Free Hero Mesh

int encode_move(FILE*fp,MoveItem v) {
  // Encodes a single move and writes the encoded move to the file.
  // Returns the number of bytes of the encoded move.
  if(v>=8 && v<256) {
    fputc(v,fp);
    return 1;
  } else if(v>=0x8000 && v<=0x8FFF) {
    fputc(KEY_XY,fp);
    fputc(((v>>6)&63)+1,fp);
    fputc((v&63)+1,fp);
    return 3;
  } else {
    fatal("Unencodable move (%u)\n",(int)v);
  }
}

int encode_move_list(FILE*fp) {
  // Encodes the current replay list into the file; returns the number of bytes.
  // Does not write a null terminator.
  int i;
  int c=0;
  for(i=0;i<replay_count;i++) c+=encode_move(fp,replay_list[i]);
  return c;
}

MoveItem decode_move(FILE*fp) {
  // Decodes a single move from the file, and returns the move.
  // Returns zero if there is no more moves.
  int v=fgetc(fp);
  if(v>=8 && v<256) {
    return v;
  } else if(v==KEY_XY) {
    v=0x8000|((fgetc(fp)-1)<<6);
    return v|(fgetc(fp)-1);
  } else if(v==EOF || !v) {
    return 0;
  } else {
    fatal("Undecodable move (%u)\n",v);
  }
}

    snprintf(buf,8,"%5d",replay_pos);
    draw_text(8,52,buf,0xF0,0xF9);
    snprintf(buf,8,"%5d",replay_count);
    draw_text(8,screen->h-8,buf,0xF0,solution_replay?0xFA:0xFC);
    for(y=44,x=replay_pos-(screen->h-68)/32;;x++) {
      y+=16;
      if(y+24>screen->h) break;
      if(x>=0 && x<replay_count) {
        if(replay_list[x]<256) {
          draw_key(16,y,replay_list[x],0xF8,0xFB);
        } else if((replay_list[x]&0xF000)==0x8000) {
          sprintf(buf,"%02u",((replay_list[x]>>6)&63)+1);
          draw_text(16,y,buf,0xF8,0x47);
          sprintf(buf,"%02u",(replay_list[x]&63)+1);
          draw_text(16,y+8,buf,0xF8,0x45);
        }
      }
      if(x==replay_count) draw_key(16,y,1,0xF0,0xF8);
      if(x==replay_pos) draw_text(0,y,inserting?"I~":"~~",0xF0,0xFE);
      if(x==replay_mark) draw_text(32,y,"~~",0xF0,0xFD);
    }
    SDL_UnlockSurface(screen);
  }
  if(quiz_text) draw_popup(quiz_text);

  sqlite3_finalize(st);
  if(i==1) begin_level(mo&8?-sel-divmin:~sel);
  return i;
}

static int game_command(int prev,int cmd,int number,int argc,sqlite3_stmt*args,void*aux) {
  switch(cmd) {
    case '\' ': play: // Play a move
      if(replay_time) {
        replay_time=0;
        return -3;
      }
      if(solution_replay) {
        screen_message("You cannot play your own moves during the solution replay");
        return -3;

      do_export_moves(sqlite3_column_text(args,1));
      return 0;
    case 'rs': // Replay speed
      number+=replay_speed;
      if(number<1) number=1; else if(number>255) number=255;
      replay_speed=number;
      return prev;
    case 'xy': // Coordinate input
      if(argc<3 || !has_xy_input) break;
      argc=sqlite3_column_int(args,1);
      number=sqlite3_column_int(args,2);
      if(argc<1 || argc>pfwidth || number<1 || number>pfheight) return 0;
      number=(number-1)|((argc-1)<<6)|0x8000;
      goto play;
    default:
      return prev;
  }
}

static void do_autowin(void) {
  const char*name;

    static SDL_Event ev={SDL_USEREVENT};
    SDL_PushEvent(&ev);
  }
  timerflag=1;
  return n;
}

static inline void input_move(MoveItem k) {
  const char*t=execute_turn(k);
  if(replay_pos>0xFFFE && !gameover) t="Too many moves played";
  if(t) {
    screen_message(t);
    gameover=-1;
    return;
  }