28 struct KeyBinding * keybindings;
29 struct KeysWinData * keyswindata; };
31 void draw_with_linebreaks (struct Win * win, char * text, int start_y) {
32 // Write text into window content space. Start on row start_y. Fill unused rows with whitespace.
37 for (y = start_y; y < win->height; y++) {
40 for (x = 0; x < win->width; x++) {
43 if ('\n' == text[z]) {
47 mvwaddch(win->curses_win, y, x, text[z]);
48 if ('\n' == text[z+1]) {
51 else if (0 == text[z+1]) {
55 void draw_text_from_bottom (struct Win * win) {
56 // Draw text in win->data from end/bottom to the top.
57 char * text = (char *) win->data;
61 for (y = 0; 0 == toggle; y++) // Determine number of lines text would have in a window of
62 for (x = 0; x < win->width; x++) { // available width, but infinite height.
64 if ('\n' == text[z]) // Treat \n and \0 as control characters for incrementing y and
65 break; // stopping the loop. Make sure they don't count as cell space
66 if ('\n' == text[z+1]) { // themselves.
69 else if (0 == text[z+1]) {
74 if (y < win->height) // Depending on what is bigger, determine start point in window or in text.
75 start_y = win->height - y;
76 else if (y > win->height) {
77 offset = y - win->height;
78 for (y = 0; y < offset; y++)
79 for (x = 0; x < win->width; x++) {
83 if ('\n' == text[z+1]) {
86 text = text + (sizeof(char) * (z + 1)); }
87 draw_with_linebreaks(win, text, start_y); }
89 void draw_map (struct Win * win) {
90 // Draw map determined by win->data Map struct into window. Respect offset.
91 struct Map map = * (struct Map *) win->data;
92 char * cells = map.cells;
93 int width_map_av = map.width - map.offset_x;
94 int height_map_av = map.height - map.offset_y;
96 for (y = 0; y < win->height; y++) {
97 z = map.offset_x + (map.offset_y + y) * (map.width);
98 for (x = 0; x < win->width; x++) {
99 if (y < height_map_av && x < width_map_av) {
100 if (z == (map.width * map.player_y) + map.player_x)
101 mvwaddch(win->curses_win, y, x, '@');
103 mvwaddch(win->curses_win, y, x, cells[z]);
106 void draw_info (struct Win * win) {
107 // Draw info window by appending win->data integer value to "Turn: " display.
108 struct World world = * (struct World *) win->data;
109 int count = world.turn;
111 snprintf(text, 100, "Turn: %d", count);
112 draw_with_linebreaks(win, text, 0); }
114 void toggle_window (struct WinMeta * win_meta, struct Win * win) {
115 // Toggle display of window win.
116 if (0 != win->curses_win)
117 suspend_window(win_meta, win);
119 append_window(win_meta, win); }
121 struct Map init_map () {
122 // Initialize map with some experimental start values.
130 map.cells = malloc(map.width * map.height);
132 for (y = 0; y < map.height; y++)
133 for (x = 0; x < map.width; x++)
134 map.cells[(y * map.width) + x] = '.';
135 map.cells[(5 * map.width) + 5] = 'X';
136 map.cells[(3 * map.width) + 8] = 'X';
137 map.cells[(8 * map.width) + 3] = 'X';
140 void update_info (struct World * world) {
141 // Update info data by incrementing turn value.
144 void update_log (struct Win * win, char * text) {
145 // Update log with new text to be appended.
147 int len_old = strlen(win->data);
148 int len_new = strlen(text);
149 int len_whole = len_old + len_new + 1;
150 new_text = calloc(len_whole, sizeof(char));
151 memcpy(new_text, win->data, len_old);
152 memcpy(new_text + len_old, text, len_new);
154 win->data = new_text; }
156 int get_action_key (struct KeyBinding * keybindings, char * name) {
157 // Return key matching name in keybindings.
159 while (strcmp(keybindings[i].name, name) )
161 return keybindings[i].key; }
163 char * get_keyname(int keycode) {
164 // Translate some keycodes to readable names of max 9 chars.
