imported AGI engine

svn-id: r22588

1 files changed, 790 insertions, 0 deletions

diff --git a/engines/agi/savegame.cpp b/engines/agi/savegame.cpp
new file mode 100644
index 0000000000..e4efc4402f
--- /dev/null
+++ b/engines/agi/savegame.cpp
@@ -0,0 +1,790 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2006 The ScummVM project
+ *
+ * Copyright (C) 1999-2003 Sarien Team
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+/*
+ * Savegame support by Vasyl Tsvirkunov <vasyl@pacbell.net>
+ * Multi-slots by Claudio Matsuoka <claudio@helllabs.org>
+ */
+
+#include "common/stdafx.h"
+
+#include "agi/agi.h"
+#include "agi/graphics.h"
+#include "agi/sprite.h"
+#include "agi/text.h"
+#include "agi/savegame.h"
+#include "agi/keyboard.h"
+#include "agi/menu.h"
+
+namespace Agi {
+
+#if defined(WIN32)
+#define MKDIR(a,b) mkdir(a)
+#else
+#define MKDIR(a,b) mkdir(a,b)
+#endif
+
+/* Image stack support */
+struct image_stack_element {
+	uint8 type;
+	uint8 pad;
+	int16 parm1;
+	int16 parm2;
+	int16 parm3;
+	int16 parm4;
+	int16 parm5;
+	int16 parm6;
+	int16 parm7;
+};
+
+#define INITIAL_IMAGE_STACK_SIZE 32
+static int stack_size = 0;
+static struct image_stack_element *image_stack = NULL;
+static int image_stack_pointer = 0;
+
+void clear_image_stack(void) {
+	image_stack_pointer = 0;
+}
+
+void release_image_stack(void) {
+	if (image_stack)
+		free(image_stack);
+	image_stack = NULL;
+	stack_size = image_stack_pointer = 0;
+}
+
+void record_image_stack_call(uint8 type, int16 p1, int16 p2, int16 p3,
+    int16 p4, int16 p5, int16 p6, int16 p7) {
+	struct image_stack_element *pnew;
+
+	if (image_stack_pointer == stack_size) {
+		if (stack_size == 0) {	/* first call */
+			image_stack = (struct image_stack_element *)
+					malloc(INITIAL_IMAGE_STACK_SIZE * sizeof(struct image_stack_element));
+			stack_size = INITIAL_IMAGE_STACK_SIZE;
+		} else {	/* has to grow */
+			struct image_stack_element *new_stack;
+			new_stack = (struct image_stack_element *)
+					malloc(2 * stack_size * sizeof(struct image_stack_element));
+			memcpy(new_stack, image_stack, stack_size * sizeof(struct image_stack_element));
+			free(image_stack);
+			image_stack = new_stack;
+			stack_size *= 2;
+		}
+	}
+
+	pnew = &image_stack[image_stack_pointer];
+	image_stack_pointer++;
+
+	pnew->type = type;
+	pnew->parm1 = p1;
+	pnew->parm2 = p2;
+	pnew->parm3 = p3;
+	pnew->parm4 = p4;
+	pnew->parm5 = p5;
+	pnew->parm6 = p6;
+	pnew->parm7 = p7;
+}
+
+void replay_image_stack_call(uint8 type, int16 p1, int16 p2, int16 p3,
+		int16 p4, int16 p5, int16 p6, int16 p7) {
+	switch (type) {
+	case ADD_PIC:
+		debugC(8, kDebugLevelMain, "--- decoding picture %d ---", p1);
+		agi_load_resource(rPICTURE, p1);
+		decode_picture(p1, p2);
+		break;
