View difference between Paste ID: cF10xgKM and 35rsZnmF

 -- Used with "BizHawk" emulator - load ROM -> Tools -> Lua Console -> Script -> Open Script -> double-click until green play sign
 
 -- Enable or disable the overlay with [R+SELECT]. Haven't played with this yet, so
 -- you may end up seeing overlay popups during the normal game at odd times.
 
 -- mod type for offsets, works off of the 'rom name' (what it says in title bar/saves games as)
 -- if your rom isn't detected just add it in this format (including the , and any " marks):
 -- ["ROM NAME"] = romtype,
 -- where romtype is one of these: nil, "ROTDS", "BNW"
 -- any other romtype will use nil (vanilla) settings
 
 local MODS = {
 
 ["Final Fantasy III (USA)"]     = nil,     -- vanilla, default. -- means comments
 ["Return of the Dark Sorcerer"] = "ROTDS", -- uses rotds extended item/spell names
 ["Brave New World 2.0"]         = "BNW",   -- mod'd dance chance
 ["FFVI T Edition"]              = "japan", -- nothing yet, the version is stripped further down
 
 }
 
 --- =======================
 --- all settings are above this
 --- =======================
 
 
 
 local romname = gameinfo.getromname()
 
 -- t-edition has ever-changing patch number on the end
 if (romname:sub(1,14) == "FFVI T Edition") then romname = "FFVI T Edition" end
 local MOD_TYPE = MODS[romname]
 function initialize()
 	 gui.defaultPixelFont("fceux")
-	local x = bit.band(memory.readbyte(0x0A,"WRAM"),0x40)
+
-	if (x > 0) then return true end
+
-	local y = bit.band(memory.readbyte(0x0B,"WRAM"),0x40)
+
-	if (y > 0) then return true end
+
 		espers = { 0x26F6E1, 8, 54 },
 	   attacks = { 0x26F7B9, 10, 81 },
 	espattacks = { 0x26FE8F, 10, 256 },
 		dances = { 0x26FF9D, 12, 283 },
 }
 	offMonsterData = 0xF0000
 	lenMonsterData = 32
 	offItemNames = 0x12B300
 	lenItemNames = 13
 	if (MOD_TYPE == "ROTDS") then
 		offNames.spells = { 0x316100, 9, 0 }
 		offNames.espers = { 0x3162E6, 12, 54 }
 		offNames.attacks = { 0x31645E, 16, 81 }
 		offNames.espattacks = { 0x316DDE, 16, 256 }
 		offNames.dances = { 0x3170FE, 13, 283 }
 		lenItemNames = 13
 	end
 end
 initialize()
 
 -- maps each font byte to the appropriate character, FF should break loop, space for anything else
 local fontMap = { [0x80] = "A", [0x81] = "B", [0x82] = "C", [0x83] = "D", [0x84] = "E", [0x85] = "F", [0x86] = "G", [0x87] = "H", [0x88] = "I", [0x89] = "J", [0x8A] = "K", [0x8B] = "L", [0x8C] = "M", [0x8D] = "N", [0x8E] = "O", [0x8F] = "P", [0x90] = "Q", [0x91] = "R", [0x92] = "S", [0x93] = "T", [0x94] = "U", [0x95] = "V", [0x96] = "W", [0x97] = "X", [0x98] = "Y", [0x99] = "Z", [0x9A] = "a", [0x9B] = "b", [0x9C] = "c", [0x9D] = "d", [0x9E] = "e", [0x9F] = "f", [0xA0] = "g", [0xA1] = "h", [0xA2] = "i", [0xA3] = "j", [0xA4] = "k", [0xA5] = "l", [0xA6] = "m", [0xA7] = "n", [0xA8] = "o", [0xA9] = "p", [0xAA] = "q", [0xAB] = "r", [0xAC] = "s", [0xAD] = "t", [0xAE] = "u", [0xAF] = "v", [0xB0] = "w", [0xB1] = "x", [0xB2] = "y", [0xB3] = "z", [0xB4] = "0", [0xB5] = "1", [0xB6] = "2", [0xB7] = "3", [0xB8] = "4", [0xB9] = "5", [0xBA] = "6", [0xBB] = "7", [0xBC] = "8", [0xBD] = "9", [0xBE] = "!", [0xBF] = "?", [0xC3] = "'", [0xC4] = "-", [0xC5] = ".", }
 
