I-Spins in SRS: Difference between revisions

Latest revision as of 18:42, 1 November 2023

Different rotation systems that approximate SRS apply different wall kicks and floor kicks when the player twists the I tetromino.

Official SRS

Tetris Worlds, and Tetris DS are based on the Tetris Guideline, including SRS. They have the following behavior:

Rotated left

Soft dropped

Rotated right

But the wall kicks are not symmetric, as Tetris Worlds, Tetris Deluxe, and Tetris DS prefer to kick up rather than down when rotating left:

Rotated right

Soft dropped

Rotated left

However, an extra block impedes the choice of the upward kick position:

Rotated right

Soft dropped

Rotated left

The following can be performed instead.

Rotated left

Moved right

Soft dropped

Rotated left

Tetris Advance

Minna no Soft Series: Tetris Advance, while implementing SRS, included several bugs including the lack of some wall kicks.

Rotated left

Soft dropped

Can't rotate right

Lockjaw

In Lockjaw, both left and right prefer to kick down rather than up when rotating:

Rotated right

Soft dropped

Rotated left

Arika SRS

Arika SRS (used in TGM3 and TGMA) always prefers to kick up. This is very bad for some setups.

Rotated left

Soft dropped

Rotated right

From Hard Drop Tetris Wiki

Latest revision as of 18:42, 1 November 2023

Contents

Official SRS

Tetris Advance

Lockjaw

Arika SRS

@@ Line 1: / Line 1: @@
-Different [[game]]s that use [[SRS]] apply different [[wall kick]]s and [[floor kick]]s when the player [[twist]]s the I [[tetromino]]. TGM3, TGMA and Tetris Perfect's SRS are partially symmetric.
+Different [[rotation system]]s that approximate [[SRS]] apply different [[wall kick]]s and [[floor kick]]s when the player [[twist]]s the I [[tetromino]].
 == Official SRS ==
-[[Tetris Worlds]], [[Tetris DS]] and [[Tetris The Grand Master Ace]] are based on the [[Tetris Guideline]], including SRS. They have the following behavior:
+[[Tetris Worlds]], and [[Tetris DS]] are based on the [[Tetris Guideline]], including SRS. They have the following behavior:
 {|
 |valign="top"|{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | |i|i|i|i| | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | |t| | |s|s| | }}
+{{pfrow| | | |g| | |s|s| | }}
-{{pfrow| | |t|t| |s|s|j|j|j}}
+{{pfrow| | | |g| |s|s|j|j|j}}
-{{pfrow| | | |t| | | | | |j}}
+{{pfrow| | | |g| | | | | |j}}
 {{pfend}}
 |
@@ Line 21: / Line 21: @@
 {{pfrow| | | | |i| | | | | }}
 {{pfrow| | | | |i| | | | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | |t| | |s|s| | }}
+{{pfrow| | | |g| | |s|s| | }}
-{{pfrow| | |t|t| |s|s|j|j|j}}
+{{pfrow| | | |g| |s|s|j|j|j}}
-{{pfrow| | | |t| | | | | |j}}
+{{pfrow| | | |g| | | | | |j}}
 {{pfend}}
 Rotated left
 |
 {{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | | |i| | | | | }}
-{{pfrow| | | |t|i| |s|s| | }}
+{{pfrow| | | |g|i| |s|s| | }}
-{{pfrow| | |t|t|i|s|s|j|j|j}}
+{{pfrow| | | |g|i|s|s|j|j|j}}
-{{pfrow| | | |t|i| | | | |j}}
+{{pfrow| | | |g|i| | | | |j}}
 {{pfend}}
 Soft dropped
 |
 {{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | |t| | |s|s| | }}
+{{pfrow| | | |g| | |s|s| | }}
-{{pfrow| | |t|t| |s|s|j|j|j}}
+{{pfrow| | | |g| |s|s|j|j|j}}
-{{pfrow| | | |t|i|i|i|i| |j}}
+{{pfrow| | | |g|i|i|i|i| |j}}
 {{pfend}}
 Rotated right
 |}
-But the wall kicks are not symmetric, as Tetris Worlds, Tetris Deluxe, Tetris DS and Tetris The Grand Master Ace prefer to kick up rather than down when rotating left...
+But the wall kicks are not symmetric, as Tetris Worlds, Tetris Deluxe, and Tetris DS prefer to kick up rather than down when rotating left:
 {|
