Change #66 User extendible variables system

Added Other category for non-core variable types.
Wider variable window to fit long type names.
Use internal editor component paste instead of reflection to paste
commands
SetVariable only supports 4 basic variable types.
Simplified definition for new variable types.
Added new variable types to support core Unity types.

Assets/Fungus/FungusScript/Editor/FungusScriptEditor.cs

@@ -4,12 +4,19 @@ using System.Collections;
 using System.Collections.Generic;
 using Rotorz.ReorderableList;
 using System.Linq;
+using System.Reflection;
 
 namespace Fungus
 {
 	[CustomEditor (typeof(FungusScript))]
 	public class FungusScriptEditor : Editor 
 	{
+		protected class AddVariableInfo
+		{
+			public FungusScript fungusScript;
+			public System.Type variableType;
+		}
+
 		protected SerializedProperty descriptionProp;
 		protected SerializedProperty colorCommandsProp;
 		protected SerializedProperty hideComponentsProp;
@@ -118,10 +125,45 @@ namespace Fungus
 				{
 					GenericMenu menu = new GenericMenu ();
 
-					menu.AddItem(new GUIContent ("Boolean"), false, AddVariable<BooleanVariable>, t);
-					menu.AddItem (new GUIContent ("Integer"), false, AddVariable<IntegerVariable>, t);
-					menu.AddItem (new GUIContent ("Float"), false, AddVariable<FloatVariable>, t);
-					menu.AddItem (new GUIContent ("String"), false, AddVariable<StringVariable>, t);
+					List<System.Type> types = FindAllDerivedTypes<Variable>();
+
+					// Add variable types without a category
+					foreach (System.Type type in types)
+					{
+						VariableInfoAttribute variableInfo = VariableEditor.GetVariableInfo(type);
+						if (variableInfo == null ||
+						    variableInfo.Category != "")
+						{
+							continue;
+						}
+
+						AddVariableInfo addVariableInfo = new AddVariableInfo();
+						addVariableInfo.fungusScript = t;
+						addVariableInfo.variableType = type;
+
+						GUIContent typeName = new GUIContent(variableInfo.VariableType);
+
+						menu.AddItem(typeName, false, AddVariable, addVariableInfo);
+					}
+
+					// Add types with a category
+					foreach (System.Type type in types)
+					{
+						VariableInfoAttribute variableInfo = VariableEditor.GetVariableInfo(type);
+						if (variableInfo == null ||
+						    variableInfo.Category == "")
+						{
+							continue;
+						}
+
+						AddVariableInfo info = new AddVariableInfo();
+						info.fungusScript = t;
+						info.variableType = type;
+
+						GUIContent typeName = new GUIContent(variableInfo.Category + "/" + variableInfo.VariableType);
+
+						menu.AddItem(typeName, false, AddVariable, info);
+					}
 
 					menu.ShowAsContext ();
 				}
@@ -130,19 +172,39 @@ namespace Fungus
 			serializedObject.ApplyModifiedProperties();
 		}
 
-		protected virtual void AddVariable<T>(object obj) where T : Variable
+		protected virtual void AddVariable(object obj)
 		{
-			FungusScript fungusScript = obj as FungusScript;
-			if (fungusScript == null)
+			AddVariableInfo addVariableInfo = obj as AddVariableInfo;
+			if (addVariableInfo == null)
 			{
 				return;
 			}
 
+			FungusScript fungusScript = addVariableInfo.fungusScript;
+			System.Type variableType = addVariableInfo.variableType;
+
 			Undo.RecordObject(fungusScript, "Add Variable");
-			T newVariable = fungusScript.gameObject.AddComponent<T>();
+			Variable newVariable = fungusScript.gameObject.AddComponent(variableType) as Variable;
 			newVariable.key = fungusScript.GetUniqueVariableKey("");
 			fungusScript.variables.Add(newVariable);
 		}
+
+		public static List<System.Type> FindAllDerivedTypes<T>()
+		{
+			return FindAllDerivedTypes<T>(Assembly.GetAssembly(typeof(T)));
+		}
+		
+		public static List<System.Type> FindAllDerivedTypes<T>(Assembly assembly)
+		{
+			var derivedType = typeof(T);
+			return assembly
+				.GetTypes()
+					.Where(t =>
+					       t != derivedType &&
+					       derivedType.IsAssignableFrom(t)
+					       ).ToList();
+			
+		} 
 	}
 	
