C++ Term_xtra函数代码示例

/*
 * Activate a new Term (and deactivate the current Term)
 *
 * This function is extremely important, and also somewhat bizarre.
 * It is the only function that should "modify" the value of "Term".
 *
 * To "create" a valid "term", one should do "term_init(t)", then
 * set the various flags and hooks, and then do "Term_activate(t)".
 */
errr Term_activate(term *t)
{
	/* Hack -- already done */
	if (Term == t) return (1);

	/* Deactivate the old Term */
	if (Term) Term_xtra(TERM_XTRA_LEVEL, 0);

	/* Hack -- Call the special "init" hook */
	if (t && !t->active_flag)
	{
		/* Call the "init" hook */
		if (t->init_hook) (*t->init_hook)(t);

		/* Remember */
		t->active_flag = TRUE;

		/* Assume mapped */
		t->mapped_flag = TRUE;
	}

	/* Remember the Term */
	Term = t;

	/* Activate the new Term */
	if (Term) Term_xtra(TERM_XTRA_LEVEL, 1);

	/* Success */
	return (0);
}

static void activate_module()
{
	/* Initialize the module table */
	call_lua("assign_current_module", "(s)", "", game_module);

	/* Do misc inits  */
	call_lua("get_module_info", "(s)", "d", "max_plev", &max_plev);
	call_lua("get_module_info", "(s)", "d", "death_dungeon", &DUNGEON_DEATH);

	call_lua("get_module_info", "(s)", "d", "random_artifact_weapon_chance", &RANDART_WEAPON);
	call_lua("get_module_info", "(s)", "d", "random_artifact_armor_chance", &RANDART_ARMOR);
	call_lua("get_module_info", "(s)", "d", "random_artifact_jewelry_chance", &RANDART_JEWEL);

	call_lua("get_module_info", "(s,d)", "d", "version", 1, &VERSION_MAJOR);
	call_lua("get_module_info", "(s,d)", "d", "version", 2, &VERSION_MINOR);
	call_lua("get_module_info", "(s,d)", "d", "version", 3, &VERSION_PATCH);
	version_major = VERSION_MAJOR;
	version_minor = VERSION_MINOR;
	version_patch = VERSION_PATCH;

	/* Change window name if needed */
	if (strcmp(game_module, "ToME"))
	{
		strnfmt(angband_term_name[0], 79, "T-Engine: %s", game_module);
		Term_xtra(TERM_XTRA_RENAME_MAIN_WIN, 0);
	}

	/* Reprocess the player name, just in case */
	process_player_base();
}

bool target_set_closest(int mode)
{
	int y, x, m_idx;
	monster_type *m_ptr;
	char m_name[80];
	bool visibility;
	struct point_set *targets;

	/* Cancel old target */
	target_set_monster(0);

	/* Get ready to do targetting */
	targets = target_set_interactive_prepare(mode);

	/* If nothing was prepared, then return */
	if (point_set_size(targets) < 1)
	{
		msg("No Available Target.");
		point_set_dispose(targets);
		return FALSE;
	}

	/* Find the first monster in the queue */
	y = targets->pts[0].y;
	x = targets->pts[0].x;
	m_idx = cave->m_idx[y][x];
	
	/* Target the monster, if possible */
	if ((m_idx <= 0) || !target_able(m_idx))
	{
		msg("No Available Target.");
		point_set_dispose(targets);
		return FALSE;
	}

	/* Target the monster */
	m_ptr = cave_monster(cave, m_idx);
	monster_desc(m_name, sizeof(m_name), m_ptr, 0x00);
	if (!(mode & TARGET_QUIET))
		msg("%^s is targeted.", m_name);
	Term_fresh();

	/* Set up target information */
	monster_race_track(m_ptr->r_idx);
	health_track(p_ptr, cave->m_idx[y][x]);
	target_set_monster(m_idx);

	/* Visual cue */
	Term_get_cursor(&visibility);
	(void)Term_set_cursor(TRUE);
	move_cursor_relative(y, x);
	Term_redraw_section(x, y, x, y);

	/* TODO: what's an appropriate amount of time to spend highlighting */
	Term_xtra(TERM_XTRA_DELAY, 150);
	(void)Term_set_cursor(visibility);

	point_set_dispose(targets);
	return TRUE;
}

/*
 * Nuke the "curses" system
 */
static void Term_nuke_gcu(term *t)
{
   int x, y;
   term_data *td = (term_data *)(t->data);

   /* Delete this window */
   delwin(td->win);

   /* Count nuke's, handle last */
   if (--active != 0) return;

   /* Hack -- make sure the cursor is visible */
   Term_xtra(TERM_XTRA_SHAPE, 1);

#ifdef A_COLOR
  /* Reset colors to defaults */
  start_color();
#endif

   /* This moves curses to bottom right corner */
   getyx(stdscr, y, x);
   mvcur(y, x, LINES - 1, 0);

