Initial visual scripting prototype code

Assets/Fungus/Editor/FungusCommandEditor.cs

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+using UnityEditor;
+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+using Fungus;
+
+[CustomEditor (typeof(FungusCommand), true)]
+public class FungusCommandEditor : Editor 
+{
+
+	public override void OnInspectorGUI() 
+	{
+		Rect rect = EditorGUILayout.BeginVertical();
+
+		DrawDefaultInspector();
+
+		FungusCommand t = target as FungusCommand;
+		if (t != null)
+		{
+			if (t.errorMessage.Length > 0)
+			{
+				GUIStyle style = new GUIStyle(GUI.skin.label);
+				style.normal.textColor = new Color(1,0,0);
+				EditorGUILayout.LabelField(new GUIContent("Error: " + t.errorMessage), style);
+			}
+
+			if (t.IsExecuting())
+			{
+				EditorGUI.DrawRect(rect, new Color(1f, 1f, 0f, 0.25f));
+			}
+		}
+
+		EditorGUILayout.EndVertical();
+	}
+
+}

Assets/Fungus/Editor/FungusCommandEditor.cs.meta

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Assets/Fungus/Editor/FungusEditorWindow.cs

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+using UnityEngine;
+using UnityEditor;
+using System.Collections;
+using System.Collections.Generic;
+using Fungus;
+
+public class FungusEditorWindow : EditorWindow
+{
+	private List<Sequence> windowSequenceMap = new List<Sequence>();
+    private Vector2 scrollPos;                         // ScrollViews use a Vector2 to track the state of each scroll bar
+
+	private GameObject cachedSelection;
+
+    [MenuItem("Window/Fungus Editor")]
+    static void Init()
+    {
+        GetWindow(typeof(FungusEditorWindow), false, "Fungus Editor");
+    }
+
+	public void OnInspectorUpdate()
+	{
+		Repaint();
+	}
+
+	SequenceController GetSequenceController()
+	{
+		GameObject activeObject = Selection.activeGameObject;
+
+		while (activeObject != null)
+		{
+			SequenceController sequenceController = activeObject.GetComponent<SequenceController>();
+			Sequence sequence = activeObject.GetComponent<Sequence>();
+
+			if (sequenceController != null)
+			{
+				// Found sequence controller
+				return sequenceController;
+			}
+			else if (sequence != null &&
+			         sequence.transform.parent != null)
+			{
+				// Check parent for sequence controller
+				activeObject = sequence.transform.parent.gameObject;
+			}
+			else
+			{
+				activeObject = null;
+			}
+		}
+
+		return null;
+	}
+
+    void OnGUI()
+    {
+		SequenceController sequenceController = GetSequenceController();
+		if (sequenceController == null)
+		{
+			return;
+		}
+
+        // BeginScrollView lets you specify a region that 'looks into' a much larger area. In this case, we create a canvas
+        // 1000px X 1000px in size that's constrained to the same region as the EditorWindow. If the scrollbars are modified,
+        // the new values are stored in the Vector2 that's returned.
+        // http://docs.unity3d.com/Documentation/ScriptReference/GUI.BeginScrollView.html
+        scrollPos = GUI.BeginScrollView(new Rect(0, 0, position.width, position.height), scrollPos, new Rect(0, 0, 1000, 1000));
+
+        // In games, GUI.Window pops up a window on your screen. In the Editor, GUI.Window shows a sub-window inside an EditorWindow.
+        // All calls to GUI.Window need to be wrapped in a BeginWindows / EndWindows pair.
+        // http://docs.unity3d.com/Documentation/ScriptReference/EditorWindow.BeginWindows.html
+        BeginWindows();
+
+		Sequence[] sequences = sequenceController.GetComponentsInChildren<Sequence>();
+