 }

Assets/Fungus/FungusScript/Editor/FungusScriptWindow.cs

@@ -161,7 +161,7 @@ namespace Fungus
 
 			GUILayout.BeginHorizontal();
 
-			GUILayout.BeginVertical(GUILayout.Width(400));
+			GUILayout.BeginVertical(GUILayout.Width(440));
 		
 			GUILayout.FlexibleSpace();
 

Assets/Fungus/FungusScript/Editor/SequenceEditor.cs

@@ -1,4 +1,5 @@
 using UnityEditor;
+using UnityEditorInternal;
 using UnityEngine;
 using System;
 using System.Collections;
@@ -580,18 +581,23 @@ namespace Fungus
 			
 			foreach (Command command in commandCopyBuffer.GetCommands())
 			{
-				System.Type type = command.GetType();
-				Command newCommand = Undo.AddComponent(fungusScript.selectedSequence.gameObject, type) as Command;
-				newCommand.parentSequence = fungusScript.selectedSequence;
-
-				System.Reflection.FieldInfo[] fields = type.GetFields();
-				foreach (System.Reflection.FieldInfo field in fields)
+				// Using the Editor copy / paste functionality instead instead of reflection
+				// because this does a deep copy of the command properties.
+				if (ComponentUtility.CopyComponent(command))
 				{
-					field.SetValue(newCommand, field.GetValue(command));
-				}
+					if (ComponentUtility.PasteComponentAsNew(fungusScript.gameObject))
+					{
+						Command[] commands = fungusScript.GetComponents<Command>();
+						Command pastedCommand = commands.Last<Command>();
+						if (pastedCommand != null)
+						{
+							fungusScript.selectedSequence.commandList.Insert(pasteIndex++, pastedCommand);
+						}
+					}
 
-				Undo.RecordObject(fungusScript.selectedSequence, "Paste");
-				fungusScript.selectedSequence.commandList.Insert(pasteIndex++, newCommand);
+					// This stops the user pasting the command manually into another game object.
+					ComponentUtility.CopyComponent(fungusScript.transform);
+				}
 			}
 
 			Repaint();

Assets/Fungus/FungusScript/Editor/SetVariableEditor.cs

@@ -40,8 +40,11 @@ namespace Fungus
 
 			VariableEditor.VariableField(variableProp, 
 			                             new GUIContent("Set Variable", "Variable to set"),
-			                             fungusScript);
-
+			                             fungusScript,
+			                             (v) => (v.GetType() == typeof(BooleanVariable) ||
+			        							 v.GetType() == typeof(IntegerVariable) ||
+			        							 v.GetType() == typeof(FloatVariable) ||
+			        							 v.GetType() == typeof(StringVariable)));
 
 			if (variableProp.objectReferenceValue == null)
 			{

Assets/Fungus/FungusScript/Editor/VariableEditor.cs

@@ -17,6 +17,21 @@ namespace Fungus
 			t.hideFlags = HideFlags.HideInInspector;
 		}
 
+		public static VariableInfoAttribute GetVariableInfo(System.Type variableType)
+		{
+			object[] attributes = variableType.GetCustomAttributes(typeof(VariableInfoAttribute), false);
+			foreach (object obj in attributes)
+			{
+				VariableInfoAttribute variableInfoAttr = obj as VariableInfoAttribute;
+				if (variableInfoAttr != null)
+				{
+					return variableInfoAttr;
+				}
+			}
+			
+			return null;
+		}
+
 		static public void VariableField(SerializedProperty property, GUIContent label, FungusScript fungusScript, Func<Variable, bool> filter = null)
 		{
 			List<string> variableKeys = new List<string>();
@@ -81,166 +96,32 @@ namespace Fungus
 		}
 	}
 
-	[CustomPropertyDrawer (typeof(BooleanData))]
-	public class BooleanDataDrawer : PropertyDrawer 
+	public class VariableDataDrawer<T> : PropertyDrawer where T : Variable
 	{	
-		protected enum BooleanState
-		{
-			True,
-			False
-		}
 
 		public override void OnGUI (Rect position, SerializedProperty property, GUIContent label) 
 		{
 			EditorGUI.BeginProperty(position, label, property);
 
-			SerializedProperty referenceProp = property.FindPropertyRelative("booleanRef");
-			SerializedProperty valueProp = property.FindPropertyRelative("booleanVal");
-
-			const int popupWidth = 65;
+			// The variable reference and data properties must follow the naming convention 'typeRef', 'typeVal'
 
