/// <summary>
/// Move the node by specified amount.
/// </summary>
/// <param name="node"></param>
/// <param name="delta"></param>
private void MoveNode(WayPoint.Node node, Vector3 delta)
{
node.Translate(delta);
Changed();
}
/// <summary>
/// Drag the current node/edge/path by mouse movement. Includes raise/lower
/// as well as horizontal drag.
/// </summary>
/// <param name="camera"></param>
private void DoDrag(Camera camera)
{
Vector2 pos = Vector2.Zero;
Vector2 prevPos = Vector2.Zero;
TouchContact touch = TouchInput.GetOldestTouch();
if (touch != null)
{
pos = touch.position;
prevPos = touch.previousPosition;
}
Vector3 newPosition = Vector3.Zero;
if (mode == Mode.Drag)
{
newPosition = TouchEdit.FindAtHeight(camera, TouchInput.GetAsPoint(TouchGestureManager.Get().DragGesture.DragPosition), height);
}
Vector3 delta = Vector3.Zero;
if (mode == Mode.Raise)
{
float dheight = MouseInput.Position.Y - MouseInput.PrevPosition.Y;
float kUpDownSpeed = -0.002f;
dheight *= kUpDownSpeed;
Vector3 dragPos = camera.ActualFrom;
bool asRoad = false;
if (node != null)
{
dragPos = node.RenderPosition(asRoad);
}
if (edge != null)
{
dragPos = (edge.Node0.RenderPosition(asRoad) + edge.Node1.RenderPosition(asRoad)) * 0.5f;
}
float dist = Vector3.Distance(dragPos, camera.ActualFrom);
dheight *= dist;
delta.Z = dheight;
}
if (newPosition != Vector3.Zero && Path != null)
{
if (actOnPath)
{
if (node != null)
{
Path.Translate(newPosition - node.Position);
}
else if (edge != null)
{
Path.Translate(newPosition - edge.HandlePosition);
}
}
else if (node != null)
{
node.Translate(newPosition - node.Position);
}
else if (edge != null)
{
edge.Translate(newPosition - edge.HandlePosition);
}
skeletonTimer = kSkeletonTime;
}
if ((delta != Vector3.Zero) && (Path != null))
{
if (actOnPath)
{
MovePath(Path, delta);
}
else if (node != null)
{
MoveNode(node, delta);
}
else if (edge != null)
{
MoveEdge(edge, delta);
}
skeletonTimer = kSkeletonTime;
}
}