+#include <stdlib.h>
+#include <limits.h>
+#include <stdint.h>
#include <ncurses.h>
#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
#include "windows.h"
-
-struct Map {
- int width;
- int height;
- int offset_x;
- int offset_y;
- int player_x;
- int player_y;
- char * cells; };
-
-struct KeyBinding {
- char * name;
- int key; };
-
-struct KeysWinData {
- int max;
- char edit;
- int select; };
-
-struct World {
- struct KeyBinding * keybindings;
- struct KeysWinData * keyswindata; };
-
-void draw_with_linebreaks (struct Win * win, char * text, int start_y) {
-// Write text into window content space. Start on row start_y. Fill unused rows with whitespace.
- int x, y;
- char toggle;
- char fin = 0;
- int z = -1;
- for (y = start_y; y < win->height; y++) {
- if (0 == fin)
- toggle = 0;
- for (x = 0; x < win->width; x++) {
- if (0 == toggle) {
- z++;
- if ('\n' == text[z]) {
- mvwaddch(win->curses_win, y, x, ' ');
- toggle = 1;
- continue; }
- else
- mvwaddch(win->curses_win, y, x, text[z]);
- if ('\n' == text[z+1]) {
- z++;
- toggle = 1; }
- else if (0 == text[z+1]) {
- toggle = 1;
- fin = 1; } }
- else
- mvwaddch(win->curses_win, y, x, ' '); } } }
-
-void draw_text_from_bottom (struct Win * win) {
-// Draw text in win->data from end/bottom to the top.
- char * text = (char *) win->data;
- char toggle = 0;
- int x, y, offset;
- int z = -1;
- for (y = 0; 0 == toggle; y++) // Determine number of lines text would have in a window of
- for (x = 0; x < win->width; x++) { // available width, but infinite height.
- z++;
- if ('\n' == text[z]) // Treat \n and \0 as control characters for incrementing y and
- break; // stopping the loop. Make sure they don't count as cell space
- if ('\n' == text[z+1]) { // themselves.
- z++;
- break; }
- else if (0 == text[z+1]) {
- toggle = 1;
- break; } }
- z = -1;
- int start_y = 0;
- if (y < win->height) { // Depending on what is bigger, determine start point in window or in text.
- start_y = win->height - y;
- for (y = 0; y < start_y; y++)
- for (x = 0; x < win->width; x++)
- mvwaddch(win->curses_win, y, x, ' '); }
- else if (y > win->height) {
- offset = y - win->height;
- for (y = 0; y < offset; y++)
- for (x = 0; x < win->width; x++) {
- z++;
- if ('\n' == text[z])
- break;
- if ('\n' == text[z+1]) {
- z++;
- break; } }
- text = text + (sizeof(char) * (z + 1)); }
- draw_with_linebreaks(win, text, start_y); }
-
-void draw_map (struct Win * win) {
-// Draw map determined by win->data Map struct into window. Respect offset.
- struct Map map = * (struct Map *) win->data;
- char * cells = map.cells;
- int width_map_av = map.width - map.offset_x;
- int height_map_av = map.height - map.offset_y;
- int x, y, z;
- for (y = 0; y < win->height; y++) {
- z = map.offset_x + (map.offset_y + y) * (map.width);
- for (x = 0; x < win->width; x++) {
- if (y < height_map_av && x < width_map_av) {
- if (z == (map.width * map.player_y) + map.player_x)
- mvwaddch(win->curses_win, y, x, '@');
- else
- mvwaddch(win->curses_win, y, x, cells[z]);
- z++; }
- else
- mvwaddch(win->curses_win, y, x, ' '); } } }
-
-void draw_info (struct Win * win) {
-// Draw info window by appending win->data integer value to "Turn: " display.
- int count = * (int *) win->data;
- char text[100];
- snprintf(text, 100, "Turn: %d", count);
- draw_with_linebreaks(win, text, 0); }
+#include "draw_wins.h"
+#include "roguelike.h"
+#include "keybindings.h"
void toggle_window (struct WinMeta * win_meta, struct Win * win) {
// Toggle display of window win.
