/// <summary>
/// 获取两个细胞间的触手，如果不存在将创建
/// </summary>
/// <param name="cell1"></param>
/// <param name="cell2"></param>
/// <returns></returns>
private Tentacle getTentacle(Cell cellA, Cell cellB)
{
if (cellA.index > cellB.index)
{
Cell cell = cellA;
cellA = cellB;
cellB = cell;
}
string key = cellA.index + ":" + cellB.index;
if (tentacleDic.ContainsKey(key))
{
return tentacleDic[key];
}
Tentacle tentacle = new Tentacle();
tentacle.setNodes(cellA, cellB);
tentacleDic.Add(key, tentacle);
return tentacle;
}
