void Player::InitCockpit()
{
m_cockpit.release();
if (!Pi::config->Int("EnableCockpit"))
return;
// XXX select a cockpit model. this is all quite skanky because we want a
// fallback if the name is not found, which means having to actually try to
// load the model. but ModelBody (on which ShipCockpit is currently based)
// requires a model name, not a model object. it won't hurt much because it
// all stays in the model cache anyway, its just awkward. the fix is to fix
// ShipCockpit so its not a ModelBody and thus does its model work
// directly, but we're not there yet
std::string cockpitModelName;
if (!GetShipType()->cockpitName.empty()) {
if (Pi::FindModel(GetShipType()->cockpitName, false))
cockpitModelName = GetShipType()->cockpitName;
}
if (cockpitModelName.empty()) {
if (Pi::FindModel("default_cockpit", false))
cockpitModelName = "default_cockpit";
}
if (!cockpitModelName.empty())
m_cockpit.reset(new ShipCockpit(cockpitModelName));
}
void Ship::UpdateFuel(const float timeStep, const vector3d &thrust)
{
const double fuelUseRate = GetShipType()->GetFuelUseRate() * 0.01;
double totalThrust = (fabs(thrust.x) + fabs(thrust.y) + fabs(thrust.z))
/ -GetShipType()->linThrust[ShipType::THRUSTER_FORWARD];
FuelState lastState = GetFuelState();
SetFuel(GetFuel() - timeStep * (totalThrust * fuelUseRate));
FuelState currentState = GetFuelState();
UpdateFuelStats();
if (currentState != lastState)
LuaEvent::Queue("onShipFuelChanged", this, EnumStrings::GetString("ShipFuelStatus", currentState));
}
double Ship::AIFaceOrient(const vector3d &dir, const vector3d &updir)
{
double timeStep = Pi::GetTimeStep();
matrix4x4d rot; GetRotMatrix(rot);
double maxAccel = GetShipType().angThrust / GetAngularInertia(); // should probably be in stats anyway
double frameAccel = maxAccel * timeStep;
if (dir.Dot(vector3d(rot[8], rot[9], rot[10])) > -0.999999)
{ AIFaceDirection(dir); return false; }
vector3d uphead = (updir * rot).Normalized(); // create desired object-space updir
vector3d dav(0.0, 0.0, 0.0); // desired angular velocity
double ang = 0.0;
if (uphead.y < 0.999999)
{
ang = acos(Clamp(uphead.y, -1.0, 1.0)); // scalar angle from head to curhead
double iangvel = sqrt(2.0 * maxAccel * ang); // ideal angvel at current time
double frameEndAV = iangvel - frameAccel;
if (frameEndAV <= 0.0) iangvel = ang / timeStep; // last frame discrete correction
else iangvel = (iangvel + frameEndAV) * 0.5; // discrete overshoot correction
dav.z = -iangvel;
}
vector3d cav = (GetAngVelocity() - GetFrame()->GetAngVelocity()) * rot; // current obj-rel angvel
// vector3d cav = GetAngVelocity() * rot; // current obj-rel angvel
vector3d diff = (dav - cav) / frameAccel; // find diff between current & desired angvel
SetAngThrusterState(diff);
return ang;
// if (diff.x*diff.x > 1.0 || diff.y*diff.y > 1.0 || diff.z*diff.z > 1.0) return false;
// else return true;
}
void Ship::Init()
{
// XXX the animation namespace must match that in LuaConstants
// note: this must be set before generating the collision mesh
// (which happens in SetModel()) and before rendering
GetLmrObjParams().animationNamespace = "ShipAnimation";
GetLmrObjParams().equipment = &m_equipment;
const ShipType &stype = GetShipType();
// Dirty hack: Always use gear-down mesh for collision detection
// necessary because some ships have non-docking meshes too large for docking
float temp = GetLmrObjParams().animValues[ANIM_WHEEL_STATE];
GetLmrObjParams().animValues[ANIM_WHEEL_STATE] = 1.0f;
SetModel(stype.lmrModelName.c_str());
GetLmrObjParams().animValues[ANIM_WHEEL_STATE] = temp;
SetMassDistributionFromModel();
UpdateStats();
m_stats.hull_mass_left = float(stype.hullMass);
m_stats.shield_mass_left = 0;
m_hyperspace.now = false; // TODO: move this on next savegame change, maybe
m_hyperspaceCloud = 0;
m_landingGearAnimation = 0;
SceneGraph::Model *nmodel = dynamic_cast<SceneGraph::Model*>(GetModel());
if (nmodel) {
