Free Hero Mesh

FlushClass  ( class -- ) **
  Resets the Arrived, Busy, Departed, Inertia, Moved, and UserSignal flags
  of all objects of the specified class to zero. If the class is -1, then
  all objects are flushed in this way, and during the input phase, it also
  skips the beginning and ending phases if the class is -1.

FlushObj  ( -- ) **
  Resets this object's Arrived, Busy, Departed, Inertia, Moved, UserSignal.

,FlushObj  ( obj -- ) **
  Resets the Arrived, Busy, Departed, Inertia, Moved, and UserSignal flags
  of the specified object only.

From  ( -- obj )
  The object which send the message to this object. In some cases, this

?.?.ctrl.Q: ^Q
?.?.ctrl.S: ^S
?.?.ctrl.T: ^T
?.?.ctrl.Y: ^Y
?.?.shift.ctrl.M: select ':s';
?.?.f10: select ':x';

! Picture editor macros
?.picedit.macro.M: insert into graph(x,y,c) select s-x-1,y,c from graph where x<s/2;

  *cur=sqlite3_malloc(sizeof(Cursor));
  return *cur?SQLITE_OK:SQLITE_NOMEM;
}

static int vt_graph_connect(sqlite3*db,void*aux,int argc,const char*const*argv,sqlite3_vtab**vt,char**ex) {
  *vt=sqlite3_malloc(sizeof(sqlite3_vtab));
  if(!*vt) return SQLITE_NOMEM;
  sqlite3_declare_vtab(db,"CREATE TABLE `GRAPH`(`X` INT, `Y` INT, `C` INT, `S` INT);");
  return SQLITE_OK;
}

static int vt_graph_disconnect(sqlite3_vtab*vt) {
  sqlite3_free(vt);
  return SQLITE_OK;
}

static int vt_graph_filter(sqlite3_vtab_cursor*cc,int n,const char*s,int c,sqlite3_value**v) {
  Cursor*cur=(void*)cc;
  cur->pos=0;
  return SQLITE_OK;
}

static int vt_graph_index(sqlite3_vtab*vt,sqlite3_index_info*inf) {
  return SQLITE_OK;
}

static int vt_graph_column(sqlite3_vtab_cursor*cc,sqlite3_context*cxt,int n) {
  Cursor*cur=(void*)cc;
  switch(n) {
    case 0: sqlite3_result_int(cxt,cur->pos%cur_pic->size); break;
    case 1: sqlite3_result_int(cxt,cur->pos/cur_pic->size); break;
    case 2: sqlite3_result_int(cxt,cur_pic->data[cur->pos+cur_pic->size]); break;
    case 3: sqlite3_result_int(cxt,cur_pic->size); break;
  }
  return SQLITE_OK;
}

static int vt_graph_next(sqlite3_vtab_cursor*cc) {
  Cursor*cur=(void*)cc;
  cur->pos++;
  return SQLITE_OK;
}

static int vt_graph_rowid(sqlite3_vtab_cursor*cc,sqlite3_int64*p) {
  Cursor*cur=(void*)cc;
  *p=cur->pos;
  return SQLITE_OK;
}

static int vt_graph_update(sqlite3_vtab*vt,int argc,sqlite3_value**argv,sqlite3_int64*rowid) {
  int x,y;
  if(argc!=6) return SQLITE_CONSTRAINT_VTAB;
  if(sqlite3_value_type(argv[0])==SQLITE_NULL) {
    x=sqlite3_value_int(argv[2]);
    y=sqlite3_value_int(argv[3]);
    if(x<0 || x>=cur_pic->size || y<0 || y>=cur_pic->size) return SQLITE_CONSTRAINT_VTAB;
    x+=y*cur_pic->size;
  } else {
    x=sqlite3_value_int(argv[0]);

F12
  Enter a SQL statement to edit the current picture. This should be a
  UPDATE statement which updates the column called "C" of the table called
  "GRAPH". It has columns "X" and "Y" which are the coordinates of the
  pixel, and "C" which is the colour of the pixel. It may also be a SELECT
  statement in order to query it, and the response is then displayed
  (which must be a single row and single column only). This table also has
  a column "S" which is the same for all rows, and is the size of the
  picture, which can be used in macros (see config.doc).

` or =
  Exchange the current picture with the spare page. (The spare page is not
  stored in the puzzle set; it is lost when Free Hero Mesh is terminated.)

Click in the colour palette on the right to select a colour. With the left
button, that colour is selected as the current colour. The middle button