/*
* X11 GUI for slide puzzle game
* Copyright © 2022-2023 Nick Bowler
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
#include
#include
#include
#include
#include
#include
#include "help.h"
#include "xtra.h"
#include "motif.h"
#include "ewmhicon.h"
#include "motifopt.h"
#include "game.h"
#include "version.h"
#define TIMER_UPDATE_MS 33
#define SPLIT_NUMERATOR 75
#define SPLIT_DENOMINATOR 100
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define PROGNAME "rrace"
static const char *progname = PROGNAME;
static char * const default_resources[] = {
"*title: RRace",
"*game.height: 371", // 365 + 2*shadowThickness
"*game.width: 498",
"*game.XmFrame.shadowThickness: 3",
"*game.XmFrame.shadowType: shadow_in",
"*goalArea.leftOffset: 1",
"*gameNew.accelerator: CtrlN",
"*gameNew.acceleratorText: Ctrl+N",
"*gameExit.accelerator: CtrlQ",
"*gameExit.acceleratorText: Ctrl+Q",
"*aboutDialog*pixmapTextPadding: 10",
NULL
};
static void print_version(void)
{
version_print_head("rrace-motif", stdout);
puts("License GPLv3+: GNU GPL version 3 or any later version");
puts("This is free software: you are free to change and redistribute it.");
puts("There is NO WARRANTY, to the extent permitted by law.");
}
static void print_usage(FILE *f)
{
fprintf(f, "Usage: %s [options]\n", progname);
if (f != stdout)
fprintf(f, "Try %s --help for more information.\n", progname);
}
static void print_help(const struct option *lopts)
{
struct lopt_help help = {0};
const struct option *opt;
print_usage(stdout);
putchar('\n');
puts("Options:");
for (opt = lopts; opt->name; opt++) {
if (!lopt_get_help(opt, &help))
continue;
help_print_option(opt, help.arg, help.desc, 20);
}
putchar('\n');
printf("Report bugs to <%s>.\n", PACKAGE_BUGREPORT);
}
static Widget early_setup(XtAppContext *app, int argc, char **argv)
{
Widget shell;
int opt;
XTRA_PACKED_LOPTS(lopts);
/* Check for --help/--version early (before X connection) */
opterr = 0;
while ((opt = getopt_long_only(argc, argv, "", lopts, NULL)) != -1) {
switch (opt) {
case LOPT_VERSION:
print_version();
exit(EXIT_SUCCESS);
case LOPT_HELP:
print_help(lopts);
exit(EXIT_SUCCESS);
}
}
shell = XtOpenApplication(app, PACKAGE_TARNAME, NULL, 0,
&argc, argv, (String *)default_resources,
sessionShellWidgetClass, NULL, 0);
opterr = optind = 1;
while ((opt = getopt_long_only(argc, argv, "", lopts, NULL)) != -1) {
switch (opt) {
default:
print_usage(stderr);
exit(EXIT_FAILURE);
}
}
if (argv[optind]) {
fprintf(stderr, "%s: excess command-line arguments.\n",
progname);
print_usage(stderr);
exit(EXIT_FAILURE);
}
return shell;
}
static void timer_tick(void *data, XtIntervalId *id)
{
struct app_state *state = data;
XtAppContext app;
if (state->board.x > 4) {
/* Game is over */
state->flags &= ~FLAG_TIMER_RUNNING;
return;
}
ui_timer_update(state, game_elapsed(&state->board));
app = XtWidgetToApplicationContext(state->game);
XtAppAddTimeOut(app, TIMER_UPDATE_MS, timer_tick, state);
}
static void do_input_move(struct app_state *state, int x, int y)
{
uint_fast32_t mask;
if ((mask = game_do_move(&state->board, x, y)) != 0) {
if (game_check_goal(&state->board) == 0) {
ui_timer_update(state, game_finish(&state->board));
mask |= ~GOAL_MASK;
}
x11_redraw_game(state, mask);
}
}
static void set_view_goal(struct app_state *state, int view_goal)
{
state->flags &= ~FLAG_VIEW_GOAL_ON_GAME;
state->flags |= view_goal ? FLAG_VIEW_GOAL_ON_GAME : 0;
