scummvm/engines/prince/object.cpp
2018-05-05 23:17:35 +02:00

117 lines
2.9 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 "common/archive.h"
#include "common/debug-channels.h"
#include "common/debug.h"
#include "common/stream.h"
#include "graphics/surface.h"
#include "prince/object.h"
#include "prince/resource.h"
namespace Prince {
Object::Object() : _surface(nullptr), _x(0), _y(0), _z(0), _flags(0), _width(0),
_height(0), _zoomTime(0), _zoomSurface(nullptr)
{
}
Object::~Object() {
if (_surface != nullptr) {
_surface->free();
delete _surface;
_surface = nullptr;
}
if (_zoomSurface != nullptr) {
_zoomSurface->free();
delete _zoomSurface;
_zoomSurface = nullptr;
}
}
void Object::loadSurface(Common::SeekableReadStream &stream) {
stream.skip(4);
_width = stream.readUint16LE();
_height = stream.readUint16LE();
_surface = new Graphics::Surface();
_surface->create(_width, _height, Graphics::PixelFormat::createFormatCLUT8());
for (int h = 0; h < _surface->h; h++) {
stream.read(_surface->getBasePtr(0, h), _surface->w);
}
}
bool Object::loadFromStream(Common::SeekableReadStream &stream) {
int32 pos = stream.pos();
uint16 x = stream.readUint16LE();
if (x == 0xFFFF) {
return false;
}
_x = x;
_y = stream.readSint16LE(); // skull mini-game has some signed y coords
const Common::String obStreamName = Common::String::format("OB%02d", stream.readUint16LE());
Common::SeekableReadStream *obStream = SearchMan.createReadStreamForMember(obStreamName);
if (obStream) {
obStream = Resource::getDecompressedStream(obStream);
loadSurface(*obStream);
}
delete obStream;
_flags = stream.readUint16LE();
_z = stream.readUint16LE();
stream.seek(pos + 16);
return true;
}
void Object::setData(AttrId dataId, int32 value) {
switch (dataId) {
case kObjectX:
_x = value;
break;
case kObjectY:
_y = value;
break;
default:
assert(false);
}
}
int32 Object::getData(AttrId dataId) {
switch (dataId) {
case kObjectX:
return _x;
case kObjectY:
return _y;
default:
assert(false);
return 0;
}
}
} // End of namespace Prince