/// <summary>
/// Returns an array of all currently tracked
/// <see cref="KinectSkeletonJoint"/> components.
/// </summary>
/// <returns>A copy of the <see cref="KinectSkeletonJoint"/> component array.</returns>
public KinectSkeletonJoint[] GetJoints()
{
var joints = new KinectSkeletonJoint[this.m_JointCount];
Array.Copy(this.m_Joints, joints, this.m_JointCount);
return(joints);
}
private void FixJointHierarchy(KinectSkeletonJoint joint)
{
// I'm not 100% sure if this is right,
// but at the moment it works fine.
for (int i = 0; i < this.m_JointCount; ++i)
{
if (this.m_Joints[i].transform.parent == joint.transform.parent &&
KinectHelper.InJointTypeHierachy(joint.jointType, this.m_Joints[i].jointType))
{
SetJointParentWithoutRebuild(this.m_Joints[i], joint.transform);
}
}
}
public int GetJointDepth(KinectSkeletonJoint joint)
{
var parent = joint.transform;
var depth = 0;
while (transform != parent && parent != null)
{
++depth;
parent = parent.parent;
}
return(parent != null ? depth : -1);
}
/// <summary>
/// Returns the parent <see cref="KinectSkeletonJoint"/> of a given
/// <see cref="JointType"/> in the hierarchy.
/// </summary>
/// <param name="jointType">The parent joint.</param>
/// <returns>The component instance or <c>null</c>.</returns>
public KinectSkeletonJoint GetParentJoint(JointType jointType)
{
KinectSkeletonJoint joint = null;
do
{
var nextType = KinectHelper.parentJointTypes[(int)jointType];
// Avoid endless loop on SpineBase.
if (nextType == jointType)
{
break;
}
jointType = nextType;
joint = GetJoint(jointType);
} while(joint == null);
return(joint);
}
private void AddJointToHierarchy(KinectSkeletonJoint joint)
{
var depth = GetJointDepth(joint);
// Fast path if the joint is added to the hierarchy of
// the deepest child.
if (this.m_JointCount == 0 || GetJointDepth(this.m_Joints[this.m_JointCount - 1]) <= depth)
{
InsertJointAt(joint, this.m_JointCount);
return;
}
int index = 0;
while (GetJointDepth(this.m_Joints[index]) < depth)
{
++index;
}
Array.Copy(this.m_Joints, index, this.m_Joints, index + 1, this.m_JointCount - index);
InsertJointAt(joint, index);
}
/// <summary>
/// Gets or creates a joint in the skeleton hierarchy.
/// </summary>
/// <param name="jointType">The target joint.</param>
/// <returns>The created or found component instance.</returns>
public KinectSkeletonJoint GetOrCreateJoint(JointType jointType)
{
var joint = GetJoint(jointType);
if (joint != null)
{
return(joint);
}
var parent = GetParentJoint(jointType);
joint = KinectSkeletonJoint.Create(jointType);
joint.transform.position = transform.position + KinectHelper.tPose[(int)jointType];
// This is required because changing the parent transform fires
// the OnTransformChildrenChanged directly. Since rebuilding the
// hierarchy is useless here, it will be skipped.
SetJointParentWithoutRebuild(joint, parent == null ? transform : parent.transform);
AddJointToHierarchy(joint);
FixJointHierarchy(joint);
return(joint);
}
private void SetJointParentWithoutRebuild(KinectSkeletonJoint joint, Transform parent)
{
this.m_SkipRebuild = true;
joint.transform.parent = parent;
this.m_SkipRebuild = false;
}
private void InsertJointAt(KinectSkeletonJoint joint, int index)
{
this.m_Joints[index] = joint;
this.m_JointTypeToJoint[(int)joint.jointType] = joint;
++this.m_JointCount;
}
public static void DrawJointGizmos(KinectSkeletonJoint joint, GizmoType type)
{
Gizmos.color = KinectEditorUtils.darkGreen;
Gizmos.DrawWireSphere(joint.transform.position, 0.02f);
}
public void OnEnable()
{
this.m_Me = (KinectSkeletonJoint)target;
}