m_landingGearAnimation = nmodel->FindAnimation("gear_down");
}
}
/* Assumed to be at model coords */
void Ship::RenderLaserfire()
{
const ShipType &stype = GetShipType();
glDisable(GL_LIGHTING);
for (int i=0; i<ShipType::GUNMOUNT_MAX; i++) {
if (!m_gunState[i]) continue;
glPushAttrib(GL_CURRENT_BIT | GL_LINE_BIT);
switch (m_equipment.Get(Equip::SLOT_LASER, i)) {
case Equip::LASER_2MW_BEAM:
glColor3f(1,.5,0); break;
case Equip::LASER_4MW_BEAM:
glColor3f(1,1,0); break;
default:
case Equip::LASER_1MW_BEAM:
glColor3f(1,0,0); break;
}
glLineWidth(2.0f);
glBegin(GL_LINES);
vector3f pos = stype.gunMount[i].pos;
glVertex3f(pos.x, pos.y, pos.z);
glVertex3fv(&((10000)*stype.gunMount[i].dir)[0]);
glEnd();
glPopAttrib();
}
glEnable(GL_LIGHTING);
}
double Ship::GetAccelMin() const
{
const ShipType &stype = GetShipType();
float val = stype.linThrust[ShipType::THRUSTER_UP];
val = std::min(val, stype.linThrust[ShipType::THRUSTER_RIGHT]);
val = std::min(val, -stype.linThrust[ShipType::THRUSTER_LEFT]);
return val / GetMass();
}
float Ship::GetWeakestThrustersForce() const
{
const ShipType &type = GetShipType();
float val = FLT_MAX;
for (int i=0; i<ShipType::THRUSTER_MAX; i++) {
val = std::min(val, fabsf(type.linThrust[i]));
}
return val;
}
void Ship::Init()
{
const ShipType &stype = GetShipType();
SetModel(stype.lmrModelName.c_str());
SetMassDistributionFromModel();
UpdateMass();
m_stats.hull_mass_left = float(stype.hullMass);
m_stats.shield_mass_left = 0;
}
// Input in object space
void Ship::AIMatchAngVelObjSpace(const vector3d &angvel)
{
double maxAccel = GetShipType().angThrust / GetAngularInertia();
double invFrameAccel = 1.0 / (maxAccel * Pi::GetTimeStep());
matrix4x4d rot; GetRotMatrix(rot);
vector3d diff = angvel - GetAngVelocity() * rot; // find diff between current & desired angvel
SetAngThrusterState(diff * invFrameAccel);
}
void Ship::UpdateFuelStats()
{
const ShipType &stype = GetShipType();
m_stats.fuel_tank_mass = stype.fuelTankMass;
m_stats.fuel_use = GetFuelUseRate();
m_stats.fuel_tank_mass_left = m_stats.fuel_tank_mass * GetFuel();
UpdateMass();
}
void Ship::InitEquipSet() {
lua_State * l = Lua::manager->GetLuaState();
PropertyMap & p = Properties();
LUA_DEBUG_START(l);
pi_lua_import(l, "EquipSet");
LuaTable es_class(l, -1);
LuaTable slots = LuaTable(l).LoadMap(GetShipType()->slots.begin(), GetShipType()->slots.end());
m_equipSet = es_class.Call<LuaRef>("New", slots);
p.Set("equipSet", ScopedTable(m_equipSet));
UpdateEquipStats();
{
ScopedTable es(m_equipSet);
int usedCargo = es.CallMethod<int>("OccupiedSpace", "cargo");
int totalCargo = std::min(m_stats.free_capacity + usedCargo, es.CallMethod<int>("SlotSize", "cargo"));
p.Set("usedCargo", usedCargo);
p.Set("totalCargo", totalCargo);
}
lua_pop(l, 2);
LUA_DEBUG_END(l, 0);
}
vector3d Ship::GetMaxThrust(const vector3d &dir)
{
const ShipType &stype = GetShipType();
vector3d maxThrust;
maxThrust.x = (dir.x > 0) ? stype.linThrust[ShipType::THRUSTER_RIGHT]
: -stype.linThrust[ShipType::THRUSTER_LEFT];
maxThrust.y = (dir.y > 0) ? stype.linThrust[ShipType::THRUSTER_UP]
: -stype.linThrust[ShipType::THRUSTER_DOWN];
maxThrust.z = (dir.z > 0) ? stype.linThrust[ShipType::THRUSTER_REVERSE]
: -stype.linThrust[ShipType::THRUSTER_FORWARD];
return maxThrust;
}
bool Ship::OnDamage(Object *attacker, float kgDamage, const CollisionContact& contactData)
{
if (m_invulnerable) {
Sound::BodyMakeNoise(this, "Hull_hit_Small", 0.5f);
return true;
}
if (!IsDead()) {
float dam = kgDamage*0.001f;
if (m_stats.shield_mass_left > 0.0f) {
if (m_stats.shield_mass_left > dam) {
m_stats.shield_mass_left -= dam;
dam = 0;
} else {
dam -= m_stats.shield_mass_left;
m_stats.shield_mass_left = 0;
}
Properties().Set("shieldMassLeft", m_stats.shield_mass_left);
}
m_shieldCooldown = DEFAULT_SHIELD_COOLDOWN_TIME;
// transform the collision location into the models local space (from world space) and add it as a hit.
