package 
{	
	import Box2D.Dynamics.Joints.*;
	import flash.display.Sprite;
	import flash.events.KeyboardEvent;
	import flash.events.Event;
	import Box2D.Dynamics.*;
	import Box2D.Collision.*;
	import Box2D.Collision.Shapes.*;
	import Box2D.Common.Math.*;
 
	public class Main extends Sprite {
		public var world:b2World=new b2World(new b2Vec2(0,10.0),true);
		public var world_scale:int = 30;
 
		public static const SQUARE:String = "SQUARE";
		public static const CIRCLE:String = "CIRCLE";
		public var fixtureDef:b2FixtureDef = new b2FixtureDef();
 
		public var specialB2Body:b2Body;
 
		public var motorOn:Boolean;
 
		//order: x , y , height, width, rotation, isDynamic, shape, friction,density,restitution,ID 
 var map:Array = [
[175,324,50,50,0,true,'SQUARE' , 1,0.5,0.5,'normal']
,[325,325,50,50,0,true,'SQUARE' , 1,0.5,0.5,'normal']
,[250,375,50,500,0,false,'SQUARE' , 1,0.5,0.5,'ground']
,[250,275,50,300,0,true,'SQUARE' , 1,0.5,0.5,'normal']
,[250,200,100,150,0,true,'SQUARE' , 1,0.5,0.5,'normal']
,[125,225,50,50,0,true,'SQUARE' , 1,2,0.5,'heavy']
,[250,125,50,50,0,true,'SQUARE' , 1,2,0.5,'heavy']
,[375,225,50,50,0,true,'SQUARE' , 1,2,0.5,'heavy']
,[250,50,100,50,0,true,'SQUARE' , 1,0.25,0.5,'totem']
];		//
		public function Main():void 
		{
			debug_draw();
 
			for (var i:uint = 0; i < map.length; i++)
			{
				var sx:Number = map[i][0];
				var sy:Number = map[i][1];
				var sizerh:Number = map[i][2];
				var sizerw:Number = map[i][3];
				var srot:Number = map[i][4];
				var sIsDynamic:* = map[i][5];
				var sShape:String = map[i][6];
				var sFric:Number = map[i][7];
				var sMass:Number = map[i][8];
				var sRest:Number = map[i][9];
				var boxId:int = map[i][10];
 
				if (sShape == SQUARE)
				{	
					draw_box(sx, sy, sizerw, sizerh, sIsDynamic,srot,sFric,sMass,sRest,boxId);
				}
				else if (sShape == CIRCLE)
				{
					draw_circle(sx, sy, sizerw / 2, sIsDynamic,srot,sFric,sMass,sRest,boxId);
				}
			}
			addEventListener(Event.ENTER_FRAME, update);
		}
 
		public function draw_circle(px:Number, py:Number, r:Number, d:Boolean, rot:Number,
		fric:Number,mass:Number,rest:Number,boxId:int):void {
			var my_body:b2BodyDef= new b2BodyDef();
			my_body.position.Set(px / world_scale, py / world_scale);
			if (d) 
			{
				my_body.type=b2Body.b2_dynamicBody;
			}
			my_body.angle = rot;
			var my_circle:b2CircleShape=new b2CircleShape(r/world_scale);
			var my_fixture:b2FixtureDef = new b2FixtureDef();
			my_fixture.density = mass;
			my_fixture.friction = fric;
			my_fixture.restitution = rest;
			my_fixture.shape=my_circle;
			var world_body:b2Body = world.CreateBody(my_body);
			world_body.CreateFixture(my_fixture);
		}
 
		public function draw_box(px:Number, py:Number, w:Number, h:Number, d:Boolean, rot:Number,
		fric:Number,mass:Number,rest:Number,boxId:int):void {
			var my_body:b2BodyDef = new b2BodyDef();
 
			my_body.position.Set(px / world_scale, py / world_scale);
			my_body.angle = rot;
			if (d) 
			{
				my_body.type=b2Body.b2_dynamicBody;
			}
			var my_box:b2PolygonShape = new b2PolygonShape();
			my_box.SetAsBox(w/2/world_scale, h/2/world_scale);
			var my_fixture:b2FixtureDef = new b2FixtureDef();
			my_fixture.density = mass;
			my_fixture.friction = fric;
			my_fixture.restitution = rest;
			my_fixture.shape=my_box;
			var world_body:b2Body=world.CreateBody(my_body);
			world_body.CreateFixture(my_fixture);
		}
 
		public function debug_draw():void {
			var debug_draw:b2DebugDraw = new b2DebugDraw();
			var debug_sprite:Sprite = new Sprite();
			addChild(debug_sprite);
			debug_draw.SetSprite(debug_sprite);
			debug_draw.SetFillAlpha(0.3);
			debug_draw.SetDrawScale(world_scale);
			debug_draw.SetFlags(b2DebugDraw.e_shapeBit);
			world.SetDebugDraw(debug_draw);
		}
		public function update(e : Event):void {
			world.Step(1 / 30, 10, 10);			
			world.ClearForces();
			world.DrawDebugData();
		}
	}
}