Esempio n. 1
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        //--------------- Internals Below -------------------

        /** @private */
        public b2MouseJoint(b2MouseJointDef def) : base(def)
        {
            //b2Settings.b2Assert(def.target.IsValid());
            //b2Settings.b2Assert(b2Math.b2IsValid(def.maxForce) && def.maxForce > 0.0);
            //b2Settings.b2Assert(b2Math.b2IsValid(def.frequencyHz) && def.frequencyHz > 0.0);
            //b2Settings.b2Assert(b2Math.b2IsValid(def.dampingRatio) && def.dampingRatio > 0.0);

            m_target.SetV(def.target);
            //m_localAnchor = b2MulT(m_bodyB.m_xf, m_target);
            float   tX   = m_target.x - m_bodyB.m_xf.position.x;
            float   tY   = m_target.y - m_bodyB.m_xf.position.y;
            b2Mat22 tMat = m_bodyB.m_xf.R;

            m_localAnchor.x = (tX * tMat.col1.x + tY * tMat.col1.y);
            m_localAnchor.y = (tX * tMat.col2.x + tY * tMat.col2.y);

            m_maxForce = def.maxForce;
            m_impulse.SetZero();

            m_frequencyHz  = def.frequencyHz;
            m_dampingRatio = def.dampingRatio;

            m_beta  = 0.0f;
            m_gamma = 0.0f;
        }
Esempio n. 2
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        public virtual bool MouseDown(b2Vec2 p)
        {
            m_mouseWorld = p;

            if (m_mouseJoint != null)
            {
                return false;
            }

            // Make a small box.
            b2AABB aabb = new b2AABB();
            b2Vec2 d = new b2Vec2();
            d.Set(0.001f, 0.001f);
            aabb.LowerBound = p - d;
            aabb.UpperBound = p + d;

            // Query the world for overlapping shapes.
            QueryCallback callback = new QueryCallback(p);
            m_world.QueryAABB(callback, aabb);

            if (callback.m_fixture != null)
            {

                b2Body body = callback.m_fixture.Body;
                b2MouseJointDef md = new b2MouseJointDef();
                md.BodyA = m_groundBody;
                md.BodyB = body;
                md.target = p;
                md.maxForce = 1000.0f * body.Mass;
                m_mouseJoint = (b2MouseJoint)m_world.CreateJoint(md);
                body.SetAwake(true);
                return true;

            }
            else
            {

                //Como no ha encontrado un objeto empezamos el arrastre
                IsArrastring = true;
                originPosition = new CCPoint(p.x, p.y);
                return true;

            }
        }
Esempio n. 3
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        public b2MouseJoint(b2MouseJointDef def)
            : base(def)
        {
            Debug.Assert(def.target.IsValid());
            Debug.Assert(b2Math.b2IsValid(def.maxForce) && def.maxForce >= 0.0f);
            Debug.Assert(b2Math.b2IsValid(def.frequencyHz) && def.frequencyHz >= 0.0f);
            Debug.Assert(b2Math.b2IsValid(def.dampingRatio) && def.dampingRatio >= 0.0f);

            m_targetA = def.target;
            m_localAnchorB = b2Math.b2MulT(m_bodyB.Transform, m_targetA);

            m_maxForce = def.maxForce;
            m_impulse.SetZero();

            m_frequencyHz = def.frequencyHz;
            m_dampingRatio = def.dampingRatio;

            m_beta = 0.0f;
            m_gamma = 0.0f;
        }
Esempio n. 4
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        public b2MouseJoint(b2MouseJointDef def)
            : base(def)
        {
            Debug.Assert(def.target.IsValid());
            Debug.Assert(b2Math.b2IsValid(def.maxForce) && def.maxForce >= 0.0f);
            Debug.Assert(b2Math.b2IsValid(def.frequencyHz) && def.frequencyHz >= 0.0f);
            Debug.Assert(b2Math.b2IsValid(def.dampingRatio) && def.dampingRatio >= 0.0f);

            m_targetA      = def.target;
            m_localAnchorB = b2Math.b2MulT(m_bodyB.Transform, m_targetA);

            m_maxForce = def.maxForce;
            m_impulse.SetZero();

            m_frequencyHz  = def.frequencyHz;
            m_dampingRatio = def.dampingRatio;

            m_beta  = 0.0f;
            m_gamma = 0.0f;
        }
Esempio n. 5
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        public virtual bool MouseDown(b2Vec2 p)
        {
            m_mouseWorld = p;

            if (m_mouseJoint != null)
            {
                return false;
            }

