afterLineClear func added and splits time draw fix

it's already handled by the rulesets anyhow

README.md

@@ -1,16 +1,11 @@
-![Cambridge Banner](https://cdn.discordapp.com/attachments/764432435802013709/767724895076614154/cambridge_logo_lt.png)
-
-Important notice
-================
-
-![Tetra Online Notice](https://pbs.twimg.com/media/Eo3CkIHW8AEoK_U?format=png&name=small)
+![Cambridge Banner](https://t-sp.in/public/img/cambridge.png)
 
 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), [joezeng](https://github.com/joezeng) and [Oshisaure](https://github.com/oshisaure)!
+The project is written and maintained exclusively by [SashLilac](https://github.com/SashLilac), [joezeng](https://github.com/joezeng) and [Oshisaure](https://github.com/oshisaure)!
 
 Join our Discord server for help and a welcoming community! https://discord.gg/mteMJw4
 
@@ -45,7 +40,13 @@ Playing the game
 
 You do not need LÖVE on Windows, as it comes bundled with the program.  
 
-To get the stable release, simply download the ZIP in the latest release. All assets needed are bundled with the executable.
+#### Stable release
+
+To get the stable release, simply download either `cambridge-win32.zip` (32-bit) or `cambridge-windows.zip` (64-bit) in the [latest release](https://github.com/sashlilac/cambridge/releases/latest).  
+
+All assets needed are bundled with the executable.
+
+#### Bleeding edge
 
 If you want the bleeding edge version, download [this](https://github.com/SashLilac/cambridge/archive/master.zip).
 
@@ -65,6 +66,14 @@ Then, check the mod pack section at the bottom of this page.
 
 If you haven't already, install `love` with your favourite package manager (Homebrew on macOS, your system's default on Linux). **Make sure you're using LÖVE 11, because it won't work with earlier versions!**
 
+#### Downloading a release
+
+You can download the .love file in the latest release, and run it with:
+
+    love cambridge.love
+
+#### Installing from source
+
 Clone the repository in git:
 
 	git clone https://github.com/SashLilac/cambridge
@@ -79,11 +88,7 @@ It should run automatically!
 
 ## Installing modpacks
 
-Simply drag your mode, ruleset, and randomizer Lua files into their respective [directory](https://love2d.org/wiki/love.filesystem), and they should appear automatically.  
-
-**WARNING:** The .exe / .love files and the bleeding edge releases have different save directories. Read the above link carefully!
-
-For more detailed instructions, install [this](https://github.com/SashLilac/cambridge-modpack) mod pack to get a taste of the mod potential.
+For instructions on how to install modpacks, go to [this](https://github.com/SashLilac/cambridge-modpack) mod pack to get a taste of the mod potential.
 
 License
 -------

SOURCES.md

@@ -140,3 +140,33 @@ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 OTHER DEALINGS IN THE SOFTWARE.
+
+bigint.lua (https://github.com/empyreuma/bigint.lua)
+--------------------
+
+3-Clause BSD License
+
+Copyright (c) Emily "empyreuma" 2016
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the <organization> nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

docs/gamemodes.md

@@ -3,19 +3,11 @@ Game modes
 
 There are several classes of game modes. The modes that originate from other games are organized by suffix:
 
-* The "C" series stand for "Classic" games, games that were produced before around 1992-1993 and generally have no wallkicks or lock delay.
-	* C84 - The original version from the Electronika 60.
-	* C88 - Sega Tetris.
-	* C89 - Nintendo / NES Tetris.
 * The "A" series stand for "Arika" games, or games in the Tetris the Grand Master series.
 	* A1 - Tetris The Grand Master (the original from 1998).
 	* A2 - Tetris The Absolute The Grand Master 2 PLUS.
 	* A3 - Tetris The Grand Master 3 Terror-Instinct.
 	* AX - Tetris The Grand Master ACE (X for Xbox).
-* The "G" series stand for "Guideline" games, or games that follow the Tetris Guideline.
-	* GF - Tetris Friends (2007-2019)
-	* GJ - Tetris Online Japan (2005-2011)
-* N stands for Nullpomino, only used for Phantom Mania N.
 
 MARATHON
 --------
@@ -28,8 +20,6 @@ From other games:
 * **MARATHON A1**: Tetris the Grand Master 1.
 * **MARATHON A2**: Tetris the Grand Master 2 (TAP Master).
 * **MARATHON A3**: Tetris the Grand Master 3 (no exams).
-* **MARATHON AX4**: Another mode from TGM Ace.
-* **MARATHON C89**: Nintendo NES Tetris. Can you transition and make it to the killscreen?
 
 
 SURVIVAL
@@ -43,14 +33,7 @@ From other games:
 * **SURVIVAL A1**: 20G mode from Tetris the Grand Master.
 * **SURVIVAL A2**: T.A. Death.
 * **SURVIVAL A3**: Ti Shirase.
-
-
-RACE
-----
-
-Modes with no levels, just a single timed goal.
-
-* **Race 40**: How fast can you clear 40 lines? No limits, no holds barred.
+* **SURVIVAL AX**: Another mode from TGM Ace.
 
 
 PHANTOM MANIA
@@ -69,8 +52,4 @@ OTHER MODES
 
 * **Strategy**: How well can you plan ahead your movements? Can you handle only having a short time to place each piece?
 
-* **TetrisGram™ Pacer Test**: is a multi-stage piece-placing ability test that progressively gets more difficult as it continues.
-
-* **Interval Training**: 30 seconds per section. 20G. 15 frames of lock delay. How long can you last?
-
-* **Demon Mode**: An original mode from Oshisaure! Can you push through the ever faster levels and not get denied?
+* **Big A2**: Marathon A2 but all the pieces are BIG!

funcs.lua

@@ -56,9 +56,19 @@ 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
+	local s
+	if type(number) == "number" then
+		s = string.format("%d", number)
+	elseif type(number) == "string" then
+		if not tonumber(number) then
+			return
+		else
+			s = number
+		end
+	else
+		return
+	end
+	local pos = Mod1(string.len(s), 3)
 	return string.sub(s, 1, pos)
 		.. string.gsub(string.sub(s, pos+1), "(...)", ",%1")
 end
@@ -67,3 +77,16 @@ function Mod1(n, m)
 	-- returns a number congruent to n modulo m in the range [1;m] (as opposed to [0;m-1])
 	return ((n-1) % m) + 1
 end
+
+function table.contains(table, element)
+	for _, value in pairs(table) do
+	  	if value == element then
+			return true
+	  	end
+	end
+	return false
+end
+
+function clamp(a, b, c)
+	return math.min(a, math.max(b, c))
+end

libs/bigint/bigint.lua

@@ -0,0 +1,547 @@
+#!/usr/bin/env lua
+-- If this variable is true, then strict type checking is performed for all
+-- operations. This may result in slower code, but it will allow you to catch
+-- errors and bugs earlier.
+local strict = true
+
+--------------------------------------------------------------------------------
+
+local bigint = {}
+
+local named_powers = require("libs.bigint.named-powers-of-ten")
+
+-- Create a new bigint or convert a number or string into a big
+-- Returns an empty, positive bigint if no number or string is given
+function bigint.new(num)
+    local self = {
+        sign = "+",
+        digits = {}
+    }
+
+    -- Return a new bigint with the same sign and digits
+    function self:clone()
+        local newint = bigint.new()
+        newint.sign = self.sign
+        for _, digit in pairs(self.digits) do
+            newint.digits[#newint.digits + 1] = digit
+        end
+        return newint
+    end
+
+    setmetatable(self, {
+        __add = function(lhs, rhs)
+            return bigint.add(lhs, rhs)
+        end,
+        __unm = function()
+            if (self.sign == "+") then
+                self.sign = "-"
+            else
+                self.sign = "+"
+            end
+            return self
+        end,
+        __sub = function(lhs, rhs)
+            return bigint.subtract(lhs, rhs)
+        end,
+        __mul = function(lhs, rhs)
+            return bigint.multiply(lhs, rhs)
+        end,
+        __div = function(lhs, rhs)
+            return bigint.divide(lhs, rhs)
+        end,
+        __mod = function(lhs, rhs)
+            return bigint.modulus(lhs, rhs)
+        end,
+        __pow = function(lhs, rhs)
+            return bigint.exponentiate(lhs, rhs)
+        end,
+        __tostring = function()
+            return bigint.unserialize(self, "s")
+        end
+    })
+
+    if (num) then
+        local num_string = tostring(num)
+        for digit in string.gmatch(num_string, "[0-9]") do
+            table.insert(self.digits, tonumber(digit))
+        end
+        if string.sub(num_string, 1, 1) == "-" then
+            self.sign = "-"
+        end
+    end
+
+    return self
+end
+
+-- Check the type of a big
+-- Normally only runs when global variable "strict" == true, but checking can be
+-- forced by supplying "true" as the second argument.
+function bigint.check(big, force)
+    if (strict or force) then
+        assert(#big.digits > 0, "bigint is empty")
+        assert(type(big.sign) == "string", "bigint is unsigned")
+        for _, digit in pairs(big.digits) do
+            assert(type(digit) == "number", digit .. " is not a number")
+            assert(digit <= 9 and digit >= 0, digit .. " is not between 0 and 9")
+            assert(math.floor(digit) == digit, digit .. " is not an integer")
+        end
+    end
+    return true
+end
+
+-- Return a new big with the same digits but with a positive sign (absolute
+-- value)
+function bigint.abs(big)
+    bigint.check(big)
+    local result = big:clone()
+    result.sign = "+"
+    return result
+end
+
+-- Return the number of digits in the big
+function bigint.digits(big)
+    bigint.check(big)
+    return #big.digits
+end
+
+-- Convert a big to a number or string
+function bigint.unserialize(big, output_type, precision)
+    bigint.check(big)
+
+    local num = ""
+    if big.sign == "-" then
+        num = "-"
+    end
+
+
+    if ((output_type == nil)
+    or (output_type == "number")
+    or (output_type == "n")
+    or (output_type == "string")
+    or (output_type == "s")) then
+        -- Unserialization to a string or number requires reconstructing the
+        -- entire number
+
+        for _, digit in pairs(big.digits) do
+            num = num .. math.floor(digit) -- lazy way of getting rid of .0$
+        end
+
+        if ((output_type == nil)
+        or (output_type == "number")
+        or (output_type == "n")) then
+            return tonumber(num)
+        else
+            return num
+        end
+
+    else
+        -- Unserialization to human-readable form or scientific notation only
+        -- requires reading the first few digits
+        if (precision == nil) then
+            precision = math.min(#big.digits, 3)
+        else
+            assert(precision > 0, "Precision cannot be less than 1")
+            assert(math.floor(precision) == precision,
+                   "Precision must be a positive integer")
+        end
+
+        -- num is the first (precision + 1) digits, the first being separated by
+        -- a decimal point from the others
+        num = num .. math.floor(big.digits[1])
+        if (precision > 1) then
+            num = num .. "."
+            for i = 1, (precision - 1) do
+                num = num .. math.floor(big.digits[i + 1])
+            end
+        end
+
+        if ((output_type == "human-readable")
+        or (output_type == "human")
+        or (output_type == "h"))
+        and (#big.digits >= 3 and #big.digits <= 10002) then
+            -- Human-readable output contributed by 123eee555
+
+            local name
+            local walkback = 0 -- Used to enumerate "ten", "hundred", etc
+
+            -- Walk backwards in the index of named_powers starting at the
+            -- number of digits of the input until the first value is found
+            for i = (#big.digits - 1), (#big.digits - 4), -1 do
+                name = named_powers[i]
+                if (name) then
+                    if (walkback == 1) then
+                        name = "ten " .. name
+                    elseif (walkback == 2) then
+                        name = "hundred " .. name
+                    end
+                    break
+                else
+                    walkback = walkback + 1
+                end
+            end
+
+            return num .. " " .. name
+
+        else
+            return num .. "*10^" .. (#big.digits - 1)
+        end
+
+    end
+end
+
+-- Basic comparisons
+-- Accepts symbols (<, >=, ~=) and Unix shell-like options (lt, ge, ne)
+function bigint.compare(big1, big2, comparison)
+    bigint.check(big1)
+    bigint.check(big2)
+
+    local greater = false -- If big1.digits > big2.digits
+    local equal = false
+
+    if (big1.sign == "-") and (big2.sign == "+") then
+        greater = false
+    elseif (#big1.digits > #big2.digits)
+    or ((big1.sign == "+") and (big2.sign == "-")) then
+        greater = true
+    elseif (#big1.digits == #big2.digits) then
+        -- Walk left to right, comparing digits
+        for digit = 1, #big1.digits do
+            if (big1.digits[digit] > big2.digits[digit]) then
+                greater = true
+                break
+            elseif (big2.digits[digit] > big1.digits[digit]) then
+                break
+            elseif (digit == #big1.digits)
+                   and (big1.digits[digit] == big2.digits[digit]) then
+                equal = true
+            end
+        end
+
+    end
+
+    -- If both numbers are negative, then the requirements for greater are
+    -- reversed
+    if (not equal) and (big1.sign == "-") and (big2.sign == "-") then
+        greater = not greater
+    end
+
+    return (((comparison == "<") or (comparison == "lt"))
+            and ((not greater) and (not equal)) and true)
+        or (((comparison == ">") or (comparison == "gt"))
+            and ((greater) and (not equal)) and true)
+        or (((comparison == "==") or (comparison == "eq"))
+            and (equal) and true)
+        or (((comparison == ">=") or (comparison == "ge"))
+            and (equal or greater) and true)
+        or (((comparison == "<=") or (comparison == "le"))
+            and (equal or not greater) and true)
+        or (((comparison == "~=") or (comparison == "!=") or (comparison == "ne"))
+            and (not equal) and true)
+        or false
+end
+
+-- BACKEND: Add big1 and big2, ignoring signs
+function bigint.add_raw(big1, big2)
+    bigint.check(big1)
+    bigint.check(big2)
+
+    local result = bigint.new()
+    local max_digits = 0
+    local carry = 0
+
+    if (#big1.digits >= #big2.digits) then
+        max_digits = #big1.digits
+    else
+        max_digits = #big2.digits
+    end
+
+    -- Walk backwards right to left, like in long addition
+    for digit = 0, max_digits - 1 do
+        local sum = (big1.digits[#big1.digits - digit] or 0)
+                  + (big2.digits[#big2.digits - digit] or 0)
+                  + carry
+
+        if (sum >= 10) then
+            carry = 1
+            sum = sum - 10
+        else
+            carry = 0
+        end
+
+        result.digits[max_digits - digit] = sum
+    end
+
+    -- Leftover carry in cases when #big1.digits == #big2.digits and sum > 10, ex. 7 + 9
+    if (carry == 1) then
+        table.insert(result.digits, 1, 1)
+    end
+
+    return result
+
+end
+
+-- BACKEND: Subtract big2 from big1, ignoring signs
+function bigint.subtract_raw(big1, big2)
+    -- Type checking is done by bigint.compare
+    assert(bigint.compare(bigint.abs(big1), bigint.abs(big2), ">="),
+           "Size of " .. bigint.unserialize(big1, "string") .. " is less than "
+           .. bigint.unserialize(big2, "string"))
+
+    local result = big1:clone()
+    local max_digits = #big1.digits
+    local borrow = 0
+
+    -- Logic mostly copied from bigint.add_raw ---------------------------------
+    -- Walk backwards right to left, like in long subtraction
+    for digit = 0, max_digits - 1 do
+        local diff = (big1.digits[#big1.digits - digit] or 0)
+                   - (big2.digits[#big2.digits - digit] or 0)
+                   - borrow
+
+        if (diff < 0) then
+            borrow = 1
+            diff = diff + 10
+        else
+            borrow = 0
+        end
+
+        result.digits[max_digits - digit] = diff
+    end
+    ----------------------------------------------------------------------------
+
+
+    -- Strip leading zeroes if any, but not if 0 is the only digit
+    while (#result.digits > 1) and (result.digits[1] == 0) do
+        table.remove(result.digits, 1)
+    end
+
+    return result
+end
+
+-- FRONTEND: Addition and subtraction operations, accounting for signs
+function bigint.add(big1, big2)
+    -- Type checking is done by bigint.compare
+
+    local result
+
+    -- If adding numbers of different sign, subtract the smaller sized one from
+    -- the bigger sized one and take the sign of the bigger sized one
+    if (big1.sign ~= big2.sign) then
+        if (bigint.compare(bigint.abs(big1), bigint.abs(big2), ">")) then
+            result = bigint.subtract_raw(big1, big2)
+            result.sign = big1.sign
+        else
+            result = bigint.subtract_raw(big2, big1)
+            result.sign = big2.sign
+        end
+
+    elseif (big1.sign == "+") and (big2.sign == "+") then
+        result = bigint.add_raw(big1, big2)
+
+    elseif (big1.sign == "-") and (big2.sign == "-") then
+        result = bigint.add_raw(big1, big2)
+        result.sign = "-"
+    end
+
+    return result
+end
+function bigint.subtract(big1, big2)
+    -- Type checking is done by bigint.compare in bigint.add
+    -- Subtracting is like adding a negative
+    local big2_local = big2:clone()
+    if (big2.sign == "+") then
+        big2_local.sign = "-"
+    else
+        big2_local.sign = "+"
+    end
+    return bigint.add(big1, big2_local)
+end
+
+-- BACKEND: Multiply a big by a single digit big, ignoring signs
+function bigint.multiply_single(big1, big2)
+    bigint.check(big1)
+    bigint.check(big2)
+    assert(#big2.digits == 1, bigint.unserialize(big2, "string")
+                              .. " has more than one digit")
+
+    local result = bigint.new()
+    local carry = 0
+
+    -- Logic mostly copied from bigint.add_raw ---------------------------------
+    -- Walk backwards right to left, like in long multiplication
+    for digit = 0, #big1.digits - 1 do
+        local this_digit = big1.digits[#big1.digits - digit]
+                         * big2.digits[1]
+                         + carry
+
+        if (this_digit >= 10) then
+            carry = math.floor(this_digit / 10)
+            this_digit = this_digit - (carry * 10)
+        else
+            carry = 0
+        end
+
+        result.digits[#big1.digits - digit] = this_digit
+    end
+
+    -- Leftover carry in cases when big1.digits[1] * big2.digits[1] > 0
+    if (carry > 0) then
+        table.insert(result.digits, 1, carry)
+    end
+    ----------------------------------------------------------------------------
+
+    return result
+end
+
+-- FRONTEND: Multiply two bigs, accounting for signs
+function bigint.multiply(big1, big2)
+    -- Type checking done by bigint.multiply_single
+
+    local result = bigint.new(0)
+    local larger, smaller -- Larger and smaller in terms of digits, not size
+
+    if (bigint.unserialize(big1) == 0) or (bigint.unserialize(big2) == 0) then
+        return result
+    end
+
+    if (#big1.digits >= #big2.digits) then
+        larger = big1
+        smaller = big2
+    else
+        larger = big2
+        smaller = big1
+    end
+
+    -- Walk backwards right to left, like in long multiplication
+    for digit = 0, #smaller.digits - 1 do
+        -- Sorry for going over column 80! There's lots of big names here
+        local this_digit_product = bigint.multiply_single(larger,
+                                                          bigint.new(smaller.digits[#smaller.digits - digit]))
+
+        -- "Placeholding zeroes"
+        if (digit > 0) then
+            for placeholder = 1, digit do
+                table.insert(this_digit_product.digits, 0)
+            end
+        end
+
+        result = bigint.add(result, this_digit_product)
+    end
+
+    if (larger.sign == smaller.sign) then
+        result.sign = "+"
+    else
+        result.sign = "-"
+    end
+
+    return result
+end
+
+-- Raise a big to a positive integer or big power (TODO: negative integer power)
+function bigint.exponentiate(big, power)
+    -- Type checking for big done by bigint.multiply
+    assert(bigint.compare(power, bigint.new(0), ">="),
+           " negative powers are not supported")
+    local exp = power:clone()
+
+    if (bigint.compare(exp, bigint.new(0), "==")) then
+        return bigint.new(1)
+    elseif (bigint.compare(exp, bigint.new(1), "==")) then
+        return big:clone()
+    else
+        local result = bigint.new(1)
+        local base = big:clone()
+
+        while (true) do
+            if (bigint.compare(
+                bigint.modulus(exp, bigint.new(2)), bigint.new(1), "=="
+            )) then
+                result = bigint.multiply(result, base)
+            end
+            if (bigint.compare(exp, bigint.new(1), "==")) then
+                break
+            else
+                exp = bigint.divide(exp, bigint.new(2))
+                base = bigint.multiply(base, base)
+            end
+        end
+
+        return result
+    end
+
+end
+
+-- BACKEND: Divide two bigs (decimals not supported), returning big result and
+-- big remainder
+-- WARNING: Only supports positive integers
+function bigint.divide_raw(big1, big2)
+    -- Type checking done by bigint.compare
+    if (bigint.compare(big1, big2, "==")) then
+        return bigint.new(1), bigint.new(0)
+    elseif (bigint.compare(big1, big2, "<")) then
+        return bigint.new(0), big1:clone()
+    else
+        assert(bigint.compare(big2, bigint.new(0), "!="), "error: divide by zero")
+        assert(big1.sign == "+", "error: big1 is not positive")
+        assert(big2.sign == "+", "error: big2 is not positive")
+
+        local result = bigint.new()
+
+        local dividend = bigint.new() -- Dividend of a single operation
+
+        local neg_zero = bigint.new(0)
+        neg_zero.sign = "-"
+
+        for i = 1, #big1.digits do
+            -- Fixes a negative zero bug
+            if (#dividend.digits ~= 0) and (bigint.compare(dividend, neg_zero, "==")) then
+                dividend = bigint.new()
+            end
+            
+            table.insert(dividend.digits, big1.digits[i])
+            
+            local factor = bigint.new(0)
+            while bigint.compare(dividend, big2, ">=") do
+                dividend = bigint.subtract(dividend, big2)
+                factor = bigint.add(factor, bigint.new(1))
+            end
+
+            for i = 0, #factor.digits - 1 do
+                result.digits[#result.digits + 1 - i] = factor.digits[i + 1]
+            end
+        end
+
+        -- Remove leading zeros from result
+        while (result.digits[1] == 0) do
+            table.remove(result.digits, 1)
+        end
+
+        return result, dividend
+    end
+end
+
+-- FRONTEND: Divide two bigs (decimals not supported), returning big result and
+-- big remainder, accounting for signs
+function bigint.divide(big1, big2)
+    local result, remainder = bigint.divide_raw(bigint.abs(big1),
+                                                bigint.abs(big2))
+    if (big1.sign == big2.sign) then
+        result.sign = "+"
+    else
+        result.sign = "-"
+    end
+
+    return result, remainder
+end
+
+-- FRONTEND: Return only the remainder from bigint.divide
+function bigint.modulus(big1, big2)
+    local result, remainder = bigint.divide(big1, big2)
+
+    -- Remainder will always have the same sign as the dividend per C standard
+    -- https://en.wikipedia.org/wiki/Modulo_operation#Remainder_calculation_for_the_modulo_operation
+    remainder.sign = big1.sign
+    return remainder
+end
+
+return bigint

