public bool createNewNode(Dialogue dialogue, ref List <Node> nodes)
{
// Make sure the dialogue asset is non-null:
if (dialogue == null)
{
return(false);
}
// Update node list: (initialize list and load existing nodes from dialogue asset)
if (nodes == null || nodes.Count == 0)
{
createNodeList(dialogue, ref nodes);
}
// Create a new node asset in dialogue:
DialogueNode newDNode = DialogueEditorHelper.createNewNode(dialogue);
// Create an editor node representation:
Node newNode = Node.Blank;
newNode.node = newDNode;
// Set newly created node as root node if no root has been assigned yet:
if (dialogue.rootNodes == null || dialogue.rootNodes.Length == 0)
{
// Create new root node in dialogue with no conditions:
DialogueConditions newRootConds = DialogueConditions.None;
DialogueRoot newRoot = new DialogueRoot()
{
node = newDNode, conditions = newRootConds
};
dialogue.rootNodes = new DialogueRoot[1] {
newRoot
};
newNode.rootId = 0;
// Save changes to asset:
DialogueEditorHelper.saveDialogueAsset(dialogue);
}
// Center the new node on screen:
newNode.rect.center = new Vector2(Screen.width, Screen.height) * 0.5f + offset;
// Add the new node representation to nodes list:
nodes.Add(newNode);
return(true);
}
void OnGUI()
{
// A) CONSTANTS & REFERENCES:
// UI constants:
const float uiHeaderHeight = 38f;
Rect areaRect = new Rect(0, uiHeaderHeight + 1, Screen.width, Screen.height - uiHeaderHeight - 1);
// Get the currently selected node:
DialogueNodeEditor.Node selected = DialogueNodeEditor.Node.Blank;
if (dialogue != null && nodes != null && selectedNodeIndex >= 0 && selectedNodeIndex < nodes.Count)
{
selected = nodes[selectedNodeIndex];
}
// Make sure there is always a node editor instance at hand:
if (nodeEditor == null)
{
nodeEditor = new DialogueNodeEditor();
}
// B) HEADER:
EditorGUI.DrawRect(new Rect(0, uiHeaderHeight, Screen.width, 1), Color.black);
EditorGUI.DrawRect(areaRect, Color.gray);
Dialogue newDialogue = (Dialogue)EditorGUI.ObjectField(new Rect(0, 0, 300, 16), "Dialogue asset", dialogue, typeof(Dialogue), false);
if (newDialogue != dialogue)
{
// Assign new asset and reset selections:
dialogue = newDialogue;
assetChanged = true;
nodeEditor.setSelection(DialogueNodeEditor.Node.Blank);
// Rebuild node graph:
if (dialogue != null)
{
DialogueNodeEditor.createNodeList(dialogue, ref nodes);
nodeEditor.autoLayoutNodes();
}
return;
}
//Buttons for layouting:
GUILayout.BeginArea(new Rect(Screen.width - 303, 0, 300, 18));
{
EditorGUILayout.BeginHorizontal();
if (GUILayout.Button("Save changes") && dialogue != null)
{
DialogueEditorHelper.saveDialogueAsset(dialogue);
assetChanged = false;
}
if (GUILayout.Button("Rebuild graph"))
{
DialogueNodeEditor.createNodeList(dialogue, ref nodes);
nodeEditor.autoLayoutNodes();
}
if (GUILayout.Button("Auto-Layout"))
{
nodeEditor.autoLayoutNodes();
}
EditorGUILayout.EndHorizontal();
}
GUILayout.EndArea();
// Buttons for creating, deleting and duplicating node assets:
GUILayout.BeginArea(new Rect(Screen.width - 303, 19, 300, 18));
{
EditorGUILayout.BeginHorizontal();
if (GUILayout.Button("New Node"))
{
// Create new node and select it right away:
if (nodeEditor.createNewNode(dialogue, ref nodes))
{
selectNode(nodes.Count - 1);
Repaint();
}
}
EditorGUI.BeginDisabledGroup(nodeEditor.Selected.node == null);
if (GUILayout.Button("Delete Node"))
{
deleteNode(nodeEditor.Selected.node);
}
if (GUILayout.Button("Duplicate"))
{
duplicateNode(nodeEditor.Selected);
}
EditorGUI.EndDisabledGroup();
EditorGUILayout.EndHorizontal();
}
GUILayout.EndArea();
EditorGUI.LabelField(new Rect(0, 16, 300, 16), "Asset status: ", assetStatusLines[(int)assetStatus]);
if (dialogue == null)
{
return;
}
// C) WORK AREA:
GUI.BeginGroup(areaRect);
GUI.BeginClip(new Rect(0, 0, areaRect.width, areaRect.height));
if (nodes == null && dialogue != null && dialogue.rootNodes != null)
{
DialogueNodeEditor.createNodeList(dialogue, ref nodes);
}
// Draw existing nodes in their relative positions here with all their dependencies.
