void CweaponIGC::FireWeapon(Time now)
{
assert(m_mountID >= 0);
assert(m_ship);
bool fFiredShot = false;
if (m_fActive && (m_nextFire < now))
{
Time lastUpdate = m_ship->GetLastUpdate();
//Never fire retroactively.
if (m_nextFire < lastUpdate)
m_nextFire = lastUpdate;
bool fSelected = fIsWeaponSelected();
float energy = m_ship->GetEnergy(); //the energy the ship would have at "now"
if (energy >= m_typeData->energyPerShot)
{
//We'd be able to fire before now and would have enough energy at now to fire, so ...
float rechargeRate = m_ship->GetHullType()->GetRechargeRate();
float energyDeficit = (m_nextFire - now) * //this is how much we are in the hole because we
rechargeRate; //are shooting sooner than "now" (must be < 0)
short ammo = m_ship->GetAmmo();
if ((ammo > 0) || (m_typeData->cAmmoPerShot == 0))
{
// we are firing at least once this frame
fFiredShot = true;
m_pMission->GetIgcSite()->PlayFFEffect(effectFire, m_pshipGunner ? m_pshipGunner : m_ship);
//Get the stuff that won't change between shots
IclusterIGC* cluster = m_ship->GetCluster();
assert(cluster);
const Orientation& shipOrientation = m_ship->GetOrientation();
//Orientation orientationBfr;
const Orientation* pMyOrientation;
if (m_pshipGunner)
{
/*
orientationBfr = m_pshipGunner->GetOrientation() * (*m_porientation * shipOrientation);
pMyOrientation = &orientationBfr;
*/
pMyOrientation = &(m_pshipGunner->GetOrientation());
}
else
{
pMyOrientation = &shipOrientation;
}
//This is how much energy deficit recovers between shots
float dtimeBurst = GetDtBurst();
float recharge = rechargeRate * dtimeBurst;
const Vector& myVelocity = m_ship->GetVelocity();
Vector myPosition = m_ship->GetPosition() + *m_pposition * shipOrientation; //*pMyOrientation;
/*
m_ship->GetThingSite()->AddMuzzleFlare(
m_emissionPt,
min(dtimeBurst * 0.5f, 0.05f)
);
*/
DataProjectileIGC dataProjectile;
dataProjectile.projectileTypeID = m_projectileType->GetObjectID();
float lifespan = GetLifespan();
float speed = m_projectileType->GetSpeed();
if (m_typeData->cAmmoPerShot)
speed *= m_ship->GetSide()->GetGlobalAttributeSet().GetAttribute(c_gaSpeedAmmo);
bool absoluteF = m_projectileType->GetAbsoluteF();
const Vector* ppositionTarget;
const Vector* pvelocityTarget;
ImodelIGC* ptarget = NULL;
if (m_projectileType->GetBlastPower() != 0.0f)
{
if (m_pshipGunner)
ptarget = m_pshipGunner->GetCommandTarget(c_cmdCurrent);
else
ptarget = m_ship->GetCommandTarget(c_cmdCurrent);
if (ptarget)
{
if ((ptarget->GetCluster() == cluster) && m_ship->CanSee(ptarget))
{
ppositionTarget = &(ptarget->GetPosition());
pvelocityTarget = &(ptarget->GetVelocity());
}
else
ptarget = NULL;
}
}
int nShots = fSelected ? 10 : 0; //Only allow a single shot if the weapon is no longer selected
do
{
if (energy + energyDeficit < m_typeData->energyPerShot)
{
//We don't have enough energy to fire at our prefered time ... so wait until we do.
m_nextFire += (m_typeData->energyPerShot - (energy + energyDeficit)) / rechargeRate;
}
//Permute the "forward" direction slightly by a random amount
dataProjectile.forward = pMyOrientation->GetForward();
if (m_typeData->dispersion != 0.0f)
{
float r = random(0.0f, m_typeData->dispersion);
float a = random(0.0f, 2.0f * pi);
dataProjectile.forward += (r * cos(a)) * pMyOrientation->GetRight();
dataProjectile.forward += (r * sin(a)) * pMyOrientation->GetUp();
dataProjectile.forward.SetNormalize();
}
dataProjectile.velocity = speed * dataProjectile.forward;
if (!absoluteF)
dataProjectile.velocity += myVelocity;
Vector position = myPosition + myVelocity * (m_nextFire - lastUpdate);
dataProjectile.lifespan = lifespan;
if (ptarget)
{
Vector dV = *pvelocityTarget - dataProjectile.velocity;
float dV2 = dV.LengthSquared();
if (dV2 != 0.0f)
{
Vector dP = position - *ppositionTarget; //reverse so time has right sense
dataProjectile.lifespan = (dV * dP) / dV2;
if (dataProjectile.lifespan > lifespan)
dataProjectile.lifespan = lifespan;
else if (dataProjectile.lifespan < 0.1f)
dataProjectile.lifespan = 0.1f; //Don't let it explode in our face
}
}
IprojectileIGC* p = (IprojectileIGC*)(m_pMission->CreateObject(m_nextFire, OT_projectile,
&dataProjectile, sizeof(dataProjectile)));
if (p)
{
if (m_pshipGunner)
p->SetGunner(m_pshipGunner);
else
p->SetLauncher(m_ship);
p->SetPosition(position);
p->SetCluster(cluster);
p->Release();
}
energyDeficit += rechargeRate * dtimeBurst;
energy -= m_typeData->energyPerShot;
ammo -= m_typeData->cAmmoPerShot;
m_nextFire += dtimeBurst;
} while ((nShots-- > 0) &&
(m_nextFire < now) &&
(energy + energyDeficit >= m_typeData->energyPerShot) &&
(ammo > 0));
m_ship->SetAmmo(ammo > 0 ? ammo : 0);
if ((ammo == 0) && (m_typeData->cAmmoPerShot != 0))
fSelected = false;
m_ship->SetEnergy(energy);
}
}
if (!fSelected)
Deactivate();
}
// if we fired a shot, keep track of it (note - stored localy because the
// call to deactivate (above) clears the member variable).
