Game settings screen, and minor fix on discordRPC

- Uses BG previously from the input config screen, which has gotten a new BG
- Minor tweak on the input config screen to display all inputs names regardless of if they are bound or not
- Added Mod1 function to `funcs.lua`, may be useful again sometime
- Added game settings
  * Manual locking (per gamemode, per ruleset, on harddrop or on softdrop)
  * Piece colours (per ruleset, TTC or Arika)
  * World Reverse toggle
- Moved the discordRPC `libs/` directory, as it's a third party library
- Edited the `discordRPC.lua` file to look for the dll at the right place regardless of how you run the game (until we fuse it that is)

This should have probably been done in several commits, sorry about that

tetris/rulesets/arika.lua

@@ -110,7 +110,7 @@ function ARS:onPieceDrop(piece, grid)
 	piece.lock_delay = 0 -- step reset
 end
 
-function ARS:get180RotationValue() return config["reverse_rotate"] and 1 or 3 end
+function ARS:get180RotationValue() return 3 end
 function ARS:getDefaultOrientation() return 3 end  -- downward facing pieces by default
 
 return ARS

tetris/rulesets/arika_ace.lua

@@ -172,7 +172,7 @@ function ARS:onPieceRotate(piece, grid)
 	end
 end
 
-function ARS:get180RotationValue() return config["reverse_rotate"] and 1 or 3 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

@@ -5,6 +5,18 @@ local SRS = Ruleset:extend()
 
 SRS.name = "ACE-SRS"
 SRS.hash = "ACE Standard"
+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.enable_IRS_wallkicks = true
 

tetris/rulesets/arika_ti.lua

@@ -151,7 +151,7 @@ function ARS:onPieceDrop(piece, grid)
 	piece.lock_delay = 0 -- step reset
 end
 
-function ARS:get180RotationValue() return config["reverse_rotate"] and 1 or 3 end
+function ARS:get180RotationValue() return 3 end
 function ARS:getDefaultOrientation() return 3 end  -- downward facing pieces by default
 
 return ARS

tetris/rulesets/cambridge.lua

@@ -5,6 +5,7 @@ local CRS = Ruleset:extend()
 
 CRS.name = "Cambridge"
 CRS.hash = "Cambridge"
+CRS.world = true
 
 CRS.spawn_positions = {
 	I = { x=5, y=4 },
@@ -362,6 +363,10 @@ function CRS:attemptRotate(new_inputs, piece, grid, initial)
 	end
 
 	if rot_dir == 0 then return end
+    
+    if self.world and config.gamesettings.world_reverse == 2 then
+        rot_dir = 4 - rot_dir
+    end
 
 	local new_piece = piece:withRelativeRotation(rot_dir)
 	self:attemptWallkicks(piece, new_piece, rot_dir, grid)

tetris/rulesets/ruleset.lua

@@ -6,6 +6,20 @@ local Ruleset = Object:extend()
 Ruleset.name = ""
 Ruleset.hash = ""
 
+-- Arika-type ruleset defaults
+Ruleset.world = false
+Ruleset.colourscheme = {
+    I = "R",
+    L = "O",
+    J = "B",
+    S = "M",
+    Z = "G",
+    O = "Y",
+    T = "C",
+}
+Ruleset.softdrop_lock = true
+Ruleset.harddrop_lock = false
+
 Ruleset.enable_IRS_wallkicks = false
 
 -- Component functions.
@@ -39,6 +53,9 @@ function Ruleset:attemptRotate(new_inputs, piece, grid, initial)
 	end
 
 	if rot_dir == 0 then return end
+    if self.world and config.gamesettings.world_reverse == 2 then
+        rot_dir = 4 - rot_dir
+    end
 
 	local new_piece = piece:withRelativeRotation(rot_dir)
 
@@ -117,10 +134,12 @@ function Ruleset:initializePiece(
 	else
 		spawn_positions = self.spawn_positions
 	end
+    local colours = ({self.colourscheme, ColourSchemes.Arika, ColourSchemes.TTC})[config.gamesettings.piece_colour]
+    
 	local piece = Piece(data.shape, data.orientation - 1, {
 		x = spawn_positions[data.shape].x,
 		y = spawn_positions[data.shape].y
-	}, self.block_offsets, 0, 0, data.skin, big)
+	}, self.block_offsets, 0, 0, data.skin, colours[data.shape], big)
 
 	self:onPieceCreate(piece)
 	self:rotatePiece(inputs, piece, grid, {}, true)

tetris/rulesets/standard_exp.lua

@@ -5,6 +5,18 @@ local SRS = Ruleset:extend()
 
 SRS.name = "Guideline SRS"
 SRS.hash = "Standard"
+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.enable_IRS_wallkicks = true
 

tetris/rulesets/ti_srs.lua

@@ -5,6 +5,18 @@ local SRS = Ruleset:extend()
 
 SRS.name = "Ti-World"
 SRS.hash = "Bad I-kicks"
+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.enable_IRS_wallkicks = true