load/bigint.lua

@@ -0,0 +1,2 @@
+bigint = require "libs.bigint.bigint"
+number_names = require "libs.bigint.named-powers-of-ten"

load/graphics.lua

@@ -61,6 +61,11 @@ blocks = {
 		F = love.graphics.newImage("res/img/gem9.png"),
 		A = love.graphics.newImage("res/img/gem9.png"),
 		X = love.graphics.newImage("res/img/gem9.png"),
+	},
+	["square"] = {
+		F = love.graphics.newImage("res/img/squares.png"),
+		Y = love.graphics.newImage("res/img/squareg.png"),
+		X = love.graphics.newImage("res/img/squares.png"),
 	}
 }
 

main.lua

@@ -7,6 +7,7 @@ function love.load()
 	require "load.sounds"
 	require "load.bgm"
 	require "load.save"
+	require "load.bigint"
 	loadSave()
 	require "scene"
 	--config["side_next"] = false
@@ -15,8 +16,13 @@ function love.load()
 
 	love.window.setMode(love.graphics.getWidth(), love.graphics.getHeight(), {resizable = true});
     
+    -- used for screenshots
+    GLOBAL_CANVAS = love.graphics.newCanvas()
+
+	-- init config
 	if not config.das then config.das = 10 end
 	if not config.arr then config.arr = 2 end
+	if not config.dcd then config.dcd = 0 end
 	if not config.sfx_volume then config.sfx_volume = 0.5 end
 	if not config.bgm_volume then config.bgm_volume = 0.5 end
 	
@@ -105,6 +111,9 @@ function love.update(dt)
 end
 
 function love.draw()
+    love.graphics.setCanvas(GLOBAL_CANVAS)
+    love.graphics.clear()
+	
     love.graphics.push()
 
 	-- get offset matrix
@@ -120,6 +129,10 @@ function love.draw()
     
 	scene:render()
 	love.graphics.pop()
+    
+    love.graphics.setCanvas()
+    love.graphics.setColor(1,1,1,1)
+    love.graphics.draw(GLOBAL_CANVAS)
 end
 
 function love.keypressed(key, scancode)
@@ -137,6 +150,14 @@ function love.keypressed(key, scancode)
 		scene.restart_message = true
 		if config.secret then playSE("mode_decide")
 		else playSE("erase") end
+    -- f12 is reserved for saving screenshots
+    elseif scancode == "f12" then
+        local ss_name = os.date("ss/%Y-%m-%d_%H-%M-%S.png")
+        if not love.filesystem.getInfo("ss") then
+            love.filesystem.createDirectory("ss")
+        end
+        print("Saving screenshot as "..ss_name)
+        GLOBAL_CANVAS:newImageData():encode("png", ss_name)
 	-- function keys are reserved
 	elseif string.match(scancode, "^f[1-9]$") or string.match(scancode, "^f[1-9][0-9]+$") then
 		return	
@@ -258,3 +279,8 @@ function love.focus(f)
 		pauseBGM()
 	end
 end
+
+function love.resize(w, h)
+    GLOBAL_CANVAS:release()
+    GLOBAL_CANVAS = love.graphics.newCanvas(w, h)
+end

package.bat

@@ -1,2 +1,2 @@
-tar -a -c -f cambridge.zip libs/binser.lua libs/classic.lua libs/simple-slider.lua libs/discordRPC.lua load res scene tetris conf.lua main.lua scene.lua funcs.lua
+tar -a -c -f cambridge.zip libs load res scene tetris conf.lua main.lua scene.lua funcs.lua
 rename cambridge.zip cambridge.love

scene/credits.lua

@@ -8,7 +8,9 @@ function CreditsScene:new()
 end
 
 function CreditsScene:update()
+    if love.window.hasFocus() then
         self.frames = self.frames + 1
+    end
     if self.frames >= 4200 then
         playSE("mode_decide")
         scene = TitleScene()

scene/game.lua

@@ -4,12 +4,13 @@ GameScene.title = "Game"
 
 require 'load.save'
 
-function GameScene:new(game_mode, ruleset)
+function GameScene:new(game_mode, ruleset, inputs)
 	self.retry_mode = game_mode
 	self.retry_ruleset = ruleset
-	self.game = game_mode()
+	self.secret_inputs = copy(inputs)
+	self.game = game_mode(self.secret_inputs)
 	self.ruleset = ruleset()
-	self.game:initialize(self.ruleset)
+	self.game:initialize(self.ruleset, self.secret_inputs)
 	self.inputs = {
 		left=false,
 		right=false,
@@ -49,11 +50,40 @@ function GameScene:render()
 	)
 
 	-- game frame
+	if self.game.grid.width == 10 and self.game.grid.height == 24 then
 		love.graphics.draw(misc_graphics["frame"], 48, 64)
+	end
+	
 	love.graphics.setColor(0, 0, 0, 200)
-	love.graphics.rectangle("fill", 64, 80, 160, 320)
+	love.graphics.rectangle(
+		"fill", 64, 80,
+		16 * self.game.grid.width, 16 * (self.game.grid.height - 4)
+	)
+	
+	if self.game.grid.width ~= 10 or self.game.grid.height ~= 24 then
+		love.graphics.setColor(174/255, 83/255, 76/255, 1)
+		love.graphics.setLineWidth(8)
+		love.graphics.line(
+			60,76,
+			68+16*self.game.grid.width,76,
+			68+16*self.game.grid.width,84+16*(self.game.grid.height-4),
+			60,84+16*(self.game.grid.height-4),
+			60,76
+		)
+		love.graphics.setColor(203/255, 137/255, 111/255, 1)
+		love.graphics.setLineWidth(4)
+		love.graphics.line(
+			60,76,
+			68+16*self.game.grid.width,76,
+			68+16*self.game.grid.width,84+16*(self.game.grid.height-4),
+			60,84+16*(self.game.grid.height-4),
+			60,76
+		)
+		love.graphics.setLineWidth(1)
+	end
 
 	self.game:drawGrid()
+	if self.game.lcd > 0 then self.game:drawLineClearAnimation() end
 	self.game:drawPiece()
 	self.game:drawNextQueue(self.ruleset)
 	self.game:drawScoringInfo()
@@ -75,16 +105,23 @@ function GameScene:render()
 
 	love.graphics.setFont(font_3x5_3)
 	if self.paused then love.graphics.print("PAUSED!", 80, 100) end
+
+	if self.game.completed then
+		self.game:onGameComplete()
+	elseif self.game.game_over then
+		self.game:onGameOver()
+	end
 end
 
 function GameScene:onInputPress(e)
-	if self.game.completed and (e.input == "menu_decide" or e.input == "menu_back" or e.input == "retry") then
+	if (self.game.game_over or self.game.completed) and (e.input == "menu_decide" or e.input == "menu_back" or e.input == "retry") then
 		highscore_entry = self.game:getHighscoreData()
 		highscore_hash = self.game.hash .. "-" .. self.ruleset.hash
 		submitHighscore(highscore_hash, highscore_entry)
-		scene = e.input == "retry" and GameScene(self.retry_mode, self.retry_ruleset) or ModeSelectScene()
+		scene = e.input == "retry" and GameScene(self.retry_mode, self.retry_ruleset, self.secret_inputs) or ModeSelectScene()
 	elseif e.input == "retry" then
-		scene = GameScene(self.retry_mode, self.retry_ruleset)
+		switchBGM(nil)
+		scene = GameScene(self.retry_mode, self.retry_ruleset, self.secret_inputs)
 	elseif e.input == "pause" and not (self.game.game_over or self.game.completed) then
 		self.paused = not self.paused
 		if self.paused then pauseBGM()

scene/game_config.lua

@@ -11,11 +11,13 @@ ConfigScene.options = {
 	{"manlock", "Manual Locking", false, {"Per ruleset", "Per gamemode", "Harddrop", "Softdrop"}},
 	{"piece_colour", "Piece Colours", false, {"Per ruleset", "Arika", "TTC"}},
 	{"world_reverse", "A Button Rotation", false, {"Left", "Auto", "Right"}},
+	{"spawn_positions", "Spawn Positions", false, {"Per ruleset", "In field", "Out of field"}},
 	{"display_gamemode", "Display Gamemode", false, {"On", "Off"}},
 	{"das_last_key", "DAS Switch", false, {"Default", "Instant"}},
 	{"smooth_movement", "Smooth Piece Drop", false, {"On", "Off"}},
 	{"synchroes_allowed", "Synchroes", false, {"Per ruleset", "On", "Off"}},
 	{"diagonal_input", "Diagonal Input", false, {"On", "Off"}},
+	{"buffer_lock", "Buffer Lock Inputs", false, {"On", "Off"}},
 	{"sfx_volume", "SFX", true, "sfxSlider"},
 	{"bgm_volume", "BGM", true, "bgmSlider"},
 }
@@ -31,8 +33,8 @@ function ConfigScene:new()
 		state = "Changing game settings",
 	})
 