+		windowSequenceMap.Clear();
+		for (int i = 0; i < sequences.Length; ++i)
+		{
+			Sequence sequence = sequences[i];
+			sequence.nodeRect = GUI.Window(i, sequence.nodeRect, DrawWindow, sequence.name);
+			windowSequenceMap.Add(sequence);
+		}
+
+		// Draw connections
+		foreach (Sequence s in windowSequenceMap)
+		{
+			DrawConnections(s, false);
+		}
+		foreach (Sequence s in windowSequenceMap)
+		{
+			DrawConnections(s, true);
+		}
+
+        EndWindows();
+
+        GUI.EndScrollView();
+    }
+
+    void DrawWindow(int windowId)
+    {
+		// Select game object when node is clicked
+		if (Event.current.button == 0 && 
+	    	Event.current.type == EventType.MouseUp) 
+		{
+			if (windowId < windowSequenceMap.Count)
+			{
+				Sequence s = windowSequenceMap[windowId];
+				if (s != null)
+				{
+					Selection.activeGameObject = s.gameObject;
+				}
+			}
+		}
+
+		Sequence sequence = windowSequenceMap[windowId];
+
+		GUIStyle style = new GUIStyle(GUI.skin.box);
+
+		FungusCommand[] commands = sequence.gameObject.GetComponents<FungusCommand>();
+		foreach (FungusCommand command in commands)
+		{
+			string commandName = command.GetType().Name;
+			commandName = commandName.Replace("Command", "");
+
+			if (command.errorMessage.Length > 0)
+			{
+				GUI.backgroundColor = Color.red;
+			}
+			else if (command.IsExecuting())
+			{
+				GUI.backgroundColor = Color.yellow;
+			}
+			else
+			{
+				GUI.backgroundColor = Color.white;
+			}
+
+			GUILayout.Label(commandName, style, GUILayout.ExpandWidth(true));
+		}
+
+        GUI.DragWindow();
+    }
+
+	void DrawConnections(Sequence sequence, bool highlightedOnly)
+	{
+		List<Sequence> connectedSequences = new List<Sequence>();
+
+		FungusCommand[] commands = sequence.GetComponentsInChildren<FungusCommand>();
+		foreach (FungusCommand command in commands)
+		{
+			bool isExecuting = command.IsExecuting();
+
+			if (highlightedOnly && !isExecuting ||
+			    !highlightedOnly && isExecuting)
+			{
+				continue;
+			}
+
+			connectedSequences.Clear();
+			command.GetConnectedSequences(ref connectedSequences);
+
+			foreach (Sequence sequenceB in connectedSequences)
+			{
+				Rect rectA = sequence.nodeRect;
+				Rect rectB = sequenceB.nodeRect;
+
+				Vector2 pointA;
+				Vector2 pointB;
+
+				Vector2 p1 = rectA.center;
+				Vector2 p2 = rectB.center;
+				GLDraw.segment_rect_intersection(rectA, ref p1, ref p2);
+				pointA = p2;
+
+				p1 = rectB.center;
+				p2 = rectA.center;
+				GLDraw.segment_rect_intersection(rectB, ref p1, ref p2);
+				pointB = p2;
+
+				Color color = Color.grey;
+				if (command.IsExecuting())
+				{
+					color = Color.yellow;
+				}
+
+				GLDraw.DrawConnectingCurve(pointA, pointB, color, 2);
+			}
+		}
+	}
+}

Assets/Fungus/Editor/FungusEditorWindow.cs.meta

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Assets/Fungus/Editor/SayCommandEditor.cs

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+using UnityEditor;
+using UnityEditorInternal;
+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+using Fungus;
+
+/*
+[CustomEditor (typeof(SayCommand))]
+public class SayCommandEditor : Editor
+{
+	public override void OnInspectorGUI() 
+	{
+	}
+}
+*/

Assets/Fungus/Editor/SayCommandEditor.cs.meta

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Assets/Fungus/Editor/SequenceEditor.cs

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+using UnityEditor;
+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+using Fungus;
+
+[CustomEditor (typeof(Sequence))]
+public class SequenceEditor : Editor 
+{
+}

