GBM

GBM, or the Glest Binary Map format, is the standard type of map. GBM is limited to 4 players, but can be used on any of Glest's engines, including MegaGlest and the Glest Advanced Engine. Maps in the GBM format are created in the Map Editor.

Header Structure

In GAE:

struct MapFileHeader{
   int32 version;
   int32 maxPlayers;
   int32 width;
   int32 height;
   int32 altFactor;
   int32 waterLevel;
   int8 title[128];
   int8 author[128];
   int8 description[256];
};

Or in MegaGlest, which supports cliffs:

struct MapFileHeader {
   int32 version;
   int32 maxPlayers;
   int32 width;
   int32 height;
   int32 altFactor;
   int32 waterLevel;
   int8 title[128];
   int8 author[128];
   union {
      int8 description[256];
      struct {
         int8 short_desc[128];
         int32 magic; // 0x01020304 for meta
         int8 meta[124];
      };
   };
};

See Also

• Maps
• Map Editing
• List of Maps

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