AddCommand button and help text

Assets/Fungus/Editor/FungusScript/FungusCommandEditor.cs

@@ -38,7 +38,7 @@ namespace Fungus.Script
 			}
 
 			GUIStyle labelStyle = EditorStyles.miniLabel;
-			GUILayout.Label(t.GetDescription().Replace("\n", "").Replace("\r", ""), labelStyle);
+			GUILayout.Label(t.GetSummary().Replace("\n", "").Replace("\r", ""), labelStyle);
 
 			GUILayout.FlexibleSpace();
 

Assets/Fungus/Editor/FungusScript/FungusScriptEditor.cs

@@ -135,10 +135,12 @@ namespace Fungus.Script
 			{
 				DrawSequenceGUI(t.selectedSequence);
 
+				if (!Application.isPlaying)
+				{
 					EditorGUILayout.Separator();
-
 					DrawAddCommandGUI(t.selectedSequence);
 				}
+			}
 
 			serializedObject.ApplyModifiedProperties();
 		}
@@ -171,11 +173,63 @@ namespace Fungus.Script
 
 		public void DrawAddCommandGUI(Sequence sequence)
 		{
-			// FungusScript t = target as FungusScript;
+			FungusScript t = target as FungusScript;
 
 			GUI.backgroundColor = Color.yellow;
 			GUILayout.Box("Add Command", GUILayout.ExpandWidth(true));
 			GUI.backgroundColor = Color.white;
+
+			// Build list of categories
+			List<System.Type> commandTypes = EditorExtensions.FindDerivedTypes(typeof(FungusCommand)).ToList();
+			if (commandTypes.Count == 0)
+			{
+				return;
+			}
+
+			List<string> commandNames = new List<string>();
+			foreach(System.Type type in commandTypes)
+			{
+				commandNames.Add(type.Name);
+			}
+
+			EditorGUI.BeginChangeCheck();
+
+			int selectedCommandIndex = EditorGUILayout.Popup("Command", t.selectedCommandIndex, commandNames.ToArray());
+
+			if (EditorGUI.EndChangeCheck())
+			{
+				Undo.RecordObject(t, "Select Command");
+				t.selectedCommandIndex = selectedCommandIndex;
+			}
+
+			System.Type selectedType = commandTypes[selectedCommandIndex];
+			if (selectedType == null)
+			{
+				return;
+			}
+
+			GUILayout.BeginHorizontal();
+			GUILayout.FlexibleSpace();
+			if (GUILayout.Button(new GUIContent("Add Command", "Add the selected command to the sequence")))
+			{
+				Undo.AddComponent(sequence.gameObject, selectedType);
+			}
+			GUILayout.EndHorizontal();
+
+			EditorGUILayout.Separator();
+							
+			object[] attributes = selectedType.GetCustomAttributes(typeof(HelpTextAttribute), false);
+			foreach (object obj in attributes)
+			{
+				HelpTextAttribute helpTextAttr = obj as HelpTextAttribute;
+				if (helpTextAttr != null)
+				{
+					GUIStyle labelStyle = new GUIStyle(EditorStyles.miniLabel);
+					labelStyle.wordWrap = true;
+					GUILayout.Label(helpTextAttr.HelpText, labelStyle);
+					break;
+				}
+			}
 		}
 
 		public void DrawVariablesGUI()

Assets/Fungus/VisualScripting/Call.cs

@@ -20,6 +20,7 @@ namespace Fungus.Script
 		GreaterThanOrEquals		// >=
 	}
 
+	[HelpText("Start running another sequence. Can use a variable comparision to decide which sequence to run.")]
 	public class Call : FungusCommand
 	{
 		public CallCondition callCondition;
@@ -185,7 +186,7 @@ namespace Fungus.Script
 			}
 		}
 		
-		public override string GetDescription()
+		public override string GetSummary()
 		{
 			if (callCondition == CallCondition.CallAlways)
 			{