m_fFiringShot = fFiredShot;
// if we are still firing and have the energy and ammo for the next shot,
// assume we are firing a burst.
if ((m_ship->GetEnergy() >= m_typeData->energyPerShot)
&& (m_ship->GetAmmo() >= m_typeData->cAmmoPerShot)
&& (m_fFiringBurst || (m_fActive && m_fFiringShot)) // a burst starts with a shot
)
{
m_fFiringBurst = true;
}
else
{
m_fFiringBurst = false;
}
}
void PartSysParser::ParseEmitter(const TabFileRecord& record) {
auto systemName = record[COL_PARTSYS_NAME].AsString();
auto& system = mSpecs[tolower(systemName)];
// Create it on demand
if (!system) {
system = std::make_shared<PartSysSpec>(systemName);
}
// Add the emitter
auto emitter = system->CreateEmitter(record[COL_EMITTER_NAME].AsString());
ParseOptionalFloat(record, COL_DELAY, "Delay", [&] (float value) {
emitter->SetDelay(value / 30.0f);
});
ParseLifespan(record, emitter);
ParseParticleLifespan(record, emitter);
ParseParticleRate(record, emitter);
ParseOptionalEnum<PartSysEmitterSpace>(record, COL_EMITTER_SPACE, "emitter space", EmitterSpaceMapping, [&](auto space) {
emitter->SetSpace(space);
});
ParseEmitterNodeName(record, emitter);
ParseOptionalEnum<PartSysCoordSys>(record, COL_EMITTER_COORD_SYS, "emitter coord sys", CoordSysMapping, [&](auto coordSys) {
emitter->SetCoordSys(coordSys);
});
ParseOptionalEnum<PartSysCoordSys>(record, COL_EMITTER_OFFSET_COORD_SYS, "emitter offset coord sys", CoordSysMapping, [&](auto coordSys) {
emitter->SetOffsetCoordSys(coordSys);
});
ParseOptionalEnum<PartSysParticleType>(record, COL_PARTICLE_TYPE, "particle type", ParticleTypeMapping, [&](PartSysParticleType type) {
emitter->SetParticleType(type);
});
ParseOptionalEnum<PartSysBlendMode>(record, COL_BLEND_MODE, "blend mode", BlendModeMapping, [&](auto mode) {
emitter->SetBlendMode(mode);
});
ParseMaterial(record, emitter);
ParseOptionalEnum<PartSysCoordSys>(record, COL_PARTICLE_POS_COORD_SYS, "particle pos coord sys", CoordSysMapping, [&](auto coordSys) {
emitter->SetParticlePosCoordSys(coordSys);
});
ParseOptionalEnum<PartSysCoordSys>(record, COL_PARTICLE_VELOCITY_COORD_SYS, "particle velocity coord sys", CoordSysMapping, [&](auto coordSys) {
emitter->SetParticleVelocityCoordSys(coordSys);
});
ParseOptionalEnum<PartSysParticleSpace>(record, COL_PARTICLE_SPACE, "particle space", ParticleSpaceMapping, [&](auto space) {
emitter->SetParticleSpace(space);
});
ParseMesh(record, emitter);
// Parse the bounding box
ParseOptionalFloat(record, COL_BB_LEFT, "bb left", [&](float val) {
emitter->SetBoxLeft(val);
});
ParseOptionalFloat(record, COL_BB_TOP, "bb top", [&](float val) {
emitter->SetBoxTop(val);
});
ParseOptionalFloat(record, COL_BB_RIGHT, "bb right", [&](float val) {
emitter->SetBoxRight(val);
});
ParseOptionalFloat(record, COL_BB_BOTTOM, "bb bottom", [&](float val) {
emitter->SetBoxBottom(val);
});
for (int paramId = 0; paramId <= part_attractorBlend; paramId++) {
int colIdx = 22 + paramId;
auto col = record[colIdx];
if (col) {
bool success;
std::unique_ptr<PartSysParam> param(ParserParams::Parse((PartSysParamId) paramId,
col,
emitter->GetLifespan(),
emitter->GetParticleLifespan(),
success));
if (success) {
emitter->SetParam((PartSysParamId)paramId, param);
} else {
logger->warn("Unable to parse particle system param {} for particle system {} and emitter {} with value {}",
paramId, systemName, emitter->GetName(), col.AsString());
}
}
}
}