Added support for map/layer mask

A custom "Mask" property on a layer or a "foregroundXmask" property on a
map can now be used in combination with the SMSG_MAP_MASK to dynamically
disable certain map layers from the server.

Feature previously seen on ManaPlus and implemented for Mana client for
compatibility.

Also added a ResourceRef class for automating the Resource reference
counting.

Closes #44

1 files changed, 10 insertions, 0 deletions

diff --git a/src/net/tmwa/playerhandler.cpp b/src/net/tmwa/playerhandler.cpp
index 6ef669e4..5c57b8aa 100644
--- a/src/net/tmwa/playerhandler.cpp
+++ b/src/net/tmwa/playerhandler.cpp
@@ -152,6 +152,7 @@ PlayerHandler::PlayerHandler()
         SMSG_PLAYER_STAT_UPDATE_5,
         SMSG_PLAYER_STAT_UPDATE_6,
         SMSG_PLAYER_ARROW_MESSAGE,
+        SMSG_MAP_MASK,
         0
     };
     handledMessages = _messages;
@@ -512,6 +513,15 @@ void PlayerHandler::handleMessage(MessageIn &msg)
                 }
             }
             break;
+
+        case SMSG_MAP_MASK:
+            {
+                const int mask = msg.readInt32();
+                msg.readInt32();  // unused
+                if (Map *map = Game::instance()->getCurrentMap())
+                    map->setMask(mask);
+            }
+            break;
     }
 }