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gui.c
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/****************************************************************************
gui.c
graphics user interface
Lord of the Rings game engine
Copyright (C) 2003 Michal Benes
Lord of the Rings game engine is free software;
you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This code 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this code; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*****************************************************************************/
#include "lotr.h"
#include "archive.h"
#include "game.h"
#include "cartoon.h"
#include "character.h"
#include "combat.h"
#include "gui.h"
#include "graphics.h"
#include "lotr_sdl.h"
#include "map.h"
#include "object.h"
#include "shape.h"
#include "sound.h"
#include "timing.h"
#include "utils.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef EXTENDED
#include "pythonspot.h"
#endif
Character *choosed_character;
int wizard_mode;
char wizard_text[1024];
#define PARAGRAPHS_NUM 259
char *paragraphs;
int paragraphs_off[PARAGRAPHS_NUM + 1];
int dialog_mode = DIALOG_NONE;
int dialog_confirm;
int gui_menu_x = -1;
int gui_menu_y = -1;
int gui_paragraph_pos;
int gui_paragraph_isquestion;
/* should we show spots? */
#ifdef DRAW_SPOTS
int gui_show_spots = 1;
#else
int gui_show_spots = 0;
#endif
Palette *gui_palette;
/* Show cart10 after DIALOG_DIED */
static int dialog_died_show_cartoon = FALSE;
/* various GUI components */
#define TEST 15
#define GUI_CHAIN_HORIZ 0
#define GUI_MOUSE 1
#define GUI_MENU 2
#define GUI_SCROLL_TOP 3
#define GUI_CHAIN_VERT 4
#define GUI_CHAIN_SW 5
#define GUI_SCROLL_SW 6
#define GUI_CHAIN_SE 7
#define GUI_SCROLL_SE 8
#define GUI_SCROLL_EMPTY 9
#define GUI_SCROLL_BOT 10
#define GUI_CHAIN_NW 11
#define GUI_SCROLL_NW 12
#define GUI_CHAIN_NE 13
#define GUI_SCROLL_NE 14
#define GUI_FONT 15
#define GUI_COMP_NUM 16
Pixmap *gui_components[GUI_COMP_NUM];
int gui_comp_widths[GUI_COMP_NUM] = { /*00 */ 5,
/*01 */ 160,
/*02 */ 320,
/*03 */ 8,
/*04 */ 6,
/*05 */ 10,
/*06 */ 8,
/*07 */ 10,
/*08 */ 8,
/*09 */ 8,
/*10 */ 8,
/*11 */ 10,
/*12 */ 8,
/*13 */ 10,
/*14 */ 8,
/*15 */ 256
};
#define DEFAULT_SCROLL_WIDTH 20
#define SCROLL_ELEMENT_SIZE 8
Pixmap *gui_font[0x100];
Pixmap *gui_life_bar;
/*
init gui
*/
void
gui_init(void)
{
Archive *archive;
FILE *pal;
int i, j;
/* menu mode initializations */
dialog_mode = DIALOG_NONE;
gui_menu_x = gui_menu_y = 0;
for (i = 0; i < GUI_COMP_NUM; ++i)
gui_components[i] = NULL;
for (i = 0; i < 0x100; ++i)
gui_font[i] = NULL;
pal = lotr_fopen("arts.pal", "rb");
if (lotr_filelen(pal) != sizeof(Palette)) {
fprintf(stderr, "lotr: arts.pal is not a valid palette file\n");
exit(1);
}
gui_palette = lotr_malloc(sizeof(Palette));
if (fread(gui_palette, sizeof(Palette), 1, pal) != 1) {
fprintf(stderr, "lotr: can not read arts.pal\n");
exit(1);
}
fclose(pal);
/* arts palette is stored in 0..0x19 and is mapped to 0x40..0x59 */
palette_copy_colors(gui_palette, 0, 0x20, 0x40);
gui_set_palette();
archive = archive_ndx_open("arts");
for (i = 0; i < GUI_COMP_NUM; ++i) {
gui_components[i] = pixmap_read_from_ndx_archive(archive, i);
pixmap_set_width(gui_components[i], gui_comp_widths[i]);
}
archive_close(archive);
for (j = 0; j < 3; ++j)
