diff --git a/lddwindow.lua b/lddwindow.lua
new file mode 100644
index 0000000..5421dea
--- /dev/null
+++ b/lddwindow.lua
@@ -0,0 +1,299 @@
+local doGlobalize = false
+local lddwindow = {}
+
+local to_colors = {
+	[" "] = 0,
+	["0"] = colors.white,
+	["1"] = colors.orange,
+	["2"] = colors.magenta,
+	["3"] = colors.lightBlue,
+	["4"] = colors.yellow,
+	["5"] = colors.lime,
+	["6"] = colors.pink,
+	["7"] = colors.gray,
+	["8"] = colors.lightGray,
+	["9"] = colors.cyan,
+	["a"] = colors.purple,
+	["b"] = colors.blue,
+	["c"] = colors.brown,
+	["d"] = colors.green,
+	["e"] = colors.red,
+	["f"] = colors.black,
+}
+local to_blit = {}
+for k,v in pairs(to_colors) do
+	to_blit[v] = k
+end
+
+local stringSub = string.sub
+local stringGsub = string.gsub
+local tableConcat = table.concat
+
+lddwindow.newWindow = function(nativeTerm, x, y, width, height, visible)
+	local output = {
+		info = {
+			buffer = {{},{},{}},
+			x = x,
+			y = y,
+			textColor = "0",
+			backColor = "f",
+			cursorX = 1,
+			cursorY = 1,
+			nativeTerm = nativeTerm or term.current(),
+			width = width,
+			height = height,
+			blink = true,
+			palette = {},
+		}
+	}
+	if visible == nil then
+		output.info.visible = true
+	elseif type(visible) == "boolean" then
+		output.info.visible = visible
+	else
+		output.info.visible = true
+	end
+	
+	local genTblLine = function(char, length)
+		local blankLine = {}
+		for i = 1, length do
+			blankLine[i] = char
+		end
+		return blankLine
+	end
+	
+	for i = 0, 15 do
+--		output.info.palette[2^i] = output.info.nativeTerm.nativePaletteColor(2^i)
+		output.info.palette[2^i] = term.nativePaletteColor(2^i)
+	end
+	
+	local fixBuffer = function()
+		for y = math.max(output.info.height, #output.info.buffer[1]), 1, -1 do
+			if y > output.info.height then
+				output.info.buffer[1][y] = nil
+				output.info.buffer[2][y] = nil
+				output.info.buffer[3][y] = nil
+			else
+				output.info.buffer[1][y] = output.info.buffer[1][y] or {}
+				output.info.buffer[2][y] = output.info.buffer[2][y] or {}
+				output.info.buffer[3][y] = output.info.buffer[3][y] or {}
+				for x = math.max(output.info.width, #(output.info.buffer[1][1] or {})), 1, -1 do
+					if x > output.info.width then
+						output.info.buffer[1][y][x] = nil
+						output.info.buffer[2][y][x] = nil
+						output.info.buffer[3][y][x] = nil
+					else
+						output.info.buffer[1][y][x] = output.info.buffer[1][y][x] or " "
+						output.info.buffer[2][y][x] = output.info.buffer[2][y][x] or output.info.textColor
+						output.info.buffer[3][y][x] = output.info.buffer[3][y][x] or output.info.backColor
+					end
+				end
+			end
+		end
+	end
+	
+	fixBuffer()
+	
+	output.reposition = function(x, y, width, height)
+		output.info.x = tonumber(x) or output.info.x
+		output.info.y = tonumber(y) or output.info.y
+		output.info.width = tonumber(width) or output.info.width
+		output.info.height = tonumber(height) or output.info.height
+		fixBuffer()
+	end
+	
+	output.setCursorPos = function(x, y)
+		output.info.cursorX = x or output.info.cursorX
+		output.info.cursorY = y or output.info.cursorY
+	end
+	
+	output.getCursorPos = function()
+		return output.info.cursorX, output.info.cursorY
+	end
+	
+	output.setCursorBlink = function(blink)
+		output.info.blink = blink and true or false
+	end
+	
+	output.getCursorBlink = function(blink)
+		return output.info.blink
+	end
+	
+	output.isColor = function()
+		return true
+	end
+	output.isColour = output.isColor
+	
+	output.getSize = function()
+		return output.info.width, output.info.height
+	end
+	
+	output.current = function()
+		return output
+	end
+	
+	output.clear = function()
+		for y = 1, output.info.height do
+			output.info.buffer[1][y] = genTblLine(" ", output.info.width)
+			output.info.buffer[2][y] = genTblLine(output.info.textColor, output.info.width)
+			output.info.buffer[3][y] = genTblLine(output.info.backColor, output.info.width)
+		end
+	end
+	
+	output.clearLine = function()
+		if output.info.cursorY >= 1 and output.info.cursorY <= output.info.height then
+			output.info.buffer[1][output.info.cursorY] = genTblLine(" ", output.info.width)
+			output.info.buffer[2][output.info.cursorY] = genTblLine(output.info.textColor, output.info.width)
+			output.info.buffer[3][output.info.cursorY] = genTblLine(output.info.backColor, output.info.width)