-	self.sfxSlider = newSlider(165, 375, 225, config.sfx_volume * 100, 0, 100, function(v) config.sfx_volume = v / 100 end, {width=20})
-	self.bgmSlider = newSlider(465, 375, 225, config.bgm_volume * 100, 0, 100, function(v) config.bgm_volume = v / 100 end, {width=20})
+	self.sfxSlider = newSlider(165, 400, 225, config.sfx_volume * 100, 0, 100, function(v) config.sfx_volume = v / 100 end, {width=20, knob="circle", track="roundrect"})
+	self.bgmSlider = newSlider(465, 400, 225, config.bgm_volume * 100, 0, 100, function(v) config.bgm_volume = v / 100 end, {width=20, knob="circle", track="roundrect"})
 end
 
 function ConfigScene:update()
@@ -55,9 +57,9 @@ function ConfigScene:render()
 	--Lazy check to see if we're on the SFX or BGM slider. Probably will need to be rewritten if more options get added.
 	love.graphics.setColor(1, 1, 1, 0.5)
 	if not ConfigScene.options[self.highlight][3] then
-		love.graphics.rectangle("fill", 20, 98 + self.highlight * 20, 170, 22)
+		love.graphics.rectangle("fill", 25, 98 + self.highlight * 20, 170, 22)
 	else
-		love.graphics.rectangle("fill", 65 + (1+self.highlight-#self.options) * 300, 322, 215, 33)
+		love.graphics.rectangle("fill", 65 + (1+self.highlight-#self.options) * 300, 342, 215, 33)
 	end
 	
 	love.graphics.setFont(font_3x5_2)
@@ -74,8 +76,8 @@ function ConfigScene:render()
 
 	love.graphics.setColor(1, 1, 1, 1)
 	love.graphics.setFont(font_3x5_3)
-	love.graphics.print("SFX Volume: " .. math.floor(self.sfxSlider:getValue()) .. "%", 75, 325)
-	love.graphics.print("BGM Volume: " .. math.floor(self.bgmSlider:getValue()) .. "%", 375, 325)
+	love.graphics.print("SFX Volume: " .. math.floor(self.sfxSlider:getValue()) .. "%", 75, 345)
+	love.graphics.print("BGM Volume: " .. math.floor(self.bgmSlider:getValue()) .. "%", 375, 345)
 
 	love.graphics.setColor(1, 1, 1, 0.75)
 	self.sfxSlider:draw()
@@ -101,7 +103,7 @@ function ConfigScene:onInputPress(e)
 		else
 			playSE("cursor")
 			sld = self[self.options[self.highlight][4]]
-			sld.value = math.max(sld.min, math.min(sld.max, (sld:getValue() - 3) / (sld.max - sld.min)))
+			sld.value = math.max(sld.min, math.min(sld.max, (sld:getValue() - 5) / (sld.max - sld.min)))
 		end
 	elseif e.input == "right" or e.scancode == "right" then
 		if not self.options[self.highlight][3] then
@@ -111,7 +113,7 @@ function ConfigScene:onInputPress(e)
 		else
 			playSE("cursor")
 			sld = self[self.options[self.highlight][4]]
-			sld.value = math.max(sld.min, math.min(sld.max, (sld:getValue() + 3) / (sld.max - sld.min)))--math.max(0, (math.floor(sld:getValue())+2)/(sld.max-sld.min))
+			sld.value = math.max(sld.min, math.min(sld.max, (sld:getValue() + 5) / (sld.max - sld.min)))--math.max(0, (math.floor(sld:getValue())+2)/(sld.max-sld.min))
 		end
 	elseif e.input == "menu_back" or e.scancode == "delete" or e.scancode == "backspace" then
 		loadSave()

scene/mode_select.lua

@@ -11,6 +11,14 @@ function ModeSelectScene:new()
 		ruleset = current_ruleset,
 		select = "mode",
 	}
+	self.secret_inputs = {
+		rotate_left = false,
+		rotate_left2 = false,
+		rotate_right = false,
+		rotate_right2 = false,
+		rotate_180 = false,
+		hold = false,
+	}
 	DiscordRPC:update({
 		details = "In menus",
 		state = "Choosing a mode",
@@ -67,7 +75,7 @@ function ModeSelectScene:onInputPress(e)
 		config.current_ruleset = current_ruleset
 		playSE("mode_decide")
 		saveConfig()
-		scene = GameScene(game_modes[self.menu_state.mode], rulesets[self.menu_state.ruleset])
+		scene = GameScene(game_modes[self.menu_state.mode], rulesets[self.menu_state.ruleset], self.secret_inputs)
 	elseif e.input == "up" or e.scancode == "up" then
 		self:changeOption(-1)
 		playSE("cursor")
@@ -79,6 +87,14 @@ function ModeSelectScene:onInputPress(e)
 		playSE("cursor_lr")
 	elseif e.input == "menu_back" or e.scancode == "delete" or e.scancode == "backspace" then
 		scene = TitleScene()
+	elseif e.input then
+		self.secret_inputs[e.input] = true
+	end
+end
+
+function ModeSelectScene:onInputRelease(e)
+	if e.input == "hold" or (e.input and string.sub(e.input, 1, 7) == "rotate_") then
+		self.secret_inputs[e.input] = false
 	end
 end
 

scene/title.lua

@@ -72,6 +72,7 @@ function TitleScene:render()
 	)
 	love.graphics.print("Happy Holidays!", 320, -100 + self.y_offset)
 
+	love.graphics.setColor(1, 1, 1, 1)
 	love.graphics.print(self.restart_message and "Restart Cambridge..." or "", 0, 0)
 
 	love.graphics.setColor(1, 1, 1, 0.5)

scene/tuning.lua

@@ -9,6 +9,7 @@ TuningScene.options = {
 	-- Serves as a reference for the options available in the menu. Format: {name in config, name as displayed if applicable, slider name}
 	{"das", "DAS", "dasSlider"},
 	{"arr", "ARR", "arrSlider"},
+	{"dcd", "DCD", "dcdSlider"},
 }
 
 local optioncount = #TuningScene.options
@@ -20,13 +21,15 @@ function TuningScene:new()
     })
     self.highlight = 1
 
-    self.dasSlider = newSlider(290, 225, 400, config.das, 0, 20, function(v) config.das = math.floor(v) end, {width=20})
-    self.arrSlider = newSlider(290, 325, 400, config.arr, 0, 6, function(v) config.arr = math.floor(v) end, {width=20})
+    self.dasSlider = newSlider(290, 225, 400, config.das, 0, 20, function(v) config.das = math.floor(v) end, {width=20, knob="circle", track="roundrect"})
+	self.arrSlider = newSlider(290, 300, 400, config.arr, 0, 6, function(v) config.arr = math.floor(v) end, {width=20, knob="circle", track="roundrect"})
+	self.dcdSlider = newSlider(290, 375, 400, config.dcd, 0, 6, function(v) config.dcd = math.floor(v) end, {width=20, knob="circle", track="roundrect"})
 end
 
 function TuningScene:update()
     self.dasSlider:update()
 	self.arrSlider:update()
+	self.dcdSlider:update()
 end
 
 function TuningScene:render()
@@ -38,7 +41,7 @@ function TuningScene:render()
     )
 
     love.graphics.setColor(1, 1, 1, 0.5)
-    love.graphics.rectangle("fill", 75, 73 + self.highlight * 100, 400, 33)
+    love.graphics.rectangle("fill", 75, 98 + self.highlight * 75, 400, 33)
 
     love.graphics.setColor(1, 1, 1, 1)
     
@@ -50,11 +53,13 @@ function TuningScene:render()
     
     love.graphics.setFont(font_3x5_3)
     love.graphics.print("Delayed Auto-Shift (DAS): " .. math.floor(self.dasSlider:getValue()) .. "F", 80, 175)
-    love.graphics.print("Auto-Repeat Rate (ARR): " .. math.floor(self.arrSlider:getValue()) .. "F", 80, 275)
+	love.graphics.print("Auto-Repeat Rate (ARR): " .. math.floor(self.arrSlider:getValue()) .. "F", 80, 250)
+	love.graphics.print("DAS Cut Delay (DCD): " .. math.floor(self.dcdSlider:getValue()) .. "F", 80, 325)
 
     love.graphics.setColor(1, 1, 1, 0.75)
     self.dasSlider:draw()
 	self.arrSlider:draw()
+	self.dcdSlider:draw()
 end
 
 function TuningScene:onInputPress(e)

tetris/components/grid.lua

@@ -6,13 +6,15 @@ local empty = { skin = "", colour = "" }
 local oob = { skin = "", colour = "" }
 local block = { skin = "2tie", colour = "A" }
 
-function Grid:new()
+function Grid:new(width, height)
 	self.grid = {}
 	self.grid_age = {}
-	for y = 1, 24 do
+	self.width = width
+	self.height = height
+	for y = 1, self.height do
 		self.grid[y] = {}
 		self.grid_age[y] = {}
-		for x = 1, 10 do
+		for x = 1, self.width do
 			self.grid[y][x] = empty
 			self.grid_age[y][x] = 0
 		end
@@ -20,8 +22,8 @@ function Grid:new()
 end
 
 function Grid:clear()
-	for y = 1, 24 do
-		for x = 1, 10 do
+	for y = 1, self.height do
+		for x = 1, self.width do
 			self.grid[y][x] = empty
 			self.grid_age[y][x] = 0
 		end
@@ -29,7 +31,7 @@ function Grid:clear()
 end
 
 function Grid:getCell(x, y)
-	if x < 1 or x > 10 or y > 24 then return oob
+	if x < 1 or x > self.width or y > self.height then return oob
 	elseif y < 1 then return empty
 	else return self.grid[y][x]
 	end
@@ -98,89 +100,84 @@ end
 
 function Grid:getClearedRowCount()
 	local count = 0
-	for row = 1, 24 do
+	local cleared_row_table = {}
+	for row = 1, self.height do
 		if self:isRowFull(row) then
 			count = count + 1
+			table.insert(cleared_row_table, row)
 		end
 	end
-	return count
+	return count, cleared_row_table
 end
 
 function Grid:markClearedRows()
-	for row = 1, 24 do
+	local block_table = {}
+	for row = 1, self.height do
 		if self:isRowFull(row) then
-			for x = 1, 10 do
+			block_table[row] = {}
+			for x = 1, self.width do
+				block_table[row][x] = {
+					skin = self.grid[row][x].skin,
+					colour = self.grid[row][x].colour,
+				}
 				self.grid[row][x] = {
 					skin = self.grid[row][x].skin,
 					colour = "X"
 				}
+				--self.grid_age[row][x] = 0
 			end
 		end
 	end
-	return true
+	return block_table
 end
 
 function Grid:clearClearedRows()
-	for row = 1, 24 do
+	for row = 1, self.height do
 		if self:isRowFull(row) then
 			for above_row = row, 2, -1 do
 				self.grid[above_row] = self.grid[above_row - 1]
 				self.grid_age[above_row] = self.grid_age[above_row - 1]
 			end
-			self.grid[1] = {empty, empty, empty, empty, empty, empty, empty, empty, empty, empty}
-			self.grid_age[1] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+			self.grid[1] = {}
+			self.grid_age[1] = {}
+			for i = 1, self.width do
+				self.grid[1][i] = empty
+				self.grid_age[1][i] = 0
+			end
 		end
 	end
 	return true
 end
 
 function Grid:copyBottomRow()
-	for row = 1, 23 do
+	for row = 1, self.height - 1 do
 		self.grid[row] = self.grid[row+1]
 		self.grid_age[row] = self.grid_age[row+1]
 	end
-	self.grid[24] = {empty, empty, empty, empty, empty, empty, empty, empty, empty, empty}
-	self.grid_age[24] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
-	for col = 1, 10 do
-		self.grid[24][col] = (self.grid[23][col] == empty) and empty or block
+	self.grid[self.height] = {}
+	self.grid_age[self.height] = {}
+	for i = 1, self.width do
+		self.grid[self.height][i] = (self.grid[self.height - 1][i] == empty) and empty or block
+		self.grid_age[self.height][i] = 0
 	end
 	return true
 end
 
 function Grid:garbageRise(row_vals)
-		for row = 1, 23 do
+	for row = 1, self.height - 1 do
 		self.grid[row] = self.grid[row+1]
 		self.grid_age[row] = self.grid_age[row+1]
 	end
-		self.grid[24] = {empty, empty, empty, empty, empty, empty, empty, empty, empty, empty}
-		self.grid_age[24] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
-	for col = 1, 10 do
-		self.grid[24][col] = (row_vals[col] == "e") and empty or block
-	end
-end
-
-function Grid:applyFourWide()
-		for row = 1, 24 do
-				local x = self.grid[row]
-				x[1] = x[1]~=block and block or x[1]
-				x[2] = x[2]~=block and block or x[2]
-				x[3] = x[3]~=block and block or x[3]
-				x[8] = x[8]~=block and block or x[8]
-				x[9] = x[9]~=block and block or x[9]
-				x[10] = x[10]~=block and block or x[10]
-		end
-end
-
-function Grid:applyCeiling(lines)
-	for row = 1, lines do
-		for col = 1, 9 do
-			self.grid[row][col] = block
-		end
+	self.grid[self.height] = {}
+	self.grid_age[self.height] = {}
+	for i = 1, self.width do
+		self.grid[self.height][i] = (row_vals[i] == "e") and empty or block
+		self.grid_age[self.height][i] = 0
 	end
 end
 
 function Grid:clearSpecificRow(row)
-	for col = 1, 10 do
+	for col = 1, self.width do
 		self.grid[row][col] = empty
 	end
 end
@@ -194,7 +191,7 @@ 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 and y < 24 then
+		if y + 1 > 0 and y < self.height then
 			self.grid[y+1][x+1] = {
 				skin = piece.skin,
 				colour = piece.colour
@@ -210,7 +207,7 @@ 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
+				if y*2+a > 0 and y*2 < self.height then
 					self.grid[y*2+a][x*2+b] = {
 						skin = piece.skin,
 						colour = piece.colour
@@ -222,8 +219,8 @@ function Grid:applyBigPiece(piece)
 end
 
 function Grid:checkForBravo(cleared_row_count)
-	for i = 0, 23 - cleared_row_count do
-				for j = 0, 9 do
+	for i = 0, self.height - 1 - cleared_row_count do
+				for j = 0, self.width - 1 do
 						if self:isOccupied(j, i) then return false end
 				end
 		end
@@ -231,9 +228,9 @@ function Grid:checkForBravo(cleared_row_count)
 end
 
 function Grid:checkStackHeight()
-	for i = 0, 23 do
-		for j = 0, 9 do
-			if self:isOccupied(j, i) then return 24 - i end
+	for i = 0, self.height - 1 do
+		for j = 0, self.width - 1 do
+			if self:isOccupied(j, i) then return self.height - i end
 		end
 	end
 	return 0
@@ -274,8 +271,8 @@ function Grid:checkSecretGrade()
 end
 
 function Grid:hasGemBlocks()
-	for y = 1, 24 do
-		for x = 1, 10 do
+	for y = 1, self.height do
+		for x = 1, self.width do
 			if self.grid[y][x].skin == "gem" then
 				return true
 			end
@@ -286,16 +283,16 @@ end
 
 function Grid:mirror()
 	local new_grid = {}
-	for y = 1, 24 do
+	for y = 1, self.height do
 		new_grid[y] = {}
-		for x = 1, 10 do
+		for x = 1, self.width do
 			new_grid[y][x] = empty
 		end
 	end
 
-	for y = 1, 24 do
-		for x = 1, 10 do
-			new_grid[y][x] = self.grid[y][11 - x]
+	for y = 1, self.height do
+		for x = 1, self.width do
+			new_grid[y][x] = self.grid[y][self.width + 1 - x]
 		end
 	end
 	self.grid = new_grid
@@ -310,9 +307,83 @@ function Grid:applyMap(map)
 	end
 end
 
