SG!!!!

- History 4-rolls, history 6-rolls and history 6-rolls 35-bag no longer deal S, Z or O as their first piece
- Added a 7-bag randomiser with the same behaviour (bag7noSZOstart)
- Tweaked the "35-bag" part of the history 6-rolls 35-bag randomiser to work closer to what it's supposed to be
- Switched Marathon AX4's randomiser from history 6-rolls to 7-bag no SZO start

README.md

@@ -3,6 +3,14 @@ Cambridge
 
 Welcome to Cambridge, the next open-source falling-block game engine!
 
+This fork is written and maintained exclusively by [SashLilac](https://github.com/SashLilac) and [Oshisaure](https://github.com/oshisaure)!
+
+Credits
+-------
+
+- [Lilla Oshisaure](https://www.youtube.com/user/LeSpyroshisaure) for their amazing contributions to my life in general!
+- [The Tetra Legends Discord](http://discord.com/invite/7hMx5r2) for supporting me and playtesting!
+- [joezeng](https://github.com/joezeng) for the original project.
 
 Installation instructions
 -------------------------
@@ -15,7 +23,7 @@ Unzip the exe file and run it directly. All assets are currently bundled inside
 
 ### macOS
 
-For the time being, the file `cambridge.love` only works on the command line. Install `love` with [https://brew.sh/](Homebrew), and run:
+For the time being, the file `cambridge.love` only works on the command line. Install `love` with [Homebrew](https://brew.sh), and run:
 
     $ love cambridge.love
 
@@ -35,7 +43,7 @@ If you haven't already, install `love` with your favourite package manager (Home
 
 Clone the repository in git:
 
-    git clone https://github.com/joezeng/cambridge
+    git clone https://github.com/SashLilac/cambridge
 
 Then, navigate to the root directory that you just cloned, and type:
 

funcs.lua

@@ -1,4 +1,5 @@
 function copy(t)
+	-- returns deep copy of t (as opposed to the shallow copy you get from var = t)
 	if type(t) ~= "table" then return t end
     local meta = getmetatable(t)
     local target = {}
@@ -7,7 +8,8 @@ function copy(t)
     return target
 end
 
-function st(tbl)
+function strTrueValues(tbl)
+	-- returns a concatenation of all the keys in tbl with value true, separated with spaces
 	str = ""
 	for k, v in pairs(tbl) do
 		if v == true then
@@ -17,14 +19,16 @@ function st(tbl)
 	return str
 end
 
-function sp(m, s, f)
+function frameTime(min, sec, hth)
-	if m == nil then m = 0 end
+	-- returns a time in frames from a time in minutes-seconds-hundredths format
-	if s == nil then s = 0 end
+	if min == nil then min = 0 end
-	if f == nil then f = 0 end
+	if sec == nil then sec = 0 end
-	return m*3600 + s*60 + math.ceil(f * 0.6)
+	if hth == nil then hth = 0 end
+	return min*3600 + sec*60 + math.ceil(hth * 0.6)
 end
 
 function vAdd(v1, v2)
+	-- returns the sum of vectors v1 and v2
 	return {
 		x = v1.x + v2.x,
 		y = v1.y + v2.y
@@ -32,6 +36,7 @@ function vAdd(v1, v2)
 end
 
 function vNeg(v)
+	-- returns the opposite of vector v
 	return {
 		x = -v.x,
 		y = -v.y
@@ -39,14 +44,18 @@ function vNeg(v)
 end
 
 function formatTime(frames)
+	-- returns a mm:ss:hh (h=hundredths) representation of the time in frames given 
 	if frames < 0 then return formatTime(0) end
-	str = string.format("%02d", math.floor(frames / 3600)) .. ":"
+	local min, sec, hund
-		.. string.format("%02d", math.floor(frames / 60) % 60) .. "."
+	min  = math.floor(frames/3600)
-		.. string.format("%02d", math.floor(frames / 0.6) % 100)
+	sec  = math.floor(frames/60) % 60
+	hund = math.floor(frames/.6) % 100
+	str = string.format("%02d:%02d.%02d", min, sec, hund)
 	return str
 end
 
 function formatBigNum(number)
+	-- returns a string representing a number with commas as thousands separator (e.g. 12,345,678)
 	local s = string.format("%d", number)
 	local pos = string.len(s) % 3
 	if pos == 0 then pos = 3 end

load/graphics.lua

@@ -20,6 +20,7 @@ backgrounds = {
 	love.graphics.newImage("res/backgrounds/1800-railways.png"),
 	love.graphics.newImage("res/backgrounds/1900-world-wide-web.png"),
 	title = love.graphics.newImage("res/backgrounds/title_v0.1.png"),
+    input_config = love.graphics.newImage("res/backgrounds/options-gears.png")
 }
 
 blocks = {

scene.lua

@@ -7,6 +7,7 @@ function Scene:update() end
 function Scene:render() end
 function Scene:onKeyPress() end
 
+ExitScene = require "scene.exit"
 GameScene = require "scene.game"
 ModeSelectScene = require "scene.mode_select"
 InputConfigScene = require "scene.input_config"

scene/exit.lua

@@ -0,0 +1,23 @@
+local ExitScene = Scene:extend()
+require 'load.save'
+
+ExitScene.title = "Exit Game"
+
+function ExitScene:new()
+end
+
+function ExitScene:update()
+    love.event.quit()
+end
+
+function ExitScene:render()
+end
+
+function ExitScene:changeOption(rel)
+end
+
+function ExitScene:onKeyPress(e)
+end
+
+return ExitScene
+

scene/game.lua

@@ -57,11 +57,21 @@ end
 
 function GameScene:onKeyPress(e)
 	if (self.game.completed) and
-		e.scancode == "return" and e.isRepeat == false then
+		(e.scancode == "return" or e.scancode == "escape") and e.isRepeat == false then
 		highscore_entry = self.game:getHighscoreData()
 		highscore_hash = self.game.hash .. "-" .. self.ruleset.hash
 		submitHighscore(highscore_hash, highscore_entry)
 		scene = ModeSelectScene()
+    elseif (e.scancode == config.input.retry) then
+        -- fuck this, this is hacky but the way this codebase is setup prevents anything else
+        -- it seems like all the values that get touched in the child gamemode class
+        -- stop being linked to the values of the GameMode superclass because of how `mt.__index` works
+        -- not even sure this is the actual problem, but I don't want to have to rebuild everything about 
+        -- the core organisation of everything. this hacky way will have to do until someone figures out something.
+        love.keypressed("escape", "escape", false)
+        love.keypressed("return", "return", false)
+    elseif e.scancode == "escape" then
+        scene = ModeSelectScene()
 	end
 end
 

scene/input_config.lua

@@ -15,6 +15,7 @@ local configurable_inputs = {
     "rotate_right2",
     "rotate_180",
     "hold",
+    "retry",
 }
 
 function ConfigScene:new()
@@ -27,6 +28,13 @@ function ConfigScene:update()
 end
 
 function ConfigScene:render()
+	love.graphics.setColor(1, 1, 1, 1)
+	love.graphics.draw(
+		backgrounds["input_config"],
+		0, 0, 0,
+		0.5, 0.5
+	)
+    
 	love.graphics.setFont(font_3x5_2)
 	for i, input in pairs(configurable_inputs) do
 		if config.input[input] then

scene/mode_select.lua

@@ -8,10 +8,10 @@ current_ruleset = 1
 game_modes = {
 	require 'tetris.modes.marathon_2020',
 	require 'tetris.modes.survival_2020',
-	require 'tetris.modes.strategy',
+	--require 'tetris.modes.strategy',
-	require 'tetris.modes.interval_training',
+	--require 'tetris.modes.interval_training',
-	require 'tetris.modes.pacer_test',
+	--require 'tetris.modes.pacer_test',
-	require 'tetris.modes.demon_mode',
+	--require 'tetris.modes.demon_mode',
 	require 'tetris.modes.phantom_mania',
 	require 'tetris.modes.phantom_mania2',
 	require 'tetris.modes.phantom_mania_n',
@@ -24,12 +24,17 @@ game_modes = {
 	require 'tetris.modes.survival_a1',
 	require 'tetris.modes.survival_a2',
 	require 'tetris.modes.survival_a3',
+	require 'tetris.modes.big_a2',
+	require 'tetris.modes.konoha',
 }
 
 rulesets = {
 	require 'tetris.rulesets.cambridge',
 	require 'tetris.rulesets.arika',
 	require 'tetris.rulesets.arika_ti',
+	require 'tetris.rulesets.ti_srs',
+	require 'tetris.rulesets.arika_ace',
+	require 'tetris.rulesets.arika_srs',
 	require 'tetris.rulesets.standard_exp',
 	--require 'tetris.rulesets.bonkers',
 	--require 'tetris.rulesets.shirase',
@@ -96,6 +101,8 @@ function ModeSelectScene:onKeyPress(e)
 	elseif (e.scancode == config.input["left"] or e.scancode == "left") or
 		(e.scancode == config.input["right"] or e.scancode == "right") then
 		self:switchSelect()
+    elseif e.scancode == "escape" then
+        scene = TitleScene()
 	end
 end
 

scene/title.lua

@@ -3,6 +3,7 @@ local TitleScene = Scene:extend()
 local main_menu_screens = {
 	ModeSelectScene,
 	InputConfigScene,
+    ExitScene,
 }
 
 function TitleScene:new()
@@ -43,6 +44,8 @@ function TitleScene:onKeyPress(e)
 		self:changeOption(-1)
 	elseif (e.scancode == config.input["down"] or e.scancode == "down") and e.isRepeat == false then
 		self:changeOption(1)
+    elseif e.scancode == "escape" and e.isRepeat == false then
+        love.event.quit()
 	end
 end
 

tetris/components/grid.lua

@@ -3,6 +3,7 @@ local Object = require 'libs.classic'
 local Grid = Object:extend()
 
 local empty = { skin = "", colour = "" }
+local oob = { skin = "", colour = "" }
 
 function Grid:new()
 	self.grid = {}
@@ -26,8 +27,15 @@ function Grid:clear()
 	end
 end
 
+function Grid:getCell(x, y)
+    if x < 1 or x > 10 or y > 24 then return oob
+    elseif y < 1 then return empty
+    else return self.grid[y][x]
+    end
+end
+
 function Grid:isOccupied(x, y)
-	return self.grid[y+1][x+1] ~= empty
+	return self:getCell(x+1, y+1) ~= empty
 end
 
 function Grid:isRowFull(row)
@@ -46,7 +54,7 @@ function Grid:canPlacePiece(piece)
 	for index, offset in pairs(offsets) do
 		local x = piece.position.x + offset.x
 		local y = piece.position.y + offset.y
-		if x >= 10 or x < 0 or y >= 24 or y < 0 or self.grid[y+1][x+1] ~= empty then
+		if self:isOccupied(x, y) then
 			return false
 		end
 	end
@@ -58,12 +66,12 @@ function Grid:canPlaceBigPiece(piece)
 	for index, offset in pairs(offsets) do
 		local x = piece.position.x + offset.x
 		local y = piece.position.y + offset.y
-		if x >= 5 or x < 0 or y >= 12 or y < 0 or
+        if (
-			self.grid[y * 2 + 1][x * 2 + 1] ~= empty or
+           self:isOccupied(x * 2 + 0, y * 2 + 0)
-			self.grid[y * 2 + 1][x * 2 + 2] ~= empty or
+        or self:isOccupied(x * 2 + 1, y * 2 + 0)
-			self.grid[y * 2 + 2][x * 2 + 1] ~= empty or
+        or self:isOccupied(x * 2 + 0, y * 2 + 1)
-			self.grid[y * 2 + 2][x * 2 + 2] ~= empty
+        or self:isOccupied(x * 2 + 1, y * 2 + 1)
-		then
+		) then
 			return false
 		end
 	end
@@ -80,7 +88,7 @@ function Grid:canPlacePieceInVisibleGrid(piece)
 	for index, offset in pairs(offsets) do
 		local x = piece.position.x + offset.x
 		local y = piece.position.y + offset.y
-		if x >= 10 or x < 0 or y >= 24 or y < 4 or self.grid[y+1][x+1] ~= empty then
+		if y < 4 or self:isOccupied(x, y) ~= empty then
 			return false
 		end
 	end
@@ -150,12 +158,14 @@ function Grid:applyPiece(piece)
 	for index, offset in pairs(offsets) do
 		x = piece.position.x + offset.x
 		y = piece.position.y + offset.y
+		if y + 1 > 0 then
 			self.grid[y+1][x+1] = {
 				skin = piece.skin,
 				colour = piece.shape
 			}
 		end
 	end
+end
 
