Added the start of self checking.

RsMapper/Form1.cs

@@ -47,7 +47,7 @@ public Form1()
         // Read components json and retrieve redstone components.
         public void GetComps()
         {
-            using (StreamReader r = new StreamReader("Components.json"))
+            using (StreamReader r = new StreamReader(PrgmSelfCheck.ComponentsJson))
             {
                 string json = r.ReadToEnd();
                 Console.Write(json);

RsMapper/PrgmSelfCheck.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.IO;
+using System.Net;
+using System.Windows.Forms;
+
+namespace RsMapper
+{
+    public class PrgmSelfCheck
+    {
+        // DEPENDANCIES
+        public static string ComponentsJson = "Components.json";
+        public static string JsonNet =        "Newtonsoft.Json.dll";
+        public static string JsonNetXml =     "Newtonsoft.Json.xml";
+
+        WebClient wc = new WebClient();
+
+        /// <summary>
+        /// Check for any missing files that are required to start the program.
+        /// </summary>
+        public void CheckAll()
+        {
+            if(File.Exists(ComponentsJson) == false)
+            {
+
+                // Check for components settings file.
+                if(MessageBox.Show("The file " + ComponentsJson + " is missing. Would you like to redownload it?", "Missing Dependancy", MessageBoxButtons.YesNo, MessageBoxIcon.Error) == DialogResult.Yes)
+                {
+
+                    // Reinstall the file if the user clicks yes.
+                    wc.DownloadFile("https://raw.githubusercontent.com/GreenJamesDev/RsMapper/master/RsMapper/Components.json", AppDomain.CurrentDomain.BaseDirectory + "Components.json");
+
+
+                } else
+                {
+
+                    // If the user chooses not to reinstall the file, exit RsMapper.
+                    Application.Exit();
+                }
+
+            }
+
+
+
+        }
+
+
+    }
+}

RsMapper/Program.cs

@@ -14,8 +14,13 @@ static class Program
         [STAThread]
         static void Main()
         {
+
             Application.EnableVisualStyles();
             Application.SetCompatibleTextRenderingDefault(false);
+
+            PrgmSelfCheck sc = new PrgmSelfCheck();
+            sc.CheckAll();
+
             Application.Run(new Form1());
         }
     }

RsMapper/RsMapper.csproj

@@ -77,6 +77,7 @@
       <DesignTime>True</DesignTime>
       <DependentUpon>imgs.resx</DependentUpon>
     </Compile>
+    <Compile Include="PrgmSelfCheck.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="RsComponent.cs" />