+-- inefficient algorithm for squares
+function Grid:markSquares()
+	-- goes up by 1 for silver, 2 for gold
+	local square_count = 0
+	for i = 1, 2 do
+		for y = 5, self.height - 3 do
+			for x = 1, self.width - 3 do
+				local age_table = {}
+				local age_count = 0
+				local colour_table = {}
+				local is_square = true
+				for j = 0, 3 do
+					for k = 0, 3 do
+						if self.grid[y+j][x+k].skin == "" or self.grid[y+j][x+k].skin == "square" then
+							is_square = false
+						end
+						if age_table[self.grid_age[y+j][x+k]] == nil then
+							age_table[self.grid_age[y+j][x+k]] = 1
+							age_count = age_count + 1
+						else
+							age_table[self.grid_age[y+j][x+k]] = age_table[self.grid_age[y+j][x+k]] + 1
+						end
+						if age_count > 4 or age_table[self.grid_age[y+j][x+k]] > 4 then
+							is_square = false
+						end
+						if not table.contains(colour_table, self.grid[y+j][x+k].colour) then
+							table.insert(colour_table, self.grid[y+j][x+k].colour)
+						end
+					end
+				end
+				if is_square then
+					if i == 1 and #colour_table == 1 then
+						for j = 0, 3 do
+							for k = 0, 3 do
+								self.grid[y+j][x+k].colour = "Y"
+								self.grid[y+j][x+k].skin = "square"
+							end
+						end
+						square_count = square_count + 2
+					elseif i == 2 then
+						for j = 0, 3 do
+							for k = 0, 3 do
+								self.grid[y+j][x+k].colour = "F"
+								self.grid[y+j][x+k].skin = "square"
+							end
+							
+						end
+						square_count = square_count + 1
+					end
+				end
+			end
+		end
+	end
+	return square_count
+end
+
+-- square scan
+function Grid:scanForSquares()
+	local table = {}
+	for row = 1, self.height do
+		local silver = 0
+		local gold = 0
+		for col = 1, self.width do
+			local colour = self.grid[row][col].colour
+			if self.grid[row][col].skin == "square" then
+				if colour == "Y" then gold = gold + 1
+				else silver = silver + 1 end
+			end
+		end
+		table[row] = gold * 2.5 + silver * 1.25
+	end
+	return table
+end
+
 function Grid:update()
-	for y = 1, 24 do
-		for x = 1, 10 do
+	for y = 1, self.height do
+		for x = 1, self.width do
 			if self.grid[y][x] ~= empty then
 				self.grid_age[y][x] = self.grid_age[y][x] + 1
 			end
@@ -321,33 +392,38 @@ function Grid:update()
 end
 
 function Grid:draw()
-	for y = 5, 24 do
-		for x = 1, 10 do
-			if self.grid[y][x] ~= empty then
+	for y = 5, self.height do
+		for x = 1, self.width do
+			if blocks[self.grid[y][x].skin] and
+			blocks[self.grid[y][x].skin][self.grid[y][x].colour] then
 				if self.grid_age[y][x] < 2 then
 					love.graphics.setColor(1, 1, 1, 1)
 					love.graphics.draw(blocks[self.grid[y][x].skin]["F"], 48+x*16, y*16)
 				else
 					if self.grid[y][x].skin == "bone" then
 						love.graphics.setColor(1, 1, 1, 1)
+					elseif self.grid[y][x].colour == "X" then
+						love.graphics.setColor(0, 0, 0, 0)
+						--love.graphics.setColor(0.5, 0.5, 0.5, 1 - self.grid_age[y][x] / 15)
 					else
 						love.graphics.setColor(0.5, 0.5, 0.5, 1)
 					end
 					love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
 				end
-				if self.grid[y][x].skin ~= "bone" then
+				if self.grid[y][x].skin ~= "bone" and self.grid[y][x].colour ~= "X" then
 					love.graphics.setColor(0.8, 0.8, 0.8, 1)
 					love.graphics.setLineWidth(1)
-					if y > 1 and self.grid[y-1][x] == empty then
+					if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
 						love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
 					end
-					if y < 24 and self.grid[y+1][x] == empty then
+					if y < self.height and self.grid[y+1][x] == empty or
+					(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
 						love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
 					end
 					if x > 1 and self.grid[y][x-1] == empty then
 						love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
 					end
-					if x < 10 and self.grid[y][x+1] == empty then
+					if x < self.width and self.grid[y][x+1] == empty then
 						love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
 					end
 				end
@@ -357,21 +433,28 @@ function Grid:draw()
 end
 
 function Grid:drawOutline()
-	for y = 5, 24 do
-		for x = 1, 10 do
-			if self.grid[y][x] ~= empty then
+	for y = 5, self.height do
+		for x = 1, self.width do
+			--[[
+			if self.grid[y][x].colour == "X" then
+				love.graphics.setColor(0.5, 0.5, 0.5, 1 - self.grid_age[y][x] / 15)
+				love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
+			end
+			]]
+			if self.grid[y][x] ~= empty and self.grid[y][x].colour ~= "X" then
 				love.graphics.setColor(0.8, 0.8, 0.8, 1)
 				love.graphics.setLineWidth(1)
-				if y > 1 and self.grid[y-1][x] == empty then
+				if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
 					love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
 				end
-				if y < 24 and self.grid[y+1][x] == empty then
+				if y < self.height and self.grid[y+1][x] == empty or
+				(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
 					love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
 				end
 				if x > 1 and self.grid[y][x-1] == empty then
 					love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
 				end
-				if x < 10 and self.grid[y][x+1] == empty then
+				if x < self.width and self.grid[y][x+1] == empty then
 					love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
 				end
 			end
@@ -382,11 +465,12 @@ end
 function Grid:drawInvisible(opacity_function, garbage_opacity_function, lock_flash, brightness)
 	lock_flash = lock_flash == nil and true or lock_flash
 	brightness = brightness == nil and 0.5 or brightness
-	for y = 5, 24 do
-		for x = 1, 10 do
+	for y = 5, self.height do
+		for x = 1, self.width do
 			if self.grid[y][x] ~= empty then
 				if self.grid[y][x].colour == "X" then
-					opacity = 1
+					opacity = 0
+					--opacity = 1 - self.grid_age[y][x] / 15
 				elseif garbage_opacity_function and self.grid[y][x].colour == "A" then
 					opacity = garbage_opacity_function(self.grid_age[y][x])
 				else
@@ -398,16 +482,17 @@ function Grid:drawInvisible(opacity_function, garbage_opacity_function, lock_fla
 					if opacity > 0 and self.grid[y][x].colour ~= "X" then
 						love.graphics.setColor(0.64, 0.64, 0.64)
 						love.graphics.setLineWidth(1)
-						if y > 1 and self.grid[y-1][x] == empty then
+						if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
 							love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
 						end
-						if y < 24 and self.grid[y+1][x] == empty then
+						if y < self.height and self.grid[y+1][x] == empty or
+						(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
 							love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
 						end
 						if x > 1 and self.grid[y][x-1] == empty then
 							love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
 						end
-						if x < 10 and self.grid[y][x+1] == empty then
+						if x < self.width and self.grid[y][x+1] == empty then
 							love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
 						end
 					end
@@ -426,29 +511,31 @@ function Grid:drawCustom(colour_function, gamestate)
         
         gamestate: the gamemode instance itself to pass in colour_function
     ]]
-	for y = 5, 24 do
-		for x = 1, 10 do
+	for y = 5, self.height do
+		for x = 1, self.width do
             local block = self.grid[y][x]
 			if block ~= empty then
                 local R, G, B, A, outline = colour_function(gamestate, block, x, y, self.grid_age[y][x])
 				if self.grid[y][x].colour == "X" then
-					A = 1
+					A = 0
+					--A = 1 - self.grid_age[y][x] / 15
 				end
 				love.graphics.setColor(R, G, B, A)
 				love.graphics.draw(blocks[self.grid[y][x].skin][self.grid[y][x].colour], 48+x*16, y*16)
                 if outline > 0 and self.grid[y][x].colour ~= "X" then
                     love.graphics.setColor(0.64, 0.64, 0.64, outline)
                     love.graphics.setLineWidth(1)
-                    if y > 1 and self.grid[y-1][x] == empty then
+                    if y > 5 and self.grid[y-1][x] == empty or self.grid[y-1][x].colour == "X" then
 						love.graphics.line(48.0+x*16, -0.5+y*16, 64.0+x*16, -0.5+y*16)
 					end
-                    if y < 24 and self.grid[y+1][x] == empty then
+					if y < self.height and self.grid[y+1][x] == empty or
+					(y + 1 <= self.height and self.grid[y+1][x].colour == "X") then
 						love.graphics.line(48.0+x*16, 16.5+y*16, 64.0+x*16, 16.5+y*16)
 					end
 					if x > 1 and self.grid[y][x-1] == empty then
 						love.graphics.line(47.5+x*16, -0.0+y*16, 47.5+x*16, 16.0+y*16)
 					end
-                    if x < 10 and self.grid[y][x+1] == empty then
+					if x < self.width and self.grid[y][x+1] == empty then
 						love.graphics.line(64.5+x*16, -0.0+y*16, 64.5+x*16, 16.0+y*16)
 					end
                 end

tetris/components/piece.lua

@@ -104,9 +104,8 @@ function Piece:dropToBottom(grid)
 	self:dropSquares(math.huge, grid)
 	self.gravity = 0
 	if self.position.y > piece_y then
-		-- if it got dropped any, also reset lock delay
 		if self.ghost == false then playSE("bottom") end
-		self.lock_delay = 0
+		-- self.lock_delay = 0
 	end
 	return self
 end

tetris/modes/gamemode.lua

@@ -5,14 +5,18 @@ local playedReadySE = false
 local playedGoSE = false
 
 local Grid = require 'tetris.components.grid'
-local Randomizer = require 'tetris.randomizers.randomizer'
+local Randomizer = require 'tetris.randomizers.bag7'
+local BagRandomizer = require 'tetris.randomizers.bag'
 
 local GameMode = Object:extend()
 
+GameMode.name = ""
+GameMode.hash = ""
+GameMode.tagline = ""
 GameMode.rollOpacityFunction = function(age) return 0 end
 
-function GameMode:new()
-	self.grid = Grid()
+function GameMode:new(secret_inputs)
+	self.grid = Grid(10, 24)
 	self.randomizer = Randomizer()
 	self.piece = nil
 	self.ready_frames = 100
@@ -21,6 +25,7 @@ function GameMode:new()
 	self.score = 0
 	self.level = 0
 	self.lines = 0
+	self.squares = 0
 	self.drop_bonus = 0
 	self.are = 0
 	self.lcd = 0
@@ -40,11 +45,14 @@ function GameMode:new()
 	self.enable_hard_drop = true
 	self.next_queue_length = 1
 	self.additive_gravity = true
+	self.classic_lock = false
 	self.draw_section_times = false
 	self.draw_secondary_section_times = false
 	self.big_mode = false
 	self.irs = true
 	self.ihs = true
+	self.square_mode = false
+	self.immobile_spin_bonus = false
 	self.rpc_details = "In game"
 	self.SGnames = {
 		"9", "8", "7", "6", "5", "4", "3", "2", "1",
@@ -56,6 +64,8 @@ function GameMode:new()
 	self.hard_drop_locked = false
 	self.lock_on_soft_drop = false
 	self.lock_on_hard_drop = false
+	self.cleared_block_table = {}
+	self.used_randomizer = nil
 	self.hold_queue = nil
 	self.held = false
 	self.section_start_time = 0
@@ -70,20 +80,34 @@ function GameMode:getLineARE() return 25 end
 function GameMode:getLockDelay() return 30 end
 function GameMode:getLineClearDelay() return 40 end
 function GameMode:getDasLimit() return 15 end
+function GameMode:getDasCutDelay() return 0 end
+function GameMode:getGravity() return 1/64 end
 
 function GameMode:getNextPiece(ruleset)
-	
 	return {
-		skin = "2tie",
-		shape = self.randomizer:nextPiece(),
+		skin = self:getSkin(),
+		shape = self.used_randomizer:nextPiece(),
 		orientation = ruleset:getDefaultOrientation(),
 	}
 end
 
-function GameMode:initialize(ruleset)
+function GameMode:getSkin()
+	return "2tie"
+end
+
+function GameMode:initialize(ruleset, secret_inputs)
 	-- generate next queue
-	self:new()
-	for i = 1, self.next_queue_length do
+	self:new(secret_inputs)
+	self.used_randomizer = (
+		ruleset.pieces == self.randomizer.possible_pieces and
+		self.randomizer or
+		(
+			ruleset.pieces == 7 and
+			Randomizer() or
+			BagRandomizer(ruleset.pieces)
+		)
+	)
+	for i = 1, math.max(self.next_queue_length, 1) do
 		table.insert(self.next_queue, self:getNextPiece(ruleset))
 	end
 	self.lock_on_soft_drop = ({ruleset.softdrop_lock, self.instant_soft_drop, false, true })[config.gamesettings.manlock]
@@ -91,14 +115,10 @@ function GameMode:initialize(ruleset)
 end
 
 function GameMode:update(inputs, ruleset)
-	if self.game_over then 
+	if self.game_over or self.completed then
 		self.game_over_frames = self.game_over_frames + 1
-		if self.game_over_frames >= 60 then
-			self.completed = true
-		end
 		return
 	end
-	if self.completed then return end
 
 	if config.gamesettings.diagonal_input == 2 then
 		if inputs["left"] or inputs["right"] then
@@ -113,16 +133,34 @@ function GameMode:update(inputs, ruleset)
 	-- advance one frame
 	if self:advanceOneFrame(inputs, ruleset) == false then return end
 
-	self:chargeDAS(inputs, self:getDasLimit(), self.getARR())
+	self:chargeDAS(inputs, self:getDasLimit(), self:getARR())
 
 	-- set attempt flags
-	if inputs["left"] or inputs["right"] then self:onAttemptPieceMove(self.piece) end
+	if inputs["left"] or inputs["right"] then
+		self:onAttemptPieceMove(self.piece)
+		if self.immobile_spin_bonus and self.piece ~= nil then
+			if not self.piece:isMoveBlocked(self.grid, { x=-1, y=0 }) and
+			not self.piece:isMoveBlocked(self.grid, { x=1, y=0 }) then
+				self.piece.spin = false
+			end
+		end
+	end
 	if
 		inputs["rotate_left"] or inputs["rotate_right"] or
 		inputs["rotate_left2"] or inputs["rotate_right2"] or
 		inputs["rotate_180"]
 	then
 		self:onAttemptPieceRotate(self.piece)
+		if self.immobile_spin_bonus and self.piece ~= nil then
+			if self.piece:isDropBlocked(self.grid) and
+			self.piece:isMoveBlocked(self.grid, { x=-1, y=0 }) and 
+			self.piece:isMoveBlocked(self.grid, { x=1, y=0 }) and
+			self.piece:isMoveBlocked(self.grid, { x=0, y=-1 }) then
+				self.piece.spin = true
+			else
+			 	self.piece.spin = false
+			end
+		end
 	end
 	
 	if self.piece == nil then
@@ -135,27 +173,52 @@ function GameMode:update(inputs, ruleset)
 		if self.enable_hold and inputs["hold"] == true and self.held == false and self.prev_inputs["hold"] == false then
 			self:hold(inputs, ruleset)
 			self.prev_inputs = inputs
+			if not self.grid:canPlacePiece(self.piece) then
+				self.game_over = true
+			end
 			return
 		end
 
-		if self.lock_drop and inputs["down"] ~= true then
+		if (self.lock_drop or (
+			not ruleset.are or self:getARE() == 0
+		)) and inputs["down"] ~= true then
 			self.drop_locked = false
 		end
 
-		if self.lock_hard_drop and inputs["up"] ~= true then
+		if (self.lock_hard_drop or (
+			not ruleset.are or self:getARE() == 0
+		)) and inputs["up"] ~= true then
 			self.hard_drop_locked = false
 		end
 
