added course prototype, image switch not working yet

Assets/Scripts/Webcam.cs

@@ -0,0 +1,50 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+using UnityEngine.SceneManagement;
+
+public class Webcam : MonoBehaviour
+{
+    int camdex = 0;
+    WebCamTexture tex;
+
+    public RawImage display;
+    public Button nextSignButton;
+
+    void Awake(){
+        WebCamDevice device = WebCamTexture.devices[camdex];
+        tex = new WebCamTexture(device.name);
+        display.texture = tex;
+
+        tex.Play();
+    }
+
+    public void SwapCam(){
+        if(WebCamTexture.devices.Length > 0){
+            // Stop the old camera
+            display.texture = null;
+            tex.Stop();
+            tex = null;
+
+            // Find the new camera
+            camdex += 1;
+            camdex %= WebCamTexture.devices.Length;
+
+            // Start the new camera
+            WebCamDevice device = WebCamTexture.devices[camdex];
+            tex = new WebCamTexture(device.name);
+            display.texture = tex;
+
+            tex.Play();
+        }
+    }
+    // Scene changing is implemented here to avoid problems with webcam
+    public void loadScene(string sceneName) {
+        display.texture = null;
+        tex.Stop();
+        tex = null;
+
+        SceneManager.LoadScene(sceneName);
+    }
+}