Assets/Fungus/Editor/SequenceEditor.cs.meta

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Assets/Fungus/Editor/Utilities/EditorExtensions.cs

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+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+
+public static class EditorExtensions
+{
+    /// <summary>
+    /// FindDerivedTypesFromAssembly allows a user to query all of types derived from a
+    /// particular Type at runtime.
+    /// Example usage:
+    ///     foreach (System.Type st in EditorUtility.FindDerivedTypesFromAssembly(System.Reflection.Assembly.GetAssembly(typeof(BaseTimelineEvent)), typeof(BaseTimelineEvent), true))
+    /// </summary>
+    /// <param name="assembly">The assembly to search in</param>
+    /// <param name="baseType">The base Type from which all returned Types derive</param>
+    /// <param name="classOnly">If true, only class Types will be returned</param>
+    /// <returns></returns>
+    public static System.Type[] FindDerivedTypesFromAssembly(this System.Reflection.Assembly assembly, System.Type baseType, bool classOnly = true)
+    {
+        if (assembly == null)
+            Debug.LogError("Assembly must be defined");
+        if (baseType == null)
+            Debug.LogError("Base type must be defined");
+
+        // Iterate through all available types in the assembly
+        var types = assembly.GetTypes().Where(type =>
+            {
+                if (classOnly && !type.IsClass)
+                    return false;
+                
+                if (baseType.IsInterface)
+                {
+                    var it = type.GetInterface(baseType.FullName);
+
+                    if (it != null)
+                        return true;
+                }
+                else if (type.IsSubclassOf(baseType))
+                {
+                    return true;
+                }
+
+                return false;
+            }
+        );
+
+        return types.ToArray();
+    }
+
+    /// <summary>
+    /// A convenient method for calling the above.
+    /// Example usage:
+    ///     List<System.Type> subTypes = EditorUtility.FindDerivedTypes(typeof(BaseTimelineEvent)).ToList();
+    /// </summary>
+    /// <param name="baseType"></param>
+    /// <param name="classOnly"></param>
+    /// <returns></returns>
+    public static System.Type[] FindDerivedTypes(System.Type baseType, bool classOnly = true)
+    {
+        return FindDerivedTypesFromAssembly(System.Reflection.Assembly.GetAssembly(baseType), baseType, classOnly);
+    }
+}

Assets/Fungus/Editor/Utilities/EditorExtensions.cs.meta

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Assets/Fungus/Editor/Utilities/GLDraw.cs