   /* Flush the curses buffer */
   (void)refresh();

   /* Exit curses */
   endwin();

   /* Flush the output */
   (void)fflush(stdout);

   /* Normal keymap */
   keymap_norm();
}

/*
 * Helper function called only from "inkey()"
 */
static ui_event inkey_aux(int scan_cutoff)
{
	int w = 0;	

	ui_event ke;
	
	/* Wait for a keypress */
	if (scan_cutoff == SCAN_OFF)
	{
		(void)(Term_inkey(&ke, TRUE, TRUE));
	}
	else
	{
		w = 0;

		/* Wait only as long as macro activation would wait*/
		while (Term_inkey(&ke, FALSE, TRUE) != 0)
		{
			/* Increase "wait" */
			w++;

			/* Excessive delay */
			if (w >= scan_cutoff)
			{
				ui_event empty = EVENT_EMPTY;
				return empty;
			}

			/* Delay */
			Term_xtra(TERM_XTRA_DELAY, 10);
		}
	}

	return (ke);
}

/**
 * Redraw the screen
 *
 * This command performs various low level updates, clears all the "extra"
 * windows, does a total redraw of the main window, and requests all of the
 * interesting updates and redraws that I can think of.
 *
 * This command is also used to "instantiate" the results of the user
 * selecting various things, such as graphics mode, so it must call
 * the "TERM_XTRA_REACT" hook before redrawing the windows.
 *
 */
void do_cmd_redraw(void)
{
	int j;

	term *old = Term;

	/* Low level flush */
	Term_flush();

	/* Reset "inkey()" */
	event_signal(EVENT_INPUT_FLUSH);

	if (character_dungeon)
		verify_panel();

	/* Hack -- React to changes */
	Term_xtra(TERM_XTRA_REACT, 0);

	if (character_dungeon) {
		/* Combine the pack (later) */
		player->upkeep->notice |= (PN_COMBINE);

		/* Update torch, gear */
		player->upkeep->update |= (PU_TORCH | PU_INVEN);

		/* Update stuff */
		player->upkeep->update |= (PU_BONUS | PU_HP | PU_SPELLS);

		/* Fully update the visuals */
		player->upkeep->update |= (PU_FORGET_VIEW | PU_UPDATE_VIEW | PU_MONSTERS);

		/* Redraw everything */
		player->upkeep->redraw |= (PR_BASIC | PR_EXTRA | PR_MAP | PR_INVEN |
								   PR_EQUIP | PR_MESSAGE | PR_MONSTER |
								   PR_OBJECT | PR_MONLIST | PR_ITEMLIST);
	}

	/* Clear screen */
	Term_clear();

	if (character_dungeon) {
		/* Hack -- update */
		handle_stuff(player);

		/* Place the cursor on the player */
		if (0 != character_dungeon)
			move_cursor_relative(player->px, player->py);
	}

	/* Redraw every window */
	for (j = 0; j < ANGBAND_TERM_MAX; j++) {
		if (!angband_term[j]) continue;

		Term_activate(angband_term[j]);
		Term_redraw();
		Term_fresh();
		Term_activate(old);
	}
}

/*
 * Hack -- Make a (relevant?) sound
 */
void sound(int val)
{
	/* No sound */
	if (!use_sound) return;

	/* Make a sound (if allowed) */
	Term_xtra(TERM_XTRA_SOUND, val);
}

/*
 * Check for a pending keypress on the key queue.
 *
 * Store the keypress, if any, in "ch", and return "0".
 * Otherwise store "zero" in "ch", and return "1".
 *
 * Wait for a keypress if "wait" is true.
 *
 * Remove the keypress if "take" is true.
 */
errr Term_inkey(char *ch, bool_ wait, bool_ take)
{
	/* Assume no key */
	(*ch) = '\0';

	/* Process queued UI events */
	Term_xtra(TERM_XTRA_BORED, 0);

	/* Wait */
	if (wait)
	{
		/* Process pending events while necessary */
		while (Term->key_head == Term->key_tail)
		{
			/* Process events (wait for one) */
			Term_xtra(TERM_XTRA_EVENT, TRUE);
		}
	}

	/* Do not Wait */
	else
	{
		/* Process pending events if necessary */
		if (Term->key_head == Term->key_tail)
		{
			/* Process events (do not wait) */
			Term_xtra(TERM_XTRA_EVENT, FALSE);
		}
	}

	/* No keys are ready */
	if (Term->key_head == Term->key_tail) return (1);

	/* Extract the next keypress */
	(*ch) = Term->key_queue[Term->key_tail];

	/* If requested, advance the queue, wrap around if necessary */
	if (take && (++Term->key_tail == Term->key_size)) Term->key_tail = 0;

	/* Success */
	return (0);
}

static void colors_pref_load(const char *title, int row)
{
	/* Ask for and load a user pref file */
	do_cmd_pref_file_hack(8);
	