matrix4x4d mtx = GetOrient();
mtx.SetTranslate( GetPosition() );
const matrix4x4d invmtx = mtx.Inverse();
const vector3d localPos = invmtx * contactData.pos;
GetShields()->AddHit(localPos);
m_stats.hull_mass_left -= dam;
Properties().Set("hullMassLeft", m_stats.hull_mass_left);
Properties().Set("hullPercent", 100.0f * (m_stats.hull_mass_left / float(m_type->hullMass)));
if (m_stats.hull_mass_left < 0) {
if (attacker) {
if (attacker->IsType(Object::BODY))
LuaEvent::Queue("onShipDestroyed", this, dynamic_cast<Body*>(attacker));
}
Explode();
} else {
if (Pi::rng.Double() < kgDamage)
SfxManager::Add(this, TYPE_DAMAGE);
if (dam < 0.01 * float(GetShipType()->hullMass))
Sound::BodyMakeNoise(this, "Hull_hit_Small", 1.0f);
else
Sound::BodyMakeNoise(this, "Hull_Hit_Medium", 1.0f);
}
}
//Output("Ouch! %s took %.1f kilos of damage from %s! (%.1f t hull left)\n", GetLabel().c_str(), kgDamage, attacker->GetLabel().c_str(), m_stats.hull_mass_left);
return true;
}
void Ship::TimeStepUpdate(const float timeStep)
{
// XXX why not just f*****g do this rather than track down the
// reason that ship geoms are being collision tested during launch
if (m_flightState == FLYING) Enable();
else Disable();
vector3d maxThrust = GetMaxThrust(m_thrusters);
AddRelForce(vector3d(maxThrust.x*m_thrusters.x, maxThrust.y*m_thrusters.y,
maxThrust.z*m_thrusters.z));
AddRelTorque(GetShipType().angThrust * m_angThrusters);
DynamicBody::TimeStepUpdate(timeStep);
}
void Ship::Load(Serializer::Reader &rd, Space *space)
{
DynamicBody::Load(rd, space);
// needs fixups
m_angThrusters = rd.Vector3d();
m_thrusters = rd.Vector3d();
m_wheelTransition = rd.Int32();
m_wheelState = rd.Float();
m_launchLockTimeout = rd.Float();
m_testLanded = rd.Bool();
m_flightState = FlightState(rd.Int32());
m_alertState = AlertState(rd.Int32());
m_lastFiringAlert = rd.Double();
m_hyperspace.dest = SystemPath::Unserialize(rd);
m_hyperspace.countdown = rd.Float();
for (int i=0; i<ShipType::GUNMOUNT_MAX; i++) {
m_gunState[i] = rd.Int32();
m_gunRecharge[i] = rd.Float();
m_gunTemperature[i] = rd.Float();
}
m_ecmRecharge = rd.Float();
m_shipFlavour.Load(rd);
m_type = &ShipType::types[m_shipFlavour.id];
m_dockedWithPort = rd.Int32();
m_dockedWithIndex = rd.Int32();
m_equipment.InitSlotSizes(m_shipFlavour.id);
m_equipment.Load(rd);
Init();
m_stats.hull_mass_left = rd.Float(); // must be after Init()...
m_stats.shield_mass_left = rd.Float();
if(rd.Int32()) m_curAICmd = AICommand::Load(rd);
else m_curAICmd = 0;
m_aiMessage = AIError(rd.Int32());
SetFuel(rd.Double());
m_stats.fuel_tank_mass_left = GetShipType().fuelTankMass * GetFuel();
m_reserveFuel = rd.Double();
UpdateStats(); // this is necessary, UpdateStats() in Ship::Init has wrong values of m_thrusterFuel after Load
m_controller = 0;
const ShipController::Type ctype = static_cast<ShipController::Type>(rd.Int32());
if (ctype == ShipController::PLAYER)
SetController(new PlayerShipController());
else
SetController(new ShipController());
m_controller->Load(rd);
m_equipment.onChange.connect(sigc::mem_fun(this, &Ship::OnEquipmentChange));
}
bool Ship::OnDamage(Object *attacker, float kgDamage)
{
if (!IsDead()) {
float dam = kgDamage*0.001f;
if (m_stats.shield_mass_left > 0.0f) {
if (m_stats.shield_mass_left > dam) {
m_stats.shield_mass_left -= dam;
dam = 0;
} else {
dam -= m_stats.shield_mass_left;
m_stats.shield_mass_left = 0;
}
}
m_stats.hull_mass_left -= dam;
if (m_stats.hull_mass_left < 0) {
if (attacker) {
if (attacker->IsType(Object::BODY)) {
// XXX remove this call. kill stuff (including elite rating) should be in a script
static_cast<Body*>(attacker)->OnHaveKilled(this);
Pi::luaOnShipDestroyed->Queue(this, dynamic_cast<Body*>(attacker));