166 keyname = malloc(15);
167 if (32 < keycode && keycode < 127)
168 sprintf(keyname, "%c", keycode);
169 else if (keycode == 9)
170 sprintf(keyname, "TAB");
171 else if (keycode == 10)
172 sprintf(keyname, "RETURN");
173 else if (keycode == 27)
174 sprintf(keyname, "ESCAPE");
175 else if (keycode == 32)
176 sprintf(keyname, "SPACE");
177 else if (keycode == KEY_UP)
178 sprintf(keyname, "UP");
179 else if (keycode == KEY_DOWN)
180 sprintf(keyname, "DOWN");
181 else if (keycode == KEY_LEFT)
182 sprintf(keyname, "LEFT");
183 else if (keycode == KEY_RIGHT)
184 sprintf(keyname, "RIGHT");
185 else if (keycode == KEY_HOME)
186 sprintf(keyname, "HOME");
187 else if (keycode == KEY_BACKSPACE)
188 sprintf(keyname, "BACKSPACE");
189 else if (keycode >= KEY_F0 && keycode <= KEY_F(63)) {
190 int f = keycode - KEY_F0;
191 sprintf(keyname, "F%d", f); }
192 else if (keycode == KEY_DC)
193 sprintf(keyname, "DELETE");
194 else if (keycode == KEY_IC)
195 sprintf(keyname, "INSERT");
196 else if (keycode == KEY_NPAGE)
197 sprintf(keyname, "NEXT PAGE");
198 else if (keycode == KEY_PPAGE)
199 sprintf(keyname, "PREV PAGE");
200 else if (keycode == KEY_END)
201 sprintf(keyname, "END");
203 sprintf(keyname, "(unknown)");
206 void draw_keys_window (struct Win * win) {
207 // Draw keybinding window.
208 struct World * world = (struct World *) win->data;
209 struct KeysWinData * keyswindata = (struct KeysWinData *) world->keyswindata;
210 struct KeyBinding * keybindings = world->keybindings;
212 if (keyswindata->max >= win->height) {
213 if (keyswindata->select > win->height / 2) {
214 if (keyswindata->select < (keyswindata->max - (win->height / 2)))
215 offset = keyswindata->select - (win->height / 2);
217 offset = keyswindata->max - win->height + 1; } }
218 int keydescwidth = 9 + 1; // max length assured by get_keyname() + \0
219 char * keydesc = malloc(keydescwidth);
223 for (y = 0; y <= keyswindata->max && y < win->height; y++) {
225 if (y == keyswindata->select - offset) {
227 if (1 == keyswindata->edit)
228 attri = attri | A_BLINK; }
229 keyname = get_keyname(keybindings[y + offset].key);
230 snprintf(keydesc, keydescwidth, "%-9s", keyname);
232 for (x = 0; x < win->width; x++)
233 if (x < strlen(keydesc))
234 mvwaddch(win->curses_win, y, x, keydesc[x] | attri);
235 else if (strlen(keydesc) < x && x < strlen(keybindings[y + offset].name) + strlen(keydesc) + 1)
236 mvwaddch(win->curses_win, y, x, keybindings[y + offset].name[x - strlen(keydesc) - 1] | attri);
238 mvwaddch(win->curses_win, y, x, ' ' | attri); }
241 void init_keybindings(struct World * world) {
242 // Initialize keybindings from file "keybindings".
243 FILE * file = fopen("keybindings", "r");
252 if (c_count > linemax)
256 struct KeyBinding * keybindings = malloc(lines * sizeof(struct KeyBinding));
257 fseek(file, 0, SEEK_SET);
258 char * command = malloc(linemax);
260 char * digits = malloc(3);
267 keybindings[keycount].name = calloc(commcount + 1, sizeof(char));
268 memcpy(keybindings[keycount].name, command, commcount);
269 keybindings[keycount].key = key;
273 else if (-1 != digicount)
276 digimax = digicount - 1;
277 while (digicount > 0) {
279 key = key + ((digits[digicount] - 48) * pow(10, digimax - digicount)); }
282 digits[digicount] = c;
285 command[commcount] = c;
291 struct KeysWinData * keyswindata = malloc(sizeof(struct KeysWinData));
292 keyswindata->max = lines - 1;
293 keyswindata->select = 0;
294 keyswindata->edit = 0;
295 world->keybindings = keybindings;
296 world->keyswindata = keyswindata; }
298 void save_keybindings(struct World * world) {
299 // Write keybindings to keybindings file.