if (dialogue != null && nodes != null)
{
assetChanged = assetChanged || nodeEditor.drawNodes(dialogue, nodes, scrollPosition);
}
// Navigation elements:
{
Rect navRect = new Rect(10, 10, 200, 70);
GUI.BeginGroup(navRect);
EditorGUI.DrawRect(new Rect(0, 0, navRect.width, navRect.height), Color.black);
EditorGUI.DrawRect(new Rect(1, 1, navRect.width - 2, navRect.height - 2), new Color(0.75f, 0.75f, 0.75f));
// Draw navigation buttons at the top left of the work space:
if (GUI.RepeatButton(new Rect(5, 25, 20, 20), "L"))
{
scrollPosition.x -= 10.0f;
}
if (GUI.RepeatButton(new Rect(45, 25, 20, 20), "R"))
{
scrollPosition.x += 10.0f;
}
if (GUI.RepeatButton(new Rect(25, 5, 20, 20), "D"))
{
scrollPosition.y -= 10.0f;
}
if (GUI.RepeatButton(new Rect(25, 45, 20, 20), "U"))
{
scrollPosition.y += 10.0f;
}
if (GUI.RepeatButton(new Rect(25, 25, 20, 20), "O"))
{
scrollPosition = Vector2.zero;
}
findNodeTxt = EditorGUI.TextField(new Rect(70, 5, 85, 16), findNodeTxt);
if (GUI.Button(new Rect(156, 5, 39, 16), "Find") && !string.IsNullOrEmpty(findNodeTxt))
{
int findNodeIndex = -1;
try
{
findNodeIndex = System.Convert.ToInt32(findNodeTxt);
}
catch (System.Exception) { }
for (int i = 0; i < nodes.Count; ++i)
{
DialogueNodeEditor.Node fNode = nodes[i];
DialogueNode fdNode = fNode.node;
if (fdNode == null)
{
continue;
}
if (i == findNodeIndex || fdNode.name.Contains(findNodeTxt))
{
selectNode(i);
centerSelected();
break;
}
}
}
findPos.x = EditorGUI.FloatField(new Rect(70, 22, 42, 16), findPos.x);
findPos.y = EditorGUI.FloatField(new Rect(113, 22, 42, 16), findPos.y);
if (GUI.Button(new Rect(156, 22, 39, 16), "Goto"))
{
scrollPosition.x = Mathf.Round(findPos.x - Screen.width * 0.5f);
scrollPosition.y = Mathf.Round(findPos.y - Screen.height * 0.5f);
}
DialogueNodeEditor.showReturnLinks = GUI.Toggle(new Rect(70, 40, 106, 16), DialogueNodeEditor.showReturnLinks, "Show full curves");
GUI.EndGroup();
}
GUI.EndClip();
GUI.EndGroup();
// D) ASSET CHANGES:
// Do some post-checks if the asset was changed:
if (assetChanged)
{
// Drop current selection if it has expired:
if (selected.node == null)
{
selectedNodeIndex = -1;
}
// Remove any invalid nodes from dialogue:
nodes.RemoveAll(o => o.node == null);
}
//Reset flags:
assetChanged = false;
}