如何解决这个复杂的递归问题，金字塔点系统

I'm trying to program a pyramid like score system for an ARG game and have come up with a problem. When users get into the game they start a new "pyramid" but if one start the game with a referer code from another player they become a child of this user and then kick points up the ladder.I'm trying to program a pyramid like score syst