x11_redraw_game(state, game_check_goal(&state->board));
}
static void game_input(Widget w, void *data, void *cb_data)
{
XmDrawingAreaCallbackStruct *cbs = cb_data;
XButtonEvent *b = &cbs->event->xbutton;
struct app_state *state = data;
switch (cbs->event->type) {
case ButtonPress:
switch (b->button) {
case Button1:
if (b->state & Button3Mask)
break;
do_input_move(state, b->x / state->game_tile_sz,
b->y / state->game_tile_sz);
break;
case Button3:
set_view_goal(state, 1);
break;
}
break;
case ButtonRelease:
switch (b->button) {
case Button3:
set_view_goal(state, 0);
break;
}
}
}
static struct app_state state;
static Widget get_shell(Widget w)
{
Widget shell;
for (shell = w; !XtIsWMShell(shell);)
shell = XtParent(shell);
return shell;
}
static void proc_exit(Widget w, XEvent *e, String *argv, Cardinal *argc)
{
XtAppSetExitFlag(XtWidgetToApplicationContext(w));
}
static void proc_new_game(Widget w, XEvent *e, String *argv, Cardinal *argc)
{
XtAppContext app;
game_reset(&state.board);
state.flags &= ~FLAG_VIEW_GOAL_ON_GAME;
x11_redraw_goal(&state, -1, get_shell(w));
x11_redraw_game(&state, -1);
game_begin(&state.board);
if (!(state.flags & FLAG_TIMER_RUNNING)) {
state.flags |= FLAG_TIMER_RUNNING;
timer_tick(&state, 0);
}
}
static void proc_about(Widget w, XEvent *e, String *argv, Cardinal *argc)
{
ui_show_about(&state, get_shell(w));
}
static void proc_resize(Widget form, XEvent *e, String *argv, Cardinal *argc)
{
Widget game = XtParent(state.game);
Widget goal = XtParent(state.goal);
Dimension w, h, gamesz, gameborder, goalsz, goalborder;
int x, y, gap;
XtVaGetValues(form, XmNwidth, &w, XmNheight, &h, (char *)NULL);
XtVaGetValues(game, XmNshadowThickness, &gameborder, (char *)NULL);
XtVaGetValues(goal, XmNshadowThickness, &goalborder,
XmNleftOffset, &gap,
(char *)NULL);
gamesz = MIN(h, w * SPLIT_NUMERATOR / SPLIT_DENOMINATOR);
state.game_tile_sz = (gamesz - 2*gameborder) / 5;
gamesz = 5*state.game_tile_sz + 2*gameborder;
goalsz = MIN(gamesz*3/5, w - gamesz - gap);
state.goal_tile_sz = (goalsz - 2*goalborder) / 3;
goalsz = 3*state.goal_tile_sz + 2*goalborder;
x = (w - gamesz - goalsz - gap) / 2;
if (x < 2) x = 0;
y = (h - gamesz) / 2;
if (y < 3) y = 0;
XtVaSetValues(game, XmNleftOffset, x, XmNtopOffset, y, (char *)NULL);
XtVaSetValues(game, XmNwidth, gamesz, XmNheight, gamesz, (char *)NULL);
XtVaSetValues(goal, XmNwidth, goalsz, XmNheight, goalsz, (char *)NULL);
}
static const XtActionsRec app_actions[] = {
{ "gameNew", proc_new_game },
{ "gameExit", proc_exit },
{ "helpAbout", proc_about },
{ "ResizeGameArea", proc_resize }
};
static XtAppContext app_initialize(int argc, char **argv)
{
XtAppContext app;
Widget shell;
int i;
if (argc > 0)
progname = argv[0];
shell = early_setup(&app, argc, argv);
XtAppAddActions(app, (void *)app_actions, XtNumber(app_actions));
ui_initialize(&state, shell);
x11_initialize(&state, shell);
XtAddCallback(state.game, XmNinputCallback, game_input, &state);
/* Begin with the game in winning state */
game_reset(&state.board);
for (i = 0; i < 3; i++)
state.board.game[i] = state.board.goal[i] << GOAL_SHIFT;
game_finish(&state.board);
state.flags = ewmh_probe_wm_icon(shell);
XtRealizeWidget(shell);
x11_redraw_goal(&state, 0, shell);
return app;
}
int main(int argc, char **argv)
{
setlocale(LC_ALL, "");
XtAppMainLoop(app_initialize(argc, argv));
return 0;
}