 local monSpecials = {
 [0x00]="+Darkness", [0x01]="+Zombie", [0x02]="+Poison", [0x03]="+Magitek", [0x04]="+Invis", [0x05]="+Imp", [0x06]="+Stone", [0x07]="+Death", [0x08]="+Doom", [0x09]="+Critical", [0x0A]="+Blink", [0x0B]="+Silence", [0x0C]="+Berserk", [0x0D]="+Confuse", [0x0E]="+Sap", [0x0F]="+Sleep", [0x10]="+Dance", [0x11]="+Regen", [0x12]="+Slow", [0x13]="+Haste", [0x14]="+Stop", [0x15]="+Shell", [0x16]="+Protect", [0x17]="+Reflect", [0x18]="+Rage", [0x19]="+Frozen", [0x1A]="+Reraise", [0x1B]="+Morph", [0x1C]="+Spellcast", [0x1D]="+Flee", [0x1E]="+Interceptor", [0x1F]="+Float", [0x20]=" Damage + 50%", [0x21]=" Damage +100%", [0x22]=" Damage +150%", [0x23]=" Damage +200%", [0x24]=" Damage +250%", [0x25]=" Damage +300%", [0x26]=" Damage +350%", [0x27]=" Damage +400%", [0x28]=" Damage +450%", [0x29]=" Damage +500%", [0x2A]=" Damage +550%", [0x2B]=" Damage +600%", [0x2C]=" Damage +650%", [0x2D]=" Damage +700%", [0x2E]=" Damage +750%", [0x2F]=" Damage +800%",
 }
 function hexformat(input) return string.format("%02x", input):upper() end
 function trim(out) return (out:gsub("^%s*(.-)%s*$", "%1")) end
 -- skipFF to anything to prevent breaking on FF
 function translate(byteTable,skipFF)
 	local out = ""
 	local start = 0
 	if (not byteTable[start]) then start = 1 end
 	for i=start,#byteTable do
 		local hex = byteTable[i]
 		if ((hex == 0xFF or not hex) and not skipFF) then break end
 		if (fontMap[hex]) then
 			out = out .. fontMap[hex]
 		else
 			out = out .. " "
 		end
 	end
 	out = trim(out)
 	return out
 end
 function getStatuses(byteA,byteB,byteC)
 	local statuses = { {"Blind", "Zombi", "Poisn", "M-Tek", "Invis", "Imp  ", "Stone", "Death"},
 					   {"Doom ", "Hurt ", "Image", "Mute ", "Brsrk", "Muddl", "Sap  ", "Sleep"},
 					   {"Float", "Regen", "Slow ", "Haste", "Stop ", "Shell", "Safe ", "Rflct"} }
 	local outStatuses = {}
 	for _,byte in pairs({ byteA, byteB, byteC }) do
     	for i=1,#statuses[_] do
 			if (bit.band(byte,bit.lshift(1,(i-1))) > 0) then
 				outStatuses[#outStatuses+1] = statuses[_][i]
 			end
 		end
 	end
 	local out = ""
 	for _,v in pairs(outStatuses) do
 		out = out .. v .. " "
 		if (_ % 6 == 0) then out = out .. "\n      " end
 	end
 	return trim(out)
 end
 function getElements(byte)
 	local elements = { "FIR", "ICE", "THN", "POI", "WND", "HLY", "ERT", "WTR" }
 	local outElements = {}
     for i=1,#elements do
 		if (bit.band(byte,bit.lshift(1,(i-1))) > 0) then
 			outElements[#outElements+1] = elements[i]
 		end
 	end
 	local out = ""
 	for _,v in pairs(outElements) do
 		out = out .. v .. " "
 		--if (_ % 5 == 0) then out = out .. "\n" end
 	end
 	return trim(out)
 end
 function getSpellName(index)
 	local type = nil
 	if (index >= offNames.dances[3]) then type = offNames.dances
 	elseif (index >= offNames.espattacks[3]) then type = offNames.espattacks
 	elseif (index >= offNames.attacks[3]) then type = offNames.attacks
 	elseif (index >= offNames.espers[3]) then type = offNames.espers
 	else type = offNames.spells
 	end
 	local beginOffset = type[1]
 	local textLength = type[2]
 	local startSkillIndex = type[3]
 	local firstByte = beginOffset + ((index-startSkillIndex)*textLength)
 	local out = memory.readbyterange(firstByte,textLength,"CARTROM")
 	out = translate(out)
 	return out
 end
 function getItemName(index)
 	local out = memory.readbyterange(offItemNames + (index*lenItemNames),lenItemNames,"CARTROM")
 	out = translate(out,"don't-break-on-FF")
 	if (out == "") then out = "(None)" end
 	return out
 end
 local cursor_state = nil
 local inputs = { { nil, nil, nil, nil, "R", "L", "X", "A", },
 				 { "Right", "Left", "Down", "Up", "Start", "Select", "Y", "B" } }
 local keymap = {}
 local keymapLastFrame = {}
 
