public void Evaluate(int SpreadMax) { if (FInVehicle.IsConnected) { FOutTransform.SliceCount = this.FInVehicle.SliceCount; for (int i = 0; i < this.FInVehicle.SliceCount; i++) { this.FOutTransform[i].SliceCount = this.FInVehicle[i].NumWheels; RaycastVehicle v = this.FInVehicle[i]; for (int j = 0; j < v.NumWheels; j++) { WheelInfo wi = v.GetWheelInfo(j); Matrix m = wi.WorldTransform; Matrix4x4 mn = new Matrix4x4(m.M11, m.M12, m.M13, m.M14, m.M21, m.M22, m.M23, m.M24, m.M31, m.M32, m.M33, m.M34, m.M41, m.M42, m.M43, m.M44); this.FOutTransform[i][j] = mn; } } } else { this.FOutTransform.SliceCount = 0; } }
public void Evaluate(int SpreadMax) { if (FInVehicle.PluginIO.IsConnected) { FOutSkidInfo.SliceCount = this.FInVehicle.SliceCount; FOutSuspensionRelativeVelocity.SliceCount = this.FInVehicle.SliceCount; FOutSuspensionsForce.SliceCount = this.FInVehicle.SliceCount; for (int i = 0; i < this.FInVehicle.SliceCount; i++) { int numWheels = this.FInVehicle[i].NumWheels; this.FOutSkidInfo[i].SliceCount = numWheels; FOutSuspensionRelativeVelocity[i].SliceCount = numWheels; FOutSuspensionsForce[i].SliceCount = numWheels; RaycastVehicle v = this.FInVehicle[i]; for (int j = 0; j < v.NumWheels; j++) { WheelInfo wi = v.GetWheelInfo(j); this.FOutSkidInfo[i][j] = wi.SkidInfo; this.FOutSuspensionRelativeVelocity[i][j] = wi.SuspensionRelativeVelocity; this.FOutSuspensionsForce[i][j] = wi.WheelsSuspensionForce; } } } else { this.FOutSkidInfo.SliceCount = 0; FOutSuspensionRelativeVelocity.SliceCount = 0; FOutSuspensionsForce.SliceCount = 0; } }
public void Evaluate(int SpreadMax) { if (FInVehicle.PluginIO.IsConnected) { FOutTransform.SliceCount = this.FInVehicle[0].NumWheels; Fskidinfo.SliceCount = this.FInVehicle[0].NumWheels; RaycastVehicle v = this.FInVehicle[0]; for (int i = 0; i < v.NumWheels; i++) { WheelInfo wi = v.GetWheelInfo(i); skidinfos = wi.SkidInfo; Fskidinfo[i] = skidinfos; Matrix m = wi.WorldTransform; Matrix4x4 mn = new Matrix4x4(m.M11, m.M12, m.M13, m.M14, m.M21, m.M22, m.M23, m.M24, m.M31, m.M32, m.M33, m.M34, m.M41, m.M42, m.M43, m.M44); FvSpeed[0] = v.CurrentSpeedKmHour; this.FOutTransform[i] = mn; } } }
protected void AddWheels(Vector3 halfExtents, RaycastVehicle vehicle, VehicleTuning tuning, float wheelRadius) { //The direction of the raycast, the btRaycastVehicle uses raycasts instead of simiulating the wheels with rigid bodies Vector3 wheelDirectionCS0 = new Vector3(0, -1, 0); //The axis which the wheel rotates arround Vector3 wheelAxleCS = new Vector3(-1, 0, 0); //All the wheel configuration assumes the vehicle is centered at the origin and a right handed coordinate system is used Vector4 points = contactInfoByChassis(mesh.Name); points.Y += suspensionLength + meshAxisRadius.Y - (meshRealHeight / 2f); //Adds the rear wheels Vector3 wheelConnectionPoint = new Vector3(points.X, points.Y - rearWheelsHeight, points.Z); vehicle.AddWheel(wheelConnectionPoint, wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius, tuning, false); vehicle.AddWheel(wheelConnectionPoint * new Vector3(-1, 1, 1), wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius, tuning, false); //Adds the front wheels wheelConnectionPoint = new Vector3(points.X, points.Y - frontWheelsHeight, points.W); vehicle.AddWheel(wheelConnectionPoint * new Vector3(1, 1, -1), wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius, tuning, true); vehicle.AddWheel(wheelConnectionPoint * new Vector3(-1, 1, -1), wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius, tuning, true); //Configures each wheel of our vehicle, setting its friction, damping