// forked from enoeno's [Box2D]　デジタルししおどし /* 回転ジョイントの勉強をかねて「ししおどし」を作ってみました。 [ 参考にさせていただいたサイト ] http://d.hatena.ne.jp/nitoyon/20090428/box2dflashas3_2_0_2 http://sakeprog.cocolog-nifty.com/sake/2008/05/box2dflashas3_0054.html#more http://hokori.net/category/note/ http://nutsu.com/blog/2008/091721_as_box2djoint.html カラーバリエーションも作ってみました http://wonderfl.kayac.com/code/e8c42f47a86e7decb248aa7d9877ace419a1153a */ package { import Box2D.Collision.b2AABB; import Box2D.Collision.Shapes.*; import Box2D.Common.Math.b2Vec2; import Box2D.Dynamics.b2Body; import Box2D.Dynamics.b2BodyDef; import Box2D.Dynamics.b2DebugDraw; import Box2D.Dynamics.b2World; import Box2D.Dynamics.Joints.b2DistanceJoint; import Box2D.Dynamics.Joints.b2DistanceJointDef; import Box2D.Dynamics.Joints.b2GearJoint; import Box2D.Dynamics.Joints.b2GearJointDef; import Box2D.Dynamics.Joints.b2MouseJoint; import Box2D.Dynamics.Joints.b2MouseJointDef; import Box2D.Dynamics.Joints.b2PrismaticJoint; import Box2D.Dynamics.Joints.b2PrismaticJointDef; import Box2D.Dynamics.Joints.b2RevoluteJoint; import Box2D.Dynamics.Joints.b2RevoluteJointDef; import com.flashdynamix.utils.SWFProfiler; import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; import flash.display.StageScaleMode; import flash.display.StageAlign; import flash.display.StageQuality; import flash.events.TimerEvent; import flash.utils.Timer; import flash.utils.getTimer; public class ShishiOdoshi extends Sprite { private var world:b2World; private var m_physScale:uint = 100; private const ADD_INTERVAL_TIME:int = 130; private var myTimer:Timer; public function ShishiOdoshi():void { SWFProfiler.init(this); stage.frameRate=60; stage.quality=StageQuality.BEST; stage.align=StageAlign.TOP_LEFT; stage.scaleMode=StageScaleMode.NO_SCALE; addEventListener(Event.ENTER_FRAME, enterFrameHandler); init(); } private function init():void { var worldAABB:b2AABB = new b2AABB(); worldAABB.lowerBound.Set(-100, -100); worldAABB.upperBound.Set(100, 100); // 重力 var gravity:b2Vec2 = new b2Vec2(0, 9.8 / 60); world = new b2World(worldAABB, gravity, true); // 床の設置 var floorBodyDef:b2BodyDef = new b2BodyDef(); floorBodyDef.position.Set(3.4, 3.5); floorBodyDef.angle = 0.01; var floorShapeDef:b2PolygonDef = new b2PolygonDef(); floorShapeDef.SetAsBox(2, 0.05); // 物体として作る var floor:b2Body = world.CreateBody(floorBodyDef); floor.CreateShape( floorShapeDef ); // 柱の設置 var pillarBodyDef:b2BodyDef = new b2BodyDef(); pillarBodyDef.position.Set( 2, 3 ); var pillarShapeDef:b2PolygonDef = new b2PolygonDef(); pillarShapeDef.SetAsBox( 0.05, 0.5); // 物体として作る var pillar:b2Body = world.CreateBody( pillarBodyDef ); pillar.CreateShape( pillarShapeDef ); var boxBodyDef:b2BodyDef = new b2BodyDef(); boxBodyDef.position.Set(2.1, 2.6); boxBodyDef.angle = 1.25; var boxShapeDef:b2PolygonDef= new b2PolygonDef(); boxShapeDef.density = 1; // 密度 boxShapeDef.restitution = 0.01; // 反発係数 // 物体を作る var boxBody:b2Body = world.CreateBody( boxBodyDef ); boxShapeDef.vertexCount = 4; boxShapeDef.vertices[0].Set( 0.2, -1.2 ); boxShapeDef.vertices[1].Set( 0.2, 0.6); boxShapeDef.vertices[2].Set( 0.1, 0.6 ); boxShapeDef.vertices[3].Set( 0.1, -0.9 ); // 形を物体に追加する