-			Rect controlRect = EditorGUI.PrefixLabel(position, label);
-			Rect valueRect = controlRect;
-			valueRect.width = controlRect.width - popupWidth - 5;
-			Rect popupRect = controlRect;
-
-			if (referenceProp.objectReferenceValue == null)
+			VariableInfoAttribute typeInfo = VariableEditor.GetVariableInfo(typeof(T));
+			if (typeInfo == null)
 			{
-				valueProp.boolValue = ((BooleanState)EditorGUI.EnumPopup(valueRect, valueProp.boolValue ? BooleanState.True : BooleanState.False) == BooleanState.True);
-				popupRect.x += valueRect.width + 5;
-				popupRect.width = popupWidth;
+				return;
 			}
 
-			FungusScript fungusScript = property.serializedObject.targetObject as FungusScript;
-			if (fungusScript == null)
-			{
-				Command command = property.serializedObject.targetObject as Command;
-				if (command != null)
-				{
-					fungusScript = command.GetFungusScript();
-				}
-			}
-
-			if (fungusScript != null)
-			{
-				BooleanVariable selectedBooleanVariable = referenceProp.objectReferenceValue as BooleanVariable;
-
-				List<string> variableKeys = new List<string>();
-				List<Variable> variableObjects = new List<Variable>();
-				
-				variableKeys.Add("<Value>");
-				variableObjects.Add(null);
-				
-				int index = 0;
-				int selectedIndex = 0;
-				foreach (Variable v in fungusScript.variables)
-				{
-					if (v.GetType() != typeof(BooleanVariable))
-					{
-						continue;
-					}
+			string propNameBase = typeInfo.VariableType;
+			propNameBase = Char.ToLowerInvariant(propNameBase[0]) + propNameBase.Substring(1);
 
-					variableKeys.Add(v.key);
-					variableObjects.Add(v);
+			SerializedProperty referenceProp = property.FindPropertyRelative(propNameBase + "Ref");
+			SerializedProperty valueProp = property.FindPropertyRelative(propNameBase + "Val");
 
-					index++;
-					
-					if (v == selectedBooleanVariable)
-					{
-						selectedIndex = index;
-					}
-				}
-				
-				selectedIndex = EditorGUI.Popup(popupRect, selectedIndex, variableKeys.ToArray());
-				referenceProp.objectReferenceValue = variableObjects[selectedIndex];
-			}
-
-			EditorGUI.EndProperty();
-		}
-	}
-
-	[CustomPropertyDrawer (typeof(IntegerData))]
-	public class IntegerDataDrawer : PropertyDrawer 
-	{	
-		public override void OnGUI (Rect position, SerializedProperty property, GUIContent label) 
-		{
-			EditorGUI.BeginProperty(position, label, property);
-			
-			SerializedProperty referenceProp = property.FindPropertyRelative("integerRef");
-			SerializedProperty valueProp = property.FindPropertyRelative("integerVal");
-
-			const int popupWidth = 65;
-			
-			Rect controlRect = EditorGUI.PrefixLabel(position, label);
-			Rect valueRect = controlRect;
-			valueRect.width = controlRect.width - popupWidth - 5;
-			Rect popupRect = controlRect;
-
-			if (referenceProp.objectReferenceValue == null)
-			{
-				valueProp.intValue = EditorGUI.IntField(valueRect, valueProp.intValue);
-				popupRect.x += valueRect.width + 5;
-				popupRect.width = popupWidth;
-			}
-
-			FungusScript fungusScript = property.serializedObject.targetObject as FungusScript;
-			if (fungusScript == null)
+			if (referenceProp == null || valueProp == null)
 			{
-				Command command = property.serializedObject.targetObject as Command;
-				if (command != null)
-				{
-					fungusScript = command.GetFungusScript();
-				}
+				return;
 			}
 
