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map.c
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/****************************************************************************
map.c
handling the game map
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 "character.h"
#include "combat.h"
#include "game.h"
#include "map.h"
#include "spot.h"
#include "gui.h"
#include "graphics.h"
#include "utils.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libxml/parser.h>
#define TILESIZE 8
#define BASICTILENUM 1280
#define TILENUM 1280
#define LARGETILENUM 768
/* map id */
int map_id = 0;
int building_id = -1;
/* map frame */
int map_frame;
/* animation frame */
int map_anim_frame;
/* map fade in % */
int map_fade;
/* map dimensions */
int map_width, map_height;
/* map center */
int map_last_x, map_last_y;
/* climb mode */
int map_climb_mode = 0;
/* buildings in TTT */
#ifdef TTT
#include "building_enters.h"
#define BUILDINGS_NUM 104
int buildings[BUILDINGS_NUM][4];
#endif
/* map tiles */
Pixmap *basictiles[BASICTILENUM];
int tiles[TILENUM][4][4];
int largetiles[LARGETILENUM][4][4];
int tileterrain[TILENUM];
/* map palette */
Palette *map_palette;
/* map mode (normal, dark, fog) */
int map_mode;
int map_mode_param;
int map_light_mode; /* 0 not lighted, 1 torch, 2 illuminated */
/* the map description */
int map_desc[MAP_WIDTH][MAP_HEIGHT];
/* the building description */
int building_desc[BUILDING_WIDTH][BUILDING_HEIGHT];
/* characters */
#define MAX_CHARACTERS 256
#define MAP_CHAR_X 0
#define MAP_CHAR_Y 1
#define MAP_CHAR_DIR 2
#define MAP_CHAR_ID 3
int map_characters_num;
int map_characters[MAX_CHARACTERS][4];
#define MAX_DISPLAYED_CHARACTERS 32
int map_num_disp_char;
int map_displayed_characters[MAX_DISPLAYED_CHARACTERS * 5];
/* map command spots */
int map_num_spots;
CommandSpot *map_spots[MAX_COMMAND_SPOTS];
#ifdef EXTENDED
int map_num_pythonspots;
CommandSpot *map_pythonspots[MAX_PYTHON_SPOTS];
#endif
/* map registers */
Uint8 map_registers[16];
Uint8 map_objects[128 - 16];
#define DAY_FADE 100
#if PIXELPRECISE
#define NIGHT_FADE 50
#else
#define NIGHT_FADE 40
#endif
#define MAP_FADE_STEP 2
/*
init map
*/
void
map_init(void)
{
#ifdef TTT
Archive *archive;
int i, j;
archive = archive_ndx_open("building");
if (archive->size != BUILDINGS_NUM) {
fprintf(stderr, "lotr: expecting %d buildings (%d found)\n",
BUILDINGS_NUM, archive->size);
exit(1);
}
for (i = 0, j = 0; i < BUILDINGS_NUM; ++i)
if (archive_data_size(archive, i)) {
buildings[i][0] = j;
buildings[i][1] = building_enters[j][0];
buildings[i][2] = building_enters[j][1];
buildings[i][3] = building_enters[j][2];
++j;
} else {
buildings[i][0] = -1;
}
archive_close(archive);
building_id = -1;
#endif
bzero(basictiles, sizeof(basictiles));
bzero(tiles, sizeof(tiles));
bzero(largetiles, sizeof(largetiles));
bzero(tileterrain, sizeof(tileterrain));
map_palette = 0;
map_characters_num = 0;
map_num_spots = 0;
#ifdef EXTENDED
map_num_pythonspots = 0;
#endif
map_frame = 0;
map_anim_frame = 0;
}
/*
load map
*/
void
map_load(Uint8 *data)
{
int i;
for (i = 0; i < map_num_spots; ++i)
map_spots[i]->flag = data[i];