}
if (attacker->IsType(Object::SHIP))
Polit::NotifyOfCrime(static_cast<Ship*>(attacker), Polit::CRIME_MURDER);
}
Space::KillBody(this);
Sfx::Add(this, Sfx::TYPE_EXPLOSION);
Sound::BodyMakeNoise(this, "Explosion_1", 1.0f);
}
else {
if (attacker && attacker->IsType(Object::SHIP))
Polit::NotifyOfCrime(static_cast<Ship*>(attacker), Polit::CRIME_PIRACY);
if (Pi::rng.Double() < kgDamage)
Sfx::Add(this, Sfx::TYPE_DAMAGE);
if (dam < 0.01 * float(GetShipType().hullMass))
Sound::BodyMakeNoise(this, "Hull_hit_Small", 1.0f);
else
Sound::BodyMakeNoise(this, "Hull_Hit_Medium", 1.0f);
}
}
//printf("Ouch! %s took %.1f kilos of damage from %s! (%.1f t hull left)\n", GetLabel().c_str(), kgDamage, attacker->GetLabel().c_str(), m_stats.hull_mass_left);
return true;
}
void Ship::Init()
{
const ShipType &stype = GetShipType();
SetModel(stype.modelName.c_str());
SetMassDistributionFromModel();
UpdateStats();
m_stats.hull_mass_left = float(stype.hullMass);
m_stats.shield_mass_left = 0;
m_hyperspace.now = false; // TODO: move this on next savegame change, maybe
m_hyperspaceCloud = 0;
m_landingGearAnimation = GetModel()->FindAnimation("gear_down");
}
bool Ship::OnDamage(Object *attacker, float kgDamage)
{
if (!IsDead()) {
float dam = kgDamage*0.001f;
if (m_stats.shield_mass_left > 0.0f) {
if (m_stats.shield_mass_left > dam) {
m_stats.shield_mass_left -= dam;
dam = 0;
} else {
dam -= m_stats.shield_mass_left;
m_stats.shield_mass_left = 0;
}
}
m_stats.hull_mass_left -= dam;
if (m_stats.hull_mass_left < 0) {
if (attacker) {
if (attacker->IsType(Object::BODY))
LuaEvent::Queue("onShipDestroyed", this, dynamic_cast<Body*>(attacker));
if (attacker->IsType(Object::SHIP))
Polit::NotifyOfCrime(static_cast<Ship*>(attacker), Polit::CRIME_MURDER);
}
Explode();
}
else {
if (attacker && attacker->IsType(Object::SHIP))
Polit::NotifyOfCrime(static_cast<Ship*>(attacker), Polit::CRIME_PIRACY);
if (Pi::rng.Double() < kgDamage)
Sfx::Add(this, Sfx::TYPE_DAMAGE);
if (dam < 0.01 * float(GetShipType().hullMass))
Sound::BodyMakeNoise(this, "Hull_hit_Small", 1.0f);
else
Sound::BodyMakeNoise(this, "Hull_Hit_Medium", 1.0f);
}
}
//printf("Ouch! %s took %.1f kilos of damage from %s! (%.1f t hull left)\n", GetLabel().c_str(), kgDamage, attacker->GetLabel().c_str(), m_stats.hull_mass_left);
return true;
}
void Ship::FireWeapon(int num)
{
const ShipType &stype = GetShipType();
if (m_flightState != FLYING) return;
const matrix3x3d &m = GetOrient();
const vector3d dir = m * vector3d(stype.gunMount[num].dir);
const vector3d pos = m * vector3d(stype.gunMount[num].pos) + GetPosition();
m_gunTemperature[num] += 0.01f;
Equip::Type t = m_equipment.Get(Equip::SLOT_LASER, num);
const LaserType < = Equip::lasers[Equip::types[t].tableIndex];
m_gunRecharge[num] = lt.rechargeTime;
vector3d baseVel = GetVelocity();
vector3d dirVel = lt.speed * dir.Normalized();
if (lt.flags & Equip::LASER_DUAL)
{
const ShipType::DualLaserOrientation orient = stype.gunMount[num].orient;
const vector3d orient_norm =
(orient == ShipType::DUAL_LASERS_VERTICAL) ? m.VectorX() : m.VectorY();
const vector3d sep = stype.gunMount[num].sep * dir.Cross(orient_norm).NormalizedSafe();
Projectile::Add(this, t, pos + sep, baseVel, dirVel);
Projectile::Add(this, t, pos - sep, baseVel, dirVel);
}
else
Projectile::Add(this, t, pos, baseVel, dirVel);
/*
// trace laser beam through frame to see who it hits
CollisionContact c;
GetFrame()->GetCollisionSpace()->TraceRay(pos, dir, 10000.0, &c, this->GetGeom());
if (c.userData1) {
Body *hit = static_cast<Body*>(c.userData1);
hit->OnDamage(this, damage);
}
*/
Polit::NotifyOfCrime(this, Polit::CRIME_WEAPON_DISCHARGE);
