public void DeleteInstruction(int index)
{
RungInstructionsLinkedListNode node = Head;
RungInstructionsLinkedListNode previousNode = null;
RungInstructionsLinkedListNode nextNode = null;
int tracker = 0;
// To delete the head, jsut call the next node the head
if (index == 0)
{
Head = Head.Next;
return;
}
// For other nodes, traverse the linked list to the index
while (tracker != index)
{
previousNode = node;
node = node.Next;
nextNode = node.Next;
tracker++;
}
// Join the preceding and following nodes.
previousNode.Next = nextNode;
nextNode.Previous = previousNode;
}
public int GetNumberOfInstructions()
{
RungInstructionsLinkedListNode node = Head;
int count = 0;
// For other nodes, traverse the linked list to the index
while (node != null)
{
//try { File.AppendAllText(@"C:\Temp\Debug.txt", $"{DateTime.Now.ToString("HH:mm:ss")} - In GetNumInstructions - Node {count} is: {node.Instruction.ASCIIName}.{node.ID}{Environment.NewLine}"); } catch(Exception) { }
node = node.Next;
count++;
}
return(count);
}
public void InsertInstruction(IBaseInstructionModel instruction, int index)
{
RungInstructionsLinkedListNode node = Head;
RungInstructionsLinkedListNode previousNode = null;
RungInstructionsLinkedListNode nextNode = null;
RungInstructionsLinkedListNode newNode = new RungInstructionsLinkedListNode(instruction);
int tracker = 0;
//try
//{
// File.AppendAllText(@"C:\Temp\Debug.txt", $"{DateTime.Now.ToString("HH:mm:ss")} - In InsertInstruction trying to insert {newNode.Instruction.ASCIIName}.{newNode.ID} instruction at index {index} {Environment.NewLine}");
// File.AppendAllText(@"C:\Temp\Debug.txt", $"{DateTime.Now.ToString("HH:mm:ss")} - Current Head: {node.Instruction.ASCIIName}.{node.ID} {Environment.NewLine}");
//}
//catch(Exception) { }
// Head
if (index == 0)
{
if (Head is null)
{
Head = newNode;
return;
}
Head.Previous = newNode;
newNode.Next = Head;
Head = newNode;
//try
//{
// File.AppendAllText(@"C:\Temp\Debug.txt", $"{DateTime.Now.ToString("HH:mm:ss")} - Changed Head to: {Head.Instruction.ASCIIName}.{Head.ID} {Environment.NewLine}");
// File.AppendAllText(@"C:\Temp\Debug.txt", $"{DateTime.Now.ToString("HH:mm:ss")} - RungInstructionLinkedList.Count: {this.GetNumberOfInstructions()} {Environment.NewLine}");
//}
//catch(Exception) { }
return;
}
// For other nodes, traverse the linked list to the index
while (tracker != index)
{
previousNode = node;
node = node.Next;
nextNode = node.Next;
tracker++;
//try { File.AppendAllText(@"C:\Temp\Debug.txt", $"{DateTime.Now.ToString("HH:mm:ss")} - Node {tracker} is: {node.Instruction.ASCIIName}.{node.ID} {Environment.NewLine}"); } catch(Exception) { }
}
// Join the preceding and following nodes.
previousNode.Next = newNode;
node.Previous = newNode;
//try
//{
// File.AppendAllText(@"C:\Temp\Debug.txt", $"{DateTime.Now.ToString("HH:mm:ss")} - Changed Node {tracker} to: {node.Instruction.ASCIIName}.{node.ID} {Environment.NewLine}");
// File.AppendAllText(@"C:\Temp\Debug.txt", $"{DateTime.Now.ToString("HH:mm:ss")} - Node {tracker}.Previous: {previousNode.Instruction.ASCIIName}.{node.ID}{Environment.NewLine}");
// File.AppendAllText(@"C:\Temp\Debug.txt", $"{DateTime.Now.ToString("HH:mm:ss")} - Node {tracker}.Next : {nextNode.Instruction.ASCIIName}.{node.ID} {Environment.NewLine}");
//}
//catch(Exception){ }
}