// function which evaluates and processes the given event
void mission_process_event( int event )
{
int store_flags = Mission_events[event].flags;
int store_formula = Mission_events[event].formula;
int store_result = Mission_events[event].result;
int store_count = Mission_events[event].count;
int result, sindex;
bool bump_timestamp = false;
Log_event = false;
Directive_count = 0;
Event_index = event;
sindex = Mission_events[event].formula;
result = Mission_events[event].result;
// if chained, insure that previous event is true and next event is false
if (Mission_events[event].chain_delay >= 0) { // this indicates it's chained
// What everyone expected the chaining behavior to be, as specified in Karajorma's original fix to Mantis #82
if (Alternate_chaining_behavior) {
if (event > 0){
if (!Mission_events[event - 1].result || ((fix) Mission_events[event - 1].satisfied_time + i2f(Mission_events[event].chain_delay) > Missiontime)){
sindex = -1; // bypass evaluation
}
}
}
// Volition's original chaining behavior as used in retail and demonstrated in e.g. btm-01.fsm (or btm-01.fs2 in the Port)
else {
if (event > 0){
if (!Mission_events[event - 1].result || ((fix) Mission_events[event - 1].timestamp + i2f(Mission_events[event].chain_delay) > Missiontime)){
sindex = -1; // bypass evaluation
}
}
if ((event < Num_mission_events - 1) && Mission_events[event + 1].result && (Mission_events[event + 1].chain_delay >= 0)){
sindex = -1; // bypass evaluation
}
}
}
if (sindex >= 0) {
Sexp_useful_number = 1;
if (Snapshot_all_events || Mission_events[event].mission_log_flags != 0) {
Log_event = true;
Current_event_log_buffer = &Mission_events[event].event_log_buffer;
Current_event_log_variable_buffer = &Mission_events[event].event_log_variable_buffer;
Current_event_log_argument_buffer = &Mission_events[event].event_log_argument_buffer;
}
result = eval_sexp(sindex);
// if the directive count is a special value, deal with that first. Mark the event as a special
// event, and unmark it when the directive is true again.
if ( (Directive_count == DIRECTIVE_WING_ZERO) && !(Mission_events[event].flags & MEF_DIRECTIVE_SPECIAL) ) {
// make it special - which basically just means that its true until the next wave arrives
mission_event_set_directive_special(event);
Directive_count = 0;
} else if ( (Mission_events[event].flags & MEF_DIRECTIVE_SPECIAL) && Directive_count > 1 ) {
// make it non special
mission_event_unset_directive_special(event);
}
if (Mission_events[event].count || (Directive_count > 1)){
Mission_events[event].count = Directive_count;
}
if (Sexp_useful_number){
Mission_events[event].flags |= MEF_CURRENT;
}
if ((Mission_events[event].mission_log_flags != 0) || Snapshot_all_events){
maybe_write_to_event_log(result);
}
}
Log_event = false;
Event_index = -1;
Mission_events[event].result = result;
// if the sexpression is known false, then no need to evaluate anymore
if ((sindex >= 0) && (Sexp_nodes[sindex].value == SEXP_KNOWN_FALSE)) {
Mission_events[event].timestamp = (int) Missiontime;
Mission_events[event].satisfied_time = Missiontime;
// _argv[-1] - repeat_count of -1 would mean repeat indefinitely, so set to 0 instead.
Mission_events[event].repeat_count = 0;
Mission_events[event].formula = -1;
return;
}
if (result && !Mission_events[event].satisfied_time) {
Mission_events[event].satisfied_time = Missiontime;
if ( Mission_events[event].objective_text ) {
Mission_directive_sound_timestamp = timestamp(DIRECTIVE_SOUND_DELAY);
}
}
// decrement the trigger count. When at 0, set the repeat count to 0 so we don't eval this function anymore
if (result && (Mission_events[event].trigger_count != 0) && (Mission_events[event].flags & MEF_USING_TRIGGER_COUNT) ) {
if (Mission_events[event].trigger_count > 0)
Mission_events[event].trigger_count--;
if (Mission_events[event].trigger_count == 0) {
Mission_events[event].repeat_count = 0;
}
else {
bump_timestamp = true;
}
}
// decrement the repeat count. When at 0, don't eval this function anymore
if ( result || timestamp_valid(Mission_events[event].timestamp) ) {
// _argv[-1] - negative repeat count means repeat indefinitely.
if ( Mission_events[event].repeat_count > 0 )
Mission_events[event].repeat_count--;
if ( Mission_events[event].repeat_count == 0 ) {
Mission_events[event].timestamp = (int)Missiontime;
Mission_events[event].formula = -1;
if(Game_mode & GM_MULTIPLAYER){
// multiplayer missions (scoring is scaled in the multi_team_maybe_add_score() function)
multi_team_maybe_add_score(Mission_events[event].score, Mission_events[event].team);
multi_player_maybe_add_score(Mission_events[event].score, Mission_events[event].team);
} else {
// deal with the player's score
Player->stats.m_score += (int)(Mission_events[event].score * scoring_get_scale_factor());
}
}
// Set the timestamp for the next check on this event unless we only have a trigger count and no repeat count and
// this event didn't trigger this frame.
else if (bump_timestamp || (!((Mission_events[event].repeat_count == -1) && (Mission_events[event].flags & MEF_USING_TRIGGER_COUNT) && (Mission_events[event].trigger_count != 0)))) {
// set the timestamp to time out 'interval' seconds in the future.
Mission_events[event].timestamp = timestamp( Mission_events[event].interval * 1000 );
}
}
// see if anything has changed
if(MULTIPLAYER_MASTER && ((store_flags != Mission_events[event].flags) || (store_formula != Mission_events[event].formula) || (store_result != Mission_events[event].result) || (store_count != Mission_events[event].count)) ){
send_event_update_packet(event);
}
}
// function which evaluates and processes the given event
void mission_process_event( int event )
{
int store_flags = Mission_events[event].flags;
int store_formula = Mission_events[event].formula;
int store_result = Mission_events[event].result;
int store_count = Mission_events[event].count;
int result, sindex;
Directive_count = 0;
Event_index = event;
sindex = Mission_events[event].formula;
result = Mission_events[event].result;
// if chained, insure that previous event is true and next event is false
if (Mission_events[event].chain_delay >= 0) { // this indicates it's chained
if (event > 0){
if (!Mission_events[event - 1].result || ((fix) Mission_events[event - 1].timestamp + i2f(Mission_events[event].chain_delay) > Missiontime)){
sindex = -1; // bypass evaluation
}
}
if ((event < Num_mission_events - 1) && Mission_events[event + 1].result && (Mission_events[event + 1].chain_delay >= 0)){
sindex = -1; // bypass evaluation
}
}
if (sindex >= 0) {
Sexp_useful_number = 1;
result = eval_sexp(sindex);
// if the directive count is a special value, deal with that first. Mark the event as a special
// event, and unmark it when the directive is true again.
if ( (Directive_count == DIRECTIVE_WING_ZERO) && !(Mission_events[event].flags & MEF_DIRECTIVE_SPECIAL) ) {
// make it special - which basically just means that its true until the next wave arrives
mission_event_set_directive_special(event);
Directive_count = 0;
} else if ( (Mission_events[event].flags & MEF_DIRECTIVE_SPECIAL) && Directive_count > 1 ) {
// make it non special
mission_event_unset_directive_special(event);
}
if (Mission_events[event].count || (Directive_count > 1)){
Mission_events[event].count = Directive_count;
}
if (Sexp_useful_number){
Mission_events[event].flags |= MEF_CURRENT;
}
}
Event_index = 0;
Mission_events[event].result = result;
// if the sexpression is known false, then no need to evaluate anymore
if ((sindex >= 0) && (Sexp_nodes[sindex].value == SEXP_KNOWN_FALSE)) {
Mission_events[event].timestamp = (int) Missiontime;
Mission_events[event].satisfied_time = Missiontime;
Mission_events[event].repeat_count = -1;
Mission_events[event].formula = -1;
return;
}
if (result && !Mission_events[event].satisfied_time) {
Mission_events[event].satisfied_time = Missiontime;
if ( Mission_events[event].objective_text ) {
Mission_directive_sound_timestamp = timestamp(DIRECTIVE_SOUND_DELAY);
}
}
// decrement the repeat count. When at 0, don't eval this function anymore
if ( result || timestamp_valid(Mission_events[event].timestamp) ) {
Mission_events[event].repeat_count--;
if ( Mission_events[event].repeat_count <= 0 ) {
Mission_events[event].timestamp = (int)Missiontime;
Mission_events[event].formula = -1;
if(Game_mode & GM_MULTIPLAYER){
// squad war
multi_team_maybe_add_score((int)(Mission_events[event].score * scoring_get_scale_factor()), Mission_events[event].team);
} else {
// deal with the player's score
Player->stats.m_score += (int)(Mission_events[event].score * scoring_get_scale_factor());
}
} else {
// set the timestamp to time out 'interval' seconds in the future. We must also reset the
// value at the sexpresion node to unknown so that it will get reevaled
Mission_events[event].timestamp = timestamp( Mission_events[event].interval * 1000 );
// Sexp_nodes[Mission_events[event].formula].value = SEXP_UNKNOWN;
}
}
// see if anything has changed
if(MULTIPLAYER_MASTER && ((store_flags != Mission_events[event].flags) || (store_formula != Mission_events[event].formula) || (store_result != Mission_events[event].result) || (store_count != Mission_events[event].count)) ){
send_event_update_packet(event);
}
}