ref: 11a8149d673d96bec17d6487b5fa95b5bf5ffd6b
dir: /nestedvm.c/
/*
* nestedvm.c: NestedVM front end for my puzzle collection.
*/
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <time.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#include <sys/time.h>
#include "puzzles.h"
extern void _pause();
extern int _call_java(int cmd, int arg1, int arg2, int arg3);
void fatal(const char *fmt, ...)
{
va_list ap;
fprintf(stderr, "fatal error: ");
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(1);
}
struct frontend {
// TODO kill unneeded members!
midend *me;
bool timer_active;
struct timeval last_time;
config_item *cfg;
int cfg_which;
bool cfgret;
int ox, oy, w, h;
};
static frontend *_fe;
void get_random_seed(void **randseed, int *randseedsize)
{
struct timeval *tvp = snew(struct timeval);
gettimeofday(tvp, NULL);
*randseed = (void *)tvp;
*randseedsize = sizeof(struct timeval);
}
void frontend_default_colour(frontend *fe, float *output)
{
output[0] = output[1]= output[2] = 0.8f;
}
void nestedvm_status_bar(void *handle, const char *text)
{
_call_java(4,0,(int)text,0);
}
void nestedvm_start_draw(void *handle)
{
frontend *fe = (frontend *)handle;
_call_java(5, 0, fe->w, fe->h);
_call_java(4, 1, fe->ox, fe->oy);
}
void nestedvm_clip(void *handle, int x, int y, int w, int h)
{
frontend *fe = (frontend *)handle;
_call_java(5, w, h, 0);
_call_java(4, 3, x + fe->ox, y + fe->oy);
}
void nestedvm_unclip(void *handle)
{
frontend *fe = (frontend *)handle;
_call_java(4, 4, fe->ox, fe->oy);
}
void nestedvm_draw_text(void *handle, int x, int y, int fonttype, int fontsize,
int align, int colour, const char *text)
{
frontend *fe = (frontend *)handle;
_call_java(5, x + fe->ox, y + fe->oy,
(fonttype == FONT_FIXED ? 0x10 : 0x0) | align);
_call_java(7, fontsize, colour, (int)text);
}
void nestedvm_draw_rect(void *handle, int x, int y, int w, int h, int colour)
{
frontend *fe = (frontend *)handle;
_call_java(5, w, h, colour);
_call_java(4, 5, x + fe->ox, y + fe->oy);
}
void nestedvm_draw_line(void *handle, int x1, int y1, int x2, int y2,
int colour)
{
frontend *fe = (frontend *)handle;
_call_java(5, x2 + fe->ox, y2 + fe->oy, colour);
_call_java(4, 6, x1 + fe->ox, y1 + fe->oy);
}
void nestedvm_draw_poly(void *handle, int *coords, int npoints,
int fillcolour, int outlinecolour)
{
frontend *fe = (frontend *)handle;
int i;
_call_java(4, 7, npoints, 0);
for (i = 0; i < npoints; i++) {
_call_java(6, i, coords[i*2] + fe->ox, coords[i*2+1] + fe->oy);
}
_call_java(4, 8, outlinecolour, fillcolour);
}
void nestedvm_draw_circle(void *handle, int cx, int cy, int radius,
int fillcolour, int outlinecolour)
{
frontend *fe = (frontend *)handle;
_call_java(5, cx+fe->ox, cy+fe->oy, radius);
_call_java(4, 9, outlinecolour, fillcolour);
}
struct blitter {
int handle, w, h, x, y;
};
blitter *nestedvm_blitter_new(void *handle, int w, int h)
{
blitter *bl = snew(blitter);
bl->handle = -1;
bl->w = w;
bl->h = h;
return bl;
}
void nestedvm_blitter_free(void *handle, blitter *bl)
{
if (bl->handle != -1)
_call_java(4, 11, bl->handle, 0);
sfree(bl);
}
void nestedvm_blitter_save(void *handle, blitter *bl, int x, int y)
{
frontend *fe = (frontend *)handle;
if (bl->handle == -1)
bl->handle = _call_java(4,10,bl->w, bl->h);
bl->x = x;
bl->y = y;
_call_java(8, bl->handle, x + fe->ox, y + fe->oy);
}
void nestedvm_blitter_load(void *handle, blitter *bl, int x, int y)
{
frontend *fe = (frontend *)handle;
assert(bl->handle != -1);
if (x == BLITTER_FROMSAVED && y == BLITTER_FROMSAVED) {
x = bl->x;
y = bl->y;
}
_call_java(9, bl->handle, x + fe->ox, y + fe->oy);
}
void nestedvm_end_draw(void *handle)
{
_call_java(4,2,0,0);
}
char *nestedvm_text_fallback(void *handle, const char *const *strings,
int nstrings)
{
/*
* We assume Java can cope with any UTF-8 likely to be emitted
* by a puzzle.