+	case ADD_VIEW:
+		agi_load_resource(rVIEW, p1);
+		add_to_pic(p1, p2, p3, p4, p5, p6, p7);
+		break;
+	}
+}
+
+/* */
+
+static char *strSig = "AGI:";
+
+static void write_uint8(Common::File *f, int8 val) {
+	f->write(&val, 1);
+}
+
+static void write_sint16(Common::File *f, int16 val) {
+	static uint8 buf[2];
+	buf[0] = (uint8) ((val >> 8) & 255);
+	buf[1] = (uint8) (val & 255);
+	f->write(buf, 2);
+}
+
+static void write_uint16(Common::File *f, uint16 val) {
+	static uint8 buf[2];
+	buf[0] = (uint8) ((val >> 8) & 255);
+	buf[1] = (uint8) (val & 255);
+	f->write(buf, 2);
+}
+
+static uint8 read_uint8(Common::File *f) {
+	static uint8 buf[1];
+	f->read(buf, 1);
+	return buf[0];
+}
+
+static uint16 read_uint16(Common::File *f) {
+	static uint8 buf[2];
+	f->read(buf, 2);
+	return (buf[0] << 8) | buf[1];
+}
+
+static int16 read_sint16(Common::File *f) {
+	static uint8 buf[2];
+	f->read(buf, 2);
+	return (int16) ((buf[0] << 8) | buf[1]);
+}
+
+static void write_string(Common::File *f, char *s) {
+	write_sint16(f, (int16) strlen(s));
+	f->write(s, strlen(s));
+}
+
+static void read_string(Common::File *f, char *s) {
+	int16 size = read_sint16(f);
+	f->read(s, size);
+	s[size] = (char)0;
+}
+
+static void write_bytes(Common::File *f, char *s, int16 size) {
+	f->write(s, size);
+}
+
+static void read_bytes(Common::File *f, char *s, int16 size) {
+	f->read(s, size);
+}
+
+/*
+ * Version 0: view table has 64 entries
+ * Version 1: view table has 256 entries (needed in KQ3)
+ */
+#define SAVEGAME_VERSION 1
+
+int save_game(char *s, char *d) {
+	int16 i;
+	struct image_stack_element *ptr = image_stack;
+	Common::File f;
+
+	f.open(s, Common::File::kFileWriteMode);
+
+	if (!f.isOpen())
+		return err_BadFileOpen;
+
+	write_bytes(&f, strSig, 8);
+	write_string(&f, d);
+
+	write_uint8(&f, (uint8) SAVEGAME_VERSION);
+	write_uint8(&f, (uint8) game.state);
+	/* game.name */
+	write_string(&f, game.id);
+	/* game.crc */
+
+	for (i = 0; i < MAX_FLAGS; i++)
+		write_uint8(&f, game.flags[i]);
+	for (i = 0; i < MAX_VARS; i++)
+		write_uint8(&f, game.vars[i]);
+
+	write_sint16(&f, (int8) game.horizon);
+	write_sint16(&f, (int16) game.line_status);
+	write_sint16(&f, (int16) game.line_user_input);
+	write_sint16(&f, (int16) game.line_min_print);
+	/* game.cursor_pos */
+	/* game.input_buffer */
+	/* game.echo_buffer */
+	/* game.keypress */
+	write_sint16(&f, (int16) game.input_mode);
+	write_sint16(&f, (int16) game.lognum);
+
+	write_sint16(&f, (int16) game.player_control);
+	write_sint16(&f, (int16) game.quit_prog_now);
+	write_sint16(&f, (int16) game.status_line);
+	write_sint16(&f, (int16) game.clock_enabled);
+	write_sint16(&f, (int16) game.exit_all_logics);
+	write_sint16(&f, (int16) game.picture_shown);