Assets/Fungus/VisualScripting/FungusCommand.cs

@@ -2,11 +2,22 @@
 using UnityEditor;
 #endif
 using UnityEngine;
+using System;
 using System.Collections;
 using System.Collections.Generic;
 
 namespace Fungus.Script
 {
+	public class HelpTextAttribute : Attribute
+	{
+		public HelpTextAttribute(string helpText)
+		{
+			this.HelpText = helpText;
+		}
+		
+		public string HelpText { get; set; }
+	}
+
 	[RequireComponent(typeof(Sequence))]
 	public class FungusCommand : MonoBehaviour 
 	{
@@ -88,7 +99,12 @@ namespace Fungus.Script
 		public virtual void GetConnectedSequences(ref List<Sequence> connectedSequences)
 		{}
 		
-		public virtual string GetDescription()
+		public virtual string GetSummary()
+		{
+			return "";
+		}
+
+		public virtual string GetHelpText()
 		{
 			return "";
 		}

Assets/Fungus/VisualScripting/FungusScript.cs

@@ -11,19 +11,22 @@ namespace Fungus.Script
 
 	public class FungusScript : MonoBehaviour 
 	{
-		public float stepTime;
-
-		public Sequence startSequence;
-
 		[System.NonSerialized]
 		public Sequence executingSequence;
 
 		[System.NonSerialized]
 		public FungusCommand copyCommand;
 
+		[HideInInspector]
+		public int selectedCommandIndex;
+
 		[HideInInspector]
 		public Vector2 scrollPos;
 
+		public float stepTime;
+		
+		public Sequence startSequence;
+
 		public Sequence selectedSequence;
 
 		public bool startAutomatically = false;

Assets/Fungus/VisualScripting/Option.cs

@@ -4,7 +4,7 @@ using System.Collections.Generic;
 
 namespace Fungus.Script
 {
-
+	[HelpText("Adds an option button to be displayed by the next Say command. The target sequence is run when the player selects the option. A condition can be specified for when the option should be shown.")]
 	public class Option : FungusCommand
 	{
 		public enum ShowCondition
@@ -76,7 +76,7 @@ namespace Fungus.Script
 			}
 		}
 
-		public override string GetDescription()
+		public override string GetSummary()
 		{
 			string description = "\"" + optionText + "\"";
 			if (targetSequence != null)

Assets/Fungus/VisualScripting/Say.cs

@@ -5,6 +5,7 @@ using System.Collections.Generic;
 
 namespace Fungus.Script
 {
+	[HelpText("Writes a line of story text to the dialog. A condition can be specified for when the story text should be shown.")]
 	public class Say : FungusCommand 
 	{
 		public enum ShowCondition
@@ -83,7 +84,7 @@ namespace Fungus.Script
 			});
 		}
 
-		public override string GetDescription()
+		public override string GetSummary()
 		{
 			return "\"" + text + "\"";
 		}

Assets/Fungus/VisualScripting/Set.cs

@@ -3,7 +3,7 @@ using System.Collections;
 
 namespace Fungus.Script
 {
-
+	[HelpText("Sets a variable to a new value using simple arithmetic operations. The value can be a constant or another variable.")]
 	public class Set : FungusCommand 
 	{
 		public enum SetOperator
@@ -119,7 +119,7 @@ namespace Fungus.Script
 			Continue();
 		}
 
-		public override string GetDescription()
+		public override string GetSummary()
 		{
 			if (variable == null)
 			{

Assets/Fungus/VisualScripting/View.cs

@@ -4,7 +4,7 @@ using System.Collections;
 
 namespace Fungus.Script
 {
-
+	[HelpText("Moves the camera to a location specified by a View object. Supports Move and Fade transitions over a period of time.")]
 	public class View : FungusCommand 
 	{
 		public enum Transition
@@ -58,7 +58,7 @@ namespace Fungus.Script
 			}
 		}
 
-		public override string GetDescription()
+		public override string GetSummary()
 		{
 			string description = "";
 

Assets/Fungus/VisualScripting/Wait.cs

@@ -4,7 +4,7 @@ using System.Collections;
 
 namespace Fungus.Script
 {
-
+	[HelpText("Waits for period of time before executing the next command in the sequence.")]
 	public class Wait : FungusCommand 
 	{
 		public float duration;