for (i = 0; i < 0x20; ++i)
gui_font[0x20 + j * 0x20 + i] =
pixmap_subpixmap(gui_components[GUI_FONT], i * 8, j * 8,
i * 8 + 7, j * 8 + 7);
gui_life_bar = pixmap_new(10, 100);
memset(gui_life_bar->data, 0x4, gui_life_bar->datasize);
/* init paragraphs */
if (lotr_file_exists("para.dat")) {
FILE *parfile;
int parlotr_filelen;
int pos, n;
parfile = lotr_fopen("para.dat", "rb");
parlotr_filelen = lotr_filelen(parfile);
paragraphs = lotr_malloc(parlotr_filelen);
if (fread(paragraphs, 1, parlotr_filelen, parfile) != parlotr_filelen) {
fprintf(stderr, "lotr: can not read file para.dat\n");
perror("lotr");
exit(1);
}
pos = 0;
n = 0;
while (pos < parlotr_filelen && n <= PARAGRAPHS_NUM) {
paragraphs_off[n] = pos;
while (pos < parlotr_filelen && paragraphs[pos] != 0x10)
++pos;
pos += 3;
++n;
}
while (n <= PARAGRAPHS_NUM) {
paragraphs_off[n] = 0;
++n;
}
fclose(parfile);
} else {
paragraphs = NULL;
}
}
/*
init close
*/
void
gui_close(void)
{
int i;
for (i = 0; i < GUI_COMP_NUM; ++i)
if (gui_components[i])
pixmap_free(gui_components[i]);
for (i = 0; i < 0x100; ++i)
if (gui_font[i])
pixmap_free(gui_font[i]);
free(gui_palette);
pixmap_free(gui_life_bar);
if (paragraphs != NULL)
free(paragraphs);
}
/*
set the gui palette
*/
void
gui_set_palette(void)
{
graphics_set_palette(gui_palette, 0x40, 0x20);
}
/*
clears screen and draws the bounding chain
*/
void
gui_clear(void)
{
int i;
Pixmap *pixmap;
graphics_set_window(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
graphics_clear_screen();
gui_set_full_window();
/* horizontal lines */
pixmap = gui_components[GUI_CHAIN_HORIZ];
for (i = gui_components[GUI_CHAIN_NW]->width;
i < SCREEN_WIDTH - gui_components[GUI_CHAIN_NE]->width;
i += pixmap->width) {
pixmap_draw(pixmap, i, 1);
pixmap_draw(pixmap, i, SCREEN_HEIGHT - pixmap->height);
}
/* vertical lines */
pixmap = gui_components[GUI_CHAIN_VERT];
for (i = gui_components[GUI_CHAIN_NW]->height;
i < SCREEN_HEIGHT - gui_components[GUI_CHAIN_SW]->height;
i += pixmap->height) {
pixmap_draw(pixmap, 0, i);
pixmap_draw(pixmap, SCREEN_WIDTH - pixmap->width - 1, i);
}
/* screen corners */
pixmap = gui_components[GUI_CHAIN_NW];
pixmap_draw(pixmap, 0, 0);
pixmap = gui_components[GUI_CHAIN_NE];
pixmap_draw(pixmap, SCREEN_WIDTH - pixmap->width, 0);
pixmap = gui_components[GUI_CHAIN_SW];
pixmap_draw(pixmap, 0, SCREEN_HEIGHT - pixmap->height);
pixmap = gui_components[GUI_CHAIN_SE];
pixmap_draw(pixmap, SCREEN_WIDTH - pixmap->width,
SCREEN_HEIGHT - pixmap->height);
}
/*
draws scroll with a text
*/
void
draw_scroll(int x, int y, int width, int height, const char *text[])
{
/* size of one scroll element */
int size = SCROLL_ELEMENT_SIZE;
int i, j;
/* if width<0 draw the scroll in SE corner */
if (width < 0) {
width = -width;
x = SCREEN_WIDTH - 8 - size * (2 + width);
y = SCREEN_HEIGHT - size * (2 + height);
}
/* first draw an empty scroll */
for (i = 0; i < width; ++i) {
pixmap_draw(gui_components[GUI_SCROLL_TOP], x + (i + 1) * size, y);
for (j = 0; j < height; ++j)
pixmap_draw(gui_components[GUI_SCROLL_EMPTY],
x + (i + 1) * size, y + (j + 1) * size);
pixmap_draw(gui_components[GUI_SCROLL_BOT],
x + (i + 1) * size, y + (height + 1) * size);
}
pixmap_draw(gui_components[GUI_SCROLL_NW], x, y);
pixmap_draw(gui_components[GUI_SCROLL_SW], x, y + (height + 1) * size);