+		-- diff vars to use in checks
 		local piece_y = self.piece.position.y
+		local piece_rot = self.piece.rotation
 
 		ruleset:processPiece(
 			inputs, self.piece, self.grid, self:getGravity(), self.prev_inputs,
 			self.move, self:getLockDelay(), self:getDropSpeed(),
 			self.drop_locked, self.hard_drop_locked,
-			self.enable_hard_drop, self.additive_gravity
+			self.enable_hard_drop, self.additive_gravity, self.classic_lock
 		)
 
 		local piece_dy = self.piece.position.y - piece_y
+		local piece_drot = self.piece.rotation - piece_rot
+
+		-- das cut
+		if (
+			(piece_dy ~= 0 and (inputs.up or inputs.down)) or
+			(piece_drot ~= 0 and (
+				inputs.rotate_left or inputs.rotate_right or
+				inputs.rotate_left2 or inputs.rotate_right2 or
+				inputs.rotate_180
+			))
+		) then
+			self.das.frames = math.max(
+				self.das.frames - self:getDasCutDelay(),
+				-(self:getDasCutDelay() + 1)
+			)
+		end
 
 		if inputs["up"] == true and
 			self.piece:isDropBlocked(self.grid) and
@@ -179,13 +242,15 @@ function GameMode:update(inputs, ruleset)
 
 		if self.piece.locked == true then
 			self.grid:applyPiece(self.piece)
-			self.grid:markClearedRows()
+			if self.square_mode then
+				self.squares = self.squares + self.grid:markSquares()
+			end
 
 			local cleared_row_count = self.grid:getClearedRowCount()
-
 			self:onPieceLock(self.piece, cleared_row_count)
 			self:updateScore(self.level, self.drop_bonus, cleared_row_count)
 
+			self.cleared_block_table = self.grid:markClearedRows()
 			self.piece = nil
 			if self.enable_hold then
 				self.held = false
@@ -194,16 +259,19 @@ function GameMode:update(inputs, ruleset)
 			if cleared_row_count > 0 then
 				playSE("erase")
 				self.lcd = self:getLineClearDelay()
-				self.are = self:getLineARE()
+				self.are = (
+					ruleset.are and self:getLineARE() or 0
+				)
 				if self.lcd == 0 then
 					self.grid:clearClearedRows()
+					self:afterLineClear(cleared_row_count)
 					if self.are == 0 then
 						self:initializeOrHold(inputs, ruleset)
 					end
 				end
 				self:onLineClear(cleared_row_count)
 			else
-				if self:getARE() == 0 then
+				if self:getARE() == 0 or not ruleset.are then
 					self:initializeOrHold(inputs, ruleset)
 				else
 					self.are = self:getARE()
@@ -233,6 +301,7 @@ function GameMode:onPieceLock(piece, cleared_row_count)
 end
 
 function GameMode:onLineClear(cleared_row_count) end
+function GameMode:afterLineClear(cleared_row_count) end
 
 function GameMode:onPieceEnter() end
 function GameMode:onHold() end
@@ -247,6 +316,15 @@ end
 
 function GameMode:onGameOver()
 	switchBGM(nil)
+	love.graphics.setColor(0, 0, 0, 1 - 2 ^ (-self.game_over_frames / 30))
+	love.graphics.rectangle(
+		"fill", 64, 80,
+		16 * self.grid.width, 16 * (self.grid.height - 4)
+	)
+end
+
+function GameMode:onGameComplete()
+	self:onGameOver()
 end
 
 -- DAS functions
@@ -327,6 +405,12 @@ function GameMode:processDelays(inputs, ruleset, drop_speed)
 		playedGoSE = false
 	end
 	if self.ready_frames > 0 then
+		if not self.prev_inputs["up"] and inputs["up"] and self.enable_hard_drop then
+			self.buffer_hard_drop = true
+		end
+		if not self.prev_inputs["down"] and inputs["down"] then
+			self.buffer_soft_drop = true
+		end
 		if not playedReadySE then
 			playedReadySE = true
 			playSEOnce("ready")
@@ -340,16 +424,30 @@ function GameMode:processDelays(inputs, ruleset, drop_speed)
 			self:initializeOrHold(inputs, ruleset)
 		end
 	elseif self.lcd > 0 then
+		if not self.prev_inputs["up"] and inputs["up"] and self.enable_hard_drop then
+			self.buffer_hard_drop = true
+		end
+		if not self.prev_inputs["down"] and inputs["down"] then
+			self.buffer_soft_drop = true
+		end
 		self.lcd = self.lcd - 1
 		self:areCancel(inputs, ruleset)
 		if self.lcd == 0 then
+			local cleared_row_count = self.grid:getClearedRowCount()
 			self.grid:clearClearedRows()
+			self:afterLineClear(cleared_row_count)
 			playSE("fall")
 			if self.are == 0 then
 				self:initializeOrHold(inputs, ruleset)
 			end
 		end
 	elseif self.are > 0 then
+		if not self.prev_inputs["up"] and inputs["up"] and self.enable_hard_drop then
+			self.buffer_hard_drop = true
+		end
+		if not self.prev_inputs["down"] and inputs["down"] then
+			self.buffer_soft_drop = true
+		end
 		self.are = self.are - 1
 		self:areCancel(inputs, ruleset)
 		if self.are == 0 then
@@ -359,14 +457,15 @@ function GameMode:processDelays(inputs, ruleset, drop_speed)
 end
 
 function GameMode:initializeOrHold(inputs, ruleset)
-	if self.ihs and self.enable_hold and inputs["hold"] == true then
+	if (
+		self.frames == 0 or (ruleset.are and self:getARE() ~= 0) and self.ihs or false
+	) and self.enable_hold and inputs["hold"] == true then
 		self:hold(inputs, ruleset, true)
 	else
 		self:initializeNextPiece(inputs, ruleset, self.next_queue[1])
 	end
 	self:onPieceEnter()
 	if not self.grid:canPlacePiece(self.piece) then
-		self:onGameOver()
 		self.game_over = true
 	end
 end
@@ -403,23 +502,46 @@ function GameMode:initializeNextPiece(inputs, ruleset, piece_data, generate_next
 		self.prev_inputs, self.move,
 		self:getLockDelay(), self:getDropSpeed(),
 		self.lock_drop, self.lock_hard_drop, self.big_mode,
-		self.irs
+		(
+			self.frames == 0 or (ruleset.are and self:getARE() ~= 0)
+		) and self.irs or false,
+		self.buffer_hard_drop, self.buffer_soft_drop,
+		self.lock_on_hard_drop, self.lock_on_soft_drop
 	)
-	if self.lock_drop then
+	if self.piece:isDropBlocked(self.grid) and
+	   self.grid:canPlacePiece(self.piece) then
+		playSE("bottom")
+	end
+	if self.buffer_hard_drop then
+		self.buffer_hard_drop = false
+		self:onHardDrop(self.piece.position.y - (
+			self.big_mode and
+			ruleset.big_spawn_positions[self.piece.shape].y or
+			ruleset.spawn_positions[self.piece.shape].y)
+		)
+	end
+	if self.buffer_soft_drop then
+		self.buffer_soft_drop = false
+	end
+	if self.lock_drop or (
+		not ruleset.are or self:getARE() == 0
+	) then
 		self.drop_locked = true
 	end
-	if self.lock_hard_drop then
+	if self.lock_hard_drop or (
+		not ruleset.are or self:getARE() == 0
+	) then
 		self.hard_drop_locked = true
 	end
 	if generate_next_piece == nil then
 		table.remove(self.next_queue, 1)
 		table.insert(self.next_queue, self:getNextPiece(ruleset))
 	end
-	self:playNextSound()
+	self:playNextSound(ruleset)
 end
 
-function GameMode:playNextSound()
-	playSE("blocks", self.next_queue[1].shape)
+function GameMode:playNextSound(ruleset)
+	playSE("blocks", ruleset.next_sounds[self.next_queue[1].shape])
 end
 
 function GameMode:getHighScoreData()
@@ -428,14 +550,87 @@ function GameMode:getHighScoreData()
 	}
 end
 
+function GameMode:animation(x, y, skin, colour)
+	return {
+		1, 1, 1,
+		-0.25 + 1.25 * (self.lcd / self:getLineClearDelay()),
+		skin, colour,
+		48 + x * 16, y * 16
+	}
+end
+
+function GameMode:drawLineClearAnimation()
+	-- animation function
+	-- params: block x, y, skin, colour
+	-- returns: table with RGBA, skin, colour, x, y
+	
+	-- Fadeout (default)
+	--[[
+	function animation(x, y, skin, colour)
+		return {
+			1, 1, 1,
+			-0.25 + 1.25 * (self.lcd / self:getLineClearDelay()),
+			skin, colour,
+			48 + x * 16, y * 16
+		}
+	end
+	--]]
+
+	-- Flash
+	--[[
+	function animation(x, y, skin, colour)
+		return {
+			1, 1, 1,
+			self.lcd % 6 < 3 and 1 or 0.25,
+			skin, colour,
+			48 + x * 16, y * 16
+		}
+	end
+	--]]
+
+	-- TGM1 pop-out
+	--[[
+	function animation(x, y, skin, colour)
+		local p = 0.5
+		local l = (
+			(self:getLineClearDelay() - self.lcd) / self:getLineClearDelay()
+		)
+		local dx = l * (x - (1 + self.grid.width) / 2)
+		local dy = l * (y - (1 + self.grid.height) / 2)
+		return {
+			1, 1, 1, 1, skin, colour,
+			48 + (x + dx) * 16,
+			(y + dy) * 16 + (464 / (p - 1)) * l * (p - l)
+		}
+	end
+	--]]
+
+	for y, row in pairs(self.cleared_block_table) do
+		for x, block in pairs(row) do
+			local animation_table = self:animation(x, y, block.skin, block.colour)
+			love.graphics.setColor(
+				animation_table[1], animation_table[2],
+				animation_table[3], animation_table[4]
+			)
+			love.graphics.draw(
+				blocks[animation_table[5]][animation_table[6]],
+				animation_table[7], animation_table[8]
+			)
+		end
+	end
+end
+
 function GameMode:drawPiece()
 	if self.piece ~= nil then
-		self.piece:draw(
-			1,
-			self:getLockDelay() == 0 and 1 or
-			(0.25 + 0.75 * math.max(1 - self.piece.gravity, 1 - (self.piece.lock_delay / self:getLockDelay()))),
-			self.grid
+		local b = (
+			self.classic_lock and
+			(
+				self.piece:isDropBlocked(self.grid) and
+				1 - self.piece.gravity or 1
+			) or
+			1 - (self.piece.lock_delay / self:getLockDelay())
 		)
+		self.piece:draw(1, 0.25 + 0.75 * b, self.grid)
 	end
 end
 
@@ -451,8 +646,8 @@ function GameMode:drawNextQueue(ruleset)
 	local colourscheme = ({ruleset.colourscheme, ColourSchemes.Arika, ColourSchemes.TTC})[config.gamesettings.piece_colour]
 	function drawPiece(piece, skin, offsets, pos_x, pos_y)
 		for index, offset in pairs(offsets) do
-			local x = offset.x + ruleset.spawn_positions[piece].x
-			local y = offset.y + 4.7
+			local x = offset.x + ruleset.draw_offsets[piece].x + ruleset.spawn_positions[piece].x
+			local y = offset.y + ruleset.draw_offsets[piece].y + 4.7
 			love.graphics.draw(blocks[skin][colourscheme[piece]], pos_x+x*16, pos_y+y*16)
 		end
 	end
@@ -468,8 +663,7 @@ function GameMode:drawNextQueue(ruleset)
 		end
 	end
 	if self.hold_queue ~= nil and self.enable_hold then
-		local hold_color = self.held and 0.6 or 1
-		self:setHoldOpacity(1, hold_color)
+		self:setHoldOpacity()
 		drawPiece(
 			self.hold_queue.shape, 
 			self.hold_queue.skin, 
@@ -480,15 +674,25 @@ function GameMode:drawNextQueue(ruleset)
 	return false
 end
 
-function GameMode:setNextOpacity(i, j)
-		i = i ~= nil and i or 1
-		j = j ~= nil and j or 1
-		love.graphics.setColor(j, j, j, i)
+function GameMode:setNextOpacity(i)
+	love.graphics.setColor(1, 1, 1, 1)
 end
-function GameMode:setHoldOpacity(i, j)
-	i = i ~= nil and i or 1
-	j = j ~= nil and j or 1
-	love.graphics.setColor(j, j, j, i)
+
+function GameMode:setHoldOpacity()
+	local colour = self.held and 0.6 or 1
+	love.graphics.setColor(colour, colour, colour, 1)
+end
+
+function GameMode:getBackground()
+	return 0
+end
+
+function GameMode:getHighscoreData()
+	return {}
+end
+
+function GameMode:drawGrid()
+	self.grid:draw()
 end
 
 function GameMode:drawScoringInfo()
@@ -528,7 +732,8 @@ function GameMode:sectionColourFunction(section)
 	return { 1, 1, 1, 1 }
 end
 
-function GameMode:drawSectionTimesWithSecondary(current_section)
+function GameMode:drawSectionTimesWithSecondary(current_section, section_limit)
+	section_limit = section_limit or math.huge
 	local section_x = 530
 	local section_secondary_x = 440
 
@@ -553,10 +758,14 @@ function GameMode:drawSectionTimesWithSecondary(current_section)
 		current_x = section_secondary_x
 	end
 
+	if current_section <= section_limit then
 		love.graphics.printf(formatTime(self.frames - self.section_start_time), current_x, 40 + 20 * current_section, 90, "left")
+	end
 end
 
-function GameMode:drawSectionTimesWithSplits(current_section)
+function GameMode:drawSectionTimesWithSplits(current_section, section_limit)
+	section_limit = section_limit or math.huge
+	
 	local section_x = 440
 	local split_x = 530
 
@@ -570,8 +779,11 @@ function GameMode:drawSectionTimesWithSplits(current_section)
 		end
 	end
 	
+	if (current_section <= section_limit) then
+		love.graphics.setColor(self:sectionColourFunction(current_section))
 		love.graphics.printf(formatTime(self.frames - self.section_start_time), section_x, 40 + 20 * current_section, 90, "left")
 		love.graphics.printf(formatTime(self.frames), split_x, 40 + 20 * current_section, 90, "left")
+	end
 end
 
 function GameMode:drawCustom() end

tetris/modes/marathon_2020.lua

@@ -256,8 +256,10 @@ end
 local function getSectionForLevel(level)
 	if level < 2001 then
 		return math.floor(level / 100) + 1
-	else
+	elseif level < 2020 then
 		return 20
+	else
+		return 21
 	end
 end
 
@@ -442,7 +444,7 @@ function Marathon2020Game:drawScoringInfo()
 	love.graphics.printf("GRADE PTS.", text_x, 200, 90, "left")
 	love.graphics.printf("LEVEL", text_x, 320, 40, "left")
 
-	self:drawSectionTimesWithSecondary(current_section)
+	self:drawSectionTimesWithSecondary(current_section, 20)
 
 	if (self.cool_timer > 0) then
 				love.graphics.printf("COOL!!", 64, 400, 160, "center")

tetris/modes/marathon_a1.lua

@@ -2,6 +2,7 @@ require 'funcs'
 
 local GameMode = require 'tetris.modes.gamemode'
 local Piece = require 'tetris.components.piece'
+local Grid = require 'tetris.components.grid'
 
 local History4RollsRandomizer = require 'tetris.randomizers.history_4rolls'
 

tetris/modes/marathon_a2.lua

@@ -26,6 +26,7 @@ function MarathonA2Game:new()
 	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.tetris_count = 0
 	
 	self.SGnames = {
 		"9", "8", "7", "6", "5", "4", "3", "2", "1",
@@ -130,6 +131,9 @@ end
 function MarathonA2Game:updateScore(level, drop_bonus, cleared_lines)
 	if not self.clear then
 		self:updateGrade(cleared_lines)
+		if cleared_lines >= 4 then
+			self.tetris_count = self.tetris_count + 1
+		end
 		if self.grid:checkForBravo(cleared_lines) then self.bravo = 4 else self.bravo = 1 end
 		if cleared_lines > 0 then
 			self.combo = self.combo + (cleared_lines - 1) * 2
@@ -145,6 +149,7 @@ function MarathonA2Game:updateScore(level, drop_bonus, cleared_lines)
 end
 
 function MarathonA2Game:onLineClear(cleared_row_count)
+	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
@@ -164,6 +169,8 @@ function MarathonA2Game:updateSectionTimes(old_level, new_level)
 		section_time = self.frames - self.section_start_time
 		self.section_times[math.floor(old_level / 100)] = section_time
 		self.section_start_time = self.frames
+		self.section_tetrises[math.floor(old_level / 100)] = self.tetris_count
+		self.tetris_count = 0
 	end
 end
 
