27 struct KeyBinding * keybindings;
28 struct KeysWinData * keyswindata; };
30 void draw_with_linebreaks (struct Win * win, char * text, int start_y) {
31 // Write text into window content space. Start on row start_y. Fill unused rows with whitespace.
34 int height_av = win->height - 1;
35 int width_av = win->width - 1;
38 for (y = start_y; y < height_av; y++) {
41 for (x = 0; x < width_av; x++) {
44 if ('\n' == text[z]) {
45 mvwaddch(win->curses_win, y+1, x+win->border_left, ' ');
49 mvwaddch(win->curses_win, y+1, x+win->border_left, text[z]);
50 if ('\n' == text[z+1]) {
53 else if (0 == text[z+1]) {
57 mvwaddch(win->curses_win, y+1, x+win->border_left, ' '); } } }
59 void draw_text_from_bottom (struct Win * win) {
60 // Draw text in win->data from end/bottom to the top.
61 char * text = (char *) win->data;
62 int width_av = win->width - 1;
63 int height_av = win->height - 1;
67 for (y = 0; 0 == toggle; y++) // Determine number of lines text would have in a window of available
68 for (x = 0; x < width_av; x++) { // width, but infinite height.
70 if ('\n' == text[z]) // Treat \n and \0 as control characters for incrementing y and
71 break; // stopping the loop. Make sure they don't count as cell space
72 if ('\n' == text[z+1]) { // themselves.
75 else if (0 == text[z+1]) {
80 if (y < height_av) { // Depending on what is bigger, determine start point in window or in text.
81 start_y = height_av - y;
82 for (y = 0; y < start_y; y++)
83 for (x = 0; x < width_av; x++)
84 mvwaddch(win->curses_win, y+1, x+win->border_left, ' '); }
85 else if (y > height_av) {
86 offset = y - height_av;
87 for (y = 0; y < offset; y++)
88 for (x = 0; x < width_av; x++) {
92 if ('\n' == text[z+1]) {
95 text = text + (sizeof(char) * (z + 1)); }
96 draw_with_linebreaks(win, text, start_y); }
98 void draw_map (struct Win * win) {
99 // Draw map determined by win->data Map struct into window. Respect offset.
100 int height_av = win->height - 1;
101 int width_av = win->width - 1;
102 struct Map map = * (struct Map *) win->data;
103 char * cells = map.cells;
104 int width_map_av = map.width - map.offset_x;
105 int height_map_av = map.height - map.offset_y;
107 for (y = 0; y < height_av; y++) {
108 z = map.offset_x + (map.offset_y + y) * (map.width);
109 for (x = 0; x < width_av; x++) {
110 if (y < height_map_av && x < width_map_av) {
111 if (z == (map.width * map.player_y) + map.player_x)
112 mvwaddch(win->curses_win, y+1, x+win->border_left, '@');
114 mvwaddch(win->curses_win, y+1, x+win->border_left, cells[z]);
117 mvwaddch(win->curses_win, y+1, x+win->border_left, ' '); } } }
119 void draw_info (struct Win * win) {
120 // Draw info window by appending win->data integer value to "Turn: " display.
121 int count = * (int *) win->data;
123 snprintf(text, 100, "Turn: %d", count);
124 draw_with_linebreaks(win, text, 0); }
126 void toggle_window (struct WinMeta * win_meta, struct Win * win) {
127 // Toggle display of window win.
128 if (0 != win->curses_win)
129 suspend_window(win_meta, win);
131 append_window(win_meta, win); }
133 struct Map init_map () {
134 // Initialize map with some experimental start values.
142 map.cells = malloc(map.width * map.height);
144 for (y = 0; y < map.height; y++)
145 for (x = 0; x < map.width; x++)
146 map.cells[(y * map.width) + x] = '.';
147 map.cells[(5 * map.width) + 5] = 'X';
148 map.cells[(3 * map.width) + 8] = 'X';
149 map.cells[(8 * map.width) + 3] = 'X';
152 void update_info (struct Win * win) {
153 // Update info data by incrementing turn value.
154 * (int *) win->data = * (int *) win->data + 1; }
156 void update_log (struct Win * win, char * text) {
157 // Update log with new text to be appended.
159 int len_old = strlen(win->data);
160 int len_new = strlen(text);
161 int len_whole = len_old + len_new + 1;
162 new_text = calloc(len_whole, sizeof(char));
163 memcpy(new_text, win->data, len_old);
164 memcpy(new_text + len_old, text, len_new);
166 win->data = new_text; }
168 int get_action_key (struct KeyBinding * keybindings, char * name) {
169 // Return key matching name in keybindings.
171 while (strcmp(keybindings[i].name, name) )
173 return keybindings[i].key; }
175 char * get_keyname(int keycode) {
176 // Translate some keycodes to readable names of max 9 chars.