pixmap_draw(gui_components[GUI_SCROLL_NE], x + (width + 1) * size, y);
pixmap_draw(gui_components[GUI_SCROLL_SE], x + (width + 1) * size,
y + (height + 1) * size);
/* next draw the text */
for (j = 0; j < height; ++j)
for (i = 0; i < width; ++i) {
if (gui_font[(Uint8)text[j][i]])
pixmap_draw(gui_font[(Uint8)text[j][i]],
x + (i + 1) * size, y + (j + 1) * size);
if (text[j][i] == 0)
break;
}
}
/*
set the map drawing area
*/
void
gui_set_map_area(int *width, int *height)
{
if (dialog_mode < MAIN_MENU
|| SCREEN_WIDTH > 320 /* Draw whole map for large screens */ ) {
#if PIXEL_PRECISE
*width = SCREEN_WIDTH - 16;
*height = SCREEN_HEIGHT - 16;
graphics_set_window(8, 8, 8 + *width - 1, 8 + *height - 1);
#else
*width = SCREEN_WIDTH - 17;
*height = SCREEN_HEIGHT - 17;
graphics_set_window(8, 9, 8 + *width - 1, 9 + *height - 1);
#endif
} else {
#if PIXEL_PRECISE
*width = SCREEN_WIDTH - 16;
*height = SCREEN_HEIGHT - 8 - gui_components[GUI_MENU]->height;
graphics_set_window(8, 8, 8 + *width - 1, 8 + *height - 1);
#else
*width = SCREEN_WIDTH - 17;
*height = SCREEN_HEIGHT - 8 - gui_components[GUI_MENU]->height - 2;
graphics_set_window(8, 9, 8 + *width - 1, 9 + *height - 1);
#endif
}
}
/*
set the window over whole screen
*/
void
gui_set_full_window(void)
{
#if PIXEL_PRECISE
graphics_set_window(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 2);
#else
graphics_set_window(0, 0, SCREEN_WIDTH - 1, SCREEN_HEIGHT - 1);
#endif
}
/*
draws main menu
*/
#define MAX_LIFE_BAR 55
void
main_menu_draw(void)
{
int life;
/* Keep x position from standard screen size */
gui_menu_x = 0;
gui_menu_y = SCREEN_HEIGHT - gui_components[GUI_MENU]->height;
pixmap_draw(gui_components[GUI_MENU], gui_menu_x, gui_menu_y);
portrait_draw(choosed_character->portrait, gui_menu_x + 48,
gui_menu_y + 9);
life = MAX_LIFE_BAR * choosed_character->life / choosed_character->end;
if (life > MAX_LIFE_BAR)
life = MAX_LIFE_BAR;
gui_life_bar->height = life;
pixmap_draw(gui_life_bar, gui_menu_x + 20,
gui_menu_y + 9 + MAX_LIFE_BAR - life);
gui_life_bar->height = 100;
}
/*
show main menu
*/
void
main_menu_show(void)
{
dialog_mode = MAIN_MENU;
if (dialog_mode == DIALOG_NONE && !combat_get_mode())
choosed_character = game_get_leader();
if (!choosed_character)
choosed_character = game_get_leader();
gui_clear();
game_draw_map();
main_menu_draw();
}
/*
quits all menus
*/
void
quit_menu()
{
dialog_mode = DIALOG_NONE;
choosed_character = NULL;
if (combat_get_mode()) {
main_menu_show();
} else {
gui_clear();
game_draw_map();
lotr_reset_keyboard();
}
}
/*
Change selected character in party
*/
static void
rotate_choosed_character(int delta)
{
Character *party[11];
int num_characters;
int choosed_index;
if (combat_get_mode()) {
fprintf(stderr, "lord: Trying to change character during combat\n");
return;
}
num_characters = game_get_party_characters(party);
for (choosed_index = 0; choosed_index < num_characters; ++choosed_index)
if (choosed_character == party[choosed_index])
break;
if (choosed_index >= num_characters) {
fprintf(stderr, "lord: Choosed character is not in the party\n");
return;
}
choosed_index += delta;
choosed_index = choosed_index % num_characters;
choosed_index += num_characters;
choosed_index = choosed_index % num_characters;
choosed_character = party[choosed_index];
main_menu_show();
}
/*
Choose the next character
