public b2Joint(b2JointDef def)
{
Debug.Assert(def.BodyA != def.BodyB);
m_type = def.JointType;
Prev = null;
Next = null;
m_bodyA = def.BodyA;
m_bodyB = def.BodyB;
m_index = 0;
m_collideConnected = def.CollideConnected;
m_islandFlag = false;
m_userData = def.UserData;
m_edgeA = new b2JointEdge();
m_edgeB = new b2JointEdge();
}
protected b2Transform m_xf = b2Transform.Default; // the body origin transform
#endregion Fields
#region Constructors
public b2Body(b2BodyDef bd, b2World world)
{
m_flags = 0;
if (bd.bullet)
{
m_flags |= b2BodyFlags.e_bulletFlag;
}
if (bd.fixedRotation)
{
m_flags |= b2BodyFlags.e_fixedRotationFlag;
}
if (bd.allowSleep)
{
m_flags |= b2BodyFlags.e_autoSleepFlag;
}
if (bd.awake)
{
m_flags |= b2BodyFlags.e_awakeFlag;
}
if (bd.active)
{
m_flags |= b2BodyFlags.e_activeFlag;
}
m_world = world;
m_xf.p = bd.position;
m_xf.q.Set(bd.angle);
Sweep.localCenter.SetZero();
Sweep.c0 = m_xf.p;
Sweep.c = m_xf.p;
Sweep.a0 = bd.angle;
Sweep.a = bd.angle;
Sweep.alpha0 = 0.0f;
m_jointList = null;
m_contactList = null;
Prev = null;
Next = null;
m_linearVelocity = bd.linearVelocity;
m_angularVelocity = bd.angularVelocity;
m_linearDamping = bd.linearDamping;
m_angularDamping = bd.angularDamping;
m_gravityScale = bd.gravityScale;
m_force.SetZero();
m_torque = 0.0f;
m_sleepTime = 0.0f;
m_type = bd.type;
if (m_type == b2BodyType.b2_dynamicBody)
{
m_mass = 1.0f;
m_invMass = 1.0f;
}
else
{
m_mass = 0.0f;
m_invMass = 0.0f;
}
m_I = 0.0f;
m_invI = 0.0f;
m_userData = bd.userData;
m_fixtureList = null;
m_fixtureCount = 0;
}
public b2Joint(b2JointDef def)
{
Debug.Assert(def.BodyA != def.BodyB);
m_type = def.JointType;
Prev = null;
Next = null;
m_bodyA = def.BodyA;
m_bodyB = def.BodyB;
m_index = 0;
m_collideConnected = def.CollideConnected;
m_islandFlag = false;
m_userData = def.UserData;
m_edgeA = new b2JointEdge();
m_edgeB = new b2JointEdge();
}