#include "draw_wins.h"
#include "keybindings.h"
#include "readwrite.h"
-#include "actors.h"
+#include "objects_on_map.h"
uint16_t rrand(char use_seed, uint32_t new_seed) {
// Pseudo-random number generator (LGC algorithm). Use instead of rand() to ensure portable predictability.
return (seed / 65536); } // Ignore least significant 16 bits (they are less random).
void update_log (struct World * world, char * text) {
-// Update log with new text to be appended.
+// Update log by appending text, or by appending a "." if text is the same as the last one.
+ static char * last_msg;
+ if (0 == last_msg)
+ last_msg = calloc(1, sizeof(char));
char * new_text;
uint16_t len_old = strlen(world->log);
- uint16_t len_new = strlen(text);
- uint16_t len_whole = len_old + len_new + 1;
- new_text = calloc(len_whole, sizeof(char));
- memcpy(new_text, world->log, len_old);
- memcpy(new_text + len_old, text, len_new);
+ if (0 == strcmp(last_msg, text)) {
+ uint16_t len_whole = len_old + 1;
+ new_text = calloc(len_whole + 1, sizeof(char));
+ memcpy(new_text, world->log, len_old);
+ memcpy(new_text + len_old, ".", 1); }
+ else {
+ uint16_t len_new = strlen(text);
+ uint16_t len_whole = len_old + len_new + 1;
+ new_text = calloc(len_whole, sizeof(char));
+ memcpy(new_text, world->log, len_old);
+ memcpy(new_text + len_old, text, len_new);
+ last_msg = calloc(len_new + 1, sizeof(char));
+ memcpy(last_msg, text, len_new); }
free(world->log);
world->log = new_text; }
for (x = 0; x < map.size.x; x++)
map.cells[(y * map.size.x) + x] = '~';
map.cells[size / 2 + (map.size.x / 2)] = '.';
- uint32_t repeats, root, curpos;
- for (root = 0; root * root * root < size; root++);
- for (repeats = 0; repeats < size * root; repeats++) {
+ uint32_t curpos;
+ while (1) {
y = rrand(0, 0) % map.size.y;
x = rrand(0, 0) % map.size.x;
curpos = y * map.size.x + x;
( (curpos >= map.size.x && '.' == map.cells[curpos - map.size.x])
|| (curpos < map.size.x * (map.size.y-1) && '.' == map.cells[curpos + map.size.x])
|| (curpos > 0 && curpos % map.size.x != 0 && '.' == map.cells[curpos-1])
- || (curpos < (map.size.x * map.size.y) && (curpos+1) % map.size.x != 0 && '.' == map.cells[curpos+1])))
- map.cells[y * map.size.x + x] = '.'; }
+ || (curpos < (map.size.x * map.size.y) && (curpos+1) % map.size.x != 0 && '.' == map.cells[curpos+1]))) {
+ if (y == 0 || y == map.size.y - 1 || x == 0 || x == map.size.x - 1)
+ break;
+ map.cells[y * map.size.x + x] = '.'; } }
return map; }
void map_scroll (struct Map * map, char dir) {
world->turn++;
rrand(1, world->seed * world->turn);
struct Monster * monster;
- for (monster = world->monster; monster != 0; monster = monster->next)
+ for (monster = world->monster; monster != 0; monster = monster->cmo.next)
move_monster(world, monster); }
void save_game(struct World * world) {
FILE * file = fopen("savefile", "w");
write_uint32_bigendian(world->seed, file);
write_uint32_bigendian(world->turn, file);
- write_uint16_bigendian(world->player->pos.y, file);
- write_uint16_bigendian(world->player->pos.x, file);
- write_uint16_bigendian(world->monster->pos.y, file);
- write_uint16_bigendian(world->monster->pos.x, file);
- write_uint16_bigendian(world->monster->next->pos.y, file);
- write_uint16_bigendian(world->monster->next->pos.x, file);
- write_uint16_bigendian(world->monster->next->next->pos.y, file);
- write_uint16_bigendian(world->monster->next->next->pos.x, file);
+ write_uint16_bigendian(world->player->pos.y + 1, file);
+ write_uint16_bigendian(world->player->pos.x + 1, file);
+ write_map_objects (world->monster, file, write_map_objects_monsterdata);
+ write_map_objects (world->item, file, readwrite_map_objects_dummy);
fclose(file); }
void toggle_window (struct WinMeta * win_meta, struct Win * win) {
map_scroll (world->map, WEST);
return 0; }
+void write_map_objects_monsterdata (void * start, FILE * file) {
+// Write to file data specific tto map objects of type monster.
+ struct Monster * monster = (struct Monster *) start;
+ fputc(monster->hitpoints, file); }
+
+void readwrite_map_objects_dummy (void * dummy, FILE * file) {
+// Dummy function for calls of (write|read)_map_objects on map objects without specific attributes.
+ ; }
+
+void write_map_objects (void * start, FILE * file, void (* f) (void *, FILE *) ) {
+// Write into file the map object chain starting at start, use f() for object-type specific data.
+ struct ChainMapObject * cmo;
+ for (cmo = start; cmo != 0; cmo = cmo->next) {
+ write_uint16_bigendian(cmo->pos.y + 1, file);
+ write_uint16_bigendian(cmo->pos.x + 1, file);
+ fputc(cmo->name, file);
+ f (cmo, file); }
+ write_uint16_bigendian(0, file); }
+
+void read_map_objects_monsterdata (void * start, FILE * file) {
+// Read from file data speciifc to map objects of type monster.
