It's broken.

ShiftOS.Engine/ShiftOS.Engine.csproj

@@ -52,9 +52,6 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>Resources.resx</DependentUpon>
     </Compile>
-    <Compile Include="Terminal\Commands\Hello.cs" />
-    <Compile Include="Terminal\TerminalBackend.cs" />
-    <Compile Include="Terminal\TerminalCommand.cs" />
     <Compile Include="Tools.cs" />
     <Compile Include="WindowManager\InfoboxTemplate.cs">
       <SubType>UserControl</SubType>

ShiftOS.Engine/Terminal/Commands/Hello.cs

@@ -1,21 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace ShiftOS.Engine.Terminal.Commands
-{
-    public class Hello : TerminalCommand
-    {
-        public override string GetName()
-        {
-            return "Hello";
-        }
-
-        public override string Run(params string[] parameters)
-        {
-            return "Oh, HELLO, " + String.Join(" ", parameters);
-        }
-    }
-}

ShiftOS.Engine/Terminal/TerminalCommand.cs

@@ -1,19 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace ShiftOS.Engine.Terminal
-{
-    public class TerminalCommand
-    {
-        public string GetName() { return ""; }
-
-        public void Run(params string[] parameters) { return ""; }
-
-        public void Run(params string[] parameters) {
-
-        }
-    }
-}

ShiftOS.Main/ShiftOS.Main.csproj

@@ -88,6 +88,9 @@
     <Compile Include="ShiftOS\Desktop.Designer.cs">
       <DependentUpon>Desktop.cs</DependentUpon>
     </Compile>
+    <Compile Include="Terminal\Commands\Hello.cs" />
+    <Compile Include="Terminal\TerminalBackend.cs" />
+    <Compile Include="Terminal\TerminalCommand.cs" />
     <EmbeddedResource Include="HijackScreen.resx">
       <DependentUpon>HijackScreen.cs</DependentUpon>
     </EmbeddedResource>

ShiftOS.Main/ShiftOS/Apps/Terminal.Designer.cs

@@ -60,6 +60,6 @@
 
         #endregion
 
-        private System.Windows.Forms.RichTextBox termmain;
+        public System.Windows.Forms.RichTextBox termmain;
     }
 }

ShiftOS.Main/ShiftOS/Apps/Terminal.cs

@@ -8,15 +8,19 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 using ShiftOS.Engine;
-using ShiftOS.Engine.Terminal;
+using ShiftOS.Main.Terminal;
 
 namespace ShiftOS.Main.ShiftOS.Apps
 {
     public partial class Terminal : UserControl
     {
+        public int TerminalID = TerminalBackend.trmTopID++; // Used so that we can have multiple instances of the terminal whilst the command begin run knowing what terminal to send the text to - very complicated ;)
         public string defaulttextBefore = "user> ";
         public string defaulttextResult = "user@shiftos> "; // NOT YET IMPLEMENTED!!!
-        public bool doClear = false;
+        public bool DoClear = false;
+        public bool RunningCommand = false;
+        public bool WaitingResponse = false;
+        public string InputReturnText = "";
 
         // The below variables makes the terminal... a terminal!
         public string OldText = "";   
@@ -27,12 +31,8 @@ namespace ShiftOS.Main.ShiftOS.Apps
             InitializeComponent();
 
             termmain.ContextMenuStrip = new ContextMenuStrip(); // Disables the right click of a richtextbox!
-        }
 
-        public void Print(string text)
+            TerminalBackend.trm.Add(this); // Makes the commands run!
-        {
-            termmain.AppendText($"\n {text} \n {defaulttextResult}");
-            TrackingPosition = termmain.Text.Length;
         }
 
         private void termmain_KeyDown(object sender, KeyEventArgs e)
@@ -45,16 +45,22 @@ namespace ShiftOS.Main.ShiftOS.Apps
                 //    termmain.Paste(DataFormats.GetFormat(DataFormats.Text));
                 e.Handled = true;
             } else if (e.KeyCode == Keys.Enter) {
-                Print(TerminalBackend.RunCommand(termmain.Text.Substring(TrackingPosition, termmain.Text.Length - TrackingPosition))); // The most horrific line in the entire application!
+                RunningCommand = true;
+                TerminalBackend.RunCommand(termmain.Text.Substring(TrackingPosition, termmain.Text.Length - TrackingPosition), TerminalID); // The most horrific line in the entire application!
+                RunningCommand = false;
+                termmain.AppendText($"\n {defaulttextResult}");
+                TrackingPosition = termmain.Text.Length;
                 e.Handled = true;
             }
         }
 
