scummvm/engines/teenagent/surface_list.cpp
2014-02-18 02:39:38 +01:00

80 lines
2.2 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 "teenagent/surface_list.h"
#include "teenagent/surface.h"
#include "teenagent/objects.h"
#include "teenagent/teenagent.h"
namespace TeenAgent {
SurfaceList::SurfaceList() : surfaces(NULL), surfacesCount(0) {}
SurfaceList::~SurfaceList() {
free();
}
void SurfaceList::load(Common::SeekableReadStream &stream, int subHack) {
free();
byte fn = stream.readByte();
if (stream.eos())
return;
surfacesCount = fn - subHack;
debugC(0, kDebugSurface, "loading %u surfaces from list (skip %d)", surfacesCount, subHack);
if (surfacesCount == 0)
return;
surfaces = new Surface[surfacesCount];
for (byte i = 0; i < surfacesCount; ++i) {
uint offset = stream.readUint16LE();
uint pos = stream.pos();
stream.seek(offset);
surfaces[i].load(stream, Surface::kTypeOns);
stream.seek(pos);
}
}
void SurfaceList::free() {
delete[] surfaces;
surfaces = NULL;
surfacesCount = 0;
}
void SurfaceList::render(Graphics::Surface *surface, const Common::Rect &clip) const {
for (uint i = 0; i < surfacesCount; ++i) {
const Surface &s = surfaces[i];
Common::Rect r(s.x, s.y, s.x + s.w, s.y + s.h);
if (r.bottom < clip.bottom || !clip.intersects(r))
continue;
r.clip(clip);
r.translate(-s.x, -s.y);
s.render(surface, r.left, r.top, false, r);
}
}
}