compression, etc. //For more details on what each parameter does, refer to the docs for (int i = 0; i < vehicle.NumWheels; i++) { WheelInfo wheel = vehicle.GetWheelInfo(i); wheel.MaxSuspensionForce = 700000; //wheel.MaxSuspensionTravelCm = 80; wheel.SuspensionStiffness = suspensionStiffness; wheel.WheelsDampingCompression = dampingCompression * 2 * FastMath.Sqrt(wheel.SuspensionStiffness); wheel.WheelsDampingRelaxation = dampingRelaxation * 2 * FastMath.Sqrt(wheel.SuspensionStiffness); wheel.FrictionSlip = frictionSlip; wheel.RollInfluence = rollInfluence; } }
public void Evaluate(int SpreadMax) { if (FInVehicle.PluginIO.IsConnected) { FOutTransform.SliceCount = this.FInVehicle[0].NumWheels; RaycastVehicle v = this.FInVehicle[0]; for (int i = 0; i < v.NumWheels; i++) { WheelInfo wi = v.GetWheelInfo(i); Matrix m = wi.WorldTransform; Matrix4x4 mn = new Matrix4x4(m.M11, m.M12, m.M13, m.M14, m.M21, m.M22, m.M23, m.M24, m.M31, m.M32, m.M33, m.M34, m.M41, m.M42, m.M43, m.M44); //wi.r this.FOutTransform[i] = mn; } } }
public Physics(VehicleDemo game) { CollisionShape groundShape = new BoxShape(50, 3, 50); CollisionShapes.Add(groundShape); CollisionConf = new DefaultCollisionConfiguration(); Dispatcher = new CollisionDispatcher(CollisionConf); Solver = new SequentialImpulseConstraintSolver(); Vector3 worldMin = new Vector3(-10000, -10000, -10000); Vector3 worldMax = new Vector3(10000, 10000, 10000); Broadphase = new AxisSweep3(worldMin, worldMax); //Broadphase = new DbvtBroadphase(); World = new DiscreteDynamicsWorld(Dispatcher, Broadphase, Solver, CollisionConf); int i; Matrix tr; Matrix vehicleTr; if (UseTrimeshGround) { const float scale = 20.0f; //create a triangle-mesh ground int vertStride = Vector3.SizeInBytes; int indexStride = 3 * sizeof(int); const int NUM_VERTS_X = 20; const int NUM_VERTS_Y = 20; const int totalVerts = NUM_VERTS_X * NUM_VERTS_Y; const int totalTriangles = 2 * (NUM_VERTS_X - 1) * (NUM_VERTS_Y - 1); TriangleIndexVertexArray vertexArray = new TriangleIndexVertexArray(); IndexedMesh mesh = new IndexedMesh(); mesh.Allocate(totalVerts, vertStride, totalTriangles, indexStride, PhyScalarType.Int32, PhyScalarType.Single); BulletSharp.DataStream data = mesh.LockVerts(); for (i = 0; i < NUM_VERTS_X; i++) { for (int j = 0; j < NUM_VERTS_Y; j++) { float wl = .2f; float height = 20.0f * (float)(Math.Sin(i * wl) * Math.Cos(j * wl)); data.Write((i - NUM_VERTS_X * 0.5f) * scale); data.Write(height); data.Write((j - NUM_VERTS_Y * 0.5f) * scale); } } int index = 0; IntArray idata = mesh.TriangleIndices; for (i = 0; i < NUM_VERTS_X - 1; i++) { for (int j = 0; j < NUM_VERTS_Y - 1; j++) { idata[index++] = j * NUM_VERTS_X + i; idata[index++] = j * NUM_VERTS_X + i + 1; idata[index++] = (j + 1) * NUM_VERTS_X + i + 1; idata[index++] = j * NUM_VERTS_X + i; idata[index++] = (j + 1) * NUM_VERTS_X + i + 1; idata[index++] = (j + 1) * NUM_VERTS_X + i; } } vertexArray.AddIndexedMesh(mesh); groundShape = new BvhTriangleMeshShape(vertexArray, true); tr = Matrix.Identity; vehicleTr = Matrix.Translation(0, -2, 0); } else { // Use HeightfieldTerrainShape int width = 40, length = 40; //int width = 128, length = 128; // Debugging is too slow for this float maxHeight = 10.0f; float heightScale = maxHeight / 256.0f; Vector3 scale = new Vector3(20.0f, maxHeight, 20.0f); //PhyScalarType scalarType = PhyScalarType.PhyUChar; //FileStream file = new FileStream(heightfieldFile, FileMode.Open, FileAccess.Read); // Use float data PhyScalarType scalarType = PhyScalarType.Single; byte[] terr = new byte[width * length * 4]; MemoryStream file = new MemoryStream(terr); BinaryWriter