         private void termmain_TextChanged(object sender, EventArgs e)
+        {
+            if (!RunningCommand)
             {
                 if (termmain.SelectionStart < TrackingPosition)
                 {
-                if (doClear == false) // If it's not clearing the terminal
+                    if (!DoClear) // If it's not clearing the terminal
                     {
                         termmain.Text = OldText;
                         termmain.Select(termmain.Text.Length, 0);
@@ -65,8 +71,11 @@ namespace ShiftOS.Main.ShiftOS.Apps
                     OldText = termmain.Text;
                 }
             }
+        }
 
         private void termmain_SelectionChanged(object sender, EventArgs e)
+        {
+            if (!RunningCommand)
             {
                 if (termmain.SelectionStart < TrackingPosition)
                 {
@@ -74,22 +83,29 @@ namespace ShiftOS.Main.ShiftOS.Apps
                     termmain.Select(termmain.Text.Length, 0);
                 }
             }
+        }
 
         private void Terminal_Load(object sender, EventArgs e)
         {
-            Print("\n");
+            termmain.Text = $"\n {defaulttextResult}";
+            TrackingPosition = termmain.Text.Length;
         }
 
-        public string RunCommand(string command)
+        public void Input(string request)
         {
-            string ToReturn = "";
+            InputReturnText = "";
+            RunningCommand = false;
 
-            if (command == "hi")
+            termmain.AppendText($"\n {request} ");
+            TrackingPosition = termmain.Text.Length;
+        }
+
+        public void Clear()
         {
-                ToReturn = $"{ToReturn} \n Hi!";
+            DoClear = true;
-                MessageBox.Show("HI!");
+            termmain.Text = $"\n {defaulttextResult}";
-            }
+            TrackingPosition = termmain.Text.Length;
-            return ToReturn;
+            DoClear = false;
         }
     }
 }

ShiftOS.Main/Terminal/Commands/Hello.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ShiftOS.Main.Terminal.Commands
+{
+    public class Hello : TerminalCommand
+    {
+        public override string Name { get; } = "Hello";
+        public override string Summary { get; } = "Just an example command.";
+        public override string Usage { get; } = "Hello <NAME>.";
+        public override bool Unlocked { get; set; } = false;
+
+        public override async void Run(params string[] parameters)
+        {
+            string name = string.Join(" ", parameters);
+            WriteLine($"Oh, hello, {name}.", Color.Red);
+            string age = await Input("Hey, What's your age?");
+            WriteLine($"Ok, so your name is {name} and your age {age}.");
+        }
+    }
+}

ShiftOS.Main/Terminal/TerminalBackend.cs

@@ -4,8 +4,9 @@ using System.Linq;
 using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
+using System.Windows.Forms;
 
-namespace ShiftOS.Engine.Terminal
+namespace ShiftOS.Main.Terminal
 {
     public static class TerminalBackend
     {
@@ -15,12 +16,14 @@ namespace ShiftOS.Engine.Terminal
                                  && t.GetConstructor(Type.EmptyTypes) != null
                         select Activator.CreateInstance(t) as TerminalCommand;
 
