Method dieselExhaust2AnimationUpdate

src/OpenLoco/src/Vehicles/VehicleBody.cpp:1159–1212

0x004ABB5A & 0x004AB177

    // 0x004ABB5A & 0x004AB177
    void VehicleBody::dieselExhaust2AnimationUpdate(const Vehicle& train, const CarUpdateState& carState, uint8_t num, int32_t emitterHorizontalPos)
    {
        VehicleBogie* frontBogie = carState.frontBogie;
        VehicleBogie* backBogie = carState.backBogie;
        if (frontBogie->hasBreakdownFlags(BreakdownFlags::brokenDown))
        {
            return;
        }

        Vehicle2* veh_2 = train.veh2;
        const auto* vehicleObject = getObject();

        if (veh_2->motorState != MotorState::accelerating)
        {
            return;
        }

        if (veh_2->currentSpeed > 14.0_mph)
        {
            return;
        }

        if (has38Flags(Flags38::isReversed))
        {
            emitterHorizontalPos = -emitterHorizontalPos;
        }

        if (ScenarioManager::getScenarioTicks() & 7)
        {
            return;
        }

        emitterHorizontalPos += 64;

        auto bogieDifference = backBogie->position - frontBogie->position;
        auto xyFactor = Math::Trigonometry::computeXYVector(vehicleObject->animation[num].emitterVerticalPos, spritePitch, spriteYaw);

        auto loc = bogieDifference * emitterHorizontalPos / 128 + frontBogie->position + World::Pos3(xyFactor.x, xyFactor.y, vehicleObject->animation[num].emitterVerticalPos);

        // 90 degrees C.W.
        auto yaw = (spriteYaw + 16) & 0x3F;

        auto unkFactor = 5;
        if (getGameState().trafficHandedness != 0)
        {
            unkFactor = -5;
        }

        xyFactor = Math::Trigonometry::computeXYVector(unkFactor, yaw);
        loc.x += xyFactor.x;
        loc.y += xyFactor.y;

        Exhaust::create(loc, vehicleObject->animation[num].objectId);
    }

    // 0x004ABDAD & 0x004AB3CA
    void VehicleBody::electricSpark1AnimationUpdate(const Vehicle& train, const CarUpdateState& carState, const int32_t unkDistance, uint8_t num, int32_t emitterHorizontalPos)