	/* XXX should probably be a cleaner way to tell UI about
	 * colour changes - how about doing this in the pref file
	 * loading code too? */
	Term_xtra(TERM_XTRA_REACT, 0);
	Term_redraw();
}

/*
 * Suspend/Resume
 */
static errr Term_xtra_gcu_alive(int v)
{
	int x, y;


	/* Suspend */
	if (!v)
	{
		/* Go to normal keymap mode */
		keymap_norm();

		/* Restore modes */
		nocbreak();
		echo();
		nl();

		/* Hack -- make sure the cursor is visible */
		Term_xtra(TERM_XTRA_SHAPE, 1);

		/* Flush the curses buffer */
		(void)refresh();

		/* Get current cursor position */
		getyx(curscr, y, x);

		/* Move the cursor to bottom right corner */
		mvcur(y, x, LINES - 1, 0);

		/* Exit curses */
		endwin();

		/* Flush the output */
		(void)fflush(stdout);
	}

	/* Resume */
	else
	{
		/* Refresh */
		/* (void)touchwin(curscr); */
		/* (void)wrefresh(curscr); */

		/* Restore the settings */
		cbreak();
		noecho();
		nonl();

		/* Go to angband keymap mode */
		keymap_game();
	}

	/* Success */
	return (0);
}

/*
 * Flush and forget the input
 */
errr Term_flush(void)
{
	/* Hack -- Flush all events */
	Term_xtra(TERM_XTRA_FLUSH, 0);

	/* Forget all keypresses */
	Term->key_head = Term->key_tail = 0;

	/* Success */
	return (0);
}

/*
 * Suspend/Resume
 */
static errr Term_xtra_gcu_alive(int v)
{
   /* Suspend */
   if (!v)
   {
      /* Go to normal keymap mode */
      keymap_norm();

      /* Restore modes */
      nocbreak();
      echo();
      nl();

      /* Hack -- make sure the cursor is visible */
      Term_xtra(TERM_XTRA_SHAPE, 1);

      /* Flush the curses buffer */
      (void)refresh();

#ifdef SPECIAL_BSD
      /* this moves curses to bottom right corner */
      mvcur(curscr->cury, curscr->curx, LINES - 1, 0);
#else
      /* this moves curses to bottom right corner */
      mvcur(getcury(curscr), getcurx(curscr), LINES - 1, 0);
#endif

      /* Exit curses */
      endwin();

      /* Flush the output */
      (void)fflush(stdout);
   }

   /* Resume */
   else
   {
      /* Refresh */
      /* (void)touchwin(curscr); */
      /* (void)wrefresh(curscr); */

      /* Restore the settings */
      cbreak();
      noecho();
      nonl();

      /* Go to angband keymap mode */
      keymap_game();
   }

   /* Success */
   return (0);
}

void browse_movie(void)
{
	Term_clear();
	Term_fresh();
	Term_xtra(TERM_XTRA_REACT, 0);

	while (read_movie_file() == 0)
	{
		while (fresh_queue.next != fresh_queue.tail)
		{
			if (!flush_ringbuf_client())
			{
				Term_xtra(TERM_XTRA_FLUSH, 0);

				/* ソケットにデータが来ているかどうか調べる */
#ifdef WINDOWS
				Sleep(WAIT);
#else
				usleep(WAIT);
#endif
			}
		}
	}
}

/*
 * Handle signals -- suspend
 *
 * Actually suspend the game, and then resume cleanly
 */
static void handle_signal_suspend(int sig)
{
	/* Protect errno from library calls in signal handler */
	int save_errno = errno;

	/* Disable handler */
	(void)(*signal_aux)(sig, SIG_IGN);

#ifdef SIGSTOP

	/* Flush output */
	Term_fresh();

	/* Suspend the "Term" */
	Term_xtra(TERM_XTRA_ALIVE, 0);

	/* Suspend ourself */
	(void)kill(0, SIGSTOP);

	/* Resume the "Term" */
	Term_xtra(TERM_XTRA_ALIVE, 1);

	/* Redraw the term */
	Term_redraw();

	/* Flush the term */
	Term_fresh();

#endif

	/* Restore handler */
	(void)(*signal_aux)(sig, handle_signal_suspend);

	/* Restore errno */
	errno = save_errno;
}

/**
 * Redraw a term when it is resized
 */
void redraw_window(void)
{
  /* Only if the dungeon exists */
  if (!character_dungeon) return;
  
  /* Hack - Activate term zero for the redraw */
  Term_activate(&term_screen[0]);
  
  /* Hack -- react to changes */
  Term_xtra(TERM_XTRA_REACT, 0);
  
  /* Hack -- update */
  handle_stuff(p_ptr);
  
  /* Redraw */
  Term_redraw();
  
  /* Refresh */
  Term_fresh();
}