@@ -231,14 +238,16 @@ local grade_conversion = {
 	17, 18, 19
 }
 
-function MarathonA2Game:updateGrade(cleared_lines)
-	if self.clear then return end
-	if cleared_lines == 0 then
+function MarathonA2Game:whilePieceActive()
 	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
+end
+
+function MarathonA2Game:updateGrade(cleared_lines)
+	if self.clear or cleared_lines == 0 then return
 	else
 		self.grade_points = self.grade_points + (
 			math.ceil(

tetris/modes/marathon_a3.lua

@@ -313,13 +313,16 @@ local grade_conversion = {
 	17
 }
 
-function MarathonA3Game:updateGrade(cleared_lines)
-	if cleared_lines == 0 then
+function MarathonA3Game:whilePieceActive()
 	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
+end
+
+function MarathonA3Game:updateGrade(cleared_lines)
+	if cleared_lines == 0 then return
 	else
 		if self.clear then
 			if self:qualifiesForMRoll() then
@@ -424,8 +427,8 @@ function MarathonA3Game:drawScoringInfo()
 	end
 
 	-- draw section time data
-	current_section = math.floor(self.level / 100) + 1
-	self:drawSectionTimesWithSecondary(current_section)
+	current_section = self.level >= 999 and 11 or math.floor(self.level / 100) + 1
+	self:drawSectionTimesWithSecondary(current_section, 10)
 	--[[
 
 	section_x = 530

tetris/modes/phantom_mania2.lua

@@ -86,12 +86,8 @@ function PhantomMania2Game:getGarbageLimit()
 	else return 8 end
 end
 
-function PhantomMania2Game:getNextPiece(ruleset)
-	return {
-		skin = self.level >= 1000 and "bone" or "2tie",
-		shape = self.randomizer:nextPiece(),
-		orientation = ruleset:getDefaultOrientation(),
-	}
+function PhantomMania2Game:getSkin()
+	return self.level >= 1000 and "bone" or "2tie"
 end
 
 function PhantomMania2Game:hitTorikan(old_level, new_level)

tetris/modes/sakura.lua

@@ -4,6 +4,7 @@ local GameMode = require 'tetris.modes.gamemode'
 local Piece = require 'tetris.components.piece'
 
 local SakuraRandomizer = require 'tetris.randomizers.sakura'
+local History6RollsRandomizer = require 'tetris.randomizers.history_6rolls_35bag'
 
 local SakuraGame = GameMode:extend()
 
@@ -264,10 +265,14 @@ local maps = {
 
 local STAGE_TRANSITION_TIME = 300
 
-function SakuraGame:new()
+function SakuraGame:new(secret_inputs)
     self.super:new()
 
-    self.randomizer = SakuraRandomizer()
+    self.randomizer = (
+        (
+            secret_inputs.rotate_left and secret_inputs.rotate_right
+        ) and History6RollsRandomizer() or SakuraRandomizer()
+    )
     
     self.current_map = 1
     self.time_limit = 10800
@@ -403,12 +408,17 @@ function SakuraGame:advanceOneFrame(inputs, ruleset)
         
         self.frames = self.frames + 1
         self.stage_frames = self.stage_frames + 1
-        self.time_limit = self.time_limit - 1
-        if self.time_limit <= 0 then self.game_over = true end
+        self.time_limit = math.max(self.time_limit - 1, 0)
+        if self.time_limit <= 0 and self.piece == nil then
+            self.game_over = true
+        end
 
-        if self.piece ~= nil and self.frames % 30 == 0 and
-           effects[self.current_map] == "roll"
+        if self.piece ~= nil and
+           effects[self.current_map] == "roll" and
+           self.stage_pieces % 4 == 0
            then
+            self.piece.colour = "F"
+            if self.stage_frames % 30 == 0 then
                 ruleset:attemptRotate(
                     {[config.gamesettings.world_reverse == 3 or
                     (ruleset.world and config.gamesettings.world_reverse == 2)
@@ -416,6 +426,7 @@ function SakuraGame:advanceOneFrame(inputs, ruleset)
                     self.piece, self.grid, false
                 )
             end
+        end
     else
         self.cleared_frames = STAGE_TRANSITION_TIME
         if not self.prev_inputs.hold and inputs.hold then
@@ -426,6 +437,8 @@ function SakuraGame:advanceOneFrame(inputs, ruleset)
     return true
 end
 
+function SakuraGame:onGameComplete() end
+
 local function colourXRay(game, block, x, y, age)
     local r, g, b, a = .5,.5,.5
     if ((game.stage_frames/2 - x) % 30 < 1)
@@ -457,9 +470,9 @@ function SakuraGame:drawGrid()
         self.grid:drawCustom(colourColor, self)
 	else
         self.grid:draw()    
-        -- if self.piece ~= nil and self.level < 100 then
-            self:drawGhostPiece(ruleset)
-        -- end
+    end
+    if self.piece ~= nil and self.level < 100 then
+        self:drawGhostPiece()
     end
 end
 
@@ -482,13 +495,17 @@ function SakuraGame:drawScoringInfo()
     if effects[self.current_map] then
         love.graphics.printf("EFFECT: " .. effects[self.current_map], 240, 300, 160, "left")
     end
+    if self.used_randomizer.history then
+        love.graphics.printf("RANDOM PIECES ACTIVE!", 240, 150, 200, "left")
+    end
 
     love.graphics.setFont(font_3x5_3)
     love.graphics.setColor(
         (self.time_limit % 4 < 2 and
         self.time_limit <= frameTime(0,10) and
         self.grid:hasGemBlocks() and
-        self.time_limit ~= 0) and
+        self.time_limit ~= 0 and
+        self.ready_frames == 0) and
         { 1, 0.3, 0.3, 1 } or
         { 1, 1, 1, 1 }
     )

tetris/modes/survival_a3.lua

@@ -92,12 +92,8 @@ function SurvivalA3Game:getGarbageLimit()
 	else return 8 end
 end
 
-function SurvivalA3Game:getNextPiece(ruleset)
-	return {
-		skin = self.level >= 1000 and "bone" or "2tie",
-		shape = self.randomizer:nextPiece(),
-		orientation = ruleset:getDefaultOrientation(),
-	}
+function SurvivalA3Game:getSkin()
+	return self.level >= 1000 and "bone" or "2tie"
 end
 
 function SurvivalA3Game:hitTorikan(old_level, new_level)

tetris/modes/survival_ax.lua

@@ -5,15 +5,15 @@ local Piece = require 'tetris.components.piece'
 
 local Bag7NoSZOStartRandomizer = require 'tetris.randomizers.bag7noSZOstart'
 
-local MarathonAX4Game = GameMode:extend()
+local SurvivalAXGame = GameMode:extend()
 
-MarathonAX4Game.name = "Marathon AX4"
-MarathonAX4Game.hash = "MarathonAX4"
-MarathonAX4Game.tagline = "Can you clear the time hurdles when the game goes this fast?"
+SurvivalAXGame.name = "Survival AX"
+SurvivalAXGame.hash = "SurvivalAX"
+SurvivalAXGame.tagline = "Can you clear the time hurdles when the game goes this fast?"
 
 
-function MarathonAX4Game:new()
-	MarathonAX4Game.super:new()
+function SurvivalAXGame:new()
+	SurvivalAXGame.super:new()
 
 	self.roll_frames = 0
 	self.randomizer = Bag7NoSZOStartRandomizer()
@@ -29,7 +29,7 @@ function MarathonAX4Game:new()
 	self.next_queue_length = 3
 end
 
-function MarathonAX4Game:getARE()
+function SurvivalAXGame:getARE()
 		if self.lines < 10 then return 18
 	elseif self.lines < 40 then return 14
 	elseif self.lines < 60 then return 12
@@ -39,24 +39,24 @@ function MarathonAX4Game:getARE()
 	else return 6 end
 end
 
-function MarathonAX4Game:getLineARE()
+function SurvivalAXGame:getLineARE()
 	return self:getARE()
 end
 
-function MarathonAX4Game:getDasLimit()
+function SurvivalAXGame:getDasLimit()
 		if self.lines < 20 then return 10
 	elseif self.lines < 50 then return 9
 	elseif self.lines < 70 then return 8
 	else return 7 end
 end
 
-function MarathonAX4Game:getLineClearDelay()
+function SurvivalAXGame:getLineClearDelay()
 		if self.lines < 10 then return 14
 	elseif self.lines < 30 then return 9
 	else return 5 end
 end
 
-function MarathonAX4Game:getLockDelay()
+function SurvivalAXGame:getLockDelay()
 		if self.lines < 10 then return 28
 	elseif self.lines < 20 then return 24
 	elseif self.lines < 30 then return 22
@@ -66,15 +66,15 @@ function MarathonAX4Game:getLockDelay()
 	else return 13 end
 end
 
-function MarathonAX4Game:getGravity()
+function SurvivalAXGame:getGravity()
 	return 20
 end
 
-function MarathonAX4Game:getSection()
+function SurvivalAXGame:getSection()
 	return math.floor(level / 100) + 1
 end
 
-function MarathonAX4Game:advanceOneFrame()
+function SurvivalAXGame:advanceOneFrame()
 	if self.clear then
 		self.roll_frames = self.roll_frames + 1
 		if self.roll_frames < 0 then		
@@ -93,7 +93,7 @@ function MarathonAX4Game:advanceOneFrame()
 	return true
 end
 
-function MarathonAX4Game:onLineClear(cleared_row_count)
+function SurvivalAXGame:onLineClear(cleared_row_count)
 	if not self.clear then
 		local new_lines = self.lines + cleared_row_count
 		self:updateSectionTimes(self.lines, new_lines)
@@ -106,11 +106,11 @@ function MarathonAX4Game:onLineClear(cleared_row_count)
 	end
 end
 
-function MarathonAX4Game:getSectionTime()
+function SurvivalAXGame:getSectionTime()
 	return self.frames - self.section_start_time
 end
 
-function MarathonAX4Game:updateSectionTimes(old_lines, new_lines)
+function SurvivalAXGame:updateSectionTimes(old_lines, new_lines)
 	if math.floor(old_lines / 10) < math.floor(new_lines / 10) then
 		-- record new section
 		table.insert(self.section_times, self:getSectionTime())
@@ -119,23 +119,23 @@ function MarathonAX4Game:updateSectionTimes(old_lines, new_lines)
 	end
 end
 
-function MarathonAX4Game:onPieceEnter()
+function SurvivalAXGame:onPieceEnter()
 	self.section_clear = false
 end
 
-function MarathonAX4Game:drawGrid(ruleset)
+function SurvivalAXGame:drawGrid(ruleset)
 	self.grid:draw()
 end
 
-function MarathonAX4Game:getHighscoreData()
+function SurvivalAXGame:getHighscoreData()
 	return {
 		lines = self.lines,
 		frames = self.frames,
 	}
 end
 
-function MarathonAX4Game:drawScoringInfo()
-	MarathonAX4Game.super.drawScoringInfo(self)
+function SurvivalAXGame:drawScoringInfo()
+	SurvivalAXGame.super.drawScoringInfo(self)
 
 	love.graphics.setColor(1, 1, 1, 1)
 
@@ -165,12 +165,12 @@ function MarathonAX4Game:drawScoringInfo()
 	love.graphics.setColor(1, 1, 1, 1)
 end
 
-function MarathonAX4Game:getSectionEndLines()
+function SurvivalAXGame:getSectionEndLines()
 	return math.floor(self.lines / 10 + 1) * 10
 end
 
-function MarathonAX4Game:getBackground()
+function SurvivalAXGame:getBackground()
 	return math.floor(self.lines / 10)
 end
 
-return MarathonAX4Game
+return SurvivalAXGame

tetris/randomizers/bag.lua

@@ -0,0 +1,23 @@
+local Randomizer = require 'tetris.randomizers.randomizer'
+
+local BagRandomizer = Randomizer:extend()
+
+function BagRandomizer:new(pieces)
+    self.bag = {}
+    self.pieces = pieces
+    for i = 1, self.pieces do
+        table.insert(self.bag, i)
+    end
+end
+
+function BagRandomizer:generatePiece()
+	if next(self.bag) == nil then
+		for i = 1, self.pieces do
+            table.insert(self.bag, i)
+        end
+	end
+	local x = math.random(table.getn(self.bag))
+	return table.remove(self.bag, x)
+end
+
+return BagRandomizer

tetris/randomizers/randomizer.lua

@@ -3,6 +3,7 @@ local Object = require 'libs.classic'
 local Randomizer = Object:extend()
 
 function Randomizer:new()
+	self.possible_pieces = 7
 	self:initialize()
 end
 

tetris/rulesets/arika.lua

@@ -110,13 +110,7 @@ function ARS:onPieceDrop(piece, grid)
 	piece.lock_delay = 0 -- step reset
 end
 
-function ARS:get180RotationValue() 
-	if config.gamesettings.world_reverse == 3 then
-		return 1
-	else
-		return 3
-	end
-end
+function ARS:get180RotationValue() return 3 end
 
 function ARS:getDefaultOrientation() return 3 end  -- downward facing pieces by default
 

tetris/rulesets/arika_ace.lua

@@ -18,26 +18,7 @@ ARS.colourscheme = {
 
 ARS.softdrop_lock = false
 ARS.harddrop_lock = true
-
-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=3, y=0 },
-	J = { x=2, y=1 },
-	L = { x=2, y=1 },
-	O = { x=3, y=1 },
-	S = { x=2, y=1 },
-	T = { x=2, y=1 },
-	Z = { x=2, y=1 },
-}
+ARS.spawn_above_field = true
 
 function ARS:onPieceCreate(piece, grid)
 	piece.floorkick = 0
@@ -69,4 +50,8 @@ function ARS:onPieceRotate(piece, grid)
 	end
 end
 
+function ARS:get180RotationValue() return 3 end
+
+function ARS:getDefaultOrientation() return 3 end  -- downward facing pieces by default
+
 return ARS

tetris/rulesets/arika_ace2.lua

@@ -5,26 +5,7 @@ local ARS = Ruleset:extend()
 
 ARS.name = "ACE-ARS2"
 ARS.hash = "ArikaACE2"
-
-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=3, y=0 },
-	J = { x=2, y=1 },
-	L = { x=2, y=1 },
-	O = { x=3, y=1 },
-	S = { x=2, y=1 },
-	T = { x=2, y=1 },
-	Z = { x=2, y=1 },
-}
+ARS.spawn_above_field = true
 
 function ARS:onPieceCreate(piece, grid)
 	piece.floorkick = 0
@@ -56,4 +37,8 @@ function ARS:onPieceRotate(piece, grid)
 	end
 end
 
+function ARS:get180RotationValue() return 3 end
+
+function ARS:getDefaultOrientation() return 3 end  -- downward facing pieces by default
+
 return ARS

tetris/rulesets/arika_srs.lua

@@ -4,30 +4,23 @@ local Ruleset = require 'tetris.rulesets.ti_srs'
 local SRS = Ruleset:extend()
 
