/// <summary>
/// Removes a command of a certain trigger, returns null and removes nothing if not found.
/// </summary>
/// <param name="cmd"></param>
/// <returns> The removed command. </returns>
public Command Remove(Command cmd)
{
Command ret = null;
DualPointer use = head;
for(int i = 0; i < size; i++)
{
if (use.MyCommand.Trigger == cmd.Trigger)
{
ret = use.MyCommand;
break;
}
else
{
use = head.GetNextPointer;
}
}
return ret;
}
/// <summary>
/// Adds a command to the tail of the linked list.
/// </summary>
/// <param name="cmd"></param>
public void Add(Command cmd)
{
switch(size)
{
case 0:
head = new DualPointer(null, null, cmd);
tail = new DualPointer(null, null, cmd);
break;
case 1:
tail.GetPreviousPointer = head;
tail.MyCommand = cmd;
head.GetNextPointer = tail;
break;
default:
tail.GetPreviousPointer = tail;
tail.MyCommand = cmd;
break;
}
size++;
}
/// <summary>
/// Adds a command to the top of the stack.
/// </summary>
/// <param name="cmd"></param>
public void Push(Command cmd)
{
}
/// <summary>
/// Constructor for the DualPointer.
/// </summary>
/// <param name="bef"></param>
/// <param name="af"></param>
/// <param name="comd"></param>
public DualPointer(DualPointer bef, DualPointer af, Command comd)
{
before = bef;
after = af;
myComd = comd;
}