/*
* game_loop
* DESCRIPTION: Main event loop for the adventure game.
* INPUTS: none
* OUTPUTS: none
* RETURN VALUE: GAME_QUIT if the player quits, or GAME_WON if they have won
* SIDE EFFECTS: drives the display, etc.
*/
static game_condition_t
game_loop ()
{
/*
* Variables used to carry information between event loop ticks; see
* initialization below for explanations of purpose.
*/
struct timeval start_time, tick_time;
struct timeval cur_time; /* current time (during tick) */
cmd_t cmd; /* command issued by input control */
int32_t enter_room; /* player has changed rooms */
/* Record the starting time--assume success. */
(void)gettimeofday (&start_time, NULL);
/* Calculate the time at which the first event loop tick should occur. */
tick_time = start_time;
if ((tick_time.tv_usec += TICK_USEC) > 1000000) {
tick_time.tv_sec++;
tick_time.tv_usec -= 1000000;
}
/* The player has just entered the first room. */
enter_room = 1;
/* The main event loop. */
while (1) {
/*
* Update the screen, preparing the VGA palette and photo-drawing
* routines and drawing a new room photo first if the player has
* entered a new room, then showing the screen (and status bar,
* once you have it working).
*/
if (enter_room) {
/* Reset the view window to (0,0). */
game_info.map_x = game_info.map_y = 0;
set_view_window (game_info.map_x, game_info.map_y);
/* Discard any partially-typed command. */
reset_typed_command ();
/* Adjust colors and photo drawing for the current room photo. */
prep_room (game_info.where);
/* Draw the room (calls show. */
redraw_room ();
/* Only draw once on entry. */
enter_room = 0;
}
show_screen ();
//lock status_msg to prevent changes
(void)pthread_mutex_lock (&msg_lock);
room_t* curr_room = game_info.where; // This is the current room pointer
// Now call fill_status_bar with all the possible strings as params
fill_status_bar(room_name(curr_room), get_typed_command(), status_msg);
(void)pthread_mutex_unlock (&msg_lock); //unlock
// Calculate game time
display_time_on_tux (cur_time.tv_sec - start_time.tv_sec);
/*
* Wait for tick. The tick defines the basic timing of our
* event loop, and is the minimum amount of time between events.
*/
do {
if (gettimeofday (&cur_time, NULL) != 0) {
/* Panic! (should never happen) */
clear_mode_X ();
shutdown_input ();
perror ("gettimeofday");
exit (3);
}
} while (!time_is_after (&cur_time, &tick_time));
/*
* Advance the tick time. If we missed one or more ticks completely,
* i.e., if the current time is already after the time for the next
* tick, just skip the extra ticks and advance the clock to the one
* that we haven't missed.
*/
do {
if ((tick_time.tv_usec += TICK_USEC) > 1000000) {
tick_time.tv_sec++;
tick_time.tv_usec -= 1000000;
}
} while (time_is_after (&cur_time, &tick_time));
/*
* Handle asynchronous events. These events use real time rather
* than tick counts for timing, although the real time is rounded
* off to the nearest tick by definition.
*/
/* (none right now...) */
/*
* Handle synchronous events--in this case, only player commands.
* Note that typed commands that move objects may cause the room
* to be redrawn.
*/
cmd = get_command ();
switch (cmd) {
case CMD_UP: move_photo_down (); break;
case CMD_RIGHT: move_photo_left (); break;
case CMD_DOWN: move_photo_up (); break;
case CMD_LEFT: move_photo_right (); break;
case CMD_MOVE_LEFT:
enter_room = (TC_CHANGE_ROOM ==
try_to_move_left (&game_info.where));
break;
case CMD_ENTER:
enter_room = (TC_CHANGE_ROOM ==
try_to_enter (&game_info.where));
break;
case CMD_MOVE_RIGHT:
enter_room = (TC_CHANGE_ROOM ==
try_to_move_right (&game_info.where));
break;
case CMD_TYPED:
if (handle_typing ()) {
enter_room = 1;
}
break;
case CMD_QUIT: return GAME_QUIT;
default: break;
}
// Repeat the same thing for the tux
cmd = get_tux_command();
switch (cmd) {
case CMD_UP: move_photo_down (); break;
case CMD_RIGHT: move_photo_left (); break;
case CMD_DOWN: move_photo_up (); break;
case CMD_LEFT: move_photo_right (); break;
case CMD_MOVE_LEFT:
enter_room = (TC_CHANGE_ROOM ==
try_to_move_left (&game_info.where));
break;
case CMD_ENTER:
enter_room = (TC_CHANGE_ROOM ==
try_to_enter (&game_info.where));
break;
case CMD_MOVE_RIGHT:
enter_room = (TC_CHANGE_ROOM ==
try_to_move_right (&game_info.where));
break;
case CMD_QUIT: return GAME_QUIT;
default: break;
}
/* If player wins the game, their room becomes NULL. */
if (NULL == game_info.where) {
return GAME_WON;
}
} /* end of the main event loop */
}
static int
_chat_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza,
void * const userdata)
{
xmpp_ctx_t *ctx = connection_get_ctx();
gchar *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
Jid *jid = jid_create(from);
// private message from chat room use full jid (room/nick)
if (muc_active(jid->barejid)) {
// determine if the notifications happened whilst offline
GTimeVal tv_stamp;
gboolean delayed = stanza_get_delay(stanza, &tv_stamp);
// check for and deal with message
xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY);
if (body != NULL) {
char *message = xmpp_stanza_get_text(body);
if (message != NULL) {
if (delayed) {
handle_delayed_private_message(jid->str, message, tv_stamp);
} else {
handle_incoming_private_message(jid->str, message);
}
xmpp_free(ctx, message);
}
}
jid_destroy(jid);
return 1;
// standard chat message, use jid without resource
} else {
// determine chatstate support of recipient
gboolean recipient_supports = FALSE;
if (stanza_contains_chat_state(stanza)) {
recipient_supports = TRUE;
}
// create or update chat session
if (!chat_session_exists(jid->barejid)) {
chat_session_start(jid->barejid, recipient_supports);
} else {
chat_session_set_recipient_supports(jid->barejid, recipient_supports);
}
// determine if the notifications happened whilst offline
GTimeVal tv_stamp;
gboolean delayed = stanza_get_delay(stanza, &tv_stamp);
// deal with chat states if recipient supports them
if (recipient_supports && (!delayed)) {
if (xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_COMPOSING) != NULL) {
handle_typing(jid->barejid);
} else if (xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_GONE) != NULL) {
handle_gone(jid->barejid);
} else if (xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_PAUSED) != NULL) {
// do something
} else if (xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_INACTIVE) != NULL) {
// do something
} else { // handle <active/>
// do something
}
}
// check for and deal with message
xmpp_stanza_t *body = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_BODY);
if (body != NULL) {
char *message = xmpp_stanza_get_text(body);
if (message != NULL) {
if (delayed) {
handle_delayed_message(jid->barejid, message, tv_stamp);
} else {
handle_incoming_message(jid->barejid, message);
}
xmpp_free(ctx, message);
}
}
jid_destroy(jid);
return 1;
}
}