 function buttonHandler()
 	-- X is at 0x0A as the 7th bit (0x40), Y is at 0x0B same
 	local input1 = memory.readbyte(0x04,"WRAM")
 	local input2 = memory.readbyte(0x05,"WRAM")
 	if (input1 == 0x00 and input2 == 0x00) then
 		input1 = memory.readbyte(0x0A)
 		input2 = memory.readbyte(0x0B)
 	end
 	keymapLastFrame = keymap
 	keymap = {}
 	for _,byte in pairs({ input1, input2 }) do
     	for i=1,#inputs[_] do
 			if (inputs[_][i] ~= nil) then
 				if (bit.band(byte,bit.lshift(1,(i-1))) > 0) then
 					keymap[inputs[_][i]] = true
 				end
 			end
 		end
 	end
 end
 
 function checkIfHelpButton()
 	-- X is at 0x0A as the 7th bit (0x40), Y is at 0x0B same
 	if (keymap["X"] or keymap["Y"] or keymapLastFrame["X"] or keymapLastFrame["Y"]) then return true end
 	return false
 end
 
 local enabledToggle = true
 local messageStartTime = 0
 local messageText = ""
 local messageDuration = 0
 function disabledCheck()
 	if (keymap["Select"] and keymap["R"] and not (keymapLastFrame["R"] and keymapLastFrame["Select"])) then
 		enabledToggle = not enabledToggle
 		if (enabledToggle) then message("Overlay enabled.",4)
 		else message("Overlay disabled.", 4)
 		end
 	end
 end
 function message(msg,duration)
 	messageStartTime = os.time()
 	messageText = msg
 	messageDuration = duration
 end
 function messageCheck()
 	messageTime = os.time()
 	if (messageTime < (messageStartTime + messageDuration)) then
 		gui.drawText(0,210,messageText,"white","black")
 	end
 end
 function processEnemySpecial(idxTargetMonster)
 	local monStats = memory.readbyterange(offMonsterData + (lenMonsterData * idxTargetMonster),lenMonsterData,"CARTROM")
 	local specialAttack = monStats[0x1F]
 	local noEvade = (bit.band(specialAttack,0x80) > 0)
 	local noDamage = (bit.band(specialAttack,0x40) > 0)
 	specialAttack = bit.band(specialAttack,0x3F)
 	specialAttack = monSpecials[specialAttack]
 	if (specialAttack) then
 		if (noEvade or noDamage) then
 			specialAttack = specialAttack..")\n(Special:"
 			if (noEvade) then specialAttack = specialAttack .. "Can't dodge" end
 			if (noEvade and noDamage) then specialAttack = specialAttack .. " & " end
 			if (noDamage) then specialAttack = specialAttack .. "No damage" end
 		end
 	else
 		specialAttack = "+???"
 	end
 	return "(Special:Attack"..specialAttack..")"
 end
 local hintLoc = { x = 8, y = 142, height = 9 }
 function printHint(msg)
 	local _, extraLineCount = msg:gsub('\n', '\n')
 	gui.pixelText(hintLoc.x,hintLoc.y-(hintLoc.height * extraLineCount),msg,"white")
 end
 function doStealStuff(targetted_monster)
 	local stealLoc = 0x3310 + (2*targetted_monster)
 	local rare_steal = memory.read_u8(stealLoc)
 	local common_steal = memory.read_u8(stealLoc+1)
 	local itemNames = { getItemName(common_steal), getItemName(rare_steal) }
 	if (common_steal == 0xFF) then itemNames[1] = "---" end
 	if (rare_steal   == 0xFF) then itemNames[2] = "---" end
 	local out = "Nothing to steal!"
 	if (itemNames[1] ~= "---" or itemNames[2] ~= "---") then
 		out = "Common Steal (7/8): "..itemNames[1].."\n  Rare Steal (1/8): "..itemNames[2]
 	end
 	return out
 end
 function main()
 	disabledCheck()
 	messageCheck()
 	if (not enabledToggle) then return end
 