-			if (fungusScript != null)
-			{
-				IntegerVariable selectedVariable = referenceProp.objectReferenceValue as IntegerVariable;
-				
-				List<string> variableKeys = new List<string>();
-				List<Variable> variableObjects = new List<Variable>();
-				
-				variableKeys.Add("<Value>");
-				variableObjects.Add(null);
-				
-				int index = 0;
-				int selectedIndex = 0;
-				foreach (Variable v in fungusScript.variables)
-				{
-					if (v.GetType() != typeof(IntegerVariable))
-					{
-						continue;
-					}
-					
-					variableKeys.Add(v.key);
-					variableObjects.Add(v);
-					
-					index++;
-					
-					if (v == selectedVariable)
-					{
-						selectedIndex = index;
-					}
-				}
-				
-				selectedIndex = EditorGUI.Popup(popupRect, selectedIndex, variableKeys.ToArray());
-				referenceProp.objectReferenceValue = variableObjects[selectedIndex];
-			}
-
-			EditorGUI.EndProperty();
-		}
-	}
-
-	[CustomPropertyDrawer (typeof(FloatData))]
-	public class FloatDataDrawer : PropertyDrawer 
-	{	
-		public override void OnGUI (Rect position, SerializedProperty property, GUIContent label) 
-		{
-			EditorGUI.BeginProperty(position, label, property);
-			
-			SerializedProperty referenceProp = property.FindPropertyRelative("floatRef");
-			SerializedProperty valueProp = property.FindPropertyRelative("floatVal");
-
 			const int popupWidth = 65;
 			
 			Rect controlRect = EditorGUI.PrefixLabel(position, label);
@@ -250,7 +131,7 @@ namespace Fungus
 			
 			if (referenceProp.objectReferenceValue == null)
 			{
-				valueProp.floatValue = EditorGUI.FloatField(valueRect, valueProp.floatValue);
+				EditorGUI.PropertyField(valueRect, valueProp, new GUIContent(""));
 				popupRect.x += valueRect.width + 5;
 				popupRect.width = popupWidth;
 			}
@@ -267,7 +148,7 @@ namespace Fungus
 			
 			if (fungusScript != null)
 			{
-				FloatVariable selectedVariable = referenceProp.objectReferenceValue as FloatVariable;
+				T selectedVariable = referenceProp.objectReferenceValue as T;
 				
 				List<string> variableKeys = new List<string>();
 				List<Variable> variableObjects = new List<Variable>();
@@ -279,7 +160,7 @@ namespace Fungus
 				int selectedIndex = 0;
 				foreach (Variable v in fungusScript.variables)
 				{
-					if (v.GetType() != typeof(FloatVariable))
+					if (v.GetType() != typeof(T))
 					{
 						continue;
 					}
@@ -303,77 +184,51 @@ namespace Fungus
 		}
 	}
 
-	[CustomPropertyDrawer (typeof(StringData))]
-	public class StringDataDrawer : PropertyDrawer 
-	{	
-		public override void OnGUI (Rect position, SerializedProperty property, GUIContent label) 
-		{
-			EditorGUI.BeginProperty(position, label, property);
-			
-			SerializedProperty referenceProp = property.FindPropertyRelative("stringRef");
-			SerializedProperty valueProp = property.FindPropertyRelative("stringVal");
-			
-			const int popupWidth = 65;
-			
-			Rect controlRect = EditorGUI.PrefixLabel(position, label);
-			Rect valueRect = controlRect;
-			valueRect.width = controlRect.width - popupWidth - 5;
-			Rect popupRect = controlRect;
-			
-			if (referenceProp.objectReferenceValue == null)
-			{
-				// StringData stringData = valueProp.serializedObject
-				valueProp.stringValue = EditorGUI.TextField(valueRect, valueProp.stringValue);
-				popupRect.x += valueRect.width + 5;
-				popupRect.width = popupWidth;
-			}
+	[CustomPropertyDrawer (typeof(BooleanData))]
+	public class BooleanDataDrawer : VariableDataDrawer<BooleanVariable>
+	{}
 
-			FungusScript fungusScript = property.serializedObject.targetObject as FungusScript;
-			if (fungusScript == null)
-			{
-				Command command = property.serializedObject.targetObject as Command;
-				if (command != null)
-				{
-					fungusScript = command.GetFungusScript();
-				}
-			}
+	[CustomPropertyDrawer (typeof(IntegerData))]
+	public class IntegerDataDrawer : VariableDataDrawer<IntegerVariable>
+	{}
 
-			if (fungusScript != null)
-			{
-				StringVariable selectedVariable = referenceProp.objectReferenceValue as StringVariable;
+	[CustomPropertyDrawer (typeof(FloatData))]
+	public class FloatDataDrawer : VariableDataDrawer<FloatVariable>
+	{}
 
-				List<string> variableKeys = new List<string>();
-				List<Variable> variableObjects = new List<Variable>();
+	[CustomPropertyDrawer (typeof(StringData))]
+	public class StringDataDrawer : VariableDataDrawer<StringVariable>
+	{}
 
