void
client_main_loop (void)
{
int quit = 0;
int engine_updated = 0;
/* Set up the game */
reset_start_time ();
update_avail_modules (0);
screen_full_refresh ();
if (no_init_help == 0) {
block_help_exit = 1;
help_flag = 1;
if (make_dir_ok_flag) {
activate_help ("ask-dir.hlp");
make_dir_ok_flag = 0;
} else {
activate_help ("opening.hlp");
}
}
/* Set speed */
#if defined (CS_PROFILE) || defined (START_FAST_SPEED)
select_fast ();
#else
select_medium ();
#endif
/* Main Loop */
do {
int key;
/* Get timestamp for this iteration */
get_real_time();
/* Process events */
#if defined (LC_X11)
call_event ();
key = x_key_value;
x_key_value = 0;
#elif defined (WIN32)
call_event ();
key = GetKeystroke ();
#else
mouse_update ();
key = vga_getkey ();
#endif
/* nothing happened if key == 0 XXX: right? */
/* GCS: I'm not sure */
if (key != 0) {
process_keystrokes (key);
}
/* Simulate the timestep */
quit = execute_timestep ();
} while (quit == 0);
}
int
main (int argc, char *argv[])
{
char* load_filename;
/* Initialize some global variables */
initialize_server ();
/* Set up the paths to certain files and directories */
init_path_strings ();
#ifndef CS_PROFILE
#ifdef SEED_RAND
srand (time (0));
#endif
#endif
init_types ();
initialize_tax_rates ();
reset_start_time ();
load_filename = parse_server_args (argc, argv);
if (load_filename && file_exists(load_filename)) {
printf ("Server is trying to load: %s\n", load_filename);
load_city (load_filename);
zoom_originx = main_screen_originx;
zoom_originy = main_screen_originy;
} else {
engine_new_city (&zoom_originx, &zoom_originy, 1);
}
printf ("Server starting main loop!\n");
while (1) {
sniff_packets ();
engine_do_time_step ();
get_real_time ();
send_periodic_messages ();
if (total_time % 1000 == 0) {
debug_print_stats ();
}
}
return 0;
}
void initLincity()
{
initLCengine();
reset_start_time ();
screen_full_refresh ();
//load current game if it exists
//ldsvguts.cpp load_saved_city (char *s)
//does not work if file is missing...
char* s = "9_currentGameNG.scn";
char *cname = (char *) malloc (strlen (lc_save_dir) + strlen (s) + 2);
sprintf (cname, "%s%c%s", lc_save_dir, PATH_SLASH, s);
if( ! loadCityNG( std::string( cname ) ) ) {
//create a new City with village just in case
new_city( &main_screen_originx, &main_screen_originy, 1 );
}
free (cname);
}
/* intercept the bus messages from our children. We watch for the ASYNC_START
* message with is posted by the elements (sinks) that require a reset of the
* running_time after a flush. ASYNC_START also brings the pipeline back into
* the PAUSED, pending PAUSED state. When the ASYNC_DONE message is received the
* pipeline will redistribute the new base_time and will bring the elements back
* to the desired state of the pipeline. */
static void
gst_pipeline_handle_message (GstBin * bin, GstMessage * message)
{
GstPipeline *pipeline = GST_PIPELINE_CAST (bin);
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_RESET_TIME:
{
GstClockTime running_time;
gst_message_parse_reset_time (message, &running_time);
/* reset our running time if we need to distribute a new base_time to the
* children. */
reset_start_time (pipeline, running_time);
break;
}
case GST_MESSAGE_CLOCK_LOST:
{
GstClock *clock;
gst_message_parse_clock_lost (message, &clock);
GST_OBJECT_LOCK (bin);
if (clock == GST_ELEMENT_CAST (bin)->clock) {
GST_DEBUG_OBJECT (bin, "Used clock '%s' got lost",
GST_OBJECT_NAME (clock));
pipeline->priv->update_clock = TRUE;
}
GST_OBJECT_UNLOCK (bin);
}
default:
break;
}
GST_BIN_CLASS (parent_class)->handle_message (bin, message);
}
/* MT safe */
static GstStateChangeReturn
gst_pipeline_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn result = GST_STATE_CHANGE_SUCCESS;
GstPipeline *pipeline = GST_PIPELINE_CAST (element);
GstClock *clock;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
GST_OBJECT_LOCK (element);
if (element->bus)
gst_bus_set_flushing (element->bus, FALSE);
GST_OBJECT_UNLOCK (element);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
GST_OBJECT_LOCK (element);
pipeline->priv->update_clock = TRUE;
GST_OBJECT_UNLOCK (element);
/* READY to PAUSED starts running_time from 0 */
reset_start_time (pipeline, 0);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