 
 	local paused = memory.read_u8(0x62ab)
 	if (paused > 0) then
 -- should probably get a check so it ONLY works in battle
 --[[
 		-- show enemy health if paused
 		for i=0,5 do
 			local hp = memory.read_u16_le(0x3bfc + (2*i))
 			if (hp > 0) then
 				local x = memory.read_u16_le(0x80c3 + (2*i)) -- monster loc x in pixels
 				local y = memory.read_u16_le(0x80cf + (2*i)) -- monster loc y in pixels
 				gui.drawText(x,y,hp)
 			end
 		end
 ]]--
 	end
 
 	-- reads memory of 'cursor state' which appears to be the type of command being hovered over
 	local last_cursor_state = cursor_state
 	cursor_state = memory.read_u8(0x7bc2)
 	local which_character = memory.read_u8(0x62ca) -- offsets cursor info
 	local idxRecentCommand = memory.read_u8(0x890F + which_character) -- the command we're hovering on main menu
 	local recentCommandType = memory.read_u8(0x202E + (12*which_character) + (3*idxRecentCommand))
 	--23 = scrolling page up or down
 	if (cursor_state == 23 or cursor_state == 24) then cursor_state = last_cursor_state end
 	--30 = rage
 	if (cursor_state == 30) then
 		local rages = memory.readbyterange(0x257E,256)
 		local battleMenuColumn = 0x892F -- row and scrolled are derived from this (+4/-4)
 		local column = memory.read_u8(battleMenuColumn + which_character)
 		local row = memory.read_u8(battleMenuColumn + which_character + 4)
 		local scrolled = memory.read_u8(battleMenuColumn + which_character - 4)
 		local hoverRage = rages[((row+scrolled)*2) + column]
 		local menuClosing = (memory.read_u8(0x7BCB) > 0) -- get rid of little text-blink as rage menu closes
 		if (hoverRage < 255 and not menuClosing) then
 			local rageLoc = 0xF4600 + (2*hoverRage)
 			local rageAttacks = { memory.readbyte(rageLoc,"CARTROM"), memory.readbyte(rageLoc+1,"CARTROM") }
 			for i=1,2 do rageAttacks[i] = getSpellName(rageAttacks[i]) end --.."("..rageAttacks[i]..")" end
 			local monStats = memory.readbyterange(offMonsterData + (lenMonsterData * hoverRage),lenMonsterData,"CARTROM")
 			local out = "Rage: "..rageAttacks[1] .. "/" .. rageAttacks[2]
 			if (rageAttacks[2] == "Special" or rageAttacks[1] == "Special") then
 				specialAttack = processEnemySpecial(hoverRage)
 				out = specialAttack .. "\n"..out
 			end
 			printHint(out)
 			if (checkIfHelpButton()) then
 				local blockedStatuses = { monStats[0x14], monStats[0x15], monStats[0x16] }
 				local appliedStatuses = { monStats[0x1B], monStats[0x1C], monStats[0x1D] }
 				local absorbElements = monStats[0x17]
 				local immuneElements = monStats[0x18]
 				local weakElements = monStats[0x19]
 				local bytes = ""
 				for i=0,#monStats do
 					bytes = bytes .. " " .. hexformat(monStats[i])
 					if ((i+1) % 8 == 0) then bytes = bytes .. "\n" end
 				end
 				local infoText = ""
 				blockedStatuses = getStatuses(blockedStatuses[1],blockedStatuses[2],blockedStatuses[3])
 				appliedStatuses = getStatuses(appliedStatuses[1],appliedStatuses[2],appliedStatuses[3])
 				if (#appliedStatuses > 0) then infoText = infoText.."GAINS:"..appliedStatuses.."\n" end
 				if (#blockedStatuses > 0) then infoText = infoText.. "BLOCK:"..blockedStatuses.."\n" end
 				absorbElements = getElements(absorbElements)
 				immuneElements = getElements(immuneElements)
 				weakElements = getElements(weakElements)
 				if (#absorbElements > 0) then infoText = infoText.. "ABS:"..absorbElements.."\n" end
 				if (#immuneElements > 0) then infoText = infoText.. "IMM:"..immuneElements.."\n" end
 				if (#weakElements > 0) then infoText = infoText.. "WEAK:"..weakElements.."\n" end
 				infoText = trim(infoText)
 				gui.pixelText(0,0,string.format("%-99s",infoText),"white")
 			end
 		end
 	-- dances
 	elseif (cursor_state == 33) then
 		local dances = memory.readbyterange(0x267E,8)
 		local battleMenuColumn = 0x8937 -- row and scrolled are derived from this (+4/-4)
 		local column = memory.read_u8(battleMenuColumn + which_character)
 		local row = memory.read_u8(battleMenuColumn + which_character + 4)
 		local scrolled = memory.read_u8(battleMenuColumn + which_character - 4)
 
