示例#1
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 public WeldJointDef()
 {
     type = JointType.WELD;
     localAnchorA = new Vec2();
     localAnchorB = new Vec2();
     referenceAngle = 0.0f;
 }
示例#2
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 /// <summary>
 /// Initialize the bodies, anchors, axis, and reference angle using the world anchor and world axis.
 /// </summary>
 public virtual void initialize(Body bA, Body bB, Vec2 anchor)
 {
     bodyA = bA;
     bodyB = bB;
     bA.getLocalPointToOut(anchor, localAnchorA);
     bB.getLocalPointToOut(anchor, localAnchorB);
 }
 public ContactPositionConstraint()
 {
     for (int i = 0; i < LocalPoints.Length; i++)
     {
         LocalPoints[i] = new Vec2();
     }
 }
示例#4
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 /// <summary>
 /// Initialize the bodies, anchors, axis, and reference angle using the world anchor and world axis.
 /// </summary>
 public void Initialize(Body bA, Body bB, Vec2 anchor)
 {
     BodyA = bA;
     BodyB = bB;
     bA.GetLocalPointToOut(anchor, LocalAnchorA);
     bB.GetLocalPointToOut(anchor, LocalAnchorB);
 }
示例#5
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 public WeldJointDef()
 {
     Type = JointType.Weld;
     LocalAnchorA = new Vec2();
     LocalAnchorB = new Vec2();
     ReferenceAngle = 0.0f;
 }
示例#6
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 public FrictionJointDef()
 {
     Type = JointType.Friction;
     LocalAnchorA = new Vec2();
     LocalAnchorB = new Vec2();
     MaxForce = 0f;
     MaxTorque = 0f;
 }
示例#7
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 public FrictionJointDef()
 {
     type = JointType.FRICTION;
     localAnchorA = new Vec2();
     localAnchorB = new Vec2();
     maxForce = 0f;
     maxTorque = 0f;
 }
示例#8
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 protected internal Vec2[] GetInitializedArray(int argLength)
 {
     var ray = new Vec2[argLength];
     for (int i = 0; i < ray.Length; i++)
     {
         ray[i] = new Vec2();
     }
     return ray;
 }
示例#9
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 public WorldManifold()
 {
     normal = new Vec2();
     points = new Vec2[Settings.maxManifoldPoints];
     for (int i = 0; i < Settings.maxManifoldPoints; i++)
     {
         points[i] = new Vec2();
     }
 }
示例#10
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 public WorldManifold()
 {
     Normal = new Vec2();
     Points = new Vec2[Settings.MAX_MANIFOLD_POINTS];
     for (int i = 0; i < Settings.MAX_MANIFOLD_POINTS; i++)
     {
         Points[i] = new Vec2();
     }
 }
示例#11
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 /// <summary> creates a manifold with 0 points, with it's points array full of instantiated ManifoldPoints.</summary>
 public Manifold()
 {
     points = new ManifoldPoint[Settings.maxManifoldPoints];
     for (int i = 0; i < Settings.maxManifoldPoints; i++)
     {
         points[i] = new ManifoldPoint();
     }
     localNormal = new Vec2();
     localPoint = new Vec2();
     pointCount = 0;
 }
示例#12
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 public PulleyJointDef()
 {
     Type = JointType.Pulley;
     GroundAnchorA = new Vec2(-1.0f, 1.0f);
     GroundAnchorB = new Vec2(1.0f, 1.0f);
     LocalAnchorA = new Vec2(-1.0f, 0.0f);
     LocalAnchorB = new Vec2(1.0f, 0.0f);
     LengthA = 0.0f;
     LengthB = 0.0f;
     Ratio = 1.0f;
     CollideConnected = true;
 }
示例#13
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        /// <param name="argWorldPool"></param>
        /// <param name="def"></param>
        public FrictionJoint(IWorldPool argWorldPool, FrictionJointDef def)
            : base(argWorldPool, def)
        {
            m_localAnchorA = new Vec2(def.localAnchorA);
            m_localAnchorB = new Vec2(def.localAnchorB);

            m_linearImpulse = new Vec2();
            m_angularImpulse = 0.0f;

