// functions for selecting single/multiplayer pilots at the very beginning of FreeSpace
void player_select_init()
{
	int i;
	barracks_buttons *b;
	UI_WINDOW *w;

	// start a looping ambient sound
	main_hall_start_ambient();

	Player_select_force_main_hall = "";

	Player_select_screen_active = 1;

	// create the UI window
	Player_select_window.create(0, 0, gr_screen.max_w_unscaled, gr_screen.max_h_unscaled, 0);
	Player_select_window.set_mask_bmap(Player_select_background_mask_bitmap[gr_screen.res]);
	
	// initialize the control buttons
	for (i=0; i<NUM_PLAYER_SELECT_BUTTONS; i++) {
		b = &Player_select_buttons[gr_screen.res][i];

		// create the button
		b->button.create(&Player_select_window, NULL, b->x, b->y, 60, 30, 1, 1);

		// set its highlight action
		b->button.set_highlight_action(common_play_highlight_sound);

		// set its animation bitmaps
		b->button.set_bmaps(b->filename);

		// link the mask hotspot
		b->button.link_hotspot(b->hotspot);
	}

	// add some text
	w = &Player_select_window;
	w->add_XSTR("Create", 1034, Player_select_buttons[gr_screen.res][CREATE_PILOT_BUTTON].xt, Player_select_buttons[gr_screen.res][CREATE_PILOT_BUTTON].yt, &Player_select_buttons[gr_screen.res][CREATE_PILOT_BUTTON].button, UI_XSTR_COLOR_GREEN);	
	w->add_XSTR("Clone", 1040, Player_select_buttons[gr_screen.res][CLONE_BUTTON].xt, Player_select_buttons[gr_screen.res][CLONE_BUTTON].yt, &Player_select_buttons[gr_screen.res][CLONE_BUTTON].button, UI_XSTR_COLOR_GREEN);	
	w->add_XSTR("Remove", 1038, Player_select_buttons[gr_screen.res][DELETE_BUTTON].xt, Player_select_buttons[gr_screen.res][DELETE_BUTTON].yt, &Player_select_buttons[gr_screen.res][DELETE_BUTTON].button, UI_XSTR_COLOR_GREEN);	

	w->add_XSTR("Select", 1039, Player_select_buttons[gr_screen.res][ACCEPT_BUTTON].xt, Player_select_buttons[gr_screen.res][ACCEPT_BUTTON].yt, &Player_select_buttons[gr_screen.res][ACCEPT_BUTTON].button, UI_XSTR_COLOR_PINK);	
	w->add_XSTR("Single", 1041, Player_select_buttons[gr_screen.res][SINGLE_BUTTON].xt, Player_select_buttons[gr_screen.res][SINGLE_BUTTON].yt, &Player_select_buttons[gr_screen.res][SINGLE_BUTTON].button, UI_XSTR_COLOR_GREEN);	
	w->add_XSTR("Multi", 1042, Player_select_buttons[gr_screen.res][MULTI_BUTTON].xt, Player_select_buttons[gr_screen.res][MULTI_BUTTON].yt, &Player_select_buttons[gr_screen.res][MULTI_BUTTON].button, UI_XSTR_COLOR_GREEN);	
	for(i=0; i<PLAYER_SELECT_NUM_TEXT; i++) {
		w->add_XSTR(&Player_select_text[gr_screen.res][i]);
	}


	// create the list button text select region
	Player_select_list_region.create(&Player_select_window, "", Choose_list_coords[gr_screen.res][0], Choose_list_coords[gr_screen.res][1], Choose_list_coords[gr_screen.res][2], Choose_list_coords[gr_screen.res][3], 0, 1);
	Player_select_list_region.hide();

	// create the pilot callsign input box
	Player_select_input_box.create(&Player_select_window, Choose_list_coords[gr_screen.res][0], Choose_list_coords[gr_screen.res][1], Choose_list_coords[gr_screen.res][2] , CALLSIGN_LEN - 1, "", UI_INPUTBOX_FLAG_INVIS | UI_INPUTBOX_FLAG_KEYTHRU | UI_INPUTBOX_FLAG_LETTER_FIRST);
	Player_select_input_box.set_valid_chars(VALID_PILOT_CHARS);
	Player_select_input_box.hide();
	Player_select_input_box.disable();

	// not currently entering any text
	Player_select_input_mode = 0;

	// set up hotkeys for buttons so we draw the correct animation frame when a key is pressed
	Player_select_buttons[gr_screen.res][SCROLL_LIST_UP_BUTTON].button.set_hotkey(KEY_UP);
	Player_select_buttons[gr_screen.res][SCROLL_LIST_DOWN_BUTTON].button.set_hotkey(KEY_DOWN);
	Player_select_buttons[gr_screen.res][ACCEPT_BUTTON].button.set_hotkey(KEY_ENTER);
	Player_select_buttons[gr_screen.res][CREATE_PILOT_BUTTON].button.set_hotkey(KEY_C);

	// attempt to load in the background bitmap
	Player_select_background_bitmap = bm_load(Player_select_background_bitmap_name[gr_screen.res]);
	Assert(Player_select_background_bitmap >= 0);

	// load in the palette for the screen
	// Player_select_palette = bm_load(PLAYER_SELECT_PALETTE);
	// Player_select_palette_set = 0;

	// unset the very first pilot data
	Player_select_very_first_pilot = 0;
	Player_select_initial_count = -1;
	memset(Player_select_very_first_pilot_callsign, 0, CALLSIGN_LEN + 2);

//	if(Player_select_num_pilots == 0){
//		Player_select_autoaccept = 1;
//	}

// if we found a pilot
	if ( player_select_get_last_pilot_info() ) {
		if (Player_select_last_is_multi && !Networking_disabled) {
			player_select_init_player_stuff(PLAYER_SELECT_MODE_MULTI);
		} else {
			player_select_init_player_stuff(PLAYER_SELECT_MODE_SINGLE);
		}
	} else { // otherwise go to the single player mode by default
		player_select_init_player_stuff(PLAYER_SELECT_MODE_SINGLE);
	}

	if ( (Player_select_num_pilots == 1) && Player_select_input_mode ) {
		Player_select_autoaccept = 1;
	}
}

