Inheritance: IDisposable
Example #1
0
        /// <summary>
        /// Creates a fixed angle joint.
        /// </summary>
        /// <param name="world">The world.</param>
        /// <param name="body">The body.</param>
        /// <returns></returns>
        public static FixedAngleJoint CreateFixedAngleJoint(World world, Body body)
        {
            FixedAngleJoint angleJoint = new FixedAngleJoint(body);
            world.AddJoint(angleJoint);

            return angleJoint;
        }
Example #2
0
 public static FixedDistanceJoint CreateFixedDistanceJoint(World world, Body body, Vector2 localAnchor,
                                                           Vector2 worldAnchor)
 {
     FixedDistanceJoint distanceJoint = new FixedDistanceJoint(body, localAnchor, worldAnchor);
     world.AddJoint(distanceJoint);
     return distanceJoint;
 }
Example #3
0
 public static DistanceJoint CreateDistanceJoint(World world, Body bodyA, Body bodyB, Vector2 anchorA,
                                                 Vector2 anchorB)
 {
     DistanceJoint distanceJoint = new DistanceJoint(bodyA, bodyB, anchorA, anchorB);
     world.AddJoint(distanceJoint);
     return distanceJoint;
 }
        public override bool IsActiveOn(Body body)
        {
            if (body.PhysicsLogicFilter.IsPhysicsLogicIgnored(_type))
                return false;

            return base.IsActiveOn(body);
        }
Example #5
0
        /// <summary>
        /// Creates an angle joint.
        /// </summary>
        /// <param name="world">The world.</param>
        /// <param name="bodyA">The first body.</param>
        /// <param name="bodyB">The second body.</param>
        /// <returns></returns>
        public static AngleJoint CreateAngleJoint(World world, Body bodyA, Body bodyB)
        {
            AngleJoint angleJoint = new AngleJoint(bodyA, bodyB);
            world.AddJoint(angleJoint);

            return angleJoint;
        }
 public Projectile(SPRWorld sprWorld, Body body, Texture2D texture, Vector2 velocity, float rotation, float life, float width, float height, float power)
     : base(sprWorld, body, texture, width, height, (float)1.0)
 {
     this.m_rotation = rotation;
     this.m_velocity = velocity;
     this.m_Life = life;
     this.m_power = power;
     m_toRemove = new List<Body>();
 }
        public Bot(SPRWorld sprWord, Body body, Bot.Player player, Bot.Type type, SPRAI control, Texture2D texture, float width, float height, float health)
            : base(sprWord, body, texture, width, height, health)
        {
            this.m_player = player;
            this.m_type = type;
            this.m_Control = control;

            this.m_Weapons = new Weapon[4];
        }
Example #8
0
        public SolitudeObject(Vector2 position, World world, Shape shape, float width, float height)
        {
            body = BodyFactory.CreateBody(world, position);

            //currently in wall class:
            fixture = new Fixture(body, shape);
            fixture.OnCollision += new OnCollisionEventHandler(OnCollision);
            //###################

            drawOrigin = new Vector2(width, height);
            drawRectangle = new Rectangle(0, 0, (int)width, (int)height);
        }
 public Entity(SPRWorld sprWorld, Body body, Texture2D texture, float width, float height, float maxHealth)
 {
     this.m_SPRWorld = sprWorld;
     this.m_Body = body;
     m_ID = s_ID++;
     m_Dead = false;
     m_Texture = texture;
     m_Width = width;
     m_Height = height;
     this.m_maxHealth = maxHealth;
     this.m_health = maxHealth;
 }
        /// <summary>
        /// Duplicates the given Body along the given path for approximatly the given copies.
        /// </summary>
        /// <param name="world">The world.</param>
        /// <param name="path">The path.</param>
        /// <param name="shapes">The shapes.</param>
        /// <param name="type">The type.</param>
        /// <param name="copies">The copies.</param>
        /// <returns></returns>
        public static List<Body> EvenlyDistributeShapesAlongPath(World world, Path path, IEnumerable<Shape> shapes,
            BodyType type, int copies, Object userData)
        {
            List<Vector3> centers = path.SubdivideEvenly(copies);
            List<Body> bodyList = new List<Body>();

            for (int i = 0; i < centers.Count; i++)
            {
                Body b = new Body(world);

