Initial

Code/OS/Updater.cs

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+using Flowframes.Forms;
+using Flowframes.IO;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Flowframes.OS
+{
+    class Updater
+    {
+        public static string latestVerUrl = "https://dl.nmkd.de/flowframes/exe/latest.txt";
+
+        public static int GetInstalledVer()
+        {
+            return Program.version;
+        }
+
+        public static int GetLatestVer ()
+        {
+            var client = new WebClient();
+            return client.DownloadString(latestVerUrl).GetInt();
+        }
+
+        public static async Task UpdateTo (int version, UpdaterForm form = null)
+        {
+            Logger.Log("Updating to v" + version, true);
+            string savePath = Path.Combine(IOUtils.GetExeDir(), $"FlowframesV{version}");
+            try
+            {
+                var client = new WebClient();
+                client.DownloadProgressChanged += async (sender, args) =>
+                {
+                    if (form != null && (args.ProgressPercentage % 5 == 0))
+                    {
+                        Logger.Log("Downloading update... " + args.ProgressPercentage, true);
+                        form.SetProgLabel(args.ProgressPercentage, $"Downloading latest version... {args.ProgressPercentage}%");
+                        await Task.Delay(20);
+                    }
+                };
+                client.DownloadFileCompleted += (sender, args) =>
+                {
+                    form.SetProgLabel(100f, $"Downloading latest version... 100%");
+                };
+                await client.DownloadFileTaskAsync(new Uri($"https://dl.nmkd.de/flowframes/exe/{version}/Flowframes.exe"), savePath);
+            }
+            catch (Exception e)
+            {
+                MessageBox.Show("Error: Failed to download update.\n\n" + e.Message, "Error");
+                Logger.Log("Updater Error during download: " + e.Message, true);
+                return;
+            }
+            try
+            {
+                Logger.Log("Installing v" + version, true);
+                string runningExePath = IOUtils.GetExe();
+                string oldExePath = runningExePath + ".old";
+                IOUtils.TryDeleteIfExists(oldExePath);
+                File.Move(runningExePath, oldExePath);
+                File.Move(savePath, runningExePath);
+            }
+            catch (Exception e)
+            {
+                MessageBox.Show("Error: Failed to install update.\n\n" + e.Message, "Error");
+                Logger.Log("Updater Error during install: " + e.Message, true);
+                return;
+            }
+            form.SetProgLabel(101f, $"Update downloaded.");
+            await Task.Delay(20);
+            MessageBox.Show("Update was installed!\nFlowframes will now close. Restart it to use the new version.", "Message");
+            Application.Exit();
+        }
+
+        public static async Task AsyncUpdateCheck ()
+        {
+            var client = new WebClient();
+            var latestVer = await client.DownloadStringTaskAsync(latestVerUrl);
+            int latest = latestVer.GetInt();
+            int installed = GetInstalledVer();
+
+            if (installed != latest)
+                Logger.Log("An update for Flowframes is available! Download it using the Updater.");
+            else
+                Logger.Log("Flowframes is up to date.");
+        }
+    }
+}