跳ね返り3D
forked from ボールを動かす3D (diff: 34)
ActionScript3 source code
/**
* Copyright _wonder ( http://wonderfl.net/user/_wonder )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/6Jtf
*/
// forked from _wonder's ボールを動かす3D
// forked from _wonder's 遠ざかるボール
// forked from _wonder's base
package {
import flash.display.Sprite;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
public class Perspective extends Sprite {
private var ball:Ball;
private var xpos:Number = 0;
private var ypos:Number = 0;
private var zpos:Number = 0;
private var vx:Number = Math.random()*10-5;
private var vy:Number = Math.random()*10-5;
private var vz:Number = Math.random()*10-5;
private var friction:Number = 0.98;
private var fl:Number = 250;
private var vpX:Number = stage.stageWidth / 2;
private var vpY:Number = stage.stageHeight / 2;
private var top:Number = -100;
private var bottom:Number = 100;
private var left:Number = -100;
private var right:Number = 100;
private var front:Number = 100;
private var back:Number = -100;
public function Perspective() {
ball = new Ball();
addChild( ball );
addEventListener(Event.ENTER_FRAME, onEnterFrame);
stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
}
private function onEnterFrame(e:Event):void {
xpos += vx;
ypos += vy;
zpos += vz;
var radius:Number = ball.radius;
if( xpos + radius > right ){
xpos = right - radius;
vx *= -1;
} else if ( xpos - radius < left ){
xpos = left + radius;
vx *= -1;
}
if( ypos + radius > bottom ){
ypos = bottom - radius;
vy *= -1;
} else if ( ypos - radius < top ){
ypos = top + radius;
vy *= -1;
}
if( zpos + radius > front ){
zpos = front - radius;
vz *= -1;
} else if ( zpos - radius < back ){
zpos = back + radius;
vz *= -1;
}
if( zpos > -fl ){
var scale:Number = fl / ( fl + zpos );
ball.scaleX = ball.scaleY = scale;
ball.x = vpX + xpos * scale;
ball.y = vpX + ypos * scale;
ball.visible = true;
} else {
ball.visible = false;
}
}
private function onKeyDown(e:KeyboardEvent):void {
switch( e.keyCode ){
case Keyboard.UP:
vy -= 1;
break;
case Keyboard.DOWN:
vy += 1;
break;
case Keyboard.LEFT:
vx -= 1;
break;
case Keyboard.RIGHT:
vx += 1;
break;
case Keyboard.SHIFT:
vz += 1;
break;
case Keyboard.CONTROL:
vz -= 1;
break;
default:
break;
}
}
}
}
import flash.display.Sprite;
class Ball extends Sprite {
public var radius:Number;
public var color:uint;
public var vx:Number = 0;
public var vy:Number = 0;
public function Ball(radius:Number=40, color:uint=0Xff0000){
this.radius = radius;
this.color = color;
init();
}
public function init():void {
graphics.beginFill(color);
graphics.drawCircle(0, 0, radius);
graphics.endFill();
}
}