void Missile::TimeStepUpdate(const float timeStep)
{
const vector3d thrust=GetActualLinThrust();
AddRelForce( thrust );
AddRelTorque( GetActualAngThrust() );
DynamicBody::TimeStepUpdate(timeStep);
Propulsion::UpdateFuel(timeStep);
const float MISSILE_DETECTION_RADIUS = 100.0f;
if (!m_owner) {
Explode();
} else if (m_armed) {
Space::BodyNearList nearby;
Pi::game->GetSpace()->GetBodiesMaybeNear(this, MISSILE_DETECTION_RADIUS, nearby);
for (Space::BodyNearIterator i = nearby.begin(); i != nearby.end(); ++i) {
if (*i == this) continue;
double dist = ((*i)->GetPosition() - GetPosition()).Length();
if (dist < MISSILE_DETECTION_RADIUS) {
Explode();
break;
}
}
}
}
Ship::ECMResult Ship::UseECM()
{
int ecm_power_cap = 0;
Properties().Get("ecm_power_cap", ecm_power_cap);
if (m_ecmRecharge > 0.0f) return ECM_RECHARGING;
if (ecm_power_cap > 0) {
Sound::BodyMakeNoise(this, "ECM", 1.0f);
m_ecmRecharge = GetECMRechargeTime();
// damage neaby missiles
const float ECM_RADIUS = 4000.0f;
Space::BodyNearList nearby;
Pi::game->GetSpace()->GetBodiesMaybeNear(this, ECM_RADIUS, nearby);
for (Space::BodyNearIterator i = nearby.begin(); i != nearby.end(); ++i) {
if ((*i)->GetFrame() != GetFrame()) continue;
if (!(*i)->IsType(Object::MISSILE)) continue;
double dist = ((*i)->GetPosition() - GetPosition()).Length();
if (dist < ECM_RADIUS) {
// increasing chance of destroying it with proximity
if (Pi::rng.Double() > (dist / ECM_RADIUS)) {
static_cast<Missile*>(*i)->ECMAttack(ecm_power_cap);
}
}
}
return ECM_ACTIVATED;
}
else return ECM_NOT_INSTALLED;
}
void Ship::UseECM()
{
const Equip::Type t = m_equipment.Get(Equip::SLOT_ECM);
if (m_ecmRecharge > 0.0f) return;
if (t != Equip::NONE) {
Sound::BodyMakeNoise(this, "ECM", 1.0f);
m_ecmRecharge = GetECMRechargeTime();
// damage neaby missiles
const float ECM_RADIUS = 4000.0f;
Space::BodyNearList nearby;
Pi::game->GetSpace()->GetBodiesMaybeNear(this, ECM_RADIUS, nearby);
for (Space::BodyNearIterator i = nearby.begin(); i != nearby.end(); ++i) {
if ((*i)->GetFrame() != GetFrame()) continue;
if (!(*i)->IsType(Object::MISSILE)) continue;
double dist = ((*i)->GetPosition() - GetPosition()).Length();
if (dist < ECM_RADIUS) {
// increasing chance of destroying it with proximity
if (Pi::rng.Double() > (dist / ECM_RADIUS)) {
static_cast<Missile*>(*i)->ECMAttack(Equip::types[t].pval);
}
}
}
}
}
void Sensors::Update(float time)
{
PROFILE_SCOPED();
if (m_owner != Pi::player) return;
PopulateStaticContacts(); //no need to do all the time
//Find nearby contacts, same range as radar scanner. It should use these
//contacts, worldview labels too.