Sound::BodyMakeNoise(this, "Pulse_Laser", 1.0f);
}
void Ship::TimeStepUpdate(const float timeStep)
{
// If docked, station is responsible for updating position/orient of ship
// but we call this crap anyway and hope it doesn't do anything bad
vector3d maxThrust = GetMaxThrust(m_thrusters);
vector3d thrust = vector3d(maxThrust.x*m_thrusters.x, maxThrust.y*m_thrusters.y,
maxThrust.z*m_thrusters.z);
AddRelForce(thrust);
AddRelTorque(GetShipType().angThrust * m_angThrusters);
DynamicBody::TimeStepUpdate(timeStep);
// fuel use decreases mass, so do this as the last thing in the frame
UpdateFuel(timeStep, thrust);
if (m_landingGearAnimation)
static_cast<SceneGraph::Model*>(GetModel())->UpdateAnimations();
}
void Ship::FireWeapon(int num)
{
const ShipType &stype = GetShipType();
if (m_flightState != FLYING) return;
matrix4x4d m;
GetRotMatrix(m);
vector3d dir = vector3d(stype.gunMount[num].dir);
vector3d pos = vector3d(stype.gunMount[num].pos);
m_gunTemperature[num] += 0.01f;
dir = m.ApplyRotationOnly(dir);
pos = m.ApplyRotationOnly(pos);
pos += GetPosition();
Equip::Type t = m_equipment.Get(Equip::SLOT_LASER, num);
const LaserType < = Equip::lasers[Equip::types[t].tableIndex];
m_gunRecharge[num] = lt.rechargeTime;
vector3d baseVel = GetVelocity();
vector3d dirVel = lt.speed * dir.Normalized();
if (lt.flags & Equip::LASER_DUAL)
{
vector3d sep = dir.Cross(vector3d(m[4],m[5],m[6])).Normalized();
Projectile::Add(this, t, pos+5.0*sep, baseVel, dirVel);
Projectile::Add(this, t, pos-5.0*sep, baseVel, dirVel);
}
else Projectile::Add(this, t, pos, baseVel, dirVel);
/*
// trace laser beam through frame to see who it hits
CollisionContact c;
GetFrame()->GetCollisionSpace()->TraceRay(pos, dir, 10000.0, &c, this->GetGeom());
if (c.userData1) {
Body *hit = static_cast<Body*>(c.userData1);
hit->OnDamage(this, damage);
}
*/
Polit::NotifyOfCrime(this, Polit::CRIME_WEAPON_DISCHARGE);
Sound::BodyMakeNoise(this, "Pulse_Laser", 1.0f);
}
// Input: direction in ship's frame, doesn't need to be normalized
// Approximate positive angular velocity at match point
// Applies thrust directly
// old: returns whether it can reach that direction in this frame
// returns angle to target
double Ship::AIFaceDirection(const vector3d &dir, double av)
{
double timeStep = Pi::game->GetTimeStep();
double maxAccel = GetShipType().angThrust / GetAngularInertia(); // should probably be in stats anyway
if (maxAccel <= 0.0) return 0.0;
double frameAccel = maxAccel * timeStep;
matrix4x4d rot; GetRotMatrix(rot);
vector3d head = (dir * rot).Normalized(); // create desired object-space heading
vector3d dav(0.0, 0.0, 0.0); // desired angular velocity
double ang = 0.0;
if (head.z > -0.99999999)
{
ang = acos (Clamp(-head.z, -1.0, 1.0)); // scalar angle from head to curhead
double iangvel = av + sqrt (2.0 * maxAccel * ang); // ideal angvel at current time
double frameEndAV = iangvel - frameAccel;
if (frameEndAV <= 0.0) iangvel = ang / timeStep; // last frame discrete correction
else iangvel = (iangvel + frameEndAV) * 0.5; // discrete overshoot correction
// Normalize (head.x, head.y) to give desired angvel direction
if (head.z > 0.999999) head.x = 1.0;
double head2dnorm = 1.0 / sqrt(head.x*head.x + head.y*head.y); // NAN fix shouldn't be necessary if inputs are normalized
dav.x = head.y * head2dnorm * iangvel;
dav.y = -head.x * head2dnorm * iangvel;
}
vector3d cav = (GetAngVelocity() - GetFrame()->GetAngVelocity()) * rot; // current obj-rel angvel
// vector3d cav = GetAngVelocity() * rot; // current obj-rel angvel
vector3d diff = (dav - cav) / frameAccel; // find diff between current & desired angvel
// If the player is pressing a roll key, don't override roll.
