static void RenderCustomGizmos(Position positionData, GizmoType gizmoType)
{
for (int i = 0; i < positionData.nodes.Count; i++)
{
Position.PositionNode positionNode = positionData.nodes[i];
Vector3 position = positionData.nodes[i].position;
if (gizmoType == GizmoType.NotInSelectionHierarchy)
{
Gizmos.color = i == positionData.finishLineIndex ? Color.red : Color.green;
Gizmos.DrawSphere(position, .2f);
}
for (int c = 0; c < 4; c++)
{
int connection = positionNode.connectedIndexes[c];
if (connection == -1)
{
continue;
}
Vector3 mid = position * .5f + positionData.nodes[connection].position * .5f;
Gizmos.color = Color.black;
Gizmos.DrawLine(mid, position);
Gizmos.color = Color.cyan;
Gizmos.DrawLine(mid, positionData.nodes[connection].position);
}
}
}
private void ChangeNodeConnection(int nodeIndex)
{
if (nodeIndex == selectedNodeIndex || selectedNodeIndex == -1)
{
return;
}
EditorUtility.SetDirty(positionData);
Undo.RecordObject(positionData, "Change Node Connection");
Position.PositionNode selectedNode = positionData.nodes[selectedNodeIndex];
bool used = false;
for (int c = 0; c < 4; c++)
{
if (positionData.nodes[nodeIndex].connectedIndexes[c] == selectedNodeIndex)
{
positionData.nodes[nodeIndex].connectedIndexes[c] = -1;
used = true;
break;
}
}
if (!used)
{
for (int c = 0; c < 4; c++)
{
if (selectedNode.connectedIndexes[c] == nodeIndex)
{
selectedNode.connectedIndexes[c] = -1;
used = true;
break;
}
}
}
if (!used)
{
for (int c = 0; c < 4; c++)
{
if (selectedNode.connectedIndexes[c] == -1)
{
selectedNode.connectedIndexes[c] = nodeIndex;
break;
}
}
}
}
private void DoMidPoint(int nodeIndex)
{
Handles.color = new Color(1, 1, 1, .2f);
Position.PositionNode node = positionData.nodes[nodeIndex];
for (int c = 0; c < 4; c++)
{
int connection = node.connectedIndexes[c];
if (connection == -1)
{
continue;
}
if (selectedNodeIndex == nodeIndex || connection == selectedNodeIndex)
{
Position.PositionNode otherNode = positionData.nodes[connection];
Vector3 middle = Vector3.Lerp(node.position, otherNode.position, .5f);
Vector3 connectionDirection = otherNode.position - node.position;
Vector3 viewDirection = middle - SceneView.currentDrawingSceneView.camera.transform.position;
Vector3 cross = Vector3.Cross(connectionDirection, viewDirection).normalized;
Handles.DrawLine(middle + cross, middle - cross);
float handleScale = HandleUtility.GetHandleSize(middle);
if (Handles.Button(middle, Quaternion.identity, handleScale * .03f, handleScale * .05f, Handles.DotHandleCap))
{
EditorUtility.SetDirty(positionData);
Undo.RecordObject(positionData, "Insert Node");
node.connectedIndexes[c] = positionData.nodes.Count;
positionData.nodes.Add(new Position.PositionNode()
{
position = middle,
connectedIndexes = new int[4] {
connection, -1, -1, -1
}
});
}
}
}
positionData.nodes[nodeIndex] = node;
}
private void DeleteNode(int nodeIndex)
{
if (nodeIndex == -1)
{
return;
}
EditorUtility.SetDirty(positionData);
Undo.RecordObject(positionData, "Delete Node");
for (int i = 0; i < positionData.nodes.Count; i++)
{
Position.PositionNode previousNode = positionData.nodes[i];
for (int c = 0; c < 4; c++)
{
if (previousNode.connectedIndexes[c] == nodeIndex)
{
previousNode.connectedIndexes[c] = positionData.nodes[nodeIndex].connectedIndexes[0];
}
}
positionData.nodes[i] = previousNode;
}
positionData.nodes.RemoveAt(nodeIndex);
for (int i = 0; i < positionData.nodes.Count; i++)
{
Position.PositionNode node = positionData.nodes[i];
for (int c = 0; c < 4; c++)
{
if (node.connectedIndexes[c] > nodeIndex)
{
node.connectedIndexes[c]--;
}
}
positionData.nodes[i] = node;
}
}
private void DoNode(int nodeIndex)
{
Position.PositionNode positionNode = positionData.nodes[nodeIndex];
Vector3 newPosition = positionNode.position;
DoMidPoint(nodeIndex);
Handles.color = Color.green;
if (dragMode == DragMode.Project)
{
int controlId = GUIUtility.GetControlID(SurfaceHandle.hash, FocusType.Keyboard);
if (GUIUtility.keyboardControl == controlId)
{
switch (e.type)
{
case EventType.MouseUp:
OnSelect(nodeIndex);
break;
}
}
else if (HandleUtility.nearestControl == controlId)
{
switch (e.type)
{
case EventType.MouseDown:
if (e.button == 1 && selectedNodeIndex != nodeIndex && selectedNodeIndex != -1)
{
ChangeNodeConnection(nodeIndex);
e.Use();
}
break;
}
}
newPosition = SurfaceHandle.Do(controlId, newPosition, nodeIndex == positionData.finishLineIndex ? 1.5f : .5f);
}
else
{
if (selectedNodeIndex == nodeIndex)
{
newPosition = Handles.PositionHandle(newPosition, Quaternion.identity);
}
else
{
float handleScale = HandleUtility.GetHandleSize(newPosition);
if (Handles.Button(positionNode.position, Quaternion.identity, handleScale * .03f, handleScale * .05f, Handles.DotHandleCap))
{
OnSelect(nodeIndex);
}
}
}
if (newPosition != positionNode.position)
{
EditorUtility.SetDirty(positionData);
Undo.RecordObject(positionData, "Move Position");
positionNode.position = newPosition;
}
positionData.nodes[nodeIndex] = positionNode;
}