writer = new BinaryWriter(file); for (i = 0; i < width; i++) { for (int j = 0; j < length; j++) { writer.Write((float)((maxHeight / 2) + 4 * Math.Sin(j * 0.5f) * Math.Cos(i))); } } writer.Flush(); file.Position = 0; HeightfieldTerrainShape heightterrainShape = new HeightfieldTerrainShape(width, length, file, heightScale, 0, maxHeight, upIndex, scalarType, false); heightterrainShape.SetUseDiamondSubdivision(true); groundShape = heightterrainShape; groundShape.LocalScaling = new Vector3(scale.X, 1, scale.Z); tr = Matrix.Translation(new Vector3(-scale.X / 2, scale.Y / 2, -scale.Z / 2)); vehicleTr = Matrix.Translation(new Vector3(20, 3, -3)); // Create graphics object file.Position = 0; BinaryReader reader = new BinaryReader(file); int totalTriangles = (width - 1) * (length - 1) * 2; int totalVerts = width * length; game.groundMesh = new Mesh(game.Device, totalTriangles, totalVerts, MeshFlags.SystemMemory | MeshFlags.Use32Bit, VertexFormat.Position | VertexFormat.Normal); SlimDX.DataStream data = game.groundMesh.LockVertexBuffer(LockFlags.None); for (i = 0; i < width; i++) { for (int j = 0; j < length; j++) { float height; if (scalarType == PhyScalarType.Single) { // heightScale isn't applied internally for float data height = reader.ReadSingle(); } else if (scalarType == PhyScalarType.Byte) { height = file.ReadByte() * heightScale; } else { height = 0.0f; } data.Write((j - length * 0.5f) * scale.X); data.Write(height); data.Write((i - width * 0.5f) * scale.Z); // Normals will be calculated later data.Position += 12; } } game.groundMesh.UnlockVertexBuffer(); file.Close(); data = game.groundMesh.LockIndexBuffer(LockFlags.None); for (i = 0; i < width - 1; i++) { for (int j = 0; j < length - 1; j++) { // Using diamond subdivision if ((j + i) % 2 == 0) { data.Write(j * width + i); data.Write((j + 1) * width + i + 1); data.Write(j * width + i + 1); data.Write(j * width + i); data.Write((j + 1) * width + i); data.Write((j + 1) * width + i + 1); } else { data.Write(j * width + i); data.Write((j + 1) * width + i); data.Write(j * width + i + 1); data.Write(j * width + i + 1); data.Write((j + 1) * width + i); data.Write((j + 1) * width + i + 1); } /* * // Not using diamond subdivision * data.Write(j * width + i); * data.Write((j + 1) * width + i); * data.Write(j * width + i + 1); * * data.Write(j * width + i + 1); * data.Write((j + 1) * width + i); * data.Write((j + 1) * width + i + 1); */ } } game.groundMesh.UnlockIndexBuffer(); game.groundMesh.ComputeNormals(); } CollisionShapes.Add(groundShape); //create ground object RigidBody ground = LocalCreateRigidBody(0, tr, groundShape); ground.UserObject = "Ground"; CollisionShape chassisShape = new BoxShape(1.0f, 0.5f, 2.0f); CollisionShapes.Add(chassisShape); CompoundShape compound = new CompoundShape(); CollisionShapes.Add(compound); //localTrans effectively shifts the center of mass with respect to the chassis Matrix localTrans = Matrix.Translation(Vector3.UnitY); compound.AddChildShape(localTrans, chassisShape); RigidBody carChassis = LocalCreateRigidBody(800, Matrix.Identity, compound); carChassis.UserObject = "Chassis"; //carChassis.SetDamping(0.2f, 0.2f); //CylinderShapeX wheelShape = new CylinderShapeX(wheelWidth, wheelRadius, wheelRadius); // clientResetScene(); // create vehicle RaycastVehicle.VehicleTuning tuning = new RaycastVehicle.VehicleTuning(); IVehicleRaycaster vehicleRayCaster = new DefaultVehicleRaycaster(World); vehicle = new RaycastVehicle(tuning, carChassis, vehicleRayCaster); carChassis.ActivationState = ActivationState.DisableDeactivation; World.AddAction(vehicle); float