*/
return dupstr(strings[0]);
}
const struct drawing_api nestedvm_drawing = {
nestedvm_draw_text,
nestedvm_draw_rect,
nestedvm_draw_line,
nestedvm_draw_poly,
nestedvm_draw_circle,
NULL, // draw_update,
nestedvm_clip,
nestedvm_unclip,
nestedvm_start_draw,
nestedvm_end_draw,
nestedvm_status_bar,
nestedvm_blitter_new,
nestedvm_blitter_free,
nestedvm_blitter_save,
nestedvm_blitter_load,
NULL, NULL, NULL, NULL, NULL, NULL, /* {begin,end}_{doc,page,puzzle} */
NULL, NULL, /* line_width, line_dotted */
nestedvm_text_fallback,
};
int jcallback_key_event(int x, int y, int keyval)
{
frontend *fe = (frontend *)_fe;
if (fe->ox == -1)
return 1;
if (keyval >= 0 &&
!midend_process_key(fe->me, x - fe->ox, y - fe->oy, keyval, NULL))
return 42;
return 1;
}
int jcallback_resize(int width, int height)
{
frontend *fe = (frontend *)_fe;
int x, y;
x = width;
y = height;
midend_size(fe->me, &x, &y, true, 1.0);
fe->ox = (width - x) / 2;
fe->oy = (height - y) / 2;
fe->w = x;
fe->h = y;
midend_force_redraw(fe->me);
return 0;
}
int jcallback_timer_func()
{
frontend *fe = (frontend *)_fe;
if (fe->timer_active) {
struct timeval now;
float elapsed;
gettimeofday(&now, NULL);
elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
(now.tv_sec - fe->last_time.tv_sec));
midend_timer(fe->me, elapsed); /* may clear timer_active */
fe->last_time = now;
}
return fe->timer_active;
}
void deactivate_timer(frontend *fe)
{
if (fe->timer_active)
_call_java(4, 13, 0, 0);
fe->timer_active = false;
}
void activate_timer(frontend *fe)
{
if (!fe->timer_active) {
_call_java(4, 12, 0, 0);
gettimeofday(&fe->last_time, NULL);
}
fe->timer_active = true;
}
void jcallback_config_ok()
{
frontend *fe = (frontend *)_fe;
const char *err;
err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
if (err)
_call_java(2, (int) "Error", (int)err, 1);
else {
fe->cfgret = true;
}
}
void jcallback_config_set_string(int item_ptr, int char_ptr) {
config_item *i = (config_item *)item_ptr;
char* newval = (char*) char_ptr;
assert(i->type == C_STRING);
sfree(i->u.string.sval);
i->u.string.sval = dupstr(newval);
free(newval);
}
void jcallback_config_set_boolean(int item_ptr, int selected) {
config_item *i = (config_item *)item_ptr;
assert(i->type == C_BOOLEAN);
i->u.boolean.bval = selected != 0 ? true : false;
}
void jcallback_config_set_choice(int item_ptr, int selected) {
config_item *i = (config_item *)item_ptr;
assert(i->type == C_CHOICES);
i->u.choices.selected = selected;
}
static bool get_config(frontend *fe, int which)
{
char *title;
config_item *i;
fe->cfg = midend_get_config(fe->me, which, &title);
fe->cfg_which = which;
fe->cfgret = false;
_call_java(10, (int)title, 0, 0);
for (i = fe->cfg; i->type != C_END; i++) {
_call_java(5, (int)i, i->type, (int)i->name);
switch (i->type) {
case C_STRING:
_call_java(11, (int)i->u.string.sval, 0, 0);
break;
case C_BOOLEAN:
_call_java(11, 0, i->u.boolean.bval, 0);
break;
case C_CHOICES:
_call_java(11, (int)i->u.choices.choicenames,
i->u.choices.selected, 0);
break;
}
}
_call_java(12,0,0,0);
free_cfg(fe->cfg);
return fe->cfgret;
}
int jcallback_newgame_event(void)
{
frontend *fe = (frontend *)_fe;
if (!midend_process_key(fe->me, 0, 0, UI_NEWGAME, NULL))