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+using UnityEngine;
+using System.Collections;
+using System;
+
+public class GLDraw
+{
+    /*
+     * Clipping code: http://forum.unity3d.com/threads/17066-How-to-draw-a-GUI-2D-quot-line-quot?p=230386#post230386
+     * Thick line drawing code: http://unifycommunity.com/wiki/index.php?title=VectorLine
+     */
+    protected static bool clippingEnabled;
+    protected static Rect clippingBounds;
+    public static Material lineMaterial = null;
+
+    /* @ Credit: "http://cs-people.bu.edu/jalon/cs480/Oct11Lab/clip.c" */
+    protected static bool clip_test(float p, float q, ref float u1, ref float u2)
+    {
+        float r;
+        bool retval = true;
+
+        if (p < 0.0)
+        {
+            r = q / p;
+            if (r > u2)
+                retval = false;
+            else if (r > u1)
+                u1 = r;
+        }
+        else if (p > 0.0)
+        {
+            r = q / p;
+            if (r < u1)
+                retval = false;
+            else if (r < u2)
+                u2 = r;
+        }
+        else if (q < 0.0)
+            retval = false;
+
+        return retval;
+    }
+
+    public static bool segment_rect_intersection(Rect bounds, ref Vector2 p1, ref Vector2 p2)
+    {
+        float u1 = 0.0f, u2 = 1.0f, dx = p2.x - p1.x, dy;
+
+        if (clip_test(-dx, p1.x - bounds.xMin, ref u1, ref u2))
+        {
+            if (clip_test(dx, bounds.xMax - p1.x, ref u1, ref u2))
+            {
+                dy = p2.y - p1.y;
+                if (clip_test(-dy, p1.y - bounds.yMin, ref u1, ref u2))
+                {
+                    if (clip_test(dy, bounds.yMax - p1.y, ref u1, ref u2))
+                    {
+                        if (u2 < 1.0)
+                        {
+                            p2.x = p1.x + u2 * dx;
+                            p2.y = p1.y + u2 * dy;
+                        }
+
+                        if (u1 > 0.0)
+                        {
+                            p1.x += u1 * dx;
+                            p1.y += u1 * dy;
+                        }
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    public static void BeginGroup(Rect position)
+    {
+        clippingEnabled = true;
+        clippingBounds = new Rect(0, 0, position.width, position.height);
+        GUI.BeginGroup(position);
+    }
+
+    public static void EndGroup()
+    {
+        GUI.EndGroup();
+        clippingBounds = new Rect(0, 0, Screen.width, Screen.height);
+        clippingEnabled = false;
+    }
+
+    public static void CreateMaterial()
+    {
+        if (lineMaterial != null)
+            return;
+
+        lineMaterial = new Material("Shader \"Lines/Colored Blended\" {" +
+                                    "SubShader { Pass { " +
+                                    "    Blend SrcAlpha OneMinusSrcAlpha " +
+                                    "    ZWrite Off Cull Off Fog { Mode Off } " +
+                                    "    BindChannels {" +
+                                    "      Bind \"vertex\", vertex Bind \"color\", color }" +
+                                    "} } }");
+        lineMaterial.hideFlags = HideFlags.HideAndDontSave;
+        lineMaterial.shader.hideFlags = HideFlags.HideAndDontSave;
+    }
+
+    public static void DrawLine(Vector2 start, Vector2 end, Color color, float width)
+    {
+        if (Event.current == null)
+            return;
+        if (Event.current.type != EventType.repaint)
+            return;
+
+        if (clippingEnabled)
+            if (!segment_rect_intersection(clippingBounds, ref start, ref end))
+                return;
+
+        CreateMaterial();
+
+        lineMaterial.SetPass(0);
+
+        Vector3 startPt;
+        Vector3 endPt;
+
+        if (width == 1)
+        {
+            GL.Begin(GL.LINES);
+			GL.Color(color);
+            startPt = new Vector3(start.x, start.y, 0);
+            endPt = new Vector3(end.x, end.y, 0);
+            GL.Vertex(startPt);
+            GL.Vertex(endPt);
+        }
+        else
+        {
+            GL.Begin(GL.QUADS);
+			GL.Color(color);
+            startPt = new Vector3(end.y, start.x, 0);
+            endPt = new Vector3(start.y, end.x, 0);
+            Vector3 perpendicular = (startPt - endPt).normalized * width;
+            Vector3 v1 = new Vector3(start.x, start.y, 0);
+            Vector3 v2 = new Vector3(end.x, end.y, 0);
+            GL.Vertex(v1 - perpendicular);
+            GL.Vertex(v1 + perpendicular);
+            GL.Vertex(v2 + perpendicular);