memcpy(map_registers, data + 0x80, 16);
memcpy(map_objects, data + 0x80 + 16, 128 - 16);
}
/*
save map
*/
void
map_save(Uint8 *data)
{
int i;
for (i = 0; i < map_num_spots; ++i)
data[i] = map_spots[i]->flag;
for (; i < 0x80; ++i)
data[i] = 0xff;
memcpy(data + 0x80, map_registers, 16);
memcpy(data + 0x80 + 16, map_objects, 128 - 16);
}
/*
close map
*/
void
map_close(void)
{
int i;
for (i = 0; i < BASICTILENUM; ++i)
if (basictiles[i])
pixmap_free(basictiles[i]);
if (map_palette)
free(map_palette);
for (i = 0; i < map_num_spots; ++i)
spot_free(map_spots[i]);
#ifdef EXTENDED
for (i = 0; i < map_num_pythonspots; ++i)
spot_free(map_pythonspots[i]);
#endif
map_num_spots = 0;
}
/*
save map mode
*/
void
map_save_mode(xmlNodePtr node)
{
#ifdef TTT
lotr_save_prop_int(node, "building", building_id);
#endif
lotr_save_prop_int(node, "frame", map_frame);
lotr_save_prop_int(node, "mode", map_mode);
lotr_save_prop_int(node, "mode_param", map_mode_param);
lotr_save_prop_int(node, "light_mode", map_light_mode);
}
/*
load map mode
*/
void
map_load_mode(xmlNodePtr node)
{
#ifdef TTT
int building;
building = lotr_load_prop_int_default(node, "building", -1);
if (building == -1)
map_exit_building();
else
map_enter_building(building);
#endif
map_set_frame(lotr_load_prop_int(node, "frame"));
map_mode = lotr_load_prop_int(node, "mode");
map_mode_param = lotr_load_prop_int(node, "mode_param");
map_light_mode = lotr_load_prop_int(node, "light_mode");
}
/*
set map fade
*/
void
map_set_fade(int fade)
{
if (fade < NIGHT_FADE)
fade = NIGHT_FADE;
if (fade > DAY_FADE)
fade = DAY_FADE;
map_fade = fade;
graphics_fade_palette(map_fade, 0x00, 0x40);
}
/*
set map graphics
*/
void
map_set_tiles(Archive *archive, int basictileindex,
int tileindex, int largetileindex, int tiletypeindex)
{
Uint8 *data;
int size;
int i, k, l;
data = decompress_ndxarchive(archive, basictileindex, &size);
if (size != BASICTILENUM * TILESIZE * TILESIZE) {
fprintf(stderr, "lotr: basic tiles data corrupted\n");
exit(1);
}
for (i = 0; i < BASICTILENUM; ++i) {
if (!basictiles[i])
basictiles[i] = pixmap_new(TILESIZE, TILESIZE);
memcpy(basictiles[i]->data, data + i * TILESIZE * TILESIZE,
TILESIZE * TILESIZE);
}
free(data);
data = decompress_ndxarchive(archive, tileindex, &size);
if (size != TILENUM * 2 * 16) {
fprintf(stderr, "lotr: tiles data corrupted\n");
exit(1);
}
for (i = 0; i < TILENUM; ++i)
for (l = 0; l < 4; ++l)
for (k = 0; k < 4; ++k)
tiles[i][k][l] =
data[(i * 16 + l * 4 + k) * 2] +
0x100 * data[(i * 16 + l * 4 + k) * 2 + 1];
free(data);
data = decompress_ndxarchive(archive, largetileindex, &size);
if (size != LARGETILENUM * 2 * 16) {
fprintf(stderr, "lotr: large tiles data corrupted\n");
exit(1);
}
for (i = 0; i < LARGETILENUM; ++i)
for (l = 0; l < 4; ++l)
for (k = 0; k < 4; ++k)
largetiles[i][k][l] =
data[(i * 16 + l * 4 + k) * 2] +
0x100 * data[(i * 16 + l * 4 + k) * 2 + 1];
free(data);
data = decompress_ndxarchive(archive, tiletypeindex, &size);
if (size != BASICTILENUM) {
fprintf(stderr, "lotr: tile terrain data corrupted\n");
exit(1);
}
for (i = 0; i < BASICTILENUM; ++i) {
tileterrain[i] = data[i];
if (tileterrain[i] < 0 || tileterrain[i] > 15 ||
