/*===================================================*//** * Box2DAS3 and Papervision3D Demo * ドラッグで3Dを回転できます。 * マウスホイールで拡大できます。 * 後ろ側の緑色のはBox2Dの2次元表示です。 * * rsakane さんの投稿から Folk させていただきました。 * * @author Yasu * @see http://clockmaker.jp/blog/ * @since 2009.04.02 *//*===================================================*/ package { import Box2D.Collision.Shapes.*; import Box2D.Collision.b2AABB; import Box2D.Common.Math.b2Vec2; import Box2D.Dynamics.Joints.*; import Box2D.Dynamics.*; import org.papervision3d.cameras.CameraType; import org.papervision3d.materials.utils.MaterialsList; import org.papervision3d.render.QuadrantRenderEngine; import flash.display.*; import flash.events.*; import flash.geom.*; import flash.net.*; import flash.ui.*; import flash.utils.getTimer; import flash.utils.Timer; import org.papervision3d.events.*; import org.papervision3d.lights.*; import org.papervision3d.materials.shadematerials.*; import org.papervision3d.objects.*; import org.papervision3d.view.*; import org.papervision3d.objects.primitives.*; import caurina.transitions.Tweener; [SWF(width="465", height="465", frameRate="60", backgroundColor="0xFFFFFF")] public class Main extends BasicView { // const vars static public const OBJ_SIZE:int = 20; static public const OBJ_COLOR:uint = 0x666666; static private const CAMERA_DISTANCE:int = 1000; // vars for Box2D private var worldWidth:Number; private var worldHeight:Number; private var m_iterations:int; private var m_wallWidth:Number; private var m_wallHeight:Number; private var m_timeStep:Number; private var m_physScale:Number; private var m_world:b2World; private var m_mouseJoint:b2MouseJoint; private var m_draggedBody:b2Body; private var mouseXWorldPhys:Number; private var mouseYWorldPhys:Number; private var isMouseDown:Boolean; private var arrayIndex:int; // array of objs private var pv3dObjsArr:Vector.<DisplayObject3D> = new Vector.<DisplayObject3D>(); private var box3dSpapesArr:Vector.<b2Body> = new Vector.<b2Body>(); // pv3d objs private var light:PointLight3D; private var mat:FlatShadeMaterial; // timer count private var timerCnt:int = 0; /** * Constructor */ public function Main() { stage.quality = StageQuality.MEDIUM; Mouse.cursor = MouseCursor.HAND; // init PV3D super(stage.stageWidth, stage.stageHeight, false, false, CameraType.FREE); // init PV3D World createPaervision3dWorld(); // init Box2D World createBox2dWorld() // addEvent addEventListener(Event.ENTER_FRAME, enterFrameHandler); // Backgound createBackGround(); //cerateFullScreenBtn(); // mouse interactive stage.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown); stage.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMove); stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp); stage.addEventListener(MouseEvent.MOUSE_WHEEL, onMouseWheel); } /** * Create Papervision3D World */ private function createPaervision3dWorld():void { camera.x = 0; camera.z = -CAMERA_DISTANCE; // heavy.... //renderer = new QuadrantRenderEngine(QuadrantRenderEngine.CORRECT_Z_FILTER); // create light light = new PointLight3D(); light.z = -100; mat = new FlatShadeMaterial(light, OBJ_COLOR); ballMat = new FlatShadeMaterial(light, 0x990000); cameraTarget = new DisplayObject3D(); cameraTarget.x = -50; cameraTarget.y = 50; } /** * Create Box2D World */ private function createBox2dWorld():void { // init Box2D worldWidth = stage.stageWidth; worldHeight = stage.stageHeight; m_iterations = 10; m_timeStep = 1 / stage.frameRate; m_physScale = 60; var worldAABB:b2AABB = new b2AABB(); worldAABB.lowerBound.Set( -1000, -1000); worldAABB.upperBound.Set(1000, 1000); var gravity:b2Vec2 = new b2Vec2(0, 10); var doSleep:Boolean = true; m_world = new b2World(worldAABB, gravity, doSleep); var dbgDraw:b2DebugDraw = new b2DebugDraw(); dbgDraw.m_sprite = this; dbgDraw.m_drawScale = SCALE; dbgDraw.m_fillAlpha = 0.3; dbgDraw.m_lineThickness = 1.0; dbgDraw.m_alpha = 1.0; dbgDraw.m_xformScale = 1.0 dbgDraw.m_drawFlags = b2DebugDraw.e_shapeBit; m_world.SetDebugDraw(dbgDraw); // walls for Box2D createPolygon(stage.stageWidth / 2 / SCALE, 1.0, 354, 1.1, 0.1); createPolygon(stage.stageWidth / 4 / SCALE, 2.1, 20, 1.2, 0.1); createPolygon(stage.stageWidth / 2 / SCALE, 3.2, 354, 1.1, 0.1); createPolygon(stage.stageWidth / 4 / SCALE, 4.0, 12, 2.3, 0.1); createPolygon(0.5, 5.1, 0, 6, 0.5); createPolygon(0, stage.stageHeight / 2 / SCALE, 90, stage.stageHeight / 2 / SCALE, 0.1); createPolygon(3.32, stage.stageHeight / 2 / SCALE, 90, 1.5, 0.1); createPolygon(4.58, stage.stageHeight / 2 / SCALE, 90, stage.stageHeight / SCALE, 0.1); // walls for PV3D addCubeAtPv3dWorldNoSave(stage.stageWidth / 2 / SCALE, 1.0, 354, 1.1, 0.1); addCubeAtPv3dWorldNoSave(stage.stageWidth / 4 / SCALE, 2.1, 20, 1.2, 0.1); addCubeAtPv3dWorldNoSave(stage.stageWidth / 2 / SCALE, 3.2, 354, 1.1, 0.1); addCubeAtPv3dWorldNoSave(stage.stageWidth / 4 / SCALE, 4.0, 12, 2.3, 0.1); addCubeAtPv3dWorldNoSave(0.5, 5.1, 0, 6, 0.5); addCubeAtPv3dWorldNoSave(0, stage.stageHeight / 2 / SCALE, 90, stage.stageHeight / 2 / SCALE, 0.1); addCubeAtPv3dWorldNoSave(3.32, stage.stageHeight / 2 / SCALE, 90, 1.5, 0.1); addCubeAtPv3dWorldNoSave(4.58, stage.stageHeight / 2 / SCALE, 90, stage.stageHeight / SCALE, 0.1); // elevator for (var i:int = 0; i < 14; i++) { addCubeAtPv3dWorld(0.23, 0.1, true); if (i % 2) addRectAtBox2dWorld(3.7, i * 0.4, 0, 0.23, 0.1, "elevator"); else addRectAtBox2dWorld(4.2, i * 0.4, 0, 0.23, 0.1, "elevator"); } // balls for (i = 0; i < 4; i++) { addSphereAtPv3dWorld(40, 30, OBJ_SIZE); addCircleAtBox2dWorld(40, 30, OBJ_SIZE); } } private function addCubeAtPv3dWorldNoSave(posX:Number, posY:Number, degree:Number, hx:Number, hy:Number, id:String = "", density:Number = 0.0, restitution:Number = 0.0, setMass:Boolean = false):void { var obj3d:DisplayObject3D = scene.addChild( new Cube( new MaterialsList( { all: mat } ), hx * m_physScale * 2, 30, hy * m_physScale * 2)); obj3d.x = + posX * m_physScale - worldWidth / 2; obj3d.y = - posY * m_physScale + worldHeight / 2; obj3d.rotationZ = - degree } /** * AddItem at Papervision3D World */ private function addSphereAtPv3dWorld(posX:Number, posY:Number, radius:Number):void { var obj3d:DisplayObject3D = scene.addChild(new Sphere(ballMat, radius / 2, 6, 5)); pv3dObjsArr.push(obj3d); } /** * AddItem at Papervision3D World */ private function addCubeAtPv3dWorld(hx:Number, hy:Number, isSaveArray:Boolean):void { var obj3d:DisplayObject3D = scene.addChild( new Cube( new MaterialsList( { all: mat } ), hx * m_physScale * 2, hy * m_physScale * 2, 10)); if(isSaveArray) pv3dObjsArr.push(obj3d); } /** * AddItem at Box2D World */ private function addCircleAtBox2dWorld(posX:Number, posY:Number, radius:Number):void { var obj3d:DisplayObject3D = pv3dObjsArr[pv3dObjsArr.length - 1]; var circleShape:b2CircleDef = new b2CircleDef(); circleShape.radius = radius / m_physScale / 2; circleShape.density = 1; circleShape.friction = 1; circleShape.restitution = 0.6; var bodyDef:b2BodyDef = new b2BodyDef(); bodyDef.position.Set((posX + worldWidth / 2) / m_physScale, (posY + worldHeight / 2) / m_physScale); bodyDef.userData = { id:"", obj:obj3d }; var body:b2Body = m_world.CreateBody(bodyDef); body.CreateShape(circleShape); //body.SetUserData( { obj:obj3d } ); body.SetMassFromShapes(); box3dSpapesArr.push(body); } /** * AddItem at Box2D World */ private function addRectAtBox2dWorld( posX:Number, posY:Number, degree:Number, hx:Number, hy:Number, id:String = "", density:Number = 0.0, restitution:Number = 0.0, setMass:Boolean = false):void { var obj3d:DisplayObject3D = pv3dObjsArr[pv3dObjsArr.length - 1]; var bodyDef:b2BodyDef = new b2BodyDef(); bodyDef.position.Set(posX, posY); bodyDef.angle = degree * Math.PI / 180; if (id) bodyDef.userData = { id:id, obj:obj3d }; var blockShape:b2PolygonDef = new b2PolygonDef(); blockShape.SetAsBox(hx, hy); blockShape.density = density; blockShape.restitution = restitution; var body:b2Body = m_world.CreateBody(bodyDef); body.CreateShape(blockShape); //body.SetUserData(obj3d); if (setMass) body.SetMassFromShapes(); } /** * Enter Frame * @param event */ private function enterFrameHandler(event:Event):void { // update Box2D step m_world.Step(m_timeStep, m_iterations); // sync position to PV3D from Box2D for (var bb:b2Body = m_world.GetBodyList(); bb; bb = bb.GetNext()) { if (bb.m_userData) { if (bb.m_userData.id == "elevator") { bb.SetXForm(new b2Vec2(bb.GetPosition().x, bb.GetPosition().y - 0.02), 0); if (bb.GetPosition().y < -0.1) bb.SetXForm(new b2Vec2(bb.GetPosition().x, stage.stageHeight / SCALE + 1), 0); if (bb.GetPosition().y < 0.8) bb.SetXForm(bb.GetPosition(), bb.GetAngle() - 0.2); } if (bb.m_userData.obj is DisplayObject3D) { var obj:DisplayObject3D = bb.m_userData.obj; obj.x = bb.GetPosition().x * m_physScale - worldWidth / 2; obj.y = -bb.GetPosition().y * m_physScale + worldHeight / 2; obj.rotationZ = -bb.GetAngle() * (180 / Math.PI); } } } // Mouse Interactive easePitch += (cameraPitch - easePitch) * 0.2 easeYaw += (cameraYaw - easeYaw) * 0.2 camera.orbit(easePitch, easeYaw, true, cameraTarget); camera.zoom += (easeZoom - camera.zoom) * 0.1; singleRender(); } private function createBackGround():void { graphics.beginFill(0xFFFFFF); graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight); } //------------------------------------------------------------------- // forked from Box2Dの練習 // http://wonderfl.kayac.com/code/5fdd0af34ca9e7a3369f74c52cca9ddb85d136e4 //------------------------------------------------------------------- private const SCALE:uint = 100; private function createPolygon(posX:Number, posY:Number, degree:Number, hx:Number, hy:Number, id:String = "", density:Number = 0.0, restitution:Number = 0.0, setMass:Boolean = false):void { var blockBodyDef:b2BodyDef = new b2BodyDef(); blockBodyDef.position.Set(posX, posY); blockBodyDef.angle = degree * Math.PI / 180; if (id) { blockBodyDef.userData = new Object(); blockBodyDef.userData.id = id; } var blockShape:b2PolygonDef = new b2PolygonDef(); blockShape.SetAsBox(hx, hy); blockShape.density = density; blockShape.restitution = restitution; var blockBody:b2Body = m_world.CreateBody(blockBodyDef); blockBody.CreateShape(blockShape); if (setMass) blockBody.SetMassFromShapes(); } // ---------------------------------------------- // Mouse Interactive // http://wonderfl.kayac.com/code/2af71dd58ee46ba3ebf7496c63b4726c84a20980 // ---------------------------------------------- private var isOribiting:Boolean; private var cameraPitch:Number = 90; private var cameraYaw:Number = 270; private var cameraTarget:DisplayObject3D = DisplayObject3D.ZERO; private var previousMouseX:Number; private var previousMouseY:Number; private var easePitch:Number = 90; private var easeYaw:Number = 270; private var easeZoom:Number = 100; private var ballMat:FlatShadeMaterial; private function onMouseDown(event:MouseEvent):void { isOribiting = true; previousMouseX = event.stageX; previousMouseY = event.stageY; singleRender(); } private function onMouseUp(event:MouseEvent):void { isOribiting = false; } private function onMouseMove(event:MouseEvent):void { var differenceX:Number = event.stageX - previousMouseX; var differenceY:Number = event.stageY - previousMouseY; if(isOribiting) { cameraPitch += differenceY * 0.25; cameraYaw += differenceX * 0.25; cameraPitch %= 360; cameraPitch = cameraPitch > 0 ? cameraPitch : 0.0001; cameraPitch = cameraPitch < 180 ? cameraPitch : 179.9999; previousMouseX = event.stageX; previousMouseY = event.stageY; } } private function onMouseWheel(e:MouseEvent):void { easeZoom += e.delta; easeZoom = Math.max(1, easeZoom); } } }