{
GstClockTime now, start_time, last_start_time, delay;
gboolean update_clock;
GstClock *cur_clock;
GST_DEBUG_OBJECT (element, "selecting clock and base_time");
GST_OBJECT_LOCK (element);
cur_clock = element->clock;
if (cur_clock)
gst_object_ref (cur_clock);
/* get the desired running_time of the first buffer aka the start_time */
start_time = GST_ELEMENT_START_TIME (pipeline);
last_start_time = pipeline->priv->last_start_time;
pipeline->priv->last_start_time = start_time;
/* see if we need to update the clock */
update_clock = pipeline->priv->update_clock;
pipeline->priv->update_clock = FALSE;
delay = pipeline->delay;
GST_OBJECT_UNLOCK (element);
/* running time changed, either with a PAUSED or a flush, we need to check
* if there is a new clock & update the base time */
/* only do this for top-level, however */
if (GST_OBJECT_PARENT (element) == NULL &&
(update_clock || last_start_time != start_time)) {
GST_DEBUG_OBJECT (pipeline, "Need to update start_time");
/* when going to PLAYING, select a clock when needed. If we just got
* flushed, we don't reselect the clock. */
if (update_clock) {
GST_DEBUG_OBJECT (pipeline, "Need to update clock.");
clock = gst_element_provide_clock (element);
} else {
GST_DEBUG_OBJECT (pipeline,
"Don't need to update clock, using old clock.");
/* only try to ref if cur_clock is not NULL */
if (cur_clock)
gst_object_ref (cur_clock);
clock = cur_clock;
}
if (clock) {
now = gst_clock_get_time (clock);
} else {
GST_DEBUG_OBJECT (pipeline, "no clock, using base time of NONE");
now = GST_CLOCK_TIME_NONE;
}
if (clock != cur_clock) {
/* now distribute the clock (which could be NULL). If some
* element refuses the clock, this will return FALSE and
* we effectively fail the state change. */
if (!gst_element_set_clock (element, clock))
goto invalid_clock;
/* if we selected and distributed a new clock, let the app
* know about it */
gst_element_post_message (element,
gst_message_new_new_clock (GST_OBJECT_CAST (element), clock));
}
if (clock)
gst_object_unref (clock);
if (start_time != GST_CLOCK_TIME_NONE && now != GST_CLOCK_TIME_NONE) {
GstClockTime new_base_time = now - start_time + delay;
GST_DEBUG_OBJECT (element,
"start_time=%" GST_TIME_FORMAT ", now=%" GST_TIME_FORMAT
", base_time %" GST_TIME_FORMAT,
GST_TIME_ARGS (start_time), GST_TIME_ARGS (now),
GST_TIME_ARGS (new_base_time));
gst_element_set_base_time (element, new_base_time);
} else {
GST_DEBUG_OBJECT (pipeline,
"NOT adjusting base_time because start_time is NONE");
}
} else {
GST_DEBUG_OBJECT (pipeline,
"NOT adjusting base_time because we selected one before");
}
if (cur_clock)
gst_object_unref (cur_clock);
break;
}
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
{
/* we take a start_time snapshot before calling the children state changes
* so that they know about when the pipeline PAUSED. */
pipeline_update_start_time (element);
break;
}
case GST_STATE_CHANGE_PAUSED_TO_READY:
reset_start_time (pipeline, 0);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
}
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
{
/* Take a new snapshot of the start_time after calling the state change on
* all children. This will be the running_time of the pipeline when we go
* back to PLAYING */
pipeline_update_start_time (element);
break;
}
case GST_STATE_CHANGE_PAUSED_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
{
GstBus *bus;
gboolean auto_flush;
/* grab some stuff before we release the lock to flush out the bus */
GST_OBJECT_LOCK (element);
if ((bus = element->bus))
gst_object_ref (bus);
auto_flush = pipeline->priv->auto_flush_bus;
GST_OBJECT_UNLOCK (element);
if (bus) {
if (auto_flush) {
gst_bus_set_flushing (bus, TRUE);
} else {
GST_INFO_OBJECT (element, "not flushing bus, auto-flushing disabled");
}
gst_object_unref (bus);
}
break;
}
}
return result;
/* ERRORS */
invalid_clock:
{
/* we generate this error when the selected clock was not
* accepted by some element */
GST_ELEMENT_ERROR (pipeline, CORE, CLOCK,
(_("Selected clock cannot be used in pipeline.")),
("Pipeline cannot operate with selected clock"));
GST_DEBUG_OBJECT (pipeline,
"Pipeline cannot operate with selected clock %p", clock);
if (clock)
gst_object_unref (clock);
return GST_STATE_CHANGE_FAILURE;
}
}
