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.
36 for (y = start_y; y < win->height; y++) {
39 for (x = 0; x < win->width; x++) {
42 if ('\n' == text[z]) {
43 mvwaddch(win->curses_win, y, x, ' ');
47 mvwaddch(win->curses_win, y, x, text[z]);
48 if ('\n' == text[z+1]) {
51 else if (0 == text[z+1]) {
55 mvwaddch(win->curses_win, y, x, ' '); } } }
57 void draw_text_from_bottom (struct Win * win) {
58 // Draw text in win->data from end/bottom to the top.
59 char * text = (char *) win->data;
63 for (y = 0; 0 == toggle; y++) // Determine number of lines text would have in a window of
64 for (x = 0; x < win->width; x++) { // available width, but infinite height.
66 if ('\n' == text[z]) // Treat \n and \0 as control characters for incrementing y and
67 break; // stopping the loop. Make sure they don't count as cell space
68 if ('\n' == text[z+1]) { // themselves.
71 else if (0 == text[z+1]) {
76 if (y < win->height) { // Depending on what is bigger, determine start point in window or in text.
77 start_y = win->height - y;
78 for (y = 0; y < start_y; y++)
79 for (x = 0; x < win->width; x++)
80 mvwaddch(win->curses_win, y, x, ' '); }
81 else if (y > win->height) {
82 offset = y - win->height;
83 for (y = 0; y < offset; y++)
84 for (x = 0; x < win->width; x++) {
88 if ('\n' == text[z+1]) {
91 text = text + (sizeof(char) * (z + 1)); }
92 draw_with_linebreaks(win, text, start_y); }
94 void draw_map (struct Win * win) {
95 // Draw map determined by win->data Map struct into window. Respect offset.
96 struct Map map = * (struct Map *) win->data;
97 char * cells = map.cells;
98 int width_map_av = map.width - map.offset_x;
99 int height_map_av = map.height - map.offset_y;
101 for (y = 0; y < win->height; y++) {
102 z = map.offset_x + (map.offset_y + y) * (map.width);
103 for (x = 0; x < win->width; x++) {
104 if (y < height_map_av && x < width_map_av) {
105 if (z == (map.width * map.player_y) + map.player_x)
106 mvwaddch(win->curses_win, y, x, '@');
108 mvwaddch(win->curses_win, y, x, cells[z]);
111 mvwaddch(win->curses_win, y, x, ' '); } } }
113 void draw_info (struct Win * win) {
114 // Draw info window by appending win->data integer value to "Turn: " display.
115 int count = * (int *) win->data;
117 snprintf(text, 100, "Turn: %d", count);
118 draw_with_linebreaks(win, text, 0); }
120 void toggle_window (struct WinMeta * win_meta, struct Win * win) {
121 // Toggle display of window win.
122 if (0 != win->curses_win)
123 suspend_window(win_meta, win);
125 append_window(win_meta, win); }
127 struct Map init_map () {
128 // Initialize map with some experimental start values.
136 map.cells = malloc(map.width * map.height);
138 for (y = 0; y < map.height; y++)
139 for (x = 0; x < map.width; x++)
140 map.cells[(y * map.width) + x] = '.';
141 map.cells[(5 * map.width) + 5] = 'X';
142 map.cells[(3 * map.width) + 8] = 'X';
143 map.cells[(8 * map.width) + 3] = 'X';
146 void update_info (struct Win * win) {
147 // Update info data by incrementing turn value.
148 * (int *) win->data = * (int *) win->data + 1; }
150 void update_log (struct Win * win, char * text) {
151 // Update log with new text to be appended.
153 int len_old = strlen(win->data);
154 int len_new = strlen(text);
155 int len_whole = len_old + len_new + 1;
156 new_text = calloc(len_whole, sizeof(char));
157 memcpy(new_text, win->data, len_old);
158 memcpy(new_text + len_old, text, len_new);
160 win->data = new_text; }
162 int get_action_key (struct KeyBinding * keybindings, char * name) {
163 // Return key matching name in keybindings.
165 while (strcmp(keybindings[i].name, name) )
167 return keybindings[i].key; }
169 char * get_keyname(int keycode) {
170 // Translate some keycodes to readable names of max 9 chars.