-				variableKeys.Add("<Value>");
-				variableObjects.Add(null);
+	[CustomPropertyDrawer (typeof(ColorData))]
+	public class ColorDataDrawer : VariableDataDrawer<ColorVariable>
+	{}
 
-				int index = 0;
-				int selectedIndex = 0;
-				foreach (Variable v in fungusScript.variables)
-				{
-					if (v.GetType() != typeof(StringVariable))
-					{
-						continue;
-					}
+	[CustomPropertyDrawer (typeof(Vector2Data))]
+	public class Vector2DataDrawer : VariableDataDrawer<Vector2Variable>
+	{}
 
-					variableKeys.Add(v.key);
-					variableObjects.Add(v);
+	[CustomPropertyDrawer (typeof(Vector3Data))]
+	public class Vector3DataDrawer : VariableDataDrawer<Vector3Variable>
+	{}
 	
-					index++;
+	[CustomPropertyDrawer (typeof(MaterialData))]
+	public class MaterialDataDrawer : VariableDataDrawer<MaterialVariable>
+	{}
 
-					if (v == selectedVariable)
-					{
-						selectedIndex = index;
-					}
-				}
+	[CustomPropertyDrawer (typeof(TextureData))]
+	public class TextureDataDrawer : VariableDataDrawer<TextureVariable>
+	{}
 
-				selectedIndex = EditorGUI.Popup(popupRect, selectedIndex, variableKeys.ToArray());
-				referenceProp.objectReferenceValue = variableObjects[selectedIndex];
-			}
+	[CustomPropertyDrawer (typeof(SpriteData))]
+	public class SpriteDataDrawer : VariableDataDrawer<SpriteVariable>
+	{}
 
-			EditorGUI.EndProperty();
-		}
-	}
+	[CustomPropertyDrawer (typeof(GameObjectData))]
+	public class GameObjectDataDrawer : VariableDataDrawer<GameObjectVariable>
+	{}
 	
+	[CustomPropertyDrawer (typeof(ObjectData))]
+	public class ObjectDataDrawer : VariableDataDrawer<ObjectVariable>
+	{}
 }

Assets/Fungus/FungusScript/Editor/VariableListAdaptor.cs

@@ -91,7 +91,7 @@ namespace Fungus
 				return;
 			}
 
-			float[] widths = { 50, 100, 130, 60 };
+			float[] widths = { 80, 100, 140, 60 };
 			Rect[] rects = new Rect[4];
 
 			for (int i = 0; i < 4; ++i)
@@ -105,22 +105,10 @@ namespace Fungus
 				}
 			}
 
-			string type = "";
-			if (variable.GetType() == typeof(BooleanVariable))
+			VariableInfoAttribute variableInfo = VariableEditor.GetVariableInfo(variable.GetType());
+			if (variableInfo == null)
 			{
-				type = "Boolean";
-			}
-			else if (variable.GetType() == typeof(IntegerVariable))
-			{
-				type = "Integer";
-			}
-			else if (variable.GetType() == typeof(FloatVariable))
-			{
-				type = "Float";
-			}
-			else if (variable.GetType() == typeof(StringVariable))
-			{
-				type = "String";
+				return;
 			}
 
 			FungusScript fungusScript = FungusScriptWindow.GetFungusScript();
@@ -165,7 +153,7 @@ namespace Fungus
 
 			variableObject.Update();
 
-			GUI.Label(rects[0], type);
+			GUI.Label(rects[0], variableInfo.VariableType);
 
 			key = EditorGUI.TextField(rects[1], variable.key);
 			SerializedProperty keyProp = variableObject.FindProperty("key");

Assets/Fungus/FungusScript/Scripts/Commands/SetVariable.cs

@@ -5,7 +5,7 @@ namespace Fungus
 {
 	[CommandInfo("Scripting", 
 	             "Set Variable", 
-	             "Sets a variable to a new value using simple arithmetic operations. The value can be a constant or another variable.")]
+	             "Sets a Boolean, Integer, Float or String variable to a new value using a simple arithmetic operation. The value can be a constant or reference another variable of the same type.")]
 	public class SetVariable : Command 
 	{
 		public enum SetOperator

Assets/Fungus/FungusScript/Scripts/FungusScript.cs

@@ -200,7 +200,8 @@ namespace Fungus
 				bool collision = false;
 				foreach(Variable variable in variables)
 				{
-					if (variable == ignoreVariable ||
+					if (variable == null ||
+						variable == ignoreVariable ||
 					    variable.key == null)
 					{
 						continue;

