scummvm/engines/dragons/dragonflg.cpp
2020-02-25 14:43:42 +01:00

94 lines
2.3 KiB
C++

/* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "dragonflg.h"
#include "bigfile.h"
namespace Dragons {
// Properties
Properties::Properties()
: _count(0), _properties(0) {
}
void Properties::init(uint count, byte *properties) {
_count = count;
_properties = properties;
}
void Properties::clear() {
uint32 size = getSize();
for (uint32 i = 0; i < size; ++i) {
_properties[i] = 0;
}
}
bool Properties::get(uint32 propertyId) {
uint index;
byte mask;
getProperyPos(propertyId, index, mask);
return (_properties[index] & mask) != 0;
}
void Properties::set(uint32 propertyId, bool value) {
uint index;
byte mask;
getProperyPos(propertyId, index, mask);
if (value)
_properties[index] |= mask;
else
_properties[index] &= ~mask;
}
uint32 Properties::getSize() {
return (_count >> 3) + 1;
}
void Properties::getProperyPos(uint32 propertyId, uint &index, byte &mask) {
assert(propertyId < _count);
propertyId &= 0xFFFF;
index = propertyId >> 3;
mask = 1 << (propertyId & 7);
}
DragonFLG::DragonFLG(BigfileArchive *bigfileArchive) {
_data = bigfileArchive->load("dragon.flg", _dataSize);
properties.init(288, _data);
}
DragonFLG::~DragonFLG() {
if (_data) {
delete _data;
}
}
bool DragonFLG::get(uint32 propertyId) {
return properties.get(propertyId);
}
void DragonFLG::set(uint32 propertyId, bool value) {
properties.set(propertyId, value);
}
} // End of namespace Dragons