+		end
+	end
+	
+	output.setTextColor = function(color)
+		output.info.textColor = to_blit[color]
+	end
+	output.setTextColour = output.setTextColor
+	
+	output.setBackgroundColor = function(color)
+		output.info.backColor = to_blit[color]
+	end
+	output.setBackgroundColour = output.setBackgroundColor
+	
+	output.getTextColor = function()
+		return output.info.textColor
+	end
+	output.getTextColour = output.getTextColor
+	
+	output.getBackgroundColor = function()
+		return output.info.backColor
+	end
+	output.getBackgroundColour = output.getBackgroundColor
+	
+	output.write = function(char)
+		local cx
+		if output.info.cursorY >= 1 and output.info.cursorY <= height then
+			for i = 1, #char do
+				cx = -1 + i + output.info.cursorX
+				if cx >= 1 and cx <= output.info.width then
+					output.info.buffer[1][output.info.cursorY][cx] = stringSub(char, i, i)
+					output.info.buffer[2][output.info.cursorY][cx] = output.info.textColor
+					output.info.buffer[3][output.info.cursorY][cx] = output.info.backColor
+				end
+			end
+		end
+		output.info.cursorX = output.info.cursorX + #char
+	end
+	
+	output.blit = function(char, text, back)
+		local cx
+		assert(#char == #text and #text == #back, "arguments must be same length")
+		if output.info.cursorY >= 1 and output.info.cursorY <= height then
+			for i = 1, #char do
+				cx = -1 + i + output.info.cursorX
+				if cx >= 1 and cx <= output.info.width then
+					output.info.buffer[1][cy][cx] = stringSub(char, i, i)
+					output.info.buffer[2][cy][cx] = stringSub(text, i, i)
+					output.info.buffer[3][cy][cx] = stringSub(back, i, i)
+				end
+			end
+		end
+		output.info.cursorX = output.info.cursorX + #char
+	end
+	
+	output.native = function()
+		if true then
+			return output.info.nativeTerm
+		else
+			return output
+		end
+	end
+	
+	output.nativePaletteColor = output.info.nativeTerm.nativePaletteColor
+	output.nativePaletteColour = output.info.nativeTerm.nativePaletteColour
+	
+	output.setPaletteColor = function(slot, r, g, b)
+		output.info.palette[slot] = {r, g, b}
+	end
+	output.setPaletteColour = output.setPaletteColor
+	
+	output.getPaletteColor = function(slot)
+		return output.info.palette[slot][1], output.info.palette[slot][2], output.info.palette[slot][3]
+	end
+	output.getPaletteColour = output.getPaletteColor
+	
+	output.scroll = function(distance)
+		for y = distance, output.info.height do
+			for c = 1, 3 do
+				output.info.buffer[c][y] = output.info.buffer[c][y + distance] or genTblLine(" ", output.info.width)
+			end
+		end
+	end
+	
+	output.setVisible = function(visible)
+		output.info.visible = visible and true or false
+	end
+	
+	-- draws the window
+	output.render = function(x, y, ...)
+		x = x or output.info.x
+		y = y or output.info.y
+		-- can render to multiple terminals
+		local termList = {...}
+		if output.info.visible then
+			if #termList == 0 then
+				nTerm = nTerm or output.info.nativeTerm
+				for yy = 1, output.info.height do
+					nTerm.setCursorPos(x, -1 + y + yy)
+					nTerm.blit(
+						tableConcat(output.info.buffer[1][yy]),
+						tableConcat(output.info.buffer[2][yy]),
+						tableConcat(output.info.buffer[3][yy])
+					)
+				end
+			else
+				for i = 1, #termList do
+					for yy = 1, output.info.height do
+						termList[i].setCursorPos(x, -1 + y + yy)
+						termList[i].blit(
+							tableConcat(output.info.buffer[1][yy]),
+							tableConcat(output.info.buffer[2][yy]),
+							tableConcat(output.info.buffer[3][yy])
+						)
+					end
+				end
+			end
+		end
+	end
+	
+	-- turns window into an NFT string image
+	output.screenshot = function()
+		local image = ""
+		local tcol, bcol
+		local tchar, bchar = string.char(31), string.char(30)
+		for y = 1, output.info.height do
+			tcol, bcol = "", ""
+			for x = 1, output.info.width do
+				if tcol ~= output.info.buffer[2][y][x] then
+					tcol = output.info.buffer[2][y][x]
+					image = image .. tchar .. tcol
+				end
+				if bcol ~= output.info.buffer[3][y][x] then
+					bcol = output.info.buffer[3][y][x]
+					image = image .. bchar .. bcol
+				end
+				image = image .. output.info.buffer[1][y][x]
+			end
+			if y < output.info.height then
+				image = image .. "\n"
+			end
+		end
+		return image
+	end
+	
+	return output
+end
+
+if doGlobalize then
+	_G.lddwindow = lddwindow
+end
+
+return lddwindow