+            GL.Vertex(v2 - perpendicular);
+        }
+        GL.End();
+    }
+
+    public static void DrawBox(Rect box, Color color, float width)
+    {
+        Vector2 p1 = new Vector2(box.xMin, box.yMin);
+        Vector2 p2 = new Vector2(box.xMax, box.yMin);
+        Vector2 p3 = new Vector2(box.xMax, box.yMax);
+        Vector2 p4 = new Vector2(box.xMin, box.yMax);
+        DrawLine(p1, p2, color, width);
+        DrawLine(p2, p3, color, width);
+        DrawLine(p3, p4, color, width);
+        DrawLine(p4, p1, color, width);
+    }
+
+    public static void DrawBox(Vector2 topLeftCorner, Vector2 bottomRightCorner, Color color, float width)
+    {
+        Rect box = new Rect(topLeftCorner.x, topLeftCorner.y, bottomRightCorner.x - topLeftCorner.x, bottomRightCorner.y - topLeftCorner.y);
+        DrawBox(box, color, width);
+    }
+
+    public static void DrawRoundedBox(Rect box, float radius, Color color, float width)
+    {
+        Vector2 p1, p2, p3, p4, p5, p6, p7, p8;
+        p1 = new Vector2(box.xMin + radius, box.yMin);
+        p2 = new Vector2(box.xMax - radius, box.yMin);
+        p3 = new Vector2(box.xMax, box.yMin + radius);
+        p4 = new Vector2(box.xMax, box.yMax - radius);
+        p5 = new Vector2(box.xMax - radius, box.yMax);
+        p6 = new Vector2(box.xMin + radius, box.yMax);
+        p7 = new Vector2(box.xMin, box.yMax - radius);
+        p8 = new Vector2(box.xMin, box.yMin + radius);
+
+        DrawLine(p1, p2, color, width);
+        DrawLine(p3, p4, color, width);
+        DrawLine(p5, p6, color, width);
+        DrawLine(p7, p8, color, width);
+
+        Vector2 t1, t2;
+        float halfRadius = radius / 2;
+
+        t1 = new Vector2(p8.x, p8.y + halfRadius);
+        t2 = new Vector2(p1.x - halfRadius, p1.y);
+        DrawBezier(p8, t1, p1, t2, color, width);
+
+        t1 = new Vector2(p2.x + halfRadius, p2.y);
+        t2 = new Vector2(p3.x, p3.y - halfRadius);
+        DrawBezier(p2, t1, p3, t2, color, width);
+
+        t1 = new Vector2(p4.x, p4.y + halfRadius);
+        t2 = new Vector2(p5.x + halfRadius, p5.y);
+        DrawBezier(p4, t1, p5, t2, color, width);
+
+        t1 = new Vector2(p6.x - halfRadius, p6.y);
+        t2 = new Vector2(p7.x, p7.y + halfRadius);
+        DrawBezier(p6, t1, p7, t2, color, width);
+    }
+
+    public static void DrawConnectingCurve(Vector2 start, Vector2 end, Color color, float width)
+    {
+        Vector2 distance = start - end;
+
+        Vector2 tangentA = start;
+        tangentA.x -= distance.x * 0.5f;
+        Vector2 tangentB = end;
+        tangentB.x += distance.x * 0.5f;
+
+        int segments = Mathf.FloorToInt((distance.magnitude / 20) * 3);
+
+        DrawBezier(start, tangentA, end, tangentB, color, width, segments);
+
+		Vector2 pA = CubeBezier(start, tangentA, end, tangentB, 0.7f);
+		Vector2 pB = CubeBezier(start, tangentA, end, tangentB, 0.8f);
+
+		float arrowHeadSize = 10;
+		
+		Vector2 arrowPosA = pB;
+		Vector2 arrowPosB = arrowPosA;
+		Vector2 arrowPosC = arrowPosA;
+		
+		Vector2 dir = (pB - pA).normalized;
+
+		arrowPosB.x += dir.y * arrowHeadSize;
+		arrowPosB.y -= dir.x * arrowHeadSize;
+		arrowPosB -= dir * arrowHeadSize;
+
+		arrowPosC.x -= dir.y * arrowHeadSize;
+		arrowPosC.y += dir.x * arrowHeadSize;
+		arrowPosC -= dir * arrowHeadSize;
+
+		DrawLine(arrowPosA, arrowPosB, color, 1);
+		DrawLine(arrowPosA, arrowPosC, color, 1);
+		DrawLine(arrowPosB, arrowPosC, color, 1);
+	}
+
+    public static void DrawBezier(Vector2 start, Vector2 startTangent, Vector2 end, Vector2 endTangent, Color color, float width)
+    {
+        int segments = Mathf.FloorToInt((start - end).magnitude / 20) * 3; // Three segments per distance of 20
+        DrawBezier(start, startTangent, end, endTangent, color, width, segments);
+    }
+
+    public static void DrawBezier(Vector2 start, Vector2 startTangent, Vector2 end, Vector2 endTangent, Color color, float width, int segments)
+    {
+        Vector2 startVector = CubeBezier(start, startTangent, end, endTangent, 0);
+        for (int i = 1; i <= segments; i++)
+        {
+            Vector2 endVector = CubeBezier(start, startTangent, end, endTangent, i / (float)segments);
+            DrawLine(startVector, endVector, color, width);
+            startVector = endVector;
+        }
+    }
+
+    private static Vector2 CubeBezier(Vector2 s, Vector2 st, Vector2 e, Vector2 et, float t)
+    {
+        float rt = 1 - t;
+        float rtt = rt * t;
+        return rt * rt * rt * s + 3 * rt * rtt * st + 3 * rtt * t * et + t * t * t * e;
+    }
+}

