add map mask and script functions for manipulate with it.

New script functions:
    setmapmask    - set new map mask.
    addmapmask    - add new map mask to current mask.
    removemapmask - remove new mask from current mask.
    getmapmask    - return current map mask.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/map/mapdext.h b/src/map/mapdext.h
index 77d56f9..0c3c03a 100644
--- a/src/map/mapdext.h
+++ b/src/map/mapdext.h
@@ -6,6 +6,7 @@
 
 struct MapdExt
 {
+    unsigned int mask;
     bool invisible;
 };