チョットやってみたかっただけです
漫画っぽい集中線をかく
* @author minon
// forked from XELF's forked from: forked from: 漫画っぽい集中線
// forked from sw_lucchini's forked from: 漫画っぽい集中線
// forked from minon's 漫画っぽい集中線
/**
* 漫画っぽい集中線をかく
* @author minon
*/
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Graphics;
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.Matrix;
import flash.geom.Rectangle;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
[SWF(width="465",height="465",frameRate="1",backgroundColor="0xFFFFFF")]
public class LineTest extends Sprite {
private var _canvas:BitmapData;
public function LineTest() {
_canvas = new BitmapData( 465, 465, true, 0 );
this.addChild( new Bitmap( _canvas ) );
_drawLine( _canvas );
var txt:TextField = new TextField();
txt.x = 150;
txt.y = 200;
txt.autoSize = TextFieldAutoSize.LEFT;
var tf:TextFormat = new TextFormat();
tf.size = 21;
txt.defaultTextFormat = tf;
txt.text = "な、なんですとお！";
this.addChild( txt );
stage.addEventListener( Event.ENTER_FRAME, _render );
}
private function _render(e:Event):void {
_canvas.fillRect( new Rectangle( 0, 0, 465, 465 ), 0 );
_drawLine( _canvas );
}
public function _drawLine( bmp:BitmapData ):void {
var line:Sprite = new Sprite();
var g:Graphics = line.graphics;
drawTriangle( g );
var a:Number = 7 * Math.PI / 180;
var len:Number = stage.width / 2 * Math.sqrt(2);
var mtx:Matrix = new Matrix();
for (var d:Number = Math.PI * 2; d > 0; d -= Math.random() * a) {
var x:Number = Math.sin( d ) * len + stage.width / 2;
var y:Number = Math.cos( d ) * len + stage.height / 2;
mtx.identity();
mtx.scale( 15, Math.random() * len + len / 2 );
mtx.rotate( -d );
mtx.translate( x, y );
bmp.draw( line, mtx );
}
}
public function drawTriangle( g:Graphics ):void {
g.beginFill( 0x00 );
g.moveTo( -0.5, 0 );
g.lineTo( 0.5, 0 );
g.lineTo( 0, -0.5 );
g.lineTo( -0.5, 0 );
g.endFill();
}
}
}