connectionHeight = 1.2f; bool isFrontWheel = true; // choose coordinate system vehicle.SetCoordinateSystem(rightIndex, upIndex, forwardIndex); Vector3 connectionPointCS0 = new Vector3(CUBE_HALF_EXTENTS - (0.3f * wheelWidth), connectionHeight, 2 * CUBE_HALF_EXTENTS - wheelRadius); WheelInfo a = vehicle.AddWheel(connectionPointCS0, wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius, tuning, isFrontWheel); connectionPointCS0 = new Vector3(-CUBE_HALF_EXTENTS + (0.3f * wheelWidth), connectionHeight, 2 * CUBE_HALF_EXTENTS - wheelRadius); vehicle.AddWheel(connectionPointCS0, wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius, tuning, isFrontWheel); isFrontWheel = false; connectionPointCS0 = new Vector3(-CUBE_HALF_EXTENTS + (0.3f * wheelWidth), connectionHeight, -2 * CUBE_HALF_EXTENTS + wheelRadius); vehicle.AddWheel(connectionPointCS0, wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius, tuning, isFrontWheel); connectionPointCS0 = new Vector3(CUBE_HALF_EXTENTS - (0.3f * wheelWidth), connectionHeight, -2 * CUBE_HALF_EXTENTS + wheelRadius); vehicle.AddWheel(connectionPointCS0, wheelDirectionCS0, wheelAxleCS, suspensionRestLength, wheelRadius, tuning, isFrontWheel); for (i = 0; i < vehicle.NumWheels; i++) { WheelInfo wheel = vehicle.GetWheelInfo(i); wheel.SuspensionStiffness = suspensionStiffness; wheel.WheelsDampingRelaxation = suspensionDamping; wheel.WheelsDampingCompression = suspensionCompression; wheel.FrictionSlip = wheelFriction; wheel.RollInfluence = rollInfluence; } vehicle.RigidBody.WorldTransform = vehicleTr; }
public void Render() { // Renderizar la malla del auto, en este caso solo el Chasis Mesh.Transform = TGCMatrix.Translation(new TGCVector3(0, meshAxisRadius.Y - (meshRealHeight / 2f), 0)) * new TGCMatrix(rigidBody.InterpolationWorldTransform); Mesh.Render(); TGCMatrix wheelTransform; // Como las ruedas no son cuerpos rigidos (aún) se procede a realizar las transformaciones de las ruedas para renderizar wheelTransform = TGCMatrix.RotationY(vehicle.GetSteeringValue(0)) * TGCMatrix.RotationTGCQuaternion(new TGCQuaternion(RigidBody.Orientation.X, RigidBody.Orientation.Y, RigidBody.Orientation.Z, RigidBody.Orientation.W)) * TGCMatrix.Translation(new TGCVector3(vehicle.GetWheelInfo(0).WorldTransform.Origin)); wheel.Transform = wheelTransform; wheel.Render(); wheelTransform = TGCMatrix.RotationY(vehicle.GetSteeringValue(1) + FastMath.PI) * TGCMatrix.RotationTGCQuaternion(new TGCQuaternion(RigidBody.Orientation.X, RigidBody.Orientation.Y, RigidBody.Orientation.Z, RigidBody.Orientation.W)) * TGCMatrix.Translation(new TGCVector3(vehicle.GetWheelInfo(1).WorldTransform.Origin)); wheel.Transform = wheelTransform; wheel.Render(); wheelTransform = TGCMatrix.RotationY(-vehicle.GetSteeringValue(2)) * TGCMatrix.RotationTGCQuaternion(new TGCQuaternion(RigidBody.Orientation.X, RigidBody.Orientation.Y, RigidBody.Orientation.Z, RigidBody.Orientation.W)) * TGCMatrix.Translation(new TGCVector3(vehicle.GetWheelInfo(2).WorldTransform.Origin)); wheel.Transform = wheelTransform; wheel.Render(); wheelTransform = TGCMatrix.RotationY(-vehicle.GetSteeringValue(3) + FastMath.PI) * TGCMatrix.RotationTGCQuaternion(new TGCQuaternion(RigidBody.Orientation.X, RigidBody.Orientation.Y, RigidBody.Orientation.Z, RigidBody.Orientation.W)) * TGCMatrix.Translation(new TGCVector3(vehicle.GetWheelInfo(3).WorldTransform.Origin)); wheel.Transform = wheelTransform; wheel.Render(); }
