Stripe forked from: Draw worm by mouse gesture.
帯を引く
package {
import caurina.transitions.Equations;
import caurina.transitions.Tweener;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.ColorTransform;
import flash.geom.Point;
import frocessing.display.F5MovieClip2DBmp;
import frocessing.geom.FMatrix2D;
//帯を引く
[SWF(backgroundColor=0x444444, width=465, height=465)]
public class Matrixtest extends F5MovieClip2DBmp
{
private var vms:Array;
private var MAX_NUM:int = 100;
private var N:Number = 80;
private var px:Number;
private var py:Number;
private var col:uint = 0xFFFFFFFF;
private var ct:ColorTransform = new ColorTransform(1,1,1,1,-4,-4,-4);
private var movePts:Point = new Point(865,100)
public function Matrixtest()
{
stage.frameRate = 60;
colorMode( HSV, 1 );
vms = [];
addEventListener(Event.ADDED_TO_STAGE, addStageHandler);
drawStripe();
}
private function addStageHandler(e:Event):void {
stage.addEventListener(MouseEvent.CLICK, function():void{
drawStripe();
} );
}
private function drawStripe():void {
movePts.x = 965; movePts.y = -20;
Tweener.addTween(movePts,{x:0, time:1, transition:Equations.easeNone});
}
public function setup():void
{
background(0);
noStroke();
px = movePts.x;
py = movePts.y;
scale(0.5, 0.5);
}
//////////////////
/// ////
//// D R A W ////
//// ////
//////////////////
public function draw():void
{
if( isMousePressed ) {
background(0);
vms = [];
}
noStroke();
var len:int = vms.length;
for( var i:int=0; i<len; i++ ) {
var o:WormObject = vms[i];
if( o.count<N ){
drawWorm( o );
o.count++;
}else{
len--;
vms.splice( i, 1 );
i--;
}
}
check();
}
public function check():void
{
var x0:Number = movePts.x;
var y0:Number = movePts.y;
var vx:Number = x0 - px;
var vy:Number = y0 - py;
var len:Number = min( mag( vx, vy ), 80 );
if( len<10 ) return;
var mtx:FMatrix2D = new FMatrix2D();
mtx.rotate( atan2( vy, vx )+270*Math.PI/180 );
//mtx.rotate( 45*Math.PI/180 );
mtx.translate( x0, y0 );
createObj( mtx, len );
stroke(0xFF0000*Math.random())
line( px, py, x0, y0 );
px = x0;
py = y0;
}
public function createObj( mtx:FMatrix2D, len:Number ):void
{
var angle:Number = random(PI/15,PI/6);
if( Math.random()>0.5 )
angle *= -1;
var tmt:FMatrix2D = new FMatrix2D();
tmt.translate( len, len );
var w:Number = 1;
var obj:WormObject = new WormObject();
obj.thin = 1 + 5 * Math.random();
obj.c1x = obj.p1x = -obj.thin * mtx.c + mtx.tx;
obj.c1y = obj.p1y = -obj.thin * mtx.d + mtx.ty;
obj.c2x = obj.p2x = obj.thin * mtx.c + mtx.tx;
obj.c2y = obj.p2y = obj.thin * mtx.d + mtx.ty;
obj.col = color(random(0.95,1), random(0.2,1), random(0.3,1));
obj.vmt = mtx;
obj.tmt = tmt;
obj.r = angle;
obj.w = len/20;
obj.count = 0;
vms.push( obj );
if( vms.length > MAX_NUM )
vms.shift();
}
public function drawWorm( obj:WormObject ):void
{
obj.vmt.prepend( obj.tmt );
var cc1x:Number = -obj.w*obj.vmt.c*obj.thin + obj.vmt.tx;
var cc1y:Number = -obj.w*obj.vmt.d*obj.thin + obj.vmt.ty;
var pp1x:Number = (obj.c1x+cc1x)/2;
var pp1y:Number = (obj.c1y+cc1y)/2;
var cc2x:Number = obj.w*obj.vmt.c*obj.thin + obj.vmt.tx;
var cc2y:Number = obj.w*obj.vmt.d*obj.thin + obj.vmt.ty;
var pp2x:Number = (obj.c2x+cc2x)/2;
var pp2y:Number = (obj.c2y+cc2y)/2;
beginFill( obj.col );
stroke( obj.col );
moveTo( obj.p1x, obj.p1y );
curveTo( obj.c1x, obj.c1y, pp1x, pp1y );
lineTo( pp2x, pp2y );
curveTo( obj.c2x, obj.c2y, obj.p2x, obj.p2y );
closePath();
endFill();
obj.c1x = cc1x;
obj.c1y = cc1y;
obj.p1x = pp1x;
obj.p1y = pp1y;
obj.c2x = cc2x;
obj.c2y = cc2y;
obj.p2x = pp2x;
obj.p2y = pp2y;
}
}
}
import frocessing.geom.FMatrix2D;
class WormObject{
public var c1x:Number;
public var c1y:Number;
public var c2x:Number;
public var c2y:Number;
public var p1x:Number;
public var p1y:Number;
public var p2x:Number;
public var p2y:Number;
public var col:Number;
public var flg:Boolean = false;
public var thin:Number = 1;
public var w:Number;
public var r:Number;
public var count:int;
public var vmt:FMatrix2D;
public var tmt:FMatrix2D;
public function WormObject(){
}
}