 |valign="top"|{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | |i|i|i|i| | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | |z|z| | |t| | | }}
 {{pfrow|l|l|l|z|z| |t|t| | }}
@@ Line 74: / Line 74: @@
 {{pfrow| | | | | |i| | | | }}
 {{pfrow| | | | | |i| | | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | |z|z| | |t| | | }}
 {{pfrow|l|l|l|z|z| |t|t| | }}
@@ Line 82: / Line 82: @@
 Rotated right
 |{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | | | |i| | | | }}
 {{pfrow| | |z|z| |i|t| | | }}
@@ Line 94: / Line 94: @@
 Soft dropped
 |{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | | | |i|i|i|i| }}
 {{pfrow| | |z|z| | |t| | | }}
@@ Line 107: / Line 107: @@
 |}
-...unless there is another block to force a kick down:
+However, an extra block impedes the choice of the upward kick position:
 {|
 |valign="top"|{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | |i|i|i|i| | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | |sZ| }}
+{{pfrow| | | | | | | | |g| }}
-{{pfrow| | |z|z| | |t| | | }}
+{{pfrow| | |z|z| | |g| | | }}
-{{pfrow|l|l|l|z|z| |t|t| | }}
+{{pfrow|l|l|l|z|z| |g| | | }}
-{{pfrow|l| | | | | |t| | | }}
+{{pfrow|l| | | | | |g| | | }}
 {{pfend}}
 |{{pfstart}}
@@ Line 125: / Line 125: @@
 {{pfrow| | | | | |i| | | | }}
 {{pfrow| | | | | |i| | | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | |sZ| }}
+{{pfrow| | | | | | | | |g| }}
-{{pfrow| | |z|z| | |t| | | }}
+{{pfrow| | |z|z| | |g| | | }}
-{{pfrow|l|l|l|z|z| |t|t| | }}
+{{pfrow|l|l|l|z|z| |g| | | }}
-{{pfrow|l| | | | | |t| | | }}
+{{pfrow|l| | | | | |g| | | }}
 {{pfend}}
 Rotated right
 |{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | |i| | |sZ| }}
+{{pfrow| | | | | |i| | |g| }}
-{{pfrow| | |z|z| |i|t| | | }}
+{{pfrow| | |z|z| |i|g| | | }}
-{{pfrow|l|l|l|z|z|i|t|t| | }}
+{{pfrow|l|l|l|z|z|i|g| | | }}
-{{pfrow|l| | | | |i|t| | | }}
+{{pfrow|l| | | | |i|g| | | }}
 {{pfend}}
 Soft dropped
 |{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | |sZ| }}
+{{pfrow| | | | | | | | |g| }}
-{{pfrow| | |z|z| | |t| | | }}
+{{pfrow| | |z|z| | |g| | | }}
-{{pfrow|l|l|l|z|z| |t|t| | }}
+{{pfrow|l|l|l|z|z| |g| | | }}
-{{pfrow|l| |i|i|i|i|t| | | }}
+{{pfrow|l| |i|i|i|i|g| | | }}
 {{pfend}}
 Rotated left
 |}
-The following can be performed instead, at least in tetris DS.
+The following can be performed instead.
 {|
 |valign="top"|{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | |i|i|i|i| | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | |z|z| | |t| | | }}
 {{pfrow|l|l|l|z|z| |t|t| | }}
@@ Line 177: / Line 177: @@
 {{pfrow| | | | |i| | | | | }}
 {{pfrow| | | | |i| | | | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | |z|z| | |t| | | }}
 {{pfrow|l|l|l|z|z| |t|t| | }}
@@ Line 189: / Line 189: @@
 {{pfrow| | | | | |i| | | | }}
 {{pfrow| | | | | |i| | | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | |z|z| | |t| | | }}
 {{pfrow|l|l|l|z|z| |t|t| | }}
@@ Line 197: / Line 197: @@
 Moved right
 |{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | | | |i| | | | }}
 {{pfrow| | |z|z| |i|t| | | }}
@@ Line 209: / Line 209: @@
 Soft dropped
 |{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | |z|z| | |t| | | }}
 {{pfrow|l|l|l|z|z| |t|t| | }}
@@ Line 227: / Line 227: @@
 {|
 |valign="top"|{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | |i|i|i|i| | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | |t| | |s|s| | }}
+{{pfrow| | | |g| | |s|s| | }}
-{{pfrow| | |t|t| |s|s|j|j|j}}
+{{pfrow| | | |g| |s|s|j|j|j}}
-{{pfrow| | | |t| | | | | |j}}
+{{pfrow| | | |g| | | | | |j}}
 {{pfend}}
 |
@@ Line 243: / Line 243: @@
 {{pfrow| | | | |i| | | | | }}
 {{pfrow| | | | |i| | | | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | |t| | |s|s| | }}