// -----------------------------------------------------------------------------
void barracks_init()
{
	//Set these to null, 'cause they aren't allocated yet.
	Stat_labels = NULL;
	Stats = NULL;

	UI_WINDOW *w = &Ui_window;

	// save current pilot file, so we don't possibly loose it.
	Pilot.save_player();

	// create interface
	Ui_window.create(0, 0, gr_screen.max_w_unscaled, gr_screen.max_h_unscaled, 0);
	Ui_window.set_mask_bmap(Barracks_bitmap_mask_fname[gr_screen.res]);

	// load background bitmap
	Background_bitmap = bm_load(Barracks_bitmap_fname[gr_screen.res]);
	if(Background_bitmap < 0){
		// we failed to load the bitmap - this is very bad
		Int3();
	}

	// create buttons
	int i;
	for (i=0; i<BARRACKS_NUM_BUTTONS; i++) {
		// create the object
		Buttons[gr_screen.res][i].button.create(&Ui_window, "", Buttons[gr_screen.res][i].x, Buttons[gr_screen.res][i].y, 60, 30, Buttons[gr_screen.res][i].repeat, 1);

		// set the sound to play when highlighted
		Buttons[gr_screen.res][i].button.set_highlight_action(common_play_highlight_sound);

		// set the ani for the button
		Buttons[gr_screen.res][i].button.set_bmaps(Buttons[gr_screen.res][i].filename);

		// set the hotspot
		Buttons[gr_screen.res][i].button.link_hotspot(Buttons[gr_screen.res][i].hotspot);
	}

	// add all strings	
	w->add_XSTR("Create", 1034, Buttons[gr_screen.res][0].text_x,  Buttons[gr_screen.res][0].text_y, &Buttons[gr_screen.res][0].button, UI_XSTR_COLOR_GREEN);
	w->add_XSTR("Accept", 1035, Buttons[gr_screen.res][5].text_x,  Buttons[gr_screen.res][5].text_y, &Buttons[gr_screen.res][5].button, UI_XSTR_COLOR_PINK);
	w->add_XSTR("Help",   928, Buttons[gr_screen.res][6].text_x,  Buttons[gr_screen.res][6].text_y, &Buttons[gr_screen.res][6].button, UI_XSTR_COLOR_GREEN);
	w->add_XSTR("Options",1036, Buttons[gr_screen.res][7].text_x,  Buttons[gr_screen.res][7].text_y, &Buttons[gr_screen.res][7].button, UI_XSTR_COLOR_GREEN);
	w->add_XSTR("Medals", 1037, Buttons[gr_screen.res][8].text_x,  Buttons[gr_screen.res][8].text_y, &Buttons[gr_screen.res][8].button, UI_XSTR_COLOR_GREEN);
	w->add_XSTR("Remove", 1038, Buttons[gr_screen.res][11].text_x,  Buttons[gr_screen.res][11].text_y, &Buttons[gr_screen.res][11].button, UI_XSTR_COLOR_GREEN);
	w->add_XSTR("Select", 1552, Buttons[gr_screen.res][12].text_x,  Buttons[gr_screen.res][12].text_y, &Buttons[gr_screen.res][12].button, UI_XSTR_COLOR_GREEN);
	w->add_XSTR("Clone",  1040, Buttons[gr_screen.res][13].text_x,  Buttons[gr_screen.res][13].text_y, &Buttons[gr_screen.res][13].button, UI_XSTR_COLOR_GREEN);
	w->add_XSTR("Single", 1041, Buttons[gr_screen.res][14].text_x,  Buttons[gr_screen.res][14].text_y,  &Buttons[gr_screen.res][14].button, UI_XSTR_COLOR_GREEN);
	w->add_XSTR("Multi",  1042, Buttons[gr_screen.res][15].text_x,  Buttons[gr_screen.res][15].text_y,  &Buttons[gr_screen.res][15].button, UI_XSTR_COLOR_GREEN);
//	w->add_XSTR("Convert",1043, Buttons[gr_screen.res][16].text_x,  Buttons[gr_screen.res][16].text_y, &Buttons[gr_screen.res][16].button, UI_XSTR_COLOR_GREEN);	
	for(i=0; i<BARRACKS_NUM_TEXT; i++) {
		w->add_XSTR(&Barracks_text[gr_screen.res][i]);
	}

	// button for selecting pilot
	List_region.create(&Ui_window, "", Barracks_list_coords[gr_screen.res][BARRACKS_X_COORD], Barracks_list_coords[gr_screen.res][BARRACKS_Y_COORD], Barracks_list_coords[gr_screen.res][BARRACKS_W_COORD], Barracks_list_coords[gr_screen.res][BARRACKS_H_COORD], 0, 1);
	List_region.hide();

	// create input box (for new pilot)
	Inputbox.create(&Ui_window, Barracks_list_coords[gr_screen.res][BARRACKS_X_COORD], Barracks_list_coords[gr_screen.res][BARRACKS_Y_COORD], Barracks_list_coords[gr_screen.res][BARRACKS_W_COORD], CALLSIGN_LEN - 1, "", UI_INPUTBOX_FLAG_INVIS | UI_INPUTBOX_FLAG_KEYTHRU | UI_INPUTBOX_FLAG_LETTER_FIRST);
	Inputbox.set_valid_chars(VALID_PILOT_CHARS);
	Inputbox.disable();
	Inputbox.hide();

	// load in help overlay bitmap	
	Barracks_overlay_id = help_overlay_get_index(BARRACKS_OVERLAY);
	help_overlay_set_state(Barracks_overlay_id,gr_screen.res,0);

	// other init stuff
	Barracks_callsign_enter_mode = 0;	
	List_scroll_offset = Stats_scroll_offset = Pic_number = Pic_squad_number = Selected_line = 0;
	Cur_pilot = &Players[Player_num];

