public string toDebugStr()
{
string debugStr = "piece of player " + (player.id + 1);
if (moveCells.Count != 0)
{
debugStr += " - move cells: ";
debugStr += CollectionUtils.CollToString(moveCells, cell => { return(cell.toDebugStr()); });
}
else
{
debugStr += " (no move cell)";
}
return(debugStr);
}
