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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file vehiclelist.cpp Lists of vehicles. */
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#include "stdafx.h"
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#include "train.h"
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#include "vehiclelist.h"
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#include "group.h"
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#include "safeguards.h"
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/**
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* Pack a VehicleListIdentifier in a single uint32.
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* @return The packed identifier.
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*/
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uint32 VehicleListIdentifier::Pack()
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uint32 VehicleListIdentifier::Pack() const
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{
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byte c = this->company == OWNER_NONE ? 0xF : (byte)this->company;
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assert(c < (1 << 4));
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assert(this->vtype < (1 << 2));
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assert(this->index < (1 << 20));
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assert(this->type < VLT_END);
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assert_compile(VLT_END <= (1 << 3));
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return c << 28 | this->type << 23 | this->vtype << 26 | this->index;
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}
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/**
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* Unpack a VehicleListIdentifier from a single uint32.
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* @param data The data to unpack.
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* @return true iff the data was valid (enough).
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*/
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bool VehicleListIdentifier::Unpack(uint32 data)
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{
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byte c = GB(data, 28, 4);
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this->company = c == 0xF ? OWNER_NONE : (CompanyID)c;
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this->type = (VehicleListType)GB(data, 23, 3);
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this->vtype = (VehicleType)GB(data, 26, 2);
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this->index = GB(data, 0, 20);
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