            // Make a small box.
            b2AABB aabb = new b2AABB();
            b2Vec2 d = new b2Vec2();
            d.Set(0.001f, 0.001f);
            aabb.LowerBound = p - d;
            aabb.UpperBound = p + d;

            // Query the world for overlapping shapes.
            QueryCallback callback = new QueryCallback(p);
            m_world.QueryAABB(callback, aabb);

            if (callback.m_fixture != null)
            {
                b2Body body = callback.m_fixture.Body;
                b2MouseJointDef md = new b2MouseJointDef();
                md.BodyA = m_groundBody;
                md.BodyB = body;
                md.target = p;
                md.maxForce = 1000.0f * body.Mass;
                m_mouseJoint = (b2MouseJoint) m_world.CreateJoint(md);
                body.SetAwake(true);
                return true;
            }
            return false;
        }
Esempio n. 6
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        // SIN REVISAR
        b2Joint j2b2Joint(b2World world, JObject jointValue)
        {
            b2Joint joint = null;

            int bodyIndexA = (int)jointValue["bodyA"];
            int bodyIndexB = (int)jointValue["bodyB"];
            if (bodyIndexA >= m_bodies.Count || bodyIndexB >= m_bodies.Count)
                return null;

            // set features common to all joints
            //var bodyA = m_bodies[bodyIndexA];
            //var bodyB = m_bodies[bodyIndexB];
            //var collideConnected = jointValue["collideConnected"] == null ? false : (bool)jointValue["collideConnected"];

            // keep these in scope after the if/else below
            b2RevoluteJointDef revoluteDef;
            b2PrismaticJointDef prismaticDef;
            b2DistanceJointDef distanceDef;
            b2PulleyJointDef pulleyDef;
            b2MouseJointDef mouseDef;
            b2GearJointDef gearDef;
            //b2WheelJoint wheelDef;
            b2WeldJointDef weldDef;
            b2FrictionJointDef frictionDef;
            b2RopeJointDef ropeDef;
            //MotorJoint motorDef;

            b2JointDef jointDef = null;

            b2Vec2 mouseJointTarget = new b2Vec2(0, 0);

            string type = jointValue["type"].ToString() == null ? "" : jointValue["type"].ToString();

            if (type == "revolute")
            {

                jointDef = revoluteDef = new b2RevoluteJointDef(); // JointFactory.CreateRevoluteJoint(world, bodyA, bodyB, jsonToVec("anchorB", jointValue));
                revoluteDef.localAnchorA = jsonToVec("anchorA", jointValue);
                revoluteDef.localAnchorB = jsonToVec("anchorB", jointValue);
                revoluteDef.referenceAngle = jsonToFloat("refAngle", jointValue);
                revoluteDef.enableLimit = jointValue["enableLimit"] == null ? false : (bool)jointValue["enableLimit"];
                revoluteDef.lowerAngle = jsonToFloat("lowerLimit", jointValue);
                revoluteDef.upperAngle = jsonToFloat("upperLimit", jointValue);
                revoluteDef.enableMotor = jointValue["enableMotor"] == null ? false : (bool)jointValue["enableMotor"];
                revoluteDef.motorSpeed = jsonToFloat("motorSpeed", jointValue);
                revoluteDef.maxMotorTorque = jsonToFloat("maxMotorTorque", jointValue);
            }
            else if (type == "prismatic")
            {
                jointDef = prismaticDef = new b2PrismaticJointDef(); //JointFactory.CreatePrismaticJoint(world, bodyA, bodyB, localAnchorB, localAxis);