- if (0 != win->curses_win)
+ if (0 != win->curses)
suspend_window(win_meta, win);
else
append_window(win_meta, win); }
+void growshrink_active_window (struct WinMeta * win_meta, char change) {
+// Grow or shrink active window horizontally or vertically by one cell size.
+ if (0 != win_meta->active) {
+ uint16_t height = win_meta->active->height;
+ uint16_t width = win_meta->active->width;
+ if (change == '-')
+ height--;
+ else if (change == '+')
+ height++;
+ else if (change == '_')
+ width--;
+ else if (change == '*')
+ width++;
+ resize_active_window (win_meta, height, width); } }
+
struct Map init_map () {
// Initialize map with some experimental start values.
struct Map map;
- map.width = 128;
- map.height = 128;
+ map.width = 96;
+ map.height = 32;
map.offset_x = 0;
map.offset_y = 0;
- map.player_x = 2;
- map.player_y = 2;
map.cells = malloc(map.width * map.height);
- int x, y;
+ uint16_t x, y, ran;
+ char terrain;
for (y = 0; y < map.height; y++)
- for (x = 0; x < map.width; x++)
- map.cells[(y * map.width) + x] = '.';
- map.cells[(5 * map.width) + 5] = 'X';
- map.cells[(3 * map.width) + 8] = 'X';
- map.cells[(8 * map.width) + 3] = 'X';
+ for (x = 0; x < map.width; x++) {
+ terrain = '.';
+ ran = rand();
+ if ( 0 == ran % ((x*x) / 3 + 1)
+ || 0 == ran % ((y*y) / 3 + 1)
+ || 0 == ran % ((map.width - x - 1) * (map.width - x - 1) / 3 + 1)
+ || 0 == ran %((map.height - y - 1) * (map.height - y - 1) / 3 + 1))
+ terrain = ' ';
+ map.cells[(y * map.width) + x] = terrain; }
return map; }
-void update_info (struct Win * win) {
-// Update info data by incrementing turn value.
- * (int *) win->data = * (int *) win->data + 1; }
+void map_scroll (struct Map * map, char dir) {
+// Scroll map into direction dir if possible by changing the offset.
+ if ('n' == dir && map->offset_y > 0)
+ map->offset_y--;
+ else if ('s' == dir)
+ map->offset_y++;
+ else if ('w' == dir && map->offset_x > 0)
+ map->offset_x--;
+ else if ('e' == dir)
+ map->offset_x++; }
+
+void next_turn (struct World * world) {
+// Increment turn and move enemy.
+ world->turn++;
+ char d = rand() % 5;
+ char ty = world->monster->y;
+ char tx = world->monster->x;
+ if (1 == d)
+ ty++;
+ else if (2 == d)
+ ty--;
+ else if (3 == d)
+ tx++;
+ else if (4 == d)
+ tx--;
+ if (tx == world->player->x && ty == world->player->y)
+ update_log(world, "\nThe monster hits you.");
+ else if (is_passable(world, tx, ty)) {
+ world->monster->y = ty;
+ world->monster->x = tx; } }
-void update_log (struct Win * win, char * text) {
+void update_log (struct World * world, char * text) {
// Update log with new text to be appended.
char * new_text;
- int len_old = strlen(win->data);
- int len_new = strlen(text);
- int len_whole = len_old + len_new + 1;
+ 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, win->data, len_old);
+ memcpy(new_text, world->log, len_old);
memcpy(new_text + len_old, text, len_new);
- free(win->data);
- win->data = new_text; }
+ free(world->log);
+ world->log = new_text; }
-int get_action_key (struct KeyBinding * keybindings, char * name) {
-// Return key matching name in keybindings.
- int i = 0;
- while (strcmp(keybindings[i].name, name) )
- i++;
- return keybindings[i].key; }
+char is_passable (struct World * world, uint16_t x, uint16_t y) {
+// Check if coordinate on (or beyond) map is accessible to movement.
+ char passable = 0;
+ if (0 <= x && x < world->map->width && 0 <= y && y < world->map->height)
+ if ('.' == world->map->cells[y * world->map->width + x])
+ passable = 1;
+ return passable; }
-char * get_keyname(int keycode) {
-// Translate some keycodes to readable names of max 9 chars.
