// called once per frame to update the reticle gauges. Makes calls to
// ship_dumbfire_threat() and ship_lock_threat() and updates Threat_flags.
void hud_update_reticle( player *pp )
{
int rval;
ship *shipp;
// multiplayer clients won't call this routine
if ( MULTIPLAYER_CLIENT || MULTI_OBSERVER(Net_players[MY_NET_PLAYER_NUM]))
return;
shipp = &Ships[Objects[pp->objnum].instance];
if ( ship_dumbfire_threat(shipp) ) {
pp->threat_flags |= THREAT_DUMBFIRE;
pp->update_dumbfire_time = timestamp(THREAT_UPDATE_DUMBFIRE_TIME);
}
if ( timestamp_elapsed(pp->update_dumbfire_time) ) {
pp->update_dumbfire_time = timestamp(THREAT_UPDATE_DUMBFIRE_TIME);
pp->threat_flags &= ~THREAT_DUMBFIRE;
}
if ( timestamp_elapsed(pp->update_lock_time) ) {
pp->threat_flags &= ~(THREAT_LOCK | THREAT_ATTEMPT_LOCK);
pp->update_lock_time = timestamp(THREAT_UPDATE_LOCK_TIME);
rval = ship_lock_threat(shipp);
if ( rval == 1 ) {
pp->threat_flags |= THREAT_ATTEMPT_LOCK;
} else if ( rval == 2 ) {
pp->threat_flags |= THREAT_LOCK;
}
}
if(Player->threat_flags & THREAT_LOCK ) {
// a less hacked up version of the missile launch warning
hud_start_text_flash(XSTR("Launch", 1507), THREAT_LOCK_FLASH, fl2i(THREAT_LOCK_FLASH/2.0f));
}
if ( Player->threat_flags & (THREAT_ATTEMPT_LOCK) ) {
if ( timestamp_elapsed(Threat_lock_timer) ) {
Threat_lock_timer = timestamp(THREAT_LOCK_FLASH);
Threat_lock_frame++;
if ( Threat_lock_frame > 2 ) {
Threat_lock_frame = 1;
}
if ( (Threat_lock_frame == 2) && (Player->threat_flags & THREAT_ATTEMPT_LOCK ) ) {
snd_play( &Snds[ship_get_sound(Player_obj, SND_THREAT_FLASH)]);
}
}
}
}
/**
* Called when a ship disengages the afterburners.
*
* @param *objp pointer to the object starting afterburners
* @param key_released OPTIONAL parameter (default value 0) This is only used for the player object, to manage starting/stopping
*/
void afterburners_stop(object *objp, int key_released)
{
Assert( objp != NULL );
Assert( objp->instance >= 0 && objp->instance < MAX_SHIPS );
ship_info *sip;
ship *shipp;
shipp = &Ships[objp->instance];
Assert( shipp->ship_info_index >= 0 && shipp->ship_info_index < static_cast<int>(Ship_info.size()) );
sip = &Ship_info[shipp->ship_info_index];
if ( (objp->flags[Object::Object_Flags::Player_ship]) && key_released ) {
objp->phys_info.flags &= ~PF_AFTERBURNER_WAIT;
}
if ( !(sip->flags[Ship::Info_Flags::Afterburner]) ) {
nprintf(("Warning","Ship type %s does not have afterburner capability\n", sip->name));
return;
}
if ( !(objp->phys_info.flags & PF_AFTERBURNER_ON) ) {
return;
}
Script_system.SetHookObjects(1, "Ship", objp);
Script_system.RunCondition(CHA_AFTERBURNEND, 0, NULL, objp);
Script_system.RemHookVars(1, "Ship");
objp->phys_info.flags &= ~PF_AFTERBURNER_ON;
//Do anim
model_anim_start_type(shipp, TRIGGER_TYPE_AFTERBURNER, ANIMATION_SUBTYPE_ALL, -1);
if ( objp == Player_obj ) {
if ( !key_released ) {
snd_play( gamesnd_get_game_sound(ship_get_sound(objp, GameSounds::ABURN_FAIL)) );
}
if ( Player_afterburner_loop_id > -1 ) {
Player_disengage_timer = timestamp(DISENGAGE_TIME);
}
joy_ff_afterburn_off();
}
}
void cmeasure_maybe_alert_success(object *objp)
{
//Is this a countermeasure, and does it have a parent
if ( objp->type != OBJ_WEAPON || objp->parent < 0) {
return;
}
Assert(Weapon_info[Weapons[objp->instance].weapon_info_index].wi_flags[Weapon::Info_Flags::Cmeasure]);
if ( objp->parent == OBJ_INDEX(Player_obj) ) {
hud_start_text_flash(XSTR("Evaded", 1430), 800);
snd_play(gamesnd_get_game_sound(ship_get_sound(Player_obj, SND_MISSILE_EVADED_POPUP)));
} else if ( Objects[objp->parent].flags[Object::Object_Flags::Player_ship] ) {
send_countermeasure_success_packet( objp->parent );
}
}
// hud_calculate_lock_position() will determine where on the screen to draw the lock