178 keyname = malloc(15);
179 if (32 < keycode && keycode < 127)
180 sprintf(keyname, "%c", keycode);
181 else if (keycode == 9)
182 sprintf(keyname, "TAB");
183 else if (keycode == 10)
184 sprintf(keyname, "RETURN");
185 else if (keycode == 27)
186 sprintf(keyname, "ESCAPE");
187 else if (keycode == 32)
188 sprintf(keyname, "SPACE");
189 else if (keycode == KEY_UP)
190 sprintf(keyname, "UP");
191 else if (keycode == KEY_DOWN)
192 sprintf(keyname, "DOWN");
193 else if (keycode == KEY_LEFT)
194 sprintf(keyname, "LEFT");
195 else if (keycode == KEY_RIGHT)
196 sprintf(keyname, "RIGHT");
197 else if (keycode == KEY_HOME)
198 sprintf(keyname, "HOME");
199 else if (keycode == KEY_BACKSPACE)
200 sprintf(keyname, "BACKSPACE");
201 else if (keycode >= KEY_F0 && keycode <= KEY_F(63)) {
202 int f = keycode - KEY_F0;
203 sprintf(keyname, "F%d", f); }
204 else if (keycode == KEY_DC)
205 sprintf(keyname, "DELETE");
206 else if (keycode == KEY_IC)
207 sprintf(keyname, "INSERT");
208 else if (keycode == KEY_NPAGE)
209 sprintf(keyname, "NEXT PAGE");
210 else if (keycode == KEY_PPAGE)
211 sprintf(keyname, "PREV PAGE");
212 else if (keycode == KEY_END)
213 sprintf(keyname, "END");
215 sprintf(keyname, "(unknown)");
218 void draw_keys_window (struct Win * win) {
219 // Draw keybinding window.
220 struct World * world = (struct World *) win->data;
221 struct KeysWinData * keyswindata = (struct KeysWinData *) world->keyswindata;
222 struct KeyBinding * keybindings = world->keybindings;
223 int height_av = win->height - 1;
224 int width_av = win->width - 1;
226 if (keyswindata->max >= height_av) {
227 if (keyswindata->select > height_av / 2)
228 if (keyswindata->select < (keyswindata->max - (height_av / 2)))
229 offset = keyswindata->select - (height_av / 2);
231 offset = keyswindata->max - height_av + 1; }
232 int keydescwidth = 9; // max length assured by get_keyname()
233 char * keydesc = malloc(keydescwidth + 1);
237 for (y = 0; 0 != keybindings[offset + y].name && y < height_av; y++) {
239 if (y == keyswindata->select - offset) {
241 if (1 == keyswindata->edit)
242 attri = attri | A_BLINK; }
243 keyname = get_keyname(keybindings[y + offset].key);
244 snprintf(keydesc, keydescwidth + 1, "%-9s", keyname);
246 for (x = 0; x < width_av; x++)
247 if (strlen(keydesc) > x)
248 mvwaddch(win->curses_win, y + 1, x + win->border_left, keydesc[x] | attri);
249 else if (strlen(keydesc) < x && x < strlen(keybindings[y + offset].name) + strlen(keydesc) + 1)
250 mvwaddch(win->curses_win, y + 1, x + win->border_left, keybindings[y + offset].name[x - strlen(keydesc) - 1] | attri);
252 mvwaddch(win->curses_win, y + 1, x + win->border_left, ' ' | attri); }
255 for (; y < height_av; y++)
256 for (x = 0; x < width_av; x++)
257 mvwaddch(win->curses_win, y + 1, x + win->border_left, ' '); }
259 void init_keybindings(struct World * world) {
260 // Initialize keybindings from file "keybindings".
261 FILE * file = fopen("keybindings", "r");
270 if (c_count > linemax)
274 struct KeyBinding * keybindings = malloc(lines * sizeof(struct KeyBinding));
275 fseek(file, 0, SEEK_SET);
276 char * command = malloc(linemax);
278 char * digits = malloc(3);
285 keybindings[keycount].name = calloc(commcount, sizeof(char));
286 memcpy(keybindings[keycount].name, command, commcount);
287 keybindings[keycount].key = key;
291 else if (-1 != digicount)
294 digimax = digicount - 1;
295 while (digicount > 0) {
297 key = key + ((digits[digicount] - 48) * pow(10, digimax - digicount)); }
300 digits[digicount] = c;
303 command[commcount] = c;
309 struct KeysWinData * keyswindata = malloc(sizeof(struct KeysWinData));
310 keyswindata->max = lines - 1;
311 keyswindata->select = 0;
312 keyswindata->edit = 0;
313 world->keybindings = keybindings;
314 world->keyswindata = keyswindata; }
316 void save_keybindings(struct World * world) {
317 // Write keybindings to keybindings file.