- char * keyname;
- keyname = malloc(15);
- if (32 < keycode && keycode < 127)
- sprintf(keyname, "%c", keycode);
- else if (keycode == 9)
- sprintf(keyname, "TAB");
- else if (keycode == 10)
- sprintf(keyname, "RETURN");
- else if (keycode == 27)
- sprintf(keyname, "ESCAPE");
- else if (keycode == 32)
- sprintf(keyname, "SPACE");
- else if (keycode == KEY_UP)
- sprintf(keyname, "UP");
- else if (keycode == KEY_DOWN)
- sprintf(keyname, "DOWN");
- else if (keycode == KEY_LEFT)
- sprintf(keyname, "LEFT");
- else if (keycode == KEY_RIGHT)
- sprintf(keyname, "RIGHT");
- else if (keycode == KEY_HOME)
- sprintf(keyname, "HOME");
- else if (keycode == KEY_BACKSPACE)
- sprintf(keyname, "BACKSPACE");
- else if (keycode >= KEY_F0 && keycode <= KEY_F(63)) {
- int f = keycode - KEY_F0;
- sprintf(keyname, "F%d", f); }
- else if (keycode == KEY_DC)
- sprintf(keyname, "DELETE");
- else if (keycode == KEY_IC)
- sprintf(keyname, "INSERT");
- else if (keycode == KEY_NPAGE)
- sprintf(keyname, "NEXT PAGE");
- else if (keycode == KEY_PPAGE)
- sprintf(keyname, "PREV PAGE");
- else if (keycode == KEY_END)
- sprintf(keyname, "END");
- else
- sprintf(keyname, "(unknown)");
- return keyname; }
+void move_player (struct World * world, char d) {
+// Move player in direction d, increment turn counter and update log.
+ static char prev = 0;
+ char success = 0;
+ char * dir;
+ char ty = world->player->y;
+ char tx = world->player->x;
+ if ('s' == d) {
+ dir = "south";
+ ty++; }
+ if ('n' == d) {
+ dir = "north";
+ ty--; }
+ if ('w' == d) {
+ dir = "west";
+ tx--; }
+ if ('e' == d) {
+ dir = "east";
+ tx++; }
+ if (ty == world->monster->y && tx == world->monster->x)
+ success = 2;
+ else if (is_passable(world, tx, ty)) {
+ success = 1;
+ world->player->y = ty;
+ world->player->x = tx; }
+ if (success * d == prev)
+ update_log (world, ".");
+ else {
+ if (2 == success)
+ update_log (world, "\nYou hit the monster.");
+ else {
+ char * msg = calloc(25, sizeof(char));
+ char * msg_content = "You fail to move";
+ if (1 == success)
+ msg_content = "You move";
+ sprintf(msg, "\n%s %s.", msg_content, dir);
+ update_log (world, msg);
+ free(msg); } }
+ prev = success * d;
+ next_turn (world); }
-void draw_keys_window (struct Win * win) {
-// Draw keybinding window.
- struct World * world = (struct World *) win->data;
- struct KeysWinData * keyswindata = (struct KeysWinData *) world->keyswindata;
- struct KeyBinding * keybindings = world->keybindings;
- int offset = 0;
- if (keyswindata->max >= win->height) {
- if (keyswindata->select > win->height / 2)
- if (keyswindata->select < (keyswindata->max - (win->height / 2)))
- offset = keyswindata->select - (win->height / 2);
- else
- offset = keyswindata->max - win->height + 1; }
- int keydescwidth = 9; // max length assured by get_keyname()
- char * keydesc = malloc(keydescwidth + 1);
- attr_t attri;
- int y, x;
- char * keyname;
- for (y = 0; 0 != keybindings[offset + y].name && y < win->height; y++) {
- attri = 0;
- if (y == keyswindata->select - offset) {
- attri = A_REVERSE;
- if (1 == keyswindata->edit)
- attri = attri | A_BLINK; }
- keyname = get_keyname(keybindings[y + offset].key);
- snprintf(keydesc, keydescwidth + 1, "%-9s", keyname);
- free(keyname);
- for (x = 0; x < win->width; x++)
- if (strlen(keydesc) > x)
- mvwaddch(win->curses_win, y, x, keydesc[x] | attri);
- else if (strlen(keydesc) < x && x < strlen(keybindings[y + offset].name) + strlen(keydesc) + 1)
- mvwaddch(win->curses_win, y, x, keybindings[y + offset].name[x - strlen(keydesc) - 1] | attri);
- else
- mvwaddch(win->curses_win, y, x, ' ' | attri); }
- free(keydesc);
- if (y < win->height)
- for (; y < win->height; y++)
- for (x = 0; x < win->width; x++)
- mvwaddch(win->curses_win, y, x, ' '); }
+void player_wait (struct World * world) {
+// Make player wait one turn.