// indicator, and will determine when a lock has occurred. If the lock indicator is not
// on the screen yet, hud_calculate_lock_start_pos() is called to pick a starting location
void hud_calculate_lock_position(float frametime)
{
ship_weapon *swp;
weapon_info *wip;
static float pixels_moved_while_locking;
static float pixels_moved_while_degrading;
static int Need_new_start_pos = 0;
static double accumulated_x_pixels, accumulated_y_pixels;
double int_portion;
static float last_dist_to_target;
static int catching_up;
static int maintain_lock_count = 0;
static float catch_up_distance = 0.0f;
double hypotenuse, delta_x, delta_y;
swp = &Player_ship->weapons;
wip = &Weapon_info[swp->secondary_bank_weapons[swp->current_secondary_bank]];
if (Player->target_in_lock_cone) {
if (!Players[Player_num].lock_indicator_visible) {
hud_calculate_lock_start_pos();
last_dist_to_target = 0.0f;
Players[Player_num].lock_indicator_x = Players[Player_num].lock_indicator_start_x;
Players[Player_num].lock_indicator_y = Players[Player_num].lock_indicator_start_y;
Players[Player_num].lock_indicator_visible = 1;
Players[Player_num].lock_time_to_target = i2fl(wip->min_lock_time);
catching_up = 0;
}
Need_new_start_pos = 1;
if (Player_ai->current_target_is_locked) {
Players[Player_num].lock_indicator_x = Player->current_target_sx;
Players[Player_num].lock_indicator_y = Player->current_target_sy;
return;
}
delta_x = Players[Player_num].lock_indicator_x - Player->current_target_sx;
delta_y = Players[Player_num].lock_indicator_y - Player->current_target_sy;
if (!delta_y && !delta_x) {
hypotenuse = 0;
}
else {
hypotenuse = _hypot(delta_y, delta_x);
}
Players[Player_num].lock_dist_to_target = (float)hypotenuse;
if (last_dist_to_target == 0) {
last_dist_to_target = Players[Player_num].lock_dist_to_target;
}
//nprintf(("Alan","dist to target: %.2f\n",Players[Player_num].lock_dist_to_target));
//nprintf(("Alan","last to target: %.2f\n\n",last_dist_to_target));
if (catching_up) {
//nprintf(("Alan","IN CATCH UP MODE catch_up_dist is %.2f\n",catch_up_distance));
if ( Players[Player_num].lock_dist_to_target < catch_up_distance )
catching_up = 0;
}
else {
//nprintf(("Alan","IN NORMAL MODE\n"));
if ( (Players[Player_num].lock_dist_to_target - last_dist_to_target) > 2.0f ) {
catching_up = 1;
catch_up_distance = last_dist_to_target + wip->catchup_pixel_penalty;
}
}
last_dist_to_target = Players[Player_num].lock_dist_to_target;
if (!catching_up) {
Players[Player_num].lock_time_to_target -= frametime;
if (Players[Player_num].lock_time_to_target < 0.0f)
Players[Player_num].lock_time_to_target = 0.0f;
}
float lock_pixels_per_sec;
if (Players[Player_num].lock_time_to_target > 0) {
lock_pixels_per_sec = Players[Player_num].lock_dist_to_target / Players[Player_num].lock_time_to_target;
} else {
lock_pixels_per_sec = i2fl(wip->lock_pixels_per_sec);
}
if (lock_pixels_per_sec > wip->lock_pixels_per_sec) {
lock_pixels_per_sec = i2fl(wip->lock_pixels_per_sec);
}
if (catching_up) {
pixels_moved_while_locking = wip->catchup_pixels_per_sec * frametime;
} else {
pixels_moved_while_locking = lock_pixels_per_sec * frametime;
}
if ((delta_x != 0) && (hypotenuse != 0)) {
accumulated_x_pixels += pixels_moved_while_locking * delta_x/hypotenuse;
}
if ((delta_y != 0) && (hypotenuse != 0)) {
accumulated_y_pixels += pixels_moved_while_locking * delta_y/hypotenuse;
}
if (fl_abs((float)accumulated_x_pixels) > 1.0f) {
modf(accumulated_x_pixels, &int_portion);
Players[Player_num].lock_indicator_x -= (int)int_portion;
if ( fl_abs((float)Players[Player_num].lock_indicator_x - (float)Player->current_target_sx) < fl_abs((float)int_portion) )
Players[Player_num].lock_indicator_x = Player->current_target_sx;
accumulated_x_pixels -= int_portion;
