public static void Move(AOIEntity aoiEntity, Cell newCell, Cell preCell)
{
aoiEntity.Cell = newCell;
preCell.Remove(aoiEntity);
newCell.Add(aoiEntity);
// 通知订阅该newCell Enter的Unit
foreach (KeyValuePair <long, AOIEntity> kv in newCell.SubsEnterEntities)
{
if (kv.Value.SubEnterCells.Contains(preCell.Id))
{
continue;
}
kv.Value.EnterSight(aoiEntity);
}
// 通知订阅preCell leave的Unit
foreach (KeyValuePair <long, AOIEntity> kv in preCell.SubsLeaveEntities)
{
// 如果新的cell仍然在对方订阅的subleave中
if (kv.Value.SubLeaveCells.Contains(newCell.Id))
{
continue;
}
kv.Value.LeaveSight(aoiEntity);
}
}
public static void Add(this AOIManagerComponent self, AOIEntity aoiEntity, float x, float y)
{
int cellX = (int)(x * 1000) / AOIManagerComponent.CellSize;
int cellY = (int)(y * 1000) / AOIManagerComponent.CellSize;
if (aoiEntity.ViewDistance == 0)
{
aoiEntity.ViewDistance = 1;
}
AOIHelper.CalcEnterAndLeaveCell(aoiEntity, cellX, cellY, aoiEntity.SubEnterCells, aoiEntity.SubLeaveCells);
// 遍历EnterCell
foreach (long cellId in aoiEntity.SubEnterCells)
{
Cell cell = self.GetCell(cellId);
aoiEntity.SubEnter(cell);
}
// 遍历LeaveCell
foreach (long cellId in aoiEntity.SubLeaveCells)
{
Cell cell = self.GetCell(cellId);
aoiEntity.SubLeave(cell);
}
// 自己加入的Cell
Cell selfCell = self.GetCell(AOIHelper.CreateCellId(cellX, cellY));
aoiEntity.Cell = selfCell;
selfCell.Add(aoiEntity);
// 通知订阅该Cell Enter的Unit
foreach (KeyValuePair <long, AOIEntity> kv in selfCell.SubsEnterEntities)
{
kv.Value.EnterSight(aoiEntity);
}
}