+ struct Monster * monster = (struct Monster *) start;
+ monster->hitpoints = fgetc(file); }
+
+void read_map_objects (void * start, FILE * file, size_t size, void (* f) (void *, FILE *) ) {
+// Read from file chain of map objects starting at start, use f() for object-type specific data.
+ int * q = start;
+ * q = 0;
+ struct ChainMapObject * cmo;
+ struct ChainMapObject * * z = start;
+ uint16_t test;
+ char still_at_start = 1;
+ while (1) {
+ test = read_uint16_bigendian(file);
+ if (0 == test)
+ break;
+ if (still_at_start) {
+ cmo = malloc(size);
+ * z = cmo;
+ still_at_start = 0; }
+ else {
+ cmo->next = malloc(size);
+ cmo = cmo->next; }
+ cmo->pos.y = test - 1;
+ cmo->pos.x = read_uint16_bigendian(file) - 1;
+ cmo->name = fgetc(file);
+ f (cmo, file); }
+ if (!still_at_start)
+ cmo->next = 0; }
+
+void build_map_objects_monsterdata (void * start) {
+// Build data specific to map objects of type monster.
+ struct Monster * monster = (struct Monster *) start;
+ monster->cmo.name = 'A' + (rrand(0, 0) % 8);
+ monster->hitpoints = 5; }
+
+void build_map_objects_itemdata (void * start) {
+// Build data speciifc to map objects of type data.
+ struct Item * item = (struct Item *) start;
+ item->cmo.name = '#' + (rrand(0, 0) % 4); }
+
+void build_map_objects (void * start, unsigned char n, size_t size, void (* f) (void *), struct Map * map) {
+// Build chain of n map objects starting at start, use f() for object-specific data.
+ int * q = start;
+ * q = 0;
+ unsigned char i;
+ struct ChainMapObject * cmo;
+ struct ChainMapObject * * z = start;
+ char still_at_start = 1;
+ for (i = 0; i < n; i++) {
+ if (still_at_start) {
+ cmo = malloc(size);
+ * z = cmo;
+ still_at_start = 0; }
+ else {
+ cmo->next = malloc(size);
+ cmo = cmo->next; }
+ cmo->pos = find_passable_pos(map);
+ f(cmo); }
+ if (!still_at_start)
+ cmo->next = 0; }
+
int main (int argc, char *argv[]) {
struct World world;
default:
exit(EXIT_FAILURE); } }
- // Initialize log, player and monsters.
+ // Initialize log, player, monsters and items.
world.log = calloc(1, sizeof(char));
update_log (&world, " ");
struct Player player;
world.player = &player;
- struct Monster monster1;
- struct Monster monster2;
- struct Monster monster3;
- world.monster = &monster1;
- monster1.next = &monster2;
- monster2.next = &monster3;
- monster3.next = 0;
- monster1.name = 'A';
- monster2.name = 'B';
- monster3.name = 'C';
// For interactive mode, try to load world state from savefile.
FILE * file;
file = fopen("savefile", "r");
world.seed = read_uint32_bigendian(file);
world.turn = read_uint32_bigendian(file);
- player.pos.y = read_uint16_bigendian(file);
- player.pos.x = read_uint16_bigendian(file);
- monster1.pos.y = read_uint16_bigendian(file);
- monster1.pos.x = read_uint16_bigendian(file);
- monster2.pos.y = read_uint16_bigendian(file);
- monster2.pos.x = read_uint16_bigendian(file);
- monster3.pos.y = read_uint16_bigendian(file);
- monster3.pos.x = read_uint16_bigendian(file);
+ player.pos.y = read_uint16_bigendian(file) - 1;
+ player.pos.x = read_uint16_bigendian(file) - 1;
+ read_map_objects (&world.monster, file, sizeof(struct Monster), read_map_objects_monsterdata);
+ read_map_objects (&world.item, file, sizeof(struct Item), readwrite_map_objects_dummy);
fclose(file); }
- // For non-interactive mode, try to load world state from frecord file.
+ // For non-interactive mode, try to load world state from record file.
else {
world.turn = 1;
if (0 == world.interactive) {
struct Map map = init_map();
world.map = ↦
if (1 == world.turn) {
- for (player.pos.y = player.pos.x = 0; 0 == is_passable(&map, player.pos.y, player.pos.x);) {
- player.pos.y = rrand(0, 0) % map.size.y;
- player.pos.x = rrand(0, 0) % map.size.x; }
- struct Monster * monster;
- for (monster = world.monster; monster != 0; monster = monster->next)
- for (monster->pos.y = monster->pos.x = 0; 0 == is_passable(&map, monster->pos.y, monster->pos.x);) {
- monster->pos.y = rrand(0, 0) % map.size.y;
- monster->pos.x = rrand(0, 0) % map.size.x; } }
+ player.pos = find_passable_pos(&map);
+ unsigned char n_monsters = rrand(0, 0) % 16;
+ unsigned char n_items = rrand(0, 0) % 48;
+ build_map_objects (&world.monster, n_monsters, sizeof(struct Monster), build_map_objects_monsterdata, &map);
+ build_map_objects (&world.item, n_items, sizeof(struct Item), build_map_objects_itemdata, &map); }
// Initialize window system and windows.
WINDOW * screen = initscr();