flash on 2009-7-15
press to draw heart shapes
/**
* Copyright hacker_muxr01kd ( http://wonderfl.net/user/hacker_muxr01kd )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/icup
*/
//press to draw heart shapes
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import caurina.transitions.Tweener;
import flash.display.BlendMode;
[SWF(width = "465", height = "465", backgroundColor = 0x0, frameRate = "60")]
public class HeartDraw extends Sprite
{
public function HeartDraw():void
{
graphics.beginFill(0);
graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
var isPress:Boolean = false;
stage.addEventListener(MouseEvent.MOUSE_DOWN, function ():void
{
isPress = true;
});
stage.addEventListener(MouseEvent.MOUSE_UP, function ():void
{
isPress = false;
});
addEventListener(Event.ENTER_FRAME, function ():void
{
if(!isPress) return;
var h:HeartSprite = new HeartSprite();
h.blendMode = BlendMode.ADD;
h.x = mouseX;
h.y = mouseY;
h.scaleX *= (Math.random() * 0.5 + 0.75);
h.scaleY *= (Math.random() * 0.5 + 0.75);
h.rotation = (Math.random() - 0.5) * 60,
addChild(h);
Tweener.addTween(h, {
x: h.x + (Math.random() -0.5) * 300,
y: h.y + 200 + Math.random()*300,
scaleX: h.scaleX * 0.2,
scaleY: h.scaleY * 0.2,
rotation: h.rotation * (Math.random() * 1.5 + 1.5),
time: 2.0 + Math.random()*1.5,
transition: "easeInBack",
onComplete: function ():void
{
removeChild(h);
}
});
});
}
}
}
import flash.display.Graphics;
import flash.display.Sprite;
import flash.display.Shape;
import flash.geom.Point;
import caurina.transitions.Tweener;
import flash.filters.BlurFilter;
class HeartSprite
extends Sprite
{
public var t:Number = 0;
public static var trans:Array = [
"easeInOutQuad",
"linear",
"easeInCubic"//,
// "easeOutCubic"
];
private var fillShape:Shape = new Shape();
public function HeartSprite():void
{
scaleY *= -1;
if (Math.random() < 0.5) scaleX *= -1;
var h:HeartSegment = new HeartSegment(Math.random()*50 + 10);
var g:Graphics = graphics;
var g2:Graphics = fillShape.graphics;
var lastT:Number = 0;
var step:Number = 1 / 50;
g.lineStyle(Math.random() * 6 + 2,
(Math.random() * 0x66 + 0x99) << 16 |
(Math.random() * 0x66 + 0x99) << 8 |
(Math.random() * 0x66 + 0x99)
);
//set startPt to random
// t = (Math.random() < 0.5) ? 0 : 0.5;
// lastT = t;
// var pt:Point = h.getValue(t);
// g.moveTo( pt.x, pt.y);
// g2.moveTo(pt.x, pt.y);
g2.beginFill(
(Math.random() * 0x3f + 0xc0) << 16 |
(Math.random() * 0x99) << 8 |
(Math.random() * 0x99)
);
filters = [
new BlurFilter()
];
Tweener.addTween(this, {
t:t+1,
time: 0.5 + Math.random()*1.0,
transition: trans[Math.floor(Math.random()*trans.length)],
onUpdate: function ():void
{
while ((lastT += step) < t)
{
var pt:Point = h.getValue(lastT);
g.lineTo( pt.x, pt.y);
g2.lineTo( pt.x, pt.y);
}
pt = h.getValue(t);
g.lineTo( pt.x, pt.y);
g2.lineTo( pt.x, pt.y);
lastT = t;
},
onComplete: function ():void
{
g.clear();
addChild(fillShape);
fillShape.alpha = 0;
Tweener.addTween(fillShape, {
alpha:1.0,
scaleX: 1.2,
scaleY: 1.2,
time:0.5,
transition: "easeOutQuint"
});
}
});
}
}
class HeartSegment
{
private var len:Number;
private var bss:Array = [];
public function HeartSegment(len:Number = 30):void
{
this.len = len;
//--nodes
//bottom
var n0:Point = new Point(0, 0);
//left top
var n1:Point = Point.polar(len * 2 * (Math.random()* 0.5 +1), Math.PI * (7/12 + Math.random() * 1 / 6));
//top
var n2:Point = new Point((Math.random()-0.5)*len*0.25, len * Math.sqrt(3));
//right top
var n3:Point = Point.polar(len * 2 * (Math.random()* 0.5 +1), Math.PI * (5/12 - Math.random() * 1 / 6));
//--controls
var c10:Number = 0.5 + Math.random() * 1 / 6;
var c11:Number = 0.5 + Math.random() * 1 / 12;
var c20:Number = 0.5 - Math.random() * 1 / 12;
var c21:Number = 0.5 - Math.random() * 1 / 6;
var c00:Number = 0.5 + Math.random() * 1 / 6;
var c01:Number = c10 + 1;
var c30:Number = c21 + 1;
var c31:Number = 0.5 - Math.random() * 1 / 6;
//bezierSegments
bss =
[
new BezierSegment_(
n0,
n0.add(Point.polar(len, Math.PI * c00)),
n1.add(Point.polar(len, Math.PI * c01)),
n1
),
new BezierSegment_(
n1,
n1.add(Point.polar(len, Math.PI * c10)),
n2.add(Point.polar(len, Math.PI * c11)),
n2
),
new BezierSegment_(
n2,
n2.add(Point.polar(len, Math.PI * c20)),
n3.add(Point.polar(len, Math.PI * c21)),
n3
),
new BezierSegment_(
n3,
n3.add(Point.polar(len, Math.PI * c30)),
n0.add(Point.polar(len, Math.PI * c31)),
n0
)
];
}
public function getValue(t:Number):Point
{
t -= Math.floor(t);
t *= bss.length;
var i:int = Math.floor(t);
return BezierSegment_(bss[i]).getValue(t-i);
}
}
/**
* A Bezier segment consists of four Point objects that define a single cubic Bezier curve.
* The BezierSegment class also contains methods to find coordinate values along the curve.
* @playerversion Flash 9.0.28.0
* @langversion 3.0
* @keyword BezierSegment, Copy Motion as ActionScript
* @see ../../motionXSD.html Motion XML Elements
*/
class BezierSegment_
{
public var a:Point;
public var b:Point;
public var c:Point;
public var d:Point;
function BezierSegment_(a:Point, b:Point, c:Point, d:Point)
{
this.a = a;
this.b = b;
this.c = c;
this.d = d;
}
public function getValue(t:Number):Point
{
var ax:Number = this.a.x;
var x:Number = (t*t*(this.d.x-ax) + 3*(1-t)*(t*(this.c.x-ax) + (1-t)*(this.b.x-ax)))*t + ax;
var ay:Number = this.a.y;
var y:Number = (t*t*(this.d.y-ay) + 3*(1-t)*(t*(this.c.y-ay) + (1-t)*(this.b.y-ay)))*t + ay;
return new Point(x, y);
}
}