            m_maxForce = def.maxForce;
            m_maxTorque = def.maxTorque;
        }
示例#14
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 public PulleyJointDef()
 {
     type = JointType.PULLEY;
     groundAnchorA = new Vec2(-1.0f, 1.0f);
     groundAnchorB = new Vec2(1.0f, 1.0f);
     localAnchorA = new Vec2(-1.0f, 0.0f);
     localAnchorB = new Vec2(1.0f, 0.0f);
     lengthA = 0.0f;
     lengthB = 0.0f;
     ratio = 1.0f;
     collideConnected = true;
 }
示例#15
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 public PolygonShape()
     : base(ShapeType.Polygon)
 {
     VertexCount = 0;
     Vertices = new Vec2[Settings.MAX_POLYGON_VERTICES];
     for (int i = 0; i < Vertices.Length; i++)
     {
         Vertices[i] = new Vec2();
     }
     Normals = new Vec2[Settings.MAX_POLYGON_VERTICES];
     for (int i = 0; i < Normals.Length; i++)
     {
         Normals[i] = new Vec2();
     }
     Radius = Settings.POLYGON_RADIUS;
     Centroid.SetZero();
 }
示例#16
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        static void Main(string[] args)
        {
            // Static Body
            Vec2 gravity = new Vec2(0, -10);
            bool doSleep = true;
            World world = new World(gravity);
            world.SleepingAllowed = doSleep;
            BodyDef groundBodyDef = new BodyDef();
            groundBodyDef.position.set_Renamed(0, -10);
            Body groundBody = world.createBody(groundBodyDef);
            PolygonShape groundBox = new PolygonShape();
            groundBox.setAsBox(50, 10);
            groundBody.createFixture(groundBox, 0);

            // Dynamic Body
            BodyDef bodyDef = new BodyDef();
            bodyDef.type = BodyType.DYNAMIC;
            bodyDef.position.set_Renamed(0, 4);
            Body body = world.createBody(bodyDef);
            PolygonShape dynamicBox = new PolygonShape();
            dynamicBox.setAsBox(1, 1);
            FixtureDef fixtureDef = new FixtureDef();
            fixtureDef.shape = dynamicBox;
            fixtureDef.density = 1;
            fixtureDef.friction = 0.3f;
            body.createFixture(fixtureDef);

            // Setup world
            float timeStep = 1.0f / 60.0f;
            int velocityIterations = 6;
            int positionIterations = 2;

            // Run loop
            for (int i = 0; i < 60; ++i)
            {
                world.step(timeStep, velocityIterations, positionIterations);
                Vec2 position = body.Position;
                float angle = body.Angle;
                Console.WriteLine("{0:0.00} {1:0.00} {2:0.00}", position.x, position.y, angle);
            }
        }
示例#17
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 public override void getAnchorB(Vec2 argOut)
 {
     m_bodyB.getWorldPointToOut(m_localAnchorB, argOut);
 }
示例#18
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        public PrismaticJoint(IWorldPool argWorld, PrismaticJointDef def)
            : base(argWorld, def)
        {
            m_localAnchorA = new Vec2(def.localAnchorA);
            m_localAnchorB = new Vec2(def.localAnchorB);
            m_localXAxisA = new Vec2(def.localAxisA);
            m_localXAxisA.normalize();
            m_localYAxisA = new Vec2();
            Vec2.crossToOutUnsafe(1f, m_localXAxisA, m_localYAxisA);
            m_referenceAngle = def.referenceAngle;

            m_impulse = new Vec3();
            m_motorMass = 0.0f;
            m_motorImpulse = 0.0f;

            m_lowerTranslation = def.lowerTranslation;
            m_upperTranslation = def.upperTranslation;
            m_maxMotorForce = def.maxMotorForce;
            m_motorSpeed = def.motorSpeed;
            m_enableLimit = def.enableLimit;
            m_enableMotor = def.enableMotor;
            m_limitState = LimitState.INACTIVE;

            m_K = new Mat33();
            m_axis = new Vec2();
            m_perp = new Vec2();
        }
示例#19
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 public override void getReactionForce(float inv_dt, Vec2 argOut)
 {
     argOut.set_Renamed(m_uB).mulLocal(m_impulse).mulLocal(inv_dt);
 }
示例#20
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 /// <summary>
 /// Ray-cast the world for all fixtures in the path of the ray. Your callback controls whether you
 /// get the closest point, any point, or n-points. The ray-cast ignores shapes that contain the
 /// starting point.
 /// </summary>
 /// <param name="callback">a user implemented callback class.</param>
 /// <param name="point1">the ray starting point</param>
 /// <param name="point2">the ray ending point</param>
 public virtual void raycast(RayCastCallback callback, Vec2 point1, Vec2 point2)
 {
     wrcwrapper.broadPhase = m_contactManager.m_broadPhase;
     wrcwrapper.callback = callback;
     input.maxFraction = 1.0f;
     input.p1.set_Renamed(point1);
     input.p2.set_Renamed(point2);
     m_contactManager.m_broadPhase.raycast(wrcwrapper, input);
 }
示例#21
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        /// <summary>
        /// Construct a world object.
        /// </summary>
        /// <param name="gravity">the world gravity vector.</param>
        /// <param name="doSleep">improve performance by not simulating inactive bodies.</param>
        public World(Vec2 gravity, IWorldPool argPool)
        {
            contactStacks = new ContactRegister[ShapeTypesCount][];
            for (int i = 0; i < ShapeTypesCount; i++)
            {
                contactStacks[i] = new ContactRegister[ShapeTypesCount];
            }