                // copy the type from original body
                b.BodyType = type;
                b.Position = new Vector2(centers[i].X, centers[i].Y);
                b.Rotation = centers[i].Z;

                foreach (Shape shape in shapes)
                {
                    b.CreateFixture(shape, userData);
                }

                bodyList.Add(b);
            }

            return bodyList;
        }
        /// <summary>
        /// Convert a closed path into a polygon.
        /// Convex decomposition is automatically performed.
        /// </summary>
        /// <param name="path">The path.</param>
        /// <param name="body">The body.</param>
        /// <param name="density">The density.</param>
        /// <param name="subdivisions">The subdivisions.</param>
        public static void ConvertPathToPolygon(Path path, Body body, float density, int subdivisions)
        {
            if (!path.Closed)
                throw new Exception("The path must be closed to convert to a polygon.");

            List<Vector2> verts = path.GetVertices(subdivisions);

            List<Vertices> decomposedVerts = EarclipDecomposer.ConvexPartition(new Vertices(verts));
            //List<Vertices> decomposedVerts = BayazitDecomposer.ConvexPartition(new Vertices(verts));

            foreach (Vertices item in decomposedVerts)
            {
                body.CreateFixture(new PolygonShape(item, density));
            }
        }
        internal void Collide()
        {
            // Update awake contacts.
            Contact c = ContactList;

            while (c != null)
            {
                Fixture fixtureA = c.FixtureA;
                Fixture fixtureB = c.FixtureB;
                int     indexA   = c.ChildIndexA;
                int     indexB   = c.ChildIndexB;
                Body    bodyA    = fixtureA.Body;
                Body    bodyB    = fixtureB.Body;

                if (bodyA.Awake == false && bodyB.Awake == false)
                {
                    c = c.Next;
                    continue;
                }

                // Is this contact flagged for filtering?
                if ((c.Flags & ContactFlags.Filter) == ContactFlags.Filter)
                {
                    // Should these bodies collide?
                    if (bodyB.ShouldCollide(bodyA) == false)
                    {
                        Contact cNuke = c;
                        c = cNuke.Next;
                        Destroy(cNuke);
                        continue;
                    }

                    // Check default filtering
                    if (ShouldCollide(fixtureA, fixtureB) == false)
                    {
                        Contact cNuke = c;
                        c = cNuke.Next;
                        Destroy(cNuke);
                        continue;
                    }

                    // Check user filtering.
                    if (ContactFilter != null && ContactFilter(fixtureA, fixtureB) == false)
                    {
                        Contact cNuke = c;
                        c = cNuke.Next;
                        Destroy(cNuke);
                        continue;
                    }

                    // Clear the filtering flag.
                    c.Flags &= ~ContactFlags.Filter;
                }

                int proxyIdA = fixtureA.Proxies[indexA].ProxyId;
                int proxyIdB = fixtureB.Proxies[indexB].ProxyId;

                bool overlap = BroadPhase.TestOverlap(proxyIdA, proxyIdB);

                // Here we destroy contacts that cease to overlap in the broad-phase.
                if (overlap == false)
                {
                    Contact cNuke = c;
                    c = cNuke.Next;
                    Destroy(cNuke);
                    continue;
                }

                // The contact persists.
                c.Update(this);
                c = c.Next;
            }
        }
Example #13
0
        /// <summary>
        /// Create a rigid body.
        /// </summary>
        /// <returns></returns>
        public void AddBody(Body body)
        {
            //You are adding a body that is already in the simulation
            //Debug.Assert(!_bodyAddList.Contains(body));

            if (!_bodyAddList.Contains(body))
                _bodyAddList.Add(body);
        }
Example #14
0
        /// <summary>
        /// This is used to prevent connected bodies from colliding.
        /// It may lie, depending on the collideConnected flag.
        /// </summary>
        /// <param name="other">The other body.</param>
        /// <returns></returns>
        internal bool ShouldCollide(Body other)
        {
            // At least one body should be dynamic.
            if (_bodyType != BodyType.Dynamic && other._bodyType != BodyType.Dynamic)
            {
                return false;
            }