 function Grid:applyBigPiece(piece)
 	offsets = piece:getBlockOffsets()
@@ -164,6 +174,7 @@ function Grid:applyBigPiece(piece)
 		y = piece.position.y + offset.y
 		for a = 1, 2 do
 			for b = 1, 2 do
+                if y*2+a > 0 then
                     self.grid[y*2+a][x*2+b] = {
                         skin = piece.skin,
                         colour = piece.shape
@@ -172,6 +183,50 @@ function Grid:applyBigPiece(piece)
 			end
 		end
 	end
+end
+
+function Grid:checkForBravo(cleared_row_count)
+	for i = 0, 23 - cleared_row_count do
+                for j = 0, 9 do
+                        if self:isOccupied(j, i) then return false end
+                end
+        end
+	return true
+end
+
+function Grid:checkSecretGrade()
+    local sgrade = 0
+    for i=23,5,-1 do
+        local validLine = true
+        local emptyCell = 0
+        if i > 13 then
+            emptyCell = 23-i
+        end
+        if i <= 13 then
+            emptyCell = i-5
+        end
+        for j=0,9 do
+            if (not self:isOccupied(j,i) and j ~= emptyCell) or (j == emptyCell and self:isOccupied(j,i)) then
+                validLine = false
+            end
+        end
+        if not self:isOccupied(emptyCell,i-1) then
+            validLine = false
+        end
+        if(validLine) then
+                    sgrade = sgrade + 1
+        else
+            -- return sgrade
+        end
+    end
+    --[[
+    if(sgrade == 0) then return ""
+    elseif(sgrade < 10) then return 10-sgrade
+    elseif(sgrade < 19) then return "S"..(sgrade-9) end
+    return "GM"
+    --]]
+    return sgrade
+end
 
 function Grid:update()
 	for y = 1, 24 do

tetris/components/piece.lua

@@ -97,7 +97,7 @@ end
 
 function Piece:dropToBottom(grid)
 	local piece_y = self.position.y
-	self:dropSquares(20, grid)
+	self:dropSquares(24, grid)
 	self.gravity = 0
 	if self.position.y > piece_y then
 		-- if it got dropped any, also reset lock delay

tetris/modes/big_a2.lua

@@ -0,0 +1,365 @@
+require 'funcs'
+
+local GameMode = require 'tetris.modes.gamemode'
+local Piece = require 'tetris.components.piece'
+
+local History6RollsRandomizer = require 'tetris.randomizers.history_6rolls'
+
+local MarathonA2Game = GameMode:extend()
+
+MarathonA2Game.name = "Big A2"
+MarathonA2Game.hash = "BigA2"
+MarathonA2Game.tagline = "The points don't matter! Can you reach the invisible roll? Big mode too!"
+
+
+
+
+function MarathonA2Game:new()
+    self.super:new()
+    self.big_mode = true
+	self.roll_frames = 0
+    self.combo = 1
+	self.randomizer = History6RollsRandomizer()
+	self.grade = 0
+	self.grade_points = 0
+	self.grade_point_decay_counter = 0
+	self.section_start_time = 0
+	self.section_times = { [0] = 0 }
+	self.section_tetrises = { [0] = 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+    
+	self.randomizer = History6RollsRandomizer()
+
+    self.lock_drop = false
+	self.enable_hold = false
+	self.next_queue_length = 1
+end
+
+function MarathonA2Game:getARE()
+        if self.level < 700 then return 27
+    elseif self.level < 800 then return 18
+    else return 14 end
+end
+
+function MarathonA2Game:getLineARE()
+        if self.level < 600 then return 27
+    elseif self.level < 700 then return 18
+    elseif self.level < 800 then return 14
+    else return 8 end
+end
+
+function MarathonA2Game:getDasLimit()
+        if self.level < 500 then return 15
+    elseif self.level < 900 then return 9
+    else return 7 end
+end
+
+function MarathonA2Game:getLineClearDelay()
+        if self.level < 500 then return 40
+    elseif self.level < 600 then return 25
+    elseif self.level < 700 then return 16
+    elseif self.level < 800 then return 12
+    else return 6 end
+end
+
+function MarathonA2Game:getLockDelay()
+        if self.level < 900 then return 30
+    else return 17 end
+end
+
+function MarathonA2Game:getGravity()
+        if (self.level < 30)  then return 4/256
+    elseif (self.level < 35)  then return 6/256
+    elseif (self.level < 40)  then return 8/256
+    elseif (self.level < 50)  then return 10/256
+    elseif (self.level < 60)  then return 12/256
+    elseif (self.level < 70)  then return 16/256
+    elseif (self.level < 80)  then return 32/256
+    elseif (self.level < 90)  then return 48/256
+    elseif (self.level < 100) then return 64/256
+    elseif (self.level < 120) then return 80/256
+    elseif (self.level < 140) then return 96/256
+    elseif (self.level < 160) then return 112/256
+    elseif (self.level < 170) then return 128/256
+    elseif (self.level < 200) then return 144/256
+    elseif (self.level < 220) then return 4/256
+    elseif (self.level < 230) then return 32/256
+    elseif (self.level < 233) then return 64/256
+    elseif (self.level < 236) then return 96/256
+    elseif (self.level < 239) then return 128/256
+    elseif (self.level < 243) then return 160/256
+    elseif (self.level < 247) then return 192/256
+    elseif (self.level < 251) then return 224/256
+    elseif (self.level < 300) then return 1
+    elseif (self.level < 330) then return 2
+    elseif (self.level < 360) then return 3
+    elseif (self.level < 400) then return 4
+    elseif (self.level < 420) then return 5
+    elseif (self.level < 450) then return 4
+    elseif (self.level < 500) then return 3
+    else return 20
+    end
+end
+
+function MarathonA2Game:advanceOneFrame()
+	if self.clear then
+		self.roll_frames = self.roll_frames + 1
+		if self.roll_frames > 3694 then
+			self.completed = true
+			if self.grade == 32 then
+				self.grade = 33
+			end
+		end
+	elseif self.ready_frames == 0 then
+		self.frames = self.frames + 1
+	end
+	return true
+end
+
+function MarathonA2Game:onPieceEnter()
+	if (self.level % 100 ~= 99 and self.level ~= 998) and not self.clear and self.frames ~= 0 then
+		self.level = self.level + 1
+	end
+end
+
+function MarathonA2Game:onLineClear(cleared_row_count)
+	cleared_row_count = cleared_row_count / 2
+    self:updateSectionTimes(self.level, self.level + cleared_row_count)
+    self.level = math.min(self.level + cleared_row_count, 999)
+    if self.level == 999 and not self.clear then
+        self.clear = true
+        if self:qualifiesForMRoll() then
+            self.grade = 32
+        end
+        self.grid:clear()
+        self.roll_frames = -150
+    end
+end
+
+function MarathonA2Game:updateScore(level, drop_bonus, cleared_lines)
+    cleared_lines = cleared_lines / 2
+    self:updateGrade(cleared_lines)
+	if cleared_lines > 0 then
+		self.score = self.score + (
+			(math.ceil((level + cleared_lines) / 4) + drop_bonus) *
+			cleared_lines * (cleared_lines * 2 - 1) * (self.combo * 2 - 1)
+		)
+		self.lines = self.lines + cleared_lines
+		self.combo = self.combo + cleared_lines - 1
+	else
+		self.drop_bonus = 0
+		self.combo = 1
+	end
+end
+
+function MarathonA2Game:updateSectionTimes(old_level, new_level)
+	if self.clear then return end
+	if math.floor(old_level / 100) < math.floor(new_level / 100) or
+	new_level >= 999 then
+		-- record new section
+		section_time = self.frames - self.section_start_time
+		self.section_times[math.floor(old_level / 100)] = section_time
+		self.section_start_time = self.frames
+	end
+end
+
+local grade_point_bonuses = {
+	{10, 20, 40, 50},
+	{10, 20, 30, 40},
+	{10, 20, 30, 40},
+	{10, 15, 30, 40},
+	{10, 15, 20, 40},
+	{5, 15, 20, 30},
+	{5, 10, 20, 30},
+	{5, 10, 15, 30},
+	{5, 10, 15, 30},
+	{5, 10, 15, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+	{2, 12, 13, 30},
+}
+
+local grade_point_decays = {
+	125, 80, 80, 50, 45, 45, 45,
+	40, 40, 40, 40, 40, 30, 30, 30,
+	20, 20, 20, 20, 20,
+	15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+	10, 10
+}
+
+local combo_multipliers = {
+	{1.0, 1.0, 1.0, 1.0},
+	{1.2, 1.4, 1.5, 1.0},
+	{1.2, 1.5, 1.8, 1.0},
+	{1.4, 1.6, 2.0, 1.0},
+	{1.4, 1.7, 2.2, 1.0},
+	{1.4, 1.8, 2.3, 1.0},
+	{1.4, 1.9, 2.4, 1.0},
+	{1.5, 2.0, 2.5, 1.0},
+	{1.5, 2.1, 2.6, 1.0},
+	{2.0, 2.5, 3.0, 1.0},
+}
+
+local grade_conversion = {
+	[0] = 0,
+	1, 2, 3, 4, 5, 5, 6, 6, 7, 7,
+	7, 8, 8, 8, 9, 9, 9, 10, 11, 12,
+	12, 12, 13, 13, 14, 14, 15, 15, 16, 16,
+	17, 18, 19
+}
+
+function MarathonA2Game:updateGrade(cleared_lines)
+	if self.clear then return end
+	if cleared_lines == 0 then
+		self.grade_point_decay_counter = self.grade_point_decay_counter + 1
+		if self.grade_point_decay_counter >= grade_point_decays[self.grade + 1] then
+			self.grade_point_decay_counter = 0
+			self.grade_points = math.max(0, self.grade_points - 1)
+		end
+	else
+		self.grade_points = self.grade_points + (
+			math.ceil(
+				grade_point_bonuses[self.grade + 1][cleared_lines] *
+				combo_multipliers[math.min(self.combo, 10)][cleared_lines]
+			) * (1 + math.floor(self.level / 250))
+		)
+		if self.grade_points >= 100 and self.grade < 31 then
+			self.grade_points = 0
+			self.grade = self.grade + 1
+		end
+	end
+end
+
+local tetris_requirements = { [0] = 2, 2, 2, 2, 2, 1, 1, 1, 1, 1 }
+
+function MarathonA2Game:qualifiesForMRoll()
+	if not self.clear then return false end
+	-- tetris requirements
+	for section = 0, 9 do
+		if self.section_tetrises[section] < tetris_requirements[section] then
+			return false
+		end
+	end
+	-- section time requirements
+	local section_average = 0
+	for section = 0, 4 do
+		section_average = section_average + self.section_times[section]
+		if self.section_times[section] > frameTime(1,05) then
+			return false
+		end
+	end
+	-- section time average requirements
+	if self.section_times[5] > section_average / 5 then
+		return false
+	end
+	for section = 6, 9 do
+		if self.section_times[section] > self.section_times[section - 1] + 120 then
+			return false
+		end
+	end
+	if self.grade < 17 or self.frames > frameTime(8,45) then
+		return false
+	end
+	return true
+end
+
+function MarathonA2Game:getLetterGrade()
+	local grade = grade_conversion[self.grade]
+	if grade < 9 then
+		return tostring(9 - grade)
+	elseif grade < 18 then
+		return "S" .. tostring(grade - 8)
+	elseif grade == 18 then
+		return "M"
+	else
+		return "GM"
+	end
+end
+
+MarathonA2Game.rollOpacityFunction = function(age)
+	if age < 240 then return 1
+	elseif age > 300 then return 0
+	else return 1 - (age - 240) / 60 end
+end
+
+MarathonA2Game.mRollOpacityFunction = function(age)
+	if age > 4 then return 0
+	else return 1 - age / 4 end
+end
+
+function MarathonA2Game:drawGrid(ruleset)
+	if self.clear and not (self.completed or self.game_over) then
+		if self:qualifiesForMRoll() then
+			self.grid:drawInvisible(self.mRollOpacityFunction)
+		else
+			self.grid:drawInvisible(self.rollOpacityFunction)
+		end
+	else
+		self.grid:draw()
+		if self.piece ~= nil and self.level < 100 then
+			self:drawGhostPiece(ruleset)
+		end
+	end
+end
+
+function MarathonA2Game:drawScoringInfo()
+	love.graphics.setColor(1, 1, 1, 1)
+
+	love.graphics.setFont(font_3x5_2)
+	love.graphics.print(
+		self.das.direction .. " " ..
+		self.das.frames .. " " ..
+		strTrueValues(self.prev_inputs)
+	)
+	love.graphics.printf("NEXT", 64, 40, 40, "left")
+	love.graphics.printf("GRADE", 240, 120, 40, "left")
+	love.graphics.printf("SCORE", 240, 200, 40, "left")
+	love.graphics.printf("LEVEL", 240, 320, 40, "left")
+
+	love.graphics.setFont(font_3x5_3)
+	love.graphics.printf(self:getLetterGrade(), 240, 140, 90, "left")
+	love.graphics.printf(self.score, 240, 220, 90, "left")
+	love.graphics.printf(self.level, 240, 340, 40, "right")
+	love.graphics.printf(self:getSectionEndLevel(), 240, 370, 40, "right")
+
+	love.graphics.setFont(font_8x11)
+	love.graphics.printf(formatTime(self.frames), 64, 420, 160, "center")
+end
+
+function MarathonA2Game:getHighscoreData()
+	return {
+		grade = grade_conversion[self.grade],
+		score = self.score,
+		level = self.level,
+		frames = self.frames,
+	}
+end
+
+function MarathonA2Game:getSectionEndLevel()
+	if self.level >= 900 then return 999
+	else return math.floor(self.level / 100 + 1) * 100 end
+end
+
+function MarathonA2Game:getBackground()
+	return math.floor(self.level / 100)
+end
+
+return MarathonA2Game