*/
static void
choose_next_character(void)
{
rotate_choosed_character(1);
}
/*
Choose the previous character
*/
static void
choose_prev_character(void)
{
rotate_choosed_character(-1);
}
#define MAX_MESSAGELINES 256
/*
format message text
*/
char *
format_text(const char *_text, int *lines, int width,
const char *formatted_text[])
{
int n;
char *text, *t;
int i, j, line;
n = strlen(_text);
t = text = lotr_malloc(n + 1);
strncpy(text, _text, n);
text[n] = 0;
/* format text */
line = 0;
i = j = 0;
while (t[j] != 0) {
if (t[j] == ' ')
i = j;
if (j == width && i > 0) {
t[i] = 0;
formatted_text[line++] = t;
t = t + i + 1;
i = j = 0;
}
++j;
}
if (j != 0) {
t[j] = 0;
formatted_text[line++] = t;
}
if (line == 1) {
formatted_text[line++] = t + j;
}
*lines = line;
return text;
}
/*
shows a message
*/
void
gui_message(const char *text, int small_window)
{
const char *formatted_text[MAX_MESSAGELINES];
int width;
int y;
char *tmptext;
int lines;
if (text == NULL)
return;
if (small_window) {
main_menu_show();
width = DEFAULT_SCROLL_WIDTH;
} else {
if (dialog_mode != DIALOG_BOOK) {
gui_clear();
game_draw_map();
}
width = SCREEN_WIDTH / SCROLL_ELEMENT_SIZE - 4;
}
if (dialog_mode != DIALOG_BOOK)
dialog_mode = DIALOG_MESSAGE;
tmptext = format_text(text, &lines, width, formatted_text);
y = 128;
if (lines > 6)
y -= SCROLL_ELEMENT_SIZE * (lines - 6);
if (y < SCROLL_ELEMENT_SIZE)
y = SCROLL_ELEMENT_SIZE;
if (small_window) {
while (lines < 7)
formatted_text[lines++] = "";
draw_scroll(0, 0, -DEFAULT_SCROLL_WIDTH, 7, formatted_text);
} else {
draw_scroll(SCROLL_ELEMENT_SIZE, 128, width, lines, formatted_text);
}
free(tmptext);
}
/*
parse message keyboard input
*/
void
dialog_message_key(int key)
{
if (key == KEY_ENTER || key == ' ' || key == 'x') {
if (dialog_mode == DIALOG_DIED) {
if (dialog_died_show_cartoon)
cartoon_play("cart10");
exit(0);
}
#ifdef TTT
if (dialog_mode == DIALOG_BOOK) {
gui_set_palette();
map_set_palette();
shapes_set_palette();
gui_clear();
}
#endif
quit_menu();
}
}
/*
shows a question
*/
void
gui_question(char *text)
{
gui_message(text, 0);
lotr_reset_keyboard();
dialog_mode = DIALOG_MESSAGE_YN;
}
/*
parse question keyboard input
*/
void
dialog_message_yn_key(int key)
{
if (key == 'n') {
spot_if_result(game_get_actual_spot(), 0);
quit_menu();
}
if (key == 'y') {
spot_if_result(game_get_actual_spot(), 1);
quit_menu();
}
}
/*
shows dialog saying that the player is dead
if no text is given a default is used
*/
void
gui_died_show(const char *text, int show_cartoon)
{
if (text == NULL)
text =
"You have failed. Sauron has finally recovered the Ring. Your quest is Over.";
gui_message(text, 1);
dialog_mode = DIALOG_DIED;
dialog_died_show_cartoon = show_cartoon;
}
/*
shows a help message
*/
void
gui_help_show()
{
const char *help_text[] = {
"",
" Arrows - move character",
" Space - game menu",
" Escape - exit/options menu",
#ifndef DEBUG
" Shift - 4x time compression",
#endif
"",
" A Attack O Options",
" C Choose char. Q Quit game",
" G Get/Buy T Talk",
" H Help S Skill",
" L Set leader U Use",
" M Magic V View char. ",
#ifdef DEBUG
"",
" Cheating:",
" W Wizard console",
" Ctrl+W Print script",
" Ctrl+Arrows Noclip mode",
" Shift+Arrows Fast noclip",
#endif
""
};
int lines = sizeof(help_text) / sizeof(const char *);
int width = 0;
int xoff, yoff;