+	write_sint16(&f, (int16) game.has_prompt);
+	write_sint16(&f, (int16) game.game_flags);
+
+	/* Reversed to keep compatibility with old savegames */
+	write_sint16(&f, (int16)!game.input_enabled);
+
+	for (i = 0; i < _HEIGHT; i++)
+		write_uint8(&f, game.pri_table[i]);
+
+	/* game.msg_box_ticks */
+	/* game.block */
+	/* game.window */
+	/* game.has_window */
+
+	write_sint16(&f, (int16)game.gfx_mode);
+	write_uint8(&f, game.cursor_char);
+	write_sint16(&f, (int16)game.color_fg);
+	write_sint16(&f, (int16)game.color_bg);
+
+	/* game.hires (#ifdef USE_HIRES) */
+	/* game.sbuf */
+	/* game.ego_words */
+	/* game.num_ego_words */
+
+	write_sint16(&f, (int16)game.num_objects);
+	for (i = 0; i < (int16)game.num_objects; i++)
+		write_sint16(&f, (int16)object_get_location(i));
+
+	/* game.ev_keyp */
+	for (i = 0; i < MAX_STRINGS; i++)
+		write_string(&f, game.strings[i]);
+
+	/* record info about loaded resources */
+	for (i = 0; i < MAX_DIRS; i++) {
+		write_uint8(&f, game.dir_logic[i].flags);
+		write_sint16(&f, (int16)game.logics[i].sIP);
+		write_sint16(&f, (int16)game.logics[i].cIP);
+	}
+	for (i = 0; i < MAX_DIRS; i++)
+		write_uint8(&f, game.dir_pic[i].flags);
+	for (i = 0; i < MAX_DIRS; i++)
+		write_uint8(&f, game.dir_view[i].flags);
+	for (i = 0; i < MAX_DIRS; i++)
+		write_uint8(&f, game.dir_sound[i].flags);
+
+	/* game.pictures */
+	/* game.logics */
+	/* game.views */
+	/* game.sounds */
+
+	for (i = 0; i < MAX_VIEWTABLE; i++) {
+		struct vt_entry *v = &game.view_table[i];
+
+		write_uint8(&f, v->step_time);
+		write_uint8(&f, v->step_time_count);
+		write_uint8(&f, v->entry);
+		write_sint16(&f, v->x_pos);
+		write_sint16(&f, v->y_pos);
+		write_uint8(&f, v->current_view);
+
+		/* v->view_data */
+
+		write_uint8(&f, v->current_loop);
+		write_uint8(&f, v->num_loops);
+
+		/* v->loop_data */
+
+		write_uint8(&f, v->current_cel);
+		write_uint8(&f, v->num_cels);
+
+		/* v->cel_data */
+		/* v->cel_data_2 */
+
+		write_sint16(&f, v->x_pos2);
+		write_sint16(&f, v->y_pos2);
+
+		/* v->s */
+
+		write_sint16(&f, v->x_size);
+		write_sint16(&f, v->y_size);
+		write_uint8(&f, v->step_size);
+		write_uint8(&f, v->cycle_time);
+		write_uint8(&f, v->cycle_time_count);
+		write_uint8(&f, v->direction);
+
+		write_uint8(&f, v->motion);
+		write_uint8(&f, v->cycle);
+		write_uint8(&f, v->priority);
+
+		write_uint16(&f, v->flags);
+
+		write_uint8(&f, v->parm1);
+		write_uint8(&f, v->parm2);
+		write_uint8(&f, v->parm3);
+		write_uint8(&f, v->parm4);
+	}
+
+	/* Save image stack */
+
+	for (i = 0; i < image_stack_pointer; i++) {
+		ptr = &image_stack[i];
+		write_uint8(&f, ptr->type);
+		write_sint16(&f, ptr->parm1);
+		write_sint16(&f, ptr->parm2);
+		write_sint16(&f, ptr->parm3);
+		write_sint16(&f, ptr->parm4);