	// disable squad logo selection buttons in single player
	if(!(Cur_pilot->flags & PLAYER_FLAGS_IS_MULTI)){
		// squad logo picture buttons		
		Buttons[gr_screen.res][B_SQUAD_PREV_BUTTON].button.hide();
		Buttons[gr_screen.res][B_SQUAD_PREV_BUTTON].button.disable();
		Buttons[gr_screen.res][B_SQUAD_NEXT_BUTTON].button.hide();
		Buttons[gr_screen.res][B_SQUAD_NEXT_BUTTON].button.disable();
	} else {
		// squad logo picture buttons		
		Buttons[gr_screen.res][B_SQUAD_PREV_BUTTON].button.enable();
		Buttons[gr_screen.res][B_SQUAD_PREV_BUTTON].button.unhide();
		Buttons[gr_screen.res][B_SQUAD_NEXT_BUTTON].button.enable();
		Buttons[gr_screen.res][B_SQUAD_NEXT_BUTTON].button.unhide();		
	}

	// set up hotkeys for buttons so we draw the correct animation frame when a key is pressed
	barracks_set_hotkeys(1);

	// load ramp pips
	Rank_pips_bitmaps = bm_load_animation("IconRankMini.ani", &Rank_pips_count);	

	// load up the pilot pic list
	pilot_load_pic_list();	
	pilot_load_squad_pic_list();
	
	// don't load pilot images yet
//.........这里部分代码省略.........

// render the chatbox for this frame
void chatbox_render()
{
	if (!Chatbox_created){
		return;
	}

	// clear the multiplayer chat window
	// gr_set_clip(Chatbox_x1, Chatbox_y1, Chatbox_w, Chatbox_h, GR_RESIZE_MENU);
	// gr_clear();
	// gr_reset_clip();

	// draw the background bitmap if we're supposed to
	if ( (Chatbox_bitmap != -1) && (Chatbox_mode_flags & CHATBOX_FLAG_DRAW_BOX)) {
		gr_set_bitmap( Chatbox_bitmap );
		gr_bitmap(Chatbox_x1, Chatbox_y1, GR_RESIZE_MENU);		
	}

	// render the chat lines
	chatbox_render_chat_lines();

	// render any UI window stuff
	Chat_window.draw();
}

// Called once when the red alert interface is exited
void red_alert_close()
{
	if (Red_alert_inited) {

		red_alert_voice_stop();
		red_alert_voice_unload();

		weapon_select_close_team();

		if (Background_bitmap >= 0) {
			bm_release(Background_bitmap);
		}
		
		Ui_window.destroy();
		// bm_unload(&Flash_anim);
		common_free_interface_palette();		// restore game palette
		game_flush();
	}

	Red_alert_inited = 0;

	fsspeech_stop();
}

// debug pause init
void pause_debug_init()
{
	Pause_win.create( 100,100,400,300, WIN_DIALOG );

	Pause_physics.create( &Pause_win, NOX("Physics Pause <P>"), 200, 150, physics_paused );
	Pause_ai.create( &Pause_win, NOX("AI Pause <A>"), 200, 175, ai_paused );
	#ifndef NDEBUG
	Pause_ai_render.create( &Pause_win, NOX("AI Render Stuff <R>"), 200, 200, Ai_render_debug_flag);
	#endif
	Pause_firing.create( &Pause_win, NOX("AI firing <F>"), 200, 225, Ai_firing_enabled);
	Pause_external_view_mode_check.create( &Pause_win, NOX("External View <E>"), 200, 250, Pause_external_view_mode);
	Pause_single_step.create( &Pause_win, NOX("Single Step <S>"), 200, 290, game_single_step );
	Pause_continue.create( &Pause_win, NOX("Leave Pause"), 200, 350, 200, 40 );

	Pause_single_step.set_hotkey( KEY_S );
	Pause_physics.set_hotkey( KEY_P );
	Pause_ai.set_hotkey( KEY_A );
	Pause_ai_render.set_hotkey( KEY_R );
	Pause_firing.set_hotkey( KEY_F );
	Pause_external_view_mode_check.set_hotkey( KEY_E );
	Pause_continue.set_hotkey( KEY_ESC );

	Pause_continue.set_focus();
}

// -----------------------------------------------------------------------------
void barracks_close()
{
	// destroy window
	Ui_window.destroy();

	// release background bitmap
	if (Background_bitmap >= 0) {
		bm_release(Background_bitmap);
	}	

	// release rank pip bitmaps
	bm_release(Rank_pips_bitmaps);	

	// release pilot pic bitmaps
	for (int i=0; i<Num_pilot_images; i++) {
		if (Pilot_images[i] >= 0) {
			bm_release(Pilot_images[i]);
		}
	}

	// unload the overlay bitmap
	help_overlay_unload(BARRACKS_OVERLAY);

	if(Stat_labels != NULL)
	{
		delete[] Stat_labels;
		Stat_labels = NULL;
	}
	if(Stats != NULL)
	{
		delete[] Stats;
		Stats = NULL;
	}

	game_flush();
}

void player_select_do()
{
	int k;

	// Goober5000 - display a popup warning about problems in the mod
	if ((Global_warning_count > 10 || Global_error_count > 0) && !Startup_warning_dialog_displayed) {
		char text[512];
		sprintf(text, "Warning!\n\nThe currently active mod has generated %d warnings and/or errors during program startup.  These could have been caused by anything from incorrectly formated table files to corrupt models.  While FreeSpace Open will attempt to compensate for these issues, it cannot guarantee a trouble-free gameplay experience.  Source Code Project staff cannot provide assistance or support for these problems, as they are caused by the mod's data files, not FreeSpace Open's source code.", Global_warning_count + Global_error_count);
		popup(PF_TITLE_BIG | PF_TITLE_RED | PF_USE_AFFIRMATIVE_ICON, 1, POPUP_OK, text);
		Startup_warning_dialog_displayed = true;
	}
		
	// set the input box at the "virtual" line 0 to be active so the player can enter a callsign
	if (Player_select_input_mode) {
		Player_select_input_box.set_focus();
	}

	// process any ui window stuff
	k = Player_select_window.process();

	if (k) {
		extern void game_process_cheats(int k);
		game_process_cheats(k);
	}

	switch (k) {
		// switch between single and multiplayer modes
		case KEY_TAB: {
			if (Player_select_input_mode) {
				gamesnd_play_iface(SND_GENERAL_FAIL);
				break;
			}