}
if (fl_abs((float)accumulated_y_pixels) > 1.0f) {
modf(accumulated_y_pixels, &int_portion);
Players[Player_num].lock_indicator_y -= (int)int_portion;
if ( fl_abs((float)Players[Player_num].lock_indicator_y - (float)Player->current_target_sy) < fl_abs((float)int_portion) )
Players[Player_num].lock_indicator_y = Player->current_target_sy;
accumulated_y_pixels -= int_portion;
}
if ( Missile_track_loop == -1 ) {
if (wip->hud_tracking_snd >= 0)
{
Missile_track_loop = snd_play_looping( &Snds[wip->hud_tracking_snd], 0.0f , -1, -1);
}
else
{
Missile_track_loop = snd_play_looping( &Snds[ship_get_sound(Player_obj, SND_MISSILE_TRACKING)], 0.0f , -1, -1);
}
}
if (!Players[Player_num].lock_time_to_target) {
if ( (Players[Player_num].lock_indicator_x == Player->current_target_sx) && (Players[Player_num].lock_indicator_y == Player->current_target_sy) ) {
if (maintain_lock_count++ > 1) {
Player_ai->current_target_is_locked = 1;
}
} else {
maintain_lock_count = 0;
}
}
} else {
if ( Missile_track_loop > -1 ) {
snd_stop(Missile_track_loop);
Missile_track_loop = -1;
}
Player_ai->current_target_is_locked = 0;
if (!Players[Player_num].lock_indicator_visible) {
return;
}
catching_up = 0;
last_dist_to_target = 0.0f;
if (Need_new_start_pos) {
hud_calculate_lock_start_pos();
Need_new_start_pos = 0;
accumulated_x_pixels = 0.0f;
accumulated_y_pixels = 0.0f;
}
delta_x = Players[Player_num].lock_indicator_x - Players[Player_num].lock_indicator_start_x;
delta_y = Players[Player_num].lock_indicator_y - Players[Player_num].lock_indicator_start_y;
if (!delta_y && !delta_x) {
hypotenuse = 0;
}
else {
hypotenuse = _hypot(delta_y, delta_x);
}
Players[Player_num].lock_time_to_target += frametime;
if (Players[Player_num].lock_time_to_target > wip->min_lock_time)
Players[Player_num].lock_time_to_target = i2fl(wip->min_lock_time);
pixels_moved_while_degrading = 2.0f * wip->lock_pixels_per_sec * frametime;
if ((delta_x != 0) && (hypotenuse != 0))
accumulated_x_pixels += pixels_moved_while_degrading * delta_x/hypotenuse;
if ((delta_y != 0) && (hypotenuse != 0))
accumulated_y_pixels += pixels_moved_while_degrading * delta_y/hypotenuse;
if (fl_abs((float)accumulated_x_pixels) > 1.0f) {
modf(accumulated_x_pixels, &int_portion);
Players[Player_num].lock_indicator_x -= (int)int_portion;
if ( fl_abs((float)Players[Player_num].lock_indicator_x - (float)Players[Player_num].lock_indicator_start_x) < fl_abs((float)int_portion) )
Players[Player_num].lock_indicator_x = Players[Player_num].lock_indicator_start_x;
accumulated_x_pixels -= int_portion;
}
if (fl_abs((float)accumulated_y_pixels) > 1.0f) {
modf(accumulated_y_pixels, &int_portion);
Players[Player_num].lock_indicator_y -= (int)int_portion;
if ( fl_abs((float)Players[Player_num].lock_indicator_y - (float)Players[Player_num].lock_indicator_start_y) < fl_abs((float)int_portion) )
Players[Player_num].lock_indicator_y = Players[Player_num].lock_indicator_start_y;
accumulated_y_pixels -= int_portion;
}
if ( (Players[Player_num].lock_indicator_x == Players[Player_num].lock_indicator_start_x) && (Players[Player_num].lock_indicator_y == Players[Player_num].lock_indicator_start_y) ) {
Players[Player_num].lock_indicator_visible = 0;
}
}
}
// hud_do_lock_indicator() manages missle locking, both the non-rendering calculations and the 2D HUD rendering
void hud_do_lock_indicator(float frametime)
{
ship_weapon *swp;
weapon_info *wip;
// if i'm a multiplayer observer, bail here
if((Game_mode & GM_MULTIPLAYER) && ((Net_player->flags & NETINFO_FLAG_OBSERVER) || (Player_obj->type == OBJ_OBSERVER)) ){
return;
}
Assert(Player_ai->target_objnum >= 0);
// be sure to unset this flag, then possibly set later in this function so that
// threat indicators work properly.
