Added Send Message command and Receive Message event handler

Messages are a simple way to notify other sequences to start executing
when something happens.
You can specify if the message should only be sent to the same Fungus
Script, or to all Fungus Scripts in the scene.

Assets/Examples/iTween/iTween.unity

@@ -169,8 +169,8 @@ GameObject:
   - 212: {fileID: 470391091}
   - 114: {fileID: 470391090}
   - 114: {fileID: 470391089}
-  - 114: {fileID: 470391088}
   - 114: {fileID: 470391087}
+  - 114: {fileID: 470391088}
   m_Layer: 0
   m_Name: Mushroom4
   m_TagString: Untagged
@@ -209,10 +209,11 @@ MonoBehaviour:
   m_GameObject: {fileID: 470391086}
   m_Enabled: 1
   m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: d2f6487d21a03404cb21b245f0242e79, type: 3}
+  m_Script: {fileID: 11500000, guid: 2d7d417659cd54a6787f70f763950c34, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
   parentSequence: {fileID: 470391089}
+  message: StartMoving
 --- !u!114 &470391089
 MonoBehaviour:
   m_ObjectHideFlags: 2
@@ -256,8 +257,7 @@ MonoBehaviour:
     width: 1212
     height: 902
   selectedSequence: {fileID: 470391089}
-  selectedCommands:
-  - {fileID: 470391087}
+  selectedCommands: []
   variables: []
   runSlowInEditor: 1
   runSlowDuration: .25
@@ -371,7 +371,9 @@ GameObject:
   - 114: {fileID: 868139012}
   - 114: {fileID: 868139013}
   - 114: {fileID: 868139014}
+  - 114: {fileID: 868139016}
   - 114: {fileID: 868139015}
+  - 114: {fileID: 868139017}
   m_Layer: 0
   m_Name: FungusScript
   m_TagString: Untagged
@@ -421,12 +423,13 @@ MonoBehaviour:
     width: 120
     height: 30
   sequenceName: Test iTween
-  eventHandler: {fileID: 868139015}
+  eventHandler: {fileID: 868139016}
   commandList:
   - {fileID: 868138995}
   - {fileID: 868139011}
   - {fileID: 868139012}
   - {fileID: 868139013}
+  - {fileID: 868139017}
   - {fileID: 868139008}
   - {fileID: 868139009}
   - {fileID: 868139010}
@@ -465,8 +468,9 @@ MonoBehaviour:
     y: -350
     width: 1050
     height: 1284
-  selectedSequence: {fileID: 0}
-  selectedCommands: []
+  selectedSequence: {fileID: 868138992}
+  selectedCommands:
+  - {fileID: 868139017}
   variables: []
   runSlowInEditor: 1
   runSlowDuration: .25
@@ -946,6 +950,21 @@ MonoBehaviour:
   fromPosition: {x: 0, y: 0, z: 0}
   axis: 3
 --- !u!114 &868139015
+MonoBehaviour:
+  m_ObjectHideFlags: 2
+  m_PrefabParentObject: {fileID: 0}
+  m_PrefabInternal: {fileID: 0}
+  m_GameObject: {fileID: 868138990}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: c43743931d28f43f89eced820d907351, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  errorMessage: 
+  indentLevel: 0
+  messageTarget: 0
+  message: 
+--- !u!114 &868139016
 MonoBehaviour:
   m_ObjectHideFlags: 0
   m_PrefabParentObject: {fileID: 0}
@@ -957,6 +976,21 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   parentSequence: {fileID: 868138992}
+--- !u!114 &868139017
+MonoBehaviour:
+  m_ObjectHideFlags: 2
+  m_PrefabParentObject: {fileID: 0}
+  m_PrefabInternal: {fileID: 0}
+  m_GameObject: {fileID: 868138990}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: c43743931d28f43f89eced820d907351, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  errorMessage: 
+  indentLevel: 0
+  messageTarget: 1
+  message: StartMoving
 --- !u!1 &1090256565
 GameObject:
   m_ObjectHideFlags: 0
@@ -1182,7 +1216,7 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 61dddfdc5e0e44ca298d8f46f7f5a915, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  selectedFungusScript: {fileID: 868138993}
+  selectedFungusScript: {fileID: 470391090}
 --- !u!4 &1971204865
 Transform:
   m_ObjectHideFlags: 1

Assets/Fungus/FungusScript/Commands/SendMessage.cs

@@ -0,0 +1,66 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[CommandInfo("Scripting", 
+	             "Send Message", 
+	             "Sends a message to either the owner Fungus Script or all Fungus Scripts in the scene. Sequences can listen for this message to start execution.")]
+	public class SendMessage : Command
+	{
+		public enum MessageTarget
+		{
+			SameScript,
+			AllScripts
+		}
+
+		public MessageTarget messageTarget;
+		public string message;
+
+		public override void OnEnter()
+		{
+			if (message.Length == 0)
+			{
+				Continue();
+			}
+
+			FungusScript fungusScript = GetFungusScript();
+
+			ReceiveMessage[] receivers = null;
+			if (messageTarget == MessageTarget.SameScript)
+			{
+				receivers = fungusScript.GetComponentsInChildren<ReceiveMessage>();
+			}
+			else
+			{
+				receivers = GameObject.FindObjectsOfType<ReceiveMessage>();
+			}
+
+			if (receivers != null)
+			{
+				foreach (ReceiveMessage receiver in receivers)
+				{
+					receiver.OnSendFungusMessage(message);
+				}
+			}
+
+			Continue();
+		}
+
+		public override string GetSummary()
+		{
+			if (message.Length == 0)
+			{
+				return "Error: No message specified";
+			}
+			
+			return message;
+		}
+		
+		public override Color GetButtonColor()
+		{
+			return new Color32(235, 191, 217, 255);
+		}
+	}
+
+}

Assets/Fungus/FungusScript/Commands/SendMessage.cs.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: c43743931d28f43f89eced820d907351
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 

Assets/Fungus/FungusScript/EventHandlers/ReceiveMessage.cs

@@ -0,0 +1,22 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Fungus
+{
+	[EventHandlerInfo("",
+	                  "Receive Message",
+	                  "The sequence will execute when the specified message is received from a SendFungusMessage command.")]
+	public class ReceiveMessage : EventHandler 
+	{
+		public string message;
+
+		public void OnSendFungusMessage(string message)
+		{
+			if (this.message == message)
+			{
+				ExecuteSequence();
+			}
+		}
+	}
+
+}

Assets/Fungus/FungusScript/EventHandlers/ReceiveMessage.cs.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 2d7d417659cd54a6787f70f763950c34
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: