protected override bool Attach(MyAttachableTopBlockBase rotor, bool updateGroup = true)
{
Debug.Assert(rotor != null, "Rotor cannot be null!");
Debug.Assert(m_constraint == null, "Already attached, call detach first!");
if (rotor is MyMotorRotor)
{
if (CubeGrid.Physics != null && CubeGrid.Physics.Enabled)
{
m_topBlock = rotor;
m_topGrid = m_topBlock.CubeGrid;
var rotorBody = m_topGrid.Physics.RigidBody;
rotorBody.MaxAngularVelocity = float.MaxValue;
rotorBody.Restitution = 0.5f;
CubeGrid.GetPhysicsBody().HavokWorld.BreakOffPartsUtil.UnmarkEntityBreakable(rotorBody);
if (MyFakes.WHEEL_SOFTNESS)
{
HkUtils.SetSoftContact(rotorBody, null, MyPhysicsConfig.WheelSoftnessRatio, MyPhysicsConfig.WheelSoftnessVelocity);
}
var info = HkGroupFilter.CalcFilterInfo(rotorBody.Layer, CubeGrid.GetPhysicsBody().HavokCollisionSystemID, 1, 1);
rotorBody.SetCollisionFilterInfo(info);
HkWheelConstraintData data = new HkWheelConstraintData();
var suspensionAx = PositionComp.LocalMatrix.Forward;
var posA = DummyPosition + (suspensionAx * m_height);
var posB = (rotor as MyMotorRotor).DummyPosLoc;
var axisA = PositionComp.LocalMatrix.Up;
var axisAPerp = PositionComp.LocalMatrix.Forward;
var axisB = rotor.PositionComp.LocalMatrix.Up;
//empirical values because who knows what havoc sees behind this
//docs say one value should mean same effect for 2 ton or 200 ton vehicle
//but we have virtual mass blocks so real mass doesnt corespond to actual "weight" in game and varying gravity
data.SetSuspensionDamping(m_damping);
data.SetSuspensionStrength(m_strenth);
//Min/MaxHeight also define the limits of the suspension and SuspensionTravel lowers this limit
data.SetSuspensionMinLimit((BlockDefinition.MinHeight - m_height) * SuspensionTravel);
data.SetSuspensionMaxLimit((BlockDefinition.MaxHeight - m_height) * SuspensionTravel);
data.SetInBodySpace(posB, posA, axisB, axisA, suspensionAx, suspensionAx, RotorGrid.Physics, CubeGrid.Physics);
m_constraint = new HkConstraint(rotorBody, CubeGrid.Physics.RigidBody, data);
m_constraint.WantRuntime = true;
CubeGrid.Physics.AddConstraint(m_constraint);
if (!m_constraint.InWorld)
{
Debug.Fail("Constraint not added!");
CubeGrid.Physics.RemoveConstraint(m_constraint);
m_constraint = null;
return(false);
}
m_constraint.Enabled = true;
m_topBlock.Attach(this);
m_isAttached = true;
PropagateFriction(m_friction);
UpdateIsWorking();
if (m_updateBrakeNeeded)
{
UpdateBrake();
}
if (m_updateFrictionNeeded)
{
FrictionChanged();
}
if (updateGroup)
{
OnConstraintAdded(GridLinkTypeEnum.Physical, m_topGrid);
OnConstraintAdded(GridLinkTypeEnum.Logical, m_topGrid);
}
return(true);
}
}
return(false);
}
protected override bool Attach(MyAttachableTopBlockBase rotor, bool updateGroup = true)
{
if (rotor is MyMotorRotor)
{
Debug.Assert(rotor != null, "Rotor cannot be null!");
Debug.Assert(m_constraint == null, "Already attached, call detach first!");
Debug.Assert(m_connectionState.Value.TopBlockId == 0 || m_connectionState.Value.TopBlockId == rotor.EntityId, "m_rotorBlockId must be set prior calling Attach");
if (CubeGrid.Physics != null && CubeGrid.Physics.Enabled)
{
m_topBlock = rotor;
m_topGrid = m_topBlock.CubeGrid;
if (m_topGrid.Physics == null)
{
return(false);
}
if (CubeGrid.Physics.RigidBody == m_topGrid.Physics.RigidBody)
{
if (updateGroup && m_welded)
{
OnConstraintAdded(GridLinkTypeEnum.Physical, m_topGrid);
OnConstraintAdded(GridLinkTypeEnum.Logical, m_topGrid);
}
m_isAttached = true;
return(true);
}
var rotorBody = m_topGrid.Physics.RigidBody;
var data = new HkLimitedHingeConstraintData();
m_motor = new HkVelocityConstraintMotor(1.0f, 1000000f);
data.SetSolvingMethod(HkSolvingMethod.MethodStabilized);
data.Motor = m_motor;
data.DisableLimits();
var posA = DummyPosition;
var posB = rotor.Position * rotor.CubeGrid.GridSize;
var axisA = PositionComp.LocalMatrix.Up;
var axisAPerp = PositionComp.LocalMatrix.Forward;
var axisB = rotor.PositionComp.LocalMatrix.Up;
var axisBPerp = rotor.PositionComp.LocalMatrix.Forward;
data.SetInBodySpace(posA, posB, axisA, axisB, axisAPerp, axisBPerp, CubeGrid.Physics, m_topGrid.Physics);
m_constraint = new HkConstraint(CubeGrid.Physics.RigidBody, rotorBody, data);
m_constraint.WantRuntime = true;
CubeGrid.Physics.AddConstraint(m_constraint);
if (!m_constraint.InWorld)
{
CubeGrid.Physics.RemoveConstraint(m_constraint);
m_constraint.Dispose();
m_constraint = null;
return(false);
}
m_constraint.Enabled = true;
SetAngleToPhysics();
m_topBlock.Attach(this);
if (updateGroup)
{
OnConstraintAdded(GridLinkTypeEnum.Physical, m_topGrid);
OnConstraintAdded(GridLinkTypeEnum.Logical, m_topGrid);
m_topGrid.OnPhysicsChanged += cubeGrid_OnPhysicsChanged;
}
m_isAttached = true;
UpdateText();
return(true);
}
}
return(false);
}