(tileterrain[i] > 8 && tileterrain[i] < 10)) {
fprintf(stderr, "lotr: terrain type %d unknown\n",
tileterrain[i]);
#ifndef TTT
exit(1);
#endif
}
}
free(data);
}
/* set map palette */
void
map_set_palette_resource(Archive *archive, int paletteindex)
{
int size;
if (map_palette)
free(map_palette);
map_palette =
(Palette *)decompress_ndxarchive(archive, paletteindex, &size);
if (size != sizeof(Palette)) {
fprintf(stderr, "lotr: map palette data corrupted\n");
exit(1);
}
map_set_palette();
}
/*
set the map palette
*/
void
map_set_palette(void)
{
/* 0x00 -- 0x40 are tile colors */
graphics_set_palette(map_palette, 0x00, 0x40);
if (map_id % 2 == 0 && map_is_night())
map_set_fade(NIGHT_FADE);
else
map_set_fade(DAY_FADE);
}
/*
set map description
*/
void
map_set_map(Archive *archive, int id, int mapindex)
{
Uint8 *data;
int size;
int k, l;
map_id = id;
#ifdef TTT
if (building_id != -1)
map_exit_building();
#endif
data = decompress_ndxarchive(archive, mapindex, &size);
if (size != MAP_WIDTH * MAP_HEIGHT * 2) {
fprintf(stderr, "lotr: map data corrupted size=%d\n", size);
exit(1);
}
for (l = 0; l < MAP_HEIGHT; ++l)
for (k = 0; k < MAP_WIDTH; ++k)
map_desc[k][l] =
data[(l * MAP_WIDTH + k) * 2] +
0x100 * data[(l * MAP_WIDTH + k) * 2 + 1];
free(data);
map_num_disp_char = 0;
map_mode = MAP_NORMAL;
map_climb_mode = 0;
map_light_mode = 0;
}
#ifdef TTT
Palette *building_tmp_pal;
/*
enter building in TTT
*/
void
map_enter_building(int id)
{
Archive *building_archive;
Archive *building_pal;
Uint8 *data;
int size;
int k, l;
if (id == building_id)
return;
if (building_id != -1)
map_exit_building();
if (buildings[id][0] == -1)
return;
building_archive = archive_ndx_open("building");
/* load the right map for a given building */
if (buildings[id][1] != map_id)
game_leader_teleport(1, 0, 0, 0xff, buildings[id][1]);
building_pal = archive_ndx_open("buildpal");
building_tmp_pal = map_palette;
map_palette = NULL;
map_set_palette_resource(building_pal, id);
data = decompress_ndxarchive(building_archive, id, &size);
if (size != BUILDING_WIDTH * BUILDING_HEIGHT * 2) {
fprintf(stderr, "lotr: building data corrupted size=%d\n", size);
exit(1);
}
for (l = 0; l < BUILDING_HEIGHT; ++l)
for (k = 0; k < BUILDING_WIDTH; ++k)
building_desc[k][l] =
data[(l * BUILDING_WIDTH + k) * 2] +
0x100 * data[(l * BUILDING_WIDTH + k) * 2 + 1];
free(data);
archive_close(building_archive);
archive_close(building_pal);
building_id = id;
map_characters_num = 0;
character_fill_map(map_id, buildings[id][0]);
}
/*
exit building int TTT
*/
void
map_exit_building()
{
if (building_id == -1)
return;
free(map_palette);
map_palette = building_tmp_pal;
map_set_palette();
building_id = -1;
}
/*
get building id
*/
int
map_get_building(int map, int x, int y)
{
int i;
int result = -1;
int d = 1000;
int dxx, dyy;
for (i = 0; i < 13; ++i)
if (buildings[map * 13 / 2 + i][0] != -1) {
dxx = abs(x - buildings[map * 13 / 2 + i][2]);
dyy = abs(y - buildings[map * 13 / 2 + i][3]);
if (dxx < 0x20 && dyy < 0x20 && dxx + dyy < d) {
d = dxx + dyy;
result = map * 13 / 2 + i;
}
}
return result;
}
/*
building enter coordinates
*/
void