+		write_sint16(&f, ptr->parm5);
+		write_sint16(&f, ptr->parm6);
+		write_sint16(&f, ptr->parm7);
+	}
+	write_uint8(&f, 0);
+
+	f.close();
+
+	return err_OK;
+}
+
+int load_game(char *s) {
+	int i, ver, vt_entries = MAX_VIEWTABLE;
+	uint8 t;
+	int16 parm[7];
+	char sig[8];
+	char id[8];
+	char description[256];
+	Common::File f;
+
+	f.open(s);
+
+	if (!f.isOpen())
+		return err_BadFileOpen;
+
+	read_bytes(&f, sig, 8);
+	if (strncmp(sig, strSig, 8)) {
+		f.close();
+		return err_BadFileOpen;
+	}
+
+	read_string(&f, description);
+
+	ver = read_uint8(&f);
+	if (ver == 0)
+		vt_entries = 64;
+	game.state = read_uint8(&f);
+	/* game.name - not saved */
+	read_string(&f, id);
+	if (strcmp(id, game.id)) {
+		f.close();
+		return err_BadFileOpen;
+	}
+	/* game.crc - not saved */
+
+	for (i = 0; i < MAX_FLAGS; i++)
+		game.flags[i] = read_uint8(&f);
+	for (i = 0; i < MAX_VARS; i++)
+		game.vars[i] = read_uint8(&f);
+
+	game.horizon = read_sint16(&f);
+	game.line_status = read_sint16(&f);
+	game.line_user_input = read_sint16(&f);
+	game.line_min_print = read_sint16(&f);
+
+	/* These are never saved */
+	game.cursor_pos = 0;
+	game.input_buffer[0] = 0;
+	game.echo_buffer[0] = 0;
+	game.keypress = 0;
+
+	game.input_mode = read_sint16(&f);
+	game.lognum = read_sint16(&f);
+
+	game.player_control = read_sint16(&f);
+	game.quit_prog_now = read_sint16(&f);
+	game.status_line = read_sint16(&f);
+	game.clock_enabled = read_sint16(&f);
+	game.exit_all_logics = read_sint16(&f);
+	game.picture_shown = read_sint16(&f);
+	game.has_prompt = read_sint16(&f);
+	game.game_flags = read_sint16(&f);
+	game.input_enabled = !read_sint16(&f);
+
+	for (i = 0; i < _HEIGHT; i++)
+		game.pri_table[i] = read_uint8(&f);
+
+	if (game.has_window)
+		close_window();
+	game.msg_box_ticks = 0;
+	game.block.active = false;
+	/* game.window - fixed by close_window() */
+	/* game.has_window - fixed by close_window() */
+
+	game.gfx_mode = read_sint16(&f);
+	game.cursor_char = read_uint8(&f);
+	game.color_fg = read_sint16(&f);
+	game.color_bg = read_sint16(&f);
+
+	/* game.hires (#ifdef USE_HIRES) - rebuilt from image stack */
+	/* game.sbuf - rebuilt from image stack */
+
+	/* game.ego_words - fixed by clean_input */
+	/* game.num_ego_words - fixed by clean_input */
+
+	game.num_objects = read_sint16(&f);
+	for (i = 0; i < (int16) game.num_objects; i++)
+		object_set_location(i, read_sint16(&f));
+
+	/* Those are not serialized */
+	for (i = 0; i < MAX_DIRS; i++) {
+		game.ev_keyp[i].occured = false;
+	}
+
+	for (i = 0; i < MAX_STRINGS; i++)
+		read_string(&f, game.strings[i]);
+
+	for (i = 0; i < MAX_DIRS; i++) {
+		if (read_uint8(&f) & RES_LOADED)
+			agi_load_resource(rLOGIC, i);
+		else
+			agi_unload_resource(rLOGIC, i);
