Committed everything

Unity/Alternate Genre Jam/Assets/Ink/InkLibs/InkRuntime/Pointer.cs

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+using Ink.Runtime;
+
+namespace Ink.Runtime
+{
+    /// <summary>
+    /// Internal structure used to point to a particular / current point in the story.
+    /// Where Path is a set of components that make content fully addressable, this is
+    /// a reference to the current container, and the index of the current piece of 
+    /// content within that container. This scheme makes it as fast and efficient as
+    /// possible to increment the pointer (move the story forwards) in a way that's as
+    /// native to the internal engine as possible.
+    /// </summary>
+	public struct Pointer
+	{
+		public Container container;
+		public int index;
+
+        public Pointer (Container container, int index)
+        {
+            this.container = container;
+            this.index = index;
+        }
+
+		public Runtime.Object Resolve ()
+		{
+            if (index < 0) return container;
+            if (container == null) return null;
+            if (container.content.Count == 0) return container;
+            if (index >= container.content.Count) return null;
+            return container.content [index];
+
+		}
+
+        public bool isNull {
+            get {
+                return container == null;
+            }
+        }
+
+        public Path path {
+            get {
+                if( isNull ) return null;
+
+                if (index >= 0)
+                    return container.path.PathByAppendingComponent (new Path.Component(index));
+                else
+                    return container.path;
+            }
+        }
+
+        public override string ToString ()
+        {
+            if (container == null)
+                return "Ink Pointer (null)";
+
+            return "Ink Pointer -> " + container.path.ToString () + " -- index " + index;
+        }
+
+        public static Pointer StartOf (Container container)
+        {
+            return new Pointer {
+                container = container,
+                index = 0
+            };
+        }
+
+        public static Pointer Null = new Pointer { container = null, index = -1 };
+
+	}
+}