318 struct KeysWinData * keyswindata = (struct KeysWinData *) world->keyswindata;
319 struct KeyBinding * keybindings = world->keybindings;
320 FILE * file = fopen("keybindings", "w");
323 for (i = 0; i <= keyswindata->max; i++)
324 if (strlen(keybindings[i].name) > linemax)
325 linemax = strlen(keybindings[i].name);
326 linemax = linemax + 6; // + 6 = + 3 digits + whitespace + newline + null byte
327 char * line = malloc(linemax);
328 for (i = 0; i <= keyswindata->max; i++) {
329 snprintf(line, linemax, "%d %s\n", keybindings[i].key, keybindings[i].name);
330 fwrite(line, sizeof(char), strlen(line), file); }
336 init_keybindings(&world);
338 WINDOW * screen = initscr();
341 keypad(screen, TRUE);
344 struct WinMeta win_meta = init_win_meta(screen);
346 struct Win win_keys = init_window(&win_meta, "Keys");
347 win_keys.draw = draw_keys_window;
348 win_keys.data = &world;
350 struct Win win_map = init_window(&win_meta, "Map");
351 win_map.draw = draw_map;
352 struct Map map = init_map();
355 struct Win win_info = init_window(&win_meta, "Info");
356 win_info.draw = draw_info;
357 win_info.data = malloc(sizeof(int));
358 * (int *) win_info.data = 0;
360 struct Win win_log = init_window(&win_meta, "Log");
361 win_log.draw = draw_text_from_bottom;
362 win_log.data = calloc(1, sizeof(char));
363 update_log (&win_log, "Start!");
367 draw_all_windows (&win_meta);
369 if (key == get_action_key(world.keybindings, "quit"))
371 else if (key == get_action_key(world.keybindings, "toggle keys window"))
372 toggle_window(&win_meta, &win_keys);
373 else if (key == get_action_key(world.keybindings, "toggle map window"))
374 toggle_window(&win_meta, &win_map);
375 else if (key == get_action_key(world.keybindings, "toggle info window"))
376 toggle_window(&win_meta, &win_info);
377 else if (key == get_action_key(world.keybindings, "toggle log window"))
378 toggle_window(&win_meta, &win_log);
379 else if (key == get_action_key(world.keybindings, "cycle forwards") && win_meta.active != 0)
380 cycle_active_window(&win_meta, 'n');
381 else if (key == get_action_key(world.keybindings, "cycle backwards") && win_meta.active != 0)
382 cycle_active_window(&win_meta, 'p');
383 else if (key == get_action_key(world.keybindings, "shift forwards") && win_meta.active != 0)
384 shift_window(&win_meta, 'f');
385 else if (key == get_action_key(world.keybindings, "shift backwards") && win_meta.active != 0)
386 shift_window(&win_meta, 'b');
387 else if (key == get_action_key(world.keybindings, "grow hor") && win_meta.active != 0)
388 resize_window(&win_meta, '*');
389 else if (key == get_action_key(world.keybindings, "shrink hor") && win_meta.active != 0)
390 resize_window(&win_meta, '_');
391 else if (key == get_action_key(world.keybindings, "grow ver") && win_meta.active != 0)
392 resize_window(&win_meta, '+');
393 else if (key == get_action_key(world.keybindings, "shrink ver") && win_meta.active != 0)
394 resize_window(&win_meta, '-');
395 else if (key == get_action_key(world.keybindings, "save keys"))
396 save_keybindings(&world);
397 else if (key == get_action_key(world.keybindings, "keys nav up") && world.keyswindata->select > 0) {
398 world.keyswindata->select--;
399 draw_all_windows (&win_meta); }
400 else if (key == get_action_key(world.keybindings, "keys nav down") && world.keyswindata->select < world.keyswindata->max)
401 world.keyswindata->select++;
402 else if (key == get_action_key(world.keybindings, "keys mod")) {
403 world.keyswindata->edit = 1;
404 draw_all_windows (&win_meta);
406 if (key < 1000) // ensure maximum of three digits in key code field
407 world.keybindings[world.keyswindata->select].key = key;
408 world.keyswindata->edit = 0; }
409 else if (key == get_action_key(world.keybindings, "map up") && map.offset_y > 0)
411 else if (key == get_action_key(world.keybindings, "map down"))
413 else if (key == get_action_key(world.keybindings, "map right"))
415 else if (key == get_action_key(world.keybindings, "map left") && map.offset_x > 0)
417 else if (key == get_action_key(world.keybindings, "player down") && map.player_y < map.height - 1) {
418 update_info (&win_info);
419 update_log (&win_log, "\nYou move south.");
421 else if (key == get_action_key(world.keybindings, "player up") && map.player_y > 0) {
422 update_info (&win_info);
423 update_log (&win_log, "\nYou move north.");
425 else if (key == get_action_key(world.keybindings, "player right") && map.player_x < map.width - 1) {
426 update_info (&win_info);
427 update_log (&win_log, "\nYou move east.");
429 else if (key == get_action_key(world.keybindings, "player left") && map.player_x > 0) {
430 update_info (&win_info);
431 update_log (&win_log, "\nYou move west.");
433 else if (key == get_action_key(world.keybindings, "wait") ) {
434 update_info (&win_info);
435 update_log (&win_log, "\nYou wait."); } }