2 * X11 GUI for slide puzzle game
3 * Copyright © 2022 Nick Bowler
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <https://www.gnu.org/licenses/>.
34 #define TIMER_UPDATE_MS 33
36 #define SPLIT_NUMERATOR 75
37 #define SPLIT_DENOMINATOR 100
39 #define MIN(a, b) ((a) < (b) ? (a) : (b))
41 #define PROGNAME "rrace"
42 static const char *progname = PROGNAME;
43 static const struct option lopts[] = { LOPTS_INITIALIZER, {0} };
45 static char * const default_resources[] = {
47 "*game.height: 371", // 365 + 2*shadowThickness
50 "*game.XmFrame.shadowThickness: 3",
51 "*game.XmFrame.shadowType: shadow_in",
52 "*goalArea.leftOffset: 1",
54 "*gameNew.accelerator: Ctrl<Key>N",
55 "*gameNew.acceleratorText: Ctrl+N",
56 "*gameExit.accelerator: Ctrl<Key>Q",
57 "*gameExit.acceleratorText: Ctrl+Q",
59 "*aboutDialog*pixmapTextPadding: 10",
64 static void print_version(void)
66 version_print_head("rrace-motif", stdout);
67 puts("License GPLv3+: GNU GPL version 3 or any later version");
68 puts("This is free software: you are free to change and redistribute it.");
69 puts("There is NO WARRANTY, to the extent permitted by law.");
72 static void print_usage(FILE *f)
74 fprintf(f, "Usage: %s [options]\n", progname);
76 fprintf(f, "Try %s --help for more information.\n", progname);
79 static void print_help(void)
81 struct lopt_help help = {0};
82 const struct option *opt;
88 for (opt = lopts; opt->name; opt++) {
89 if (!lopt_get_help(opt, &help))
91 help_print_option(opt, help.arg, help.desc, 20);
95 printf("Report bugs to <%s>.\n", PACKAGE_BUGREPORT);
98 static Widget early_setup(XtAppContext *app, int argc, char **argv)
103 /* Check for --help/--version early (before X connection) */
105 while ((opt = getopt_long_only(argc, argv, "", lopts, NULL)) != -1) {
116 shell = XtOpenApplication(app, PACKAGE_TARNAME, NULL, 0,
117 &argc, argv, (String *)default_resources,
118 sessionShellWidgetClass, NULL, 0);
121 while ((opt = getopt_long_only(argc, argv, "", lopts, NULL)) != -1) {
130 fprintf(stderr, "%s: excess command-line arguments.\n",
139 static void timer_tick(void *data, XtIntervalId *id)
141 struct app_state *state = data;
144 if (state->board.x > 4) {
146 state->timer_tick = 0;
150 app = XtWidgetToApplicationContext(state->game);
151 ui_timer_update(state, game_elapsed(&state->board));
152 state->timer_tick = XtAppAddTimeOut(app, TIMER_UPDATE_MS,
156 static void do_input_move(struct app_state *state, int x, int y)
160 if ((mask = game_do_move(&state->board, x, y)) != 0) {
161 if (game_check_goal(&state->board) == 0) {
162 int_fast32_t ms = game_finish(&state->board);
165 ui_timer_update(state, ms);
167 sec = ms / 1000, ms %= 1000;
168 min = sec / 60, sec %= 60;
169 printf("You won! Time was %u:%.2u.%.3u\n",
170 min, sec, (unsigned)ms);
175 x11_redraw_game(state, mask);
179 static void set_view_goal(struct app_state *state, int view_goal)
181 state->view_goal_on_game = view_goal;
182 x11_redraw_game(state, game_check_goal(&state->board));
185 static void game_input(Widget w, void *data, void *cb_data)
187 XmDrawingAreaCallbackStruct *cbs = cb_data;
188 XButtonEvent *b = &cbs->event->xbutton;
189 struct app_state *state = data;
191 switch (cbs->event->type) {
195 if (b->state & Button3Mask)
198 do_input_move(state, b->x / state->game_tile_sz,
199 b->y / state->game_tile_sz);
202 set_view_goal(state, 1);
209 set_view_goal(state, 0);
215 static struct app_state state;
217 static Widget get_shell(Widget w)
221 for (shell = w; !XtIsWMShell(shell);)
222 shell = XtParent(shell);
227 static void proc_exit(Widget w, XEvent *e, String *argv, Cardinal *argc)
229 XtAppSetExitFlag(XtWidgetToApplicationContext(w));
232 static void proc_new_game(Widget w, XEvent *e, String *argv, Cardinal *argc)
234 game_reset(&state.board);
236 x11_redraw_goal(&state, -1, get_shell(w));
237 x11_redraw_game(&state, -1);
239 if (!state.timer_tick) {
240 XtAppContext app = XtWidgetToApplicationContext(w);
241 state.timer_tick = XtAppAddTimeOut(app, TIMER_UPDATE_MS,
245 game_begin(&state.board);
248 static void proc_about(Widget w, XEvent *e, String *argv, Cardinal *argc)
250 ui_show_about(&state, get_shell(w));
253 static void proc_resize(Widget form, XEvent *e, String *argv, Cardinal *argc)
255 Widget game = XtParent(state.game);
256 Widget goal = XtParent(state.goal);
257 Dimension w, h, gamesz, gameborder, goalsz, goalborder;
260 XtVaGetValues(form, XmNwidth, &w, XmNheight, &h, (char *)NULL);
261 XtVaGetValues(game, XmNshadowThickness, &gameborder, (char *)NULL);
262 XtVaGetValues(goal, XmNshadowThickness, &goalborder,
266 gamesz = MIN(h, w * SPLIT_NUMERATOR / SPLIT_DENOMINATOR);
267 state.game_tile_sz = (gamesz - 2*gameborder) / 5;
268 gamesz = 5*state.game_tile_sz + 2*gameborder;
270 goalsz = MIN(gamesz*3/5, w - gamesz - gap);
271 state.goal_tile_sz = (goalsz - 2*goalborder) / 3;
272 goalsz = 3*state.goal_tile_sz + 2*goalborder;
274 x = (w - gamesz - goalsz - gap) / 2;
277 y = (h - gamesz) / 2;
280 XtVaSetValues(game, XmNleftOffset, x, XmNtopOffset, y, (char *)NULL);
281 XtVaSetValues(game, XmNwidth, gamesz, XmNheight, gamesz, (char *)NULL);
282 XtVaSetValues(goal, XmNwidth, goalsz, XmNheight, goalsz, (char *)NULL);
285 static const XtActionsRec app_actions[] = {
286 { "gameNew", proc_new_game },
287 { "gameExit", proc_exit },
288 { "helpAbout", proc_about },
290 { "ResizeGameArea", proc_resize }
293 static XtAppContext app_initialize(int argc, char **argv)
302 shell = early_setup(&app, argc, argv);
303 XtAppAddActions(app, (void *)app_actions, XtNumber(app_actions));
304 ui_initialize(&state, shell);
305 x11_initialize(&state, shell);
307 XtAddCallback(state.game, XmNinputCallback, game_input, &state);
309 /* Begin with the game in winning state */
310 game_reset(&state.board);
311 for (i = 0; i < 3; i++)
312 state.board.game[i] = state.board.goal[i] << GOAL_SHIFT;
313 game_finish(&state.board);
315 state.use_ewmh_icons = ewmh_probe_wm_icon(shell);
316 XtRealizeWidget(shell);
318 x11_redraw_goal(&state, 0, shell);
323 int main(int argc, char **argv)
325 setlocale(LC_ALL, "");
326 XtAppMainLoop(app_initialize(argc, argv));