/**
* Copyright prototype ( http://wonderfl.net/user/prototype )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/l94I
*/
package {
import flash.geom.Point;
import flash.events.Event;
import flash.display.Sprite
import flash.events.MouseEvent;
import flash.filters.BevelFilter;
[SWF(width = 720, height = 480,backgroundColor = '#000000')]
public class OrbitalFun extends Sprite {
private var balls:Array;
private var planets:Array;
private var flying:Array;
public function OrbitalFun()
{
initTrace(stage);
planets = new Array;
balls = new Array;
flying = new Array;
planets = createBalls(10, 30, true);
balls = createBalls(10, 5,false);
linkBallsToPlanets();
addEventListener(Event.ENTER_FRAME, update);
addEventListener(MouseEvent.CLICK,clickHandler);
}
public function update(e:Event):void
{
//checkBallCollision();
updateOrbiters(planets);
updateFlying();
checkFlyingCollision();
}
public function clickHandler(e:MouseEvent):void
{
for (var index:int = 0;index < planets.length;index++)
{
var curObject:Object = planets[index];
var curPlanet:Sprite = curObject.sprite;
if (curPlanet.hitTestPoint(mouseX,mouseY))
{
for (var orbiterIndex:int = 0;orbiterIndex < curObject.orbiters.length;orbiterIndex++)
{
var curOrbiterObject:Object = curObject.orbiters[orbiterIndex];
var curOrbiter:Sprite = curOrbiterObject.sprite;
var launchAngle:Number = getAngle(curPlanet.x,curPlanet.y,curOrbiter.x,curOrbiter.y);
curOrbiterObject.xv = curOrbiterObject.speed * Math.cos(launchAngle);
curOrbiterObject.yv = curOrbiterObject.speed * Math.sin(launchAngle);
flying.push(curOrbiterObject);
curObject.orbiters.splice(orbiterIndex,1);
orbiterIndex--;
}
}
}
}
private function updateFlying():void
{
for(var index:int = 0;index < flying.length;index++)
{
var curObject:Object = flying[index];
var curOrbiter:Sprite = curObject.sprite;
//trace(curOrbiter.x +"," + curOrbiter.y);
curOrbiter.x += curObject.xv;
curOrbiter.y += curObject.yv;
}
}
private function checkFlyingCollision():void
{
for(var index:int = 0;index < flying.length;index++)
{
var curObject:Object = flying[index];
var curOrbiter:Sprite = curObject.sprite;
for(var planetIndex:int =0;planetIndex < planets.length;planetIndex++)
{
var curPlanetObject:Object = planets[planetIndex];
var curPlanet:Sprite = curPlanetObject.sprite;
if (curPlanet.hitTestObject(curOrbiter))
{
curPlanetObject.orbiters.push(curObject);
curObject.angle = getAngle(curPlanet.x, curPlanet.y, curOrbiter.x, curOrbiter.y);
flying.splice(index,1);
index--;
}
}
}
}
private function updateOrbiters(planetArray:Array):void
{
for (var index:int =0;index < planetArray.length;index++)
{
var curObject:Object = planetArray[index];
var curPlanet:Sprite = curObject.sprite;
for (var orbiterIndex:int = 0;orbiterIndex < curObject.orbiters.length;orbiterIndex++)
{
var curOrbiterObject:Object = curObject.orbiters[orbiterIndex];
curOrbiterObject.angle += .05;
curOrbiterObject.sprite.x = curPlanet.x + 40 * Math.cos(curOrbiterObject.angle);
curOrbiterObject.sprite..y = curPlanet.y + 40 * Math.sin(curOrbiterObject.angle);
}
}
}
private function linkBallsToPlanets():void
{
trace ("linkBallsToPlanets");
for (var index:int = 0;index < planets.length;index++)
{
var curPlanetObject:Object = planets[index] as Object;
var curOrbiterObject:Object = balls[index] as Object;
var curPlanet:Sprite = curPlanetObject.sprite;
var curOrbiter:Sprite = curOrbiterObject.sprite;
//trace (index + " : " + curOrbiter.x +"," + curOrbiter.y);
curPlanetObject.orbiters.push(curOrbiterObject);
curOrbiter.x = curPlanet.x + 40 * Math.cos(curOrbiterObject.angle);
curOrbiter.y = curPlanet.y + 40 * Math.sin(curOrbiterObject.angle);
}
}
public function checkBallCollision():void
{
for (var index:int = 0;index < planets.length;index++)
{
var curObject:Object = planets[index]
var curBall:Sprite = curObject.sprite;
if (curBall.hitTestPoint(mouseX, mouseY, true))
{
curBall.scaleX += .01;
curBall.scaleY += .01;
}
}
}
private function getValidLoc(testArray:Array, thresholdDistance:Number):Point
{
var validLoc:Boolean = false;
var tries:int = 0;
while (!validLoc && tries < 1500)
{
tries++;
validLoc = true;
var locX:Number = Math.random() * 620 + 40;
