Create roterm.lua

roterm.lua

@@ -0,0 +1,90 @@
+local getAPI = function(apiname, apipath, apiurl, doDoFile, doScroll)
+	apipath = fs.combine(fs.getDir(shell.getRunningProgram()), apipath)
+	if (not fs.exists(apipath)) then
+		if doScroll then term.scroll(1) end
+		print(apiname .. " API not found! Downloading...")
+		local prog = http.get(apiurl)
+		if not prog then
+			if doScroll then term.scroll(1) end
+			error("Failed to download " .. apiname .. " API. Abort.")
+			term.setCursorPos(1,1)
+			return
+		end
+		local file = fs.open(apipath,"w")
+		file.write(prog.readAll())
+		file.close()
+	end
+	if doDoFile then
+		return dofile(apipath)
+	else
+		os.loadAPI(apipath)
+	end
+	if not _ENV[fs.getName(apipath)] then
+		if doScroll then term.scroll(1) end
+		error("Failed to load " .. apiname .. " API. Abort.")
+		term.setCursorPos(1,1)
+		return
+	else
+		return _ENV[fs.getName(apipath)]
+	end
+end
+
+local nfte 		= getAPI("NFT Extra", 	"nfte.lua", 	"https://github.com/LDDestroier/NFT-Extra/raw/master/nfte.lua", true)
+local lddterm 	= getAPI("LDDTerm", 	"lddterm.lua", 	"https://github.com/LDDestroier/CC/raw/master/lddterm-cc.lua", 	true)
+
+local scr_x, scr_y = term.getSize()
+
+lddterm.alwaysRender = false
+lddterm.baseTerm = term.current()
+local win = lddterm.newWindow(scr_x, scr_y, 1, 1)
+local t = win.handle
+
+local angle = 0
+
+term.redirect(t)
+
+lddterm.transformation = function(image)
+	local output, adjX, adjY = nfte.rotateImage(image, math.rad(angle))
+	return output
+end
+
+lddterm.drawFunction = function(image, baseTerm)
+	baseTerm.clear()
+	nfte.drawImageCenter(image, nil, nil, baseTerm)
+end
+
+lddterm.cursorTransformation = function(x, y)
+	local originX = math.floor(scr_x / 2)
+	local originY = math.floor(scr_y / 2)
+	local ang = math.rad(angle)
+	return
+		math.floor( 0.5 + (x-originX) * math.cos(ang) - (y-originY) * math.sin(ang) ) + originX,
+		math.floor( 0.5 + (x-originX) * math.sin(ang) + (y-originY) * math.cos(ang) ) + originY
+end
+
+parallel.waitForAny(
+	function()
+		shell.run("/rom/programs/shell.lua")
+	end,
+	function()
+		local evt
+		local tID = os.startTimer(0.05)
+		while true do
+			evt = {os.pullEvent()}
+			if evt[1] == "key" then
+				if evt[2] == keys.pageDown then
+					angle = (angle + 2) % 360
+					lddterm.render(lddterm.transformation, lddterm.drawFunction)
+				elseif evt[2] == keys.pageUp then
+					angle = (angle - 2) % 360
+					lddterm.render(lddterm.transformation, lddterm.drawFunction)
+				end
+			elseif evt[1] == "timer" then
+				if evt[2] == tID then
+					lddterm.render(lddterm.transformation, lddterm.drawFunction)
+					tID = os.startTimer(0.05)
+				end
+			end
+		end
+	end
+)