Shirase O kicks fixed

tetris/rulesets/shirase.lua

@@ -60,6 +60,29 @@ Shirase.block_offsets = {
     }
 }
 
+function Shirase:attemptWallkicks(piece, new_piece, rot_dir, grid)
+
+	local kicks
+	if piece.shape == "I" then
+		kicks = SRS.wallkicks_line[piece.rotation][new_piece.rotation]
+	else
+		kicks = SRS.wallkicks_3x3[piece.rotation][new_piece.rotation]
+	end
+
+	assert(piece.rotation ~= new_piece.rotation)
+
+	for idx, offset in pairs(kicks) do
+		kicked_piece = new_piece:withOffset(offset)
+		if grid:canPlacePiece(kicked_piece) then
+			piece:setRelativeRotation(rot_dir)
+			piece:setOffset(offset)
+			self:onPieceRotate(piece, grid)
+			return
+		end
+	end
+
+end
+
 function Shirase:onPieceDrop(piece) piece.lock_delay = 0 end
 function Shirase:onPieceMove(piece) piece.lock_delay = 0 end
 function Shirase:onPieceRotate(piece) piece.lock_delay = 0 end