private void ExecuteImplicitNode(CNode implicitNode)
{
m_inParameterBuffer.Clear();
m_outParameterBuffer.Clear();
// We first execute all implicit nodes
for (int i = 0; i < implicitNode.GetInParameterCount(); i++)
{
CInputPin inputPin = implicitNode.InputPins[i];
if (inputPin.SourceNode != null && inputPin.SourceNode.IsImplicit)
{
ExecuteImplicitNode(inputPin.SourceNode);
}
}
// Afterwards the parameters are added to the buffer
for (int i = 0; i < implicitNode.GetInParameterCount(); i++)
{
int stackIndex = implicitNode.InputPins[i].StackIndex;
if (stackIndex >= 0)
{
m_inParameterBuffer.Add(m_stack[stackIndex]);
}
else
{
m_inParameterBuffer.Add(null);
}
}
// After all input parameters are resolved we execute the node and add it's output parameters to the stack
implicitNode.Execute(s_nodeExecutionContext, m_inParameterBuffer, m_outParameterBuffer);
AddOutParametersToStack(implicitNode.OutParameterStackIndex, implicitNode.GetOutParameterCount());
m_inParameterBuffer.Clear();
m_outParameterBuffer.Clear();
}
/// <summary>
/// Executes the graph, returns the last node executed
/// </summary>
/// <param name="startNode"></param>
/// <param name="firstPin"></param>
/// <returns></returns>
protected CNode Execute(CNode startNode, CExecutionPin firstPin)
{
s_nodeExecutionContext.graph = this;
CExecutionPin nextExecutionPin = firstPin;
CNode nextNode = startNode;
while (nextNode != null)
{
m_inParameterBuffer.Clear();
m_outParameterBuffer.Clear();
CNode nodeToExecute = nextNode;
s_nodeExecutionContext.calledPin = null;
// We first execute all implicit nodes
for (int i = 0; i < nodeToExecute.GetInParameterCount(); i++)
{
CInputPin inputPin = nodeToExecute.InputPins[i];
if (inputPin.SourceNode != null && inputPin.SourceNode.IsImplicit)
{
ExecuteImplicitNode(inputPin.SourceNode);
}
}
// Afterwards the parameters are added to the buffer
for (int i = 0; i < nodeToExecute.GetInParameterCount(); i++)
{
int stackIndex = nodeToExecute.InputPins[i].StackIndex;
if (stackIndex >= 0)
{
m_inParameterBuffer.Add(m_stack[stackIndex]);
}
else
{
m_inParameterBuffer.Add(null);
}
}
s_nodeExecutionContext.calledPin = nextExecutionPin != null ? nextExecutionPin.TargetPin : null;
nextExecutionPin = nodeToExecute.Execute(s_nodeExecutionContext, m_inParameterBuffer, m_outParameterBuffer);
if (nextExecutionPin == null || nextExecutionPin.TargetNode == null)
{
nextExecutionPin = null;
int count = m_returnPointNodes.Count;
if (count > 0)
{
nextNode = m_returnPointNodes[count - 1];
m_returnPointNodes.RemoveAt(count - 1);
continue;
}
else
{
return(nextNode);
}
}
nextNode = nextExecutionPin.TargetNode;
AddOutParametersToStack(nodeToExecute.OutParameterStackIndex, nodeToExecute.GetOutParameterCount());
}
return(null);
}