Prevent loading same replay twice

src/rv_main.inc

@@ -71,6 +71,7 @@ public void RV_StartPlayback()
 public void RV_StopPlayback()
 {
     RV_StopPlaybackBots();
+    RV_StopMenuLoadRestriction();
 }
 
 public void RV_ResetPlayback()

src/rv_menu.inc

@@ -97,6 +97,8 @@ public void RV_StartMenus()
     // Download map info immediately.
     // This will call into Net_MapInfoDownloadReceived or Net_MapInfoDownloadFailed in rv_net_callbacks.inc.
     Net_DownloadMapInfo();
+
+    rv_loaded_streams = CreateTrie();
 }
 
 // Called on map end.
@@ -109,6 +111,7 @@ public void RV_StopMenus()
 
     delete rv_zone_list_menu;
     delete rv_main_menu;
+    delete rv_loaded_streams;
 }
 
 public int RV_HandleSelectZoneMenu(Menu menu, MenuAction action, int param1, int param2)
@@ -218,6 +221,10 @@ public int RV_HandleSelectReplayMenu(Menu menu, MenuAction action, int param1, i
             RV_LoadStreamSpawnBot(replay_id);
         }
 
+        // Set so this cannot be loaded again.
+        // This will not allow you to retry to download if it fails, which is bad but we don't really handle that case.
+        SetTrieValue(rv_loaded_streams, replay_id, 1);
+
         DisplayMenu(menu, param1, MENU_TIME_FOREVER);
     }
 
@@ -233,6 +240,21 @@ public int RV_HandleSelectReplayMenu(Menu menu, MenuAction action, int param1, i
     {
     }
 
+    else if (action == MenuAction_DrawItem)
+    {
+        int dummy;
+
+        char replay_id[RV_REPLAY_ID_SIZE];
+        GetMenuItem(menu, param2, replay_id, sizeof(replay_id));
+
+        if (GetTrieValue(rv_loaded_streams, replay_id, dummy))
+        {
+            return ITEMDRAW_DISABLED; // This is already loaded, disable item.
+        }
+
+        return ITEMDRAW_DEFAULT;
+    }
+
     return 0;
 }
 
@@ -250,7 +272,7 @@ public void RV_CreateNewReplayListMenu(int response_handle)
     char menu_title[128];
     Format(menu_title, sizeof(menu_title), "%s (%d replays)", zone_title, num_replays);
 
-    Menu menu = CreateMenu(RV_HandleSelectReplayMenu);
+    Menu menu = CreateMenu(RV_HandleSelectReplayMenu, MENU_ACTIONS_DEFAULT | MenuAction_DrawItem);
     SetMenuTitle(menu, menu_title);
     SetMenuExitBackButton(menu, true);
 
@@ -276,3 +298,8 @@ public void RV_CreateNewReplayListMenu(int response_handle)
 
     DisplayMenu(menu, user_id, MENU_TIME_FOREVER);
 }
+
+public void RV_StopMenuLoadRestriction()
+{
+    ClearTrie(rv_loaded_streams);
+}

src/rv_priv.inc

@@ -110,7 +110,7 @@ char rv_cur_map[128];
 
 // Downloaded replay listings for a zone.
 // These are created on demand and reused, meaning that new requests are not made for existing ones.
-StringMap rv_replay_listings; // Array of RVReplayListing.
+StringMap rv_replay_listings; // Value is RVReplayListing.
 
 // Main menu.
 // This is created once after map start.
@@ -123,3 +123,7 @@ Menu rv_zone_list_menu;
 // Menus for replay selection in a zone.
 // These are created on demand and reused, meaning that new requests are not made for existing ones.
 Menu rv_zone_menus[NET_ZONES_MAX];
+
+// Currently playing streams.
+// Used to guard against duplication during playback in the replay selection menu.
+StringMap rv_loaded_streams; // Value is int.