            // Does a joint prevent collision?
            for (JointEdge jn = JointList; jn != null; jn = jn.Next)
            {
                if (jn.Other == other)
                {
                    if (jn.Joint.CollideConnected == false)
                    {
                        return false;
                    }
                }
            }

            return true;
        }
 public static Body CreateBody(World world, Object userData)
 {
     Body body = new Body(world, userData);
     return body;
 }
        /// <summary>
        /// Moves the body on the path.
        /// </summary>
        /// <param name="path">The path.</param>
        /// <param name="body">The body.</param>
        /// <param name="time">The time.</param>
        /// <param name="strength">The strength.</param>
        /// <param name="timeStep">The time step.</param>
        public static void MoveBodyOnPath(Path path, Body body, float time, float strength, float timeStep)
        {
            Vector2 destination = path.GetPosition(time);
            Vector2 positionDelta = body.Position - destination;
            Vector2 velocity = (positionDelta/timeStep)*strength;

            body.LinearVelocity = -velocity;
        }
Example #17
0
 public static WeldJoint CreateWeldJoint(World world, Body bodyA, Body bodyB, Vector2 localAnchorA,
                                         Vector2 localAnchorB)
 {
     WeldJoint weldJoint = new WeldJoint(bodyA, bodyB, localAnchorA, localAnchorB);
     world.AddJoint(weldJoint);
     return weldJoint;
 }
Example #18
0
 /// <summary>
 /// Creates a weld joint and adds it to the world
 /// </summary>
 /// <param name="world"></param>
 /// <param name="bodyA"></param>
 /// <param name="bodyB"></param>
 /// <param name="localanchorB"></param>
 /// <returns></returns>
 public static WeldJoint CreateWeldJoint(World world, Body bodyA, Body bodyB, Vector2 localanchorB)
 {
     WeldJoint joint = CreateWeldJoint(bodyA, bodyB, localanchorB);
     world.AddJoint(joint);
     return joint;
 }
Example #19
0
 /// <summary>
 /// Creates a weld joint
 /// </summary>
 /// <param name="bodyA"></param>
 /// <param name="bodyB"></param>
 /// <param name="localAnchor"></param>
 /// <returns></returns>
 public static WeldJoint CreateWeldJoint(Body bodyA, Body bodyB, Vector2 localAnchor)
 {
     WeldJoint joint = new WeldJoint(bodyA, bodyB, bodyA.GetLocalPoint(localAnchor),
                                     bodyB.GetLocalPoint(localAnchor));
     return joint;
 }
Example #20
0
        public override bool IsActiveOn(Body body)
        {
            if (body.ControllerFilter.IsControllerIgnored(_type))
                return false;

            return base.IsActiveOn(body);
        }
 public Fixture(Body body, Shape shape)
     : this(body, shape, null)
 {
 }
 public void Add(Body body)
 {
     Debug.Assert(BodyCount < _bodyCapacity);
     Bodies[BodyCount++] = body;
 }
        // Broad-phase callback.
        private void AddPair(ref FixtureProxy proxyA, ref FixtureProxy proxyB)
        {
            Fixture fixtureA = proxyA.Fixture;
            Fixture fixtureB = proxyB.Fixture;

            int indexA = proxyA.ChildIndex;
            int indexB = proxyB.ChildIndex;

            Body bodyA = fixtureA.Body;
            Body bodyB = fixtureB.Body;

            // Are the fixtures on the same body?
            if (bodyA == bodyB)
            {
                return;
            }

            // Does a contact already exist?
            ContactEdge edge = bodyB.ContactList;

            while (edge != null)
            {
                if (edge.Other == bodyA)
                {
                    Fixture fA = edge.Contact.FixtureA;
                    Fixture fB = edge.Contact.FixtureB;
                    int     iA = edge.Contact.ChildIndexA;
                    int     iB = edge.Contact.ChildIndexB;

                    if (fA == fixtureA && fB == fixtureB && iA == indexA && iB == indexB)
                    {
                        // A contact already exists.
                        return;
                    }

                    if (fA == fixtureB && fB == fixtureA && iA == indexB && iB == indexA)
                    {
                        // A contact already exists.
                        return;
                    }
                }

                edge = edge.Next;
            }

            // Does a joint override collision? Is at least one body dynamic?
            if (bodyB.ShouldCollide(bodyA) == false)
            {
                return;
            }

            //Check default filter
            if (ShouldCollide(fixtureA, fixtureB) == false)
            {
                return;
            }

            // Check user filtering.
            if (ContactFilter != null && ContactFilter(fixtureA, fixtureB) == false)
            {
                return;
            }

            if (fixtureA.BeforeCollision != null && fixtureA.BeforeCollision(fixtureA, fixtureB) == false)
            {
                return;
            }

            if (fixtureB.BeforeCollision != null && fixtureB.BeforeCollision(fixtureB, fixtureA) == false)
            {
                return;
            }

