星描いてみたけどかわいくねぇｗｗforked from: ColorfulRiver
/**
* Copyright TetsuroKato ( http://wonderfl.net/user/TetsuroKato )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/bxi1
*/
// forked from okoi's ColorfulRiver
//
// ColorfulRiver
// 流れていく色の帯を堪能しようず
//
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.Event;
import flash.filters.BlurFilter;
import flash.geom.Point;
[SWF(width="465",height="465")]
/**
* ...
* @author
*/
public class Main extends Sprite
{
private var _lines:/*LineObj*/Array;
private var _sprite:Sprite;
private var _bmd:BitmapData;
private var _ct:int;
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);
// entry point
graphics.beginFill(0);
graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
graphics.endFill();
_bmd = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0);
addChild( new Bitmap(_bmd) );
_sprite = new Sprite();
_sprite.blendMode = "add";
addChild( _sprite );
_lines = new Array();
_ct = 0;
GenerationLine();
addEventListener( Event.ENTER_FRAME, Update );
}
private function GenerationLine() : void
{
var line:LineObj = new LineObj();
var angle:Number = Math.random() * 360;
var speed:Number = 10 + Math.random() * 10;
var moveangle:Number = Math.atan2( (stage.stageHeight / 2 - stage.mouseY), (stage.stageWidth / 2 - stage.mouseX) );
moveangle = moveangle * 180 / Math.PI;
line.Shoot( stage.mouseX, stage.mouseY, angle, speed, moveangle, 1 );
_lines[_lines.length] = line;
}
private function Update(e:Event) : void
{
var i:int = 0;
_ct++;
if ( _ct % 10 == 0 )
{
GenerationLine();
}
for ( i = _lines.length - 1; i >= 0; i-- )
{
if ( !_lines[i].Update() )
{
_lines.splice( i, 1 );
}
}
_sprite.graphics.clear();
for ( i = 0; i < _lines.length; i++ )
{
_lines[i].Draw( _sprite.graphics );
}
_bmd.draw( _sprite );
_bmd.applyFilter( _bmd, _bmd.rect, new Point(), new BlurFilter(8,8,3) );
}
}
}
import flash.display.Graphics;
import flash.geom.Point;
import flash.display.Sprite;
import frocessing.color.ColorHSV;
class Path {
private var _x:Number;
private var _y:Number;
private var _angle:Number;
private var _step:int;
public function get x():Number { return _x; }
public function set x(val:Number) : void { _x = val; }
public function get y():Number { return _y; }
public function set y(val:Number) : void { _y = val; }
public function get angle():Number { return _angle; }
public function set angle(val:Number) : void { _angle = val; }
public function get step():int { return _step; }
public function Path() {
_step = 0;
}
public function Copy( obj:Path ) : void
{
_x = obj.x;
_y = obj.y;
_angle = obj.angle;
_step = obj.step;
}
public function Set( x:Number, y:Number, angle:Number ) : void
{
_x = x;
_y = y;
_angle = angle;
}
public function Step() : void { _step++; }
}
class LineObj {
private var _pos:Point;
private var _move:Point;
private var _power:Point;
private var _path:/*Path*/Array;
private static const PATH_NUM:int = 30;
private var _geneCt:int;
private var _color:ColorHSV;
public function LineObj() {
}
public function Shoot(x:Number, y:Number, angle:Number, speed:Number, moveangle:Number, movepower:Number) : void
{
_pos = new Point(x, y);
_move = new Point( Math.cos( angle * Math.PI / 180 ) * speed, Math.sin( angle * Math.PI / 180 ) * speed );
_power = new Point( Math.cos( moveangle * Math.PI / 180 ) * movepower, Math.sin( moveangle * Math.PI / 180 ) * movepower );
_path = new Array();
_path[0] = new Path();
_path[0].Set( x, y, angle );