map_building_enter_coords(int id, int *x, int *y)
{
*x = buildings[id][2];
*y = buildings[id][3];
}
#endif
/*
set map command spots
*/
void
map_set_spots(Archive *archive, int index)
{
int i;
int size;
Uint8 *data;
for (i = 0; i < map_num_spots; ++i)
spot_free(map_spots[i]);
map_num_spots = 0;
data = decompress_ndxarchive(archive, index, &size);
if (size < 0x100) {
fprintf(stderr, "lotr: corrupted game description data\n");
exit(1);
}
spot_parse(data, size, map_spots, &map_num_spots);
memcpy(map_registers, data + 0x80, 0x10);
memcpy(map_objects, data + 0x90, 0x70);
free(data);
}
/*
draws tile
*/
INLINE void
map_draw_tile(int tile, int x, int y)
{
int i, j;
for (j = 0; j < 4; ++j)
for (i = 0; i < 4; ++i)
pixmap_draw(basictiles[tiles[tile][i][j]],
x + i * TILESIZE, y + j * TILESIZE);
}
/*
draws large tile
*/
INLINE void
map_draw_largetile(int tile, int x, int y)
{
int i, j;
int tilesize = 4 * TILESIZE;
for (j = 0; j < 4; ++j)
for (i = 0; i < 4; ++i)
map_draw_tile(largetiles[tile][i][j], x + i * tilesize,
y + j * tilesize);
}
int
map_compar_char_pos(const void *a, const void *b)
{
const int *aa = a;
const int *bb = b;
if (aa[1] < bb[1])
return -1;
if (aa[1] > bb[1])
return 1;
if (aa[0] < bb[0])
return -1;
if (aa[0] > bb[0])
return 1;
return 0;
}
/*
draw command spot - map centered in x, y
*/
void
map_draw_spot(CommandSpot *spot, int x, int y, int color)
{
int j;
int sx, sy, sh, sw;
int xx, yy;
j = 5;
while (j + 6 < spot->headersize) {
sx = spot->data[j] + 0x100 * spot->data[j + 1];
sy = spot->data[j + 2] + 0x100 * spot->data[j + 3];
sw = spot->data[j + 4];
sh = spot->data[j + 5];
#ifdef TTT
if (spot->building != -1)
sy += spot->floor * 32 * 4 * TILESIZE / 2;
#endif
xx = 2 * sx - (x - (map_width + 1) / 2) + TILESIZE;
yy = 2 * sy - (y - (map_height + 1) / 2) + TILESIZE;
if (spot->flag)
draw_rectangle(color, xx, yy, xx + sw * 2 + 1, yy + sh * 2 + 1);
else
draw_rectangle(0x42, xx, yy, xx + sw * 2 + 1, yy + sh * 2 + 1);
draw_rectangle(0, xx + 1, yy + 1, xx + sw * 2, yy + sh * 2);
j += 6;
}
}
/*
display map - center at x, y
*/
void
map_display(int x, int y)
{
int largetilesize = 4 * 4 * TILESIZE;
int startx, endx;
int starty, endy;
int i, j;
int xx, yy;
gui_set_map_area(&map_width, &map_height);
if (combat_get_mode()) {
x = map_last_x;
y = map_last_y;
} else {
if (x < (map_width + 1) / 2)
x = (map_width + 1) / 2;
if (y < (map_height + 1) / 2)
y = (map_height + 1) / 2;
#ifdef TTT
if (building_id != -1 && x > 32 * 4 * TILESIZE - (map_width + 1) / 2)
x = 32 * 4 * TILESIZE - (map_width + 1) / 2;
#endif
map_last_x = x;
map_last_y = y;
}
/* calculate which tiles to draw */
#ifdef TTT
if (building_id != -1)
largetilesize = 4 * TILESIZE;
#endif
startx = (x - (map_width + 1) / 2) / largetilesize;
endx = (x + (map_width + 1) / 2) / largetilesize;
endx += 1;
#ifndef TTT
if (endx > MAP_WIDTH)
endx = MAP_WIDTH;
#else
if (building_id == -1 && endx > MAP_WIDTH)
endx = MAP_WIDTH;
if (building_id != -1 && endx > BUILDING_WIDTH)
endx = BUILDING_WIDTH;
#endif
starty = (y - (map_height + 1) / 2) / largetilesize;
endy = (y + (map_height + 1) / 2) / largetilesize;
endy += 1;
#ifndef TTT
if (endy > MAP_HEIGHT)