tetris/modes/demon_mode.lua

@@ -159,7 +159,7 @@ function DemonModeGame:updateSectionTimes(old_level, new_level)
 			end
 		elseif old_level < 100 then
 			-- If section time is under cutoff, skip to level 500.
-			if self.frames < sp(1,00) then
+			if self.frames < frameTime(1,00) then
 				self.level = 500
 				self.grade = 5
 				self.section_tries = 0
@@ -226,7 +226,7 @@ function DemonModeGame:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs)
+		strTrueValues(self.prev_inputs)
 	)
 	love.graphics.printf("NEXT", 64, 40, 40, "left")
 	love.graphics.printf("GRADE", 240, 120, 40, "left")

tetris/modes/gamemode.lua

@@ -50,13 +50,6 @@ function GameMode:new()
 	self.secondary_section_times = { [0] = 0 }
 end
 
-function GameMode:initialize()
-	-- after all the variables are initialized, run initialization procedures
-	for i = 1, 30 do
-		table.insert(self.next_queue, self:getNextPiece(ruleset))
-	end
-end
-
 function GameMode:getARR() return 1 end
 function GameMode:getDropSpeed() return 1 end
 function GameMode:getARE() return 25 end
@@ -75,6 +68,7 @@ end
 
 function GameMode:initialize(ruleset)
 	-- generate next queue
+    self:new()
 	for i = 1, self.next_queue_length do
 		table.insert(self.next_queue, self:getNextPiece(ruleset))
 	end
@@ -348,8 +342,8 @@ end
 function GameMode:drawNextQueue(ruleset)
 	function drawPiece(piece, skin, offsets, pos_x, pos_y)
 		for index, offset in pairs(offsets) do
-			local x = ruleset.spawn_positions[piece].x + offset.x
+			local x = offset.x + ruleset.spawn_positions[piece].x
-			local y = ruleset.spawn_positions[piece].y + offset.y
+			local y = offset.y + 4.7
 			love.graphics.draw(blocks[skin][piece], pos_x+x*16, pos_y+y*16)
 		end
 	end
@@ -392,7 +386,7 @@ function GameMode:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs) ..
+		strTrueValues(self.prev_inputs) ..
 		self.drop_bonus
 	)
 

tetris/modes/interval_training.lua

@@ -120,7 +120,7 @@ function IntervalTrainingGame:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs)
+		strTrueValues(self.prev_inputs)
 	)
 	love.graphics.printf("NEXT", 64, 40, 40, "left")
 	love.graphics.printf("TIME LEFT", 240, 250, 80, "left")
@@ -134,7 +134,7 @@ function IntervalTrainingGame:drawScoringInfo()
 
 	-- draw time left, flash red if necessary
 	local time_left = self.section_time_limit - math.max(self:getSectionTime(), 0)
-	if not self.game_over and not self.clear and time_left < sp(0,10) and time_left % 4 < 2 then
+	if not self.game_over and not self.clear and time_left < frameTime(0,10) and time_left % 4 < 2 then
 		love.graphics.setColor(1, 0.3, 0.3, 1)
 	end
 	love.graphics.printf(formatTime(time_left), 240, 270, 160, "left")

tetris/modes/konoha.lua

@@ -0,0 +1,190 @@
+require 'funcs'
+
+local GameMode = require 'tetris.modes.gamemode'
+local Piece = require 'tetris.components.piece'
+
+local KonohaRandomizer = require 'tetris.randomizers.bag_konoha'
+
+local KonohaGame = GameMode:extend()
+
+KonohaGame.name = "All Clear A4"
+KonohaGame.hash = "AllClearA4"
+KonohaGame.tagline = "Get as many bravos as you can under the time limit!"
+
+function KonohaGame:new()
+	KonohaGame.super:new()
+
+	self.randomizer = KonohaRandomizer()
+	self.bravos = 0
+    self.last_bonus_amount = 0
+    self.last_bonus_display_time = 0
+	self.time_limit = 10800
+	self.big_mode = true
+	
+	self.enable_hold = true
+	self.next_queue_length = 3
+end
+
+function KonohaGame:getARE()
+	    if self.level < 300  then return 30
+	elseif self.level < 400  then return 25
+	elseif self.level < 500  then return 20
+	elseif self.level < 600  then return 17
+	elseif self.level < 800  then return 15
+	elseif self.level < 900  then return 13
+	elseif self.level < 1000 then return 10
+	elseif self.level < 1300 then return 8
+	else return 6 end
+end
+
+function KonohaGame:getLineARE()
+	return self:getARE()
+end
+
+function KonohaGame:getDasLimit()
+	    if self.level < 500  then return 10
+	elseif self.level < 800  then return 9
+	elseif self.level < 1000 then return 8
+	else return 7 end
+end
+
+function KonohaGame:getLineClearDelay()
+	    if self.level < 200  then return 14
+	elseif self.level < 500  then return 9
+	elseif self.level < 800  then return 8
+	elseif self.level < 1000 then return 7
+	else return 6 end
+end
+
+function KonohaGame:getLockDelay()
+	    if self.level < 500  then return 30
+	elseif self.level < 600  then return 25
+	elseif self.level < 700  then return 23
+	elseif self.level < 800  then return 20
+	elseif self.level < 900  then return 17
+	elseif self.level < 1000 then return 15
+	elseif self.level < 1200 then return 13
+	elseif self.level < 1300 then return 10
+	else return 8 end
+end
+
+function KonohaGame:getGravity()
+	    if (self.level < 30)  then return 4/256
+	elseif (self.level < 35)  then return 8/256
+	elseif (self.level < 40)  then return 12/256
+	elseif (self.level < 50)  then return 16/256
+	elseif (self.level < 60)  then return 32/256
+	elseif (self.level < 70)  then return 48/256
+	elseif (self.level < 80)  then return 64/256
+	elseif (self.level < 90)  then return 128/256
+	elseif (self.level < 100) then return 192/256
+	elseif (self.level < 120) then return 1
+	elseif (self.level < 140) then return 2
+	elseif (self.level < 160) then return 3
+	elseif (self.level < 170) then return 4
+	elseif (self.level < 200) then return 5
+	else return 20 end
+end
+
+function KonohaGame:getSection()
+	return math.floor(level / 100) + 1
+end
+
+function KonohaGame:getSectionEndLevel()
+	return math.floor(self.level / 100 + 1) * 100
+end
+
+function KonohaGame:advanceOneFrame()
+	if self.ready_frames == 0 then
+		self.time_limit = self.time_limit - 1
+		self.frames = self.frames + 1
+	end
+	if self.time_limit <= 0 then
+		self.game_over = true
+	end
+    self.last_bonus_display_time = self.last_bonus_display_time - 1
+end
+
+function KonohaGame:onPieceEnter()
+	if (self.level % 100 ~= 99) and self.frames ~= 0 then
+		self.level = self.level + 1
+	end
+end
+
+function KonohaGame:drawGrid(ruleset)
+	self.grid:draw()
+	if self.piece ~= nil and self.level < 100 then
+		self:drawGhostPiece(ruleset)
+	end
+end
+
+local cleared_row_levels = {2, 4, 6, 12}
+local bravo_bonus = {300, 480, 660, 900}
+local non_bravo_bonus = {0, 0, 20, 40}
+local bravo_ot_bonus = {0, 60, 120, 180}
+
+function KonohaGame:onLineClear(cleared_row_count)
+    local oldtime = self.time_limit
+	
+    self.level = self.level + cleared_row_levels[cleared_row_count / 2]
+	if self.grid:checkForBravo(cleared_row_count) then
+		self.bravos = self.bravos + 1
+		if self.level < 1000 then self.time_limit = self.time_limit + bravo_bonus[cleared_row_count / 2]
+		else self.time_limit = self.time_limit + bravo_ot_bonus[cleared_row_count / 2]
+		end
+		if self.bravos == 11 then self.randomizer.allowrepeat = true end
+	elseif self.level < 1000 then
+		self.time_limit = self.time_limit + non_bravo_bonus[cleared_row_count / 2]
+	end
+    
+    local bonus = self.time_limit - oldtime
+    if bonus > 0 then
+        self.last_bonus_amount = bonus
+        self.last_bonus_display_time = 120
+    end
+end
+
+function KonohaGame:getBackground()
+	return math.floor(self.level / 100)
+end
+
+function KonohaGame:drawScoringInfo()
+	love.graphics.setColor(1, 1, 1, 1)
+
+	love.graphics.setFont(font_3x5_2)
+	love.graphics.print(
+		self.das.direction .. " " ..
+		self.das.frames .. " " ..
+		strTrueValues(self.prev_inputs)
+	)
+	love.graphics.printf("NEXT", 64, 40, 40, "left")
+	love.graphics.printf("TIME LIMIT", 240, 120, 120, "left")
+	love.graphics.printf("BRAVOS", 240, 200, 50, "left")
+	love.graphics.printf("LEVEL", 240, 320, 40, "left")
+	
+	love.graphics.setFont(font_3x5_3)
+	if not self.game_over and self.time_limit < frameTime(0,10) and self.time_limit % 4 < 2 then
+                love.graphics.setColor(1, 0.3, 0.3, 1)
+        end
+	love.graphics.printf(formatTime(self.time_limit), 240, 140, 120, "right")
+	love.graphics.setColor(1, 1, 1, 1)
+    if self.last_bonus_display_time > 0 then
+        love.graphics.printf("+"..formatTime(self.last_bonus_amount), 240, 160, 120, "right")
+    end
+	love.graphics.printf(self.bravos, 240, 220, 90, "left")
+	love.graphics.printf(self.level, 240, 340, 50, "right")
+	love.graphics.printf(self:getSectionEndLevel(), 240, 370, 50, "right")
+
+	love.graphics.setFont(font_8x11)
+	love.graphics.printf(formatTime(self.frames), 64, 420, 160, "center")
+end
+
+function KonohaGame:getHighscoreData()
+	return {
+		bravos = self.bravos,
+		level = self.level,
+		frames = self.frames,
+	}
+end
+
+return KonohaGame