			// play a little sound
			gamesnd_play_iface(SND_USER_SELECT);

			if (Player_select_mode == PLAYER_SELECT_MODE_MULTI) {
				player_select_set_bottom_text(XSTR( "Single-Player Mode", 376));

				// reinitialize as single player mode
				player_select_init_player_stuff(PLAYER_SELECT_MODE_SINGLE);
			} else if (Player_select_mode == PLAYER_SELECT_MODE_SINGLE) {
				player_select_set_bottom_text(XSTR( "Multiplayer Mode", 377));

				// reinitialize as multiplayer mode
				player_select_init_player_stuff(PLAYER_SELECT_MODE_MULTI);
			}

			break;
		}

		case KEY_ESC: {
			// we can hit ESC to get out of text input mode, and we don't want
			// to set this var in that case since it will crash on a NULL Player
			// ptr when going to the mainhall
			if ( !Player_select_input_mode ) {
				Player_select_no_save_pilot = 1;
			}

			break;
		}
	}

	// draw the player select pseudo-dialog over it
	GR_MAYBE_CLEAR_RES(Player_select_background_bitmap);
	gr_set_bitmap(Player_select_background_bitmap);
	gr_bitmap(0,0,GR_RESIZE_MENU);

	// press the accept button
	if (Player_select_autoaccept) {
		Player_select_buttons[gr_screen.res][ACCEPT_BUTTON].button.press_button();
	}
	
	// draw any ui window stuf
	Player_select_window.draw();

	// light up the correct mode button (single or multi)
	if (Player_select_mode == PLAYER_SELECT_MODE_SINGLE) {
		Player_select_buttons[gr_screen.res][SINGLE_BUTTON].button.draw_forced(2);
	} else {
		Player_select_buttons[gr_screen.res][MULTI_BUTTON].button.draw_forced(2);
	}

	// draw the pilot list text
	player_select_draw_list();

	// draw copyright message on the bottom on the screen
	player_select_display_copyright();

	if (!Player_select_input_mode) {
		player_select_process_noninput(k);
	} else {
		player_select_process_input(k);
	}
	
	// draw any pending messages on the bottom or middle of the screen
	player_select_display_all_text();

	gr_flip();
}

void mht_do()
{	
	int k = Mht_window.process();

	// need to ensure ambient is playing, since it may be stopped by a playing movie
	main_hall_start_ambient();

	// process any keypresses
	switch(k){
	case KEY_ESC :		
		mht_exit_game();
		break;

	case KEY_B:
		gameseq_post_event( GS_EVENT_BARRACKS_MENU );
		break;	

	case KEY_G:
		if(Player->flags & PLAYER_FLAGS_IS_MULTI){
			break;
		}

		if (Num_recent_missions > 0)	{
			strcpy_s( Game_current_mission_filename, Recent_missions[0] );
		} else {
			mission_load_up_campaign();
			strcpy_s( Game_current_mission_filename, Campaign.missions[0].name );
		}

		Campaign.current_mission = -1;
		gameseq_post_event(GS_EVENT_START_GAME_QUICK);
		break;

	case KEY_L:
		gameseq_post_event( GS_EVENT_LOAD_MISSION_MENU );
		break;

	case KEY_F2:
		gameseq_post_event(GS_EVENT_OPTIONS_MENU);
		break;

	case KEY_M:
		if (Player->flags & PLAYER_FLAGS_IS_MULTI){
			main_hall_do_multi_ready();
		}
		break;
	}	

	// process button presses
	mht_check_buttons();

	// draw the background, etc
	gr_reset_clip();
	GR_MAYBE_CLEAR_RES(Mht_bitmap);
	if(Mht_bitmap != -1){		
		gr_set_bitmap(Mht_bitmap);
		gr_bitmap(0,0,GR_RESIZE_MENU);
	}
	Mht_window.draw();	
	
	// flip the buffer
	gr_flip();	
}

// -----------------------------------------------------------------------------
void barracks_do_frame(float frametime)
{
	int k = Ui_window.process();

	if ( k > 0 ) {
		if ( help_overlay_active(Barracks_overlay_id) ) {
			help_overlay_set_state(Barracks_overlay_id,gr_screen.res,0);
			k = 0;
		}
	}

	// pilot that mouse is over
	int prospective_pilot = -1;
	int i;

	// Entering pilot callsign
	if (Barracks_callsign_enter_mode) {
		// set focus to inputbox
		Inputbox.set_focus();

		switch (k) {
			case KEY_ESC:
				// cancel create pilot
				Num_pilots--;
				for (i=0; i<Num_pilots; i++) {
					strcpy(Pilots[i], Pilots[i + 1]);
					Pilot_ranks[i] = Pilot_ranks[i + 1];
				}

				barracks_set_callsign_enter_mode(false);
				break;

			case KEY_ENTER: 
				barracks_accept_new_pilot_callsign();
				break;
		} 
	} else {
		// not entering pilot callsign
		switch (k) {
			case KEY_ENTER:
				if (barracks_new_pilot_selected()) {
					gamesnd_play_iface(SND_GENERAL_FAIL);
				} else {
					gamesnd_play_iface(SND_USER_SELECT);
				}
				break;

			case KEY_ESC:  // cancel
				if (!help_overlay_active(Barracks_overlay_id)) {
					if (Num_pilots && !barracks_pilot_accepted()) {
						gameseq_post_event(GS_EVENT_MAIN_MENU);
					} else {
						gamesnd_play_iface(SND_GENERAL_FAIL);
					}
				} else {
					// kill the overlay
					help_overlay_set_state(Barracks_overlay_id,gr_screen.res,0);
				}
				break;

			case KEY_TAB:  // switch mode (simgle/multi)
				if ( Networking_disabled ) {
					game_feature_disabled_popup();
					break;
				}

				if (Player_sel_mode == PLAYER_SELECT_MODE_SINGLE) {
					Cur_pilot->flags |= PLAYER_FLAGS_IS_MULTI;
					Pilot.save_player(Cur_pilot);
					barracks_init_player_stuff(PLAYER_SELECT_MODE_MULTI);
				} else {
					// make sure we don't carry over the multi flag
					Cur_pilot->flags &= ~PLAYER_FLAGS_IS_MULTI;
					Pilot.save_player(Cur_pilot);
					barracks_init_player_stuff(PLAYER_SELECT_MODE_SINGLE);
				}

				gamesnd_play_iface(SND_USER_SELECT);
				break;

			case KEY_F1:  // show help overlay
				gamesnd_play_iface(SND_HELP_PRESSED);
				break;

			case KEY_F2:  // goto options screen
				gamesnd_play_iface(SND_SWITCH_SCREENS);
				gameseq_post_event(GS_EVENT_OPTIONS_MENU);
				break;
		}	// end switch

		// process buttons
		for (i=0; i<BARRACKS_NUM_BUTTONS; i++) {
			if (Buttons[gr_screen.res][i].button.pressed()) {
				barracks_button_pressed(i);
			}
		}

		// if mouse is over a pilot, find index into Pilots array
		if (List_region.is_mouse_on()) {
//.........这里部分代码省略.........

