Method Simulate

engine/Poseidon/World/Scene/Thing.cpp:437–796

}

void ThingEffectLight::Simulate(float deltaT, SimulationImportance prec)
{
    _submerged += Type()->_submergeSpeed * deltaT;
    _timeToLive -= deltaT;

    base::Simulate(deltaT, prec);

#define SIM_STEP_LIMIT 1

#if SIM_STEP_LIMIT
    float rest = deltaT;
    float simStep = 0.05;
    while (rest > 0)
#endif
    {
#if SIM_STEP_LIMIT
        float deltaT = floatMin(rest, simStep);
        rest -= simStep;
#endif

        Vector3Val speed = ModelSpeed();

        // calculate all forces, frictions and torques
        Vector3 force(VZero), friction(VZero);
        Vector3 torque(VZero), torqueFriction(VZero);

        Vector3 pForce(VZero);  // partial force
        Vector3 pCenter(VZero); // partial force application point

        // simulate left/right engine
        Vector3 wCenter(VFastTransform, ModelToWorld(), GetCenterOfMass());

        // apply gravity
        pForce = Vector3(0, -G_CONST * GetMass(), 0);
        force += pForce;

#if ARROWS
        AddForce(wCenter, pForce * InvMass(), Color(1, 1, 0, 0.1));
#endif

        // angular velocity causes also some angular friction
        // this should be simulated as torque
        if (_landContact || _objectContact)
        {
            torqueFriction = _angMomentum * 0.2;
        }
        else
        {
            torqueFriction = _angMomentum * 0.05;
        }

        // calculate new position
        Matrix4 movePos;
        ApplySpeed(movePos, deltaT);

        Frame moveTrans;
        moveTrans.SetTransform(movePos);