+ next_turn (world);
+ update_log (world, "\nYou wait."); }
-void init_keybindings(struct World * world) {
-// Initialize keybindings from file "keybindings".
- FILE * file = fopen("keybindings", "r");
- int lines = 0;
- int c = 0;
- int linemax = 0;
- int c_count = 0;
+void save_map (struct Map * map) {
+// Save map to file "map".
+ FILE * file = fopen("map", "w");
+ fputc(map->width / CHAR_MAX, file);
+ fputc(map->width % CHAR_MAX, file);
+ uint16_t y, x;
+ for (y = 0; y < map->height; y++)
+ for (x = 0; x < map->width; x++)
+ fputc(map->cells[y * map->width + x], file);
+ fclose(file); }
+
+struct Map load_map () {
+// Load map from file.
+ FILE * file = fopen("map", "r");
+ struct Map map;
+ map.width = (fgetc(file) * CHAR_MAX) + fgetc(file);
+ long pos = ftell(file);
+ int c = fgetc(file);
+ uint32_t i = 0;
while (EOF != c) {
- c_count++;
- c = getc(file);
- if ('\n' == c) {
- if (c_count > linemax)
- linemax = c_count;
- c_count = 0;
- lines++; } }
- struct KeyBinding * keybindings = malloc(lines * sizeof(struct KeyBinding));
- fseek(file, 0, SEEK_SET);
- char * command = malloc(linemax);
- char commcount = 0;
- char * digits = malloc(3);
- char digicount = 0;
- int key, digimax;
- int keycount = 0;
- c = getc(file);
+ i++;
+ c = fgetc(file); }
+ map.cells = malloc(i * sizeof(char));
+ map.height = i / map.width;
+ fseek(file, pos, SEEK_SET);
+ c = fgetc(file);
+ i = 0;
while (EOF != c) {
- if ('\n' == c) {
- keybindings[keycount].name = calloc(commcount, sizeof(char));
- memcpy(keybindings[keycount].name, command, commcount);
- keybindings[keycount].key = key;
- keycount++;
- digicount = 0;
- commcount = 0; }
- else if (-1 != digicount)
- if (' ' == c) {
- key = 0;
- digimax = digicount - 1;
- while (digicount > 0) {
- digicount--;
- key = key + ((digits[digicount] - 48) * pow(10, digimax - digicount)); }
- digicount = -1; }
- else {
- digits[digicount] = c;
- digicount++; }
- else {
- command[commcount] = c;
- commcount++; }
- c = getc(file); }
- free(command);
- free(digits);
+ map.cells[i] = (char) c;
+ c = fgetc(file);
+ i++; }
fclose(file);
- struct KeysWinData * keyswindata = malloc(sizeof(struct KeysWinData));
- keyswindata->max = lines - 1;
- keyswindata->select = 0;
- keyswindata->edit = 0;
- world->keybindings = keybindings;
- world->keyswindata = keyswindata; }
-
-void save_keybindings(struct World * world) {
-// Write keybindings to keybindings file.