_geneCt = 0;
_color = new ColorHSV( Math.random() * 360, 1, 1, 0.5 );
}
public function Update() : Boolean
{
_move.x += _power.x;
_move.y += _power.y;
_pos.x += _move.x;
_pos.y += _move.y;
// Add Path
if ( _geneCt < PATH_NUM )
{
var path:Path = new Path();
path.Copy( _path[_path.length - 1] );
_path[_path.length] = path;
_geneCt++;
}
// Copy
for ( var i:int = _path.length - 1; i >= 1; i-- )
{
_path[i].Copy( _path[i - 1] );
}
if ( _path.length > 0 )
{
_path[0].x += _move.x;
_path[0].y += _move.y;
_path[0].Step();
}
// Delete
if ( _path[0].step == 100 )
{
_path.splice( 0, 1 );
}
if ( _path.length == 0 ) return false;
return true;
}
public function Draw( g:Graphics ) : void
{
if ( _path.length == 0 ) return;
var i:int;
var x:Number;
var y:Number;
g.beginFill( _color.value, _color.a );
x = Math.cos((_path[0].angle - 90) * Math.PI / 180 ) * (2 + _path[i].step * 2);
y = Math.sin((_path[0].angle - 90) * Math.PI / 180 ) * (2 + _path[i].step * 2);
g.moveTo( x + _path[0].x, y + _path[0].y );
for ( i = 1; i < _path.length; i++ )
{
// Left
x = Math.cos((_path[i].angle - 90) * Math.PI / 180 ) * (2 + _path[i].step * 2);
y = Math.sin((_path[i].angle - 90) * Math.PI / 180 ) * (2 + _path[i].step * 2);
g.lineTo( x + _path[i].x, y + _path[i].y );
}
for ( i = _path.length - 1; i >= 0; i-- )
{
// Right
x = Math.cos((_path[i].angle + 90) * Math.PI / 180 ) * (2 + _path[i].step * 2);
y = Math.sin((_path[i].angle + 90) * Math.PI / 180 ) * (2 + _path[i].step * 2);
g.lineTo( x + _path[i].x, y + _path[i].y );
}
// g.endFill();
// ほし
if( _path.length>=6){
// g.beginFill(0);
// g.lineStyle(3, 0);
g.moveTo(_path[0].x, _path[0].y);
x = Math.cos((_path[2].angle - 90) * Math.PI / 180 ) * (1 + _path[2].step*2/3);
y = Math.sin((_path[2].angle - 90) * Math.PI / 180 ) * (1 + _path[2].step*2/3);
g.lineTo( x + _path[2].x, y + _path[2].y );
x = Math.cos((_path[2].angle - 90) * Math.PI / 180 ) * (2 + _path[2].step * 2);
y = Math.sin((_path[2].angle - 90) * Math.PI / 180 ) * (2 + _path[2].step * 2);
g.lineTo( x + _path[2].x, y + _path[2].y );
x = Math.cos((_path[3].angle - 90) * Math.PI / 180 ) * (1 + _path[3].step*2/3);
y = Math.sin((_path[3].angle - 90) * Math.PI / 180 ) * (1 + _path[3].step*2/3);
g.lineTo( x + _path[3].x, y + _path[3].y );
x = Math.cos((_path[5].angle - 90) * Math.PI / 180 ) * (2 + _path[5].step * 4/3);
y = Math.sin((_path[5].angle - 90) * Math.PI / 180 ) * (2 + _path[5].step * 4/3);
g.lineTo( x + _path[5].x, y + _path[5].y );
g.lineTo( (_path[3].x + _path[4].x)/2, (_path[3].y + _path[4].y)/2);
x = Math.cos((_path[5].angle + 90) * Math.PI / 180 ) * (2 + _path[5].step * 4/3);
y = Math.sin((_path[5].angle + 90) * Math.PI / 180 ) * (2 + _path[5].step * 4/3);
g.lineTo( x + _path[5].x, y + _path[5].y );
x = Math.cos((_path[3].angle + 90) * Math.PI / 180 ) * (1 + _path[3].step*2/3);
y = Math.sin((_path[3].angle + 90) * Math.PI / 180 ) * (1 + _path[3].step*2/3);
g.lineTo( x + _path[3].x, y + _path[3].y );
x = Math.cos((_path[2].angle + 90) * Math.PI / 180 ) * (2 + _path[2].step * 2);
y = Math.sin((_path[2].angle + 90) * Math.PI / 180 ) * (2 + _path[2].step * 2);
g.lineTo( x + _path[2].x, y + _path[2].y );
x = Math.cos((_path[2].angle + 90) * Math.PI / 180 ) * (1 + _path[2].step*2/3);
y = Math.sin((_path[2].angle + 90) * Math.PI / 180 ) * (1 + _path[2].step*2/3);
g.lineTo( x + _path[2].x, y + _path[2].y );
g.lineTo(_path[0].x, _path[0].y);
// g.endFill();
}
g.endFill();
}
}