            // Call the factory.
            Contact c = Contact.Create(fixtureA, indexA, fixtureB, indexB);

            // Contact creation may swap fixtures.
            fixtureA = c.FixtureA;
            fixtureB = c.FixtureB;
            indexA   = c.ChildIndexA;
            indexB   = c.ChildIndexB;
            bodyA    = fixtureA.Body;
            bodyB    = fixtureB.Body;

            // Insert into the world.
            c.Prev = null;
            c.Next = ContactList;
            if (ContactList != null)
            {
                ContactList.Prev = c;
            }
            ContactList = c;

            // Connect to island graph.

            // Connect to body A
            c.NodeA.Contact = c;
            c.NodeA.Other   = bodyB;

            c.NodeA.Prev = null;
            c.NodeA.Next = bodyA.ContactList;
            if (bodyA.ContactList != null)
            {
                bodyA.ContactList.Prev = c.NodeA;
            }
            bodyA.ContactList = c.NodeA;

            // Connect to body B
            c.NodeB.Contact = c;
            c.NodeB.Other   = bodyA;

            c.NodeB.Prev = null;
            c.NodeB.Next = bodyB.ContactList;
            if (bodyB.ContactList != null)
            {
                bodyB.ContactList.Prev = c.NodeB;
            }
            bodyB.ContactList = c.NodeB;

            ++ContactCount;
        }
        public Fixture(Body body, Shape shape, Object userData)
        {
            CollisionFilter = new CollisionFilter(this);

            //Fixture defaults
            Friction = 0.2f;
            Restitution = 0;

            IsSensor = false;

            Body = body;
            UserData = userData;

            if (Settings.ConserveMemory)
                Shape = shape;
            else
                Shape = shape.Clone();

            // Reserve proxy space
            int childCount = Shape.ChildCount;
            Proxies = new FixtureProxy[childCount];
            for (int i = 0; i < childCount; ++i)
            {
                Proxies[i] = new FixtureProxy();
                Proxies[i].Fixture = null;
                Proxies[i].ProxyId = BroadPhase.NullProxy;
            }
            ProxyCount = 0;

            FixtureId = _fixtureIdCounter++;

            if ((Body.Flags & BodyFlags.Enabled) == BodyFlags.Enabled)
            {
                BroadPhase broadPhase = Body.World.ContactManager.BroadPhase;
                CreateProxies(broadPhase, ref Body.Xf);
            }

            Body.FixtureList.Add(this);

            // Adjust mass properties if needed.
            if (Shape._density > 0.0f)
            {
                Body.ResetMassData();
            }

            // Let the world know we have a new fixture. This will cause new contacts
            // to be created at the beginning of the next time step.
            Body.World.Flags |= WorldFlags.NewFixture;

            if (Body.World.FixtureAdded != null)
            {
                Body.World.FixtureAdded(this);
            }
        }
Example #25
0
 public static FixedFrictionJoint CreateFixedFrictionJoint(World world, Body body, Vector2 bodyAnchor)
 {
     FixedFrictionJoint frictionJoint = new FixedFrictionJoint(body, bodyAnchor);
     world.AddJoint(frictionJoint);
     return frictionJoint;
 }
 public void AddBody(Body body)
 {
     _bodies.Add(body);
 }
Example #27
0
 /// <summary>
 /// Creates the fixed revolute joint.
 /// </summary>
 /// <param name="world">The world.</param>
 /// <param name="body">The body.</param>
 /// <param name="bodyAnchor">The body anchor.</param>
 /// <param name="worldAnchor">The world anchor.</param>
 /// <returns></returns>
 public static FixedRevoluteJoint CreateFixedRevoluteJoint(World world, Body body, Vector2 bodyAnchor,
                                                           Vector2 worldAnchor)
 {
     FixedRevoluteJoint fixedRevoluteJoint = new FixedRevoluteJoint(body, bodyAnchor, worldAnchor);
     world.AddJoint(fixedRevoluteJoint);
     return fixedRevoluteJoint;
 }
Example #28
0
 public SolitudeObject(Vector2 position, World world, float width, float height)
 {
     body = BodyFactory.CreateBody(world, position);
     drawOrigin = new Vector2(width / 2f, height / 2f);
     drawRectangle = new Rectangle(0, 0, (int)width, (int)height);
 }
Example #29
0
 public static FrictionJoint CreateFrictionJoint(World world, Body bodyA, Body bodyB, Vector2 anchorA,
                                                 Vector2 anchorB)
 {
     FrictionJoint frictionJoint = new FrictionJoint(bodyA, bodyB, anchorA, anchorB);
     world.AddJoint(frictionJoint);
     return frictionJoint;
 }
Example #30
0
        public virtual bool IsActiveOn(Body body)
        {
            if (body == null || !body.Enabled || body.IsStatic)
                return false;