+{{pfrow| | | |g| | |s|s| | }}
-{{pfrow| | |t|t| |s|s|j|j|j}}
+{{pfrow| | | |g| |s|s|j|j|j}}
-{{pfrow| | | |t| | | | | |j}}
+{{pfrow| | | |g| | | | | |j}}
 {{pfend}}
 Rotated left
 |
 {{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | | |i| | | | | }}
-{{pfrow| | | |t|i| |s|s| | }}
+{{pfrow| | | |g|i| |s|s| | }}
-{{pfrow| | |t|t|i|s|s|j|j|j}}
+{{pfrow| | | |g|i|s|s|j|j|j}}
-{{pfrow| | | |t|i| | | | |j}}
+{{pfrow| | | |g|i| | | | |j}}
 {{pfend}}
-Soft dropped, can't rotate right
+Soft dropped
+|
+{{pfstart}}
+{{pfrowblank}}
+{{pfrowblank}}
+{{pfrowblank}}
+{{pfrowblank}}
+{{pfrowblank}}
+{{pfrow| | | | |i| | | | | }}
+{{pfrow| | | |g|i| |s|s| | }}
+{{pfrow| | | |g|i|s|s|j|j|j}}
+{{pfrow| | | |g|i| | | | |j}}
+{{pfend}}
+Can't rotate right
 |}
@@ Line 269: / Line 282: @@
 {|
 |valign="top"|{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | |i|i|i|i| | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | |z|z| | |t| | | }}
 {{pfrow|l|l|l|z|z| |t|t| | }}
@@ Line 284: / Line 297: @@
 {{pfrow| | | | | |i| | | | }}
 {{pfrow| | | | | |i| | | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | |z|z| | |t| | | }}
 {{pfrow|l|l|l|z|z| |t|t| | }}
@@ Line 292: / Line 305: @@
 Rotated right
 |{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | | | | |i| | | | }}
 {{pfrow| | |z|z| |i|t| | | }}
@@ Line 304: / Line 317: @@
 Soft dropped
 |{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
 {{pfrow| | |z|z| | |t| | | }}
 {{pfrow|l|l|l|z|z| |t|t| | }}
@@ Line 317: / Line 330: @@
 |}
-==Tetris Best/Perfect/Return==
+==Arika SRS==
-[[Tetris Best]], [[Tetris Perfect]] and its [[Tetris Perfect mods|mods]] use a custom symmetrical rotation system that always prefers to kick down than up, so the problem is solved. Also, the additional kicks not in SRS make it possible to make I-spin Tetris:
-{|
+Arika SRS (used in TGM3 and TGMA) always prefers to kick up. This is very bad for some setups.
+{|
 |valign="top"|{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrow| | | |i|i|i|i| | | }}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow|i|i1|i2|i|g|g| | | | }}
+{{pfrowblank}}
-{{pfrow|g|g3|g4|g| |g|g|g|g|g}}
+{{pfrowblank}}
-{{pfrow|g|g|g|g| |g|g|g|g|g}}
+{{pfrow| | | |g| | |s|s| | }}
-{{pfrow|g|g|g|g| |g|g|g|g|g}}
+{{pfrow| | | |g| |s|s|j|j|j}}
-{{pfrow|g|g|g|g| |g|g|g|g|g}}
+{{pfrow| | | |g| | | | | |j}}
+{{pfend}}
+|
+{{pfstart}}
+{{pfrow| | | | |i| | | | | }}
+{{pfrow| | | | |i| | | | | }}
+{{pfrow| | | | |i| | | | | }}
+{{pfrow| | | | |i| | | | | }}
+{{pfrowblank}}
+{{pfrowblank}}
+{{pfrow| | | |g| | |s|s| | }}
+{{pfrow| | | |g| |s|s|j|j|j}}
+{{pfrow| | | |g| | | | | |j}}
+{{pfend}}
+Rotated left
+|
+{{pfstart}}
+{{pfrowblank}}
+{{pfrowblank}}
+{{pfrowblank}}
+{{pfrowblank}}
+{{pfrowblank}}
+{{pfrow| | | | |i| | | | | }}
+{{pfrow| | | |g|i| |s|s| | }}
+{{pfrow| | | |g|i|s|s|j|j|j}}
+{{pfrow| | | |g|i| | | | |j}}
 {{pfend}}
-|{{pfstart}}
+Soft dropped
-{{pfrow| | | | | | | | | | }}
+|
-{{pfrow| | | | | | | | | | }}
+{{pfstart}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | | | | | | | }}
+{{pfrowblank}}
-{{pfrow| | | | |g|g| | | | }}
+{{pfrowblank}}
-{{pfrow|g|g|g|g|i|g|g|g|g|g}}
+{{pfrowblank}}
-{{pfrow|g|g|g|g1|i2|g|g|g|g|g}}
+{{pfrowblank}}
-{{pfrow|g|g|g|g3|i4|g|g|g|g|g}}
+{{pfrow| |i|i|i|i| | | | | }}
-{{pfrow|g|g|g|g|i|g|g|g|g|g}}
+{{pfrow| | | |g| | |s|s| | }}
+{{pfrow| | | |g| |s|s|j|j|j}}
+{{pfrow| | | |g| | | | | |j}}
 {{pfend}}
 Rotated right
 |}
-In [[Tetris Best]], this is the extreme kick, so this setup is needed. In [[Tetris Perfect]] and [[Tetris Perfect mods|mods]], it may be displaced up+right due to 3-kicks.
 [[Category:Mobility]]