// debug pause close
void pause_debug_close()
{
	last_single_step = 0;	// Make so single step waits a frame before stepping
	Pause_win.destroy();
	game_flush();
}

void techroom_do_frame(float frametime)
{
	
	int i, k;	

	// turn off controls when overlay is on
	if ( help_overlay_active(Techroom_overlay_id) ) {
		Buttons[gr_screen.res][HELP_BUTTON].button.reset_status();
		Ui_window.set_ignore_gadgets(1);
	}

	// turn off controls in trackball mode
	if (Trackball_active) {
		Ui_window.set_ignore_gadgets(1);
	} else {
		Ui_window.set_ignore_gadgets(0);
	}

	k = Ui_window.process() & ~KEY_DEBUGGED;

	if ( (k > 0) || B1_JUST_RELEASED ) {
		if ( help_overlay_active(Techroom_overlay_id) ) {
			help_overlay_set_state(Techroom_overlay_id, gr_screen.res, 0);
			Ui_window.set_ignore_gadgets(0);
			k = 0;
		}
	}

	if ( !help_overlay_active(Techroom_overlay_id) ) {
		Ui_window.set_ignore_gadgets(0);
	}

	switch (k) {
		case KEY_SHIFTED | KEY_TAB:  // activate previous tab
			i = Tab - 1;
			if (i < 0) {
				i = NUM_TABS - 1;
			}

			techroom_change_tab(i);
			break;

		case KEY_TAB:  // activate next tab
			i = Tab + 1;
			if (i >= NUM_TABS) {
				i = 0;
			}

			techroom_change_tab(i);
			break;

		case KEY_CTRLED | KEY_DOWN:
			if ( !(Player->flags & PLAYER_FLAGS_IS_MULTI) ) {
				techroom_button_pressed(SIMULATOR_TAB);
				break;
			}
			// fall through

		case KEY_CTRLED | KEY_UP:
			techroom_button_pressed(CREDITS_TAB);
			break;

		case KEY_CTRLED | KEY_ENTER:
		case KEY_ESC:
			gameseq_post_event(GS_EVENT_MAIN_MENU);
			break;

		case KEY_CTRLED | KEY_SHIFTED | KEY_S:
			Techroom_show_all = 1;
			techroom_lists_reset();
			techroom_change_tab(Tab);
			break;

	}	

	// check ship model window for activity
	if (View_window.pressed()) {
		Trackball_active = 1;
		Trackball_mode = 1;
	}
	if (B1_RELEASED) {
		Trackball_active = 0;
	}

	// check all da buttons
	for (i=0; i<NUM_BUTTONS; i++) {
		if (Buttons[gr_screen.res][i].button.pressed()) {
			if (techroom_button_pressed(i)) {
				return;
			}
		}
	}

	// check for mouseovers/clicks on the selection list
	Select_tease_line = -1;
	for (i=0; i<LIST_BUTTONS_MAX; i++) {
		if (List_buttons[i].is_mouse_on()) {
			Select_tease_line = i + List_offset;
		}
	
//.........这里部分代码省略.........

void credits_do_frame(float frametime)
{
	GR_DEBUG_SCOPE("Credits do frame");

	int i, k, next, percent, bm1, bm2;
	int bx1, by1, bw1, bh1;
	int bx2, by2, bw2, bh2;

	// Use this id to trigger the start of music playing on the credits screen
	if ( timestamp_elapsed(Credits_music_begin_timestamp) ) {
		Credits_music_begin_timestamp = 0;
		credits_start_music();
	}

	k = Ui_window.process();
	switch (k) {
	case KEY_ESC:
		gameseq_post_event(GS_EVENT_MAIN_MENU);
		key_flush();
		break;

	case KEY_CTRLED | KEY_UP:
	case KEY_SHIFTED | KEY_TAB:
		if ( !(Player->flags & PLAYER_FLAGS_IS_MULTI) ) {
			credits_screen_button_pressed(CUTSCENES_BUTTON);
			break;
		}
		// else, react like tab key.

	case KEY_CTRLED | KEY_DOWN:
	case KEY_TAB:
		credits_screen_button_pressed(TECH_DATABASE_BUTTON);
		break;

	default:
		break;
	} // end switch

	for (i=0; i<NUM_BUTTONS; i++){
		if (Buttons[i][gr_screen.res].button.pressed()){
			if (credits_screen_button_pressed(i)){
				return;
			}
		}
	}

	gr_reset_clip();	
	GR_MAYBE_CLEAR_RES(Background_bitmap);
	if (Background_bitmap >= 0) {
		gr_set_bitmap(Background_bitmap);
		gr_bitmap(0, 0, GR_RESIZE_MENU);
	} 

	percent = (int) (100.0f - (Credits_artwork_display_time - Credits_counter) * 100.0f / Credits_artwork_fade_time);
	if (percent < 0){
		percent = 0;
	}

	next = Credits_artwork_index + 1;
	if (next >= Credits_num_images){
		next = 0;
	}

	if (Credits_bmps[Credits_artwork_index] < 0) {
		char buf[40];

		if (gr_screen.res == GR_1024) {
			sprintf(buf, NOX("2_CrIm%.2d"), Credits_artwork_index);
		} else {
			sprintf(buf, NOX("CrIm%.2d"), Credits_artwork_index);
		}
		Credits_bmps[Credits_artwork_index] = bm_load(buf);
	}

	if (Credits_bmps[next] < 0) {
		char buf[40];

		if (gr_screen.res == GR_1024) {
			sprintf(buf, NOX("2_CrIm%.2d"), next);
		} else {
			sprintf(buf, NOX("CrIm%.2d"), next);
		}
		Credits_bmps[next] = bm_load(buf);
	}

	bm1 = Credits_bmps[Credits_artwork_index];
	bm2 = Credits_bmps[next];

	if((bm1 != -1) && (bm2 != -1)){
		GR_DEBUG_SCOPE("Render credits bitmap");