tetris/modes/marathon_2020.lua

@@ -151,11 +151,11 @@ function Marathon2020Game:advanceOneFrame()
 end
 
 local cool_cutoffs = {
-	sp(0,45,00), sp(0,41,50), sp(0,38,50), sp(0,35,00), sp(0,32,50),
+	frameTime(0,45,00), frameTime(0,41,50), frameTime(0,38,50), frameTime(0,35,00), frameTime(0,32,50),
-	sp(0,29,20), sp(0,27,20), sp(0,24,80), sp(0,22,80), sp(0,20,60),
+	frameTime(0,29,20), frameTime(0,27,20), frameTime(0,24,80), frameTime(0,22,80), frameTime(0,20,60),
-	sp(0,19,60), sp(0,19,40), sp(0,19,40), sp(0,18,40), sp(0,18,20),
+	frameTime(0,19,60), frameTime(0,19,40), frameTime(0,19,40), frameTime(0,18,40), frameTime(0,18,20),
-	sp(0,16,20), sp(0,16,20), sp(0,16,20), sp(0,16,20), sp(0,16,20),
+	frameTime(0,16,20), frameTime(0,16,20), frameTime(0,16,20), frameTime(0,16,20), frameTime(0,16,20),
-	sp(0,15,20)
+	frameTime(0,15,20)
 }
 
 local levels_for_cleared_rows = { 1, 2, 4, 6 }
@@ -284,11 +284,11 @@ function Marathon2020Game:sectionPassed(old_level, new_level)
 end
 
 function Marathon2020Game:checkTorikan(section)
-	if section == 5 and self.frames < sp(6,00,00) then self.torikan_passed[500] = true end
+	if section == 5 and self.frames < frameTime(6,00,00) then self.torikan_passed[500] = true end
-	if section == 9 and self.frames < sp(8,30,00) then self.torikan_passed[900] = true end
+	if section == 9 and self.frames < frameTime(8,30,00) then self.torikan_passed[900] = true end
-	if section == 10 and self.frames < sp(8,45,00) then self.torikan_passed[1000] = true end
+	if section == 10 and self.frames < frameTime(8,45,00) then self.torikan_passed[1000] = true end
-	if section == 15 and self.frames < sp(11,30,00) then self.torikan_passed[1500] = true end
+	if section == 15 and self.frames < frameTime(11,30,00) then self.torikan_passed[1500] = true end
-	if section == 19 and self.frames < sp(13,15,00) then self.torikan_passed[1900] = true end
+	if section == 19 and self.frames < frameTime(13,15,00) then self.torikan_passed[1900] = true end
 end
 
 function Marathon2020Game:checkClear(level)

tetris/modes/marathon_a1.lua

@@ -23,6 +23,11 @@ function MarathonA1Game:new()
 		level500 = false,
 		level999 = false
     }
+    self.SGnames = {
+        "9", "8", "7", "6", "5", "4", "3", "2", "1",
+        "S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9",
+        "GM"
+    }
     
 	self.randomizer = History4RollsRandomizer()
 
@@ -155,15 +160,15 @@ end
 
 function MarathonA1Game:checkGMRequirements(old_level, new_level)
 	if old_level < 300 and new_level >= 300 then
-		if self.score > 12000 and self.frames <= sp(4,15) then
+		if self.score > 12000 and self.frames <= frameTime(4,15) then
 			self.gm_conditions["level300"] = true
 		end
 	elseif old_level < 500 and new_level >= 500 then
-		if self.score > 40000 and self.frames <= sp(7,30) then
+		if self.score > 40000 and self.frames <= frameTime(7,30) then
 			self.gm_conditions["level500"] = true
 		end
 	elseif old_level < 999 and new_level >= 999 then
-		if self.score > 126000 and self.frames <= sp(13,30) then
+		if self.score > 126000 and self.frames <= frameTime(13,30) then
 			self.gm_conditions["level900"] = true
 		end
 	end
@@ -184,13 +189,17 @@ function MarathonA1Game:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs)
+		strTrueValues(self.prev_inputs)
 	)
 	love.graphics.printf("NEXT", 64, 40, 40, "left")
 	love.graphics.printf("GRADE", 240, 120, 40, "left")
 	love.graphics.printf("SCORE", 240, 200, 40, "left")
 	love.graphics.printf("NEXT RANK", 240, 260, 90, "left")
 	love.graphics.printf("LEVEL", 240, 320, 40, "left")
+    local sg = self.grid:checkSecretGrade()
+    if sg >= 5 then 
+        love.graphics.printf("SECRET GRADE", 240, 430, 180, "left")
+    end
 
 	love.graphics.setFont(font_3x5_3)
 	love.graphics.printf(self.score, 240, 220, 90, "left")
@@ -202,6 +211,9 @@ function MarathonA1Game:drawScoringInfo()
 	love.graphics.printf(getRankForScore(self.score).next, 240, 280, 90, "left")
 	love.graphics.printf(self.level, 240, 340, 40, "right")
 	love.graphics.printf(self:getSectionEndLevel(), 240, 370, 40, "right")
+    if sg >= 5 then
+        love.graphics.printf(self.SGnames[sg], 240, 450, 180, "left")
+    end
     
 	love.graphics.setFont(font_8x11)
 	love.graphics.printf(formatTime(self.frames), 64, 420, 160, "center")

tetris/modes/marathon_a2.lua

@@ -27,6 +27,12 @@ function MarathonA2Game:new()
 	self.section_times = { [0] = 0 }
 	self.section_tetrises = { [0] = 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
     
+    self.SGnames = {
+        "9", "8", "7", "6", "5", "4", "3", "2", "1",
+        "S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9",
+        "GM"
+    }
+    
 	self.randomizer = History6RollsRandomizer()
 
     self.lock_drop = false
@@ -260,7 +266,7 @@ function MarathonA2Game:qualifiesForMRoll()
 	local section_average = 0
 	for section = 0, 4 do
 		section_average = section_average + self.section_times[section]
-		if self.section_times[section] > sp(1,05) then
+		if self.section_times[section] > frameTime(1,05) then
 			return false
 		end
 	end
@@ -273,7 +279,7 @@ function MarathonA2Game:qualifiesForMRoll()
 			return false
 		end
 	end
-	if self.grade < 17 or self.frames > sp(8,45) then
+	if self.grade < 17 or self.frames > frameTime(9,30) then
 		return false
 	end
 	return true
@@ -325,18 +331,25 @@ function MarathonA2Game:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs)
+		strTrueValues(self.prev_inputs)
 	)
 	love.graphics.printf("NEXT", 64, 40, 40, "left")
 	love.graphics.printf("GRADE", 240, 120, 40, "left")
 	love.graphics.printf("SCORE", 240, 200, 40, "left")
 	love.graphics.printf("LEVEL", 240, 320, 40, "left")
+    local sg = self.grid:checkSecretGrade()
+    if sg >= 5 then 
+        love.graphics.printf("SECRET GRADE", 240, 430, 180, "left")
+    end
 
 	love.graphics.setFont(font_3x5_3)
 	love.graphics.printf(self:getLetterGrade(), 240, 140, 90, "left")
 	love.graphics.printf(self.score, 240, 220, 90, "left")
 	love.graphics.printf(self.level, 240, 340, 40, "right")
 	love.graphics.printf(self:getSectionEndLevel(), 240, 370, 40, "right")
+    if sg >= 5 then
+        love.graphics.printf(self.SGnames[sg], 240, 450, 180, "left")
+    end
 
 	love.graphics.setFont(font_8x11)
 	love.graphics.printf(formatTime(self.frames), 64, 420, 160, "center")

tetris/modes/marathon_a3.lua

@@ -32,10 +32,19 @@ function MarathonA3Game:new()
     
 	self.randomizer = History6RollsRandomizer()
 
+self.SGnames = {
+        "9", "8", "7", "6", "5", "4", "3", "2", "1",
+        "S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9",
+        "GM"
+    }
+	
     self.lock_drop = true
     self.lock_hard_drop = true
 	self.enable_hold = true
 	self.next_queue_length = 3
+	
+	self.coolregret_message = "COOL!!"
+	self.coolregret_timer = 0
 end
 
 function MarathonA3Game:getARE()
@@ -160,13 +169,13 @@ function MarathonA3Game:onLineClear(cleared_row_count)
 end
 
 local cool_cutoffs = {
-	sp(0,52), sp(0,52), sp(0,49), sp(0,45), sp(0,45),
+	frameTime(0,52), frameTime(0,52), frameTime(0,49), frameTime(0,45), frameTime(0,45),
-	sp(0,42), sp(0,42), sp(0,38), sp(0,38), 
+	frameTime(0,42), frameTime(0,42), frameTime(0,38), frameTime(0,38), 
 }
 
 local regret_cutoffs = {
-	sp(0,90), sp(0,75), sp(0,75), sp(0,68), sp(0,60),
+	frameTime(0,90), frameTime(0,75), frameTime(0,75), frameTime(0,68), frameTime(0,60),
-	sp(0,60), sp(0,50), sp(0,50), sp(0,50), sp(0,50),
+	frameTime(0,60), frameTime(0,50), frameTime(0,50), frameTime(0,50), frameTime(0,50),
 }
 
 function MarathonA3Game:updateSectionTimes(old_level, new_level)
@@ -182,17 +191,23 @@ function MarathonA3Game:updateSectionTimes(old_level, new_level)
 		if section_time > regret_cutoffs[section] then
 			self.section_cool_grade = self.section_cool_grade - 1
 			table.insert(self.section_status, "regret")
+			self.coolregret_message = "REGRET!!"
+			self.coolregret_timer = 300
 		elseif section <= 9 and self.section_status[section - 1] == "cool" and
 		self.section_70_times[section] < self.section_70_times[section - 1] + 120 then
 			self.section_cool_grade = self.section_cool_grade + 1
 			self.speed_level = self.speed_level + 100
 			table.insert(self.section_status, "cool")
+			self.coolregret_message = "COOL!!"
+			self.coolregret_timer = 300
 		elseif self.section_status[section - 1] == "cool" then
 			table.insert(self.section_status, "none")
 		elseif section <= 9 and self.section_70_times[section] < cool_cutoffs[section] then
 			self.section_cool_grade = self.section_cool_grade + 1
 			self.speed_level = self.speed_level + 100
 			table.insert(self.section_status, "cool")
+			self.coolregret_message = "COOL!!"
+			self.coolregret_timer = 300
 		else
 			table.insert(self.section_status, "none")
 		end
@@ -372,12 +387,16 @@ function MarathonA3Game:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs)
+		strTrueValues(self.prev_inputs)
 	)
 	love.graphics.printf("NEXT", 64, 40, 40, "left")
 	love.graphics.printf("GRADE", 240, 120, 40, "left")
 	love.graphics.printf("SCORE", 240, 200, 40, "left")
 	love.graphics.printf("LEVEL", 240, 320, 40, "left")
+	local sg = self.grid:checkSecretGrade()
+    if sg >= 5 then
+        love.graphics.printf("SECRET GRADE", 240, 430, 180, "left")
+    end
 
 	-- draw section time data
 	current_section = math.floor(self.level / 100) + 1
@@ -406,11 +425,19 @@ function MarathonA3Game:drawScoringInfo()
 
 	love.graphics.printf(formatTime(self.frames - self.section_start_time), current_x, 40 + 20 * current_section, 90, "left")
 	
+	if(self.coolregret_timer > 0) then
+                love.graphics.printf(self.coolregret_message, 64, 400, 160, "center")
+                self.coolregret_timer = self.coolregret_timer - 1
+        end
+
 	love.graphics.setFont(font_3x5_3)
 	love.graphics.printf(self.score, 240, 220, 90, "left")
 	love.graphics.printf(self:getLetterGrade(), 240, 140, 90, "left")
 	love.graphics.printf(self.level, 240, 340, 40, "right")
 	love.graphics.printf(self:getSectionEndLevel(), 240, 370, 40, "right")
+	if sg >= 5 then
+        love.graphics.printf(self.SGnames[sg], 240, 450, 180, "left")
+    end
 
 	love.graphics.setFont(font_8x11)
 	love.graphics.printf(formatTime(self.frames), 64, 420, 160, "center")

tetris/modes/marathon_ax4.lua

@@ -3,7 +3,7 @@ require 'funcs'
 local GameMode = require 'tetris.modes.gamemode'
 local Piece = require 'tetris.components.piece'
 
-local History6RollsRandomizer = require 'tetris.randomizers.history_6rolls'
+local Bag7NoSZOStartRandomizer = require 'tetris.randomizers.bag7noSZOstart'
 
 local MarathonAX4Game = GameMode:extend()
 