            pool = argPool;
            m_destructionListener = null;
            m_debugDraw = null;

            m_bodyList = null;
            m_jointList = null;

            m_bodyCount = 0;
            m_jointCount = 0;

            m_warmStarting = true;
            m_continuousPhysics = true;
            m_subStepping = false;
            m_stepComplete = true;

            m_allowSleep = true;
            m_gravity.set_Renamed(gravity);

            m_flags = CLEAR_FORCES;

            m_inv_dt0 = 0f;

            m_contactManager = new ContactManager(this);
            m_profile = new Profile();

            initializeRegisters();
        }
示例#22
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        private Body[] stack = new Body[10]; // TODO djm find a good initial stack number;

        #endregion Fields

        #region Constructors

        public World(Vec2 gravity)
            : this(gravity, new DefaultWorldPool(WORLD_POOL_SIZE, WORLD_POOL_CONTAINER_SIZE))
        {
        }
示例#23
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 public PrismaticJointDef()
 {
     type = JointType.PRISMATIC;
     localAnchorA = new Vec2();
     localAnchorB = new Vec2();
     localAxisA = new Vec2(1.0f, 0.0f);
     referenceAngle = 0.0f;
     enableLimit = false;
     lowerTranslation = 0.0f;
     upperTranslation = 0.0f;
     enableMotor = false;
     maxMotorForce = 0.0f;
     motorSpeed = 0.0f;
 }
示例#24
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文件: Body.cs 项目: thdtjsdn/box2dnet
 public void getLocalVectorToOutUnsafe(Vec2 worldVector, Vec2 out_Renamed)
 {
     Rot.mulTransUnsafe(m_xf.q, worldVector, out_Renamed);
 }
示例#25
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文件: Body.cs 项目: thdtjsdn/box2dnet
 /// <summary>
 /// Gets a local vector given a world vector.
 /// </summary>
 /// <param name="a">vector in world coordinates.</param>
 /// <returns>the corresponding local vector.</returns>
 public Vec2 getLocalVector(Vec2 worldVector)
 {
     Vec2 out_Renamed = new Vec2();
     getLocalVectorToOut(worldVector, out_Renamed);
     return out_Renamed;
 }
示例#26
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 public override void getReactionForce(float inv_dt, Vec2 argOut)
 {
     Vec2 temp = pool.popVec2();
     temp.set_Renamed(m_axis).mulLocal(m_motorImpulse + m_impulse.z);
     argOut.set_Renamed(m_perp).mulLocal(m_impulse.x).addLocal(temp).mulLocal(inv_dt);
     pool.pushVec2(1);
 }
示例#27
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 /// <summary>
 /// Call MoveProxy as many times as you like, then when you are done call UpdatePairs to finalized
 /// the proxy pairs (for your time step).
 /// </summary>
 public void MoveProxy(int proxyId, AABB aabb, Vec2 displacement)
 {
     bool buffer = m_tree.MoveProxy(proxyId, aabb, displacement);
     if (buffer)
     {
         BufferMove(proxyId);
     }
 }
示例#28
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 /// <summary>
 /// Initialize the bodies, anchors, axis, and reference angle using the world anchor and world axis.
 /// </summary>
 public virtual void initialize(Body b1, Body b2, Vec2 anchor, Vec2 axis)
 {
     bodyA = b1;
     bodyB = b2;
     bodyA.getLocalPointToOut(anchor, localAnchorA);
     bodyB.getLocalPointToOut(anchor, localAnchorB);
     bodyA.getLocalVectorToOut(axis, localAxisA);
     referenceAngle = bodyB.Angle - bodyA.Angle;
 }
示例#29
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 /// <summary>
 /// Initialize the bodies, anchors, and reference angle using a world anchor point.
 /// </summary>
 /// <param name="bA"></param>
 /// <param name="bB"></param>
 /// <param name="anchor"></param>
 public virtual void initialize(Body bA, Body bB, Vec2 anchor)
 {
     bodyA = bA;
     bodyB = bB;
     bodyA.getLocalPointToOut(anchor, localAnchorA);
     bodyB.getLocalPointToOut(anchor, localAnchorB);
     referenceAngle = bodyB.Angle - bodyA.Angle;
 }
示例#30
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文件: Body.cs 项目: thdtjsdn/box2dnet
 public void getLocalPointToOut(Vec2 worldPoint, Vec2 out_Renamed)
 {
     Transform.mulTransToOut(m_xf, worldPoint, out_Renamed);
 }