/// <summary>
/// called by Physics World just before rigid body is added to world.
/// the current rigid body properties are used to rebuild the rigid body.
/// </summary>
internal virtual bool _BuildCollisionObject()
{
WorldController world = GetWorld();
if (collisionObject != null)
{
if (isInWorld && world != null)
{
world.RemoveCollisionObject(this);
}
}
if (transform.localScale != Vector3.one)
{
Debug.LogError("The local scale on this collision shape is not one. Bullet physics does not support scaling on a rigid body world transform. Instead alter the dimensions of the CollisionShape.", transform);
}
m_collisionShape = GetComponent <BCollisionShape>();
if (m_collisionShape == null)
{
Debug.LogError("There was no collision shape component attached to this BRigidBody. " + name, transform);
return(false);
}
CollisionShape cs = m_collisionShape.GetCollisionShape();
//rigidbody is dynamic if and only if mass is non zero, otherwise static
if (collisionObject == null)
{
collisionObject = new CollisionObject();
collisionObject.CollisionShape = cs;
collisionObject.UserObject = this;
MatrixB worldTrans;
QuaternionB q = transform.rotation.ToBullet();
MatrixB.RotationQuaternion(ref q, out worldTrans);
worldTrans.Origin = transform.position.ToBullet();
collisionObject.WorldTransform = worldTrans;
collisionObject.CollisionFlags = m_collisionFlags;
}
else
{
collisionObject.CollisionShape = cs;
MatrixB worldTrans;
QuaternionB q = transform.rotation.ToBullet();
MatrixB.RotationQuaternion(ref q, out worldTrans);
worldTrans.Origin = transform.position.ToBullet();
collisionObject.WorldTransform = worldTrans;
collisionObject.CollisionFlags = m_collisionFlags;
}
return(true);
}
public virtual void SetRotation(Quaternion rotation)
{
if (isInWorld)
{
MatrixB newTrans = collisionObject.WorldTransform;
QuaternionB q = rotation.ToBullet();
MatrixB.RotationQuaternion(ref q, out newTrans);
newTrans.Origin = transform.position.ToBullet();
collisionObject.WorldTransform = newTrans;
transform.rotation = rotation;
}
else
{
transform.rotation = rotation;
}
}
