//checks if the puzzle is complete and updates each layer in the process
bool IsComplete(ComboLayer currentLayer)
{
List <PowerLink> poweredNodes = new List <PowerLink>();
//find all of the powered downNodes in this layer
foreach (PowerLink node in currentLayer.GetRecieverNodes())
{
if (node.IsPowered())
{
poweredNodes.Add(node);
}
}
ComboLayer nextLayer = currentLayer.GetNextLayer();
//this part implies that the final layer needs only one node to be powered, or that the layer has only one node
//this section could be modified so that a set of nodes needs to be powered instead.
if (poweredNodes.Count > 0 && nextLayer == null)
{
return(true);
}
if (nextLayer == null)
{
return(false);
}
//turn off all the downNodes in the next layer
foreach (PowerLink node in nextLayer.GetRecieverNodes())
{
node.SetPower(false);
}
//if there are no powered nodes here, then this cannot be the solution
if (poweredNodes.Count == 0)
{
IsComplete(nextLayer); //this has to be done in order to turn off all the nodes on the layers above
return(false);
}
//for each powered upNode in this layer, find and turn on each corresponding downNode in the next layer
foreach (PowerLink node in poweredNodes)
{
foreach (GameObject upNode in node.GetAttachedOutNodes())
{
foreach (PowerLink downNode in nextLayer.GetRecieverNodes())
{
if (NodesInLine(upNode, downNode))
{
downNode.SetPower(true);
}
}
}
}
//do recursion onto the next layer
return(IsComplete(nextLayer));
}
void TurnOffLayer(ComboLayer currentLayer)
{
if (currentLayer == null)
{
return;
}
//find all of the powered downNodes in this layer
foreach (PowerLink node in currentLayer.GetRecieverNodes())
{
node.SetPower(false);
}
TurnOffLayer(currentLayer.GetNextLayer());
}