var locY:Number = Math.random() * 400 + 40;
for (var index:int = 0;index < testArray.length;index++)
{
var curBallObject:Object = testArray[index];
var curBall:Sprite = curBallObject.sprite;
var distance:Number = getDistance(curBall.x,curBall.y, locX, locY);
if (distance < thresholdDistance)
{
validLoc = false;
}
}
}
var validPoint:Point = new Point(locX,locY);
//trace ("tries : "+ tries);
return validPoint;
}
private function getDistance(x1:Number,y1:Number,x2:Number,y2:Number):Number
{
var distance:Number;
distance = Math.sqrt(((x1 - x2) * (x1 - x2)) + ((y1 - y2) * (y1 - y2)));
return distance;
}
private function getAngle(locX:Number,locY:Number,targetX:Number,targetY:Number):Number
{
return Math.atan2(targetY - locY, targetX -locX);
}
public function createBalls(amount:int, radius:Number, checkCollision:Boolean = false):Array
{
var ballArray:Array = new Array;
var ballColor:int = 0xFF0000;
var newLoc:Point;
for (var index:int = 0;index < amount;index++)
{
var ballObject:Object = new Object;
var newSprite:Sprite;
if (checkCollision)
{
ballColor = 0xFF0000;
//trace ("planet " + index + " check collision : " + newSprite.x + "," + newSprite.y);
newSprite = getBall(ballColor,radius);
newLoc = getValidLoc(ballArray, 125);
newSprite.x = newLoc.x;
newSprite.y = newLoc.y;
ballObject.orbiters = new Array;
}
else
{
ballColor = 0x0000FF;
newSprite = getBall(ballColor,radius);
newSprite.x = 50;
newSprite.y = index * 30;
//trace ("ball, not planet" + index + " : " + newSprite.x + "," + newSprite.y);
}
bevel(newSprite, 0xFFFFFF, .5, 0x000000,.25,3,45,3,3,50,3,"inner",false);
ballObject.sprite = newSprite;
ballObject.angle = Math.random() * 360;
ballObject.speed = 15;
//ballColor -= 0x220000;
addChild(newSprite);
ballArray.push(ballObject);
}
return ballArray;
}
public function getBall(colorCode:int, ballRadius:Number):Sprite
{
var ballSprite:Sprite = new Sprite;
ballSprite.graphics.lineStyle(3,colorCode);
ballSprite.graphics.beginFill(colorCode);
ballSprite.graphics.drawCircle(0,0,ballRadius);
return ballSprite;
}
public function bevel(sourceClip:Sprite, highlightColor:int,highlightAlpha:Number, shadowColor:int,shadowAlpha:Number, distance:Number, angle:Number, blurX:Number, blurY:Number, strength:Number, quality:int, type:String, knockout:Boolean):void
{
var bevel:BevelFilter = new BevelFilter;
var filtersArray:Array = new Array;
filtersArray = sourceClip.filters;
bevel.distance = distance;
bevel.angle = angle;
bevel.highlightColor = highlightColor;
bevel.highlightAlpha = highlightAlpha;
bevel.shadowColor = shadowColor;
bevel.shadowAlpha = shadowAlpha;
bevel.blurX = blurX;
bevel.blurY = blurY;
bevel.strength = strength;
bevel.quality = quality;
bevel.type = type;
bevel.knockout = knockout;
filtersArray.push(bevel);
sourceClip.filters = filtersArray;
}
}
}
import flash.display.Sprite;
import flash.display.Stage;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
class Orbiter extends Sprite
{
public var ballSprite:Sprite;
public var color:int;
public var ballRadius:Number;
public var angle:Number;
public var speed:Number;
public function Orbiter(colorCode:int, ballRadius:Number)
{
ballSprite = new Sprite;
ballSprite.graphics.lineStyle(3,colorCode);
ballSprite.graphics.beginFill(colorCode);
ballSprite.graphics.drawCircle(0,0,ballRadius);
addChild(ballSprite);
}
}
class Planet extends Sprite
{
public var ballSprite:Sprite;
public var color:int;
public var ballRadius:Number;
public var orbiters:Array;
public function Planet(colorCode:int, ballRadius:Number)
{
orbiters = new Array;
ballSprite = new Sprite;
ballSprite.graphics.lineStyle(3,colorCode);
ballSprite.graphics.beginFill(colorCode);
ballSprite.graphics.drawCircle(0,0,ballRadius);
addChild(ballSprite);
}
}
var txt:TextField=new TextField();
txt.defaultTextFormat=new flash.text.TextFormat("courier new,courier,arial",16);
txt.mouseEnabled=false;
txt.selectable=false;
txt.alpha=.5;
var initTrace:Function=function(s:Stage):void{s.addChild(txt);};
txt.autoSize = TextFieldAutoSize.LEFT;
function trace(mess:*):void
{
var s:Stage=txt.stage;
txt.appendText(mess.toString()+"\n");
if(s===null)
return;
txt.y=s.stageHeight-txt.textHeight;
};