public override void Evaluate(int SpreadMax) { for (int i = 0; i < SpreadMax; i++) { if (this.CanCreate(i)) { wheelRadius = FwheelRadius[0]; wheelWidth = FwheelWidth[0]; CUBE_HALF_EXTENTS = FwheelDistance[0]; RaycastVehicle vehicle; AbstractRigidShapeDefinition shapedef = this.FShapes[i]; ShapeCustomData sc = new ShapeCustomData(); sc.ShapeDef = shapedef; CompoundShape compound = new CompoundShape(); CollisionShape chassisShape = shapedef.GetShape(sc); Matrix localTrans = Matrix.Translation(Vector3.UnitY); compound.AddChildShape(localTrans, chassisShape); float mass = shapedef.Mass; bool isDynamic = (mass != 0.0f); isFrontWheel = true; Vector3 localInertia = Vector3.Zero; if (isDynamic) { chassisShape.CalculateLocalInertia(mass, out localInertia); } Vector3D pos = this.FPosition[i]; Vector4D rot = this.FRotation[i]; DefaultMotionState ms = BulletUtils.CreateMotionState(pos.x, pos.y, pos.z, rot.x, rot.y, rot.z, rot.w); RigidBodyConstructionInfo rbInfo = new RigidBodyConstructionInfo(mass, ms, compound, localInertia); RigidBody carChassis = new RigidBody(rbInfo); BodyCustomData bd = new BodyCustomData(); carChassis.UserObject = bd; bd.Id = this.FWorld[0].GetNewBodyId(); bd.Custom = this.FCustom[i]; this.FWorld[0].Register(carChassis); RaycastVehicle.VehicleTuning tuning = new RaycastVehicle.VehicleTuning(); VehicleRaycaster vehicleRayCaster = new DefaultVehicleRaycaster(this.FWorld[0].World); vehicle = new RaycastVehicle(tuning, carChassis, vehicleRayCaster); carChassis.ActivationState = ActivationState.DisableDeactivation; this.FWorld[0].World.AddAction(vehicle); // choose coordinate system vehicle.SetCoordinateSystem(rightIndex, upIndex, forwardIndex); Vector3 connectionPointCS0 = new Vector3(CUBE_HALF_EXTENTS - (0.3f * wheelWidth), FconnectionHeight[0], 2 * CUBE_HALF_EXTENTS - wheelRadius); WheelInfo a = vehicle.AddWheel(connectionPointCS0, wheelDirectionCS0, wheelAxleCS, FsuspensionRestLength[0], wheelRadius, tuning, isFrontWheel); connectionPointCS0 = new Vector3(-CUBE_HALF_EXTENTS + (0.3f * wheelWidth), FconnectionHeight[0], 2 * CUBE_HALF_EXTENTS - wheelRadius); vehicle.AddWheel(connectionPointCS0, wheelDirectionCS0, wheelAxleCS, FsuspensionRestLength[0], wheelRadius, tuning, isFrontWheel); isFrontWheel = false; connectionPointCS0 = new Vector3(-CUBE_HALF_EXTENTS + (0.3f * wheelWidth), FconnectionHeight[0], -2 * CUBE_HALF_EXTENTS + wheelRadius); vehicle.AddWheel(connectionPointCS0, wheelDirectionCS0, wheelAxleCS, FsuspensionRestLength[0], wheelRadius, tuning, isFrontWheel); connectionPointCS0 = new Vector3(CUBE_HALF_EXTENTS - (0.3f * wheelWidth), FconnectionHeight[0], -2 * CUBE_HALF_EXTENTS + wheelRadius); vehicle.AddWheel(connectionPointCS0, wheelDirectionCS0, wheelAxleCS, FsuspensionRestLength[0], wheelRadius, tuning, isFrontWheel); for (i = 0; i < vehicle.NumWheels; i++) { WheelInfo wheel = vehicle.GetWheelInfo(i); wheel.SuspensionStiffness = FsuspensionStiffness[0]; wheel.WheelDampingRelaxation = FDampingRelaxation[0]; wheel.WheelDampingCompression = FDampingCompression[0]; wheel.FrictionSlip = FwheelFriction[0]; wheel.RollInfluence = FrollInfluence[0]; wheel.MaxSuspensionTravelCm = FmaxSuspensionTravelCm[0]; wheel.MaxSuspensionForce = FmaxSuspensionForce[0]; } FOutVehicle.SliceCount = 1; FOutVehicle[0] = vehicle; } } }