Assets/Fungus/FungusScript/Scripts/Variable.cs

@@ -1,30 +1,60 @@
 using UnityEngine;
 using System;
 using System.Collections;
+using System.Collections.Generic;
 
 namespace Fungus
 {
-	public enum VariableType
-	{
-		Boolean,
-		Integer,
-		Float,
-		String
-	}
-
 	public enum VariableScope
 	{
 		Private,
 		Public
 	}
 
+	public class VariableInfoAttribute : Attribute
+	{
+		public VariableInfoAttribute(string category, string variableType, int order = 0)
+		{
+			this.Category = category;
+			this.VariableType = variableType;
+			this.Order = order;
+		}
+		
+		public string Category { get; set; }
+		public string VariableType { get; set; }
+		public int Order { get; set; }
+	}
+
 	[RequireComponent(typeof(FungusScript))]
-	public class Variable : MonoBehaviour
+	public abstract class Variable : MonoBehaviour
 	{
 		public VariableScope scope;
+
 		public string key = "";
 
-		public virtual void OnReset()
-		{}
+		public abstract void OnReset();
+	}
+
+	public abstract class VariableBase<T> : Variable
+	{
+		public T value;
+		
+		protected T startValue;
+
+		public override void OnReset()
+		{
+			value = startValue;
+		}
+		
+		public override string ToString()
+		{
+			return value.ToString();
+		}
+		
+		protected virtual void Start()
+		{
+			// Remember the initial value so we can reset later on
+			startValue = value;
+		}
 	}
 }

Assets/Fungus/FungusScript/Scripts/VariableTypes.meta

@@ -0,0 +1,5 @@
+fileFormatVersion: 2
+guid: cfe3f48ef180d4baa9d1095720810b9d
+folderAsset: yes
+DefaultImporter:
+  userData: 

Assets/Fungus/FungusScript/Scripts/VariableTypes/BooleanVariable.cs

@@ -5,30 +5,12 @@ using System.Collections;
 namespace Fungus
 {
 
-	public class BooleanVariable : Variable 
-	{
-		public bool value;
-
-		protected bool startValue;
-
-		public override void OnReset()
-		{
-			value = startValue;
-		}
-
-		public override string ToString()
-		{
-			return value.ToString();
-		}
-
-		protected virtual void Start()
-		{
-			startValue = value;
-		}
-	}
+	[VariableInfo("", "Boolean")]
+	public class BooleanVariable : VariableBase<bool>
+	{}
 
 	[System.Serializable]
-	public struct BooleanData
+	public class BooleanData
 	{
 		[SerializeField]
 		public BooleanVariable booleanRef;

Assets/Fungus/FungusScript/Scripts/VariableTypes/ColorVariable.cs

@@ -0,0 +1,38 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[VariableInfo("Other", "Color")]
+	public class ColorVariable : VariableBase<Color>
+	{}
+
+	[System.Serializable]
+	public class ColorData
+	{
+		[SerializeField]
+		public ColorVariable colorRef;
+		
+		[SerializeField]
+		public Color colorVal;
+		
+		public Color Value
+		{
+			get { return (colorRef == null) ? colorVal : colorRef.value; }
+			set { if (colorRef == null) { colorVal = value; } else { colorRef.value = value; } }
+		}
+
+		public string GetDescription()
+		{
+			if (colorRef == null)
+			{
+				return colorVal.ToString();
+			}
+			else
+			{
+				return colorRef.key;
+			}
+		}
+	}
+
+}

Assets/Fungus/FungusScript/Scripts/VariableTypes/ColorVariable.cs.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: ea5b85dd356214c4c92b08ec04d89927
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 

Assets/Fungus/FungusScript/Scripts/VariableTypes/FloatVariable.cs

@@ -3,31 +3,12 @@ using System.Collections;
 
 namespace Fungus
 {
-
-	public class FloatVariable : Variable 
-	{
-		public float value;
-
-		protected float startValue;
-
-		public override void OnReset()
-		{
-			value = startValue;
-		}
-
-		public override string ToString()
-		{
-			return value.ToString();
-		}
-
-		protected virtual void Start()
-		{
-			startValue = value;
-		}
-	}
+	[VariableInfo("", "Float")]
+	public class FloatVariable : VariableBase<float>
+	{}
 
 	[System.Serializable]
-	public struct FloatData
+	public class FloatData
 	{
 		[SerializeField]
 		public FloatVariable floatRef;

