void OnSceneGUI()
{
// Thank to Dantus from Edelweiss for this helper
// You need them somewhere.
// Quaternion handleRotation = Quaternion.identity;
int someHashCode = GetHashCode();
GrappleInfo polyLine = (GrappleInfo)target;
Transform tr = polyLine.transform;
globalPos = new Vector3[polyLine.nodes.Length];
bool looped = polyLine.ClosePolyline;
for (int i = 0; i < polyLine.nodes.Length; i++)
{
Vector3 pos = tr.TransformPoint(polyLine.nodes[i]);
Handles.Label(pos, " " + i);
float size = HandleUtility.GetHandleSize(pos);
// Get the needed data before the handle
int controlIDBeforeHandle = GUIUtility.GetControlID(someHashCode, FocusType.Passive);
bool isEventUsedBeforeHandle = (Event.current.type == EventType.used);
//
// pos = Handles.PositionHandle(pos, Quaternion.identity);
Handles.ScaleValueHandle(0, pos, Quaternion.identity, size, Handles.SphereCap, 0);
if (curPointIndex == i)
{
pos = Handles.PositionHandle(pos, Quaternion.identity);
}
// Get the needed data after the handle
int controlIDAfterHandle = GUIUtility.GetControlID(someHashCode, FocusType.Passive);
bool isEventUsedByHandle = !isEventUsedBeforeHandle && (Event.current.type == EventType.used);
if
((controlIDBeforeHandle < GUIUtility.hotControl &&
GUIUtility.hotControl < controlIDAfterHandle) ||
isEventUsedByHandle)
{
curPointIndex = i;
}
polyLine.nodes[i] = tr.InverseTransformPoint(pos);
globalPos[i] = pos;
}
insideSceneGUI(polyLine);
Handles.DrawPolyLine(globalPos);
if (looped)
{
Handles.DrawLine(globalPos[0], globalPos[globalPos.Length - 1]);
}
}
void Delete(GrappleInfo polyLine, int index)
{
if (index < 0 || index >= polyLine.nodes.Length)
{
return;
}
ArrayList list = new ArrayList(polyLine.nodes);
list.RemoveAt(index);
polyLine.nodes = (Vector3[])list.ToArray(typeof(Vector3));
}
void insert(GrappleInfo polyLine, int position)
{
ArrayList list = new ArrayList(polyLine.nodes);
if (polyLine.nodes.Length == 0)
{
list.Add(Vector3.zero);
}
else if (polyLine.nodes.Length == 1)
{
if (position == 0)
{
list.Insert(0, Vector3.zero);
}
else
{
list.Add(polyLine.nodes[0] * 2);
}
}
else
{
//Vector3[] newArray = new Vector3[polyLine.nodes.Length+1];
if (position == -1) // last
{
position = polyLine.nodes.Length;
}
if (position == 0)
{
list.Insert(0, Vector3.zero);
}
else if (position == polyLine.nodes.Length)
{
list.Add(2 * polyLine.nodes[position - 1] - polyLine.nodes[position - 2]);
}
else
{
// between 2 points, use middle
list.Insert(position, 0.5f * (polyLine.nodes[position - 1] + polyLine.nodes[position]));
}
}
polyLine.nodes = (Vector3[])list.ToArray(typeof(Vector3));
}
void insideSceneGUI(GrappleInfo polyLine)
{
Rect size = new Rect(0, 0, 300, 200);
float sizeButton = 30;
Handles.BeginGUI();
//Handles.BeginGUI(new Rect(Screen.width - size.width - 10, Screen.height - size.height - 10, size.width, size.height));
GUI.BeginGroup(new Rect(Screen.width - size.width - 10, Screen.height - size.height - 50, size.width, size.height));
GUI.Box(size, "Ledge Polyline Editor");
Rect rc = new Rect(0, sizeButton, size.width, sizeButton);
GUI.Label(rc, "Double Clic on Circles to select a point");
rc.y += sizeButton;
if (curPointIndex != -1)
{
GUI.Label(rc, "Current Point " + curPointIndex);
rc.y += sizeButton;
rc.width = size.width / 3;
if (GUI.Button(rc, "Insert Before"))
{
insert(polyLine, curPointIndex);
}
rc.x += rc.width;
if (GUI.Button(rc, "Delete"))
{
Delete(polyLine, curPointIndex);
}
rc.x += rc.width;
if (GUI.Button(rc, "Insert After"))
{
insert(polyLine, curPointIndex + 1);
curPointIndex++;
}
}
else
{
if (polyLine.nodes.Length == 0)
{
if (GUI.Button(rc, "Insert"))
{
insert(polyLine, 0);
}
rc.y += sizeButton;
}
else
{
rc.width = size.width / 2;
if (GUI.Button(rc, "Insert First"))
{
insert(polyLine, 0);
curPointIndex = 0;
}
rc.x += rc.width;
if (GUI.Button(rc, "Insert Last"))
{
insert(polyLine, -1);
curPointIndex = polyLine.nodes.Length - 1;
}
rc.y += sizeButton;
}
}
if (polyLine.nodes.Length > 0)
{
//rc.y += sizeButton;
rc.width = size.width / 2;
rc.x = 0;
rc.y += sizeButton + 10;
if (GUI.Button(rc, "Clear All"))
{
polyLine.nodes = new Vector3[0];
curPointIndex = -1;
}
rc.x += rc.width;
if (GUI.Button(rc, "Reset y"))
{
for (int i = 0; i < polyLine.nodes.Length; i++)
{
polyLine.nodes[i].y = 0;
}
}
}
rc.y += sizeButton + 10;
rc.x = 0;
rc.width = size.width;
if (hideDefaultHandle)
{
if (GUI.Button(rc, "Show Main Transform"))
{
hideDefaultHandle = false;
DefaultHandles.Hidden = hideDefaultHandle;
}
}
else
{
if (GUI.Button(rc, "Hide Main Transform"))
{
hideDefaultHandle = true;
DefaultHandles.Hidden = hideDefaultHandle;
}
}
GUI.EndGroup();
Handles.EndGUI();
}