public void Evaluate(int SpreadMax) { IRigidBulletWorld inputWorld = this.worldInput[0]; SpreadMax = 1; if (inputWorld != null) { this.persistedList.UpdateWorld(inputWorld); if (this.chassisShape.IsConnected) { for (int i = 0; i < SpreadMax; i++) { if (this.doCreate[i]) { RigidBodyPose initialPose = this.initialPoseInput.IsConnected ? this.initialPoseInput[i] : RigidBodyPose.Default; RigidBodyProperties properties = this.initialProperties.IsConnected ? this.initialProperties[i] : RigidBodyProperties.Default; ShapeCustomData shapeData = new ShapeCustomData(); DynamicShapeDefinitionBase chassisShapeDefinition = this.chassisShape[i]; CollisionShape chassisShape = chassisShapeDefinition.GetShape(shapeData); shapeData.ShapeDef = chassisShapeDefinition; RaycastVehicle vehicle; CompoundShape compoundShape = new CompoundShape(); Matrix localTrans = Matrix.Translation(Vector3.UnitY); compoundShape.AddChildShape(localTrans, chassisShape); //Build mass for dynamic object Vector3 localInertia = Vector3.Zero; if (chassisShapeDefinition.Mass > 0.0f) { compoundShape.CalculateLocalInertia(chassisShapeDefinition.Mass, out localInertia); } Tuple <RigidBody, int> createBodyResult = inputWorld.CreateRigidBody(chassisShape, ref initialPose, ref properties, ref localInertia, chassisShapeDefinition.Mass, this.customString[i]); RigidBody carChassis = createBodyResult.Item1; RaycastVehicle.VehicleTuning tuning = new RaycastVehicle.VehicleTuning(); DefaultVehicleRaycaster vehicleRayCaster = new DefaultVehicleRaycaster(inputWorld.World); vehicle = new RaycastVehicle(tuning, carChassis, vehicleRayCaster); vehicle.SetCoordinateSystem(rightIndex, upIndex, forwardIndex); carChassis.ActivationState = ActivationState.DisableDeactivation; inputWorld.World.AddAction(vehicle); int wheelCount = this.wheelConstruction.SliceCount; //Add wheels for (int j = 0; j < this.wheelConstruction[i].SliceCount; j++) { WheelConstructionProperties wcs = this.wheelConstruction[i][j]; Vector3 connectionPointCS0 = wcs.localPosition.ToBulletVector(); WheelInfo wheel = vehicle.AddWheel(connectionPointCS0, wcs.wheelDirection.ToBulletVector(), wcs.wheelAxis.ToBulletVector(), wcs.SuspensionRestLength, wcs.WheelRadius, tuning, wcs.isFrontWheel); } //Set Wheel Properties WheelProperties wis = this.wheelInfoSettings[i] != null ? this.wheelInfoSettings[i] : new WheelProperties(); for (int j = 0; j < vehicle.NumWheels; j++) { WheelInfo wheel = vehicle.GetWheelInfo(j); wheel.SuspensionStiffness = wis.SuspensionStiffness; wheel.WheelsDampingRelaxation = wis.WheelsDampingRelaxation; wheel.WheelsDampingCompression = wis.WheelsDampingCompression; wheel.FrictionSlip = wis.FrictionSlip; wheel.RollInfluence = wis.RollInfluence; } BodyCustomData bd = (BodyCustomData)carChassis.UserObject; bd.Vehicle = vehicle; this.persistedList.Append(createBodyResult.Item1, createBodyResult.Item2); } } List <RigidBody> bodies = this.persistedList.Bodies; this.vehicleOutput.SliceCount = bodies.Count; this.chassisOutput.SliceCount = bodies.Count; for (int i = 0; i < bodies.Count; i++) { BodyCustomData bd = (BodyCustomData)bodies[i].UserObject; this.vehicleOutput[i] = bd.Vehicle; this.chassisOutput[i] = bodies[i]; } } } else { this.vehicleOutput.SliceCount = 0; this.chassisOutput.SliceCount = 0; } }
//---------------------------------------------------------------------------------------------------------------- public override void InitializeDemo() { CollisionShape groundShape = new BoxShape(new IndexedVector3(50, 0.1f, 50)); IndexedVector3 wheelDimensions = new IndexedVector3(wheelWidth, wheelRadius, wheelRadius); m_wheelShape = new CylinderShapeX(ref wheelDimensions); m_collisionShapes.Add(groundShape); m_collisionConfiguration = new DefaultCollisionConfiguration(); m_dispatcher = new CollisionDispatcher(m_collisionConfiguration); IndexedVector3 worldMin = new IndexedVector3(-1000, -1000, -1000); IndexedVector3 worldMax = new IndexedVector3(1000, 1000, 1000); m_broadphase = new AxisSweep3Internal(ref worldMin, ref worldMax, 0xfffe, 0xffff, 16384, null, false); m_constraintSolver = new SequentialImpulseConstraintSolver(); m_dynamicsWorld = new DiscreteDynamicsWorld(m_dispatcher, m_broadphase, m_constraintSolver, m_collisionConfiguration); IndexedMatrix tr = IndexedMatrix.CreateTranslation(0, -10, 0); LocalCreateRigidBody(0f, ref tr, groundShape); #if true CollisionShape chassisShape = new BoxShape(new IndexedVector3(1.0f, 0.5f, 2.0f)); //CollisionShape chassisShape = new BoxShape(new IndexedVector3(1.0f, 0.5f, 1.0f)); m_collisionShapes.Add(chassisShape); CompoundShape compound = new CompoundShape(); m_collisionShapes.Add(compound); //localTrans effectively shifts the center of mass with respect to the chassis IndexedMatrix localTrans = IndexedMatrix.CreateTranslation(0, 1, 0); compound.AddChildShape(ref localTrans, chassisShape); { CollisionShape suppShape = new BoxShape(new IndexedVector3(0.5f, 0.1f, 0.5f)); //localTrans effectively shifts the center of mass with respect to the chassis IndexedMatrix suppLocalTrans = IndexedMatrix.CreateTranslation(0f, 1.0f, 2.5f); compound.AddChildShape(ref suppLocalTrans, suppShape); } tr._origin = IndexedVector3.Zero; m_carChassis = LocalCreateRigidBody(800f, ref tr, compound);//chassisShape); #endif { #if true CollisionShape liftShape = new BoxShape(new IndexedVector3(0.5f, 2.0f, 0.05f)); m_collisionShapes.Add(liftShape); m_liftStartPos = new IndexedVector3(0.0f, 2.5f, 3.05f); IndexedMatrix liftTrans = IndexedMatrix.CreateTranslation(m_liftStartPos); m_liftBody = LocalCreateRigidBody(10f, ref liftTrans, liftShape); IndexedMatrix localA = MathUtil.SetEulerZYX(0f, MathUtil.SIMD_HALF_PI, 0f); localA._origin = new IndexedVector3(0f, 1.0f, 3.05f); IndexedMatrix localB = MathUtil.SetEulerZYX(0f, MathUtil.SIMD_HALF_PI, 0f); localB._origin = new IndexedVector3(0f, -1.5f, -0.05f); m_liftHinge = new HingeConstraint(m_carChassis, m_liftBody, ref localA, ref localB); MathUtil.PrintMatrix(BulletGlobals.g_streamWriter, "hinge aFrame", m_liftHinge.GetAFrame()); MathUtil.PrintMatrix(BulletGlobals.g_streamWriter, "hinge bFrame", m_liftHinge.GetBFrame()); m_liftHinge.SetLimit(0.0f, 0.0f); m_dynamicsWorld.AddConstraint(m_liftHinge, true); CollisionShape forkShapeA = new BoxShape(new IndexedVector3(1.0f, 0.1f, 0.1f)); m_collisionShapes.Add(forkShapeA); CompoundShape forkCompound = new CompoundShape(); m_collisionShapes.Add(forkCompound); IndexedMatrix forkLocalTrans = IndexedMatrix.Identity; forkCompound.AddChildShape(ref forkLocalTrans, forkShapeA); CollisionShape forkShapeB = new BoxShape(new IndexedVector3(0.1f, 0.02f, 0.6f)); m_collisionShapes.Add(forkShapeB); forkLocalTrans = IndexedMatrix.CreateTranslation(-0.9f, -0.08f, 0.7f); forkCompound.AddChildShape(ref forkLocalTrans, forkShapeB); CollisionShape forkShapeC = new BoxShape(new IndexedVector3(0.1f, 0.02f, 0.6f)); m_collisionShapes.Add(forkShapeC); forkLocalTrans = IndexedMatrix.CreateTranslation(0.9f, -0.08f, 0.7f); forkCompound.AddChildShape(ref forkLocalTrans, forkShapeC); m_forkStartPos = new IndexedVector3(0.0f, 0.6f, 3.2f); IndexedMatrix forkTrans = IndexedMatrix.CreateTranslation(m_forkStartPos); m_forkBody = LocalCreateRigidBody(5f, ref forkTrans, forkCompound); localA = IndexedMatrix.Identity; localB = IndexedMatrix.Identity; localA._basis.SetEulerZYX(0, 0, MathUtil.SIMD_HALF_PI); localA._origin = new IndexedVector3(0.0f, -1.9f, 0.05f); localB._basis.SetEulerZYX(0, 0, MathUtil.SIMD_HALF_PI); localB._origin = new IndexedVector3(0.0f, 0.0f, -0.1f); m_forkSlider = new SliderConstraint(m_liftBody, m_forkBody, ref localA, ref