+		game.logics[i].sIP = read_sint16(&f);
+		game.logics[i].cIP = read_sint16(&f);
+	}
+
+	for (i = 0; i < MAX_DIRS; i++) {
+		if (read_uint8(&f) & RES_LOADED)
+			agi_load_resource(rPICTURE, i);
+		else
+			agi_unload_resource(rPICTURE, i);
+	}
+
+	for (i = 0; i < MAX_DIRS; i++) {
+		if (read_uint8(&f) & RES_LOADED)
+			agi_load_resource(rVIEW, i);
+		else
+			agi_unload_resource(rVIEW, i);
+	}
+
+	for (i = 0; i < MAX_DIRS; i++) {
+		if (read_uint8(&f) & RES_LOADED)
+			agi_load_resource(rSOUND, i);
+		else
+			agi_unload_resource(rSOUND, i);
+	}
+
+	/* game.pictures - loaded above */
+	/* game.logics - loaded above */
+	/* game.views - loaded above */
+	/* game.sounds - loaded above */
+
+	for (i = 0; i < vt_entries; i++) {
+		struct vt_entry *v = &game.view_table[i];
+
+		v->step_time = read_uint8(&f);
+		v->step_time_count = read_uint8(&f);
+		v->entry = read_uint8(&f);
+		v->x_pos = read_sint16(&f);
+		v->y_pos = read_sint16(&f);
+		v->current_view = read_uint8(&f);
+
+		/* v->view_data - fixed below  */
+
+		v->current_loop = read_uint8(&f);
+		v->num_loops = read_uint8(&f);
+
+		/* v->loop_data - fixed below  */
+
+		v->current_cel = read_uint8(&f);
+		v->num_cels = read_uint8(&f);
+
+		/* v->cel_data - fixed below  */
+		/* v->cel_data_2 - fixed below  */
+
+		v->x_pos2 = read_sint16(&f);
+		v->y_pos2 = read_sint16(&f);
+
+		/* v->s - fixed below */
+
+		v->x_size = read_sint16(&f);
+		v->y_size = read_sint16(&f);
+		v->step_size = read_uint8(&f);
+		v->cycle_time = read_uint8(&f);
+		v->cycle_time_count = read_uint8(&f);
+		v->direction = read_uint8(&f);
+
+		v->motion = read_uint8(&f);
+		v->cycle = read_uint8(&f);
+		v->priority = read_uint8(&f);
+
+		v->flags = read_uint16(&f);
+
+		v->parm1 = read_uint8(&f);
+		v->parm2 = read_uint8(&f);
+		v->parm3 = read_uint8(&f);
+		v->parm4 = read_uint8(&f);
+	}
+	for (i = vt_entries; i < MAX_VIEWTABLE; i++) {
+		memset(&game.view_table[i], 0, sizeof(struct vt_entry));
+	}
+
+	/* Fix some pointers in viewtable */
+
+	for (i = 0; i < MAX_VIEWTABLE; i++) {
+		struct vt_entry *v = &game.view_table[i];
+
+		if (game.dir_view[v->current_view].offset == _EMPTY)
+			continue;
+
+		if (!(game.dir_view[v->current_view].flags & RES_LOADED))
+			agi_load_resource(rVIEW, v->current_view);
+
+		set_view(v, v->current_view);	/* Fix v->view_data */
+		set_loop(v, v->current_loop);	/* Fix v->loop_data */
+		set_cel(v, v->current_cel);	/* Fix v->cel_data */
+		v->cel_data_2 = v->cel_data;
+		v->s = NULL;	/* not sure if it is used... */
+	}
+
+	erase_both();
+
+	/* Clear input line */
+	clear_screen(0);
+	write_status();
+
+	/* Recreate background from saved image stack */
+	clear_image_stack();
+	while ((t = read_uint8(&f)) != 0) {
+		for (i = 0; i < 7; i++)