Player_ai->ai_flags.remove(AI::AI_Flags::Seek_lock);
if ( hud_abort_lock() ) {
hud_lock_reset();
return;
}
// if there is an EMP effect active, never update lock
if(emp_active_local()){
hud_lock_reset();
return;
}
swp = &Player_ship->weapons;
wip = &Weapon_info[swp->secondary_bank_weapons[swp->current_secondary_bank]];
Lock_start_dist = wip->min_lock_time * wip->lock_pixels_per_sec;
// if secondary weapons change, reset the lock
if ( hud_lock_secondary_weapon_changed(swp) ) {
hud_lock_reset();
}
Player_ai->last_secondary_index = swp->current_secondary_bank;
object *tobjp = &Objects[Player_ai->target_objnum];
vec3d dir_to_target;
vm_vec_normalized_dir(&dir_to_target, &tobjp->pos, &Player_obj->pos);
if ( !(wip->is_locked_homing()) ) {
hud_lock_reset();
return;
}
// Allow locking on ships and bombs (only targeted weapon allowed is a bomb, so don't bother checking flags)
if ( (Objects[Player_ai->target_objnum].type != OBJ_SHIP) && (Objects[Player_ai->target_objnum].type != OBJ_WEAPON) ) {
hud_lock_reset();
return;
}
// Javelins must lock on engines if locking on a ship and those must be in sight
if (wip->wi_flags[Weapon::Info_Flags::Homing_javelin] &&
tobjp->type == OBJ_SHIP &&
Player->locking_subsys != NULL) {
vec3d subobj_pos;
vm_vec_unrotate(&subobj_pos, &Player->locking_subsys->system_info->pnt, &tobjp->orient);
vm_vec_add2(&subobj_pos, &tobjp->pos);
int target_subsys_in_sight = ship_subsystem_in_sight(tobjp, Player->locking_subsys, &Player_obj->pos, &subobj_pos);
if (!target_subsys_in_sight || Player->locking_subsys->system_info->type != SUBSYSTEM_ENGINE) {
Player->locking_subsys =
ship_get_closest_subsys_in_sight(&Ships[tobjp->instance], SUBSYSTEM_ENGINE, &Player_obj->pos);
}
}
if (wip->wi_flags[Weapon::Info_Flags::Homing_javelin] &&
tobjp->type == OBJ_SHIP &&
Player->locking_subsys == NULL) {
Player->locking_subsys =
ship_get_closest_subsys_in_sight(&Ships[tobjp->instance], SUBSYSTEM_ENGINE, &Player_obj->pos);
if (Player->locking_subsys == NULL) {
hud_lock_reset();
return;
}
}
hud_lock_determine_lock_point(&lock_world_pos);
if ( !hud_lock_has_homing_point() ) {
Player->target_in_lock_cone=0;
}
hud_lock_check_if_target_in_lock_cone();
// check if the target is within range of the current secondary weapon. If it is not,
// a lock will not be detected
if ( !hud_lock_target_in_range() ) {
Player->target_in_lock_cone = 0;
}
// If locking on a subsystem, and not in sight... can't lock
// Changed by MK on 4/3/98. It was confusing me that my hornets would not lock on my target.
// It will now be confusing that they lock, but don't home on your subsystem, but I think that's preferable.
// Often you really care about destroying the target, not just the subsystem.