@@ -16,7 +16,7 @@ function MarathonAX4Game:new()
 	MarathonAX4Game.super:new()
 
 	self.roll_frames = 0
-	self.randomizer = History6RollsRandomizer()
+	self.randomizer = Bag7NoSZOStartRandomizer()
 
 	self.section_time_limit = 3600
 	self.section_start_time = 0
@@ -141,7 +141,7 @@ function MarathonAX4Game:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs)
+		strTrueValues(self.prev_inputs)
 	)
 	love.graphics.printf("NEXT", 64, 40, 40, "left")
 	love.graphics.printf("TIME LEFT", 240, 250, 80, "left")
@@ -156,7 +156,7 @@ function MarathonAX4Game:drawScoringInfo()
 
 	-- draw time left, flash red if necessary
 	local time_left = self.section_time_limit - math.max(self:getSectionTime(), 0)
-	if not self.game_over and not self.clear and time_left < sp(0,10) and time_left % 4 < 2 then
+	if not self.game_over and not self.clear and time_left < frameTime(0,10) and time_left % 4 < 2 then
 		love.graphics.setColor(1, 0.3, 0.3, 1)
 	end
 	love.graphics.printf(formatTime(time_left), 240, 270, 160, "left")

tetris/modes/marathon_c89.lua

@@ -156,7 +156,7 @@ function MarathonC89Game:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs)
+		strTrueValues(self.prev_inputs)
 	)
 	love.graphics.printf("NEXT", 64, 40, 40, "left")
 	love.graphics.printf("LINES", 240, 120, 40, "left")

tetris/modes/phantom_mania.lua

@@ -61,15 +61,15 @@ function PhantomManiaGame:getGravity()
 end
 
 function PhantomManiaGame:hitTorikan(old_level, new_level)
-	if old_level < 300 and new_level >= 300 and self.frames > sp(2,28) then
+	if old_level < 300 and new_level >= 300 and self.frames > frameTime(2,28) then
 		self.level = 300
 		return true
 	end
-	if old_level < 500 and new_level >= 500 and self.frames > sp(3,38) then
+	if old_level < 500 and new_level >= 500 and self.frames > frameTime(3,38) then
 		self.level = 500
 		return true
 	end
-	if old_level < 800 and new_level >= 800 and self.frames > sp(5,23) then
+	if old_level < 800 and new_level >= 800 and self.frames > frameTime(5,23) then
 		self.level = 800
 		return true
 	end

tetris/modes/phantom_mania2.lua

@@ -86,19 +86,19 @@ function PhantomMania2Game:getNextPiece(ruleset)
 end
 
 function PhantomMania2Game:hitTorikan(old_level, new_level)
-	if old_level < 300 and new_level >= 300 and self.frames > sp(2,02) then
+	if old_level < 300 and new_level >= 300 and self.frames > frameTime(2,02) then
 		self.level = 300
 		return true
 	end
-	if old_level < 500 and new_level >= 500 and self.frames > sp(3,03) then
+	if old_level < 500 and new_level >= 500 and self.frames > frameTime(3,03) then
 		self.level = 500
 		return true
 	end
-	if old_level < 800 and new_level >= 800 and self.frames > sp(4,45) then
+	if old_level < 800 and new_level >= 800 and self.frames > frameTime(4,45) then
 		self.level = 800
 		return true
 	end
-	if old_level < 1000 and new_level >= 1000 and self.frames > sp(5,38) then
+	if old_level < 1000 and new_level >= 1000 and self.frames > frameTime(5,38) then
 		self.level = 1000
 		return true
 	end
@@ -188,15 +188,15 @@ end
 
 
 local cool_cutoffs = {
-	sp(0,36), sp(0,36), sp(0,36), sp(0,36), sp(0,36),
+	frameTime(0,36), frameTime(0,36), frameTime(0,36), frameTime(0,36), frameTime(0,36),
-	sp(0,30), sp(0,30), sp(0,30), sp(0,30), sp(0,30),
+	frameTime(0,30), frameTime(0,30), frameTime(0,30), frameTime(0,30), frameTime(0,30),
-	sp(0,27), sp(0,27), sp(0,27),
+	frameTime(0,27), frameTime(0,27), frameTime(0,27),
 }
 
 local regret_cutoffs = {
-	sp(0,50), sp(0,50), sp(0,50), sp(0,50), sp(0,50),
+	frameTime(0,50), frameTime(0,50), frameTime(0,50), frameTime(0,50), frameTime(0,50),
-	sp(0,40), sp(0,40), sp(0,40), sp(0,40), sp(0,40),
+	frameTime(0,40), frameTime(0,40), frameTime(0,40), frameTime(0,40), frameTime(0,40),
-	sp(0,35), sp(0,35), sp(0,35),
+	frameTime(0,35), frameTime(0,35), frameTime(0,35),
 }
 
 function PhantomMania2Game:updateSectionTimes(old_level, new_level)

tetris/modes/survival_2020.lua

@@ -102,15 +102,15 @@ function Survival2020Game:getNextPiece(ruleset)
 end
 
 function Survival2020Game:hitTorikan(old_level, new_level)
-	if old_level < 500 and new_level >= 500 and self.frames > sp(3,00) then
+	if old_level < 500 and new_level >= 500 and self.frames > frameTime(3,00) then
 		self.level = 500
 		return true
 	end
-	if old_level < 1000 and new_level >= 1000 and self.frames > sp(5,00) then
+	if old_level < 1000 and new_level >= 1000 and self.frames > frameTime(5,00) then
 		self.level = 1000
 		return true
 	end
-	if old_level < 1500 and new_level >= 1500 and self.frames > sp(7,00) then
+	if old_level < 1500 and new_level >= 1500 and self.frames > frameTime(7,00) then
 		self.level = 1500
 		return true
 	end
@@ -193,7 +193,7 @@ function Survival2020Game:updateSectionTimes(old_level, new_level)
 		section_time = self.frames - self.section_start_time
 		table.insert(self.section_times, section_time)
 		self.section_start_time = self.frames
-		if section_time <= sp(0,30) then
+		if section_time <= frameTime(0,30) then
 			self.grade = self.grade + 2
 		else
 			self.grade = self.grade + 1

tetris/modes/survival_a1.lua

@@ -25,6 +25,12 @@ function SurvivalA1Game:new()
 		level999 = false
     }
     
+    self.SGnames = {
+        "9", "8", "7", "6", "5", "4", "3", "2", "1",
+        "S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9",
+        "GM"
+    }
+    
 	self.randomizer = History4RollsRandomizer()
 
     self.lock_drop = false
@@ -125,15 +131,15 @@ end
 
 function SurvivalA1Game:checkGMRequirements(old_level, new_level)
 	if old_level < 300 and new_level >= 300 then
-		if self.score > 12000 and self.frames <= sp(4,15) then
+		if self.score > 12000 and self.frames <= frameTime(4,15) then
 			self.gm_conditions["level300"] = true
 		end
 	elseif old_level < 500 and new_level >= 500 then
-		if self.score > 40000 and self.frames <= sp(7,30) then
+		if self.score > 40000 and self.frames <= frameTime(7,30) then
 			self.gm_conditions["level500"] = true
 		end
 	elseif old_level < 999 and new_level >= 999 then
-		if self.score > 126000 and self.frames <= sp(13,30) then
+		if self.score > 126000 and self.frames <= frameTime(13,30) then
 			self.gm_conditions["level900"] = true
 		end
 	end
@@ -151,13 +157,17 @@ function SurvivalA1Game:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs)
+		strTrueValues(self.prev_inputs)
 	)
 	love.graphics.printf("NEXT", 64, 40, 40, "left")
 	love.graphics.printf("GRADE", 240, 120, 40, "left")
 	love.graphics.printf("SCORE", 240, 200, 40, "left")
 	love.graphics.printf("NEXT RANK", 240, 260, 90, "left")
 	love.graphics.printf("LEVEL", 240, 320, 40, "left")
+    local sg = self.grid:checkSecretGrade()
+    if sg >= 5 then 
+        love.graphics.printf("SECRET GRADE", 240, 430, 180, "left")
+    end
 
 	love.graphics.setFont(font_3x5_3)
 	love.graphics.printf(self.score, 240, 220, 90, "left")
@@ -169,6 +179,9 @@ function SurvivalA1Game:drawScoringInfo()
 	love.graphics.printf(getRankForScore(self.score).next, 240, 280, 90, "left")
 	love.graphics.printf(self.level, 240, 340, 40, "right")
 	love.graphics.printf(self:getSectionEndLevel(), 240, 370, 40, "right")
+    if sg >= 5 then
+        love.graphics.printf(self.SGnames[sg], 240, 450, 180, "left")
+    end
 
 	love.graphics.setFont(font_8x11)
 	love.graphics.printf(formatTime(self.frames), 64, 420, 160, "center")

tetris/modes/survival_a2.lua

@@ -20,6 +20,12 @@ function SurvivalA2Game:new()
 	self.combo = 1
 	self.randomizer = History6RollsRandomizer()
     
+    self.SGnames = {
+        "9", "8", "7", "6", "5", "4", "3", "2", "1",
+        "S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9",
+        "GM"
+    }
+
 	self.lock_drop = true
 end
 
@@ -62,7 +68,7 @@ function SurvivalA2Game:getGravity()
 end
 
 function SurvivalA2Game:hitTorikan(old_level, new_level)
-	if old_level < 500 and new_level >= 500 and self.frames > sp(3,25) then
+	if old_level < 500 and new_level >= 500 and self.frames > frameTime(3,25) then
 		self.level = 500
 		return true
 	end
@@ -132,18 +138,25 @@ function SurvivalA2Game:drawScoringInfo()
 	love.graphics.print(
 		self.das.direction .. " " ..
 		self.das.frames .. " " ..
-		st(self.prev_inputs)
+		strTrueValues(self.prev_inputs)
 	)
 	love.graphics.printf("NEXT", 64, 40, 40, "left")
 	love.graphics.printf("GRADE", text_x, 120, 40, "left")
 	love.graphics.printf("SCORE", text_x, 200, 40, "left")
 	love.graphics.printf("LEVEL", text_x, 320, 40, "left")
+    local sg = self.grid:checkSecretGrade()
+    if sg >= 5 then 
+        love.graphics.printf("SECRET GRADE", 240, 430, 180, "left")
+    end
 
 	love.graphics.setFont(font_3x5_3)
 	love.graphics.printf(self.score, text_x, 220, 90, "left")
 	love.graphics.printf(self:getLetterGrade(), text_x, 140, 90, "left")
 	love.graphics.printf(self.level, text_x, 340, 40, "right")
 	love.graphics.printf(self:getSectionEndLevel(), text_x, 370, 40, "right")
+    if sg >= 5 then
+        love.graphics.printf(self.SGnames[sg], 240, 450, 180, "left")
+    end
 end
 
 function SurvivalA2Game:getSectionEndLevel()

tetris/modes/survival_a3.lua

@@ -25,9 +25,18 @@ function SurvivalA3Game:new()
 	self.combo = 1
 	self.randomizer = History6RollsRandomizer()
     