+			parm[i] = read_sint16(&f);
+		replay_image_stack_call(t, parm[0], parm[1], parm[2],
+				parm[3], parm[4], parm[5], parm[6]);
+	}
+
+	f.close();
+
+	setflag(F_restore_just_ran, true);
+
+	game.has_prompt = 0;	/* force input line repaint if necessary */
+	clean_input();
+
+	erase_both();
+	blit_both();
+	commit_both();
+	show_pic();
+	do_update();
+
+	return err_OK;
+}
+
+#define NUM_SLOTS 12
+
+static int select_slot() {
+	int i, key, active = 0;
+	int rc = -1;
+	int hm = 2, vm = 3;	/* box margins */
+	char desc[NUM_SLOTS][40];
+
+	for (i = 0; i < NUM_SLOTS; i++) {
+		char name[MAX_PATH];
+		Common::File f;
+		char sig[8];
+		sprintf(name, "%s/%05X_%s_%02d.sav", _savePath, game.crc, game.id, i);
+		f.open(name);
+		if (!f.isOpen()) {
+			strcpy(desc[i], "          (empty slot)");
+		} else {
+			read_bytes(&f, sig, 8);
+			if (strncmp(sig, strSig, 8)) {
+				strcpy(desc[i], "(corrupt file)");
+			} else {
+				read_string(&f, desc[i]);
+			}
+			f.close();
+		}
+	}
+
+	while (42) {
+		char dstr[64];
+		for (i = 0; i < NUM_SLOTS; i++) {
+			sprintf(dstr, "[%-32.32s]", desc[i]);
+			print_text(dstr, 0, hm + 1, vm + 4 + i,
+					(40 - 2 * hm) - 1, i == active ? MSG_BOX_COLOUR : MSG_BOX_TEXT,
+					i == active ? MSG_BOX_TEXT : MSG_BOX_COLOUR);
+
+		}
+
+		poll_timer();	/* msdos driver -> does nothing */
+		key = do_poll_keyboard();
+		if (!console_keyhandler(key)) {
+			switch (key) {
+			case KEY_ENTER:
+				rc = active;
+				strncpy(game.strings[MAX_STRINGS], desc[i], MAX_STRINGLEN);
+				goto press;
+			case KEY_ESCAPE:
+				rc = -1;
+				goto getout;
+#ifdef USE_MOUSE
+			case BUTTON_LEFT:
+				break;
+#endif
+			case KEY_DOWN:
+				active++;
+				active %= NUM_SLOTS;
+				break;
+			case KEY_UP:
+				active--;
+				if (active < 0)
+					active = NUM_SLOTS - 1;
+				break;
+			}
+		}
+		console_cycle();
+	}
+
+press:
+	debugC(8, kDebugLevelMain | kDebugLevelInput, "Button pressed: %d", rc);
+
+getout:
+	close_window();
+	return rc;
+}
+
+int savegame_simple() {
+	char path[MAX_PATH];
+
+	sprintf(path, "%s/%05X_%s_%02d.sav", _savePath, game.crc, game.id, 0);
+	save_game(path, "Default savegame");
+
+	return err_OK;
+}
+
+int savegame_dialog() {
+	char path[MAX_PATH];
+	char *desc;
+	char *buttons[] = { "Do as I say!", "I regret", NULL };
+	char dstr[200];
+	int rc, slot = 0;
+	int hm, vm, hp, vp;	/* box margins */
+	int w;
+
+	hm = 2;
+	vm = 3;
+	hp = hm * CHAR_COLS;
+	vp = vm * CHAR_LINES;
+	w = (40 - 2 * hm) - 1;
+
+	sprintf(path, "%s/%05X_%s_%02d.sav", _savePath, game.crc, game.id, slot);
+
+	draw_window(hp, vp, GFX_WIDTH - hp, GFX_HEIGHT - vp);
+	print_text("Select a slot in which you wish to save the game:",
+			0, hm + 1, vm + 1, w, MSG_BOX_TEXT, MSG_BOX_COLOUR);
+	print_text("Press ENTER to select, ESC cancels",
