Committed everything

Unity/Alternate Genre Jam/Assets/Ink/InkLibs/InkCompiler/ParsedHierarchy/ConstantDeclaration.cs

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+//using System.Collections.Generic;
+
+namespace Ink.Parsed
+{
+    public class ConstantDeclaration : Parsed.Object
+    {
+        public string constantName
+        {
+            get { return constantIdentifier?.name; }
+        }
+        public Identifier constantIdentifier { get; protected set; }
+        public Expression expression { get; protected set; }
+
+        public ConstantDeclaration (Identifier name, Expression assignedExpression)
+        {
+            this.constantIdentifier = name;
+
+            // Defensive programming in case parsing of assignedExpression failed
+            if( assignedExpression )
+                this.expression = AddContent(assignedExpression);
+        }
+
+        public override Runtime.Object GenerateRuntimeObject ()
+        {
+            // Global declarations don't generate actual procedural
+            // runtime objects, but instead add a global variable to the story itself.
+            // The story then initialises them all in one go at the start of the game.
+            return null;
+        }
+
+        public override void ResolveReferences (Story context)
+        {
+            base.ResolveReferences (context);
+
+            context.CheckForNamingCollisions (this, constantIdentifier, Story.SymbolType.Var);
+        }
+
+        public override string typeName {
+            get {
+                return "Constant";
+            }
+        }
+
+    }
+}
+