Function JeepDynamics

TombEngine/Objects/TR4/Vehicles/jeep.cpp:494–726

	}

	int JeepDynamics(ItemInfo* jeepItem, ItemInfo* laraItem)
	{
		auto* jeep = GetJeepInfo(jeepItem);
		auto* lara = GetLaraInfo(laraItem);

		Vector3i f_old, b_old, mm_old, mt_old, mb_old;

		int hf_old  = GetVehicleHeight(jeepItem, JEEP_FRONT, -JEEP_SIDE, true, &f_old);
		int hb_old  = GetVehicleHeight(jeepItem, JEEP_FRONT, JEEP_SIDE, true, &b_old);
		int hmm_old = GetVehicleHeight(jeepItem, -(JEEP_FRONT + 50), -JEEP_SIDE, true, &mm_old);
		int hmt_old = GetVehicleHeight(jeepItem, -(JEEP_FRONT + 50), JEEP_SIDE, true, &mt_old);
		int hmb_old = GetVehicleHeight(jeepItem, -(JEEP_FRONT + 50), 0, true, &mb_old);

		auto oldPos = jeepItem->Pose.Position;

		if (f_old.y > hf_old)
			f_old.y = hf_old;
		
		if (b_old.y > hb_old)
			b_old.y = hb_old;
		
		if (mm_old.y > hmm_old)
			mm_old.y = hmm_old;
		
		if (mt_old.y > hmt_old)
			mt_old.y = hmt_old;
		
		if (mb_old.y > hmb_old)
			mb_old.y = hmb_old;

		short rot = 0;
		JeepNoGetOff = 0;

		if (oldPos.y <= jeepItem->Floor - 8)
		{
			if (jeep->TurnRate < -JEEP_TURN_RATE_DECEL)
				jeep->TurnRate += JEEP_TURN_RATE_DECEL;
			else if (jeep->TurnRate > JEEP_TURN_RATE_DECEL)
				jeep->TurnRate -= JEEP_TURN_RATE_DECEL;
			else
				jeep->TurnRate = 0;

			jeepItem->Pose.Orientation.y += (short)(jeep->TurnRate + jeep->ExtraRotation);
			jeep->MomentumAngle += ((short)(jeepItem->Pose.Orientation.y - jeep->MomentumAngle) / 32);
		}
		else
		{
			if (jeep->TurnRate < -ANGLE(1))
				jeep->TurnRate += ANGLE(1);
			else if (jeep->TurnRate > ANGLE(1))
				jeep->TurnRate -= ANGLE(1);
			else
				jeep->TurnRate = 0;

			jeepItem->Pose.Orientation.y += jeep->TurnRate + jeep->ExtraRotation;

			rot = jeepItem->Pose.Orientation.y - jeep->MomentumAngle;
			short momentum = (short)(728 - ((3 * jeep->Velocity) / 2048));