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/>.
31 #define PROGNAME "rrace"
32 static const char *progname = PROGNAME;
33 static const struct option lopts[] = { LOPTS_INITIALIZER, {0} };
35 static char * const default_resources[] = {
37 "*game.height: 371", // 365 + 2*shadowThickness
40 "*game.XmFrame.shadowThickness: 3",
41 "*game.XmFrame.shadowType: shadow_in",
42 "*goalArea.leftOffset: 1",
44 "*gameNew.accelerator: Ctrl<Key>N",
45 "*gameNew.acceleratorText: Ctrl+N",
46 "*gameExit.accelerator: Ctrl<Key>Q",
47 "*gameExit.acceleratorText: Ctrl+Q",
52 static void print_version(void)
54 printf("%s %s\n", PROGNAME, PACKAGE_VERSION);
55 printf("Copyright (C) 2022 Nick Bowler\n");
56 puts("License GPLv3+: GNU GPL version 3 or any later version");
57 puts("This is free software: you are free to change and redistribute it.");
58 puts("There is NO WARRANTY, to the extent permitted by law.");
61 static void print_usage(FILE *f)
63 fprintf(f, "Usage: %s [options]\n", progname);
65 fprintf(f, "Try %s --help for more information.\n", progname);
68 static void print_help(void)
70 struct lopt_help help = {0};
71 const struct option *opt;
77 for (opt = lopts; opt->name; opt++) {
78 if (!lopt_get_help(opt, &help))
80 help_print_option(opt, help.arg, help.desc, 20);
84 printf("Report bugs to <%s>.\n", PACKAGE_BUGREPORT);
87 static Widget early_setup(XtAppContext *app, int argc, char **argv)
92 /* Check for --help/--version early (before X connection) */
94 while ((opt = getopt_long_only(argc, argv, "", lopts, NULL)) != -1) {
105 shell = XtOpenApplication(app, PACKAGE_TARNAME, NULL, 0,
106 &argc, argv, (String *)default_resources,
107 sessionShellWidgetClass, NULL, 0);
110 while ((opt = getopt_long_only(argc, argv, "", lopts, NULL)) != -1) {
119 fprintf(stderr, "%s: excess command-line arguments.\n",
128 static void do_input_move(struct app_state *state, int x, int y)
132 if ((mask = game_do_move(&state->board, x, y)) != 0) {
133 if (game_check_goal(&state->board) == 0) {
134 int_fast32_t ms = game_finish(&state->board);
137 /* Negative time just means clock jumps and
138 * display headaches. */
142 sec = ms / 1000, ms %= 1000;
143 min = sec / 60, sec %= 60;
144 printf("You won! Time was %u:%.2u:%.3u\n",
145 min, sec, (unsigned)ms);
149 x11_redraw_game(state, mask);
153 static void set_view_goal(struct app_state *state, int view_goal)
155 state->view_goal_on_game = view_goal;
156 x11_redraw_game(state, game_check_goal(&state->board));
159 static void game_input(Widget w, void *data, void *cb_data)
161 XmDrawingAreaCallbackStruct *cbs = cb_data;
162 XButtonEvent *b = &cbs->event->xbutton;
163 struct app_state *state = data;
164 Dimension width, height;
166 switch (cbs->event->type) {
170 if (b->state & Button3Mask)
173 XtVaGetValues(w, XmNwidth, &width,
177 do_input_move(state, b->x / (width / 5),
178 b->y / (height / 5));
181 set_view_goal(state, 1);
188 set_view_goal(state, 0);
194 static struct app_state state;
196 static void proc_exit(Widget w, XEvent *e, String *argv, Cardinal *argc)
198 XtAppSetExitFlag(XtWidgetToApplicationContext(w));
201 static void proc_new_game(Widget w, XEvent *e, String *argv, Cardinal *argc)
205 for (shell = w; !XtIsWMShell(shell);)
206 shell = XtParent(shell);
208 game_reset(&state.board);
210 x11_redraw_goal(&state, -1);
211 x11_redraw_game(&state, -1);
212 x11_redraw_icon(&state, shell);
214 game_begin(&state.board);
217 static const XtActionsRec menu_actions[] = {
218 { "gameNew", proc_new_game },
219 { "gameExit", proc_exit }
222 static XtAppContext app_initialize(int argc, char **argv)
231 shell = early_setup(&app, argc, argv);
232 XtAppAddActions(app, (void *)menu_actions, XtNumber(menu_actions));
233 ui_initialize(&state, shell);
234 x11_initialize(&state, shell);
236 XtAddCallback(state.game, XmNinputCallback, game_input, &state);
238 /* Begin with the game in winning state */
239 game_reset(&state.board);
240 for (i = 0; i < 3; i++)
241 state.board.game[i] = state.board.goal[i] << GOAL_SHIFT;
242 game_finish(&state.board);
244 state.use_ewmh_icons = ewmh_probe_wm_icon(shell);
245 XtRealizeWidget(shell);
247 x11_redraw_icon(&state, shell);
252 int main(int argc, char **argv)
254 XtAppMainLoop(app_initialize(argc, argv));