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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "ultima/ultima8/misc/debugger.h"
#include "ultima/ultima8/usecode/uc_list.h"
#include "ultima/ultima8/usecode/uc_machine.h"
namespace Ultima {
namespace Ultima8 {
uint16 UCList::getStringIndex(uint32 index) const {
return _elements[index * 2] + (_elements[index * 2 + 1] << 8);
}
const Std::string &UCList::getString(uint32 index) const {
uint16 sindex = getStringIndex(index);
return UCMachine::get_instance()->getString(sindex);
}
void UCList::freeStrings() {
UCMachine *ucm = UCMachine::get_instance();
for (unsigned int i = 0; i < _size; i++) {
ucm->freeString(getStringIndex(i));
}
free();
}
void UCList::copyStringList(const UCList &l) {
UCMachine *ucm = UCMachine::get_instance();
freeStrings();
for (unsigned int i = 0; i < l._size; i++) {
uint16 s = ucm->duplicateString(l.getStringIndex(i));
uint8 tmp[2]; // ugly...
tmp[0] = static_cast<uint8>(s & 0xFF);
tmp[1] = static_cast<uint8>(s >> 8);
append(tmp);
}
}
void UCList::unionStringList(UCList &l) {
UCMachine *ucm = UCMachine::get_instance();
// take the union of two stringlists
// i.e., append the second to this one, removing any duplicates
for (unsigned int i = 0; i < l._size; i++) {
if (!stringInList(l.getStringIndex(i))) {
append(l[i]);
} else {
// free it if we're not keeping it
ucm->freeString(l.getStringIndex(i));
}
}
l.free(); // NB: do _not_ free the strings in l, since they're in this one
}
void UCList::subtractStringList(const UCList &l) {
for (unsigned int i = 0; i < l._size; i++)
removeString(l.getStringIndex(i));
}
bool UCList::stringInList(uint16 s) const {
Std::string str = UCMachine::get_instance()->getString(s);
for (unsigned int i = 0; i < _size; i++)
if (getString(i) == str)
return true;
return false;
}
void UCList::assignString(uint32 index, uint16 str) {
// assign string str to element index
// free old contents of element index; take ownership of str(?)
UCMachine::get_instance()->freeString(getStringIndex(index));
_elements[index * _elementSize] = static_cast<uint8>(str & 0xFF);
_elements[index * _elementSize + 1] = static_cast<uint8>(str >> 8);
}
void UCList::removeString(uint16 s, bool nodel) {
// do we need to erase all occurrences of str or just the first one?
// (deleting all, currently)
const Std::string &str = UCMachine::get_instance()->getString(s);
for (unsigned int i = 0; i < _size; i++) {
if (getString(i) == str) {
// free string
if (!nodel)
UCMachine::get_instance()->freeString(getStringIndex(i));
// remove string from list
_elements.erase(_elements.begin() + i * _elementSize,
_elements.begin() + (i + 1)*_elementSize);
_size--;
i--; // back up a bit
}
}
}
void UCList::save(Common::WriteStream *ws) const {
ws->writeUint32LE(_elementSize);
ws->writeUint32LE(_size);
if (_size > 0)
ws->write(&(_elements[0]), _size * _elementSize);
}
bool UCList::load(Common::ReadStream *rs, uint32 version) {
_elementSize = rs->readUint32LE();
_size = rs->readUint32LE();
if (_elementSize * _size > 1024 * 1024) {
warning("Improbable UCList size %d x %d, corrupt save?", _elementSize, _size);
return false;
}
_elements.resize(_size * _elementSize);
if (_size > 0)
rs->read(&(_elements[0]), _size * _elementSize);
return true;
}
} // End of namespace Ultima8
} // End of namespace Ultima
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