 SRS.name = "ACE-SRS"
-SRS.hash = "ACE Standard"
+SRS.hash = "StandardACE"
+SRS.world = true
+SRS.colourscheme = {
+	I = "C",
+	L = "O",
+	J = "B",
+	S = "G",
+	Z = "R",
+	O = "Y",
+	T = "M",
+}
+SRS.softdrop_lock = false
+SRS.harddrop_lock = true
+SRS.spawn_above_field = true
 
 SRS.MANIPULATIONS_MAX = 128
 
-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=3, y=0 },
-	J = { x=2, y=1 },
-	L = { x=2, y=1 },
-	O = { x=3, y=1 },
-	S = { x=2, y=1 },
-	T = { x=2, y=1 },
-	Z = { x=2, y=1 },
-}
-
 function SRS:onPieceRotate(piece, grid)
 	piece.lock_delay = 0 -- rotate reset
 	if piece:isDropBlocked(grid) then

tetris/rulesets/arika_ti.lua

@@ -99,4 +99,8 @@ function ARS:onPieceRotate(piece, grid)
 	end
 end
 
+function ARS:get180RotationValue() return 3 end
+
+function ARS:getDefaultOrientation() return 3 end  -- downward facing pieces by default
+
 return ARS

tetris/rulesets/cambridge.lua

@@ -364,7 +364,7 @@ function CRS:attemptRotate(new_inputs, piece, grid, initial)
 
 	if rot_dir == 0 then return end
 	
-	if self.world and config.gamesettings.world_reverse == 2 then
+    if config.gamesettings.world_reverse == 3 or (self.world and config.gamesettings.world_reverse == 2) then
         rot_dir = 4 - rot_dir
     end
 

tetris/rulesets/pairs.lua

@@ -0,0 +1,275 @@
+local Ruleset = require 'tetris.rulesets.ruleset'
+
+local PAIRS = Ruleset:extend()
+
+PAIRS.name = "PAIRS"
+PAIRS.hash = "PAIRS"
+PAIRS.world = true
+
+PAIRS.spawn_positions = {
+    [1] = { x=4, y=4 },
+    [2] = { x=4, y=5 },
+    [3] = { x=4, y=5 },
+    [4] = { x=4, y=5 },
+    [5] = { x=5, y=5 },
+    [6] = { x=5, y=5 },
+    [7] = { x=5, y=5 },
+    [8] = { x=5, y=5 },
+    [9] = { x=5, y=5 },
+    [10] = { x=5, y=5 },
+    [11] = { x=4, y=5 },
+    [12] = { x=4, y=5 },
+    [13] = { x=4, y=5 },
+    [14] = { x=4, y=5 },
+    [15] = { x=4, y=5 },
+    [16] = { x=4, y=5 },
+    [17] = { x=4, y=5 },
+    [18] = { x=4, y=5 },
+}
+
+PAIRS.big_spawn_positions = {
+	[1] = { x=2, y=2 },
+    [2] = { x=2, y=3 },
+    [3] = { x=2, y=3 },
+    [4] = { x=2, y=3 },
+    [5] = { x=3, y=3 },
+    [6] = { x=3, y=3 },
+    [7] = { x=3, y=3 },
+    [8] = { x=3, y=3 },
+    [9] = { x=3, y=3 },
+    [10] = { x=3, y=3 },
+    [11] = { x=2, y=3 },
+    [12] = { x=2, y=3 },
+    [13] = { x=2, y=3 },
+    [14] = { x=2, y=3 },
+    [15] = { x=2, y=3 },
+    [16] = { x=2, y=3 },
+    [17] = { x=2, y=3 },
+    [18] = { x=2, y=3 },
+}
+
+PAIRS.draw_offsets = {
+	[1] = { x=0, y=0 },
+	[2] = { x=0, y=0 },
+	[3] = { x=0, y=0 },
+	[4] = { x=0, y=0 },
+	[5] = { x=0, y=0 },
+	[6] = { x=0, y=0 },
+    [7] = { x=0, y=0 },
+    [8] = { x=0, y=0 },
+	[9] = { x=0, y=0 },
+	[10] = { x=0, y=0 },
+	[11] = { x=0, y=0 },
+	[12] = { x=0, y=0 },
+	[13] = { x=0, y=0 },
+    [14] = { x=0, y=0 },
+    [15] = { x=0, y=0 },
+	[16] = { x=0, y=0 },
+	[17] = { x=0, y=0 },
+	[18] = { x=0, y=0 },
+}
+
+PAIRS.next_sounds = {
+    [1] = "I",
+    [2] = "O",
+    [3] = "S",
+    [4] = "Z",
+    [5] = "L",
+    [6] = "J",
+    [7] = "Z",
+    [8] = "S",
+    [9] = "J",
+    [10] = "L",
+    [11] = "O",
+    [12] = "O",
+    [13] = "T",
+    [14] = "L",
+    [15] = "J",
+    [16] = "T",
+    [17] = "J",
+    [18] = "I"
+}
+
+PAIRS.colourscheme = {
+    [1] = "R",
+    [2] = "C",
+    [3] = "G",
+    [4] = "M",
+    [5] = "O",
+    [6] = "C",
+    [7] = "G",
+    [8] = "M",
+    [9] = "G",
+    [10] = "M",
+    [11] = "Y",
+    [12] = "B",
+    [13] = "M",
+    [14] = "O",
+    [15] = "B",
+    [16] = "G",
+    [17] = "C",
+    [18] = "R"
+}
+
+PAIRS.pieces = 18
+
+PAIRS.block_offsets = {
+    [1]={
+        { {x=-2, y=0}, {x=-1, y=0}, {x=0, y=0}, {x=1, y=0}, {x=2, y=0} },
+        { {x=0, y=-2}, {x=0, y=-1}, {x=0, y=0}, {x=0, y=1}, {x=0, y=2} },
+        { {x=-2, y=0}, {x=-1, y=0}, {x=0, y=0}, {x=1, y=0}, {x=2, y=0} },
+        { {x=0, y=-2}, {x=0, y=-1}, {x=0, y=0}, {x=0, y=1}, {x=0, y=2} },
+    },
+    [2]={
+        { {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=-1}, {x=-1, y=-1} },
+        { {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=-1}, {x=-1, y=-1} },
+        { {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=-1}, {x=-1, y=-1} },
+        { {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=-1}, {x=-1, y=-1} },
+    },
+    [3]={
+        { {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=-2}, {x=-1, y=0} },
+        { {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=-1}, {x=1, y=0}, {x=-1, y=-2} },
+        { {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=-2}, {x=-1, y=0} },
+        { {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=-1}, {x=1, y=0}, {x=-1, y=-2} },
+    },
+    [4]={
+        { {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=0}, {x=-1, y=-2} },
+        { {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=-1}, {x=-1, y=0}, {x=1, y=-2} },
+        { {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=0}, {x=-1, y=-2} },
+        { {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=-1}, {x=-1, y=0}, {x=1, y=-2} },
+    },
+    [5]={
+        { {x=1, y=-1}, {x=-2, y=0}, {x=-1, y=0}, {x=0, y=0}, {x=1, y=0} },
+        { {x=0, y=0}, {x=-1, y=-3}, {x=-1, y=-2}, {x=-1, y=-1}, {x=-1, y=0} },
+        { {x=-2, y=0}, {x=-2, y=-1}, {x=-1, y=-1}, {x=0, y=-1}, {x=1, y=-1} },
+        { {x=-1, y=-3}, {x=0, y=-3}, {x=0, y=-2}, {x=0, y=-1}, {x=0, y=0} },
+    },
+    [6]={
+        { {x=-2, y=-1}, {x=-2, y=0}, {x=-1, y=0}, {x=0, y=0}, {x=1, y=0} },
+        { {x=0, y=-3}, {x=-1, y=-3}, {x=-1, y=-2}, {x=-1, y=-1}, {x=-1, y=0} },
+        { {x=1, y=0}, {x=-2, y=-1}, {x=-1, y=-1}, {x=0, y=-1}, {x=1, y=-1} },
+        { {x=-1, y=0}, {x=0, y=-3}, {x=0, y=-2}, {x=0, y=-1}, {x=0, y=0} },
+    },
+    [7]={
+        { {x=-2, y=-1}, {x=-1, y=-1}, {x=-1, y=0}, {x=0, y=0}, {x=1, y=0} },
+        { {x=0, y=-3}, {x=0, y=-2}, {x=-1, y=-2}, {x=-1, y=-1}, {x=-1, y=0} },
+        { {x=-2, y=-1}, {x=-1, y=-1}, {x=0, y=-1}, {x=0, y=0}, {x=1, y=0} },
+        { {x=-1, y=0}, {x=0, y=-3}, {x=0, y=-2}, {x=0, y=-1}, {x=-1, y=-1} },
+    },
+    [8]={
+        { {x=1, y=-1}, {x=-2, y=0}, {x=-1, y=0}, {x=0, y=0}, {x=0, y=-1} },
+        { {x=0, y=0}, {x=-1, y=-3}, {x=-1, y=-2}, {x=-1, y=-1}, {x=0, y=-1} },
+        { {x=-2, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1}, {x=1, y=-1} },
+        { {x=-1, y=-3}, {x=-1, y=-2}, {x=0, y=-2}, {x=0, y=-1}, {x=0, y=0} },
+    },
+    [9]={
+        { {x=-1, y=-1}, {x=-2, y=0}, {x=-1, y=0}, {x=0, y=0}, {x=1, y=0} },
+        { {x=0, y=-2}, {x=-1, y=-3}, {x=-1, y=-2}, {x=-1, y=-1}, {x=-1, y=0} },
+        { {x=0, y=0}, {x=-2, y=-1}, {x=-1, y=-1}, {x=0, y=-1}, {x=1, y=-1} },
+        { {x=-1, y=-1}, {x=0, y=-3}, {x=0, y=-2}, {x=0, y=-1}, {x=0, y=0} },
+    },
+    [10]={
+        { {x=0, y=-1}, {x=-2, y=0}, {x=-1, y=0}, {x=0, y=0}, {x=1, y=0} },
+        { {x=0, y=-1}, {x=-1, y=-3}, {x=-1, y=-2}, {x=-1, y=-1}, {x=-1, y=0} },
+        { {x=-1, y=0}, {x=-2, y=-1}, {x=-1, y=-1}, {x=0, y=-1}, {x=1, y=-1} },
+        { {x=-1, y=-2}, {x=0, y=-3}, {x=0, y=-2}, {x=0, y=-1}, {x=0, y=0} },
+    },
+    [11]={
+        { {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=0, y=-1}, {x=-1, y=-1} },
+        { {x=0, y=0}, {x=0, y=-1}, {x=0, y=-2}, {x=1, y=-1}, {x=1, y=-2} },
+        { {x=0, y=0}, {x=1, y=-1}, {x=1, y=0}, {x=0, y=-1}, {x=-1, y=-1} },
+        { {x=0, y=0}, {x=0, y=-1}, {x=0, y=-2}, {x=-1, y=-1}, {x=-1, y=0} },
+    },
+    [12]={
+        { {x=0, y=0}, {x=1, y=-1}, {x=1, y=0}, {x=0, y=-1}, {x=-1, y=0} },
+        { {x=0, y=0}, {x=0, y=-1}, {x=0, y=-2}, {x=1, y=-1}, {x=1, y=0} },
+        { {x=0, y=0}, {x=-1, y=0}, {x=1, y=-1}, {x=0, y=-1}, {x=-1, y=-1} },
+        { {x=0, y=0}, {x=0, y=-1}, {x=0, y=-2}, {x=-1, y=-1}, {x=-1, y=-2} },
+    },
+    [13]={
+        { {x=0, y=0}, {x=-1, y=0}, {x=1, y=0}, {x=-1, y=-1}, {x=1, y=-1} },
+        { {x=0, y=0}, {x=0, y=-1}, {x=0, y=-2}, {x=1, y=0}, {x=1, y=-2} },
+        { {x=0, y=-1}, {x=-1, y=0}, {x=1, y=0}, {x=-1, y=-1}, {x=1, y=-1} },
+        { {x=0, y=0}, {x=0, y=-1}, {x=0, y=-2}, {x=-1, y=0}, {x=-1, y=-2} },
+    },
+    [14]={
+        { {x=0, y=-1}, {x=0, y=0}, {x=0, y=-2}, {x=-1, y=-1}, {x=1, y=0} },
+        { {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=-1}, {x=0, y=-2}, {x=-1, y=0} },
+		{ {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=-1}, {x=-1, y=-2} },
+		{ {x=0, y=-1}, {x=1, y=-1}, {x=-1, y=-1}, {x=0, y=0}, {x=1, y=-2} },
+    },
+    [15]={
+        { {x=0, y=-1}, {x=0, y=0}, {x=0, y=-2}, {x=-1, y=0}, {x=1, y=-1} },
+        { {x=0, y=-1}, {x=-1, y=-1}, {x=1, y=-1}, {x=-1, y=-2}, {x=0, y=0} },
+		{ {x=0, y=-1}, {x=0, y=-2}, {x=0, y=0}, {x=1, y=-2}, {x=-1, y=-1} },
+		{ {x=0, y=-1}, {x=1, y=-1}, {x=-1, y=-1}, {x=1, y=0}, {x=0, y=-2} },
+    },
+    [16]={
+        { {x=0, y=0}, {x=0, y=-1}, {x=0, y=-2}, {x=-1, y=0}, {x=1, y=0} },
+        { {x=-1, y=0}, {x=0, y=-1}, {x=-1, y=-2}, {x=-1, y=-1}, {x=1, y=-1} },
+        { {x=0, y=0}, {x=0, y=-1}, {x=0, y=-2}, {x=-1, y=-2}, {x=1, y=-2} },
+        { {x=1, y=0}, {x=0, y=-1}, {x=1, y=-2}, {x=-1, y=-1}, {x=1, y=-1} },
+    },
+    [17]={
+        { {x=0, y=0}, {x=1, y=0}, {x=-1, y=0}, {x=-1, y=-1}, {x=-1, y=-2} },
+        { {x=0, y=-2}, {x=1, y=-2}, {x=-1, y=0}, {x=-1, y=-1}, {x=-1, y=-2} },
+        { {x=0, y=-2}, {x=1, y=0}, {x=-1, y=-2}, {x=1, y=-1}, {x=1, y=-2} },
+        { {x=0, y=0}, {x=1, y=0}, {x=-1, y=0}, {x=1, y=-1}, {x=1, y=-2} },
+    },
+    [18]={
+        { {x=1, y=0}, {x=0, y=0}, {x=0, y=-1}, {x=-1, y=-1}, {x=-1, y=-2} },
+        { {x=-1, y=0}, {x=-1, y=-1}, {x=0, y=-1}, {x=0, y=-2}, {x=1, y=-2} },
+        { {x=-1, y=-2}, {x=0, y=-2}, {x=0, y=-1}, {x=1, y=-1}, {x=1, y=0} },
+		{ {x=1, y=-2}, {x=1, y=-1}, {x=0, y=-1}, {x=0, y=0}, {x=-1, y=0} },
+    },
+}
+
+PAIRS.wallkicks = {
+	{x=1, y=0}, {x=-1, y=0}, {x=2, y=0}, {x=-2, y=0}, {x=0, y=-1}
+}
+
+function PAIRS:attemptWallkicks(piece, new_piece, rot_dir, grid)
+    if (piece.shape == 2) then return end
+    
+    local kicks = PAIRS.wallkicks
+
+	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
+			self:onPieceRotate(piece, grid)
+			piece:setRelativeRotation(rot_dir)
+			piece:setOffset(offset)
+			return
+		end
+	end
+end
+
+function PAIRS:checkNewLow(piece)
+    for _, block in pairs(piece:getBlockOffsets()) do
+        local y = piece.position.y + block.y
+        if y > piece.lowest_y then
+            piece.lock_delay = 0
+            piece.lowest_y = y
+        end
+    end
+end
+
+function PAIRS:onPieceCreate(piece, grid)
+	piece.lowest_y = -math.huge
+end
+
+function PAIRS:onPieceDrop(piece, grid)
+    self:checkNewLow(piece)
+end
+
+function PAIRS:get180RotationValue() 
+	if config.gamesettings.world_reverse == 1 then
+		return 1
+	else
+		return 3
+	end
+end
+
+return PAIRS

tetris/rulesets/ruleset.lua

@@ -22,10 +22,35 @@ Ruleset.harddrop_lock = false
 
 Ruleset.enable_IRS_wallkicks = false
 Ruleset.are_cancel = false
+Ruleset.are = true
+Ruleset.spawn_above_field = false
+
+Ruleset.next_sounds = {
+		I = "I",
+		L = "L",
+		J = "J",
+		S = "S",
+		Z = "Z",
+		O = "O",
+		T = "T"
+}
+
+Ruleset.draw_offsets = {
+	I = { x=0, y=0 },
+	J = { x=0, y=0 },
+	L = { x=0, y=0 },
+	O = { x=0, y=0 },
+	S = { x=0, y=0 },
+	T = { x=0, y=0 },
+	Z = { x=0, y=0 },
+}
+
+Ruleset.pieces = 7
 