Space::BodyNearList nearby;
Pi::game->GetSpace()->GetBodiesMaybeNear(m_owner, 100000.0f, nearby);
for (Space::BodyNearIterator i = nearby.begin(); i != nearby.end(); ++i) {
if ((*i) == m_owner || !(*i)->IsType(Object::SHIP)) continue;
if ((*i)->IsDead()) continue;
auto cit = m_radarContacts.begin();
while (cit != m_radarContacts.end()) {
if (cit->body == (*i)) break;
++cit;
}
//create new contact or refresh old
if (cit == m_radarContacts.end()) {
m_radarContacts.push_back(RadarContact());
RadarContact &rc = m_radarContacts.back();
rc.body = (*i);
rc.iff = CheckIFF(rc.body);
rc.trail = new HudTrail(rc.body, IFFColor(rc.iff));
} else {
cit->fresh = true;
}
}
//update contacts and delete stale ones
auto it = m_radarContacts.begin();
while (it != m_radarContacts.end()) {
if (!it->fresh) {
m_radarContacts.erase(it++);
} else {
const Ship *ship = dynamic_cast<Ship *>(it->body);
if (ship && Ship::FLYING == ship->GetFlightState()) {
it->distance = m_owner->GetPositionRelTo(it->body).Length();
it->trail->Update(time);
} else {
it->trail->Reset(nullptr);
}
it->fresh = false;
++it;
}
}
}
void Missile::TimeStepUpdate(const float timeStep)
{
Ship::TimeStepUpdate(timeStep);
const float MISSILE_DETECTION_RADIUS = 100.0f;
if (!m_owner) {
Explode();
} else if (m_armed) {
Space::BodyNearList nearby;
Pi::game->GetSpace()->GetBodiesMaybeNear(this, MISSILE_DETECTION_RADIUS, nearby);
for (Space::BodyNearIterator i = nearby.begin(); i != nearby.end(); ++i) {
if (*i == this) continue;
double dist = ((*i)->GetPosition() - GetPosition()).Length();
if (dist < MISSILE_DETECTION_RADIUS) {
Explode();
break;
}
}
}
}
void Missile::Explode()
{
Pi::game->GetSpace()->KillBody(this);
const double damageRadius = 200.0;
const double kgDamage = 10000.0;
CollisionContact dummy;
Space::BodyNearList nearby;
Pi::game->GetSpace()->GetBodiesMaybeNear(this, damageRadius, nearby);
for (Space::BodyNearIterator i = nearby.begin(); i != nearby.end(); ++i) {
if ((*i)->GetFrame() != GetFrame()) continue;
double dist = ((*i)->GetPosition() - GetPosition()).Length();
if (dist < damageRadius) {
// linear damage decay with distance
(*i)->OnDamage(m_owner, kgDamage * (damageRadius - dist) / damageRadius, dummy);
if ((*i)->IsType(Object::SHIP))
LuaEvent::Queue("onShipHit", dynamic_cast<Ship*>(*i), m_owner);
}
}
Sfx::Add(this, Sfx::TYPE_EXPLOSION);
}
void ScannerWidget::Update()
{
if(Pi::IsScannerCompact() != isCompact) {
InitScaling();
GenerateBaseGeometry();
GenerateRingsAndSpokes();
}
m_contacts.clear();
int scanner_cap = 0;
Pi::player->Properties().Get("scanner_cap", scanner_cap);
if (scanner_cap <= 0) {
m_mode = SCANNER_MODE_AUTO;
m_currentRange = m_manualRange = m_targetRange = SCANNER_RANGE_MIN;
return;
}
// range priority is combat target > ship/missile > nav target > other
enum { RANGE_MAX, RANGE_FAR_OTHER, RANGE_NAV, RANGE_FAR_SHIP, RANGE_COMBAT } range_type = RANGE_MAX;
float combat_dist = 0, far_ship_dist = 0, nav_dist = 0, far_other_dist = 0;
// collect the bodies to be displayed, and if AUTO, distances
Space::BodyNearList nearby;
Pi::game->GetSpace()->GetBodiesMaybeNear(Pi::player, SCANNER_RANGE_MAX, nearby);
for (Space::BodyNearIterator i = nearby.begin(); i != nearby.end(); ++i) {
if ((*i) == Pi::player) continue;
float dist = float((*i)->GetPositionRelTo(Pi::player).Length());
Contact c;
c.type = (*i)->GetType();
c.pos = (*i)->GetPositionRelTo(Pi::player);
c.isSpecial = false;
switch ((*i)->GetType()) {
case Object::MISSILE:
// player's own missiles are ignored for range calc but still shown
if (static_cast<const Missile*>(*i)->GetOwner() == Pi::player) {
c.isSpecial = true;
break;
}
// else fall through
case Object::SHIP: {
const Ship *s = static_cast<const Ship*>(*i);
if (s->GetFlightState() != Ship::FLYING && s->GetFlightState() != Ship::LANDED)
continue;
if ((*i) == Pi::player->GetCombatTarget()) c.isSpecial = true;
