Forked from:: a24 's Line slicer（割れるよ）

forked from: Line slicer（割れるよ）

マウス押しっぱなしで切りまくるようにした

切った後、割れるようにした

forked:4
favorite:45
lines:193
license : MIT License
modified : 2009-06-11 01:54:14

/*
マウス押しっぱなしで切りまくるようにした
*/
// forked from a24's Line slicer（割れるよ）
// forked from a24's Line slicer
// 切った後、割れるようにした
package  
{
	import flash.display.Sprite;
	import flash.geom.Point;
	import flash.events.MouseEvent;
	import flash.text.TextField;
	import flash.text.TextFormat;
	import flash.text.TextFormatAlign;
	import flash.text.TextFieldAutoSize;
	import flash.events.Event;
	import net.hires.debug.Stats;
	
	[ SWF( width = "465" , height = "465" , backgroundColor = "0x000000" , frameRate = "60" ) ]

public class Slicer extends Sprite
	{
		private var _line:Sprite = new Sprite();
		private	var _container:Sprite = new Sprite();
		private var isPress:Boolean;
		private var counterTfd:TextField = new TextField;
		
		public function Slicer() 
		{
			graphics.beginFill(0);
			graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
			
			Wonderfl.capture_delay( 20 );
			
			var _pointArray:Array = [
				new Point( 0 , 0 ),
				new Point( 265 , 0 ),
				new Point( 265 , 265 ),
				new Point( 0 , 265 )
			];
			
			var _sliceObj:LineSliceObject = new LineSliceObject( stage , _pointArray ,
			(Math.random() * 0x99 + 0x66) << 16 | 
			(Math.random() * 0x99 + 0x66) << 8 | 
			(Math.random() * 0x99 + 0x66)
			);
			_sliceObj.x = _sliceObj.y = 100;
			_container.addChild( _sliceObj );
			addChild( _container );
			addChild( _line );
			
			//text
			var tft:TextFormat = new TextFormat();
			tft.align = TextFormatAlign.RIGHT;
			tft.bold = true;
			tft.font = "Verdana";
			tft.color = 0xFFFFFF;
			tft.letterSpacing = 5;
			tft.size = 48;
			
			counterTfd.defaultTextFormat = tft;
			counterTfd.autoSize = TextFieldAutoSize.RIGHT;
			counterTfd.mouseEnabled = false;
			counterTfd.x = stage.stageWidth -20;
			counterTfd.y = stage.stageHeight - 60;
			addChild(counterTfd);
			
			//stats
			addChild(new Stats());
			
			
			//evts
			stage.addEventListener( MouseEvent.MOUSE_DOWN, function ():void 
			{
				isPress = true;
			});
			stage.addEventListener( MouseEvent.MOUSE_UP, function ():void 
			{
				isPress = false;
				_line.graphics.clear();
				
				while (_container.numChildren) _container.removeChildAt(0);
				var _sliceObj:LineSliceObject = new LineSliceObject( stage , _pointArray ,
				(Math.random() * 0x99 + 0x66) << 16 | 
				(Math.random() * 0x99 + 0x66) << 8 | 
				(Math.random() * 0x99 + 0x66)
				);
				_sliceObj.x = _sliceObj.y = 100;
				_container.addChild( _sliceObj );
			});
			addEventListener(Event.ENTER_FRAME, function ():void 
			{
				if (!isPress) return;

var t1:Number = Math.random() * Math.PI * 2;
				var t2:Number = t1 + Math.random() * (Math.PI * 2 / 3) + Math.PI * 1 / 3;
				
				var pt1:Point = Point.polar(300, t1).add(new Point(stage.stageWidth/2, stage.stageHeight / 2)); 
				var pt2:Point = Point.polar(300, t2).add(new Point(stage.stageWidth/2, stage.stageHeight / 2)); 
				
				
				var lsos:Array = [];
				for (var i:int = 0; i < _container.numChildren; i++)
				{
					lsos.push(_container.getChildAt(i))
				}
				for each (var lso:LineSliceObject in lsos)
				{
					lso.slice(pt1, pt2);
				}
				
				counterTfd.text = _container.numChildren.toString();
				_line.graphics.clear();
				_line.graphics.lineStyle( 2.0 , 0x00FF00 , 1.0);
				_line.graphics.moveTo( pt1.x , pt1.y );
				_line.graphics.lineTo( pt2.x , pt2.y );
				_line.graphics.endFill();
			});
		}
	}
}

import flash.display.Sprite;
import flash.display.Stage;
import flash.geom.Point;
import flash.events.MouseEvent;
import caurina.transitions.Tweener;

class LineSliceObject extends Sprite
{
	private var _stage:Stage;
	private var _pointArray:Array;
	private var _color:uint;
	private var _point1:Point;
	private var _point2:Point;
	private var _length:int;
	
	public function LineSliceObject( _stage:Stage , _pointArray:Array , _color:uint ) 
	{
		this._stage = _stage;
		this._pointArray = _pointArray;
		this._color = _color;
		drawRectFromPoint( this , _pointArray , _color );
	}