+        public static List<ShiftOS.Apps.Terminal> trm = new List<ShiftOS.Apps.Terminal>();
+        public static int trmTopID = 0;
         /// <summary>
         /// Runs a terminal command.
         /// </summary>
         /// <param name="command"></param>
-        /// <returns>Returns all the output from that command.</returns>
+        /// <param name="rtb"><summary>The rich text box that the text will be written to.</summary></param>
-        public static string RunCommand(string command)
+        public static void RunCommand(string command, int TermID)
         {
             string name;
             try { name = command.Split(' ')[0]; } catch { name = command; }
@@ -30,17 +33,17 @@ namespace ShiftOS.Engine.Terminal
 
             foreach (TerminalCommand instance in instances)
             {
-                if (instance.GetName() == name)
+                if (instance.Name.ToLower() == name.ToLower())
-                    return instance.Run(theParams);
-            }
-
-            return "The command cannot be found.";
-        }
-
-        // An extra function ;)
-        private static Type[] GetTypesInNamespace(Assembly assembly, string nameSpace)
                 {
-            return assembly.GetTypes().Where(t => String.Equals(t.Namespace, nameSpace, StringComparison.Ordinal)).ToArray();
+                    instance.TermID = TermID;
+                    // Add a new line!
+                    Array.Find(trm.ToArray(), w => w.TerminalID == TermID).termmain.AppendText("\n");
+                    instance.Run(theParams);
+                    return;
+                }
+            }
+
+            Array.Find(trm.ToArray(), w => w.TerminalID == TermID).termmain.Text += " \n The command cannot be found. \n";
         }
     }
 }

ShiftOS.Main/Terminal/TerminalCommand.cs

@@ -0,0 +1,92 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace ShiftOS.Main.Terminal
+{
+    public class TerminalCommand
+    {
+        public int TermID { get; set; }
+
+        public virtual string Name { get; }
+        public virtual string Summary { get; }
+        public virtual string Usage { get; }
+        public virtual bool Unlocked { get; set; }
+
+        public virtual void Run(params string[] parameters) { }
+
+        /// <summary>
+        /// Writes a blank line in the terminal.
+        /// </summary>
+        public virtual void WriteLine()
+        {
+            WriteLine("");
+        }
+
+        /// <summary>
+        /// Writes specified text in the terminal and starts a new line.
+        /// </summary>
+        /// <param name="value"><summary>The text to write before the new line is made.</summary></param>
+        public virtual void WriteLine(string value)
+        {
+            Array.Find(TerminalBackend.trm.ToArray(), w => w.TerminalID == TermID).termmain.AppendText($"{value} \n");
+        }
+
+        /// <summary>
+        /// Writes specified text in the terminal in the specified color and starts a new line.
+        /// </summary>
+        /// <param name="value"><summary>The text to write before the new line is made.</summary></param>
+        /// <param name="textClr"><summary>The color the text is written in.</summary></param>
+        public virtual void WriteLine(string value, Color textClr)
+        {
+            ShiftOS.Apps.Terminal trm = Array.Find(TerminalBackend.trm.ToArray(), w => w.TerminalID == TermID);
+
+            int startPoint = trm.termmain.Text.Length;
+            trm.termmain.AppendText($"{value} \n");
+            trm.termmain.Select(startPoint, $"{value} \n".Length);
+            trm.termmain.SelectionColor = textClr;
+        }
+
+        /// <summary>
+        /// Writes specified text in the terminal.
+        /// </summary>
+        /// <param name="value"><summary>The text to write.</summary></param>
+        /// <param name="textClr"><summary>The color the text is written in.</summary></param>
+        public virtual void Write(string value, Color textClr)
+        {
+
+            ShiftOS.Apps.Terminal trm = Array.Find(TerminalBackend.trm.ToArray(), w => w.TerminalID == TermID);
+
+            int startPoint = trm.termmain.Text.Length;
+            trm.termmain.AppendText($"{value}");
+            trm.termmain.Select(startPoint, $"{value}".Length);
+            trm.termmain.SelectionColor = textClr;
+        }
+
+        /// <summary>
+        /// Writes specified text in the terminal.
+        /// </summary>
+        /// <param name="value"><summary>The text to say before requesting text. </summary></param>
+        public virtual Task<string> Input(string value = "")
+        {
+            ShiftOS.Apps.Terminal trm = Array.Find(TerminalBackend.trm.ToArray(), w => w.TerminalID == TermID);
+            trm.Input(value);
+
+            Task<string> Input = new Task<string>(() =>
+            {              
+                while (true)
+                    if (trm.InputReturnText != "") break;
+
+                // The terminal has finally decided!
+
+                return trm.InputReturnText;
+            });
+            Input.Start();
+            return Input;
+        }
+    }
+}