// XXX this really shouldn't be here. a better way would be to have a
// field in Ship describing the wanted angvel adjustment from input. the
// baseclass version in Ship would always be 0. the version in Player
// would be constructed from user input. that adjustment could then be
// considered by this method when computing the required change
if (IsType(Object::PLAYER) && (KeyBindings::rollLeft.IsActive() || KeyBindings::rollRight.IsActive()))
diff.z = m_angThrusters.z;
SetAngThrusterState(diff);
return ang;
}
void Ship::AIModelCoordsMatchAngVel(vector3d desiredAngVel, double softness)
{
const ShipType &stype = GetShipType();
double angAccel = stype.angThrust / GetAngularInertia();
const double softTimeStep = Pi::GetTimeStep() * softness;
matrix4x4d rot;
GetRotMatrix(rot);
vector3d angVel = desiredAngVel - rot.InverseOf() * GetAngVelocity();
vector3d thrust;
for (int axis=0; axis<3; axis++) {
if (angAccel * softTimeStep >= fabs(angVel[axis])) {
thrust[axis] = angVel[axis] / (softTimeStep * angAccel);
} else {
thrust[axis] = (angVel[axis] > 0.0 ? 1.0 : -1.0);
}
}
SetAngThrusterState(thrust);
}
void Ship::TimeStepUpdate(const float timeStep)
{
// If docked, station is responsible for updating position/orient of ship
// but we call this crap anyway and hope it doesn't do anything bad
const vector3d thrust(m_thrusters * GetMaxThrust(m_thrusters));
AddRelForce(thrust);
AddRelTorque(GetShipType()->angThrust * m_angThrusters);
if (m_landingGearAnimation)
m_landingGearAnimation->SetProgress(m_wheelState);
m_dragCoeff = DynamicBody::DEFAULT_DRAG_COEFF * (1.0 + 0.25 * m_wheelState);
DynamicBody::TimeStepUpdate(timeStep);
// fuel use decreases mass, so do this as the last thing in the frame
UpdateFuel(timeStep, thrust);
m_navLights->SetEnabled(m_wheelState > 0.01f);
m_navLights->Update(timeStep);
if (m_sensors.get()) m_sensors->Update(timeStep);
}
// Input: direction in ship's frame, doesn't need to be normalized
// Approximate positive angular velocity at match point
// Applies thrust directly
// old: returns whether it can reach that direction in this frame
// returns angle to target
double Ship::AIFaceDirection(const vector3d &dir, double av)
{
double timeStep = Pi::GetTimeStep();
double maxAccel = GetShipType().angThrust / GetAngularInertia(); // should probably be in stats anyway
if (maxAccel <= 0.0)
// happens if no angular thrust is set for the model eg MISSILE_UNGUIDED
return 0.0;
double frameAccel = maxAccel * timeStep;
matrix4x4d rot; GetRotMatrix(rot);
vector3d head = (dir * rot).Normalized(); // create desired object-space heading
vector3d dav(0.0, 0.0, 0.0); // desired angular velocity
double ang = 0.0;
if (head.z > -0.99999999)
{
ang = acos (Clamp(-head.z, -1.0, 1.0)); // scalar angle from head to curhead
double iangvel = av + sqrt (2.0 * maxAccel * ang); // ideal angvel at current time
double frameEndAV = iangvel - frameAccel;
if (frameEndAV <= 0.0) iangvel = ang / timeStep; // last frame discrete correction
else iangvel = (iangvel + frameEndAV) * 0.5; // discrete overshoot correction
// Normalize (head.x, head.y) to give desired angvel direction
if (head.z > 0.9999) head.x = 1.0;
double head2dnorm = 1.0 / sqrt(head.x*head.x + head.y*head.y); // NAN fix shouldn't be necessary if inputs are normalized
dav.x = head.y * head2dnorm * iangvel;
dav.y = -head.x * head2dnorm * iangvel;
}
vector3d cav = (GetAngVelocity() - GetFrame()->GetAngVelocity()) * rot; // current obj-rel angvel
// vector3d cav = GetAngVelocity() * rot; // current obj-rel angvel
vector3d diff = (dav - cav) / frameAccel; // find diff between current & desired angvel
SetAngThrusterState(diff);
return ang;
//if (diff.x*diff.x > 1.0 || diff.y*diff.y > 1.0 || diff.z*diff.z > 1.0) return false;
// else return true;
}
void Ship::UpdateEquipStats()
{
const ShipType &stype = GetShipType();
m_stats.max_capacity = stype.capacity;
m_stats.used_capacity = 0;
m_stats.used_cargo = 0;
for (int i=0; i<Equip::SLOT_MAX; i++) {
for (int j=0; j<stype.equipSlotCapacity[i]; j++) {
Equip::Type t = m_equipment.Get(Equip::Slot(i), j);
if (t) m_stats.used_capacity += Equip::types[t].mass;