Assets/Fungus/Editor/Utilities/GLDraw.cs.meta

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Assets/Fungus/Tests/Sequence/SequenceTestRoom.cs

@@ -0,0 +1,37 @@
+using UnityEngine;
+using System.Collections;
+using Fungus;
+
+public class SequenceTestRoom : Room 
+{
+	public SequenceController sequenceController;
+
+	void OnEnter() 
+	{
+		sequenceController.ExecuteSequence(sequenceController.activeSequence);
+
+		/*
+		Sequence s = GetComponent<Sequence>();
+
+		s.Add(new Say("New sequencer 1"));
+		s.Add(new AddOption("Button 1", Clicked));
+		//s.Add(new AddOption("Button 2", Clicked));
+		//s.Add(new AddOption("Button 3", Clicked));
+		s.Add(new Say("New sequencer 2"));
+		s.Add(new Say("New sequencer 3"));
+
+		s.Execute();
+		*/
+	}
+
+	void Clicked()
+	{
+		/*
+		Sequence s = GetComponent<Sequence>();
+
+		s.Clear();
+		s.Add(new Say("You have clicked"));
+		s.Execute();
+		*/
+	}
+}

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Assets/Fungus/VisualScripting/ExecuteCommand.cs

@@ -0,0 +1,44 @@
+using UnityEngine;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace Fungus
+{
+
+	public class ExecuteCommand : FungusCommand 
+	{
+		public Sequence targetSequence;
+
+		public override void OnExecute()
+		{
+			if (targetSequence == null)
+			{
+				return;
+			}
+
+			ExecuteSequence(targetSequence);
+		}
+
+		public void OnDrawGizmos()
+		{
+			if (targetSequence == null)
+			{
+				errorMessage = "Please select a Target Sequence object";
+			}
+			else
+			{
+				errorMessage = "";
+			}
+		}
+
+		public override void GetConnectedSequences(ref List<Sequence> connectedSequences)
+		{
+			if (targetSequence != null)
+			{
+				connectedSequences.Add(targetSequence);
+			}
+		}
+	}
+	
+}

Assets/Fungus/VisualScripting/ExecuteCommand.cs.meta

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Assets/Fungus/VisualScripting/FungusCommand.cs

