public override bool Connect(Port port)
{
if (!port.IsStatePort)
{
return(false);
}
if (object.ReferenceEquals(port, this))
{
return(false);
}
if (port.IsStateRootPort)
{
return(port.Connect(this));
}
StatePort source = this;
StatePort target = (StatePort)port;
Connection existingTransition = connections.Find(t => object.ReferenceEquals(t.SourcePort, source) && object.ReferenceEquals(t.TargetPort, target));
if (existingTransition != null)
{
existingTransition.Disconnect();
return(true);
}
StateMachineChip targetRoot;
StateMachineChip sourceRoot;
{
if (source.IsStateRootPort)
{
sourceRoot = (StateMachineChip)source.Node;
}
else
{
sourceRoot = ((StateChip)source.Node).StateMachine;
}
targetRoot = ((StateChip)target.Node).StateMachine;
}
if (sourceRoot != null && targetRoot != null && !object.ReferenceEquals(sourceRoot, targetRoot))
{
return(false);
}
if (source.IsStateRootPort)
{
source.DisconnectAll();
}
StateMachineTransition transition = new StateMachineTransition(source, target);
connections.Add(transition);
port.connections.Add(transition);
EmitConnected(transition);
return(true);
}
protected CircuitNode(CircuitManager manager, int inputCount, int outputCount, bool hasReset, Port.PortType statePortType = StatePort.PortType.None)
{
this.inputPortCount = inputCount;
this.outputPortCount = outputCount;
this.hasReset = hasReset;
this.settings = CreateSettings();
int totalInputCount = inputCount + (hasReset ? 1 : 0);
inputPorts = new InputPort[totalInputCount];
for (int i = 0; i < inputCount; i++)
{
inputPorts[i] = new InputPort(this, false);
inputPorts[i].UnconnectedValue = DefaultInputValue(i);
inputPorts[i].ValueChanged += CircuitNode_ValueChanged;
inputPorts[i].Connected += CircuitNode_Connected;
inputPorts[i].Disconnected += CircuitNode_Disconnected;
}
if (hasReset)
{
inputPorts[inputCount] = new InputPort(this, true);
inputPorts[inputCount].UnconnectedValue = false;
inputPorts[inputCount].ValueChanged += CircuitNode_ValueChanged;
inputPorts[inputCount].Connected += CircuitNode_Connected;
inputPorts[inputCount].Disconnected += CircuitNode_Disconnected;
}
int totalOutputCount = outputCount + (hasReset ? 1 : 0);
outputPorts = new OutputPort[totalOutputCount];
for (int i = 0; i < outputCount; i++)
{
outputPorts[i] = new OutputPort(this, false);
outputPorts[i].expectedType = ExpectedOutputType(i);
outputPorts[i].Connected += CircuitNode_Connected;
outputPorts[i].Disconnected += CircuitNode_Disconnected;
}
if (hasReset)
{
outputPorts[outputCount] = new OutputPort(this, true);
outputPorts[outputCount].Connected += CircuitNode_Connected;
outputPorts[outputCount].Disconnected += CircuitNode_Disconnected;
}
if ((statePortType & Port.PortType.StatePort) != 0)
{
statePort = new StatePort(this, (statePortType & Port.PortType.StateRoot) == Port.PortType.StateRoot);
}
Manager = manager;
}
public StateChip NextStateAfterValidTransition()
{
StatePort port = activeState.statePort;
foreach (StateMachineTransition transition in port.connections.Where(t => object.ReferenceEquals(t.SourcePort, port)).OrderBy(t => t.TargetPort.Node))
{
DebugUtils.Assert(transition.TargetStatePort != null);
if (ValueToBool(transition.TransitionEnabledPort.GetValue()))
{
return((StateChip)transition.TargetStatePort.Node);
}
}
return(null);
}
private IEnumerable <StateChip> FindConnectedStates(StatePort port, HashSet <StatePort> visited)
{
if (visited.Contains(port))
{
yield break;
}
DebugUtils.Assert(!port.IsStateRootPort);
visited.Add(port);
yield return((StateChip)port.Node);
foreach (StateMachineTransition connection in port.connections)
{
StatePort otherPort = connection.GetOtherPort(port);
DebugUtils.Assert(otherPort != null);
foreach (StateChip state in FindConnectedStates(otherPort, visited))
{
yield return(state);
}
}
}
private StateMachineChip FindConnectedRoot(StatePort port, HashSet <StatePort> visited)
{
if (port.IsStateRootPort)
{
return((StateMachineChip)port.Node);
}
visited.Add(port);
foreach (StateMachineTransition connection in port.connections)
{
StatePort otherPort = connection.GetOtherPort(port);
if (otherPort != null && otherPort.IsStatePort && !visited.Contains(otherPort))
{
StateMachineChip root = FindConnectedRoot(otherPort, visited);
if (root != null)
{
return(root);
}
}
}
return(null);
}
public virtual void Destroy()
{
if (RingEvaluationPriority < 0)
{
return;
}
foreach (OutputPort port in outputPorts)
{
port.Destroy();
}
foreach (InputPort port in inputPorts)
{
port.Destroy();
}
if (statePort != null)
{
statePort.Destroy();
statePort = null;
}
if (manager != null)
{
manager.RemoveNode(this);
}
}