if (Equip::Slot(i) == Equip::SLOT_CARGO) m_stats.used_cargo += Equip::types[t].mass;
}
}
m_stats.free_capacity = m_stats.max_capacity - m_stats.used_capacity;
m_stats.total_mass = m_stats.used_capacity + stype.hullMass;
m_stats.shield_mass = TONS_HULL_PER_SHIELD * float(m_equipment.Count(Equip::SLOT_SHIELD, Equip::SHIELD_GENERATOR));
UpdateMass();
UpdateFuelStats();
Equip::Type fuelType = GetHyperdriveFuelType();
if (stype.equipSlotCapacity[Equip::SLOT_ENGINE]) {
Equip::Type t = m_equipment.Get(Equip::SLOT_ENGINE);
int hyperclass = Equip::types[t].pval;
if (!hyperclass) { // no drive
m_stats.hyperspace_range = m_stats.hyperspace_range_max = 0;
} else {
m_stats.hyperspace_range_max = Pi::CalcHyperspaceRangeMax(hyperclass, GetMass()/1000);
m_stats.hyperspace_range = Pi::CalcHyperspaceRange(hyperclass, GetMass()/1000, m_equipment.Count(Equip::SLOT_CARGO, fuelType));
}
} else {
m_stats.hyperspace_range = m_stats.hyperspace_range_max = 0;
}
}
const shipstats_t *Ship::CalcStats()
{
const ShipType &stype = GetShipType();
m_stats.max_capacity = stype.capacity;
m_stats.used_capacity = 0;
m_stats.used_cargo = 0;
Equip::Type fuelType = GetHyperdriveFuelType();
for (int i=0; i<Equip::SLOT_MAX; i++) {
for (int j=0; j<stype.equipSlotCapacity[i]; j++) {
Equip::Type t = m_equipment.Get(Equip::Slot(i), j);
if (t) m_stats.used_capacity += EquipType::types[t].mass;
if (Equip::Slot(i) == Equip::SLOT_CARGO) m_stats.used_cargo += EquipType::types[t].mass;
}
}
m_stats.free_capacity = m_stats.max_capacity - m_stats.used_capacity;
m_stats.total_mass = m_stats.used_capacity + stype.hullMass;
m_stats.shield_mass = TONS_HULL_PER_SHIELD * float(m_equipment.Count(Equip::SLOT_SHIELD, Equip::SHIELD_GENERATOR));
if (stype.equipSlotCapacity[Equip::SLOT_ENGINE]) {
Equip::Type t = m_equipment.Get(Equip::SLOT_ENGINE);
int hyperclass = EquipType::types[t].pval;
if (!hyperclass) { // no drive
m_stats.hyperspace_range = m_stats.hyperspace_range_max = 0;
} else {
// for the sake of hyperspace range, we count ships mass as 60% of original.
m_stats.hyperspace_range_max = Pi::CalcHyperspaceRange(hyperclass, m_stats.total_mass);
m_stats.hyperspace_range = std::min(m_stats.hyperspace_range_max, m_stats.hyperspace_range_max * m_equipment.Count(Equip::SLOT_CARGO, fuelType) /
(hyperclass * hyperclass));
}
} else {
m_stats.hyperspace_range = m_stats.hyperspace_range_max = 0;
}
return &m_stats;
}
void Ship::LoadFromJson(const Json::Value &jsonObj, Space *space)
{
DynamicBody::LoadFromJson(jsonObj, space);
if (!jsonObj.isMember("ship")) throw SavedGameCorruptException();
Json::Value shipObj = jsonObj["ship"];
if (!shipObj.isMember("ang_thrusters")) throw SavedGameCorruptException();
if (!shipObj.isMember("thrusters")) throw SavedGameCorruptException();
if (!shipObj.isMember("wheel_transition")) throw SavedGameCorruptException();
if (!shipObj.isMember("wheel_state")) throw SavedGameCorruptException();
if (!shipObj.isMember("launch_lock_timeout")) throw SavedGameCorruptException();
if (!shipObj.isMember("test_landed")) throw SavedGameCorruptException();
if (!shipObj.isMember("flight_state")) throw SavedGameCorruptException();
if (!shipObj.isMember("alert_state")) throw SavedGameCorruptException();
if (!shipObj.isMember("last_firing_alert")) throw SavedGameCorruptException();
if (!shipObj.isMember("hyperspace_destination")) throw SavedGameCorruptException();
if (!shipObj.isMember("hyperspace_countdown")) throw SavedGameCorruptException();
if (!shipObj.isMember("guns")) throw SavedGameCorruptException();
if (!shipObj.isMember("ecm_recharge")) throw SavedGameCorruptException();
if (!shipObj.isMember("ship_type_id")) throw SavedGameCorruptException();
if (!shipObj.isMember("docked_with_port")) throw SavedGameCorruptException();
if (!shipObj.isMember("index_for_body_docked_with")) throw SavedGameCorruptException();
if (!shipObj.isMember("hull_mass_left")) throw SavedGameCorruptException();
if (!shipObj.isMember("shield_mass_left")) throw SavedGameCorruptException();
if (!shipObj.isMember("shield_cooldown")) throw SavedGameCorruptException();
if (!shipObj.isMember("ai_message")) throw SavedGameCorruptException();
