// Update symbol appearance.
public void UpdateSymbol(GraphGrammarSymbol before, GraphGrammarSymbol after)
{
int symbolIndex = -1;
GraphGrammarNode node = null;
GraphGrammarConnection connection = null;
if (before is GraphGrammarNode)
{
node = (GraphGrammarNode)after;
symbolIndex = _nodes.FindIndex(x => x.Equals(before));
_nodes[symbolIndex].AlphabetID = node.AlphabetID;
_nodes[symbolIndex].Terminal = node.Terminal;
_nodes[symbolIndex].Name = node.Name;
_nodes[symbolIndex].Abbreviation = node.Abbreviation;
_nodes[symbolIndex].Description = node.Description;
_nodes[symbolIndex].OutlineColor = node.OutlineColor;
_nodes[symbolIndex].FilledColor = node.FilledColor;
_nodes[symbolIndex].TextColor = node.TextColor;
}
else if (before is GraphGrammarConnection)
{
connection = (GraphGrammarConnection)after;
symbolIndex = _connections.FindIndex(x => x.Equals(before));
_connections[symbolIndex].AlphabetID = connection.AlphabetID;
_connections[symbolIndex].Name = connection.Name;
_connections[symbolIndex].Description = connection.Description;
_connections[symbolIndex].OutlineColor = connection.OutlineColor;
_connections[symbolIndex].Requirement = connection.Requirement;
_connections[symbolIndex].Arrow = connection.Arrow;
}
return;
}
public GraphGrammar()
{
this._nodes = new List <GraphGrammarNode>();
this._connections = new List <GraphGrammarConnection>();
this._selectedSymbol = null;
this._error = new List <ValidationLabel>();
}
// Same symbols in mission grammar will be updated in the same time when the alphabet updated.
public static void OnAlphabetUpdated(GraphGrammarSymbol symbol)
{
GraphGrammarNode referenceNode = null;
GraphGrammarConnection referenceConnection = null;
if (symbol is GraphGrammarNode)
{
referenceNode = (GraphGrammarNode)symbol;
foreach (var group in _groups)
{
foreach (var rule in group.Rules)
{
foreach (var node in rule.SourceRule.Nodes)
{
if (node.AlphabetID == referenceNode.AlphabetID)
{
node.UpdateSymbolInfo(referenceNode);
}
}
foreach (var node in rule.ReplacementRule.Nodes)
{
if (node.AlphabetID == referenceNode.AlphabetID)
{
node.UpdateSymbolInfo(referenceNode);
}
}
}
}
}
else if (symbol is GraphGrammarConnection)
{
referenceConnection = (GraphGrammarConnection)symbol;
foreach (var group in _groups)
{
foreach (var rule in group.Rules)
{
foreach (var connection in rule.SourceRule.Connections)
{
if (connection.AlphabetID == referenceConnection.AlphabetID)
{
connection.UpdateSymbolInfo(referenceConnection);
}
}
foreach (var connection in rule.ReplacementRule.Connections)
{
if (connection.AlphabetID == referenceConnection.AlphabetID)
{
connection.UpdateSymbolInfo(referenceConnection);
}
}
}
}
}
}
// Add a new connection from another exist connection.
public GraphGrammarConnection AddConnection(GraphGrammarConnection connectionClone)
{
RevokeAllSelected();
// Deep copy.
GraphGrammarConnection connection = new GraphGrammarConnection(connectionClone);
connection.Selected = true;
_connections.Add(connection);
// Update the current connection.
_selectedSymbol = connection;
return(connection);
}
// Set all 'seleted' of symbols to false.
public void RevokeAllSelected()
{
foreach (var symbol in _nodes)
{
symbol.Selected = false;
}
foreach (var symbol in _connections)
{
symbol.Selected = symbol.StartSelected = symbol.EndSelected = false;
}
_selectedSymbol = null;
return;
}
// Add a new connection.
public void AddConnection()
{
// Revoke all symbols first.
RevokeAllSelected();
// Create a new connection.
GraphGrammarConnection connection = new GraphGrammarConnection();
connection.Selected = true;
_connections.Add(connection);
// Update the current connection.
_selectedSymbol = connection;
return;
}
// Add a new node from another exist node.
public GraphGrammarNode AddNode(GraphGrammarNode nodeClone)
{
RevokeAllSelected();
// Deep copy.
GraphGrammarNode node = new GraphGrammarNode(nodeClone);
node.Ordering = _nodes.Count + 1;
node.Selected = true;
_nodes.Add(node);
// Update the current node.
_selectedSymbol = node;
return(node);
}
// Add a new node.
public void AddNode()
{
// Revoke all symbols first.
RevokeAllSelected();
// Create a new node and update its ordering and selected status.
GraphGrammarNode node = new GraphGrammarNode(NodeTerminalType.NonTerminal);
node.Ordering = _nodes.Count + 1;
node.Selected = true;
_nodes.Add(node);
// Update the current node.
_selectedSymbol = node;
return;
}
// Pass the mouse position.
// Be careful for one thing. '_nodes' and '_connections' must pre-order by ordering.
public void TouchedSymbol(Vector2 pos)
{
// Find the 'points of selected connection'.
foreach (GraphGrammarConnection symbol in _connections.AsEnumerable().Reverse())
{
// This connection is selected, check its endpoints are in scope or not.
if (symbol.Selected)
{
// Initial all symbol first.
RevokeAllSelected();
// Update the symbol status. If out of selecting, disabled the connection.
if (symbol.IsInStartscope(pos))
{
symbol.Selected = true;
symbol.StartSelected = true;
}
else if (symbol.IsInEndscope(pos))
{
symbol.Selected = true;
symbol.EndSelected = true;
}
else
{
break;
}
// Update selected symbol.
_selectedSymbol = symbol;
return;
}
}
// Find the 'selected nodes'.
foreach (GraphGrammarNode symbol in _nodes.AsEnumerable().Reverse())
{
if (symbol.IsInScope(pos))
{
// Initial all symbol first.
RevokeAllSelected();
// Update the symbol status.
symbol.Selected = true;
// Update selected symbol.
_selectedSymbol = symbol;
return;
}
}
// Find the 'selected connections'.
foreach (GraphGrammarConnection symbol in _connections.AsEnumerable().Reverse())
{
float distance = HandleUtility.DistancePointLine((Vector3)pos, (Vector3)symbol.StartPosition, (Vector3)symbol.EndPosition);
if (distance < symbol.LineThickness)
{
// Initial all symbol first.
RevokeAllSelected();
// Update the symbol status.
symbol.Selected = true;
// Update selected symbol.
_selectedSymbol = symbol;
return;
}
}
// If anything has been found or not.
RevokeAllSelected();
_selectedSymbol = null;
return;
}