 		local hoverDance = dances[((row+scrolled)*2) + column]
 		local menuClosing = (memory.read_u8(0x7BCB) > 0) -- get rid of little text-blink as dance menu closes
 		if (hoverDance < 255 and not menuClosing) then
 			local danceLoc = 0xFFE80 + (4*hoverDance)
 			local danceAttacks = { memory.readbyte(danceLoc,"CARTROM"), memory.readbyte(danceLoc+1,"CARTROM"),
 							memory.readbyte(danceLoc+2,"CARTROM"), memory.readbyte(danceLoc+3,"CARTROM") }
 			for i=1,4 do danceAttacks[i] = getSpellName(danceAttacks[i]) end
 			local danceChances = { 7, 6, 2, 1 }
 			if (MOD_TYPE == "BNW") then danceChances = { 7, 5, 3, 1 } end
 			local out = string.format("Dance: (%s/16) %s\n       (%s/16) %s\n       (%s/16) %s\n       (%s/16) %s", danceChances[1], danceAttacks[1], danceChances[2], danceAttacks[2], danceChances[3], danceAttacks[3], danceChances[4], danceAttacks[4])
 			printHint(out)
 		end
 	-- targetting enemies
 	elseif (cursor_state == 0x38) then
 		local targetted_monster = memory.read_u8(0x7B7E)
  		-- only bother if we're actually targetting a monster (ie not an ally)
 		if (targetted_monster > 0) then
 			targetted_monster = (math.log(targetted_monster) / math.log(2))
 			if (recentCommandType == 0x00) then -- fight
 				local weaponPropLoc = 0x3CBC --main, then off
 				weaponPropLoc = weaponPropLoc + (2*which_character)
 				local my_weapons = { memory.read_u8(weaponPropLoc), memory.read_u8(weaponPropLoc + 1) }
 				-- the offhand will be shortcircuited if first passes
 				my_weapons[1] = (bit.band(my_weapons[1],0x10) > 0 and my_weapons[1] < 32)
 				if (my_weapons[1] or (bit.band(my_weapons[2],0x10) > 0 and my_weapons[2] < 32)) then
 					local out = doStealStuff(targetted_monster)
 					local weaponLoc = 0x3CA8
 					weaponLoc = weaponLoc + (2*which_character)
 					local providingWeapon = "ThiefKnife"
 					if (my_weapons[1]) then
 						providingWeapon = getItemName(memory.read_u8(weaponLoc))
 					else -- use off-hand since it wasn't from mainhand
 						providingWeapon = getItemName(memory.read_u8(weaponLoc + 1))
 					end
 					printHint("* Shown due to "..providingWeapon..":\n"..out)
 				end
 			elseif (recentCommandType == 0x05 or recentCommandType == 0x06) then -- we're stealing and targetting enemies
 				printHint(doStealStuff(targetted_monster))
 			elseif (recentCommandType == 0x0D) then --sketch