if (!shipObj.isMember("thruster_fuel")) throw SavedGameCorruptException();
if (!shipObj.isMember("reserve_fuel")) throw SavedGameCorruptException();
if (!shipObj.isMember("controller_type")) throw SavedGameCorruptException();
if (!shipObj.isMember("name")) throw SavedGameCorruptException();
m_skin.LoadFromJson(shipObj);
m_skin.Apply(GetModel());
// needs fixups
JsonToVector(&m_angThrusters, shipObj, "ang_thrusters");
JsonToVector(&m_thrusters, shipObj, "thrusters");
m_wheelTransition = shipObj["wheel_transition"].asInt();
m_wheelState = StrToFloat(shipObj["wheel_state"].asString());
m_launchLockTimeout = StrToFloat(shipObj["launch_lock_timeout"].asString());
m_testLanded = shipObj["test_landed"].asBool();
m_flightState = static_cast<FlightState>(shipObj["flight_state"].asInt());
m_alertState = static_cast<AlertState>(shipObj["alert_state"].asInt());
Properties().Set("flightState", EnumStrings::GetString("ShipFlightState", m_flightState));
Properties().Set("alertStatus", EnumStrings::GetString("ShipAlertStatus", m_alertState));
m_lastFiringAlert = StrToDouble(shipObj["last_firing_alert"].asString());
Json::Value hyperspaceDestObj = shipObj["hyperspace_destination"];
m_hyperspace.dest = SystemPath::FromJson(hyperspaceDestObj);
m_hyperspace.countdown = StrToFloat(shipObj["hyperspace_countdown"].asString());
m_hyperspace.duration = 0;
Json::Value gunArray = shipObj["guns"];
if (!gunArray.isArray()) throw SavedGameCorruptException();
assert(ShipType::GUNMOUNT_MAX == gunArray.size());
for (unsigned int i = 0; i < ShipType::GUNMOUNT_MAX; i++)
{
Json::Value gunArrayEl = gunArray[i];
if (!gunArrayEl.isMember("state")) throw SavedGameCorruptException();
if (!gunArrayEl.isMember("recharge")) throw SavedGameCorruptException();
if (!gunArrayEl.isMember("temperature")) throw SavedGameCorruptException();
m_gun[i].state = gunArrayEl["state"].asUInt();
m_gun[i].recharge = StrToFloat(gunArrayEl["recharge"].asString());
m_gun[i].temperature = StrToFloat(gunArrayEl["temperature"].asString());
}
m_ecmRecharge = StrToFloat(shipObj["ecm_recharge"].asString());
SetShipId(shipObj["ship_type_id"].asString()); // XXX handle missing thirdparty ship
m_dockedWithPort = shipObj["docked_with_port"].asInt();
m_dockedWithIndex = shipObj["index_for_body_docked_with"].asUInt();
Init();
m_stats.hull_mass_left = StrToFloat(shipObj["hull_mass_left"].asString()); // must be after Init()...
m_stats.shield_mass_left = StrToFloat(shipObj["shield_mass_left"].asString());
m_shieldCooldown = StrToFloat(shipObj["shield_cooldown"].asString());
m_curAICmd = 0;
m_curAICmd = AICommand::LoadFromJson(shipObj);
m_aiMessage = AIError(shipObj["ai_message"].asInt());
SetFuel(StrToDouble(shipObj["thruster_fuel"].asString()));
m_stats.fuel_tank_mass_left = GetShipType()->fuelTankMass * GetFuel();
m_reserveFuel = StrToDouble(shipObj["reserve_fuel"].asString());
PropertyMap &p = Properties();
p.Set("hullMassLeft", m_stats.hull_mass_left);
p.Set("hullPercent", 100.0f * (m_stats.hull_mass_left / float(m_type->hullMass)));
p.Set("shieldMassLeft", m_stats.shield_mass_left);
p.Set("fuelMassLeft", m_stats.fuel_tank_mass_left);
p.PushLuaTable();
lua_State *l = Lua::manager->GetLuaState();
lua_getfield(l, -1, "equipSet");
m_equipSet = LuaRef(l, -1);
lua_pop(l, 2);
UpdateLuaStats();
m_controller = 0;
const ShipController::Type ctype = static_cast<ShipController::Type>(shipObj["controller_type"].asInt());
if (ctype == ShipController::PLAYER)
SetController(new PlayerShipController());
else
SetController(new ShipController());
m_controller->LoadFromJson(shipObj);
m_navLights->LoadFromJson(shipObj);
m_shipName = shipObj["name"].asString();
Properties().Set("shipName", m_shipName);
}
// returns speed that can be reached using fuel minus reserve according to the Tsiolkovsky equation
double Ship::GetSpeedReachedWithFuel() const
{
const double fuelmass = 1000*GetShipType()->fuelTankMass * (m_thrusterFuel - m_reserveFuel);
if (fuelmass < 0) return 0.0;
return GetShipType()->effectiveExhaustVelocity * log(GetMass()/(GetMass()-fuelmass));
}
void Ship::UpdateMass()
{
SetMass((m_stats.static_mass + GetFuel()*GetShipType()->fuelTankMass)*1000);
}