            if (body.FixtureList == null)
                return false;

            foreach (Fixture fixture in body.FixtureList)
            {
                //Disable
                if ((fixture.CollisionFilter.CollisionGroup == DisabledOnGroup) &&
                    fixture.CollisionFilter.CollisionGroup != 0 && DisabledOnGroup != 0)
                    return false;

                if ((fixture.CollisionFilter.CollisionCategories & DisabledOnCategories) != Category.None)
                    return false;

                if (EnabledOnGroup != 0 || EnabledOnCategories != Category.All)
                {
                    //Enable
                    if ((fixture.CollisionFilter.CollisionGroup == EnabledOnGroup) &&
                        fixture.CollisionFilter.CollisionGroup != 0 && EnabledOnGroup != 0)
                        return true;

                    if ((fixture.CollisionFilter.CollisionCategories & EnabledOnCategories) != Category.None &&
                        EnabledOnCategories != Category.All)
                        return true;
                }
                else
                {
                    return true;
                }
            }

            return false;
        }
        //Contributed by Matthew Bettcher
        /// <summary>
        /// Convert a path into a set of edges and attaches them to the specified body.
        /// Note: use only for static edges.
        /// </summary>
        /// <param name="path">The path.</param>
        /// <param name="body">The body.</param>
        /// <param name="subdivisions">The subdivisions.</param>
        public static void ConvertPathToEdges(Path path, Body body, int subdivisions)
        {
            List<Vector2> verts = path.GetVertices(subdivisions);

            for (int i = 1; i < verts.Count; i++)
            {
                body.CreateFixture(new PolygonShape(PolygonTools.CreateEdge(verts[i], verts[i - 1]), 0));
            }

            if (path.Closed)
            {
                body.CreateFixture(new PolygonShape(PolygonTools.CreateEdge(verts[verts.Count - 1], verts[0]), 0));
            }
        }
Example #32
0
        /// <summary>
        /// Destroy a rigid body.
        /// Warning: This automatically deletes all associated shapes and joints.
        /// </summary>
        /// <param name="body">The body.</param>
        public void RemoveBody(Body body)
        {
            //You are removing a body twice?
            //Debug.Assert(!_bodyRemoveList.Contains(body));

            if (!_bodyRemoveList.Contains(body))
                _bodyRemoveList.Add(body);
        }
        internal void Destroy(Contact contact)
        {
            Fixture fixtureA = contact.FixtureA;
            Fixture fixtureB = contact.FixtureB;
            Body    bodyA    = fixtureA.Body;
            Body    bodyB    = fixtureB.Body;

            if (EndContact != null && contact.IsTouching())
            {
                EndContact(contact);
            }

            // Remove from the world.
            if (contact.Prev != null)
            {
                contact.Prev.Next = contact.Next;
            }

            if (contact.Next != null)
            {
                contact.Next.Prev = contact.Prev;
            }

            if (contact == ContactList)
            {
                ContactList = contact.Next;
            }

            // Remove from body 1
            if (contact.NodeA.Prev != null)
            {
                contact.NodeA.Prev.Next = contact.NodeA.Next;
            }

            if (contact.NodeA.Next != null)
            {
                contact.NodeA.Next.Prev = contact.NodeA.Prev;
            }

            if (contact.NodeA == bodyA.ContactList)
            {
                bodyA.ContactList = contact.NodeA.Next;
            }

            // Remove from body 2
            if (contact.NodeB.Prev != null)
            {
                contact.NodeB.Prev.Next = contact.NodeB.Next;
            }

            if (contact.NodeB.Next != null)
            {
                contact.NodeB.Next.Prev = contact.NodeB.Prev;
            }

            if (contact.NodeB == bodyB.ContactList)
            {
                bodyB.ContactList = contact.NodeB.Next;
            }

            contact.Destroy();

            --ContactCount;
        }