+			0, hm + 1, vm + 17, w, MSG_BOX_TEXT, MSG_BOX_COLOUR);
+
+	slot = select_slot();
+	if (slot < 0)		/* ESC pressed */
+		return err_OK;
+
+	/* Get savegame description */
+	draw_window(hp, vp + 5 * CHAR_LINES, GFX_WIDTH - hp,
+			GFX_HEIGHT - vp - 9 * CHAR_LINES);
+	print_text("Enter a description for this game:",
+			0, hm + 1, vm + 6, w, MSG_BOX_TEXT, MSG_BOX_COLOUR);
+	draw_rectangle(3 * CHAR_COLS, 11 * CHAR_LINES - 1,
+			37 * CHAR_COLS, 12 * CHAR_LINES, MSG_BOX_TEXT);
+	flush_block(3 * CHAR_COLS, 11 * CHAR_LINES - 1,
+			37 * CHAR_COLS, 12 * CHAR_LINES);
+
+	get_string(2, 11, 33, MAX_STRINGS);
+	print_character(3, 11, game.cursor_char, MSG_BOX_COLOUR, MSG_BOX_TEXT);
+	do {
+		main_cycle();
+	} while (game.input_mode == INPUT_GETSTRING);
+	close_window();
+
+	desc = game.strings[MAX_STRINGS];
+	sprintf(dstr, "Are you sure you want to save the game "
+			"described as:\n\n%s\n\nin slot %d?\n\n\n", desc, slot);
+
+	rc = selection_box(dstr, buttons);
+
+	if (rc != 0) {
+		message_box("Game NOT saved.");
+		return err_OK;
+	}
+
+	sprintf(path, "%s/%05X_%s_%02d.sav", _savePath, game.crc, game.id, slot);
+	debugC(8, kDebugLevelMain | kDebugLevelResources, "file is [%s]", path);
+
+	save_game(path, desc);
+
+	message_box("Game saved.");
+
+	return err_OK;
+}
+
+int loadgame_simple() {
+	char path[MAX_PATH];
+	int rc = 0;
+
+	sprintf(path, "%s/%05X_%s_%02d.sav", _savePath, game.crc, game.id, 0);
+
+	erase_both();
+	stop_sound();
+	close_window();
+
+	if ((rc = load_game(path)) == err_OK) {
+		message_box("Game restored.");
+		game.exit_all_logics = 1;
+		menu_enable_all();
+	} else {
+		message_box("Error restoring game.");
+	}
+
+	return rc;
+}
+
+int loadgame_dialog() {
+	char path[MAX_PATH];
+	int rc, slot = 0;
+	int hm, vm, hp, vp;	/* box margins */
+	int w;
+
+	hm = 2;
+	vm = 3;
+	hp = hm * CHAR_COLS;
+	vp = vm * CHAR_LINES;
+	w = (40 - 2 * hm) - 1;
+
+	sprintf(path, "%s/%05X_%s_%02d.sav", _savePath, game.crc, game.id, slot);
+
+	erase_both();
+	stop_sound();
+
+	draw_window(hp, vp, GFX_WIDTH - hp, GFX_HEIGHT - vp);
+	print_text("Select a game which you wish to\nrestore:",
+			0, hm + 1, vm + 1, w, MSG_BOX_TEXT, MSG_BOX_COLOUR);
+	print_text("Press ENTER to select, ESC cancels",
+			0, hm + 1, vm + 17, w, MSG_BOX_TEXT, MSG_BOX_COLOUR);
+
+	slot = select_slot();
+
+	if (slot < 0) {
+		message_box("Game NOT restored.");
+		return err_OK;
+	}
+
+	sprintf(path, "%s/%05X_%s_%02d.sav", _savePath, game.crc, game.id, slot);
+
+	if ((rc = load_game(path)) == err_OK) {
+		message_box("Game restored.");
+		game.exit_all_logics = 1;
+		menu_enable_all();
+	} else {
+		message_box("Error restoring game.");
+	}
+
+	return rc;
+}
+
+}                             // End of namespace Agi