public void Follow(WorldObject target)
{
if (target == null)
return;
Path path = null;
bool moving = false;
Position pathEndPosition = target.GetPosition();
DateTime previousMovingTime = DateTime.MinValue;
ScheduleAction(() =>
{
if (!target.IsValid)
return;
if (target.MapID != Player.MapID)
{
Log("Trying to follow a target on another map", Client.UI.LogLevel.Warning);
CancelActionsByFlag(ActionFlag.Movement);
return;
}
var distance = target - Player.GetPosition();
// check if we even need to move
if (distance.Length < FollowMovementEpsilon)
{
if (path != null)
{
var stopMoving = new MovementPacket(WorldCommand.MSG_MOVE_STOP)
{
GUID = Player.GUID,
X = Player.X,
Y = Player.Y,
Z = Player.Z,
O = Player.O
};
SendPacket(stopMoving);
Player.SetPosition(stopMoving.GetPosition());
moving = false;
path = null;
HandleTriggerInput(TriggerActionType.DestinationReached, true);
}
return;
}
float targetMovement = (target - pathEndPosition).Length;
if (targetMovement > FollowTargetRecalculatePathEpsilon)
path = null;
else if (distance.Length >= FollowMovementEpsilon && distance.Length <= FollowTargetRecalculatePathEpsilon)
path = null;
if (path == null)
{
using (var detour = new DetourCLI.Detour())
{
List<MapCLI.Point> resultPath;
var findPathResult = detour.FindPath(Player.X, Player.Y, Player.Z,
target.X, target.Y, target.Z,
Player.MapID, out resultPath);
if (findPathResult != PathType.Complete)
{
HandleTriggerInput(TriggerActionType.DestinationReached, false);
CancelActionsByFlag(ActionFlag.Movement);
return;
}
path = new Path(resultPath, Player.Speed, Player.MapID);
pathEndPosition = target.GetPosition();
}
}
if (!moving)
{
moving = true;
var facing = new MovementPacket(WorldCommand.MSG_MOVE_SET_FACING)
{
GUID = Player.GUID,
flags = MovementFlags.MOVEMENTFLAG_FORWARD,
X = Player.X,
Y = Player.Y,
Z = Player.Z,
O = path.CurrentOrientation
};
SendPacket(facing);
Player.SetPosition(facing.GetPosition());
var startMoving = new MovementPacket(WorldCommand.MSG_MOVE_START_FORWARD)
{
GUID = Player.GUID,
flags = MovementFlags.MOVEMENTFLAG_FORWARD,
X = Player.X,
Y = Player.Y,
Z = Player.Z,
O = path.CurrentOrientation
};
SendPacket(startMoving);
previousMovingTime = DateTime.Now;
return;
}
Point progressPosition = path.MoveAlongPath((float)(DateTime.Now - previousMovingTime).TotalSeconds);
Player.SetPosition(progressPosition.X, progressPosition.Y, progressPosition.Z);
previousMovingTime = DateTime.Now;
var heartbeat = new MovementPacket(WorldCommand.MSG_MOVE_HEARTBEAT)
{
GUID = Player.GUID,
flags = MovementFlags.MOVEMENTFLAG_FORWARD,
X = Player.X,
Y = Player.Y,
Z = Player.Z,
O = path.CurrentOrientation
};
SendPacket(heartbeat);
}, new TimeSpan(0, 0, 0, 0, 100), flags: ActionFlag.Movement);
}