Added playMaker action for BCP 'hello' command

Assets/BCP/Scripts/PlayMaker/GetBCPHello.cs

@@ -0,0 +1,59 @@
+using UnityEngine;
+using System;
+using HutongGames.PlayMaker;
+using TooltipAttribute = HutongGames.PlayMaker.TooltipAttribute;
+
+/// <summary>
+/// Custom PlayMaker action for MPF that sends an Event when an MPF 'hello' command is received.
+/// </summary>
+[ActionCategory("BCP")]
+[Tooltip("Sends an Event when an MPF 'hello' command is received.")]
+public class GetBCPHello : FsmStateAction
+{
+    [UIHint(UIHint.Variable)]
+    [Tooltip("The variable to receive the value of the version from the 'hello' command")]
+    public FsmString version;
+
+    [UIHint(UIHint.Variable)]
+    [Tooltip("The PlayMaker event to send when an MPF 'hello' command is received")]
+    public FsmEvent sendEvent;
+
+    /// <summary>
+    /// Resets this instance to default values.
+    /// </summary>
+    public override void Reset()
+    {
+        version = null;
+        sendEvent = null;
+    }
+
+    /// <summary>
+    /// Called when the state becomes active. Adds the MPF BCP 'hello' event handler.
+    /// </summary>
+    public override void OnEnter()
+    {
+        base.OnEnter();
+        BcpMessageManager.OnHello += Hello;
+    }
+
+    /// <summary>
+    /// Called before leaving the current state. Removes the MPF BCP 'hello' event handler.
+    /// </summary>
+    public override void OnExit()
+    {
+        BcpMessageManager.OnHello -= Hello;
+        base.OnExit();
+    }
+
+    /// <summary>
+    /// Event handler called when receiving a BCP 'hello' command.
+    /// </summary>
+    /// <param name="sender">The sender.</param>
+    /// <param name="e">The <see cref="HelloMessageEventArgs"/> instance containing the event data.</param>
+    public void Hello(object sender, HelloMessageEventArgs e)
+    {
+        version.Value = e.Version;
+        Fsm.Event(sendEvent);
+    }
+
+}