boxBody.CreateShape( boxShapeDef ); // 定義を変更してもう１個の形を追加する boxShapeDef.vertexCount = 4; boxShapeDef.vertices[0].Set( 0.2, 0 ); boxShapeDef.vertices[1].Set( 0.2, 0.7 ); boxShapeDef.vertices[2].Set( -0.2, 0.8 ); boxShapeDef.vertices[3].Set( -0.2, 0 ); // 形を物体に追加する boxBody.CreateShape( boxShapeDef ); // 定義を変更してもう１個の形を追加する boxShapeDef.vertexCount = 4; boxShapeDef.vertices[0].Set( -0.1, -0.6 ); boxShapeDef.vertices[1].Set( -0.1, 0.6 ); boxShapeDef.vertices[2].Set( -0.2, 0.6 ); boxShapeDef.vertices[3].Set( -0.2, -0.3 ); // 形を物体に追加する boxBody.CreateShape( boxShapeDef ); // 箱を動く物体として作る boxBody.SetMassFromShapes(); // ジョイントの定義 var jointDef:b2RevoluteJointDef = new b2RevoluteJointDef(); jointDef.enableLimit = true jointDef.lowerAngle = -90 / (180/Math.PI); jointDef.upperAngle = 5 / (180/Math.PI); var anchor:b2Vec2 = boxBodyDef.position; //var anchor = new b2Vec2(1.98, 2.7); jointDef.Initialize( boxBody, pillar, anchor ); var revolute_joint : b2RevoluteJoint = world.CreateJoint( jointDef ) as b2RevoluteJoint; var wxArr:Array = [ 400, 410 ]; var wyArr:Array = [ 30, 155 ]; var wwArr:Array = [ 5, 200 ]; var whArr:Array = [ 50, 5 ]; var rArr:Array = [ -0.2, -0.45 ]; /* Pipe */ for (var j:uint = 0; j < wxArr.length; j++) { var PipeBodyDef:b2BodyDef = new b2BodyDef(); PipeBodyDef.position.Set(wxArr[j] / m_physScale, wyArr[j] / m_physScale); var PipeShapeDef:b2PolygonDef = new b2PolygonDef(); PipeShapeDef.SetAsOrientedBox(wwArr[j] / 2 / m_physScale, whArr[j]/2 / m_physScale, new b2Vec2(0,0), rArr[j]); var PipeBody:b2Body = world.CreateBody( PipeBodyDef); PipeBody.CreateShape( PipeShapeDef); } myTimer = new Timer(ADD_INTERVAL_TIME, 0); myTimer.addEventListener(TimerEvent.TIMER, addCircle); myTimer.start(); /* addCircle(); addCircle(); addCircle(); */ //////////////////////////////////////// // 描画設定 var debugDraw:b2DebugDraw = new b2DebugDraw(); debugDraw.m_sprite = this; debugDraw.m_drawScale = 100; // 1mを100ピクセルにする debugDraw.m_fillAlpha = 0.9; // 不透明度 debugDraw.m_lineThickness = 1; // 線の太さ //debugDraw.m_drawFlags = b2DebugDraw.e_shapeBit | b2DebugDraw.e_jointBit | b2DebugDraw.e_centerOfMassBit; debugDraw.m_drawFlags = b2DebugDraw.e_shapeBit; world.SetDebugDraw(debugDraw); } private function enterFrameHandler(event:Event):void { // 物理シミュレーションを進める world.Step(1 / 24, 10); if (world == null) { return; } for (var bb:b2Body = world.m_bodyList; bb; bb = bb.m_next){ if (bb.m_userData is Sprite){ bb.m_userData.x = bb.GetPosition().x * 100; bb.m_userData.y = bb.GetPosition().y * 100; bb.m_userData.rotation = bb.GetAngle() * (180/Math.PI); } //trace(bb.GetPosition().y); if(bb.GetPosition().x > stage.stageWidth/100 ){ //trace("delete : "+bb); world.DestroyBody(bb); } } } private function addCircle(e:TimerEvent):void{ var circleDef:b2CircleDef = new b2CircleDef(); //circleDef.radius = Math.random()/10+0.00075; circleDef.radius = 0.04; circleDef.density = 1.5; circleDef.friction = 0.01; circleDef.restitution = 0.01; var circleBD:b2BodyDef = new b2BodyDef(); circleBD.position.Set(400/ m_physScale, 0); var circleBody:b2Body = world.CreateBody( circleBD ); circleBody.CreateShape( circleDef ); circleBody.SetMassFromShapes(); }//end of function } }