.TH TETRIS 6 "31st March 1989"
.SH NAME
tetris \- SunView block dropping game
.SH SYNOPSIS
.B tetris
[
.B "Sunview options"
]
.SH DESCRIPTION
.I Tetris
is a game involving dropping blocks. As they drop you can move them to
the left or to the right by clicking the left or right mouse buttons
respectively. Pressing the shift key while clicking the button causes
the falling shape to rotate anti-clockwise (left mouse button) or
clockwise (right mouse button). Pressing the middle mouse button causes
the shape to quickly drop. Note that the mouse must be in the window in
which the shapes are dropping for these actions to work correctly.
.PP
Points are scored for each block that comes to rest on the gradually
building up pile of blocks. Different blocks in different orientations
have different point values. When the pile reaches the top of the
screen and no further blocks can be dropped the game ends. Whenever a
full row of blocks across the screen is all completely filled in that
row is removed and all the blocks above it drop down a further row.
As more rows are deleted the blocks drop faster.
.PP
A high score table is kept which is retained between separate executions
of the game.
.PP
It looks better when run on a colour machine.
.SH OPTIONS
.I Tetris
takes standard
.I Sunview
options. (see 
.I suntools (1)
)
.SH FILES
.IP /usr/games/lib/tetris_scores
Top 10 high scores.
.SH "ENVIRONMENT VARIABLES"
.IP TETRIS
If set, your desired name for the high score table.
.SH "SEE ALSO"
.BI suntools (1)
.SH "BUGS"
The first rotation/fast-drop event in each game fails.