if (m_mode == SCANNER_MODE_AUTO && range_type != RANGE_COMBAT) {
if (c.isSpecial == true) {
combat_dist = dist;
range_type = RANGE_COMBAT;
}
else if (dist > far_ship_dist) {
far_ship_dist = dist;
range_type = RANGE_FAR_SHIP;
}
}
break;
}
case Object::SPACESTATION:
case Object::CARGOBODY:
case Object::HYPERSPACECLOUD:
if ((*i) == Pi::player->GetNavTarget()) c.isSpecial = true;
if (m_mode == SCANNER_MODE_AUTO && range_type < RANGE_NAV) {
if (c.isSpecial == true) {
nav_dist = dist;
range_type = RANGE_NAV;
}
else if (dist > far_other_dist) {
far_other_dist = dist;
range_type = RANGE_FAR_OTHER;
}
}
break;
default:
continue;
}
m_contacts.push_back(c);
}
if (KeyBindings::increaseScanRange.IsActive()) {
if (m_mode == SCANNER_MODE_AUTO) {
m_manualRange = m_targetRange;
m_mode = SCANNER_MODE_MANUAL;
}
else
m_manualRange = m_currentRange;
m_manualRange = Clamp(m_manualRange * 1.05f, SCANNER_RANGE_MIN, SCANNER_RANGE_MAX);
}
else if (KeyBindings::decreaseScanRange.IsActive()) {
if (m_mode == SCANNER_MODE_AUTO) {
m_manualRange = m_targetRange;
m_mode = SCANNER_MODE_MANUAL;
}
else
m_manualRange = m_currentRange;
m_manualRange = Clamp(m_manualRange * 0.95f, SCANNER_RANGE_MIN, SCANNER_RANGE_MAX);
}
if (m_mode == SCANNER_MODE_AUTO) {
switch (range_type) {
case RANGE_COMBAT:
m_targetRange = Clamp(combat_dist * A_BIT, SCANNER_RANGE_MIN, SCANNER_RANGE_MAX);
break;
case RANGE_FAR_SHIP:
m_targetRange = Clamp(far_ship_dist * A_BIT, SCANNER_RANGE_MIN, SCANNER_RANGE_MAX);
break;
case RANGE_NAV:
m_targetRange = Clamp(nav_dist * A_BIT, SCANNER_RANGE_MIN, SCANNER_RANGE_MAX);
break;
case RANGE_FAR_OTHER:
m_targetRange = Clamp(far_other_dist * A_BIT, SCANNER_RANGE_MIN, SCANNER_RANGE_MAX);
break;
default:
m_targetRange = SCANNER_RANGE_MAX;
break;
}
}
else
m_targetRange = m_manualRange;
}
void Ship::UpdateAlertState()
{
// no alerts if no scanner
if (m_equipment.Get(Equip::SLOT_SCANNER) == Equip::NONE) {
// clear existing alert state if there was one
if (GetAlertState() != ALERT_NONE) {
SetAlertState(ALERT_NONE);
LuaEvent::Queue("onShipAlertChanged", this, EnumStrings::GetString("ShipAlertStatus", ALERT_NONE));
}
return;
}
static const double ALERT_DISTANCE = 100000.0; // 100km
Space::BodyNearList nearby;
Pi::game->GetSpace()->GetBodiesMaybeNear(this, ALERT_DISTANCE, nearby);
bool ship_is_near = false, ship_is_firing = false;
for (Space::BodyNearIterator i = nearby.begin(); i != nearby.end(); ++i)
{
if ((*i) == this) continue;
if (!(*i)->IsType(Object::SHIP) || (*i)->IsType(Object::MISSILE)) continue;
const Ship *ship = static_cast<const Ship*>(*i);
if (ship->GetShipType().tag == ShipType::TAG_STATIC_SHIP) continue;
if (ship->GetFlightState() == LANDED || ship->GetFlightState() == DOCKED) continue;
if (GetPositionRelTo(ship).LengthSqr() < ALERT_DISTANCE*ALERT_DISTANCE) {
ship_is_near = true;
Uint32 gunstate = 0;
for (int j = 0; j < ShipType::GUNMOUNT_MAX; j++)
gunstate |= ship->m_gunState[j];
if (gunstate) {
ship_is_firing = true;
break;
}
}
}
bool changed = false;
switch (m_alertState) {
case ALERT_NONE:
if (ship_is_near) {
SetAlertState(ALERT_SHIP_NEARBY);
changed = true;
}
if (ship_is_firing) {
m_lastFiringAlert = Pi::game->GetTime();
SetAlertState(ALERT_SHIP_FIRING);
changed = true;
}
break;
case ALERT_SHIP_NEARBY:
if (!ship_is_near) {
SetAlertState(ALERT_NONE);
changed = true;
}
else if (ship_is_firing) {
m_lastFiringAlert = Pi::game->GetTime();
SetAlertState(ALERT_SHIP_FIRING);
changed = true;
}
break;
case ALERT_SHIP_FIRING:
if (!ship_is_near) {
SetAlertState(ALERT_NONE);
changed = true;
}
else if (ship_is_firing) {
m_lastFiringAlert = Pi::game->GetTime();
}
else if (m_lastFiringAlert + 60.0 <= Pi::game->GetTime()) {
SetAlertState(ALERT_SHIP_NEARBY);
changed = true;
}
break;
}
if (changed)
LuaEvent::Queue("onShipAlertChanged", this, EnumStrings::GetString("ShipAlertStatus", GetAlertState()));
}
