Difference between revisions of "Piece"

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A '''polyomino''' is a piece made of two or more square blocks, where all blocks are connected through full coincident edges (as if squares on graph paper).
 
A '''polyomino''' is a piece made of two or more square blocks, where all blocks are connected through full coincident edges (as if squares on graph paper).
  
*A ''free polyomino'' is one that may be translated (moved about), rotated, or reflected.
+
*A ''free polyomino'' is one that may be translated (moved about), rotated, or reflected. These are used in ''[[Pokémon Tetris]]''.
*A ''one-sided polyomino'' is one that may be translated or rotated.
+
*A ''one-sided polyomino'' is one that may be translated or rotated. These are the ones used in ''Tetris''.
 
*A ''fixed polyomino'' can only be translated.
 
*A ''fixed polyomino'' can only be translated.
  
 
Polyominoes come in several sizes:
 
Polyominoes come in several sizes:
* 2 blocks make a [[domino]]: featured in ''[[Dr. Mario]]'' and ''[[Puyo Pop]]''; seen in ''[[Tetris Blast]]''.
+
* 1 block makes a [[monomino]]: seen in ''[[Super Tetris 3]]'' (Magicaliss mode)
 +
* 2 blocks make a [[domino]]: featured in ''[[Dr. Mario]]'' and ''[[Puyo Pop]]''; seen in ''[[Tetris Blast]]'', ''[[Super Tetris 3]]'' (Magicaliss mode).
 
* 3 blocks make a [[tromino]] (or trimino): featured in ''[[Columns]]'' (fixed I only) and ''[[Pac-Attack]]'' (L only); seen in ''[[Tetris Blast]]'' (I, L) and ''Puyo Pop Fever'' (L).
 
* 3 blocks make a [[tromino]] (or trimino): featured in ''[[Columns]]'' (fixed I only) and ''[[Pac-Attack]]'' (L only); seen in ''[[Tetris Blast]]'' (I, L) and ''Puyo Pop Fever'' (L).
 
* 4 blocks make a [[tetromino]] (or tetramino or tetrimino): featured in ''Tetris'' and its clones. ''[[Lumines]]'' uses only O tetrominoes.
 
* 4 blocks make a [[tetromino]] (or tetramino or tetrimino): featured in ''Tetris'' and its clones. ''[[Lumines]]'' uses only O tetrominoes.
* 5 blocks make a [[pentomino]]: featured in ''[[Daedalian Opus]]''; seen in ''[[Tetris 2 and Bombliss|Tetris 2  Bombliss]]''.
+
* 5 blocks make a [[pentomino]]: featured in ''[[Daedalian Opus]]''; seen in ''[[Tetris 2 + Bombliss]]'', ''[[Tetris 64]]'', ''[[Puyo Puyo Tetris]]'' etc.
  
 
Polyominoes are often named by a Latin letter that resembles the shape of the polyomino. For instance, an "I" has all its blocks in a straight line, and a "T" consists of an "I" tromino with one or more blocks in a straight line connected to one side of the center of the "I".
 
Polyominoes are often named by a Latin letter that resembles the shape of the polyomino. For instance, an "I" has all its blocks in a straight line, and a "T" consists of an "I" tromino with one or more blocks in a straight line connected to one side of the center of the "I".
  
== Hinged polyominoes ==
+
== Psueudo-polyominoes ==
 
{| align="right"
 
{| align="right"
 
|<playfield>
 
|<playfield>
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</playfield>
 
</playfield>
 
|-
 
|-
| Hinged tetrominoes<br>in ''Tetris 2''
+
| Pseudo-tetrominoes<br>in ''Tetris 2''
 
|}
 
|}
A '''hinged polyomino''' or '''polyplet'''[http://mathworld.wolfram.com/Polyplet.html] is similar to a polyomino but also allows connections at a point. In games that use hinged polyominoes, a piece may break apart at the diagonal connections when it lands, and the fragments may or may not be controllable afterward.
+
A '''pseudo-polyomino''', also known as a '''hinged polyomino''', '''polyking''' or '''polyplet'''[http://mathworld.wolfram.com/Polyplet.html] is similar to a polyomino but also allows connections at a point. In games that use pseudo-polyominoes, a piece may break apart at the diagonal connections when it lands, and the fragments may or may not be controllable afterward.
  
* 4 blocks: [[Hinged tetromino]] (featured in ''[[Tetris 2]]'').
+
* 3 blocks: [[Pseudo-tromino]] (featured in ''[[EGAint]]'').
 +
* 4 blocks: [[Psuedo-tetromino]] (featured in ''[[Tetris 2]]'').
 +
 
 +
== Quasi-polyomino ==
 +
A '''quasi-polyomino''' is any set of blocks regardless of whether they are connected or not. These are featured in ''[[Kowaris]]''.
  
 
== Other polyforms ==
 
== Other polyforms ==
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*[http://en.wikipedia.org/wiki/Polyomino Wikipedia:Polyomino]
 
*[http://en.wikipedia.org/wiki/Polyomino Wikipedia:Polyomino]
 
*[http://en.wikipedia.org/wiki/Tetromino Wikipedia:Tetromino]
 
*[http://en.wikipedia.org/wiki/Tetromino Wikipedia:Tetromino]
 +
*[http://en.wikipedia.org/wiki/Pseudo-polyomino Wikipedia:Pseudo-polyomino]
  
 
[[Category:Interface]]
 
[[Category:Interface]]

Revision as of 09:20, 27 September 2018

A piece in Tetris and similar games is a geometric shape consisting of a set of blocks that is moved as a unit. A block is the part of a piece that fills one unit of the playfield. In some games, all blocks that make up a piece are colored the same; in others, especially falling piece games other than Tetris and its clones, they are colored differently.

Polyominoes

A polyomino is a piece made of two or more square blocks, where all blocks are connected through full coincident edges (as if squares on graph paper).

  • A free polyomino is one that may be translated (moved about), rotated, or reflected. These are used in Pokémon Tetris.
  • A one-sided polyomino is one that may be translated or rotated. These are the ones used in Tetris.
  • A fixed polyomino can only be translated.

Polyominoes come in several sizes:

Polyominoes are often named by a Latin letter that resembles the shape of the polyomino. For instance, an "I" has all its blocks in a straight line, and a "T" consists of an "I" tromino with one or more blocks in a straight line connected to one side of the center of the "I".

Psueudo-polyominoes

..........
..ZJJ.....
.....O....
..........
..ZJ....O.
.O....ZZ..
.O......J.
..........
Pseudo-tetrominoes
in Tetris 2

A pseudo-polyomino, also known as a hinged polyomino, polyking or polyplet[1] is similar to a polyomino but also allows connections at a point. In games that use pseudo-polyominoes, a piece may break apart at the diagonal connections when it lands, and the fragments may or may not be controllable afterward.

Quasi-polyomino

A quasi-polyomino is any set of blocks regardless of whether they are connected or not. These are featured in Kowaris.

Other polyforms

Hextris and Bikaka are variants of Tetris that use 4-cell polyhexes, or pieces created from regular hexagons.[2] Bubble Bath Babes uses polyhexes that may be reflected around the X or Y axis but not rotated.

See also

External links