Variables can now be assigned.

Next i need to make it so the variables can be accessed and used by other functions

Advanced Software Engineering/Advanced Software Engineering/Commander.cs

@@ -122,7 +122,15 @@ namespace Advanced_Software_Engineering {
             ProcessCommands(rawCommands, pardonCommands);
 
             for (; start < commands.Count; start++) {
+                try {
                     commands[start].ExecuteVerb();
+                } catch (Exception e) {
+                    IVerb tmp = commands[start];
+                    if (!pardonCommands) RemoveAllCommands();
+                    else commands.Remove(commands[start]);
+                    new ErrorWindow("Runtime Error", "Failed to " + tmp.GetDescription(), "While trying to '" + tmp.GetDescription() + "' an exception occured.\nMessage:\n" + e.Message + "\nStack Trace:\n" + e.StackTrace, ErrorWindow.ERROR_MESSAGE).Show();
+                    break;
+                }
             }
         }
 

Advanced Software Engineering/Advanced Software Engineering/Drawer.cs

@@ -67,6 +67,7 @@ namespace Advanced_Software_Engineering {
             pen = new Pen(defaultColor, defaultWidth);
             brush = new SolidBrush(defaultColor);
             fill = false;
+            variables.Clear();
         }
 
         /// <summary>

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

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 
 namespace Advanced_Software_Engineering.Verbs.Value {
 
@@ -7,17 +8,34 @@ namespace Advanced_Software_Engineering.Verbs.Value {
         private IValue value;
         private string name;
 
-        public DeclareVariable(Drawer drawer, string type, string assgnment) {
+        public DeclareVariable(Drawer drawer, string type, string assignment) {
             this.drawer = drawer;
 
-            value = ValueFactory.CreateValue(type, assgnment);
+            // get variable name
-        }
+            // assignment looks something like this at this point: 
+            // i = 20
+            // or
+            // i = 2 == 5
 
-        void IVerb.ExecuteVerb() {
+            // bools have ==
-        }
+            if(!(type == "bool")) {
+                //Seperate the assignment from the variables
+                List<string> assignmentList = SettingsAndHelperFunctions.StripStringArray(assignment.Split("="[0]));
+                name = assignmentList[0];
+                value = ValueFactory.CreateValue(assignmentList[1], type);
                 
-        string IVerb.GetDescription() {
+            } else {
                 throw new NotImplementedException();
             }
+
+        }
+
+        public void ExecuteVerb() {
+            drawer.SetVariable(name, value);
+        }
+
+        public string GetDescription() {
+            return "Declares the variable " + name;
+        }
     }
 }

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

@@ -25,7 +25,7 @@ namespace Advanced_Software_Engineering.Verbs.Value {
 
             //Check for bad input
             if (operation > 3 && operation < 0) throw new Exception("Bad operation");
-            if(variable1.)
+            
         }
 
         private IValue Evaluate() {
@@ -103,18 +103,22 @@ namespace Advanced_Software_Engineering.Verbs.Value {
         }
 
         public bool ToBool() {
+            if (!evaluated) Evaluate(); 
             return evaluatedValue.ToBool();
         }
 
         public Color ToColor() {
+            if (!evaluated) Evaluate();
             return evaluatedValue.ToColor();
         }
 
         public double ToDouble() {
+            if (!evaluated) Evaluate();
             return evaluatedValue.ToDouble();
         }
 
         public int ToInt() {
+            if (!evaluated) Evaluate();
             return evaluatedValue.ToInt();
         }
     }

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

@@ -25,9 +25,6 @@ namespace Advanced_Software_Engineering.Verbs.Value {
                 case "bool":
                     return new BoolValue(ValueHelper.ConvertToBool(value));
 
-                case "expression":
-                    return new Exception(ValueHelper.ConvertToExpression(value));
-
                 default:
                     throw new Exception("Unknown expected type: " + type.ToString());
             }

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

@@ -147,5 +147,9 @@ namespace Advanced_Software_Engineering.Verbs.Value {
             }
             throw new Exception("Could not convert " + text + " to any type");
         }
+
+        public static Exception ConvertToExpression(string expression) {
+            throw new NotImplementedException();
+        }
     }
 }