172 keyname = malloc(15);
173 if (32 < keycode && keycode < 127)
174 sprintf(keyname, "%c", keycode);
175 else if (keycode == 9)
176 sprintf(keyname, "TAB");
177 else if (keycode == 10)
178 sprintf(keyname, "RETURN");
179 else if (keycode == 27)
180 sprintf(keyname, "ESCAPE");
181 else if (keycode == 32)
182 sprintf(keyname, "SPACE");
183 else if (keycode == KEY_UP)
184 sprintf(keyname, "UP");
185 else if (keycode == KEY_DOWN)
186 sprintf(keyname, "DOWN");
187 else if (keycode == KEY_LEFT)
188 sprintf(keyname, "LEFT");
189 else if (keycode == KEY_RIGHT)
190 sprintf(keyname, "RIGHT");
191 else if (keycode == KEY_HOME)
192 sprintf(keyname, "HOME");
193 else if (keycode == KEY_BACKSPACE)
194 sprintf(keyname, "BACKSPACE");
195 else if (keycode >= KEY_F0 && keycode <= KEY_F(63)) {
196 int f = keycode - KEY_F0;
197 sprintf(keyname, "F%d", f); }
198 else if (keycode == KEY_DC)
199 sprintf(keyname, "DELETE");
200 else if (keycode == KEY_IC)
201 sprintf(keyname, "INSERT");
202 else if (keycode == KEY_NPAGE)
203 sprintf(keyname, "NEXT PAGE");
204 else if (keycode == KEY_PPAGE)
205 sprintf(keyname, "PREV PAGE");
206 else if (keycode == KEY_END)
207 sprintf(keyname, "END");
209 sprintf(keyname, "(unknown)");
212 void draw_keys_window (struct Win * win) {
213 // Draw keybinding window.
214 struct World * world = (struct World *) win->data;
215 struct KeysWinData * keyswindata = (struct KeysWinData *) world->keyswindata;
216 struct KeyBinding * keybindings = world->keybindings;
218 if (keyswindata->max >= win->height) {
219 if (keyswindata->select > win->height / 2)
220 if (keyswindata->select < (keyswindata->max - (win->height / 2)))
221 offset = keyswindata->select - (win->height / 2);
223 offset = keyswindata->max - win->height + 1; }
224 int keydescwidth = 9; // max length assured by get_keyname()
225 char * keydesc = malloc(keydescwidth + 1);
229 for (y = 0; 0 != keybindings[offset + y].name && y < win->height; y++) {
231 if (y == keyswindata->select - offset) {
233 if (1 == keyswindata->edit)
234 attri = attri | A_BLINK; }
235 keyname = get_keyname(keybindings[y + offset].key);
236 snprintf(keydesc, keydescwidth + 1, "%-9s", keyname);
238 for (x = 0; x < win->width; x++)
239 if (strlen(keydesc) > x)
240 mvwaddch(win->curses_win, y, x, keydesc[x] | attri);
241 else if (strlen(keydesc) < x && x < strlen(keybindings[y + offset].name) + strlen(keydesc) + 1)
242 mvwaddch(win->curses_win, y, x, keybindings[y + offset].name[x - strlen(keydesc) - 1] | attri);
244 mvwaddch(win->curses_win, y, x, ' ' | attri); }
247 for (; y < win->height; y++)
248 for (x = 0; x < win->width; x++)
249 mvwaddch(win->curses_win, y, x, ' '); }
251 void init_keybindings(struct World * world) {
252 // Initialize keybindings from file "keybindings".
253 FILE * file = fopen("keybindings", "r");
262 if (c_count > linemax)
266 struct KeyBinding * keybindings = malloc(lines * sizeof(struct KeyBinding));
267 fseek(file, 0, SEEK_SET);
268 char * command = malloc(linemax);
270 char * digits = malloc(3);
277 keybindings[keycount].name = calloc(commcount, sizeof(char));
278 memcpy(keybindings[keycount].name, command, commcount);
279 keybindings[keycount].key = key;
283 else if (-1 != digicount)
286 digimax = digicount - 1;
287 while (digicount > 0) {
289 key = key + ((digits[digicount] - 48) * pow(10, digimax - digicount)); }
292 digits[digicount] = c;
295 command[commcount] = c;
301 struct KeysWinData * keyswindata = malloc(sizeof(struct KeysWinData));
302 keyswindata->max = lines - 1;
303 keyswindata->select = 0;
304 keyswindata->edit = 0;
305 world->keybindings = keybindings;
306 world->keyswindata = keyswindata; }
308 void save_keybindings(struct World * world) {
309 // Write keybindings to keybindings file.
