flash on 2010-1-10
/**
* Copyright hourglasseye ( http://wonderfl.net/user/hourglasseye )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/aw1e
*/
package
{
import flash.display.Sprite;
import flash.events.Event;
public class FleeingCircles extends Sprite
{
public function FleeingCircles()
{
var circles:Array = [];
for( var row:int = 0; row < 22; row++ )
{
for( var col:int = 0; col < 22; col++ )
{
var circle:FleeingCircle = new FleeingCircle( 10 + 21 * col, 10 + 21 * row, 9, 50 );
addChild( circle );
circles.push( circle );
}
}
var lastIteration:Number = new Date().getTime();
addEventListener( Event.ENTER_FRAME, function( e:Event ) : void {
var thisIteration:Number = new Date().getTime();
var deltaTime:Number = ( thisIteration - lastIteration ) * 0.001;
lastIteration = thisIteration;
var max:int = circles.length;
for( var i:int = 0; i < max; i++ )
{
var circle:FleeingCircle = circles[i];
circle.update( deltaTime );
}
} );
}
}
}
import flash.display.Sprite;
import flash.geom.Point;
class FleeingCircle extends Sprite
{
private var home:Point;
private var mouse:Point;
private var location:Point;
private var direction:Point;
private var speed:Number;
public function FleeingCircle( x:Number, y:Number, radius:Number, speed:Number )
{
graphics.beginFill( 0 );
graphics.drawCircle( 0, 0, radius );
this.x = x;
this.y = y;
home = new Point( this.x, this.y );
mouse = new Point();
location = new Point();
direction = new Point();
this.speed = speed;
}
public function update( deltaTime:Number ) : void
{
mouse.x = stage.mouseX;
mouse.y = stage.mouseY;
location.x = x;
location.y = y;
var displacement:Number;
if( Point.distance( mouse, location ) < 50 )
{
displacement = speed * deltaTime;
direction.x = location.x - mouse.x;
direction.y = location.y - mouse.y;
direction.normalize( 1 );
x += direction.x * displacement;
y += direction.y * displacement;
}
else if( Point.distance( home, location ) > 0.5 )
{
displacement = speed * deltaTime * 0.5;
direction.x = home.x - location.x;
direction.y = home.y - location.y;
direction.normalize( 1 );
x += direction.x * displacement;
y += direction.y * displacement;
}
}
}