/*
	 * ------------------------------------------------------------
	 * Graphic描画
	 * ------------------------------------------------------------
	*/
	private function drawRectFromPoint( _target:* , _pointArray:Array , _color:uint ):void
	{
		_target.graphics.beginFill( _color , 1.0 );
		_target.graphics.moveTo( _pointArray[ 0 ].x , _pointArray[ 0 ].y );
		_length = _pointArray.length;
		for ( var i:int = 1; i < _length; i ++ )
		{
			var _point:Point = _pointArray[ i ];
			_target.graphics.lineTo( _point.x , _point.y );
		}
		_target.graphics.endFill();
	}
	
	/*
	 * ------------------------------------------------------------
	 * スライス
	 * ------------------------------------------------------------
	*/
	public function slice( _point1:Point , _point2:Point ):void
	{
		var _pt1:Point = globalToLocal( _point1 );
		var _pt2:Point = globalToLocal( _point2 );
		var _newPointArray:Array = [ new Array() , new Array() ];
		var _numCloss:int = 0;
		
		for ( var i:int = 0; i < _length ; i ++ ) 
		{
			var _pt3:Point = _pointArray[ i ];
			var _pt4:Point = ( _pointArray[ i + 1 ] ) ? _pointArray[ i + 1 ] : _pointArray[ 0 ];
			var _clossPt:Point = crossPoint( _pt1 , _pt2 , _pt3 , _pt4 );
			
			_newPointArray[ 0 ].push( _pt3 );
			if ( _clossPt )
			{
				_newPointArray[ 0 ].push( _clossPt );
				_newPointArray[ 1 ].push( _clossPt );
				_newPointArray.reverse();
				_numCloss ++;
			}
		}
		if ( _numCloss == 2 )
		{
			var _newObj1:LineSliceObject = new LineSliceObject( _stage , _newPointArray[ 0 ] , _color );
			var _newObj2:LineSliceObject = new LineSliceObject( _stage , _newPointArray[ 1 ] , Math.random() * 0xFFFF00 );
			_newObj1.x = _newObj2.x = this.x;
			_newObj1.y = _newObj2.y = this.y;
			parent.addChild( _newObj1 );
			parent.addChild( _newObj2 );
			parent.removeChild( this );

var _vector:Point = _pt2.subtract( _pt1 );
			var _angle:Number = Math.atan2( _vector.y , _vector.x );
			var _force:int = 6 * Math.random() * 20;
			var _fx:Number = Math.abs( Math.sin( _angle ) );
			var _fy:Number = Math.abs( Math.cos( _angle ) );
			var _fx1:Number = ( _newPointArray[0][0].x < _newPointArray[1][0].x ) ? -_fx : _fx;
			var _fx2:Number = ( _newPointArray[1][0].x < _newPointArray[0][0].x ) ? -_fx : _fx;
			var _fy1:Number = ( _newPointArray[0][0].y < _newPointArray[1][0].y ) ? -_fy : _fy;
			var _fy2:Number = ( _newPointArray[1][0].y < _newPointArray[0][0].y ) ? -_fy : _fy;
			
			Tweener.addTween( _newObj1 , { x : _newObj1.x + _fx1 * _force , y : _newObj1.y + _fy1 * _force , time : 1 } );
			Tweener.addTween( _newObj2 , { x : _newObj2.x + _fx2 * _force , y : _newObj2.y + _fy2 * _force , time : 1 } );
		}
//		else _stage.addEventListener( MouseEvent.MOUSE_DOWN , mouseDownHandler );
	}
	
	/*
	 * ------------------------------------------------------------
	 * 交点を割り出す
	 * ------------------------------------------------------------
	*/
	private function crossPoint( _pt1:Point , _pt2:Point , _pt3:Point , _pt4:Point ):Point
	{	
		var _vector1:Point = _pt2.subtract( _pt1 );
		var _vector2:Point = _pt4.subtract( _pt3 );
		
		if ( cross( _vector1, _vector2 ) == 0.0) return null;
		
		var _s:Number = cross( _vector2 , _pt3.subtract( _pt1) ) / cross( _vector2 , _vector1 );
		var _t:Number = cross( _vector1, _pt1.subtract( _pt3 ) ) / cross( _vector1, _vector2 );

if ( isCross( _s ) && isCross( _t ) )
		{
			_vector1.x *= _s;
			_vector1.y *= _s;
			return _pt1.add( _vector1 );
		}
		else return null;
	}
		
	private function cross( _vector1:Point , _vector2:Point ):Number
	{
		return ( _vector1.x * _vector2.y - _vector1.y * _vector2.x );
	}
	
	public static function isCross( _n:Number ):Boolean
	{
		return ( ( 0 <= _n ) && ( _n <= 1) );
	}
}

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