+    self.SGnames = {
+        "S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8", "S9",
+        "m1", "m2", "m3", "m4", "m5", "m6", "m7", "m8", "m9",
+        "GM"
+    }
+
 	self.lock_drop = true
 	self.enable_hold = true
 	self.next_queue_length = 3
+
+	self.coolregret_message = "COOL!!"
+	self.coolregret_timer = 0
 end
 
 function SurvivalA3Game:getARE()
@@ -86,11 +95,11 @@ function SurvivalA3Game:getNextPiece(ruleset)
 end
 
 function SurvivalA3Game:hitTorikan(old_level, new_level)
-	if old_level < 500 and new_level >= 500 and self.frames > sp(2,28) then
+	if old_level < 500 and new_level >= 500 and self.frames > frameTime(2,28) then
 		self.level = 500
 		return true
 	end
-	if old_level < 1000 and new_level >= 1000 and self.frames > sp(4,56) then
+	if old_level < 1000 and new_level >= 1000 and self.frames > frameTime(4,56) then
 		self.level = 1000
 		return true
 	end
@@ -168,8 +177,11 @@ function SurvivalA3Game:updateSectionTimes(old_level, new_level)
 		section_time = self.frames - self.section_start_time
 		table.insert(self.section_times, section_time)
 		self.section_start_time = self.frames
-		if section_time <= sp(1,00) then
+		if section_time <= frameTime(1,00) then
 			self.grade = self.grade + 1
+		else
+			self.coolregret_message = "REGRET!!"
+			self.coolregret_timer = 300
 		end
 	end
 end
@@ -207,6 +219,15 @@ function SurvivalA3Game:drawScoringInfo()
 	love.graphics.printf("GRADE", text_x, 120, 40, "left")
 	love.graphics.printf("SCORE", text_x, 200, 40, "left")
 	love.graphics.printf("LEVEL", text_x, 320, 40, "left")
+    local sg = self.grid:checkSecretGrade()
+    if sg >= 5 then 
+        love.graphics.printf("SECRET GRADE", 240, 430, 180, "left")
+    end
+	
+	if(self.coolregret_timer > 0) then
+		love.graphics.printf(self.coolregret_message, 64, 400, 160, "center")
+		self.coolregret_timer = self.coolregret_timer - 1
+	end
 
 	local current_section = math.floor(self.level / 100) + 1
 	self:drawSectionTimesWithSplits(current_section)
@@ -220,6 +241,9 @@ function SurvivalA3Game:drawScoringInfo()
 	else
 		love.graphics.printf(math.floor(self.level / 100 + 1) * 100, text_x, 370, 50, "right")
 	end
+    if sg >= 5 then
+        love.graphics.printf(self.SGnames[sg], 240, 450, 180, "left")
+    end
 end
 
 function SurvivalA3Game:getBackground()

tetris/randomizers/bag5.lua

@@ -0,0 +1,17 @@
+local Randomizer = require 'tetris.randomizers.randomizer'
+
+local Bag5Randomizer = Randomizer:extend()
+
+function Bag5Randomizer:initialize()
+	self.bag = {"I", "J", "L", "O", "T"}
+end
+
+function Bag5Randomizer:generatePiece()
+	if next(self.bag) == nil then
+		self.bag = {"I", "J", "L", "O", "T"}
+	end
+	local x = math.random(table.getn(self.bag))
+	return table.remove(self.bag, x)
+end
+
+return Bag5Randomizer

tetris/randomizers/bag5alt.lua

@@ -0,0 +1,24 @@
+local Randomizer = require 'tetris.randomizers.randomizer'
+
+local Bag5AltRandomizer = Randomizer:extend()
+
+function Bag5AltRandomizer:initialize()
+	self.bag = {"I", "J", "L", "O", "T"}
+	self.prev = nil
+end
+
+function Bag5AltRandomizer:generatePiece()
+	if next(self.bag) == nil then
+		self.bag = {"I", "J", "L", "O", "T"}
+	end
+	local x = math.random(table.getn(self.bag))
+	local temp = table.remove(self.bag, x)
+	if temp == self.prev then
+		local y = math.random(table.getn(self.bag))
+		temp = table.remove(self.bag, y)
+	end
+	self.prev = temp
+	return temp
+end
+
+return Bag5AltRandomizer

tetris/randomizers/bag7noSZOstart.lua

@@ -0,0 +1,31 @@
+local Randomizer = require 'tetris.randomizers.randomizer'
+
+local Bag7NoSZOStartRandomizer = Randomizer:extend()
+
+function Bag7NoSZOStartRandomizer:shuffleBag()
+    local b = self.bag
+    local ln = #b
+    for i = 1, ln do
+        local j = math.random(i, ln)
+        b[i], b[j] = b[j], b[i]
+    end
+end
+
+local function isnotSZO(x) return not(x == "S" or x == "Z" or x == "O") end 
+
+function Bag7NoSZOStartRandomizer:initialize()
+	self.bag = {"I", "J", "L", "O", "S", "T", "Z"}
+    repeat
+        self:shuffleBag()
+    until isnotSZO(self.bag[7])
+end
+
+function Bag7NoSZOStartRandomizer:generatePiece()
+	if #self.bag == 0 then
+		self.bag = {"I", "J", "L", "O", "S", "T", "Z"}
+        self:shuffleBag()
+	end
+	return table.remove(self.bag)
+end
+
+return Bag7NoSZOStartRandomizer

tetris/randomizers/bag_konoha.lua

@@ -0,0 +1,28 @@
+local Randomizer = require 'tetris.randomizers.randomizer'
+
+local BagKonoha = Randomizer:extend()
+
+function BagKonoha:initialize()
+	self.bag = {"I", "J", "L", "O", "T"}
+	self.prev = nil
+	self.allowrepeat = false
+	self.generated = 0
+end
+
+function BagKonoha:generatePiece()
+	self.generated = self.generated + 1
+	if #self.bag == 0 then
+		self.bag = {"I", "J", "L", "O", "T"}
+	end
+	local x = math.random(#self.bag)
+	local temp = table.remove(self.bag, x)
+	if temp == self.prev and not self.allowrepeat then
+		local y = math.random(#self.bag)
+		table.insert(self.bag, temp) -- should insert at the end of the bag, bag[y] doesnt change
+		temp = table.remove(self.bag, y)
+	end
+	self.prev = temp
+	return temp
+end
+
+return BagKonoha

tetris/randomizers/history_4rolls.lua

@@ -3,10 +3,15 @@ local Randomizer = require 'tetris.randomizers.randomizer'
 local History4RollsRandomizer = Randomizer:extend()
 
 function History4RollsRandomizer:initialize()
-	self.history = {"Z", "S", "Z", "S"}
+	self.history = {"Z", "Z", "Z", "Z"}
+    self.first = true
 end
 
 function History4RollsRandomizer:generatePiece()
+    if self.first then
+        self.first = false
+        return self:updateHistory(({"L", "J", "I", "T"})[math.random(4)])
+    else
         local shapes = {"I", "J", "L", "O", "S", "T", "Z"}
         for i = 1, 4 do
             local x = math.random(7)
@@ -15,6 +20,7 @@ function History4RollsRandomizer:generatePiece()
             end
         end
     end
+end
 
 function History4RollsRandomizer:updateHistory(shape)
 	table.remove(self.history, 1)

tetris/randomizers/history_6rolls.lua

@@ -4,9 +4,14 @@ local History6RollsRandomizer = Randomizer:extend()
 
 function History6RollsRandomizer:initialize()
 	self.history = {"Z", "S", "Z", "S"}
+    self.first = true
 end
 
 function History6RollsRandomizer:generatePiece()
+    if self.first then
+        self.first = false
+        return self:updateHistory(({"L", "J", "I", "T"})[math.random(4)])
+    else
         local shapes = {"I", "J", "L", "O", "S", "T", "Z"}
         for i = 1, 6 do
             local x = math.random(7)
@@ -15,6 +20,7 @@ function History6RollsRandomizer:generatePiece()
             end
         end
     end
+end
 
 function History6RollsRandomizer:updateHistory(shape)
 	table.remove(self.history, 1)

tetris/randomizers/history_6rolls_35bag.lua

@@ -1,38 +1,70 @@
 local Randomizer = require 'tetris.randomizers.randomizer'
 
-local History6RollsRandomizer = Randomizer:extend()
+local History6Rolls35PoolRandomizer = Randomizer:extend()
 
-function History6RollsRandomizer:initialize()
+function History6Rolls35PoolRandomizer:initialize()
+    self.first = true
 	self.history = {"Z", "S", "Z", "S"}
-	self.bag_counts = {
+	self.pool = {
-		I = 5, J = 5, L = 5, O = 5, S = 3, T = 5, Z = 3
+		"I", "I", "I", "I", "I",
+        "T", "T", "T", "T", "T",
+        "L", "L", "L", "L", "L",
+        "J", "J", "J", "J", "J",
+        "S", "S", "S", "S", "S",
+        "Z", "Z", "Z", "Z", "Z",
+        "O", "O", "O", "O", "O",
+	}
+    self.droughts = {
+        I = 0,
+        T = 0,
+        L = 0,
+        J = 0,
+        S = 0,
+        Z = 0,
+        O = 0,
     }
 end
 
-function History6RollsRandomizer:getBagPiece(n)
+function History6Rolls35PoolRandomizer:generatePiece()
-	for shape, count in pairs(self.bag_counts) do
+    local index, x
-		n = n - count
+    if self.first then
-		if n <= 0 then
+        local prevent = {"S", "Z", "O"}
-			return shape
+        repeat
-		end
+            index = math.random(#self.pool)
-	end
+            x = self.pool[index]
-end
+        until not inHistory(x, prevent)
-
+        self.first = false
-function History6RollsRandomizer:generatePiece()
+    else
         for i = 1, 6 do
-		local x = self:getBagPiece(math.random(31))
+            index = math.random(#self.pool)
+            x = self.pool[index]
             if not inHistory(x, self.history) or i == 6 then
-			return self:updateHistory(x)
+                break
             end
         end
     end
+    self.pool[index] = self:updateHistory(x)
+    return x
+end
 
-function History6RollsRandomizer:updateHistory(shape)
+function History6Rolls35PoolRandomizer:updateHistory(shape)
-	self.bag_counts[shape] = self.bag_counts[shape] - 1
+	table.remove(self.history, 1)
-	local replaced_piece = table.remove(self.history, 1)
 	table.insert(self.history, shape)
-	self.bag_counts[replaced_piece] = self.bag_counts[replaced_piece] + 1
+
-	return shape
+    local highdrought
+    local highdroughtcount = 0
+    for k, v in pairs(self.droughts) do 
+        if k == shape then
+            self.droughts[k] = 0
+        else
+            self.droughts[k] = v + 1
+            if v >= highdroughtcount then
+                highdrought = k
+                highdroughtcount = v
+            end
+        end
+    end
+	return highdrought
 end
 
 function inHistory(piece, history)
@@ -44,4 +76,4 @@ function inHistory(piece, history)
 	return false
 end
 
-return History6RollsRandomizer
+return History6Rolls35PoolRandomizer

tetris/randomizers/randomizer.lua

@@ -4,15 +4,10 @@ local Randomizer = Object:extend()
 
 function Randomizer:new()
 	self:initialize()
-	self.next_queue = {}
-	for i = 1, 30 do
-		table.insert(self.next_queue, self:generatePiece())
-	end
 end
 
 function Randomizer:nextPiece()
-	table.insert(self.next_queue, self:generatePiece())
+	return self:generatePiece()
-	return table.remove(self.next_queue, 1)
 end
 
 function Randomizer:initialize()

tetris/rulesets/arika.lua

@@ -81,11 +81,19 @@ function ARS:attemptWallkicks(piece, new_piece, rot_dir, grid)
 		piece.shape == "J" or piece.shape == "T" or piece.shape == "L"
 	) and (
 		piece.rotation == 0 or piece.rotation == 2
-	) and (
+	) then
-		grid:isOccupied(piece.position.x, piece.position.y) or
+        local offsets = new_piece:getBlockOffsets()
-		grid:isOccupied(piece.position.x, piece.position.y - 1) or
+        table.sort(offsets, function(A, B) return A.y < B.y or A.y == B.y and A.x < B.y end)
-		grid:isOccupied(piece.position.x, piece.position.y - 2)
+        for index, offset in pairs(offsets) do
-	) then return end
+            if grid:isOccupied(piece.position.x + offset.x, piece.position.y + offset.y) then
+                if offset.x == 0 then
+                    return 
+                else
+                    break
+                end
+            end
+        end
+    end
 