/*if ( Player_ai->targeted_subsys ) {
if ( !hud_lock_on_subsys_ok() ) {
Player->target_in_lock_cone=0;
}
}*/
if ( !Player->target_in_lock_cone ) {
Player->locking_on_center=0;
Player->locking_subsys_parent=-1;
Player->locking_subsys=NULL;
}
hud_calculate_lock_position(frametime);
if (!Players[Player_num].lock_indicator_visible)
return;
if (Player_ai->current_target_is_locked) {
if ( Missile_track_loop > -1 ) {
snd_stop(Missile_track_loop);
Missile_track_loop = -1;
if (wip->hud_locked_snd >= 0)
{
Missile_lock_loop = snd_play(&Snds[wip->hud_locked_snd]);
}
else
{
Missile_lock_loop = snd_play(&Snds[ship_get_sound(Player_obj, SND_MISSILE_LOCK)]);
}
}
}
else {
Player_ai->ai_flags.set(AI::AI_Flags::Seek_lock); // set this flag so multiplayer's properly track lock on other ships
if ( Missile_lock_loop != -1 && snd_is_playing(Missile_lock_loop) ) {
snd_stop(Missile_lock_loop);
Missile_lock_loop = -1;
}
}
}
/**
* Called when a ship engages the afterburners.
* This function should only be called once when afterburners first start. This is
* to start an appropriate sound effect and do any one-time initializations.
*
* @param *objp pointer to the object starting afterburners
*/
void afterburners_start(object *objp)
{
ship_info *sip;
ship *shipp;
float percent_left;
Assert( objp != NULL );
if(objp->type == OBJ_OBSERVER)
return;
Assert( objp->type == OBJ_SHIP);
Assert( objp->instance >= 0 && objp->instance < MAX_SHIPS );
shipp = &Ships[objp->instance];
Assert( shipp->ship_info_index >= 0 && shipp->ship_info_index < static_cast<int>(Ship_info.size()) );
sip = &Ship_info[shipp->ship_info_index];
// bail if afterburners are locked
if (shipp->flags[Ship::Ship_Flags::Afterburner_locked]) {
return;
}
if ( (objp->flags[Object::Object_Flags::Player_ship]) && (objp == Player_obj) ) {
unsigned int now;
now = timer_get_milliseconds();
if ( (now - Player_afterburner_start_time) < 1300 ) {
snd_play( gamesnd_get_game_sound(ship_get_sound(objp, GameSounds::ABURN_FAIL)) );
return;
}
if ( objp->phys_info.flags & PF_AFTERBURNER_WAIT ){
return;
}
}
if ( objp->phys_info.flags & PF_AFTERBURNER_ON ) {
return; // afterburners are already engaged, nothing to do here
}
//boosters take precedence
if (objp->phys_info.flags & PF_BOOSTER_ON)
return;
if ( !(sip->flags[Ship::Info_Flags::Afterburner]) ) {
return;
}
// Check if there is enough afterburner fuel
if ( (shipp->afterburner_fuel < MIN_AFTERBURNER_FUEL_TO_ENGAGE) && !MULTIPLAYER_CLIENT ) {
if ( objp == Player_obj ) {
snd_play( gamesnd_get_game_sound(ship_get_sound(objp, GameSounds::ABURN_FAIL)) );
}
return;
}
objp->phys_info.flags |= PF_AFTERBURNER_ON;
objp->phys_info.afterburner_decay = timestamp(ABURN_DECAY_TIME);
percent_left = shipp->afterburner_fuel / sip->afterburner_fuel_capacity;
//Do anim
model_anim_start_type(shipp, TRIGGER_TYPE_AFTERBURNER, ANIMATION_SUBTYPE_ALL, 1);
if ( objp == Player_obj ) {
Player_afterburner_start_time = timer_get_milliseconds();
Player_disengage_timer = 1;
Player_afterburner_vol = AFTERBURNER_DEFAULT_VOL;
if ( percent_left > AFTERBURNER_PERCENT_FOR_LOOP_SND ) {
Player_afterburner_loop_delay = timestamp(AFTERBURNER_LOOP_DELAY);
}
else {
Player_afterburner_loop_delay = 0;
}
snd_play( gamesnd_get_game_sound(ship_get_sound(objp, GameSounds::ABURN_ENGAGE)), 0.0f, 1.0f, SND_PRIORITY_MUST_PLAY );
joy_ff_afterburn_on();
} else {
snd_play_3d( gamesnd_get_game_sound(ship_get_sound(objp, GameSounds::ABURN_ENGAGE)), &objp->pos, &View_position, objp->radius );
}
Script_system.SetHookObjects(1, "Ship", objp);
Script_system.RunCondition(CHA_AFTERBURNSTART, 0, NULL, objp);
Script_system.RemHookVars(1, "Ship");
objp->phys_info.flags |= PF_AFTERBURNER_WAIT;
}
/**
* Update the state of the afterburner fuel remaining for an object using the afterburner.