		Assert(percent >= 0 && percent <= 100);

		// get width and height
		bm_get_info(bm1, &bw1, &bh1, NULL, NULL, NULL);	
		bm_get_info(bm2, &bw2, &bh2, NULL, NULL, NULL);	
	
		// determine where to draw the coords
		bx1 = Credits_image_coords[gr_screen.res][CREDITS_X_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_W_COORD] - bw1)/2);
		by1 = Credits_image_coords[gr_screen.res][CREDITS_Y_COORD] + ((Credits_image_coords[gr_screen.res][CREDITS_H_COORD] - bh1)/2);
//.........这里部分代码省略.........

// init
void fiction_viewer_init()
{
	if (Fiction_viewer_inited)
		return;

	// no fiction viewer?
	if (!mission_has_fiction())
		return;

	// music
	common_music_init(SCORE_FICTION_VIEWER);

	// see if we have a background bitmap, and if so, which one
	// currently, we prioritize the UI that comes latest in the array;
	// in the future we might specify this in the mission or in a tbl
	for (Fiction_viewer_ui = NUM_FVW_SETTINGS - 1; Fiction_viewer_ui >= 0; Fiction_viewer_ui--)
	{
		// load the first available background bitmap
		Fiction_viewer_bitmap = bm_load(Fiction_viewer_screen_filename[Fiction_viewer_ui][gr_screen.res]);
		if (Fiction_viewer_bitmap >= 0)
			break;
	}
	
	// no ui is valid?
	if (Fiction_viewer_ui < 0)
	{
		Warning(LOCATION, "No fiction viewer graphics -- cannot display fiction viewer!");
		return;
	}

	// set up fiction viewer font
	use_fv_font();

	// calculate text area lines from font
	Fiction_viewer_text_max_lines = Fiction_viewer_text_coordinates[Fiction_viewer_ui][gr_screen.res][3] / gr_get_font_height();

	// window
	Fiction_viewer_window.create(0, 0, gr_screen.max_w_unscaled, gr_screen.max_h_unscaled, 0, Fiction_viewer_fontnum);
	Fiction_viewer_window.set_mask_bmap(Fiction_viewer_screen_mask[Fiction_viewer_ui][gr_screen.res]);	

	// add the buttons
	for (int i = 0; i < NUM_FVW_BUTTONS; i++)
	{
		int repeat = (i == FVW_BUTTON_SCROLL_UP || i == FVW_BUTTON_SCROLL_DOWN);
		ui_button_info *b = &Fiction_viewer_buttons[Fiction_viewer_ui][gr_screen.res][i];

		b->button.create(&Fiction_viewer_window, "", b->x, b->y, b->xt, b->yt, repeat, 1);		
		b->button.set_highlight_action(common_play_highlight_sound);
		b->button.set_bmaps(b->filename);
		b->button.link_hotspot(b->hotspot);
	}

	// set up hotkeys for buttons
	Fiction_viewer_buttons[Fiction_viewer_ui][gr_screen.res][FVW_BUTTON_ACCEPT].button.set_hotkey(KEY_CTRLED | KEY_ENTER);
	Fiction_viewer_buttons[Fiction_viewer_ui][gr_screen.res][FVW_BUTTON_SCROLL_UP].button.set_hotkey(KEY_UP);
	Fiction_viewer_buttons[Fiction_viewer_ui][gr_screen.res][FVW_BUTTON_SCROLL_DOWN].button.set_hotkey(KEY_DOWN);

	// init brief text
	brief_color_text_init(Fiction_viewer_text, Fiction_viewer_text_coordinates[Fiction_viewer_ui][gr_screen.res][2], default_fiction_viewer_color, 0, 0);

	// if the story is going to overflow the screen, add a slider
	if (Num_brief_text_lines[0] > Fiction_viewer_text_max_lines)
	{
		Fiction_viewer_slider.create(&Fiction_viewer_window,
			Fiction_viewer_slider_coordinates[Fiction_viewer_ui][gr_screen.res][0],
			Fiction_viewer_slider_coordinates[Fiction_viewer_ui][gr_screen.res][1],
			Fiction_viewer_slider_coordinates[Fiction_viewer_ui][gr_screen.res][2],
			Fiction_viewer_slider_coordinates[Fiction_viewer_ui][gr_screen.res][3],
			Num_brief_text_lines[0] - Fiction_viewer_text_max_lines,
			Fiction_viewer_slider_filename[Fiction_viewer_ui][gr_screen.res],
			&fiction_viewer_scroll_up,
			&fiction_viewer_scroll_down,
			&fiction_viewer_scroll_capture);
	}

	if (Fiction_viewer_voice >= 0)
	{
		audiostream_play(Fiction_viewer_voice, Master_voice_volume, 0);
	}
	
	Fiction_viewer_inited = 1;
}

// do
void fiction_viewer_do_frame(float frametime)
{
	int i, k, w, h;

	// make sure we exist
	if (!Fiction_viewer_inited)
	{
		fiction_viewer_exit();
		return;
	}

	// process keys
	k = Fiction_viewer_window.process() & ~KEY_DEBUGGED;	

	switch (k)
	{
		case KEY_ESC:
			common_music_close();
			gameseq_post_event(GS_EVENT_MAIN_MENU);
			return;
	}

	// process button presses
	for (i = 0; i < NUM_FVW_BUTTONS; i++)
		if (Fiction_viewer_buttons[Fiction_viewer_ui][gr_screen.res][i].button.pressed())
			fiction_viewer_button_pressed(i);
	
	common_music_do();

