Trying to make UpdateVariable work

Advanced Software Engineering/Advanced Software Engineering/Verbs/Value/UpdateVariable.cs

@@ -1,24 +1,21 @@
-namespace Advanced_Software_Engineering.Verbs.Value {
+using System;
+
+namespace Advanced_Software_Engineering.Verbs.Value {
 
     public class UpdateVariable : IVerb {
         protected Drawer drawer;
         protected string name;
-        protected string value;
+        protected IValue value;
 
-        public UpdateVariable(Drawer drawer, string name, string value) {
+        public UpdateVariable(Drawer drawer, string name, IValue value) {
             this.name = name;
             this.value = value;
             this.drawer = drawer;
         }
 
-        public UpdateVariable(Drawer drawer, string name, IValue value) {
-
-        }
-
         public void ExecuteVerb() {
-            IValue variable = drawer.GetVariable(name);
-            string type = variable.GetOriginalType();
-            drawer.SetVariable(name, ValueFactory.CreateValue(value, type));
+            if (!drawer.CheckVariableExists(name)) throw new Exception("Cannot update variable because it is not declared");
+            drawer.SetVariable(name, value);
         }
 
         public string GetDescription() {

Advanced Software Engineering/Advanced Software Engineering/Verbs/VerbFactory.cs

@@ -41,6 +41,15 @@ namespace Advanced_Software_Engineering {
                         if (commandAndParameters["parameters"].Length == 1) {
                         return new DeclareVariable(drawer, command, commandAndParameters["parameters"][0]);
                     } else throw new Exception(command + "s need to be initialised");
+
+                    default:
+                        //assignment
+                        if (command.Contains("=") && !command.Contains("==")) {
+                            string[] assignmentCommands = command.Split("="[0]);
+                            if (assignmentCommands.Length > 2) throw new Exception("Cannot have two assignments");
+                            return new UpdateVariable(drawer, assignmentCommands[0], ValueFactory.CreateValue(drawer, assignmentCommands[1]));
+                        }
+                        break;
                 }
 
 
@@ -178,15 +187,8 @@ namespace Advanced_Software_Engineering {
                     } else throw new Exception(command + " has an incorrect number of parameters");
 
 
-
                 default:
-                    //assignment
-                    if (command.Contains("=") && !command.Contains("==")) {
-                        string[] assignmentCommands = command.Split("="[0]);
-                        if (assignmentCommands.Length > 2) throw new Exception("Cannot have two assignments");
-                        return new UpdateVariable(drawer, assignmentCommands[0], assignmentCommands[1]);
-                    }
-                    //not assignment
+                    
                     throw new Exception("Unknown command or cannot parse");
             }
         }