return 42;
return 0;
}
int jcallback_undo_event(void)
{
frontend *fe = (frontend *)_fe;
if (!midend_process_key(fe->me, 0, 0, UI_UNDO, NULL))
return 42;
return 0;
}
int jcallback_redo_event(void)
{
frontend *fe = (frontend *)_fe;
if (!midend_process_key(fe->me, 0, 0, UI_REDO, NULL))
return 42;
return 0;
}
int jcallback_quit_event(void)
{
frontend *fe = (frontend *)_fe;
if (!midend_process_key(fe->me, 0, 0, UI_QUIT, NULL))
return 42;
return 0;
}
static void resize_fe(frontend *fe)
{
int x, y;
x = INT_MAX;
y = INT_MAX;
midend_size(fe->me, &x, &y, false, 1.0);
_call_java(3, x, y, 0);
}
int jcallback_preset_event(int ptr_game_params)
{
frontend *fe = (frontend *)_fe;
game_params *params =
(game_params *)ptr_game_params;
midend_set_params(fe->me, params);
midend_new_game(fe->me);
resize_fe(fe);
_call_java(13, midend_which_preset(fe->me), 0, 0);
return 0;
}
int jcallback_solve_event()
{
frontend *fe = (frontend *)_fe;
const char *msg;
msg = midend_solve(fe->me);
if (msg)
_call_java(2, (int) "Error", (int)msg, 1);
return 0;
}
int jcallback_restart_event()
{
frontend *fe = (frontend *)_fe;
midend_restart_game(fe->me);
return 0;
}
int jcallback_config_event(int which)
{
frontend *fe = (frontend *)_fe;
_call_java(13, midend_which_preset(fe->me), 0, 0);
if (!get_config(fe, which))
return 0;
midend_new_game(fe->me);
resize_fe(fe);
_call_java(13, midend_which_preset(fe->me), 0, 0);
return 0;
}
int jcallback_about_event()
{
char titlebuf[256];
char textbuf[1024];
sprintf(titlebuf, "About %.200s", thegame.name);
sprintf(textbuf,
"%.200s\n\n"
"from Simon Tatham's Portable Puzzle Collection\n\n"
"%.500s", thegame.name, ver);
_call_java(2, (int)&titlebuf, (int)&textbuf, 0);
return 0;
}
void preset_menu_populate(struct preset_menu *menu, int menuid)
{
int i;
for (i = 0; i < menu->n_entries; i++) {
struct preset_menu_entry *entry = &menu->entries[i];
if (entry->params) {
_call_java(5, (int)entry->params, 0, 0);
_call_java(1, (int)entry->title, menuid, entry->id);
} else {
_call_java(5, 0, 0, 0);
_call_java(1, (int)entry->title, menuid, entry->id);
preset_menu_populate(entry->submenu, entry->id);
}
}
}
int main(int argc, char **argv)
{
int i, n;
float* colours;
_fe = snew(frontend);
_fe->timer_active = false;
_fe->me = midend_new(_fe, &thegame, &nestedvm_drawing, _fe);
if (argc > 1)
midend_game_id(_fe->me, argv[1]); /* ignore failure */
midend_new_game(_fe->me);
{
struct preset_menu *menu;
int nids, topmenu;
menu = midend_get_presets(_fe->me, &nids);
topmenu = _call_java(1, 0, nids, 0);
preset_menu_populate(menu, topmenu);
}
colours = midend_colours(_fe->me, &n);
_fe->ox = -1;
_call_java(0, (int)thegame.name,
(thegame.can_configure ? 1 : 0) |
(midend_wants_statusbar(_fe->me) ? 2 : 0) |
(thegame.can_solve ? 4 : 0), n);
for (i = 0; i < n; i++) {
_call_java(1024+ i,
(int)(colours[i*3] * 0xFF),
(int)(colours[i*3+1] * 0xFF),
(int)(colours[i*3+2] * 0xFF));
}
resize_fe(_fe);
_call_java(13, midend_which_preset(_fe->me), 0, 0);
// Now pause the vm. The VM will be call()ed when
// an input event occurs.
_pause();
// shut down when the VM is resumed.
deactivate_timer(_fe);
midend_free(_fe->me);
return 0;
}