Ceiling: Difference between revisions

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In some tetris games the [[Glossary#C|ceiling]] can prevent a piece from rotating. It's common that these games lack [[wall kick]]s as well. Classic games with these rules include [[Tetris (IBM PC)]] and [[Tetris (Sega)]].
The '''ceiling''' is the top of the visible portion of the [[playfield]].
Not all games have the [[piece]]s interact with the ceiling the same way.
 
The official [[Tetris Guideline]] term for the ceiling is the '''Skyline'''.
 
== Enter above ceiling ==
In most newer games and a few older games, pieces enter the playfield at least partially in the vanish zone.
 
*[[Tetris (Atari)]] and its NES port
*[[Puyo Puyo]]
*[[Hexion]]
*Most games produced with [[BPS]] involvement:
**[[Tetris 2]] (North America)
**[[Tetris 2 and Bombliss]] (Japan) and [[Tetris Blast]] (North America)
**[[Tetris 4D]]
**[[The New Tetris]]
**Games based on the [[Tetris Guideline]]
*[[SuperLite 1500 Series: The Tetris]]
 
== Enter below ceiling ==
The majority of games produced prior to 2001 placed new pieces with their top edge touching the ceiling.
This also includes [[Tetris The Grand Master 3 Terror-Instinct]] (2005), as one of the several Guideline exemptions that it received for consistency with previous games in the series.
 
In [[Tetris 99]] pieces normally spawn below the ceiling, but if the spawn area is blocked they may spawn up to two rows higher.
 
== Enter below solid ceiling ==
In some games, the [[Glossary#C|ceiling]] can prevent a piece from rotating. It's common that these games lack [[wall kick]]s as well. Classic games with these rules include [[Tetris (IBM PC)]] and [[Tetris (Sega)]].
{|
{|
|- valign="top"
|- valign="top"
|<playfield>
|<playfield>
....TTT...
GGGGGGGGGG
....T.....
....LLL...
....L.....
..........
..........
..........
..........
Line 12: Line 39:
L cannot rotate
L cannot rotate
|<playfield>
|<playfield>
GGGGGGGGGG
..........
..........
....TTT...
....LLL...
....T.....
....L.....
..........
..........
..........
..........
Line 21: Line 49:
It falls a row
It falls a row
|<playfield>
|<playfield>
.....T....
GGGGGGGGGG
.....T....
.....L....
.....TT...
.....L....
.....LL...
..........
..........
..........
..........
Line 35: Line 64:
|- valign="top"
|- valign="top"
|<playfield>
|<playfield>
GGGGGGGGGG
...LLL....
...LLL....
...L......
...L......
Line 43: Line 73:
</playfield>
</playfield>
|<playfield>
|<playfield>
GGGGLGGGGG
....L.....
....L.....
....LL....
....LL....
Line 52: Line 83:
Free to rotate
Free to rotate
|<playfield>
|<playfield>
GGGGGGGGGG
....L.....
....L.....
....L.....
....L.....
Line 61: Line 93:
|}
|}


In many [[SRS]] games the pieces actually spawn ''above'' the ceiling.
== Partially solid ceiling ==
 
''[[Tetris Plus]]'' and ''[[Tetris Plus 2]]'' is notable for having a solid ceiling with a hole through which pieces spawn. In Endless mode pieces spawn in the first row below the ceiling, and can still interact with the ceiling if they are rotated before falling another row.
{|
|- valign="top"
|<playfield>
GGG....GGG
....LLL...
....L....
..........
..........
..........
..........
</playfield>
L can rotate
|<playfield>
GGG.LL.GGG
.....L....
.....L....
..........
..........
..........
..........
</playfield>
L can move right
|<playfield>
GGG..LLGGG
......L...
......L...
..........
..........
..........
..........
</playfield>
|<playfield>
GGG...LXGG
.......L..
.......L..
..........
..........
..........
..........
</playfield>
Blocked by ceiling
|}
 
 


[[Category:Mobility]]
[[Category:Gameplay]]

Latest revision as of 13:38, 20 August 2023

The ceiling is the top of the visible portion of the playfield. Not all games have the pieces interact with the ceiling the same way.

The official Tetris Guideline term for the ceiling is the Skyline.

Enter above ceiling

In most newer games and a few older games, pieces enter the playfield at least partially in the vanish zone.

Enter below ceiling

The majority of games produced prior to 2001 placed new pieces with their top edge touching the ceiling. This also includes Tetris The Grand Master 3 Terror-Instinct (2005), as one of the several Guideline exemptions that it received for consistency with previous games in the series.

In Tetris 99 pieces normally spawn below the ceiling, but if the spawn area is blocked they may spawn up to two rows higher.

Enter below solid ceiling

In some games, the ceiling can prevent a piece from rotating. It's common that these games lack wall kicks as well. Classic games with these rules include Tetris (IBM PC) and Tetris (Sega).

GGGGGGGGGG
....LLL...
....L.....
..........
..........
..........
..........

L cannot rotate

GGGGGGGGGG
..........
....LLL...
....L.....
..........
..........
..........

It falls a row

GGGGGGGGGG
.....L....
.....L....
.....LL...
..........
..........
..........

Now it can rotate freely

Modern games do not have this restriction.

GGGGGGGGGG
...LLL....
...L......
..........
..........
..........
..........
GGGGLGGGGG
....L.....
....LL....
..........
..........
..........
..........

Free to rotate

GGGGGGGGGG
....L.....
....L.....
....LL....
..........
..........
..........

Partially solid ceiling

Tetris Plus and Tetris Plus 2 is notable for having a solid ceiling with a hole through which pieces spawn. In Endless mode pieces spawn in the first row below the ceiling, and can still interact with the ceiling if they are rotated before falling another row.

GGG....GGG
....LLL...
....L....
..........
..........
..........
..........

L can rotate

GGG.LL.GGG
.....L....
.....L....
..........
..........
..........
..........

L can move right

GGG..LLGGG
......L...
......L...
..........
..........
..........
..........
GGG...LXGG
.......L..
.......L..
..........
..........
..........
..........

Blocked by ceiling