endy = MAP_HEIGHT;
#else
if (building_id == -1 && endy > MAP_HEIGHT)
endy = MAP_HEIGHT;
if (building_id != -1 && endy > BUILDING_HEIGHT)
endy = BUILDING_HEIGHT;
#endif
/*
draw map
*/
#ifdef TTT
if (building_id == -1)
#endif
if (map_mode == MAP_NORMAL || map_mode == MAP_LIGHTED)
for (j = starty; j < endy; ++j)
for (i = startx; i < endx; ++i)
map_draw_largetile(map_desc[i][j],
i * largetilesize - (x -
(map_width +
1) / 2),
j * largetilesize - (y -
(map_height +
1) / 2));
#ifdef TTT
if (building_id != -1
&& (map_mode == MAP_NORMAL || map_mode == MAP_LIGHTED))
for (j = starty; j < endy; ++j)
for (i = startx; i < endx; ++i)
map_draw_tile(building_desc[i][j],
i * largetilesize - (x - (map_width + 1) / 2),
j * largetilesize - (y - (map_height + 1) / 2));
#endif
if (map_mode == MAP_DARK)
graphics_clear_screen();
if (map_mode == MAP_FOG)
graphics_set_screen(map_mode_param);
/*
draw spots
*/
if (gui_if_show_spots()) {
/* draw normal spots */
for (i = 0; i < map_num_spots; ++i) {
if (map_spots[i]->map == map_id) {
CommandSpot *spot = map_spots[i];
#ifdef TTT
if (spot->building != building_id)
continue;
#endif
map_draw_spot(spot, x, y, 0x41);
}
}
/* draw python spots */
#ifdef EXTENDED
for (i = 0; i < map_num_pythonspots; ++i) {
if (map_pythonspots[i]->map == map_id) {
CommandSpot *spot = map_pythonspots[i];
#ifdef TTT
if (spot->building != building_id)
continue;
#endif
map_draw_spot(spot, x, y, 0x48);
}
}
#endif
}
/*
draw characters
*/
map_num_disp_char = 0;
for (i = 0; i < map_characters_num; ++i)
if (map_characters[i][MAP_CHAR_ID]) {
xx = 2 * map_characters[i][MAP_CHAR_X] - (x -
(map_width + 1) / 2) +
3 * TILESIZE;
yy = 2 * map_characters[i][MAP_CHAR_Y] - (y -
(map_height + 1) / 2) +
2 * TILESIZE;
if (xx > -100 && yy >= -100 && xx < map_width + 100
&& yy < map_height + 100) {
if (map_num_disp_char == MAX_DISPLAYED_CHARACTERS) {
fprintf(stderr, "Too many chracters displayed at once\n");
exit(1);
}
map_displayed_characters[map_num_disp_char * 5] = xx;
map_displayed_characters[map_num_disp_char * 5 + 1] = yy;
map_displayed_characters[map_num_disp_char * 5 + 2] =
map_characters[i][MAP_CHAR_ID];
map_displayed_characters[map_num_disp_char * 5 + 3] =
map_characters[i][MAP_CHAR_DIR];
map_displayed_characters[map_num_disp_char * 5 + 4] = i;
++map_num_disp_char;
}
}
qsort(map_displayed_characters, map_num_disp_char, sizeof(int) * 5,
map_compar_char_pos);
for (i = 0; i < map_num_disp_char; ++i) {
character_draw(map_displayed_characters[i * 5 + 2],
map_displayed_characters[i * 5 + 0],
map_displayed_characters[i * 5 + 1],
map_displayed_characters[i * 5 + 3]);
}
gui_set_full_window();
if (combat_get_mode() && SCREEN_WIDTH > 320) {
/* Must redraw menu for large screens because
it overlaps with the map */
main_menu_draw();
}
}
/*
map set frame
*/
void
map_set_frame(int frame)
{
map_frame = frame;
if (map_id % 2 == 0 && map_is_night())
map_set_fade(NIGHT_FADE);
else
map_set_fade(DAY_FADE);
}
/*
map get frame
*/
int
map_get_frame(void)
{
return map_frame;
}
/*
map is night
*/
int
map_is_night(void)
{
return map_frame % 0x800 < 0x400;
}
/*
map animate frame
*/
void
map_animate_frame(void)
{