int i;
for (i = 0; i < lines; ++i) {
int len = strlen(help_text[i]);
width = max(len, width);
}
xoff = (SCREEN_WIDTH - (width + 2) * SCROLL_ELEMENT_SIZE) / 2;
yoff = (SCREEN_HEIGHT - (lines + 2) * SCROLL_ELEMENT_SIZE) / 2;
dialog_mode = DIALOG_MESSAGE;
draw_scroll(xoff, yoff, width, lines, help_text);
}
/*
draws gui paragraph scroll
*/
void
gui_paragraph_scroll(void)
{
const char *formatted_text[MAX_MESSAGELINES];
int lines, width, x, y;
gui_clear();
game_draw_map();
width = 32;
if (paragraphs[gui_paragraph_pos] == 0x5)
++gui_paragraph_pos;
lines = 0;
while (paragraphs[gui_paragraph_pos] != 0x10 &&
paragraphs[gui_paragraph_pos] != 0x5 && lines < MAX_MESSAGELINES) {
/* add one line */
formatted_text[lines] = paragraphs + gui_paragraph_pos;
while (paragraphs[gui_paragraph_pos] != 0x0d &&
paragraphs[gui_paragraph_pos] != 0)
++gui_paragraph_pos;
paragraphs[gui_paragraph_pos] = 0;
gui_paragraph_pos += 2;
lines++;
}
x = (SCREEN_WIDTH - (width + 2) * SCROLL_ELEMENT_SIZE) / 2;
y = (SCREEN_HEIGHT - (lines + 2) * SCROLL_ELEMENT_SIZE) / 2;
draw_scroll(x, y, width, lines, formatted_text);
}
/*
shows a paragraph
*/
void
gui_paragraph(int num)
{
if (paragraphs == NULL) {
gui_message(game_get_paragraph_text(num, 0), 0);
return;
}
if (num < 0 || num > PARAGRAPHS_NUM)
num = 0;
gui_paragraph_isquestion = 0;
gui_paragraph_pos = paragraphs_off[num];
gui_paragraph_scroll();
if (paragraphs[gui_paragraph_pos] == 0x10) {
/* paragraph does not continue */
dialog_mode = DIALOG_MESSAGE;
} else {
/* paragraph continues */
dialog_mode = DIALOG_PARAGRAPH;
}
}
/*
shows a question paragraph
*/
void
gui_paragraph_question(int num)
{
if (paragraphs == NULL) {
gui_question(game_get_paragraph_text(num, 1));
return;
}
gui_paragraph(num);
gui_paragraph_isquestion = 1;
if (dialog_mode != DIALOG_PARAGRAPH) {
lotr_reset_keyboard();
dialog_mode = DIALOG_MESSAGE_YN;
}
}
/*
parse paragraph keyboard input
*/
void
dialog_paragraph_key(int key)
{
if (key == KEY_ENTER || key == ' ' || key == 'x') {
gui_paragraph_scroll();
if (paragraphs[gui_paragraph_pos] == 0x10) {
/* paragraph does not continue */
if (gui_paragraph_isquestion) {
lotr_reset_keyboard();
dialog_mode = DIALOG_MESSAGE_YN;
} else
dialog_mode = DIALOG_MESSAGE;
} else {
/* paragraph continues */
dialog_mode = DIALOG_PARAGRAPH;
}
}
}
#define MAX_SPOTLINES 4096
static const char *spot_formatted_text[MAX_SPOTLINES];
static int spot_formatted_text_lines = -1;
static int spot_formatted_text_pos = -1;
static int spot_print_xoff = -1;
static int spot_scroll_width = 256;
/*
show the active spot
*/
void
dialog_print_active_spot()
{
Character *leader;
CommandSpot *spot;
char *spot_string;
int screen_height = SCREEN_HEIGHT / SCROLL_ELEMENT_SIZE;
int lines;
if (dialog_mode != DIALOG_SPOT_PRINT || spot_formatted_text_lines < 0) {
char *buf;
int i;
if ((leader = game_get_leader()) == NULL)
return;
if ((spot = map_get_spot(leader)) == NULL)
return;
spot_string = spot_get_string(spot);
dialog_mode = DIALOG_SPOT_PRINT;
/* Format the code */
spot_formatted_text_pos = 0;
spot_formatted_text_lines = 0;
spot_print_xoff = 0;
buf = spot_string;
while (spot_formatted_text_lines < MAX_SPOTLINES && *buf) {
spot_formatted_text[spot_formatted_text_lines++] = buf;
while (*buf && *buf != '\n')
buf++;
/* new line found */
if (*buf) {
*buf = 0;
buf++;
}
}