Assets/Fungus/FungusScript/Scripts/VariableTypes/GameObjectVariable.cs

@@ -0,0 +1,38 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[VariableInfo("Other", "GameObject")]
+	public class GameObjectVariable : VariableBase<GameObject>
+	{}
+
+	[System.Serializable]
+	public class GameObjectData
+	{
+		[SerializeField]
+		public GameObjectVariable gameObjectRef;
+		
+		[SerializeField]
+		public GameObject gameObjectVal;
+		
+		public GameObject Value
+		{
+			get { return (gameObjectRef == null) ? gameObjectVal : gameObjectRef.value; }
+			set { if (gameObjectRef == null) { gameObjectVal = value; } else { gameObjectRef.value = value; } }
+		}
+
+		public string GetDescription()
+		{
+			if (gameObjectRef == null)
+			{
+				return gameObjectVal.ToString();
+			}
+			else
+			{
+				return gameObjectRef.key;
+			}
+		}
+	}
+
+}

Assets/Fungus/FungusScript/Scripts/VariableTypes/GameObjectVariable.cs.meta

@@ -0,0 +1,8 @@
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+guid: b1941e052c0ed4280b25507cd2e6ad8f
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
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Assets/Fungus/FungusScript/Scripts/VariableTypes/IntegerVariable.cs

@@ -3,31 +3,12 @@ using System.Collections;
 
 namespace Fungus
 {
-
-	public class IntegerVariable : Variable 
-	{
-		public int value;
-
-		protected int startValue;
-
-		public override void OnReset()
-		{
-			value = startValue;
-		}
-
-		public override string ToString()
-		{
-			return value.ToString();
-		}
-
-		protected virtual void Start()
-		{
-			startValue = value;
-		}
-	}
+	[VariableInfo("", "Integer")]
+	public class IntegerVariable : VariableBase<int> 
+	{}
 
 	[System.Serializable]
-	public struct IntegerData
+	public class IntegerData
 	{
 		[SerializeField]
 		public IntegerVariable integerRef;

Assets/Fungus/FungusScript/Scripts/VariableTypes/MaterialVariable.cs

@@ -0,0 +1,38 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[VariableInfo("Other", "Material")]
+	public class MaterialVariable : VariableBase<Material>
+	{}
+
+	[System.Serializable]
+	public class MaterialData
+	{
+		[SerializeField]
+		public MaterialVariable materialRef;
+		
+		[SerializeField]
+		public Material materialVal;
+		
+		public Material Value
+		{
+			get { return (materialRef == null) ? materialVal : materialRef.value; }
+			set { if (materialRef == null) { materialVal = value; } else { materialRef.value = value; } }
+		}
+
+		public string GetDescription()
+		{
+			if (materialRef == null)
+			{
+				return materialVal.ToString();
+			}
+			else
+			{
+				return materialRef.key;
+			}
+		}
+	}
+
+}

Assets/Fungus/FungusScript/Scripts/VariableTypes/MaterialVariable.cs.meta

@@ -0,0 +1,8 @@
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+  executionOrder: 0
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Assets/Fungus/FungusScript/Scripts/VariableTypes/ObjectVariable.cs

@@ -0,0 +1,38 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[VariableInfo("Other", "Object")]
+	public class ObjectVariable : VariableBase<Object>
+	{}
+
+	[System.Serializable]
+	public class ObjectData
+	{
+		[SerializeField]
+		public ObjectVariable objectRef;
+		
+		[SerializeField]
+		public Object objectVal;
+		
+		public Object Value
+		{
+			get { return (objectRef == null) ? objectVal : objectRef.value; }
+			set { if (objectRef == null) { objectVal = value; } else { objectRef.value = value; } }
+		}
+
+		public string GetDescription()
+		{
+			if (objectRef == null)
+			{
+				return objectVal.ToString();
+			}
+			else
+			{
+				return objectRef.key;
+			}
+		}
+	}
+
+}

Assets/Fungus/FungusScript/Scripts/VariableTypes/ObjectVariable.cs.meta

@@ -0,0 +1,8 @@
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Assets/Fungus/FungusScript/Scripts/VariableTypes/SpriteVariable.cs