 				local idxTargetMonster = memory.read_u16_le(0x2001 + (2*targetted_monster))
 				local cantSketchByte = memory.readbyte(offMonsterData + (lenMonsterData * idxTargetMonster) + 0x13,"CARTROM")
 				if (bit.band(cantSketchByte,0x20) > 0) then
 					printHint("Can't sketch!")
 				else
 					local sketchLoc = 0xF4300 + (2*idxTargetMonster)
 					local sketchAttacks = { memory.readbyte(sketchLoc,"CARTROM"), memory.readbyte(sketchLoc+1,"CARTROM") }
 					for i=1,2 do sketchAttacks[i] = getSpellName(sketchAttacks[i]) end
 					local out = "Sketch: (75%) "..sketchAttacks[2] .. "\n        (25%) " .. sketchAttacks[1] ..""
 					if (sketchAttacks[2] == "Special" or sketchAttacks[1] == "Special") then
 						specialAttack = processEnemySpecial(idxTargetMonster)
 						out = specialAttack.."\n"..out
 					end
 					printHint(out)
 				end
 			elseif (recentCommandType == 0x0E) then -- chaos control
 				local idxTargetMonster = memory.read_u16_le(0x2001 + (2*targetted_monster))
 				local cantControlByte = memory.readbyte(offMonsterData + (lenMonsterData * idxTargetMonster) + 0x13,"CARTROM")
 				if (bit.band(cantControlByte,0x80) > 0) then
 					printHint("Can't control!")
 				else
 					local controlLoc = 0xF3D00 + (4*idxTargetMonster)
 					local controlAttacks = { memory.readbyte(controlLoc,"CARTROM"), memory.readbyte(controlLoc+1,"CARTROM"), memory.readbyte(controlLoc+2,"CARTROM"), memory.readbyte(controlLoc+3,"CARTROM") }
 					local hasSpecial = false
 					local namesControlAttacks = {}
 					for i=1,4 do
 						if (controlAttacks[i] ~= 0xFF) then
 							namesControlAttacks[#namesControlAttacks + 1] = getSpellName(controlAttacks[i])
 							if (namesControlAttacks[#namesControlAttacks] == "Special") then hasSpecial = true end
 							if (#namesControlAttacks == 3) then namesControlAttacks[3] = "\n         "..namesControlAttacks[3] end
 						end
 					end
 					local out = "Control: "..table.concat(namesControlAttacks,", ")
 					if (hasSpecial) then
 						specialAttack = processEnemySpecial(idxTargetMonster)
 						out = specialAttack.."\n"..out
 					end
 					printHint(out)
 				end
 			end
 		end
 	end
 end
 
 while true do
 	emu.frameadvance();
 	-- prevent it from doing dumb things while rom isn't even loaded
 	if (romname ~= "Null") then
 		buttonHandler()
 		main()
 	end
 end