- struct KeysWinData * keyswindata = (struct KeysWinData *) world->keyswindata;
- struct KeyBinding * keybindings = world->keybindings;
- FILE * file = fopen("keybindings", "w");
- int linemax = 0;
- int i;
- for (i = 0; i <= keyswindata->max; i++)
- if (strlen(keybindings[i].name) > linemax)
- linemax = strlen(keybindings[i].name);
- linemax = linemax + 6; // + 6 = + 3 digits + whitespace + newline + null byte
- char * line = malloc(linemax);
- for (i = 0; i <= keyswindata->max; i++) {
- snprintf(line, linemax, "%d %s\n", keybindings[i].key, keybindings[i].name);
- fwrite(line, sizeof(char), strlen(line), file); }
- free(line);
- fclose(file); }
+ return map; }
int main () {
struct World world;
init_keybindings(&world);
+ world.turn = 0;
+ world.log = calloc(1, sizeof(char));
+ update_log (&world, "Start!");
+ struct Map map = init_map();
+ world.map = ↦
+ struct Player player;
+ player.y = 16;
+ player.x = 16;
+ world.player = &player;
+ struct Monster monster;
+ monster.y = 16;
+ monster.x = 80;
+ world.monster = &monster;
WINDOW * screen = initscr();
noecho();
keypad(screen, TRUE);
raw();
struct WinMeta win_meta = init_win_meta(screen);
-
- struct Win win_keys = init_window(&win_meta, "Keys");
- win_keys.draw = draw_keys_window;
- win_keys.data = &world;
-
- struct Win win_map = init_window(&win_meta, "Map");
- win_map.draw = draw_map;
- struct Map map = init_map();
- win_map.data = ↦
-
- struct Win win_info = init_window(&win_meta, "Info");
- win_info.draw = draw_info;
- win_info.data = malloc(sizeof(int));
- * (int *) win_info.data = 0;
-
- struct Win win_log = init_window(&win_meta, "Log");
- win_log.draw = draw_text_from_bottom;
- win_log.data = calloc(1, sizeof(char));
- update_log (&win_log, "Start!");
+ struct Win win_keys = init_window(&win_meta, "Keys", &world, draw_keys_win);
+ struct Win win_map = init_window(&win_meta, "Map", &world, draw_map_win);
+ struct Win win_info = init_window(&win_meta, "Info", &world, draw_info_win);
+ struct Win win_log = init_window(&win_meta, "Log", &world, draw_log_win);
int key;
while (1) {
if (key == get_action_key(world.keybindings, "quit"))
break;
else if (key == get_action_key(world.keybindings, "scroll pad right"))
- win_meta.pad_offset++;
- else if (key == get_action_key(world.keybindings, "scroll pad left") && win_meta.pad_offset > 0)
- win_meta.pad_offset--;
+ scroll_pad (&win_meta, '+');
+ else if (key == get_action_key(world.keybindings, "scroll pad left"))
+ scroll_pad (&win_meta, '-');
else if (key == get_action_key(world.keybindings, "toggle keys window"))
toggle_window(&win_meta, &win_keys);
else if (key == get_action_key(world.keybindings, "toggle map window"))
toggle_window(&win_meta, &win_info);
else if (key == get_action_key(world.keybindings, "toggle log window"))
toggle_window(&win_meta, &win_log);
- else if (key == get_action_key(world.keybindings, "cycle forwards") && win_meta.active != 0)
+ else if (key == get_action_key(world.keybindings, "cycle forwards"))
cycle_active_window(&win_meta, 'n');
- else if (key == get_action_key(world.keybindings, "cycle backwards") && win_meta.active != 0)
+ else if (key == get_action_key(world.keybindings, "cycle backwards"))
cycle_active_window(&win_meta, 'p');
- else if (key == get_action_key(world.keybindings, "shift forwards") && win_meta.active != 0)
- shift_window(&win_meta, 'f');
- else if (key == get_action_key(world.keybindings, "shift backwards") && win_meta.active != 0)
- shift_window(&win_meta, 'b');
- else if (key == get_action_key(world.keybindings, "grow horizontally") && win_meta.active != 0)
- resize_window(&win_meta, '*');
- else if (key == get_action_key(world.keybindings, "shrink horizontally") && win_meta.active != 0)
- resize_window(&win_meta, '_');
- else if (key == get_action_key(world.keybindings, "grow vertically") && win_meta.active != 0)
- resize_window(&win_meta, '+');
- else if (key == get_action_key(world.keybindings, "shrink vertically") && win_meta.active != 0)
- resize_window(&win_meta, '-');
