[Study] AS 3.0 Animation ch10_03
/**
* Copyright nmrtmnr ( http://wonderfl.net/user/nmrtmnr )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/rGom
*/
package {
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.text.TextField;
import flash.events.Event;
import flash.events.MouseEvent;
public class Rotate3 extends Sprite {
private var balls:Array;
private var numBalls:uint = 10;
private var vr:Number = .05;
public function Rotate3() {
init();
var textField:TextField = new TextField();
addChild(textField);
textField.x = 10;
textField.y = 10;
textField.width = stage.stageWidth;
textField.height = 40;
textField.text = '高度な座標回転\n複数のオブジェクトの回転(カーソルの左右の位置で速度と方向が変化)';
}
private function init():void {
balls = new Array();
for(var i:uint = 0; i < numBalls; i++){
var ball:Ball = new Ball(20, Math.random() * 0xfffff);
balls.push(ball);
addChild(ball);
ball.x = Math.random() * stage.stageWidth;
ball.y = Math.random() * stage.stageHeight;
}
addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
private function onEnterFrame(event:Event):void {
var angle:Number = (mouseX - stage.stageWidth / 2) * .001;
var cos:Number = Math.cos(angle);
var sin:Number = Math.sin(angle);
for(var i:uint = 0; i < numBalls; i++) {
var ball:Ball = balls[i];
var x1:Number = ball.x - stage.stageWidth / 2;
var y1:Number = ball.y - stage.stageHeight / 2;
var x2:Number = cos * x1 - sin * y1;
var y2:Number = cos * y1 + sin * x1;
ball.x = stage.stageWidth / 2 + x2;
ball.y = stage.stageHeight / 2 + y2;
}
}
}
}
import flash.display.Sprite;
// Boxクラス
class Box extends Sprite {
private var w:Number;
private var h:Number;
private var color:uint;
public var vx:Number;
public var vy:Number;
public function Box(width:Number = 50, height:Number = 50, color:uint = 0xff0000) {
w = width;
h = height;
this.color = color;
init();
}
public function init():void {
graphics.beginFill(color);
graphics.drawRect(-w / 2, -h / 2, w, h);
graphics.endFill();
}
}
// ↑↑↑
// Arrowクラス
class Arrow extends Sprite {
public function Arrow() {
init();
}
private function init():void {
graphics.lineStyle(1, 0, 1);
graphics.beginFill(0xffff00);
graphics.moveTo(-50, -25);
graphics.lineTo(0, -25);
graphics.lineTo(0, -50);
graphics.lineTo(50, 0);
graphics.lineTo(0, 50);
graphics.lineTo(0, 25);
graphics.lineTo(-50, 25);
graphics.lineTo(-50, -25);
graphics.endFill();
}
}
// ↑↑↑
// Ballクラス
class Ball extends Sprite {
private var radius:Number;
private var color:uint;
private var vx:Number = 0;
private var vy:Number = 0;
public function Ball(radius:Number = 40, color:uint=0xff0000) {
this.radius = radius;
this.color = color;
init();
}
private function init():void {
graphics.beginFill(color);
graphics.drawCircle(0, 0, radius);
graphics.endFill();
}
}
// ↑↑↑