Gameplay of Tetris: Difference between revisions

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The action of ''Tetris'' happens within a machine called a [[tetrion]].
The action of ''Tetris'' happens within a machine called a [[tetrion]].
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The largest part of the tetrion consists of the [[playfield]] measuring ten spaces across by twenty spaces down.
The largest part of the tetrion consists of the [[playfield]] measuring ten spaces across by twenty spaces down.

Revision as of 08:06, 4 January 2008

The action of Tetris happens within a machine called a tetrion. 工控机 茅台酒 二锅头 防伪标签 热转印机 水晶像 奖杯 干洗 数码快印 硒鼓加粉 塑料颗粒机 防伪 防伪技术 高新技术企业认定 北京洗衣公司 服务器机柜 空气净化工程 国际速递 国际快递公司 国际快递 梯具 节能节电 冬令营 石材翻新 电器维修 北京公司注册 制冰机 电脑回收 代开发票 不干胶 机打发票 电缆桥架 电缆桥架 北京货架 航空货运 会议服务 小升初 梅兰日兰UPS 口语 Dell服务器 再生塑料颗粒机 灯光音响 二手电脑回收 热水器维修 环氧地坪 IBM服务器 工商注册 IBM服务器 北京航空货运 北京写字楼 动画制作


The largest part of the tetrion consists of the playfield measuring ten spaces across by twenty spaces down. It has other parts explained below.

Randomly selected tetrominoes, or shapes consisting of four square blocks, fall from the top of the playfield one at a time. Each tetromino enters the playfield with a given orientation and color depending on its shape. Part of the tetrion, called the piece preview, shows the next pieces that will enter the playfield.

The player can rotate the falling tetromino ninety degrees at a time within the plane of the playfield by pressing the counterclockwise or clockwise rotation buttons, provided the piece has room to rotate. Some versions of the game nudge the tetromino away from the wall or other blocks in order to make room.

The player can shift the falling tetromino sideways one space at a time by pressing the left or right arrow or holding it for quicker movement, provided the piece has room to move. Pieces cannot shift through walls or other blocks.

At the top left, or in some cases the bottom right, of the tetrion is an area called the hold box where a player can store a tetromino for later use. At any time while a tetromino falls, the player can move it to the hold box, and any tetromino held earlier now moves to the top of the playfield. After moving a tetromino to the hold box, the player must then lock the resulting tetromino before holding again (see below).

Each tetromino moves downward slowly by itself. Generally a player can use some method to "drop" the tetromino, or make it move downward faster. Once the tetromino lands on the floor or other blocks, the piece will delay shortly before locking in which time the player can move it. After locking, a player can no longer move the tetromino.

When a tetromino locks and by doing so fills all empty spaces within one or more rows of the playfield, those full rows will clear. Remaining blocks above will move down by as many rows removed.

If the playfield has not filled up with blocks, the next piece enters.

See also