Added PanToViewPath() command to smoothly pan along a path

- Added iTween to support camera tweening. It’s in the Fungus namespace
so shouldn’t interfere with any other iTween instance in your game.
- Added an option on Views room to show PanToPath()

Assets/Fungus/Scripts/CameraController.cs

@@ -1,6 +1,7 @@
 using UnityEngine;
 using System;
 using System.Collections;
+using System.Collections.Generic;
 using Fungus;
 
 namespace Fungus
@@ -165,6 +166,56 @@ namespace Fungus
 			}
 		}
 
+		public void PanToPath(View[] viewList, float duration, Action arriveAction)
+		{
+			List<Vector3> pathList = new List<Vector3>();
+
+			// Note: We use the z coord to tween the camera orthographic size
+
+			// Add current camera position as first point in path
+			Vector3 startPos = new Vector3(mainCamera.transform.position.x,
+			                               mainCamera.transform.position.y,
+			                               mainCamera.orthographicSize);
+			pathList.Add(startPos);
+
+			for (int i = 0; i < viewList.Length; ++i)
+			{
+				View view = viewList[i];
+
+				Vector3 viewPos = new Vector3(view.transform.position.x, 
+				                              view.transform.position.y, 
+				                              view.viewSize);
+				pathList.Add(viewPos);
+			}
+
+			StartCoroutine(PanToPathInternal(duration, arriveAction, pathList.ToArray()));
+		}
+
+		IEnumerator PanToPathInternal(float duration, Action arriveAction, Vector3[] path)
+		{
+			float timer = 0;
+
+			while (timer < duration)
+			{
+				timer += Time.deltaTime;
+				timer = Mathf.Min(timer, duration);
+				float percent = timer / duration;
+
+				Vector3 point = iTween.PointOnPath(path, percent);
+
+				mainCamera.transform.position = new Vector3(point.x, point.y, 0);
+				mainCamera.orthographicSize = point.z;
+				SetCameraZ();
+
+				yield return null;
+			}
+
+			if (arriveAction != null)
+			{
+				arriveAction();
+			}
+		}
+
 		void SetCameraZ()
 		{
 			mainCamera.transform.position = new Vector3(mainCamera.transform.position.x, mainCamera.transform.position.y, cameraZ);

Assets/Fungus/Scripts/Commands.cs

@@ -482,6 +482,52 @@ namespace Fungus
 		}		
 	}
 
+	// Pans the camera through a sequence of views over a period of time.
+	public class PanToPathCommand : CommandQueue.Command
+	{
+		View[] views;
+		float duration;
+		
+		public PanToPathCommand(View[] _views,
+		                        	float _duration)
+		{
+			if (_views.Length == 0)
+			{
+				Debug.LogError("View list must not be empty.");
+				return;
+			}
+			
+			views = _views;
+			duration = _duration;
+		}
+		
+		public override void Execute(CommandQueue commandQueue, Action onComplete)
+		{
+			commandQueue.cameraController.PanToPath(views, duration, delegate {
+
+				if (views.Length > 0)
+				{
+					Game game = Game.GetInstance();
+					game.activeView = views[views.Length - 1];
+					
+					// Try to find a page that is a child of the active view.
+					// If there are multiple child pages then it is the client's responsibility 
+					// to set the correct active page in the room script.
+					Page defaultPage = game.activeView.gameObject.GetComponentInChildren<Page>();
+					if (defaultPage)
+					{
+						game.activePage = defaultPage;
+					}
+				}
+				
+				if (onComplete != null)
+				{
+					onComplete();
+				}
+			});
+		}		
+	}
+
 	// Fades the camera to a view over a period of time.
 	public class FadeToViewCommand : CommandQueue.Command
 	{

Assets/Fungus/Scripts/Commands.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: b221bfbeec06a47aab4bce90937db5e8
+guid: c82cac70434cd411b973a4c590386c63
 MonoImporter:
   serializedVersion: 2
   defaultReferences: []

Assets/Fungus/Scripts/Room.cs

@@ -341,12 +341,18 @@ namespace Fungus
 			commandQueue.AddCommand(new SetAnimatorTriggerCommand(animator, triggerName));
 		}
 
-		// Pans the camera to the target view of a period of time
+		// Pans the camera to the target view over a period of time
 		public void PanToView(View targetView, float duration)
 		{
 			commandQueue.AddCommand(new PanToViewCommand(targetView, duration));
 		}
 
+		// Pans the camera through a sequence of target views over a period of time
+		public void PanToPath(float duration, params View[] targetViews)
+		{
+			commandQueue.AddCommand(new PanToPathCommand(targetViews, duration));
+		}
+
 		// Snaps the camera to the target view immediately
 		public void SnapToView(View targetView)
 		{

Assets/Fungus/Scripts/iTween.cs.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 4f492eaa0cef64fe98fb2b58845bbbd5
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 

Assets/FungusExample/Scripts/ViewsRoom.cs

@@ -16,6 +16,7 @@ public class ViewsRoom : Room
 
 		AddOption("Lets look at the logo", LookLogo);
 		AddOption("That's a nice toadstool over there", LookToadstool);
+		AddOption ("Give me the full tour", FullTour);
 		AddOption("Back to menu", MoveToMenu);
 
 		Choose("Wanna move the camera?");
@@ -41,4 +42,12 @@ public class ViewsRoom : Room
 		Say("Hey - let's go look at that logo");
 		Call(LookLogo);
 	}
+
+	void FullTour()
+	{
+		Say("Let's have a look around here");
+		PanToPath(10f, logoView, toadstoolView, mainView);
+		Say("And we're back!");
+		Call(OnEnter);
+	}
 }