@@ -0,0 +1,38 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[VariableInfo("Other", "Sprite")]
+	public class SpriteVariable : VariableBase<Sprite>
+	{}
+
+	[System.Serializable]
+	public class SpriteData
+	{
+		[SerializeField]
+		public SpriteVariable spriteRef;
+		
+		[SerializeField]
+		public Sprite spriteVal;
+		
+		public Sprite Value
+		{
+			get { return (spriteRef == null) ? spriteVal : spriteRef.value; }
+			set { if (spriteRef == null) { spriteVal = value; } else { spriteRef.value = value; } }
+		}
+
+		public string GetDescription()
+		{
+			if (spriteRef == null)
+			{
+				return spriteVal.ToString();
+			}
+			else
+			{
+				return spriteRef.key;
+			}
+		}
+	}
+
+}

Assets/Fungus/FungusScript/Scripts/VariableTypes/SpriteVariable.cs.meta

@@ -0,0 +1,8 @@
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Assets/Fungus/FungusScript/Scripts/VariableTypes/StringVariable.cs

@@ -4,30 +4,12 @@ using System.Collections;
 namespace Fungus
 {
 
-	public class StringVariable : Variable 
-	{
-		public string value = "";
-
-		protected string startValue = "";
-
-		public override void OnReset()
-		{
-			value = startValue;
-		}
-
-		public override string ToString()
-		{
-			return value.ToString();
-		}
-
-		protected virtual void Start()
-		{
-			startValue = value;
-		}
-	}
+	[VariableInfo("", "String")]
+	public class StringVariable : VariableBase<string>
+	{}
 
 	[System.Serializable]
-	public struct StringData
+	public class StringData
 	{
 		[SerializeField]
 		public StringVariable stringRef;

Assets/Fungus/FungusScript/Scripts/VariableTypes/TextureVariable.cs

@@ -0,0 +1,38 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[VariableInfo("Other", "Texture")]
+	public class TextureVariable : VariableBase<Texture>
+	{}
+
+	[System.Serializable]
+	public class TextureData
+	{
+		[SerializeField]
+		public TextureVariable textureRef;
+		
+		[SerializeField]
+		public Texture textureVal;
+		
+		public Texture Value
+		{
+			get { return (textureRef == null) ? textureVal : textureRef.value; }
+			set { if (textureRef == null) { textureVal = value; } else { textureRef.value = value; } }
+		}
+
+		public string GetDescription()
+		{
+			if (textureRef == null)
+			{
+				return textureVal.ToString();
+			}
+			else
+			{
+				return textureRef.key;
+			}
+		}
+	}
+
+}

Assets/Fungus/FungusScript/Scripts/VariableTypes/TextureVariable.cs.meta

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Assets/Fungus/FungusScript/Scripts/VariableTypes/Vector2Variable.cs

@@ -0,0 +1,38 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[VariableInfo("Other", "Vector2")]
+	public class Vector2Variable : VariableBase<Vector2>
+	{}
+
+	[System.Serializable]
+	public class Vector2Data
+	{
+		[SerializeField]
+		public Vector2Variable vector2Ref;
+		
+		[SerializeField]
+		public Vector2 vector2Val;
+		
+		public Vector2 Value
+		{
+			get { return (vector2Ref == null) ? vector2Val : vector2Ref.value; }
+			set { if (vector2Ref == null) { vector2Val = value; } else { vector2Ref.value = value; } }
+		}
+
+		public string GetDescription()
+		{
+			if (vector2Ref == null)
+			{
+				return vector2Val.ToString();
+			}
+			else
+			{
+				return vector2Ref.key;
+			}
+		}
+	}
+
+}

Assets/Fungus/FungusScript/Scripts/VariableTypes/Vector2Variable.cs.meta

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Assets/Fungus/FungusScript/Scripts/VariableTypes/Vector3Variable.cs

@@ -0,0 +1,38 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[VariableInfo("Other", "Vector3")]
+	public class Vector3Variable : VariableBase<Vector3>
+	{}
+
+	[System.Serializable]
+	public class Vector3Data
+	{
+		[SerializeField]
+		public Vector3Variable vector3Ref;
+		
+		[SerializeField]
+		public Vector3 vector3Val;
+		
+		public Vector3 Value
+		{
+			get { return (vector3Ref == null) ? vector3Val : vector3Ref.value; }
+			set { if (vector3Ref == null) { vector3Val = value; } else { vector3Ref.value = value; } }
+		}
+
+		public string GetDescription()
+		{
+			if (vector3Ref == null)
+			{
+				return vector3Val.ToString();
+			}
+			else
+			{
+				return vector3Ref.key;
+			}
+		}
+	}
+
+}

Assets/Fungus/FungusScript/Scripts/VariableTypes/Vector3Variable.cs.meta

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