@@ -0,0 +1,80 @@
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace Fungus
+{
+	
+	public class FungusCommand : MonoBehaviour 
+	{
+		[HideInInspector]
+		public string errorMessage = "";
+
+		[HideInInspector]
+		public SequenceController parentSequenceController;
+
+		[HideInInspector]
+		public Sequence parentSequence;
+
+		public virtual void Start()
+		{
+			parentSequence = GetComponent<Sequence>();
+
+			// Populate sequenceController reference
+			Transform parent = transform.parent;		
+			while (parent != null)
+			{
+				parentSequenceController = parent.gameObject.GetComponent<SequenceController>();
+				if (parentSequenceController != null)
+				{
+					break;
+				}
+			}
+		}
+
+		public bool IsExecuting()
+		{
+			if (parentSequence == null)
+			{
+				return false;
+			}
+
+			return (parentSequence.activeCommand == this);
+		}
+
+		public virtual void Execute()
+		{
+			OnEnter();
+			OnExecute();
+		}
+
+		public virtual void ExecuteNextCommand()
+		{
+			OnExit();
+			parentSequence.ExecuteNextCommand(this);
+		}
+
+		public virtual void ExecuteSequence(Sequence s)
+		{
+			OnExit();
+			parentSequence.Finish();
+			parentSequenceController.ExecuteSequence(s);
+		}
+
+		public virtual void OnEnter()
+		{}
+
+		public virtual void OnExit()
+		{}
+
+		public virtual void OnExecute()
+		{}
+
+		public virtual void GetConnectedSequences(ref List<Sequence> connectedSequences)
+		{}
+	}
+
+}

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Assets/Fungus/VisualScripting/IfBooleanCommand.cs

@@ -0,0 +1,53 @@
+using UnityEngine;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace Fungus
+{
+
+	public class IfBooleanCommand : FungusCommand 
+	{
+		public string key;
+
+		public Sequence trueSequence;
+		public Sequence falseSequence;
+
+		public override void OnExecute()
+		{
+			if (Variables.GetBoolean(key))
+			{
+				ExecuteSequence(trueSequence);
+			}
+			else
+			{
+				ExecuteSequence(falseSequence);
+			}
+		}
+
+		public void OnDrawGizmos()
+		{
+			if (trueSequence == null || falseSequence == null)
+			{
+				errorMessage = "Please select true and false Sequence objects";
+			}
+			else
+			{
+				errorMessage = "";
+			}
+		}
+
+		public override void GetConnectedSequences(ref List<Sequence> connectedSequences)
+		{
+			if (trueSequence != null)
+			{
+				connectedSequences.Add(trueSequence);
+			}
+			if (falseSequence != null)
+			{
+				connectedSequences.Add(falseSequence);
+			}
+		}
+	}
+	
+}

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Assets/Fungus/VisualScripting/SayCommand.cs

@@ -0,0 +1,59 @@
+using UnityEngine;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace Fungus
+{
+
+	public class SayCommand : FungusCommand 
+	{
+		public string text;
+
+		public List<Sequence> options = new List<Sequence>();
+
+		public override void OnExecute()
+		{
+			Dialog dialog = Game.GetInstance().dialog;
+
+			foreach (Sequence sequence in options)
+			{
+				Sequence s = sequence;
+			
+				dialog.AddOption(sequence.titleText, () => { 
+					ExecuteSequence(s); 
+				});
+			}
+
+			dialog.Say (text, delegate {
+				ExecuteNextCommand();
+			});
+		}
+
+		public void OnDrawGizmos()
+		{
+			errorMessage = "";
+			int i = 0;
+			foreach (Sequence sequence in options)
+			{
+				if (sequence == null)
+				{
+					errorMessage = "Please select a Sequence for option " + i;
+					break;
+				}
+			}
+		}
+
+		public override void GetConnectedSequences(ref List<Sequence> connectedSequences)
+		{
+			foreach (Sequence sequence in options)
+			{
+				if (sequence != null)
+				{
+					connectedSequences.Add(sequence);
+				}
+			}
+		}
+	}
+
+}

Assets/Fungus/VisualScripting/SayCommand.cs.meta

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Assets/Fungus/VisualScripting/Sequence.cs

