Free Hero Mesh

  sqlite3_result_int64(cxt,a-(a&0x80000000?0x100000000LL:0));
}

static void fn_trace_on(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  const char*v=sqlite3_user_data(cxt);
  if(main_options['t']=*v) puts("[Tracing enabled]"); else puts("[Tracing disabled]");
}

static void fn_xy(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  if(sqlite3_value_type(argv[0])==SQLITE_NULL || sqlite3_value_type(argv[1])==SQLITE_NULL) return;
  sqlite3_result_int(cxt,sqlite3_value_int(argv[0])+sqlite3_value_int(argv[1])*64);
}

static void fn_zero_extend(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  sqlite3_int64 a;
  if(sqlite3_value_type(*argv)==SQLITE_NULL) return;
  a=sqlite3_value_int64(*argv)&0xFFFFFFFF;
  sqlite3_result_int64(cxt,a);
}

  sqlite3_create_function(userdb,"PICTURE_SIZE",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_picture_size,0,0);
  sqlite3_create_function(userdb,"READ_LUMP_AT",2,SQLITE_UTF8,0,fn_read_lump_at,0,0);
  sqlite3_create_function(userdb,"RESOURCE",-1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_resource,0,0);
  sqlite3_create_function(userdb,"SIGN_EXTEND",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_sign_extend,0,0);
  sqlite3_create_function(userdb,"SOLUTION_CACHEID",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,ptr1,fn_cacheid,0,0);
  sqlite3_create_function(userdb,"TRACE_OFF",0,SQLITE_UTF8,"",fn_trace_on,0,0);
  sqlite3_create_function(userdb,"TRACE_ON",0,SQLITE_UTF8,"\x01",fn_trace_on,0,0);
  sqlite3_create_function(userdb,"XY",2,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_xy,0,0);
  sqlite3_create_function(userdb,"ZERO_EXTEND",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_zero_extend,0,0);
  sqlite3_create_module(userdb,"CLASSES",&vt_classes,"CREATE TABLE `CLASSES`(`ID` INTEGER PRIMARY KEY, `NAME` TEXT, `EDITORHELP` TEXT, `HELP` TEXT,"
   "`INPUT` INT, `QUIZ` INT, `TRACEIN` INT, `TRACEOUT` INT, `GROUP` TEXT, `PLAYER` INT);");
  sqlite3_create_module(userdb,"MESSAGES",&vt_messages,"CREATE TABLE `MESSAGES`(`ID` INTEGER PRIMARY KEY, `NAME` TEXT, `TRACE` INT);");
  sqlite3_create_module(userdb,"OBJECTS",&vt_objects,"CREATE TABLE `OBJECTS`(`ID` INTEGER PRIMARY KEY, `CLASS` INT, `MISC1` INT, `MISC2` INT, `MISC3` INT,"
   "`IMAGE` INT, `DIR` INT, `X` INT, `Y` INT, `UP` INT, `DOWN` INT, `DENSITY` INT HIDDEN);");
}