tetris rotation

Posted by Samuel on Stack Overflow See other posts from Stack Overflow or by Samuel
Published on 2010-04-20T17:27:35Z Indexed on 2010/04/21 1:43 UTC
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tetris

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rotation

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modula-2

Hey,

For university we're supposed to write a game (the language is modula2 little chance you know it). Each tetromino is defined through a central piece and 3 relative pieces, Now when it comes to rotation i just rotate the relative blocks (linear algebra).

What i am asking myself is how to handle the rotations a user does when the piece has already "landed" because than the user has a little time left to move his pieve quickly into the desired position but in tetris versions all over the web you can "rotate over" other pieces, but i dont seem to get it with my rotation.

Over what piece do i need to rotate? are there guidelines? Thanks

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