 	-- kick right, kick left
 	if (grid:canPlacePiece(new_piece:withOffset({x=1, y=0}))) then

tetris/rulesets/arika_ace.lua

@@ -0,0 +1,178 @@
+local Piece = require 'tetris.components.piece'
+local Ruleset = require 'tetris.rulesets.ruleset'
+
+local ARS = Ruleset:extend()
+
+ARS.name = "ACE-ARS"
+ARS.hash = "ArikaACE"
+
+ARS.spawn_positions = {
+	I = { x=5, y=2 },
+	J = { x=4, y=3 },
+	L = { x=4, y=3 },
+	O = { x=5, y=3 },
+	S = { x=4, y=3 },
+	T = { x=4, y=3 },
+	Z = { x=4, y=3 },
+}
+
+ARS.big_spawn_positions = {
+	I = { x=2, y=0 },
+	J = { x=2, y=1 },
+	L = { x=2, y=1 },
+	O = { x=2, y=1 },
+	S = { x=2, y=1 },
+	T = { x=2, y=1 },
+	Z = { x=2, y=1 },
+}
+
+ARS.block_offsets = {
+	I={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-2, y=0}, {x=1, y=0} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1}, {x=0, y=2} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-2, y=0}, {x=1, y=0} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1}, {x=0, y=2} },
+	},
+	J={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=-1, y=-1} },
+		{ {x=0, y=-1}, {x=1, y=-2}, {x=0, y=-2}, {x=0, y=0} },
+		{ {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=-1}, {x=1, y=0} },
+		{ {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=-1, y=0} },
+	},
+	L={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=1, y=-1} },
+		{ {x=0, y=-2}, {x=0, y=-1}, {x=1, y=0}, {x=0, y=0} },
+		{ {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=-1}, {x=-1, y=0} },
+		{ {x=0, y=-1}, {x=-1, y=-2}, {x=0, y=-2}, {x=0, y=0} },
+	},
+	O={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+	},
+	S={
+		{ {x=1, y=-1}, {x=0, y=-1}, {x=0, y=0}, {x=-1, y=0} },
+		{ {x=-1, y=-2}, {x=-1, y=-1}, {x=0, y=-1}, {x=0, y=0} },
+		{ {x=1, y=-1}, {x=0, y=-1}, {x=0, y=0}, {x=-1, y=0} },
+		{ {x=-1, y=-2}, {x=-1, y=-1}, {x=0, y=-1}, {x=0, y=0} },
+	},
+	T={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=0, y=-1} },
+		{ {x=0, y=-1}, {x=0, y=0}, {x=1, y=-1}, {x=0, y=-2} },
+		{ {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=-1}, {x=0, y=0} },
+		{ {x=0, y=-1}, {x=0, y=0}, {x=-1, y=-1}, {x=0, y=-2} },
+	},
+	Z={
+		{ {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=0}, {x=0, y=0} },
+		{ {x=0, y=-1}, {x=0, y=0}, {x=1, y=-2}, {x=1, y=-1} },
+		{ {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=0}, {x=0, y=0} },
+		{ {x=0, y=-1}, {x=0, y=0}, {x=1, y=-2}, {x=1, y=-1} },
+	}
+}
+
+
+-- Component functions.
+
+function ARS:attemptWallkicks(piece, new_piece, rot_dir, grid)
+
+	-- O doesn't kick
+	if (piece.shape == "O") then return end
+
+	-- center column rule
+	if (
+		piece.shape == "J" or piece.shape == "T" or piece.shape == "L"
+	) and (
+		piece.rotation == 0 or piece.rotation == 2
+	) then
+        local offsets = new_piece:getBlockOffsets()
+        table.sort(offsets, function(A, B) return A.y < B.y or A.y == B.y and A.x < B.y end)
+        for index, offset in pairs(offsets) do
+            if grid:isOccupied(piece.position.x + offset.x, piece.position.y + offset.y) then
+                if offset.x == 0 then
+                    return 
+                else
+                    break
+                end
+            end
+        end
+    end
+
+	if piece.shape == "I" then
+		-- special kick rules for I
+		if new_piece.rotation == 0 or new_piece.rotation == 2 then
+			-- kick right, right2, left
+			if grid:canPlacePiece(new_piece:withOffset({x=1, y=0})) then
+				piece:setRelativeRotation(rot_dir):setOffset({x=1, y=0})
+				self:onPieceRotate(piece, grid)
+			elseif grid:canPlacePiece(new_piece:withOffset({x=2, y=0})) then
+				piece:setRelativeRotation(rot_dir):setOffset({x=2, y=0})
+				self:onPieceRotate(piece, grid)
+			elseif grid:canPlacePiece(new_piece:withOffset({x=-1, y=0})) then
+				piece:setRelativeRotation(rot_dir):setOffset({x=-1, y=0})
+				self:onPieceRotate(piece, grid)
+			end
+		elseif piece:isDropBlocked(grid) and (new_piece.rotation == 1 or new_piece.rotation == 3) and piece.floorkick == 0 then
+			-- kick up, up2
+			if grid:canPlacePiece(new_piece:withOffset({x=0, y=-1})) then
+				piece:setRelativeRotation(rot_dir):setOffset({x=0, y=-1})
+				self:onPieceRotate(piece, grid)
+				piece.floorkick = 1
+			elseif grid:canPlacePiece(new_piece:withOffset({x=0, y=-2})) then
+				piece:setRelativeRotation(rot_dir):setOffset({x=0, y=-2})
+				self:onPieceRotate(piece, grid)
+				piece.floorkick = 1
+			end
+		end
+	else
+        -- kick right, kick left
+        if grid:canPlacePiece(new_piece:withOffset({x=1, y=0})) then
+            piece:setRelativeRotation(rot_dir):setOffset({x=1, y=0})
+        elseif grid:canPlacePiece(new_piece:withOffset({x=-1, y=0})) then
+            piece:setRelativeRotation(rot_dir):setOffset({x=-1, y=0})
+        elseif piece.shape == "T"
+           and new_piece.rotation == 1
+           and piece.floorkick == 0
+           and grid:canPlacePiece(new_piece:withOffset({x=0, y=-1}))
+        then
+            -- T floorkick
+            piece.floorkick = piece.floorkick + 1
+            piece:setRelativeRotation(rot_dir):setOffset({x=0, y=-1})
+        end
+	end
+
+end
+
+function ARS:onPieceCreate(piece, grid)
+	piece.floorkick = 0
+	piece.manipulations = 0
+end
+
+function ARS:onPieceDrop(piece, grid)
+	piece.lock_delay = 0 -- step reset
+end
+
+function ARS:onPieceMove(piece, grid)
+	piece.lock_delay = 0 -- move reset
+	if piece:isDropBlocked(grid) then
+		piece.manipulations = piece.manipulations + 1
+		if piece.manipulations >= 127 then
+			piece.locked = true
+		end
+	end
+end
+
+function ARS:onPieceRotate(piece, grid)
+	piece.lock_delay = 0 -- rotate reset
+	if piece:isDropBlocked(grid) then
+		piece.manipulations = piece.manipulations + 1
+		if piece.manipulations >= 127 then
+			piece.locked = true
+		end
+	end
+end
+
+function ARS:get180RotationValue() return config["reverse_rotate"] and 1 or 3 end
+function ARS:getDefaultOrientation() return 3 end  -- downward facing pieces by default
+
+return ARS

tetris/rulesets/arika_srs.lua

@@ -0,0 +1,177 @@
+local Piece = require 'tetris.components.piece'
+local Ruleset = require 'tetris.rulesets.ruleset'
+
+local SRS = Ruleset:extend()
+
+SRS.name = "ACE-SRS"
+SRS.hash = "ACE Standard"
+
+SRS.enable_IRS_wallkicks = true
+
+SRS.spawn_positions = {
+	I = { x=5, y=2 },
+	J = { x=4, y=3 },
+	L = { x=4, y=3 },
+	O = { x=5, y=3 },
+	S = { x=4, y=3 },
+	T = { x=4, y=3 },
+	Z = { x=4, y=3 },
+}
+
+SRS.big_spawn_positions = {
+	I = { x=2, y=0 },
+	J = { x=2, y=1 },
+	L = { x=2, y=1 },
+	O = { x=2, y=1 },
+	S = { x=2, y=1 },
+	T = { x=2, y=1 },
+	Z = { x=2, y=1 },
+}
+
+SRS.block_offsets = {
+	I={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-2, y=0}, {x=1, y=0} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1}, {x=0, y=2} },
+		{ {x=0, y=1}, {x=-1, y=1}, {x=-2, y=1}, {x=1, y=1} },
+		{ {x=-1, y=0}, {x=-1, y=-1}, {x=-1, y=1}, {x=-1, y=2} },
+	},
+	J={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=-1, y=-1} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1} , {x=1, y=-1} },
+		{ {x=0, y=0}, {x=1, y=0}, {x=-1, y=0}, {x=1, y=1} },
+		{ {x=0, y=0}, {x=0, y=1}, {x=0, y=-1}, {x=-1, y=1} },
+	},
+	L={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=1, y=-1} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1}, {x=1, y=1} },
+		{ {x=0, y=0}, {x=1, y=0}, {x=-1, y=0}, {x=-1, y=1} },
+		{ {x=0, y=0}, {x=0, y=1}, {x=0, y=-1}, {x=-1, y=-1} },
+	},
+	O={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+	},
+	S={
+		{ {x=1, y=-1}, {x=0, y=-1}, {x=0, y=0}, {x=-1, y=0} },
+		{ {x=1, y=1}, {x=1, y=0}, {x=0, y=0}, {x=0, y=-1} },
+		{ {x=-1, y=1}, {x=0, y=1}, {x=0, y=0}, {x=1, y=0} },
+		{ {x=-1, y=-1}, {x=-1, y=0}, {x=0, y=0}, {x=0, y=1} },
+	},
+	T={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1}, {x=1, y=0} },
+		{ {x=0, y=0}, {x=1, y=0}, {x=-1, y=0}, {x=0, y=1} },
+		{ {x=0, y=0}, {x=0, y=1}, {x=0, y=-1}, {x=-1, y=0} },
+	},
+	Z={
+		{ {x=-1, y=-1}, {x=0, y=-1}, {x=0, y=0}, {x=1, y=0} },
+		{ {x=1, y=-1}, {x=1, y=0}, {x=0, y=0}, {x=0, y=1} },
+		{ {x=1, y=1}, {x=0, y=1}, {x=0, y=0}, {x=-1, y=0} },
+		{ {x=-1, y=1}, {x=-1, y=0}, {x=0, y=0}, {x=0, y=-1} },
+	}
+}
+
+SRS.wallkicks_3x3 = {
+	[0]={
+		[1]={{x=-1, y=0}, {x=-1, y=-1}, {x=0, y=2}, {x=-1, y=2}},
+		[2]={{x=0, y=1}, {x=0, y=-1}},
+		[3]={{x=1, y=0}, {x=1, y=-1}, {x=0, y=2}, {x=1, y=2}},
+	},
+	[1]={
+		[0]={{x=1, y=0}, {x=1, y=1}, {x=0, y=-2}, {x=1, y=-2}},
+		[2]={{x=1, y=0}, {x=1, y=1}, {x=0, y=-2}, {x=1, y=-2}},
+		[3]={{x=0, y=1}, {x=0, y=-1}},
+	},
+	[2]={
+		[0]={{x=0, y=1}, {x=0, y=-1}},
+		[1]={{x=-1, y=0}, {x=-1, y=-1}, {x=0, y=2}, {x=-1, y=2}},
+		[3]={{x=1, y=0}, {x=1, y=-1}, {x=0, y=2}, {x=1, y=2}},
+	},
+	[3]={
+		[0]={{x=-1, y=0}, {x=-1, y=1}, {x=0, y=-2}, {x=-1, y=-2}},
+		[1]={{x=0, y=1}, {x=0, y=-1}},
+		[2]={{x=-1, y=0}, {x=-1, y=1}, {x=0, y=-2}, {x=-1, y=-2}},
+	},
+};
+
+SRS.wallkicks_line = {
+	[0]={
+		[1]={{x=-2, y=0}, {x=1, y=0}, {x=-2, y=1}, {x=1, y=-2}},
+		[2]={},
+		[3]={{x=-1, y=0}, {x=2, y=0}, {x=-1, y=-2}, {x=2, y=1}},
+	},
+	[1]={
+		[0]={{x=2, y=0}, {x=-1, y=0}, {x=2, y=-1}, {x=-1, y=2}},
+		[2]={{x=-1, y=0}, {x=2, y=0}, {x=-1, y=-2}, {x=2, y=1}},
+		[3]={{x=0, y=1}, {x=0, y=-1}, {x=0, y=2}, {x=0, y=-2}},
+	},
+	[2]={
+		[0]={},
+		[1]={{x=1, y=0}, {x=-2, y=0}, {x=1, y=2}, {x=-2, y=-1}},
+		[3]={{x=2, y=0}, {x=-1, y=0}, {x=2, y=-1}, {x=-1, y=2}},
+	},
+	[3]={
+		[0]={{x=1, y=0}, {x=-2, y=0}, {x=1, y=2}, {x=-2, y=-1}},
+		[1]={{x=0, y=1}, {x=0, y=-1}, {x=0, y=2}, {x=0, y=-2}},
+		[2]={{x=-2, y=0}, {x=1, y=0}, {x=-2, y=1}, {x=1, y=-2}},
+	},
+};
+
+-- Component functions.
+
+function SRS:attemptWallkicks(piece, new_piece, rot_dir, grid)
+
+	local kicks
+	if piece.shape == "O" then
+		return
+	elseif 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 SRS:onPieceCreate(piece, grid)
+	piece.manipulations = 0
+end
+
+function SRS:onPieceDrop(piece, grid)
+	piece.lock_delay = 0 -- step reset
+end
+
+function SRS:onPieceMove(piece, grid)
+	piece.lock_delay = 0 -- move reset
+	if piece:isDropBlocked(grid) then
+		piece.manipulations = piece.manipulations + 1
+		if piece.manipulations >= 127 then
+			piece.locked = true
+		end
+	end
+end
+
+function SRS:onPieceRotate(piece, grid)
+	piece.lock_delay = 0 -- rotate reset
+	if piece:isDropBlocked(grid) then
+		piece.manipulations = piece.manipulations + 1
+		if piece.manipulations >= 127 then
+			piece.locked = true
+		end
+	end
+end
+
+return SRS

