private static void FindMousedOverItem(LayerMask compatibleObjects,
out PVCItem selectedItem, out int selectedMouthIndex)
{
selectedItem = null;
selectedMouthIndex = -1;
var mouseRay = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
RaycastHit hit;
if (Physics.Raycast(mouseRay, out hit, float.PositiveInfinity, compatibleObjects))
{
//Get the PVC item that was hit.
selectedItem = hit.collider.GetComponentInParent <PVCItem>();
UnityEngine.Assertions.Assert.IsNotNull(selectedItem,
"Hit something that wasn't a PVC item??");
//Get the specific mouth that was hit.
for (int i = 0; i < selectedItem.Mouths.Count; ++i)
{
if (hit.transform.IsChildOf(selectedItem.Mouths[i].MyTr))
{
selectedMouthIndex = i;
break;
}
}
}
}
private void OnDestroy()
{
if (target != null && ItemBeingConnected == (PVCItem)target)
{
ItemBeingConnected = null;
}
PersistentGizmos.CleanUp(target);
}
public override void OnInspectorGUI()
{
if (targets.Length != 1)
{
GUILayout.Label("Can only edit one item at a time!");
return;
}
var myItem = (PVCItem)target;
CustomInspectorGUI();
if (myItem == ItemBeingConnected)
{
GUILayout.Label("Click the mouth to connect to in the Scene view");
if (GUILayout.Button("Cancel"))
{
ItemBeingConnected = null;
}
//Force the scene GUI to be repainted every frame so it can catch mouse events.
Repaint();
}
else
{
UnityEngine.Assertions.Assert.IsNull(ItemBeingConnected,
"Other item is still being connected??");
//Do the GUI for each item (i.e. ask to connect or disconnect).
for (int mouthI = 0; mouthI < myItem.Mouths.Count; ++mouthI)
{
var mouth = myItem.Mouths[mouthI];
if (mouth.IsConnected)
{
GUILayout.BeginHorizontal();
if (GUILayout_CompactButton("Disconnect " + mouth.Name))
{
mouth.ConnectedMouth.OtherItem = null;
mouth.OtherItem = null;
//Find all siblings that still connect to this item.
var connectedObjs = new HashSet <GameObject>();
var toSearch = new Stack <PVCItem>();
toSearch.Push(myItem);
while (toSearch.Count > 0)
{
var item = toSearch.Pop();
if (!connectedObjs.Contains(item.gameObject))
{
connectedObjs.Add(item.gameObject);
foreach (var itemMouth in item.Mouths)
{
if (itemMouth.IsConnected)
{
toSearch.Push(itemMouth.OtherItem);
}
}
}
}
//Take any siblings that aren't connected to this item
// and move them to a new group.
Transform myParent = myItem.MyTr.parent,
newParent = null;
for (int childI = 0; childI < myParent.childCount; ++childI)
{
if (!connectedObjs.Contains(myParent.GetChild(childI).gameObject))
{
if (newParent == null)
{
newParent = new GameObject("Group").transform;
}
myParent.GetChild(childI).SetParent(newParent, true);
childI -= 1;
}
}
}
if (GUILayout_CompactButton("Reconnect " + mouth.Name))
{
mouth.OtherItem = null;
ItemBeingConnected = myItem;
ConnectIndex = mouthI;
}
GUILayout.EndHorizontal();
}
else
{
if (GUILayout_CompactButton("Connect " + mouth.Name))
{
ItemBeingConnected = myItem;
ConnectIndex = mouthI;
}
}
}
}
}
protected virtual void OnSceneGUI()
{
if (targets.Length != 1)
{
return;
}
var myItem = (PVCItem)target;
//Only need to do scene GUI stuff if this item is being connected to something.
if (myItem != ItemBeingConnected)
{
return;
}
//Intercept mouse events.
if (Event.current.type == EventType.Layout)
{
HandleUtility.AddDefaultControl(0);
}
var mouth = myItem.Mouths[ConnectIndex];
//Draw a sphere around the end being connected.
PersistentGizmos.Sphere(myItem, 0, mouth.MyTr.position, 1.0f,
new Color(0.25f, 1.0f, 0.25f, 0.325f));
//See if a compatible item is being moused over.
PVCItem selectedPvcItem;
int selectedMouthI;
FindMousedOverItem(myItem.CompatibleObjects, out selectedPvcItem, out selectedMouthI);
if (selectedMouthI >= 0)
{
//Draw a sphere around the mouth.
PersistentGizmos.Sphere(myItem, 1,
selectedPvcItem.Mouths[selectedMouthI].MyTr.position, 1.0f,
new Color(1.0f, 0.25f, 0.25f, 0.325f));
//If the mouse clicks, choose the connector mouth.
if (Event.current.type == EventType.MouseUp && Event.current.button == 0)
{
//Push the state onto the Undo stack before modifying it.
var itemsBeingChanged = new List <UnityEngine.Object>();
var parent1 = myItem.MyTr.parent;
itemsBeingChanged.AddRange(GetHierarchyFromRoot(parent1));
var parent2 = selectedPvcItem.MyTr.parent;
if (parent2 != parent1)
{
itemsBeingChanged.AddRange(GetHierarchyFromRoot(parent2));
}
//Make the connection.
//TODO: Doesn't always work?
selectedPvcItem.Mouths[selectedMouthI].OtherItem = myItem;
selectedPvcItem.Mouths[selectedMouthI].OtherItemMouthI = ConnectIndex;
var prop_thisMouth = serializedObject.FindProperty("mouths").GetArrayElementAtIndex(ConnectIndex);
prop_thisMouth.FindPropertyRelative("OtherItem").objectReferenceValue = selectedPvcItem;
prop_thisMouth.FindPropertyRelative("OtherItemMouthI").intValue = selectedMouthI;
//myItem.Mouths[ConnectIndex].OtherItem = selectedPvcItem;
//myItem.Mouths[ConnectIndex].OtherItemMouthI = selectedMouthI;
//Merge the groups.
if (parent1 != parent2)
{
while (parent2.childCount > 0)
{
parent2.GetChild(0).SetParent(parent1, true);
}
DestroyImmediate(parent2.gameObject);
}
//Clean up.
ItemBeingConnected = null;
PersistentGizmos.CleanUp(myItem);
serializedObject.ApplyModifiedProperties();
myItem.UpdateTransform();
Repaint();
}
}
}