 -- Component functions.
 
 function Ruleset:new()
+	
 	if config.gamesettings.piece_colour == 1 then
 		blocks["bone"] = (not self.world) and
 		{
@@ -88,8 +113,14 @@ function Ruleset:rotatePiece(inputs, piece, grid, prev_inputs, initial)
 		end
 	end
 
+	local was_drop_blocked = piece:isDropBlocked(grid)
+
 	self:attemptRotate(new_inputs, piece, grid, initial)
 
+	if not was_drop_blocked and piece:isDropBlocked(grid) then
+		playSE("bottom")
+	end
+
 	-- prev_inputs becomes the previous inputs
 	for input, value in pairs(inputs) do
 		prev_inputs[input] = inputs[input]
@@ -130,17 +161,21 @@ end
 
 function Ruleset:movePiece(piece, grid, move, instant)
 	local x = piece.position.x
+	local was_drop_blocked = piece:isDropBlocked(grid)
 	if move == "left" then
 		piece:moveInGrid({x=-1, y=0}, 1, grid, false)
 	elseif move == "right" then
 		piece:moveInGrid({x=1, y=0}, 1, grid, false)
 	elseif move == "speedleft" then
-		piece:moveInGrid({x=-1, y=0}, 10, grid, instant)
+		piece:moveInGrid({x=-1, y=0}, grid.width, grid, instant)
 	elseif move == "speedright" then
-		piece:moveInGrid({x=1, y=0}, 10, grid, instant)
+		piece:moveInGrid({x=1, y=0}, grid.width, grid, instant)
 	end
 	if piece.position.x ~= x then
 		self:onPieceMove(piece, grid)
+		if not was_drop_blocked and piece:isDropBlocked(grid) then
+			playSE("bottom")
+		end
 	end
 end
 
@@ -148,6 +183,11 @@ function Ruleset:dropPiece(
 	inputs, piece, grid, gravity, drop_speed, drop_locked, hard_drop_locked,
 	hard_drop_enabled, additive_gravity
 )
+	if piece.big then
+		gravity = gravity / 2
+		drop_speed = drop_speed / 2
+	end
+
 	local y = piece.position.y
 	if inputs["down"] == true and drop_locked == false then
 		if additive_gravity then
@@ -169,8 +209,11 @@ function Ruleset:dropPiece(
 	end
 end
 
-function Ruleset:lockPiece(piece, grid, lock_delay)
-	if piece:isDropBlocked(grid) and piece.gravity >= 1 and piece.lock_delay >= lock_delay then
+function Ruleset:lockPiece(piece, grid, lock_delay, classic_lock)
+	if piece:isDropBlocked(grid) and (
+		(classic_lock and piece.gravity >= 1) or
+		(not classic_lock and piece.lock_delay >= lock_delay)
+	) then
 		piece.locked = true
 	end
 end
@@ -181,7 +224,9 @@ function Ruleset:getDefaultOrientation() return 1 end
 function Ruleset:initializePiece(
 	inputs, data, grid, gravity, prev_inputs,
 	move, lock_delay, drop_speed,
-	drop_locked, hard_drop_locked, big, irs
+	drop_locked, hard_drop_locked, big, irs,
+	buffer_hard_drop, buffer_soft_drop,
+	lock_on_hard_drop, lock_on_soft_drop
 )
 	local spawn_positions
 	if big then
@@ -191,21 +236,49 @@ function Ruleset:initializePiece(
 	end
 	local colours = ({self.colourscheme, ColourSchemes.Arika, ColourSchemes.TTC})[config.gamesettings.piece_colour]
 	
+	local spawn_x
+	if (grid.width ~= 10) then
+		local percent = spawn_positions[data.shape].x / 10
+		for i = 0, grid.width - 1 do
+			if i / grid.width >= percent then
+				spawn_x = i
+				break
+			end
+		end
+	end
+
+	local spawn_dy
+	if (config.gamesettings.spawn_positions == 1) then
+		spawn_dy = (
+			self.spawn_above_field and 2 or 0
+		)
+	else
+		spawn_dy = (
+			config.gamesettings.spawn_positions == 3 and
+			2 or 0
+		)
+	end
+
 	local piece = Piece(data.shape, data.orientation - 1, {
-		x = spawn_positions[data.shape].x,
-		y = spawn_positions[data.shape].y
+		x = spawn_x and spawn_x or spawn_positions[data.shape].x,
+		y = spawn_positions[data.shape].y - spawn_dy
 	}, self.block_offsets, 0, 0, data.skin, colours[data.shape], big)
 
 	self:onPieceCreate(piece)
 	if irs then
-		if inputs.rotate_left or inputs.rotate_left2 or
-		   inputs.rotate_right or inputs.rotate_right2 or
-		   inputs.rotate_180 then
+		self:rotatePiece(inputs, piece, grid, {}, true)
+		if (data.orientation - 1) ~= piece.rotation then
 			playSE("irs")
 		end
-		self:rotatePiece(inputs, piece, grid, {}, true)
 	end
 	self:dropPiece(inputs, piece, grid, gravity, drop_speed, drop_locked, hard_drop_locked)
+	if (buffer_hard_drop and config.gamesettings.buffer_lock == 1) then
+		piece:dropToBottom(grid)
+		if lock_on_hard_drop then piece.locked = true end
+	end
+	if (buffer_soft_drop and lock_on_soft_drop and piece:isDropBlocked(grid) and config.gamesettings.buffer_lock == 1) then
+		piece.locked = true
+	end
 	return piece
 end
 
@@ -216,7 +289,7 @@ function Ruleset:processPiece(
 	inputs, piece, grid, gravity, prev_inputs,
 	move, lock_delay, drop_speed,
 	drop_locked, hard_drop_locked,
-	hard_drop_enabled, additive_gravity
+	hard_drop_enabled, additive_gravity, classic_lock
 )
 
 	local synchroes_allowed = ({not self.world, true, false})[config.gamesettings.synchroes_allowed]
@@ -232,7 +305,7 @@ function Ruleset:processPiece(
 		inputs, piece, grid, gravity, drop_speed, drop_locked, hard_drop_locked,
 		hard_drop_enabled, additive_gravity
 	)
-	self:lockPiece(piece, grid, lock_delay)
+	self:lockPiece(piece, grid, lock_delay, classic_lock)
 end
 
 function Ruleset:onPieceMove(piece) end

tetris/rulesets/standard.lua

@@ -0,0 +1,102 @@
+local Piece = require 'tetris.components.piece'
+local Ruleset = require 'tetris.rulesets.standard_exp'
+
+local SRS = Ruleset:extend()
+
+SRS.name = "Guideline SRS"
+SRS.hash = "Standard"
+SRS.softdrop_lock = false
+SRS.harddrop_lock = true
+
+SRS.MANIPULATIONS_MAX = 15
+
+SRS.wallkicks_line = {
+	[0]={
+		[1]={{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=0},{x=2,y=0},{x=0,y=1}},
+		[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=2},{x=0,y=-1},{x=0,y=-2},{x=-1,y=0}},
+	},
+	[2]={
+		[0]={{x=1,y=0},{x=2,y=0},{x=-1,y=0},{x=-2,y=0},{x=0,y=-1}},
+		[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=2},{x=0,y=-1},{x=0,y=-2},{x=1,y=0}},
+		[2]={{x=-2, y=0}, {x=1, y=0}, {x=-2, y=1}, {x=1, y=-2}},
+	},
+};
+
+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:checkNewLow(piece)
+	for _, block in pairs(piece:getBlockOffsets()) do
+		local y = piece.position.y + block.y
+		if y > piece.lowest_y then
+			piece.manipulations = 0
+			piece.rotations = 0
+			piece.lowest_y = y
+		end
+	end
+end
+
+function SRS:onPieceDrop(piece, grid)
+	self:checkNewLow(piece)
+	if piece.manipulations >= self.MANIPULATIONS_MAX and piece:isDropBlocked(grid) then
+		piece.locked = true
+	else
+		piece.lock_delay = 0 -- step reset
+	end
+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 >= SRS.MANIPULATIONS_MAX then
+			piece.locked = true
+		end
+	end
+end
+
+function SRS:onPieceRotate(piece, grid)
+	piece.lock_delay = 0 -- rotate reset
+	self:checkNewLow(piece)
+	piece.manipulations = piece.manipulations + 1
+	if piece:isDropBlocked(grid) then
+		if piece.manipulations >= SRS.MANIPULATIONS_MAX then
+			piece.locked = true
+		end
+	end
+end
+
+return SRS

tetris/rulesets/standard_exp.lua

@@ -3,46 +3,37 @@ local Ruleset = require 'tetris.rulesets.arika_srs'
 
 local SRS = Ruleset:extend()
 
-SRS.name = "Guideline SRS"
-SRS.hash = "Standard"
+SRS.name = "SRS-X"
+SRS.hash = "StandardEXP"
+SRS.world = true
+SRS.colourscheme = {
+	I = "C",
+	L = "O",
+	J = "B",
+	S = "G",
+	Z = "R",
+	O = "Y",
+	T = "M",
+}
+SRS.softdrop_lock = true
+SRS.harddrop_lock = false
 
 SRS.enable_IRS_wallkicks = true
 
-SRS.MANIPULATIONS_MAX = 15
+SRS.MANIPULATIONS_MAX = 24
+SRS.ROTATIONS_MAX = 12
 
-function SRS:check_new_low(piece)
+function SRS:checkNewLow(piece)
 	for _, block in pairs(piece:getBlockOffsets()) do
 		local y = piece.position.y + block.y
 		if y > piece.lowest_y then
-			piece.manipulations = 0
+			--piece.manipulations = 0
+			--piece.rotations = 0
 			piece.lowest_y = y
 		end
 	end
 end
 
-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)
@@ -72,11 +63,12 @@ end
 
 function SRS:onPieceCreate(piece, grid)
 	piece.manipulations = 0
+	piece.rotations = 0
 	piece.lowest_y = -math.huge
 end
 
 function SRS:onPieceDrop(piece, grid)
-	self:check_new_low(piece)
+	self:checkNewLow(piece)
 	if piece.manipulations >= self.MANIPULATIONS_MAX and piece:isDropBlocked(grid) then
 		piece.locked = true
 	else
@@ -88,7 +80,7 @@ function SRS:onPieceMove(piece, grid)
 	piece.lock_delay = 0 -- move reset
 	if piece:isDropBlocked(grid) then
 		piece.manipulations = piece.manipulations + 1
-		if piece.manipulations >= self.MANIPULATIONS_MAX then
+		if piece.manipulations >= SRS.MANIPULATIONS_MAX then
 			piece.locked = true
 		end
 	end
@@ -96,9 +88,9 @@ end
 
 function SRS:onPieceRotate(piece, grid)
 	piece.lock_delay = 0 -- rotate reset
-	self:check_new_low(piece)
-	piece.manipulations = piece.manipulations + 1
-    if piece.manipulations >= self.MANIPULATIONS_MAX then
+	self:checkNewLow(piece)
+    if piece.rotations >= self.ROTATIONS_MAX then
+		piece.rotations = piece.rotations + 1
 		piece:moveInGrid({ x = 0, y = 1 }, 1, grid)
         if piece:isDropBlocked(grid) then
             piece.locked = true

tetris/rulesets/ti_srs.lua

@@ -4,7 +4,7 @@ local Ruleset = require 'tetris.rulesets.ruleset'
 local SRS = Ruleset:extend()
 
 SRS.name = "Ti-World"
-SRS.hash = "Bad I-kicks"
+SRS.hash = "StandardTI"
 SRS.world = true
 SRS.colourscheme = {
 	I = "C",
@@ -89,22 +89,22 @@ SRS.block_offsets = {
 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}},
+		[2]={{x=1,y=0},{x=2,y=0},{x=1,y=1},{x=2,y=1},{x=-1,y=0},{x=-2,y=0},{x=-1,y=1},{x=-2,y=1},{x=0,y=-1},{x=3,y=0},{x=-3,y=0}},
 		[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}},
+		[3]={{x=0,y=1},{x=0,y=2},{x=-1,y=1},{x=-1,y=2},{x=0,y=-1},{x=0,y=-2},{x=-1,y=-1},{x=-1,y=-2},{x=1,y=0},{x=0,y=3},{x=0,y=-3}},
 	},
 	[2]={
-		[0]={{x=0, y=1}, {x=0, y=-1}},
+		[0]={{x=-1,y=0},{x=-2,y=0},{x=-1,y=-1},{x=-2,y=-1},{x=1,y=0},{x=2,y=0},{x=1,y=-1},{x=2,y=-1},{x=0,y=1},{x=-3,y=0},{x=3,y=0}},
 		[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}},
+		[1]={{x=0,y=1},{x=0,y=2},{x=1,y=1},{x=1,y=2},{x=0,y=-1},{x=0,y=-2},{x=1,y=-1},{x=1,y=-2},{x=-1,y=0},{x=0,y=3},{x=0,y=-3}},
 		[2]={{x=-1, y=0}, {x=-1, y=1}, {x=0, y=-2}, {x=-1, y=-2}},
 	},
 };
@@ -112,22 +112,22 @@ SRS.wallkicks_3x3 = {
 SRS.wallkicks_line = {
 	[0]={
 		[1]={{x=-2, y= 0}, {x= 1, y= 0}, {x= 1, y=-2}, {x=-2, y= 1}},
-		[2]={},
+		[2]={{x=-1,y=0},{x=-2,y=0},{x=1,y=0},{x=2,y=0},{x=0,y=1}},
 		[3]={{x= 2, y= 0}, {x=-1, 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]={},
+		[3]={{x=0,y=1},{x=0,y=2},{x=0,y=-1},{x=0,y=-2},{x=-1,y=0}},
 	},
 	[2]={
-		[0]={},
+		[0]={{x=1,y=0},{x=2,y=0},{x=-1,y=0},{x=-2,y=0},{x=0,y=-1}},
 		[1]={{x=-2, y= 0}, {x= 1, y= 0}, {x=-2, y=-1}, {x= 1, y= 1}},
 		[3]={{x= 2, y= 0}, {x=-1, y= 0}, {x= 2, y=-1}, {x=-1, y= 1}},
 	},
 	[3]={
 		[0]={{x=-2, y= 0}, {x= 1, y= 0}, {x=-2, y=-1}, {x= 1, y= 2}},
-		[1]={},
+		[1]={{x=0,y=1},{x=0,y=2},{x=0,y=-1},{x=0,y=-2},{x=1,y=0}},
 		[2]={{x= 1, y= 0}, {x=-2, y= 0}, {x= 1, y=-2}, {x=-2, y= 1}},
 	},
 };
@@ -192,12 +192,6 @@ function SRS:onPieceRotate(piece, grid)
 	end
 end
 
-function SRS:get180RotationValue() 
-	if config.gamesettings.world_reverse == 1 then
-		return 1
-	else
-		return 3
-	end
-end
+function SRS:get180RotationValue() return 3 end
 
 return SRS