extern int GfxRandom[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
extern int GfxRandomStatic[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
extern int GfxElement[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
extern int GfxRandom[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
extern int GfxRandomStatic[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
extern int GfxElement[MAX_LEV_FIELDX][MAX_LEV_FIELDY];