/**
* Checks ship-weapon collisions.
* @param pair obj_pair pointer to the two objects. pair->a is ship and pair->b is weapon.
* @return 1 if all future collisions between these can be ignored
*/
int collide_ship_weapon( obj_pair * pair )
{
int did_hit;
object *ship = pair->a;
object *weapon_obj = pair->b;
Assert( ship->type == OBJ_SHIP );
Assert( weapon_obj->type == OBJ_WEAPON );
ship_info *sip = &Ship_info[Ships[ship->instance].ship_info_index];
// Don't check collisions for player if past first warpout stage.
if ( Player->control_mode > PCM_WARPOUT_STAGE1) {
if ( ship == Player_obj )
return 0;
}
if (reject_due_collision_groups(ship, weapon_obj))
return 0;
// Cull lasers within big ship spheres by casting a vector forward for (1) exit sphere or (2) lifetime of laser
// If it does hit, don't check the pair until about 200 ms before collision.
// If it does not hit and is within error tolerance, cull the pair.
if ( (sip->is_big_or_huge()) && (Weapon_info[Weapons[weapon_obj->instance].weapon_info_index].subtype == WP_LASER) ) {
// Check when within ~1.1 radii.
// This allows good transition between sphere checking (leaving the laser about 200 ms from radius) and checking
// within the sphere with little time between. There may be some time for "small" big ships
// Note: culling ships with auto spread shields seems to waste more performance than it saves,
// so we're not doing that here
if ( !(sip->flags[Ship::Info_Flags::Auto_spread_shields]) && vm_vec_dist_squared(&ship->pos, &weapon_obj->pos) < (1.2f*ship->radius*ship->radius) ) {
return check_inside_radius_for_big_ships( ship, weapon_obj, pair );
}
}
did_hit = ship_weapon_check_collision( ship, weapon_obj );
if ( !did_hit ) {
// Since we didn't hit, check to see if we can disable all future collisions
// between these two.
return weapon_will_never_hit( weapon_obj, ship, pair );
}
return 0;
}
// Checks ship-weapon collisions. pair->a is ship and pair->b is weapon.
// Returns 1 if all future collisions between these can be ignored
int collide_ship_weapon( obj_pair * pair )
{
int did_hit;
object *ship = pair->a;
object *weapon = pair->b;
Assert( ship->type == OBJ_SHIP );
Assert( weapon->type == OBJ_WEAPON );
// Don't check collisions for player if past first warpout stage.
if ( Player->control_mode > PCM_WARPOUT_STAGE1) {
if ( ship == Player_obj )
return 0;
}
// Cull lasers within big ship spheres by casting a vector forward for (1) exit sphere or (2) lifetime of laser
// If it does hit, don't check the pair until about 200 ms before collision.
// If it does not hit and is within error tolerance, cull the pair.
if ( (Ship_info[Ships[ship->instance].ship_info_index].flags & (SIF_BIG_SHIP | SIF_HUGE_SHIP)) && (Weapon_info[Weapons[weapon->instance].weapon_info_index].subtype == WP_LASER) ) {
// if ( (ship->radius > 50) && (Weapon_info[Weapons[weapon->instance].weapon_info_index].subtype == WP_LASER) ) {
// Check when within ~1.1 radii.
// This allows good transition between sphere checking (leaving the laser about 200 ms from radius) and checking
// within the sphere with little time between. There may be some time for "small" big ships
if ( vm_vec_dist_squared(&ship->pos, &weapon->pos) < (1.2f*ship->radius*ship->radius) ) {
return check_inside_radius_for_big_ships( ship, weapon, pair );
}
}
// demo_do_rand_test();
did_hit = ship_weapon_check_collision( ship, weapon );
// demo_do_rand_test();
if ( !did_hit ) {
// Since we didn't hit, check to see if we can disable all future collisions
// between these two.
return weapon_will_never_hit( weapon, ship, pair );
}
return 0;
}