*
* For the player ship, key_up_time() is called for the afterburner key to
* detect when afterburners disengage.
*
* @param *objp pointer to the object starting afterburners
* @param fl_frametime time in seconds of the last frame
*/
void afterburners_update(object *objp, float fl_frametime)
{
Assert( objp != NULL );
Assert( objp->type == OBJ_SHIP );
Assert( objp->instance >= 0 && objp->instance < MAX_SHIPS );
ship_info *sip;
ship *shipp;
static int volume_chg_timer = 1;
shipp = &Ships[objp->instance];
Assert( shipp->ship_info_index >= 0 && shipp->ship_info_index < static_cast<int>(Ship_info.size()) );
sip = &Ship_info[shipp->ship_info_index];
if ( (objp->flags[Object::Object_Flags::Player_ship] ) && (Game_mode & GM_DEAD) ) {
return;
}
if ( !(sip->flags[Ship::Info_Flags::Afterburner]) ) {
return; // nothing to update, afterburners are not even on the ship
}
//shut the afterburners off if we're using the booster tertiary
if ( objp->phys_info.flags & PF_BOOSTER_ON)
{
if (objp==Player_obj) afterburner_stop_sounds();
afterburners_stop(objp);
return;
}
if ( objp == Player_obj ) {
if ( !timestamp_elapsed(Player_disengage_timer) ) {
float remaining;
remaining = timestamp_until(Player_disengage_timer) / i2fl(DISENGAGE_TIME);
if ( remaining <= 0 ) {
afterburner_stop_sounds();
}
else {
snd_set_volume( Player_afterburner_loop_id, remaining*Player_afterburner_vol);
}
}
else {
if ( Player_disengage_timer != 1 ) {
afterburner_stop_sounds();
}
}
}
// single player, multiplayer servers, and clients for their own ships
if(!(Game_mode & GM_MULTIPLAYER) || MULTIPLAYER_MASTER || (objp == Player_obj)) {
if ( !(objp->phys_info.flags & PF_AFTERBURNER_ON) ) {
// Recover afterburner fuel
if ( shipp->afterburner_fuel < sip->afterburner_fuel_capacity ) {
float recharge_scale;
recharge_scale = Energy_levels[shipp->engine_recharge_index] * 2.0f * The_mission.ai_profile->afterburner_recharge_scale[Game_skill_level];
shipp->afterburner_fuel += (sip->afterburner_recover_rate * fl_frametime * recharge_scale);
if ( shipp->afterburner_fuel > sip->afterburner_fuel_capacity){
shipp->afterburner_fuel = sip->afterburner_fuel_capacity;
}
}
return;
} else {
// Check if there is enough afterburner fuel
if ( shipp->afterburner_fuel <= 0 ) {
shipp->afterburner_fuel = 0.0f;
afterburners_stop(objp);
return;
}
}
// afterburners are firing at this point
// Reduce the afterburner fuel
shipp->afterburner_fuel -= (sip->afterburner_burn_rate * fl_frametime);
if ( shipp->afterburner_fuel < 0.0f ) {
shipp->afterburner_fuel = 0.0f;
}
}
if ( objp == Player_obj ) {
if ( timestamp_elapsed(Player_afterburner_loop_delay) ) {
Player_afterburner_vol = AFTERBURNER_DEFAULT_VOL;
Player_afterburner_loop_delay = 0;
if ( Player_afterburner_loop_id == -1 ) {
Player_afterburner_loop_id = snd_play_looping( gamesnd_get_game_sound(ship_get_sound(objp, GameSounds::ABURN_LOOP)), 0.0f , -1, -1);
snd_set_volume(Player_afterburner_loop_id, Player_afterburner_vol);
}
}
// Reduce the volume of the afterburner sound if near the end
if ( timestamp_elapsed(volume_chg_timer) ) {
float percent_afterburner_left;
percent_afterburner_left = shipp->afterburner_fuel / sip->afterburner_fuel_capacity;
volume_chg_timer = timestamp(AFTERBURNER_VOLUME_UPDATE);
if ( percent_afterburner_left < AFTERBURNER_PERCENT_VOL_ATTENUATE ) {
Player_afterburner_vol = percent_afterburner_left*(1/AFTERBURNER_PERCENT_VOL_ATTENUATE)*AFTERBURNER_DEFAULT_VOL;
snd_set_volume(Player_afterburner_loop_id, Player_afterburner_vol);
}
} // end if (timestamp_elapsed(volume_chg_timer))
}
}
