void supernova_do_particles()
{
int idx;
vec3d a, b, ta, tb;
vec3d norm, sun_temp;
// no player ship
if((Player_obj == NULL) || (Player_ship == NULL)) {
return;
}
// timestamp
if((Supernova_particle_stamp == -1) || timestamp_elapsed(Supernova_particle_stamp)) {
Supernova_particle_stamp = timestamp(sn_particles);
// get particle norm
stars_get_sun_pos(0, &sun_temp);
vm_vec_add2(&sun_temp, &Player_obj->pos);
vm_vec_sub(&norm, &Player_obj->pos, &sun_temp);
vm_vec_normalize(&norm);
particle_emitter whee;
whee.max_life = 1.0f;
whee.min_life = 0.6f;
whee.max_vel = 50.0f;
whee.min_vel = 25.0f;
whee.normal_variance = 0.75f;
whee.num_high = 5;
whee.num_low = 2;
whee.min_rad = 0.5f;
whee.max_rad = 1.25f;
// emit
for(idx=0; idx<10; idx++) {
if ( Cmdline_old_collision_sys ) {
submodel_get_two_random_points(Ship_info[Player_ship->ship_info_index].model_num, 0, &ta, &tb);
} else {
submodel_get_two_random_points_better(Ship_info[Player_ship->ship_info_index].model_num, 0, &ta, &tb);
}
// rotate into world space
vm_vec_unrotate(&a, &ta, &Player_obj->orient);
vm_vec_add2(&a, &Player_obj->pos);
whee.pos = a;
whee.vel = norm;
vm_vec_scale(&whee.vel, 30.0f);
vm_vec_add2(&whee.vel, &Player_obj->phys_info.vel);
whee.normal = norm;
particle_emit(&whee, PARTICLE_FIRE, 0);
vm_vec_unrotate(&b, &tb, &Player_obj->orient);
vm_vec_add2(&b, &Player_obj->pos);
whee.pos = b;
particle_emit(&whee, PARTICLE_FIRE, 0);
}
}
}
/**
* Do various updates to debris: check if time to die, start fireballs
* Maybe delete debris if it's very far away from player.
*
* @param obj pointer to debris object
* @param frame_time time elapsed since last debris_move() called
*/
void debris_process_post(object * obj, float frame_time)
{
int i, num;
num = obj->instance;
int objnum = OBJ_INDEX(obj);
Assert( Debris[num].objnum == objnum );
debris *db = &Debris[num];
if ( db->is_hull ) {
MONITOR_INC(NumHullDebris,1);
radar_plot_object( obj );
if ( timestamp_elapsed(db->sound_delay) ) {
obj_snd_assign(objnum, SND_DEBRIS, &vmd_zero_vector, 0);
db->sound_delay = 0;
}
} else {
MONITOR_INC(NumSmallDebris,1);
}
if ( db->lifeleft >= 0.0f) {
db->lifeleft -= frame_time;
if ( db->lifeleft < 0.0f ) {
debris_start_death_roll(obj, db);
}
}
maybe_delete_debris(db); // Make this debris go away if it's very far away.
// ================== DO THE ELECTRIC ARCING STUFF =====================
if ( db->arc_frequency <= 0 ) {
return; // If arc_frequency <= 0, this piece has no arcs on it
}
if ( !timestamp_elapsed(db->fire_timeout) && timestamp_elapsed(db->next_fireball)) {
db->next_fireball = timestamp_rand(db->arc_frequency,db->arc_frequency*2 );
db->arc_frequency += 100;
if (db->is_hull) {
int n, n_arcs = ((rand()>>5) % 3)+1; // Create 1-3 sparks
vec3d v1, v2, v3, v4;
if ( Cmdline_old_collision_sys ) {
submodel_get_two_random_points( db->model_num, db->submodel_num, &v1, &v2 );
submodel_get_two_random_points( db->model_num, db->submodel_num, &v3, &v4 );
} else {
submodel_get_two_random_points_better( db->model_num, db->submodel_num, &v1, &v2 );
submodel_get_two_random_points_better( db->model_num, db->submodel_num, &v3, &v4 );
}
n = 0;
int a = 100, b = 1000;
int lifetime = (myrand()%((b)-(a)+1))+(a);
// Create the spark effects
for (i=0; i<MAX_DEBRIS_ARCS; i++ ) {
if ( !timestamp_valid( db->arc_timestamp[i] ) ) {
db->arc_timestamp[i] = timestamp(lifetime); // live up to a second
switch( n ) {
case 0:
db->arc_pts[i][0] = v1;
db->arc_pts[i][1] = v2;
break;
case 1:
db->arc_pts[i][0] = v2;
db->arc_pts[i][1] = v3;
break;
case 2:
db->arc_pts[i][0] = v2;
db->arc_pts[i][1] = v4;
break;
default:
Int3();
}
n++;
if ( n == n_arcs )
break; // Don't need to create anymore
}
}
// rotate v2 out of local coordinates into world.
// Use v2 since it is used in every bolt. See above switch().
vec3d snd_pos;
vm_vec_unrotate(&snd_pos, &v2, &obj->orient);
vm_vec_add2(&snd_pos, &obj->pos );
//Play a sound effect
if ( lifetime > 750 ) {
// 1.00 second effect
snd_play_3d( gamesnd_get_game_sound(SND_DEBRIS_ARC_05), &snd_pos, &View_position, obj->radius );
} else if ( lifetime > 500 ) {
// 0.75 second effect
snd_play_3d( gamesnd_get_game_sound(SND_DEBRIS_ARC_04), &snd_pos, &View_position, obj->radius );
} else if ( lifetime > 250 ) {
// 0.50 second effect
snd_play_3d( gamesnd_get_game_sound(SND_DEBRIS_ARC_03), &snd_pos, &View_position, obj->radius );
} else if ( lifetime > 100 ) {
// 0.25 second effect
snd_play_3d( gamesnd_get_game_sound(SND_DEBRIS_ARC_02), &snd_pos, &View_position, obj->radius );
} else {
// 0.10 second effect
snd_play_3d( gamesnd_get_game_sound(SND_DEBRIS_ARC_01), &snd_pos, &View_position, obj->radius );
}
}