|
|
| (17 intermediate revisions by 8 users not shown) |
| Line 1: |
Line 1: |
| The '''DTET Rotation System''' is the [[rotation system]] used in the fan game [[DTET]]. Although sometimes referred to by the abbreviation D.R.S., both the abbreviation and expanded form are informal names. The system was not given a specific name by Mihys, the author of the game. Pieces spawn in the center, (left of center for the odd width pieces) with their topmost solid block in row 20.
| | #REDIRECT [[DTET]] |
| | |
| ==Basic Rotation==
| |
| DTET's basic rotations are strongly reminiscent of [[Sega rotation]], but with two differences:
| |
| * S, Z and I tetrominoes now have 4 rotation states instead of 2. However, the two horizontal states are identical in orientation.
| |
| * The horizontal orientation of the I tetromino is shifted 1 cell down.
| |
| [[Image:Dtet-pieces.png|left|frame|DTET's basic rotations]]
| |
| <br clear="all">
| |
| | |
| ==Wall Kicks==
| |
| The [[wall kick|wall kicks]] in DTET are an extension of the system pioneered by Arika in [[TGM rotation#Wall kicks|TGM rotation]]. In addition to testing for wall kicks 1 cell to the left and right, DTET will also continue to test for wall kicks 1 cell down, followed by 1 cell diagonally down-left and down-right. DTET's wall kicks are sometimes described as "symmetric", the reason being that kicks left and down-left take precedence when rotating counter-clockwise, and kicks right and down-right take precedence when rotating clockwise:
| |
| | |
| {| border="1" style="text-align:center"
| |
| |+Wall Kick Test Order
| |
| !width="30" |
| |
| !width="200"|Counter-Clockwise
| |
| !width="200"|Clockwise
| |
| |-
| |
| | 1 || one space left || one space right
| |
| |-
| |
| | 2 || one space right || one space left
| |
| |-
| |
| | 3 || one space down || one space down
| |
| |-
| |
| | 4 || one space down-left || one space down-right
| |
| |-
| |
| | 5 || one space down-right || one space down-left
| |
| |}
| |
| | |
| | |
| ==Double Rotation==
| |
| Although DTET only features two rotate buttons with no duplicate, it is still possible for the player to produce double rotations, without having to double-tap with a single finger. Two methods can be used:
| |
| *Press and hold one rotation button, then press the second whilst the first is still held. This produces two successive 90° rotations, the second rotation in the same sense as the first (but with mirrored wall kick test order, see below).
| |
| *Press both rotation buttons simultaneously. This produces an instantaneous 180° counter-clockwise rotation, with no intermediate state.
| |
| In cases where the first method is attempted, but the first button press cannot effect a rotation even with wallkicks, then when the second button is pressed (whilst still holding the first), DTET will regard the presses as simultaneous and attempt the 180° counter-clockwise rotation described in method two. Another subtle use of the first method is not to double rotate, but to mirror the wall kick test order: for example, pressing and holding button "A" will produce a counter-clockwise rotation with counter-clockwise wall kicks, pressing button "B" whilst "A" is still held will produce another counter-clockwise rotation, but with the wall kick test order of a clockwise rotation.
| |
| [[Category:Rotation Systems]]
| |