300 struct KeysWinData * keyswindata = (struct KeysWinData *) world->keyswindata;
301 struct KeyBinding * keybindings = world->keybindings;
302 FILE * file = fopen("keybindings", "w");
305 for (i = 0; i <= keyswindata->max; i++)
306 if (strlen(keybindings[i].name) > linemax)
307 linemax = strlen(keybindings[i].name);
308 linemax = linemax + 6; // + 6 = + 3 digits + whitespace + newline + null byte
309 char * line = malloc(linemax);
310 for (i = 0; i <= keyswindata->max; i++) {
311 snprintf(line, linemax, "%d %s\n", keybindings[i].key, keybindings[i].name);
312 fwrite(line, sizeof(char), strlen(line), file); }
318 init_keybindings(&world);
320 WINDOW * screen = initscr();
323 keypad(screen, TRUE);
325 struct WinMeta win_meta = init_win_meta(screen);
327 struct Win win_keys = init_window(&win_meta, "Keys");
328 win_keys.draw = draw_keys_window;
329 win_keys.data = &world;
331 struct Win win_map = init_window(&win_meta, "Map");
332 win_map.draw = draw_map;
333 struct Map map = init_map();
337 struct Win win_info = init_window(&win_meta, "Info");
338 win_info.draw = draw_info;
339 win_info.data = &world;
341 struct Win win_log = init_window(&win_meta, "Log");
342 win_log.draw = draw_text_from_bottom;
343 win_log.data = calloc(1, sizeof(char));
344 update_log (&win_log, "Start!");
348 draw_all_windows (&win_meta);
350 if (key == get_action_key(world.keybindings, "quit"))
352 else if (key == get_action_key(world.keybindings, "scroll pad right"))
353 win_meta.pad_offset++;
354 else if (key == get_action_key(world.keybindings, "scroll pad left") && win_meta.pad_offset > 0)
355 win_meta.pad_offset--;
356 else if (key == get_action_key(world.keybindings, "toggle keys window"))
357 toggle_window(&win_meta, &win_keys);
358 else if (key == get_action_key(world.keybindings, "toggle map window"))
359 toggle_window(&win_meta, &win_map);
360 else if (key == get_action_key(world.keybindings, "toggle info window"))
361 toggle_window(&win_meta, &win_info);
362 else if (key == get_action_key(world.keybindings, "toggle log window"))
363 toggle_window(&win_meta, &win_log);
364 else if (key == get_action_key(world.keybindings, "cycle forwards") && win_meta.active != 0)
365 cycle_active_window(&win_meta, 'n');
366 else if (key == get_action_key(world.keybindings, "cycle backwards") && win_meta.active != 0)
367 cycle_active_window(&win_meta, 'p');
368 else if (key == get_action_key(world.keybindings, "shift forwards") && win_meta.active != 0)
369 shift_window(&win_meta, 'f');
370 else if (key == get_action_key(world.keybindings, "shift backwards") && win_meta.active != 0)
371 shift_window(&win_meta, 'b');
372 else if (key == get_action_key(world.keybindings, "grow horizontally") && win_meta.active != 0)
373 resize_window(&win_meta, '*');
374 else if (key == get_action_key(world.keybindings, "shrink horizontally") && win_meta.active != 0)
375 resize_window(&win_meta, '_');
376 else if (key == get_action_key(world.keybindings, "grow vertically") && win_meta.active != 0)
377 resize_window(&win_meta, '+');
378 else if (key == get_action_key(world.keybindings, "shrink vertically") && win_meta.active != 0)
379 resize_window(&win_meta, '-');
380 else if (key == get_action_key(world.keybindings, "save keys"))
381 save_keybindings(&world);
382 else if (key == get_action_key(world.keybindings, "keys nav up") && world.keyswindata->select > 0)
383 world.keyswindata->select--;
384 else if (key == get_action_key(world.keybindings, "keys nav down") && world.keyswindata->select < world.keyswindata->max)
385 world.keyswindata->select++;
386 else if (key == get_action_key(world.keybindings, "keys mod")) {
387 world.keyswindata->edit = 1;
388 draw_all_windows (&win_meta);
390 if (key < 1000) // ensure maximum of three digits in key code field
391 world.keybindings[world.keyswindata->select].key = key;
392 world.keyswindata->edit = 0; }
393 else if (key == get_action_key(world.keybindings, "map up") && map.offset_y > 0)
395 else if (key == get_action_key(world.keybindings, "map down"))
397 else if (key == get_action_key(world.keybindings, "map right"))
399 else if (key == get_action_key(world.keybindings, "map left") && map.offset_x > 0)
401 else if (key == get_action_key(world.keybindings, "player down") && map.player_y < map.height - 1) {
402 update_info (&world);
403 update_log (&win_log, "\nYou move south.");
405 else if (key == get_action_key(world.keybindings, "player up") && map.player_y > 0) {
406 update_info (&world);
407 update_log (&win_log, "\nYou move north.");
409 else if (key == get_action_key(world.keybindings, "player right") && map.player_x < map.width - 1) {
410 update_info (&world);
411 update_log (&win_log, "\nYou move east.");
413 else if (key == get_action_key(world.keybindings, "player left") && map.player_x > 0) {
414 update_info (&world);
415 update_log (&win_log, "\nYou move west.");
417 else if (key == get_action_key(world.keybindings, "wait") ) {
418 update_info (&world);
419 update_log (&win_log, "\nYou wait."); } }
422 for (key = 0; key <= world.keyswindata->max; key++)
423 free(world.keybindings[key].name);
424 free(world.keybindings);
425 free(world.keyswindata);