internal MapArea(List <TraceCell> closedTrace, TileType areaType, ServerMap map)
: base(closedTrace.Count)
{
TraceCell prevTraceCell = null;
HashSet <int> unique = new HashSet <int>();
foreach (TraceCell traceCell in closedTrace)
{
ParseArea(traceCell, prevTraceCell, areaType, map, unique);
prevTraceCell = traceCell;
}
CalculateCellsCount();
}
private void ParseArea(TraceCell traceCell, TraceCell prevTraceCell, TileType areaType,
ServerMap map, HashSet <int> unique)
{
bool invalid;
ShortPoint borderPoint;
if (prevTraceCell != null && prevTraceCell.Direction == Direction.S && traceCell.Direction == Direction.W)
{
borderPoint = GetBorders(traceCell.X, traceCell.Y, Direction.S, areaType, map, out invalid);
AcceptBorders(borderPoint, invalid, map, unique);
}
borderPoint = GetBorders(traceCell.X, traceCell.Y, traceCell.Direction, areaType, map, out invalid);
AcceptBorders(borderPoint, invalid, map, unique);
}
private void Detect(ushort startX, ushort startY, HashSet <int> visitedTiles)
{
int initialValue = TraceCell.DirectionValue(startX, startY, _areaType, _map);
if (initialValue == 0 || initialValue == 15)
{
return;
}
List <TraceCell> closedTrace = new List <TraceCell>();
TraceCell prevCell = null;
int x = startX, y = startY;
do
{
TraceCell cell = null;
int directionValue = TraceCell.DirectionValue(x, y, _areaType, _map);
switch (directionValue)
{
case 1:
cell = new TraceCell(x, y, Direction.N);
break;
case 2:
cell = new TraceCell(x, y, Direction.E);
break;
case 3:
cell = new TraceCell(x, y, Direction.E);
break;
case 4:
cell = new TraceCell(x, y, Direction.W);
break;
case 5:
cell = new TraceCell(x, y, Direction.N);
break;
case 6:
cell = prevCell != null && prevCell.Direction == Direction.N
? new TraceCell(x, y, Direction.W)
: new TraceCell(x, y, Direction.E);
break;
case 7:
cell = new TraceCell(x, y, Direction.E);
break;
case 8:
cell = new TraceCell(x, y, Direction.S);
break;
case 9:
cell = prevCell != null && prevCell.Direction == Direction.E
? new TraceCell(x, y, Direction.N)
: new TraceCell(x, y, Direction.S);
break;
case 10:
cell = new TraceCell(x, y, Direction.S);
break;
case 11:
cell = new TraceCell(x, y, Direction.S);
break;
case 12:
cell = new TraceCell(x, y, Direction.W);
break;
case 13:
cell = new TraceCell(x, y, Direction.N);
break;
case 14:
cell = new TraceCell(x, y, Direction.W);
break;
}
if (cell != null)
{
closedTrace.Add(cell);
visitedTiles.Add(y << 16 | x);
x += cell.ScreenX;
y += cell.ScreenY;
prevCell = cell;
}
} while (x != startX || y != startY);
Add(new MapArea(closedTrace, _areaType, _map));
}