Added an option to disable diagonal input

scene/game_config.lua

@@ -11,7 +11,8 @@ ConfigScene.options = {
 	{"world_reverse","A Button Rotation", {"Left"				 ,"Auto"		,"Right"}},
 	{"next_se", "Next Piece SFX", {"On", "Off"}},
 	{"das_last_key", "DAS Switch", {"Default", "Instant"}},
-	{"synchroes_allowed", "Synchroes", {"Per ruleset", "On", "Off"}}
+	{"synchroes_allowed", "Synchroes", {"Per ruleset", "On", "Off"}},
+	{"diagonal_input", "Diagonal Input", {"On", "Off"}}
 }
 local optioncount = #ConfigScene.options
 

tetris/modes/gamemode.lua

@@ -100,6 +100,16 @@ function GameMode:update(inputs, ruleset)
 	end
 	if self.completed then return end
 
+	if config.gamesettings.diagonal_input == 2 then
+		if inputs["left"] or inputs["right"] then
+			inputs["up"] = false
+			inputs["down"] = false
+		elseif inputs["up"] or inputs["down"] then
+			inputs["left"] = false
+			inputs["right"] = false
+		end
+	end
+
 	-- advance one frame
 	if self:advanceOneFrame(inputs, ruleset) == false then return end