flash on 2011-7-13

by phi16 13 Jul 2011

Embed

/**
 * Copyright phi16 ( http://wonderfl.net/user/phi16 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/iknW
 */

package {
    import flash.ui.Mouse;
    import flash.display.Sprite;
    import flash.events.*;
    import Box2D.Common.Math.b2Vec2;
    import Box2D.Collision.*;
    import Box2D.Collision.Shapes.*;
    import Box2D.Dynamics.*;
    import Box2D.Dynamics.Joints.*;
    public class Postfix extends Sprite{
        public var world:b2World;
        public var mj:b2MouseJoint;
        public var obj:Array=new Array();
        public var spr:Sprite=new Sprite();
        
        public var sh:b2Shape;
        
        public function Postfix(){
            this.x=465/2;
            this.y=465/2;
            var worldAABB:b2AABB=new b2AABB();
            worldAABB.lowerBound.Set(-300,-300);
            worldAABB.upperBound.Set(300,300);
            world=new b2World(worldAABB,new b2Vec2(1,1),false);
   
            var circle:b2CircleDef=new b2CircleDef;
            circle.radius=0.2;
            circle.density=1;
            circle.restitution=0.2;
            var bodyd:b2BodyDef=new b2BodyDef();
            bodyd.position.Set(0,0);
            var box:b2Body=world.CreateBody(bodyd);
            sh=box.CreateShape(circle);
            box.SetMassFromShapes();
            var walldef0:b2PolygonDef=new b2PolygonDef();
            walldef0.SetAsBox(4.65/2,0.1/2);
            var walldef1:b2PolygonDef=new b2PolygonDef();
            walldef1.SetAsBox(0.1/2,4.65/2);
            var wall:b2BodyDef=new b2BodyDef();
            wall.position.Set(0,-4.65/2+0.05);
            world.CreateBody(wall).CreateShape(walldef0);
            wall=new b2BodyDef();
            wall.position.Set(0,4.65/2-0.05);
            world.CreateBody(wall).CreateShape(walldef0);
            wall=new b2BodyDef();
            wall.position.Set(-4.65/2+0.05,0);
            world.CreateBody(wall).CreateShape(walldef1);
            wall=new b2BodyDef();
            wall.position.Set(4.65/2-0.05,0);
            world.CreateBody(wall).CreateShape(walldef1);
            wall=new b2BodyDef();
            wall.position.Set(4.65/2-0.55,4.65/4);
            world.CreateBody(wall).CreateShape(walldef1);
            spr.graphics.lineStyle(1,0xffffff);
            addChild(spr);
            addEventListener(Event.ENTER_FRAME,Loop);
        }
        public var ti:Number=0;
        public function Loop(e:Event):void{
            world.Step(0.1,10);
            ti=Math.atan2(mouseY,mouseX);
            world.SetGravity(new b2Vec2(Math.cos(ti),Math.sin(ti)));
            spr.graphics.clear();
            spr.graphics.beginFill(0x000000);
            spr.graphics.drawRect(-465/2,-465/2,465,465);
            spr.graphics.endFill();
            spr.graphics.lineStyle(1,0xffffff);
            spr.graphics.drawCircle(sh.GetBody().GetPosition().x*100,sh.GetBody().GetPosition().y*100,20);
            spr.graphics.drawRect(-465/2,-465/2,465,10);
            spr.graphics.drawRect(-465/2,465/2,465,-10);
            spr.graphics.drawRect(-465/2,-465/2,10,465);
            spr.graphics.drawRect(465/2,-465/2,-10,465);
            spr.graphics.drawRect(465/2-60,-465/4,10,465); 
        }
    }
}