Cleanup state in TextTyper printing (issue #2)

This adds a TypedTextGenerator that provides a pure function to return
the print string at a desired place in a line of dialogue. This
resolves some of the issues I had with mishandled state, namely
issue #7 and issue #5.

Assets/RedBlueGames/TextTyper/RichTextTag.cs

@@ -8,6 +8,8 @@
     /// </summary>
     public class RichTextTag
     {
+        public static readonly RichTextTag ClearColorTag = new RichTextTag("<color=#00000000>");
+
         private const char OpeningNodeDelimeter = '<';
         private const char CloseNodeDelimeter = '>';
         private const char EndTagDelimeter = '/';

Assets/RedBlueGames/TextTyper/Tests/Editor/RichTextTagTests.cs

@@ -1,58 +1,60 @@
-using UnityEngine;
-using UnityEditor;
-using NUnit.Framework;
-using RedBlueGames.Tools.TextTyper;
-
-public class RichTextTagTests
+namespace RedBlueGames.Tools.TextTyper.Tests
 {
-    [Test]
-    public void Constructor_OpeningTag_Parses()
-    {
-        //Arrange
-        var tag = "<b>";
-
-        //Act
-        var richTextTag = new RichTextTag(tag);
-
-        //Assert
-        Assert.AreEqual(tag, richTextTag.TagText);
-        Assert.AreEqual("b", richTextTag.TagType);
-        Assert.IsFalse(richTextTag.IsClosingTag);
-        Assert.AreEqual("</b>", richTextTag.ClosingTagText);
-        Assert.AreEqual(string.Empty, richTextTag.Parameter);
-    }
-
-    [Test]
-    public void Constructor_TagAndParameter_Parses()
-    {
-        //Arrange
-        var tag = "<color=#FFFFFFFF>";
-
-        //Act
-        var richTextTag = new RichTextTag(tag);
-
-        //Assert
-        Assert.AreEqual(tag, richTextTag.TagText);
-        Assert.AreEqual("color", richTextTag.TagType);
-        Assert.IsFalse(richTextTag.IsClosingTag);
-        Assert.AreEqual("</color>", richTextTag.ClosingTagText);
-        Assert.AreEqual("#FFFFFFFF", richTextTag.Parameter);
-    }
+    using UnityEngine;
+    using UnityEditor;
+    using NUnit.Framework;
 
-    [Test]
-    public void Constructor_ClosingTag_Parses()
+    public class RichTextTagTests
     {
-        //Arrange
-        var tag = "</color>";
-
-        //Act
-        var richTextTag = new RichTextTag(tag);
-
-        //Assert
-        Assert.AreEqual(tag, richTextTag.TagText);
-        Assert.AreEqual("color", richTextTag.TagType);
-        Assert.IsTrue(richTextTag.IsClosingTag);
-        Assert.AreEqual("</color>", richTextTag.ClosingTagText);
-        Assert.AreEqual(string.Empty, richTextTag.Parameter);
+        [Test]
+        public void Constructor_OpeningTag_Parses()
+        {
+            //Arrange
+            var tag = "<b>";
+
+            //Act
+            var richTextTag = new RichTextTag(tag);
+
+            //Assert
+            Assert.AreEqual(tag, richTextTag.TagText);
+            Assert.AreEqual("b", richTextTag.TagType);
+            Assert.IsFalse(richTextTag.IsClosingTag);
+            Assert.AreEqual("</b>", richTextTag.ClosingTagText);
+            Assert.AreEqual(string.Empty, richTextTag.Parameter);
+        }
+
+        [Test]
+        public void Constructor_TagAndParameter_Parses()
+        {
+            //Arrange
+            var tag = "<color=#FFFFFFFF>";
+
+            //Act
+            var richTextTag = new RichTextTag(tag);
+
+            //Assert
+            Assert.AreEqual(tag, richTextTag.TagText);
+            Assert.AreEqual("color", richTextTag.TagType);
+            Assert.IsFalse(richTextTag.IsClosingTag);
+            Assert.AreEqual("</color>", richTextTag.ClosingTagText);
+            Assert.AreEqual("#FFFFFFFF", richTextTag.Parameter);
+        }
+
+        [Test]
+        public void Constructor_ClosingTag_Parses()
+        {
+            //Arrange
+            var tag = "</color>";
+
+            //Act
+            var richTextTag = new RichTextTag(tag);
+
+            //Assert
+            Assert.AreEqual(tag, richTextTag.TagText);
+            Assert.AreEqual("color", richTextTag.TagType);
+            Assert.IsTrue(richTextTag.IsClosingTag);
+            Assert.AreEqual("</color>", richTextTag.ClosingTagText);
+            Assert.AreEqual(string.Empty, richTextTag.Parameter);
+        }
     }
-}
+}