	// clear
	GR_MAYBE_CLEAR_RES(Fiction_viewer_bitmap);
	if (Fiction_viewer_bitmap >= 0)
	{
		gr_set_bitmap(Fiction_viewer_bitmap);
		gr_bitmap(0, 0, GR_RESIZE_MENU);
	} 
	
	// draw the window
	Fiction_viewer_window.draw();		

	// render the briefing text
	brief_render_text(Top_fiction_viewer_text_line, Fiction_viewer_text_coordinates[Fiction_viewer_ui][gr_screen.res][0], Fiction_viewer_text_coordinates[Fiction_viewer_ui][gr_screen.res][1], Fiction_viewer_text_coordinates[Fiction_viewer_ui][gr_screen.res][3], frametime);

	// maybe output the "more" indicator
	if ((Fiction_viewer_text_max_lines + Top_fiction_viewer_text_line) < Num_brief_text_lines[0])
	{
		use_std_font();

		// can be scrolled down
		int more_txt_x = Fiction_viewer_text_coordinates[Fiction_viewer_ui][gr_screen.res][0] + (Fiction_viewer_text_coordinates[Fiction_viewer_ui][gr_screen.res][2]/2) - 10;
		int more_txt_y = Fiction_viewer_text_coordinates[Fiction_viewer_ui][gr_screen.res][1] + Fiction_viewer_text_coordinates[Fiction_viewer_ui][gr_screen.res][3];				// located below text, centered

		gr_get_string_size(&w, &h, XSTR("more", 1469), strlen(XSTR("more", 1469)));
		gr_set_color_fast(&Color_black);
		gr_rect(more_txt_x-2, more_txt_y, w+3, h, GR_RESIZE_MENU);
		gr_set_color_fast(&Color_more_indicator);
		gr_string(more_txt_x, more_txt_y, XSTR("more", 1469), GR_RESIZE_MENU);  // base location on the input x and y?

		use_fv_font();
	}

	gr_flip();
}

// init the Popup window
int popup_init(popup_info *pi, int flags)
{
	int					i;
	UI_BUTTON			*b;
	popup_background	*pbg;
	char					*fname;

	if(pi->nchoices == 0){
		pbg = &Popup_background[gr_screen.res][0];
	} else {
		pbg = &Popup_background[gr_screen.res][pi->nchoices-1];
	}

	// anytime in single player, and multiplayer, not in mission, go ahead and stop time
	if ( (Game_mode & GM_NORMAL) || ((Game_mode & GM_MULTIPLAYER) && !(Game_mode & GM_IN_MISSION)) ){
		game_stop_time();
	}

	// create base window
	Popup_window.create(pbg->coords[0], pbg->coords[1], Popup_text_coords[gr_screen.res][2]+100, Popup_text_coords[gr_screen.res][3]+50, 0);
	Popup_window.set_foreground_bmap(pbg->filename);

	// create buttons
	for (i=0; i<pi->nchoices; i++) {
		b = &Popup_buttons[i];
		// accommodate single-choice positive icon being positioned differently
		if ( (pi->nchoices == 1) && (flags&PF_USE_AFFIRMATIVE_ICON) ) {
			b->create(&Popup_window, "", Button_coords[gr_screen.res][i+1][0], Button_coords[gr_screen.res][i+1][1], 30, 25, 0, 1);
		} else {
			b->create(&Popup_window, "", Button_coords[gr_screen.res][i][0], Button_coords[gr_screen.res][i][1], 30, 25, 0, 1);
		}

		fname = popup_get_button_filename(pi, i, flags);
		b->set_bmaps(fname, 3, 0);
		b->set_highlight_action(common_play_highlight_sound);
		if ( pi->keypress[i] >= 0 ) {
			b->set_hotkey(pi->keypress[i]);
		}

		// create invisible buttons to detect mouse presses... can't use mask since button region is dynamically sized
		int lx, w, h;

		gr_get_string_size(&w, &h, pi->button_text[i]);
		lx = Button_regions[gr_screen.res][i][0] - w;
		b = &Popup_button_regions[i];	

		// accommodate single-choice positive icon being positioned differently
		if ( (pi->nchoices == 1) && (flags&PF_USE_AFFIRMATIVE_ICON) ) {
			b->create(&Popup_window, "", lx, Button_regions[gr_screen.res][i+1][1], Button_regions[gr_screen.res][i+1][2]-lx, Button_regions[gr_screen.res][i+1][3]-Button_regions[gr_screen.res][i+1][1], 0, 1);
		} else {
			b->create(&Popup_window, "", lx, Button_regions[gr_screen.res][i][1], Button_regions[gr_screen.res][i][2]-lx, Button_regions[gr_screen.res][i][3]-Button_regions[gr_screen.res][i][1], 0, 1);
		}

		b->hide();
	}

	// webcursor setup
	if (Web_cursor_bitmap >= 0) {
		if (flags & PF_WEB_CURSOR_1) {
			Popup_buttons[1].set_custom_cursor_bmap(Web_cursor_bitmap);
		}
		if (flags & PF_WEB_CURSOR_2) {
			Popup_buttons[2].set_custom_cursor_bmap(Web_cursor_bitmap);
		}
	}

	// if this is an input popup, create and center the popup
	if(flags & PF_INPUT){
		Popup_input.create(&Popup_window, Popup_text_coords[gr_screen.res][0], pbg->coords[1] + Popup_input_y_offset[gr_screen.res], Popup_text_coords[gr_screen.res][2], pi->max_input_text_len, "", UI_INPUTBOX_FLAG_INVIS | UI_INPUTBOX_FLAG_ESC_CLR | UI_INPUTBOX_FLAG_ESC_FOC | UI_INPUTBOX_FLAG_KEYTHRU | UI_INPUTBOX_FLAG_TEXT_CEN);
		Popup_input.set_focus();
	}	
	
	Popup_default_choice=0;
	Popup_should_die = 0;

	if (flags & PF_RUN_STATE) {
		Popup_running_state = 1;
	} else {
		Popup_running_state = 0;
	}

	popup_split_lines(pi, flags);