                prismaticDef.localAnchorA = jsonToVec("anchorA", jointValue);
                prismaticDef.localAnchorB = jsonToVec("anchorB", jointValue);

                if (jointValue["localAxisA"] != null)
                    prismaticDef.localAxisA = jsonToVec("localAxisA", jointValue);
                else
                    prismaticDef.localAxisA = jsonToVec("localAxis1", jointValue);

                prismaticDef.referenceAngle = jsonToFloat("refAngle", jointValue);

                prismaticDef.enableLimit = jointValue["enableLimit"] == null ? false : (bool)jointValue["enableLimit"];

                prismaticDef.lowerTranslation = jsonToFloat("lowerLimit", jointValue);
                prismaticDef.upperTranslation = jsonToFloat("upperLimit", jointValue);

                prismaticDef.enableMotor = jointValue["enableMotor"] == null ? false : (bool)jointValue["enableMotor"];

                prismaticDef.motorSpeed = jsonToFloat("motorSpeed", jointValue);
                prismaticDef.maxMotorForce = jsonToFloat("maxMotorForce", jointValue);

            }
            else if (type == "distance")
            {

                jointDef = distanceDef = new b2DistanceJointDef();
                distanceDef.localAnchorA = jsonToVec("anchorA", jointValue);
                distanceDef.localAnchorB = jsonToVec("anchorB", jointValue);
                distanceDef.length = jsonToFloat("length", jointValue);
                distanceDef.frequencyHz = jsonToFloat("frequency", jointValue);
                distanceDef.dampingRatio = jsonToFloat("dampingRatio", jointValue);

            }
            else if (type == "pulley")
            {

                jointDef = pulleyDef = new b2PulleyJointDef();
                pulleyDef.groundAnchorA = jsonToVec("groundAnchorA", jointValue);
                pulleyDef.groundAnchorB = jsonToVec("groundAnchorB", jointValue);
                pulleyDef.localAnchorA = jsonToVec("anchorA", jointValue);
                pulleyDef.localAnchorB = jsonToVec("anchorB", jointValue);
                pulleyDef.lengthA = jsonToFloat("lengthA", jointValue);
                pulleyDef.lengthB = jsonToFloat("lengthB", jointValue);
                pulleyDef.ratio = jsonToFloat("ratio", jointValue);

            }
            else if (type == "mouse")
            {
                jointDef = mouseDef = new b2MouseJointDef();
                mouseJointTarget = jsonToVec("target", jointValue);
                mouseDef.target = jsonToVec("anchorB", jointValue);// alter after creating joint
                mouseDef.maxForce = jsonToFloat("maxForce", jointValue);
                mouseDef.frequencyHz = jsonToFloat("frequency", jointValue);
                mouseDef.dampingRatio = jsonToFloat("dampingRatio", jointValue);
            }
            // Gear joints are apparently not implemented in JBox2D yet, but
            // when they are, commenting out the following section should work.

            else if (type == "gear")
            {

                jointDef = gearDef = new b2GearJointDef();  //JointFactory.CreateGearJoint(world, joint1, joint2, ratio);
                int jointIndex1 = (int)jointValue["joint1"];
                int jointIndex2 = (int)jointValue["joint2"];
                var joint1 = m_joints[jointIndex1];
                var joint2 = m_joints[jointIndex2];
                var ratio = jsonToFloat("ratio", jointValue);

                //joint = gearDef = JointFactory.CreateGearJoint(world, joint1, joint2, ratio);

            }

            // Wheel joints are apparently not implemented in JBox2D yet, but
            // when they are, commenting out the following section should work.

