public virtual void move(String movestring, MovestringEndingDelegate callback, int timeout)
{
this.movestring = new Movestring(movestring, callback, this, timeout);
}
public Movestring(String movestring, MovestringEndingDelegate callback, Entity e, int timeout)
{
ent = e;
if (callback != null) on_done += callback;
this.timeout = timeout;
MatchCollection matches = regex.Matches(movestring);
GroupCollection groups;
Queue<MovestringCommand> command_queue = new Queue<MovestringCommand>();
Queue<int> param_queue = new Queue<int>();
restart();
if (String.IsNullOrEmpty(movestring)) {
commands = new MovestringCommand[1];
parameters = new int[1];
commands[0] = MovestringCommand.Stop;
parameters[0] = NO_NUMBER;
stop(false);
return;
}
MovestringCommand command;
int parameter;
bool open_ended = true;
bool time_consuming = false;
foreach (Match match in matches) {
groups = match.Groups;
parameter = NO_NUMBER;
if (!String.IsNullOrEmpty(groups[2].Value)) parameter = Int32.Parse(groups[2].Value);
param_queue.Enqueue(parameter);
// WHO HERE LIKES HUGE SWITCHES? YEAH!!
switch (groups[1].Value) {
case "B": // loop back to start.
// This normally takes no number parameter, but unlike VERGE, you can include one, in which case
// it will loop that many times, then stop.
if (!time_consuming) {
command = MovestringCommand.Stop; // sanity check against inescapable processing loop
parameter = NO_NUMBER;
}
else command = MovestringCommand.Loop;
open_ended = false;
break;
case "T": // switch to pixel coordinates
command = MovestringCommand.TileMode;
break;
case "P": // switch to tile coordinates
command = MovestringCommand.PixelMode;
break;
case "Z": // frame switch (may or may not have a number parameter)
// This locks the entity into the specified frame, suppressing animation during movement. In VERGE, setting it to 0
// restored the entity to normal animation, but this is a problem if you want to lock it at frame 0. Thus, I'm changing
// the rule: Z0 locks the entity at frame 0, and Z with no number after it restores normal animation.
// Be warned that this may mess up the occasional .MAP-embedded movestring.
command = MovestringCommand.Frame;
break;
case "F": // face (not necessary, since a distance-0 move accomplishes the same thing)
command = MovestringCommand.Face;
break;
case "U": // move up
command = MovestringCommand.Up;
time_consuming = true;
break;
case "D": // move down
command = MovestringCommand.Down;
time_consuming = true;
break;
case "L": // move left
command = MovestringCommand.Left;
time_consuming = true;
break;
case "R": // move right
command = MovestringCommand.Right;
time_consuming = true;
break;
case "W": // wait
command = MovestringCommand.Wait;
time_consuming = true;
break;
case "X": // walk straight to specific x
command = MovestringCommand.ToX;
time_consuming = true;
break;
case "Y": // walk straight to specific y
command = MovestringCommand.ToY;
time_consuming = true;
break;
default: throw new MalformedMovestringException(movestring);
}
command_queue.Enqueue(command);
}
if (open_ended) {
command_queue.Enqueue(MovestringCommand.Stop);
param_queue.Enqueue(Movestring.NO_NUMBER);
}
commands = new MovestringCommand[command_queue.Count];
parameters = new int[commands.Length];
for (int i = 0; i < commands.Length; i++) {
commands[i] = command_queue.Dequeue();
parameters[i] = param_queue.Dequeue();
}
}
public virtual void move(String movestring, MovestringEndingDelegate callback)
{
this.move(movestring, callback, Movestring.NEVER_TIMEOUT);
}
public Movestring(String movestring, MovestringEndingDelegate callback, Entity e)
: this(movestring, callback, e, NEVER_TIMEOUT)
{
}