	// create the popup slider (which we may not need to use
	Popup_slider.create(&Popup_window, Popup_slider_coords[gr_screen.res][0], Popup_slider_coords[gr_screen.res][1], Popup_slider_coords[gr_screen.res][2], Popup_slider_coords[gr_screen.res][3], pi->nlines > Popup_max_display[gr_screen.res] ? pi->nlines - Popup_max_display[gr_screen.res] : 0,
								Popup_slider_name[gr_screen.res], popup_slider_bogus, popup_slider_bogus, NULL);

	return 0;
}

// exit: -1						=>	error
//			0..nchoices-1		=> choice
int popup_do(popup_info *pi, int flags)
{
	int screen_id, choice = -1, done = 0;

	if ( popup_init(pi, flags) == -1 ){
		return -1;
	}

	screen_id = gr_save_screen();

	int old_max_w_unscaled = gr_screen.max_w_unscaled;
	int old_max_h_unscaled = gr_screen.max_h_unscaled;
	int old_max_w_unscaled_zoomed = gr_screen.max_w_unscaled_zoomed;
	int old_max_h_unscaled_zoomed = gr_screen.max_h_unscaled_zoomed;

	gr_reset_screen_scale();

	while(!done) {
		int k;

		os_poll();

		// if we were killed by a call to popup_kill_any_active(), kill the popup
		if(Popup_should_die){
			choice = -1;
			break;
		}

		// if we're flagged as should be running the state underneath, then do so
		if(flags & PF_RUN_STATE){
			game_do_state(gameseq_get_state());
		}
		// otherwise just run the common functions (for networking,etc)
		else {
			game_set_frametime(-1);
			game_do_state_common(gameseq_get_state(),flags & PF_NO_NETWORKING);	// do stuff common to all states 
		}

		k = Popup_window.process();						// poll for input, handle mouse
		choice = popup_process_keys(pi, k, flags);
		if ( choice != POPUP_NOCHANGE ) {
			done=1;
		}

		if ( !done ) {
			choice = popup_check_buttons(pi);
			if ( choice != POPUP_NOCHANGE ) {
				done=1;
			}
		}

		// don't draw anything 
		if(!(flags & PF_RUN_STATE)){
			gr_restore_screen(screen_id);
		}

		// if this is an input popup, store the input text
		if(flags & PF_INPUT){
			Popup_input.get_text(pi->input_text);
		}

		Popup_window.draw();
		popup_force_draw_buttons(pi);
		popup_draw_msg_text(pi, flags);
		popup_draw_button_text(pi, flags);
		gr_flip();
	}

	gr_set_screen_scale(old_max_w_unscaled, old_max_h_unscaled, old_max_w_unscaled_zoomed, old_max_h_unscaled_zoomed);

	popup_close(pi,screen_id);
	return choice;
}

// do
void loop_brief_do(float frametime)
{
	int k;
	int idx;

	// process keys
	k = Loop_brief_window.process();	

	switch (k) {
	case KEY_ESC:
		int do_loop = 0;

		// this popup should be straight forward, and also not allow you to get out
		// of it without actually picking one of the two options
		do_loop = popup(PF_USE_NEGATIVE_ICON | PF_USE_AFFIRMATIVE_ICON | PF_IGNORE_ESC | PF_BODY_BIG, 2, XSTR("Decline", 1467), XSTR("Accept", 1035), XSTR("You must either Accept or Decline before returning to the Main Hall", 1618));

		// if we accepted moving into loop then set it up for the next time the user plays
		if (do_loop == 1) {
			// select the loop mission		
			Campaign.loop_enabled = 1;
			Campaign.loop_reentry = Campaign.next_mission;			// save reentry pt, so we can break out of loop
			Campaign.next_mission = Campaign.loop_mission;
		}

		gameseq_post_event(GS_EVENT_MAIN_MENU);
		return;
	}

	// process button presses
	for (idx=0; idx<NUM_LOOP_BRIEF_BUTTONS; idx++){
		if (Loop_buttons[gr_screen.res][idx].button.pressed()){
			loop_brief_button_pressed(idx);
		}
	}
	
	common_music_do();

	// clear
	GR_MAYBE_CLEAR_RES(Loop_brief_bitmap);
	if (Loop_brief_bitmap >= 0) {
		gr_set_bitmap(Loop_brief_bitmap);
		gr_bitmap(0, 0, GR_RESIZE_MENU);
	} 
	
	// draw the window
	Loop_brief_window.draw();		

	// render the briefing text
	brief_render_text(0, Loop_brief_text_coords[gr_screen.res][0], Loop_brief_text_coords[gr_screen.res][1], Loop_brief_text_coords[gr_screen.res][3], flFrametime);

	if(Loop_anim.num_frames > 0) {
		int x;
		int y;

		bm_get_info((Loop_anim.streaming) ? Loop_anim.bitmap_id : Loop_anim.first_frame, &x, &y, NULL, NULL, NULL);
		x = Loop_brief_anim_center_coords[gr_screen.res][0] - x / 2;
		y = Loop_brief_anim_center_coords[gr_screen.res][1] - y / 2;
		generic_anim_render(&Loop_anim, frametime, x, y, true);
	}

	// render all anims
	anim_render_all(GS_STATE_LOOP_BRIEF, flFrametime);

	gr_flip();
}

// init
void loop_brief_init()
{
	int idx;
	ui_button_info *b;

	// load the background bitmap
	Loop_brief_bitmap = bm_load(Loop_brief_fname[gr_screen.res]);
	Assert(Loop_brief_bitmap != -1);

	// window
	Loop_brief_window.create(0, 0, gr_screen.max_w_unscaled, gr_screen.max_h_unscaled, 0);
	Loop_brief_window.set_mask_bmap(Loop_brief_mask[gr_screen.res]);	

	// add the buttons
	for (idx=0; idx<NUM_LOOP_BRIEF_BUTTONS; idx++) {
		b = &Loop_buttons[gr_screen.res][idx];

		b->button.create(&Loop_brief_window, "", b->x, b->y, 60, 30, 0, 1);		
		b->button.set_highlight_action(common_play_highlight_sound);
		b->button.set_bmaps(b->filename);
		b->button.link_hotspot(b->hotspot);
	}

	// a