Difference between revisions of "Piece"

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*>Tepples
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== Hinged polyominoes ==
 
== Hinged polyominoes ==
A '''hinged polyomino''' is similar to a polyomino but also allows connections at a point. In games that use hinged polyominoes, the pieces may break apart when they land, and they may or may not be controllable after they break.
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{| align="right"
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|{{pfstart}}
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{{pfrow| | |Z|J|J| | | | | }}
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{{pfrow| | | | | |O| | | | }}
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{{pfrow| | |Z|J| | | | |O| }}
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{{pfrow| |O| | | | |Z|Z| | }}
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{{pfrow| |O| | | | | | |J| }}
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{{pfend}}
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|-
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| Hinged tetrominoes<br>in ''Tetris 2''
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|}
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A '''hinged polyomino''' 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.
  
 
* 4 blocks: [[Hinged tetromino]] (featured in ''[[Tetris 2]]'').
 
* 4 blocks: [[Hinged tetromino]] (featured in ''[[Tetris 2]]'').

Revision as of 15:50, 6 August 2006

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.
  • A one-sided polyomino is one that may be translated or rotated.
  • 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".

Hinged polyominoes

Tet.pngTet.pngZJJTet.pngTet.pngTet.pngTet.pngTet.png
Tet.pngTet.pngTet.pngTet.pngTet.pngOTet.pngTet.pngTet.pngTet.png
Tet.pngTet.pngZJTet.pngTet.pngTet.pngTet.pngOTet.png
Tet.pngOTet.pngTet.pngTet.pngTet.pngZZTet.pngTet.png
Tet.pngOTet.pngTet.pngTet.pngTet.pngTet.pngTet.pngJTet.png
Hinged tetrominoes
in Tetris 2

A hinged polyomino 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.

External links