310 struct KeysWinData * keyswindata = (struct KeysWinData *) world->keyswindata;
311 struct KeyBinding * keybindings = world->keybindings;
312 FILE * file = fopen("keybindings", "w");
315 for (i = 0; i <= keyswindata->max; i++)
316 if (strlen(keybindings[i].name) > linemax)
317 linemax = strlen(keybindings[i].name);
318 linemax = linemax + 6; // + 6 = + 3 digits + whitespace + newline + null byte
319 char * line = malloc(linemax);
320 for (i = 0; i <= keyswindata->max; i++) {
321 snprintf(line, linemax, "%d %s\n", keybindings[i].key, keybindings[i].name);
322 fwrite(line, sizeof(char), strlen(line), file); }
328 init_keybindings(&world);
330 WINDOW * screen = initscr();
333 keypad(screen, TRUE);
335 struct WinMeta win_meta = init_win_meta(screen);
337 struct Win win_keys = init_window(&win_meta, "Keys");
338 win_keys.draw = draw_keys_window;
339 win_keys.data = &world;
341 struct Win win_map = init_window(&win_meta, "Map");
342 win_map.draw = draw_map;
343 struct Map map = init_map();
346 struct Win win_info = init_window(&win_meta, "Info");
347 win_info.draw = draw_info;
348 win_info.data = malloc(sizeof(int));
349 * (int *) win_info.data = 0;
351 struct Win win_log = init_window(&win_meta, "Log");
352 win_log.draw = draw_text_from_bottom;
353 win_log.data = calloc(1, sizeof(char));
354 update_log (&win_log, "Start!");
358 draw_all_windows (&win_meta);
360 if (key == get_action_key(world.keybindings, "quit"))
362 else if (key == get_action_key(world.keybindings, "scroll pad right"))
363 win_meta.pad_offset++;
364 else if (key == get_action_key(world.keybindings, "scroll pad left") && win_meta.pad_offset > 0)
365 win_meta.pad_offset--;
366 else if (key == get_action_key(world.keybindings, "toggle keys window"))
367 toggle_window(&win_meta, &win_keys);
368 else if (key == get_action_key(world.keybindings, "toggle map window"))
369 toggle_window(&win_meta, &win_map);
370 else if (key == get_action_key(world.keybindings, "toggle info window"))
371 toggle_window(&win_meta, &win_info);
372 else if (key == get_action_key(world.keybindings, "toggle log window"))
373 toggle_window(&win_meta, &win_log);
374 else if (key == get_action_key(world.keybindings, "cycle forwards") && win_meta.active != 0)
375 cycle_active_window(&win_meta, 'n');
376 else if (key == get_action_key(world.keybindings, "cycle backwards") && win_meta.active != 0)
377 cycle_active_window(&win_meta, 'p');
378 else if (key == get_action_key(world.keybindings, "shift forwards") && win_meta.active != 0)
379 shift_window(&win_meta, 'f');
380 else if (key == get_action_key(world.keybindings, "shift backwards") && win_meta.active != 0)
381 shift_window(&win_meta, 'b');
382 else if (key == get_action_key(world.keybindings, "grow hor") && win_meta.active != 0)
383 resize_window(&win_meta, '*');
384 else if (key == get_action_key(world.keybindings, "shrink hor") && win_meta.active != 0)
385 resize_window(&win_meta, '_');
386 else if (key == get_action_key(world.keybindings, "grow ver") && win_meta.active != 0)
387 resize_window(&win_meta, '+');
388 else if (key == get_action_key(world.keybindings, "shrink ver") && win_meta.active != 0)
389 resize_window(&win_meta, '-');
390 else if (key == get_action_key(world.keybindings, "save keys"))
391 save_keybindings(&world);
392 else if (key == get_action_key(world.keybindings, "keys nav up") && world.keyswindata->select > 0)
393 world.keyswindata->select--;
394 else if (key == get_action_key(world.keybindings, "keys nav down") && world.keyswindata->select < world.keyswindata->max)
395 world.keyswindata->select++;
396 else if (key == get_action_key(world.keybindings, "keys mod")) {
397 world.keyswindata->edit = 1;
398 draw_all_windows (&win_meta);
400 if (key < 1000) // ensure maximum of three digits in key code field
401 world.keybindings[world.keyswindata->select].key = key;
402 world.keyswindata->edit = 0; }
403 else if (key == get_action_key(world.keybindings, "map up") && map.offset_y > 0)
405 else if (key == get_action_key(world.keybindings, "map down"))
407 else if (key == get_action_key(world.keybindings, "map right"))
409 else if (key == get_action_key(world.keybindings, "map left") && map.offset_x > 0)
411 else if (key == get_action_key(world.keybindings, "player down") && map.player_y < map.height - 1) {
412 update_info (&win_info);
413 update_log (&win_log, "\nYou move south.");
415 else if (key == get_action_key(world.keybindings, "player up") && map.player_y > 0) {
416 update_info (&win_info);
417 update_log (&win_log, "\nYou move north.");
419 else if (key == get_action_key(world.keybindings, "player right") && map.player_x < map.width - 1) {
420 update_info (&win_info);
421 update_log (&win_log, "\nYou move east.");
423 else if (key == get_action_key(world.keybindings, "player left") && map.player_x > 0) {
424 update_info (&win_info);
425 update_log (&win_log, "\nYou move west.");
427 else if (key == get_action_key(world.keybindings, "wait") ) {
428 update_info (&win_info);
429 update_log (&win_log, "\nYou wait."); } }