルの色相を変更
_hsv.h++;
_emitter.color.color = _hsv.value32;
// エミッターを更新
_emitter.step();
}
}
}
import idv.cjcat.stardust.common.clocks.Clock;
import idv.cjcat.stardust.common.initializers.Color;
import idv.cjcat.stardust.common.initializers.Mass;
import idv.cjcat.stardust.common.math.UniformRandom;
import idv.cjcat.stardust.twoD.actions.DeathZone;
import idv.cjcat.stardust.twoD.actions.FollowWaypoints;
import idv.cjcat.stardust.twoD.actions.Move;
import idv.cjcat.stardust.twoD.actions.SpeedLimit;
import idv.cjcat.stardust.twoD.emitters.Emitter2D;
import idv.cjcat.stardust.twoD.initializers.Position;
import idv.cjcat.stardust.twoD.zones.CircleZone;
class WaypointsEmitter extends Emitter2D
{
public var color:Color;
public var deathZone:DeathZone;
public var position:Position;
public function WaypointsEmitter(clock:Clock, waypoints:Array)
{
super(clock);
color = new Color();
position = new Position(new CircleZone(0, 0, 20));
deathZone = new DeathZone(new CircleZone(0, 0, 20));
addInitializer(color);
addInitializer(position);
addInitializer(new Mass(new UniformRandom(4, 1)));
addAction(deathZone);
addAction(new FollowWaypoints(waypoints, false, false));
addAction(new Move());
addAction(new SpeedLimit(3));
}
}

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本文来自：http://wonderfl.net/c/6Z8A

lxz · 发表于 2019-2-24 02:32:10

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