+ else if (key == get_action_key(world.keybindings, "shift forwards"))
+ shift_active_window(&win_meta, 'f');
+ else if (key == get_action_key(world.keybindings, "shift backwards"))
+ shift_active_window(&win_meta, 'b');
+ else if (key == get_action_key(world.keybindings, "grow horizontally"))
+ growshrink_active_window(&win_meta, '*');
+ else if (key == get_action_key(world.keybindings, "shrink horizontally"))
+ growshrink_active_window(&win_meta, '_');
+ else if (key == get_action_key(world.keybindings, "grow vertically"))
+ growshrink_active_window(&win_meta, '+');
+ else if (key == get_action_key(world.keybindings, "shrink vertically"))
+ growshrink_active_window(&win_meta, '-');
else if (key == get_action_key(world.keybindings, "save keys"))
save_keybindings(&world);
- else if (key == get_action_key(world.keybindings, "keys nav up") && world.keyswindata->select > 0)
- world.keyswindata->select--;
- else if (key == get_action_key(world.keybindings, "keys nav down") && world.keyswindata->select < world.keyswindata->max)
- world.keyswindata->select++;
- else if (key == get_action_key(world.keybindings, "keys mod")) {
- world.keyswindata->edit = 1;
- draw_all_windows (&win_meta);
- key = getch();
- if (key < 1000) // ensure maximum of three digits in key code field
- world.keybindings[world.keyswindata->select].key = key;
- world.keyswindata->edit = 0; }
- else if (key == get_action_key(world.keybindings, "map up") && map.offset_y > 0)
- map.offset_y--;
+ else if (key == get_action_key(world.keybindings, "keys nav up"))
+ keyswin_move_selection (&world, 'u');
+ else if (key == get_action_key(world.keybindings, "keys nav down"))
+ keyswin_move_selection (&world, 'd');
+ else if (key == get_action_key(world.keybindings, "keys mod"))
+ keyswin_mod_key (&world, &win_meta);
+ else if (key == get_action_key(world.keybindings, "load map"))
+ map = load_map();
+ else if (key == get_action_key(world.keybindings, "save map"))
+ save_map(&map);
+ else if (key == get_action_key(world.keybindings, "map up"))
+ map_scroll (&map, 'n');
else if (key == get_action_key(world.keybindings, "map down"))
- map.offset_y++;
+ map_scroll (&map, 's');
else if (key == get_action_key(world.keybindings, "map right"))
- map.offset_x++;
- else if (key == get_action_key(world.keybindings, "map left") && map.offset_x > 0)
- map.offset_x--;
- else if (key == get_action_key(world.keybindings, "player down") && map.player_y < map.height - 1) {
- update_info (&win_info);
- update_log (&win_log, "\nYou move south.");
- map.player_y++; }
- else if (key == get_action_key(world.keybindings, "player up") && map.player_y > 0) {
- update_info (&win_info);
- update_log (&win_log, "\nYou move north.");
- map.player_y--; }
- else if (key == get_action_key(world.keybindings, "player right") && map.player_x < map.width - 1) {
- update_info (&win_info);
- update_log (&win_log, "\nYou move east.");
- map.player_x++; }
- else if (key == get_action_key(world.keybindings, "player left") && map.player_x > 0) {
- update_info (&win_info);
- update_log (&win_log, "\nYou move west.");
- map.player_x--; }
- else if (key == get_action_key(world.keybindings, "wait") ) {
- update_info (&win_info);
- update_log (&win_log, "\nYou wait."); } }
+ map_scroll (&map, 'e');
+ else if (key == get_action_key(world.keybindings, "map left"))
+ map_scroll (&map, 'w');
+ else if (key == get_action_key(world.keybindings, "player down"))
+ move_player(&world, 's');
+ else if (key == get_action_key(world.keybindings, "player up"))
+ move_player(&world, 'n');
+ else if (key == get_action_key(world.keybindings, "player right"))
+ move_player(&world, 'e');
+ else if (key == get_action_key(world.keybindings, "player left"))
+ move_player(&world, 'w');
+ else if (key == get_action_key(world.keybindings, "wait") )
+ player_wait (&world); }
+
+ free(map.cells);
+ for (key = 0; key <= world.keyswindata->max; key++)
+ free(world.keybindings[key].name);
+ free(world.keybindings);
+ free(world.keyswindata);
+ free(world.log);
endwin();
return 0; }