scummvm/engines/gob/rxyfile.cpp
2022-11-29 00:06:49 +01:00

109 lines
2.6 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 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 "common/stream.h"
#include "common/substream.h"
#include "gob/rxyfile.h"
namespace Gob {
RXYFile::RXYFile(Common::SeekableReadStream &rxy) : _width(0), _height(0) {
Common::SeekableReadStreamEndianWrapper sub(&rxy, false, DisposeAfterUse::NO);
load(sub);
}
RXYFile::RXYFile(Common::SeekableReadStreamEndian &rxy) : _width(0), _height(0) {
load(rxy);
}
RXYFile::RXYFile(uint16 width, uint16 height) : _realCount(1), _width(width), _height(height) {
_coords.resize(1);
_coords[0].left = 0;
_coords[0].top = 0;
_coords[0].right = _width - 1;
_coords[0].bottom = _height - 1;
}
RXYFile::~RXYFile() {
}
uint RXYFile::size() const {
return _coords.size();
}
uint16 RXYFile::getWidth() const {
return _width;
}
uint16 RXYFile::getHeight() const {
return _height;
}
uint16 RXYFile::getRealCount() const {
return _realCount;
}
const RXYFile::Coordinates &RXYFile::operator[](uint i) const {
assert(i < _coords.size());
return _coords[i];
}
void RXYFile::load(Common::SeekableReadStreamEndian &rxy) {
if (rxy.size() < 2)
return;
rxy.seek(0);
_realCount = rxy.readUint16();
uint16 count = (rxy.size() - 2) / 8;
_coords.resize(count);
for (CoordArray::iterator c = _coords.begin(); c != _coords.end(); ++c) {
c->left = rxy.readUint16();
c->right = rxy.readUint16();
c->top = rxy.readUint16();
c->bottom = rxy.readUint16();
if (c->left != 0xFFFF) {
_width = MAX<uint16>(_width , c->right + 1);
_height = MAX<uint16>(_height, c->bottom + 1);
}
}
}
uint16 RXYFile::add(uint16 left, uint16 top, uint16 right, uint16 bottom) {
_coords.resize(_coords.size() + 1);
_coords.back().left = left;
_coords.back().top = top;
_coords.back().right = right;
_coords.back().bottom = bottom;
return _coords.size() - 1;
}
} // End of namespace Gob