// ------------------------------------------------------------------------------------
// shockwave_move()
//
// Simulate a single shockwave. If the shockwave radius exceeds outer_radius, then
// delete the shockwave.
//
// input: ojbp => object pointer that points to shockwave object
// frametime => time to simulate shockwave
//
void shockwave_move(object *shockwave_objp, float frametime)
{
shockwave *sw;
object *objp;
float blast,damage;
int i;
Assert(shockwave_objp->type == OBJ_SHOCKWAVE);
Assert(shockwave_objp->instance >= 0 && shockwave_objp->instance < MAX_SHOCKWAVES);
sw = &Shockwaves[shockwave_objp->instance];
// if the shockwave has a delay on it
if(sw->delay_stamp != -1){
if(timestamp_elapsed(sw->delay_stamp)){
sw->delay_stamp = -1;
} else {
return;
}
}
sw->time_elapsed += frametime;
/*
if ( sw->time_elapsed > sw->total_time ) {
shockwave_objp->flags |= OF_SHOULD_BE_DEAD;
}
*/
shockwave_set_framenum(shockwave_objp->instance);
sw->radius += (frametime * sw->speed);
if ( sw->radius > sw->outer_radius ) {
sw->radius = sw->outer_radius;
shockwave_objp->flags |= OF_SHOULD_BE_DEAD;
return;
}
// blast ships and asteroids
for ( objp = GET_FIRST(&obj_used_list); objp !=END_OF_LIST(&obj_used_list); objp = GET_NEXT(objp) ) {
if ( (objp->type != OBJ_SHIP) && (objp->type != OBJ_ASTEROID) ) {
continue;
}
if ( objp->type == OBJ_SHIP ) {
// don't blast navbuoys
if ( ship_get_SIF(objp->instance) & SIF_NAVBUOY ) {
continue;
}
}
// only apply damage to a ship once from a shockwave
for ( i = 0; i < sw->num_objs_hit; i++ ) {
if ( objp->signature == sw->obj_sig_hitlist[i] ){
break;
}
}
if ( i < sw->num_objs_hit ){
continue;
}
if ( weapon_area_calc_damage(objp, &sw->pos, sw->inner_radius, sw->outer_radius, sw->blast, sw->damage, &blast, &damage, sw->radius) == -1 ){
continue;
}
// okay, we have damage applied, record the object signature so we don't repeatedly apply damage
Assert(sw->num_objs_hit < SW_MAX_OBJS_HIT);
if ( sw->num_objs_hit >= SW_MAX_OBJS_HIT) {
sw->num_objs_hit--;
}
switch(objp->type) {
case OBJ_SHIP:
sw->obj_sig_hitlist[sw->num_objs_hit++] = objp->signature;
ship_apply_global_damage(objp, shockwave_objp, &sw->pos, damage );
weapon_area_apply_blast(NULL, objp, &sw->pos, blast, 1);
break;
case OBJ_ASTEROID:
asteroid_hit(objp, NULL, NULL, damage);
break;
default:
Int3();
break;
}
// If this shockwave hit the player, play shockwave impact sound
if ( objp == Player_obj ) {
snd_play( &Snds[SND_SHOCKWAVE_IMPACT], 0.0f, MAX(0.4f, damage/Weapon_info[sw->weapon_info_index].damage) );
}
} // end for
}
/**
* Simulate a single shockwave. If the shockwave radius exceeds outer_radius, then
* delete the shockwave.