tetris/rulesets/arika_ti.lua

@@ -84,11 +84,19 @@ function ARS:attemptWallkicks(piece, new_piece, rot_dir, grid)
 		piece.shape == "J" or piece.shape == "T" or piece.shape == "L"
 	) and (
 		piece.rotation == 0 or piece.rotation == 2
-	) and (
+	) then
-		grid:isOccupied(piece.position.x, piece.position.y) or
+        local offsets = new_piece:getBlockOffsets()
-		grid:isOccupied(piece.position.x, piece.position.y - 1) or
+        table.sort(offsets, function(A, B) return A.y < B.y or A.y == B.y and A.x < B.y end)
-		grid:isOccupied(piece.position.x, piece.position.y - 2)
+        for index, offset in pairs(offsets) do
-	) then return end
+            if grid:isOccupied(piece.position.x + offset.x, piece.position.y + offset.y) then
+                if offset.x == 0 then
+                    return 
+                else
+                    break
+                end
+            end
+        end
+    end
 
 	if piece.shape == "I" then
 		-- special kick rules for I
@@ -116,14 +124,21 @@ function ARS:attemptWallkicks(piece, new_piece, rot_dir, grid)
 				piece.floorkick = 1
 			end
 		end
-	elseif piece.shape ~= "I" then
-			-- kick right, kick left
-			if (grid:canPlacePiece(new_piece:withOffset({x=1, y=0}))) then
-				piece:setRelativeRotation(rot_dir):setOffset({x=1, y=0})
-			elseif (grid:canPlacePiece(new_piece:withOffset({x=-1, y=0}))) then
-				piece:setRelativeRotation(rot_dir):setOffset({x=-1, y=0})
-			end
 	else
+        -- kick right, kick left
+        if grid:canPlacePiece(new_piece:withOffset({x=1, y=0})) then
+            piece:setRelativeRotation(rot_dir):setOffset({x=1, y=0})
+        elseif grid:canPlacePiece(new_piece:withOffset({x=-1, y=0})) then
+            piece:setRelativeRotation(rot_dir):setOffset({x=-1, y=0})
+        elseif piece.shape == "T"
+           and new_piece.rotation == 1
+           and piece.floorkick == 0
+           and grid:canPlacePiece(new_piece:withOffset({x=0, y=-1}))
+        then
+            -- T floorkick
+            piece.floorkick = piece.floorkick + 1
+            piece:setRelativeRotation(rot_dir):setOffset({x=0, y=-1})
+        end
 	end
 
 end

tetris/rulesets/standard_exp.lua

@@ -3,29 +3,29 @@ local Ruleset = require 'tetris.rulesets.ruleset'
 
 local SRS = Ruleset:extend()
 
-SRS.name = "SRS"
+SRS.name = "Guideline SRS"
 SRS.hash = "Standard"
 
 SRS.enable_IRS_wallkicks = true
 
 SRS.spawn_positions = {
-	I = { x=5, y=4 },
+	I = { x=5, y=2 },
-	J = { x=4, y=5 },
+	J = { x=4, y=3 },
-	L = { x=4, y=5 },
+	L = { x=4, y=3 },
-	O = { x=5, y=5 },
+	O = { x=5, y=3 },
-	S = { x=4, y=5 },
+	S = { x=4, y=3 },
-	T = { x=4, y=5 },
+	T = { x=4, y=3 },
-	Z = { x=4, y=5 },
+	Z = { x=4, y=3 },
 }
 
 SRS.big_spawn_positions = {
-	I = { x=2, y=2 },
+	I = { x=2, y=0 },
-	J = { x=2, y=3 },
+	J = { x=2, y=1 },
-	L = { x=2, y=3 },
+	L = { x=2, y=1 },
-	O = { x=2, y=3 },
+	O = { x=2, y=1 },
-	S = { x=2, y=3 },
+	S = { x=2, y=1 },
-	T = { x=2, y=3 },
+	T = { x=2, y=1 },
-	Z = { x=2, y=3 },
+	Z = { x=2, y=1 },
 }
 
 SRS.block_offsets = {

tetris/rulesets/ti_srs.lua

@@ -0,0 +1,177 @@
+local Piece = require 'tetris.components.piece'
+local Ruleset = require 'tetris.rulesets.ruleset'
+
+local SRS = Ruleset:extend()
+
+SRS.name = "Ti-World"
+SRS.hash = "Bad I-kicks"
+
+SRS.enable_IRS_wallkicks = true
+
+SRS.spawn_positions = {
+	I = { x=5, y=2 },
+	J = { x=4, y=3 },
+	L = { x=4, y=3 },
+	O = { x=5, y=3 },
+	S = { x=4, y=3 },
+	T = { x=4, y=3 },
+	Z = { x=4, y=3 },
+}
+
+SRS.big_spawn_positions = {
+	I = { x=2, y=0 },
+	J = { x=2, y=1 },
+	L = { x=2, y=1 },
+	O = { x=2, y=1 },
+	S = { x=2, y=1 },
+	T = { x=2, y=1 },
+	Z = { x=2, y=1 },
+}
+
+SRS.block_offsets = {
+	I={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-2, y=0}, {x=1, y=0} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1}, {x=0, y=2} },
+		{ {x=0, y=1}, {x=-1, y=1}, {x=-2, y=1}, {x=1, y=1} },
+		{ {x=-1, y=0}, {x=-1, y=-1}, {x=-1, y=1}, {x=-1, y=2} },
+	},
+	J={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=-1, y=-1} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1} , {x=1, y=-1} },
+		{ {x=0, y=0}, {x=1, y=0}, {x=-1, y=0}, {x=1, y=1} },
+		{ {x=0, y=0}, {x=0, y=1}, {x=0, y=-1}, {x=-1, y=1} },
+	},
+	L={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=1, y=-1} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1}, {x=1, y=1} },
+		{ {x=0, y=0}, {x=1, y=0}, {x=-1, y=0}, {x=-1, y=1} },
+		{ {x=0, y=0}, {x=0, y=1}, {x=0, y=-1}, {x=-1, y=-1} },
+	},
+	O={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1} },
+	},
+	S={
+		{ {x=1, y=-1}, {x=0, y=-1}, {x=0, y=0}, {x=-1, y=0} },
+		{ {x=1, y=1}, {x=1, y=0}, {x=0, y=0}, {x=0, y=-1} },
+		{ {x=-1, y=1}, {x=0, y=1}, {x=0, y=0}, {x=1, y=0} },
+		{ {x=-1, y=-1}, {x=-1, y=0}, {x=0, y=0}, {x=0, y=1} },
+	},
+	T={
+		{ {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=0, y=-1} },
+		{ {x=0, y=0}, {x=0, y=-1}, {x=0, y=1}, {x=1, y=0} },
+		{ {x=0, y=0}, {x=1, y=0}, {x=-1, y=0}, {x=0, y=1} },
+		{ {x=0, y=0}, {x=0, y=1}, {x=0, y=-1}, {x=-1, y=0} },
+	},
+	Z={
+		{ {x=-1, y=-1}, {x=0, y=-1}, {x=0, y=0}, {x=1, y=0} },
+		{ {x=1, y=-1}, {x=1, y=0}, {x=0, y=0}, {x=0, y=1} },
+		{ {x=1, y=1}, {x=0, y=1}, {x=0, y=0}, {x=-1, y=0} },
+		{ {x=-1, y=1}, {x=-1, y=0}, {x=0, y=0}, {x=0, y=-1} },
+	}
+}
+
+SRS.wallkicks_3x3 = {
+	[0]={
+		[1]={{x=-1, y=0}, {x=-1, y=-1}, {x=0, y=2}, {x=-1, y=2}},
+		[2]={{x=0, y=1}, {x=0, y=-1}},
+		[3]={{x=1, y=0}, {x=1, y=-1}, {x=0, y=2}, {x=1, y=2}},
+	},
+	[1]={
+		[0]={{x=1, y=0}, {x=1, y=1}, {x=0, y=-2}, {x=1, y=-2}},
+		[2]={{x=1, y=0}, {x=1, y=1}, {x=0, y=-2}, {x=1, y=-2}},
+		[3]={{x=0, y=1}, {x=0, y=-1}},
+	},
+	[2]={
+		[0]={{x=0, y=1}, {x=0, y=-1}},
+		[1]={{x=-1, y=0}, {x=-1, y=-1}, {x=0, y=2}, {x=-1, y=2}},
+		[3]={{x=1, y=0}, {x=1, y=-1}, {x=0, y=2}, {x=1, y=2}},
+	},
+	[3]={
+		[0]={{x=-1, y=0}, {x=-1, y=1}, {x=0, y=-2}, {x=-1, y=-2}},
+		[1]={{x=0, y=1}, {x=0, y=-1}},
+		[2]={{x=-1, y=0}, {x=-1, y=1}, {x=0, y=-2}, {x=-1, y=-2}},
+	},
+};
+
+SRS.wallkicks_line = {
+	[0]={
+		[1]={{x=-2, y=0}, {x=1, y=0}, {x=-2, y=1}, {x=1, y=-2}},
+		[2]={},
+		[3]={{x=-1, y=0}, {x=2, y=0}, {x=-1, y=-2}, {x=2, y=1}},
+	},
+	[1]={
+		[0]={{x=2, y=0}, {x=-1, y=0}, {x=2, y=-1}, {x=-1, y=2}},
+		[2]={{x=-1, y=0}, {x=2, y=0}, {x=-1, y=-2}, {x=2, y=1}},
+		[3]={{x=0, y=1}, {x=0, y=-1}, {x=0, y=2}, {x=0, y=-2}},
+	},
+	[2]={
+		[0]={},
+		[1]={{x=1, y=0}, {x=-2, y=0}, {x=1, y=2}, {x=-2, y=-1}},
+		[3]={{x=2, y=0}, {x=-1, y=0}, {x=2, y=-1}, {x=-1, y=2}},
+	},
+	[3]={
+		[0]={{x=1, y=0}, {x=-2, y=0}, {x=1, y=2}, {x=-2, y=-1}},
+		[1]={{x=0, y=1}, {x=0, y=-1}, {x=0, y=2}, {x=0, y=-2}},
+		[2]={{x=-2, y=0}, {x=1, y=0}, {x=-2, y=1}, {x=1, y=-2}},
+	},
+};
+
+-- Component functions.
+
+function SRS:attemptWallkicks(piece, new_piece, rot_dir, grid)
+
+	local kicks
+	if piece.shape == "O" then
+		return
+	elseif 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 SRS:onPieceCreate(piece, grid)
+	piece.manipulations = 0
+end
+
+function SRS:onPieceDrop(piece, grid)
+	piece.lock_delay = 0 -- step reset
+end
+
+function SRS:onPieceMove(piece, grid)
+	piece.lock_delay = 0 -- move reset
+	if piece:isDropBlocked(grid) then
+		piece.manipulations = piece.manipulations + 1
+		if piece.manipulations >= 8 then
+			piece.locked = true
+		end
+	end
+end
+
+function SRS:onPieceRotate(piece, grid)
+	piece.lock_delay = 0 -- rotate reset
+	if piece:isDropBlocked(grid) then
+		piece.manipulations = piece.manipulations + 1
+		if piece.manipulations >= 8 then
+			piece.locked = true
+		end
+	end
+end
+
+return SRS