            else if (type == "wheel")
            {

                jointDef = revoluteDef = new b2RevoluteJointDef();
                revoluteDef.localAnchorA = jsonToVec("anchorA", jointValue);
                revoluteDef.localAnchorB = jsonToVec("anchorB", jointValue);

                revoluteDef.enableMotor = jointValue["enableMotor"] == null ? false : (bool)jointValue["enableMotor"];

                revoluteDef.motorSpeed = jsonToFloat("motorSpeed", jointValue);
                revoluteDef.maxMotorTorque = jsonToFloat("maxMotorTorque", jointValue);

                //jointDef = wheelDef = new b2WheelJointDef(); //JointFactory.CreateWheelJoint(world, bodyA, bodyB, localAnchorB, localAxisA);

                //var localAnchorA = jsonToVec("anchorA", jointValue);
                //var localAnchorB = (jsonToVec("anchorB", jointValue));
                //var localAxisA = (jsonToVec("localAxisA", jointValue));
                //var enableMotor = jointValue["enableMotor"] == null ? false : (bool)jointValue["enableMotor"];
                //var motorSpeed = jsonToFloat("motorSpeed", jointValue);
                //var maxMotorTorque = jsonToFloat("maxMotorTorque", jointValue);
                //var frequencyHz = jsonToFloat("springFrequency", jointValue);
                //var dampingRatio = jsonToFloat("springDampingRatio", jointValue);

                //wheelDef.LocalAnchorA = localAnchorA;
                //wheelDef.LocalAnchorB = localAnchorB;
                //wheelDef.MotorEnabled = enableMotor;
                //wheelDef.MotorSpeed = motorSpeed;
                //wheelDef.SpringFrequencyHz = frequencyHz;
                //wheelDef.MaxMotorTorque = maxMotorTorque;
                //wheelDef.SpringDampingRatio = dampingRatio;
            }
            else if (type == "weld")
            {
                jointDef = weldDef = new b2WeldJointDef();
                weldDef.localAnchorA = jsonToVec("anchorA", jointValue);
                weldDef.localAnchorB = jsonToVec("anchorB", jointValue);
                weldDef.referenceAngle = 0;

            }
            else if (type == "friction")
            {
                jointDef = frictionDef = new b2FrictionJointDef();
                frictionDef.localAnchorA = jsonToVec("anchorA", jointValue);
                frictionDef.localAnchorB = jsonToVec("anchorB", jointValue);
                frictionDef.maxForce = jsonToFloat("maxForce", jointValue);
                frictionDef.maxTorque = jsonToFloat("maxTorque", jointValue);
            }
            else if (type == "rope")
            {
                jointDef = ropeDef = new b2RopeJointDef();
                ropeDef.localAnchorA = jsonToVec("anchorA", jointValue);
                ropeDef.localAnchorB = jsonToVec("anchorB", jointValue);
                ropeDef.maxLength = jsonToFloat("maxLength", jointValue);
            }

            //else if (type == "motor")
            //{
            //    var maxForce = jsonToFloat("maxForce", jointValue);
            //    var maxMotorTorque = jsonToFloat("maxTorque", jointValue);
            //    var angularOffset = jsonToFloat("refAngle", jointValue);

            //    joint = motorDef = new MotorJoint(bodyA, bodyB);
            //    world.AddJoint(joint);
            //    motorDef.LinearOffset = jsonToVec("anchorA", jointValue);
            //    motorDef.MaxForce = maxForce;
            //    motorDef.MaxTorque = maxMotorTorque;
            //    motorDef.AngularOffset = angularOffset;
            //}

            if (null != jointDef)
            {
                // set features common to all joints
                jointDef.BodyA = m_bodies[bodyIndexA];
                jointDef.BodyB = m_bodies[bodyIndexB];

                jointDef.CollideConnected = jointValue["collideConnected"] == null ? false : (bool)jointValue["collideConnected"];

                joint = world.CreateJoint(jointDef);

                if (type.Equals("mouse"))
                    ((b2MouseJoint)joint).SetTarget(mouseJointTarget);

                String jointName = jointValue["name"] == null ? "" : (string)jointValue["name"];

                if (!jointName.Equals(""))
                {
                    SetJointName(joint, jointName);
                }
            }

            return joint;
        }