@@ -0,0 +1,119 @@
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace Fungus
+{
+
+	public class Sequence : MonoBehaviour 
+	{
+		public string titleText;
+
+		[HideInInspector]
+		public Rect nodeRect = new Rect(10, 10, 100, 100);
+	
+		[HideInInspector]
+		public SequenceController sequenceController;
+
+		[HideInInspector]
+		public FungusCommand activeCommand;
+
+		public virtual void Start()
+		{
+			// Populate sequenceController reference
+			Transform parent = transform.parent;		
+			while (parent != null)
+			{
+				sequenceController = parent.gameObject.GetComponent<SequenceController>();
+				if (sequenceController != null)
+				{
+					break;
+				}
+			}
+		}
+
+		public bool HasError()
+		{
+			FungusCommand[] commands = GetComponents<FungusCommand>();
+			foreach (FungusCommand command in commands)
+			{
+				if (command.errorMessage.Length > 0)
+				{
+					return true;
+				}
+			}
+
+			return false;
+		}
+
+		public bool IsRunning()
+		{
+			if (sequenceController == null ||
+			    sequenceController.activeSequence == null)
+			{
+				return false;
+			}
+
+			return (sequenceController.activeSequence == this);
+		}
+
+		public void ExecuteNextCommand(FungusCommand currentCommand = null)
+		{
+			activeCommand = null;
+			FungusCommand nextCommand = null;
+
+			bool executeNext = (currentCommand == null);
+			FungusCommand[] commands = GetComponents<FungusCommand>();
+			foreach (FungusCommand command in commands)
+			{
+				if (command == currentCommand)
+				{
+					executeNext = true;
+				}
+				else if (executeNext)
+				{
+					nextCommand = command;
+					break;
+				}
+			}
+
+			if (nextCommand == null)
+			{
+				Finish();
+			}
+			else
+			{
+				if (sequenceController.stepTime == 0f)
+				{
+					activeCommand = nextCommand;
+					nextCommand.Execute();
+				}
+				else
+				{
+					StartCoroutine(ExecuteAfterDelay(nextCommand, sequenceController.stepTime));
+				}
+			}
+
+		}
+
+		IEnumerator ExecuteAfterDelay(FungusCommand command, float delay)
+		{
+			activeCommand = command;
+			yield return new WaitForSeconds(delay);
+			command.Execute();
+		}
+
+		public void Finish()
+		{
+			activeCommand = null;
+
+			// No more commands to run in current sequence
+			#if UNITY_EDITOR
+			Selection.activeGameObject = sequenceController.gameObject;
+			#endif
+		}
+	}
+}

Assets/Fungus/VisualScripting/Sequence.cs.meta

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Assets/Fungus/VisualScripting/SequenceController.cs

@@ -0,0 +1,28 @@
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+using UnityEngine;
+using System.Collections;
+using Fungus;
+
+public class SequenceController : MonoBehaviour 
+{
+	public float stepTime;
+
+	public Sequence activeSequence;
+
+	public void ExecuteSequence(Sequence sequence)
+	{
+		if (activeSequence == null)
+		{
+			return;
+		}
+
+#if UNITY_EDITOR
+		Selection.activeGameObject = sequence.gameObject;
+#endif
+
+		activeSequence = sequence;
+		sequence.ExecuteNextCommand();
+	}
+}

Assets/Fungus/VisualScripting/SequenceController.cs.meta

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Assets/Fungus/VisualScripting/SetBooleanCommand.cs

@@ -0,0 +1,22 @@
+using UnityEngine;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace Fungus
+{
+
+	public class SetBooleanCommand : FungusCommand 
+	{
+		public string key;
+
+		public bool value;
+
+		public override void OnExecute()
+		{
+			Variables.SetBoolean(key, value);
+			ExecuteNextCommand();
+		}
+	}
+	
+}

Assets/Fungus/VisualScripting/SetBooleanCommand.cs.meta

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Assets/Fungus/VisualScripting/WaitCommand.cs

@@ -0,0 +1,24 @@
+using UnityEngine;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace Fungus
+{
+
+	public class WaitCommand : FungusCommand 
+	{
+		public float duration;
+
+		public override void OnExecute()
+		{
+			Invoke ("OnWaitComplete", duration);
+		}
+
+		void OnWaitComplete()
+		{
+			ExecuteNextCommand();
+		}
+	}
+
+}

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