*
* @param shockwave_objp object pointer that points to shockwave object
* @param frametime time to simulate shockwave
*/
void shockwave_move(object *shockwave_objp, float frametime)
{
shockwave *sw;
object *objp;
float blast,damage;
int i;
Assert(shockwave_objp->type == OBJ_SHOCKWAVE);
Assert(shockwave_objp->instance >= 0 && shockwave_objp->instance < MAX_SHOCKWAVES);
sw = &Shockwaves[shockwave_objp->instance];
// if the shockwave has a delay on it
if(sw->delay_stamp != -1){
if(timestamp_elapsed(sw->delay_stamp)){
sw->delay_stamp = -1;
} else {
return;
}
}
sw->time_elapsed += frametime;
shockwave_set_framenum(shockwave_objp->instance);
sw->radius += (frametime * sw->speed);
if ( sw->radius > sw->outer_radius ) {
sw->radius = sw->outer_radius;
shockwave_objp->flags |= OF_SHOULD_BE_DEAD;
return;
}
// blast ships and asteroids
// And (some) weapons
for ( objp = GET_FIRST(&obj_used_list); objp !=END_OF_LIST(&obj_used_list); objp = GET_NEXT(objp) ) {
if ( (objp->type != OBJ_SHIP) && (objp->type != OBJ_ASTEROID) && (objp->type != OBJ_WEAPON)) {
continue;
}
if ( objp->type == OBJ_WEAPON ) {
// only apply to missiles with hitpoints
weapon_info* wip = &Weapon_info[Weapons[objp->instance].weapon_info_index];
if (wip->weapon_hitpoints <= 0 || !(wip->wi_flags2 & WIF2_TAKES_SHOCKWAVE_DAMAGE))
continue;
if (sw->weapon_info_index >= 0) {
if (Weapon_info[sw->weapon_info_index].wi_flags2 & WIF2_CIWS) {
continue;
}
}
}
if ( objp->type == OBJ_SHIP ) {
// don't blast navbuoys
if ( ship_get_SIF(objp->instance) & SIF_NAVBUOY ) {
continue;
}
}
// only apply damage to a ship once from a shockwave
for ( i = 0; i < sw->num_objs_hit; i++ ) {
if ( objp->signature == sw->obj_sig_hitlist[i] ){
break;
}
}
if ( i < sw->num_objs_hit ){
continue;
}
if ( weapon_area_calc_damage(objp, &sw->pos, sw->inner_radius, sw->outer_radius, sw->blast, sw->damage, &blast, &damage, sw->radius) == -1 ){
continue;
}
// okay, we have damage applied, record the object signature so we don't repeatedly apply damage
Assert(sw->num_objs_hit < SW_MAX_OBJS_HIT);
if ( sw->num_objs_hit >= SW_MAX_OBJS_HIT) {
sw->num_objs_hit--;
}
weapon_info* wip = NULL;
switch(objp->type) {
case OBJ_SHIP:
sw->obj_sig_hitlist[sw->num_objs_hit++] = objp->signature;
// If we're doing an AoE Electronics shockwave, do the electronics stuff. -MageKing17
if ( (sw->weapon_info_index >= 0) && (Weapon_info[sw->weapon_info_index].wi_flags3 & WIF3_AOE_ELECTRONICS) && !(objp->flags & OF_INVULNERABLE) ) {
weapon_do_electronics_effect(objp, &sw->pos, sw->weapon_info_index);
}
ship_apply_global_damage(objp, shockwave_objp, &sw->pos, damage );
weapon_area_apply_blast(NULL, objp, &sw->pos, blast, 1);
break;
case OBJ_ASTEROID:
asteroid_hit(objp, NULL, NULL, damage);
break;
case OBJ_WEAPON:
wip = &Weapon_info[Weapons[objp->instance].weapon_info_index];
if (wip->armor_type_idx >= 0)
damage = Armor_types[wip->armor_type_idx].GetDamage(damage, shockwave_get_damage_type_idx(shockwave_objp->instance),1.0f);
objp->hull_strength -= damage;
if (objp->hull_strength < 0.0f) {
Weapons[objp->instance].lifeleft = 0.01f;
Weapons[objp->instance].weapon_flags |= WF_DESTROYED_BY_WEAPON;
}
break;
default:
Int3();
break;
}
// If this shockwave hit the player, play shockwave impact sound
if ( objp == Player_obj ) {
float full_damage, vol_scale;
if (sw->weapon_info_index >= 0) {
full_damage = Weapon_info[sw->weapon_info_index].damage;
} else {
full_damage = sw->damage;
}
if (full_damage != 0.0f) {
vol_scale = MAX(0.4f, damage/full_damage);
} else {
vol_scale = 1.0f;
}
snd_play( &Snds[SND_SHOCKWAVE_IMPACT], 0.0f, vol_scale );
}
} // end for
}
