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From: deichman@cod.NOSC.MIL (Shane D. Deichman)
Newsgroups: comp.sys.mac.games
Subject: Re: Tetris Scoring (Definitive! i think :-)
Message-ID: <2940@cod.NOSC.MIL>
Date: 20 Mar 91 16:37:56 GMT
References: <1991Mar18.211054.438@nic.csu.net> <2937@cod.NOSC.MIL> <1991Mar19.142548.12090@pbs.org>
Organization: Naval Ocean Systems Center, San Diego
Lines: 39

O.K., I think I've got it now.  Thanx to a previous poster who
"reminded" me of a few subtleties in the scoring, here's what
I think is the base scoring scheme:

Score = Base + 2*Lvl + Ht of Block + Number of layers dropped

The base, as mentioned in an earlier post, is valued from 5 to 7.

The level is from 0 - 9, the level of play.

Ht of Block is the layer which the block finally comes to rest
upon (as counted from the bottom).

Number of layers dropped is the number of layers from the point at
which the space bar is struck to where the block finally comes to 
rest.

Since the well is 25 layers deep, the maximum score one can acquire
for a single piece is:

Score = 7 + 2*9 + 25 + 0 = 50

Note that the last two terms are mutually exclusive -- if the well is
so high that you actually get 25 points for the third term, it's "Game
Over."  If the well is empty and you hit the space bar immediately, then
you'd get 24 - 25 points for the fourth term (and zero for the third).
Unlike the arcade and Nintendo versions, there is no bonus for deleting
lines (or getting what these two versions call a "Tetris" -- deleting
four lines at once).

<I hope nobody asks how to score Welltris -- talk about a tough game!
I still haven't figured out all of the dynamics of dropping pieces on
a corner...  you get some pretty wierd results!>

-shane

p.s.  I believe the "cheating" method of Tetris uses a similar scoring
	method to the one described above.  Those in the know will know
	what I'm talking about....