localB, true); m_forkSlider.SetLowerLinLimit(0.1f); m_forkSlider.SetUpperLinLimit(0.1f); // m_forkSlider.setLowerAngLimit(-LIFT_EPS); // m_forkSlider.setUpperAngLimit(LIFT_EPS); m_forkSlider.SetLowerAngLimit(0.0f); m_forkSlider.SetUpperAngLimit(0.0f); m_dynamicsWorld.AddConstraint(m_forkSlider, true); #endif #if true CompoundShape loadCompound = new CompoundShape(false); m_collisionShapes.Add(loadCompound); CollisionShape loadShapeA = new BoxShape(new IndexedVector3(2.0f, 0.5f, 0.5f)); m_collisionShapes.Add(loadShapeA); IndexedMatrix loadTrans = IndexedMatrix.Identity; loadCompound.AddChildShape(ref loadTrans, loadShapeA); CollisionShape loadShapeB = new BoxShape(new IndexedVector3(0.1f, 1.0f, 1.0f)); m_collisionShapes.Add(loadShapeB); loadTrans = IndexedMatrix.CreateTranslation(2.1f, 0.0f, 0.0f); loadCompound.AddChildShape(ref loadTrans, loadShapeB); CollisionShape loadShapeC = new BoxShape(new IndexedVector3(0.1f, 1.0f, 1.0f)); m_collisionShapes.Add(loadShapeC); loadTrans = IndexedMatrix.CreateTranslation(-2.1f, 0.0f, 0.0f); loadCompound.AddChildShape(ref loadTrans, loadShapeC); m_loadStartPos = new IndexedVector3(0.0f, -3.5f, 7.0f); loadTrans = IndexedMatrix.CreateTranslation(m_loadStartPos); m_loadBody = LocalCreateRigidBody(4f, ref loadTrans, loadCompound); #endif } //m_carChassis.setDamping(0.2f, 0.2f); ClientResetScene(); /// create vehicle { m_vehicleRayCaster = new DefaultVehicleRaycaster(m_dynamicsWorld); m_vehicle = new RaycastVehicle(m_tuning, m_carChassis, m_vehicleRayCaster); ///never deactivate the vehicle m_carChassis.SetActivationState(ActivationState.DISABLE_DEACTIVATION); m_dynamicsWorld.AddVehicle(m_vehicle); float connectionHeight = 1.2f; bool isFrontWheel = true; //choose coordinate system m_vehicle.SetCoordinateSystem(rightIndex, upIndex, forwardIndex); IndexedVector3 connectionPointCS0 = IndexedVector3.Zero; //connectionPointCS0 = new IndexedVector3(CUBE_HALF_EXTENTS, connectionHeight, CUBE_HALF_EXTENTS); //m_vehicle.addWheel(ref connectionPointCS0, ref wheelDirectionCS0, ref wheelAxleCS, suspensionRestLength, wheelRadius, m_tuning, isFrontWheel); connectionPointCS0 = new IndexedVector3(CUBE_HALF_EXTENTS - (0.3f * wheelWidth), connectionHeight, 2.0f * CUBE_HALF_EXTENTS - wheelRadius); m_vehicle.AddWheel(ref connectionPointCS0, ref wheelDirectionCS0, ref wheelAxleCS, suspensionRestLength, wheelRadius, m_tuning, isFrontWheel); connectionPointCS0 = new IndexedVector3(-CUBE_HALF_EXTENTS + (0.3f * wheelWidth), connectionHeight, 2.0f * CUBE_HALF_EXTENTS - wheelRadius); m_vehicle.AddWheel(ref connectionPointCS0, ref wheelDirectionCS0, ref wheelAxleCS, suspensionRestLength, wheelRadius, m_tuning, isFrontWheel); //isFrontWheel = false; connectionPointCS0 = new IndexedVector3(-CUBE_HALF_EXTENTS + (0.3f * wheelWidth), connectionHeight, -2.0f * CUBE_HALF_EXTENTS + wheelRadius); m_vehicle.AddWheel(ref connectionPointCS0, ref wheelDirectionCS0, ref wheelAxleCS, suspensionRestLength, wheelRadius, m_tuning, isFrontWheel); connectionPointCS0 = new IndexedVector3(CUBE_HALF_EXTENTS - (0.3f * wheelWidth), connectionHeight, -2.0f * CUBE_HALF_EXTENTS + wheelRadius); m_vehicle.AddWheel(ref connectionPointCS0, ref wheelDirectionCS0, ref wheelAxleCS, suspensionRestLength, wheelRadius, m_tuning, isFrontWheel); for (int i = 0; i < m_vehicle.GetNumWheels(); i++) { WheelInfo wheel = m_vehicle.GetWheelInfo(i); wheel.m_suspensionStiffness = suspensionStiffness; wheel.m_wheelsDampingRelaxation = suspensionDamping; wheel.m_wheelsDampingCompression = suspensionCompression; wheel.m_frictionSlip = wheelFriction; wheel.m_rollInfluence = rollInfluence; } } SetCameraDistance(36.0f); SetTexturing(true); SetShadows(true); }