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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 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/endian.h"
#include "gob/gob.h"
#include "gob/demos/scnplayer.h"
#include "gob/global.h"
#include "gob/util.h"
#include "gob/draw.h"
#include "gob/inter.h"
#include "gob/videoplayer.h"
namespace Gob {
SCNPlayer::SCNPlayer(GobEngine *vm) : DemoPlayer(vm) {
}
SCNPlayer::~SCNPlayer() {
}
bool SCNPlayer::playStream(Common::SeekableReadStream &scn) {
// Read labels
LabelMap labels;
if (!readLabels(scn, labels))
return false;
// Iterate over all lines
while (!scn.err() && !scn.eos()) {
Common::String line = scn.readLine();
// Interpret
if (line == "CLEAR") {
clearScreen();
} else if (lineStartsWith(line, "VIDEO:")) {
evaluateVideoMode(line.c_str() + 6);
} else if (lineStartsWith(line, "IMD_PRELOAD ")) {
playVideo(line.c_str() + 12);
} else if (lineStartsWith(line, "IMD ")) {
playVideo(line.c_str() + 4);
} else if (lineStartsWith(line, "GOTO ")) {
gotoLabel(scn, labels, line.c_str() + 5);
} else if (lineStartsWith(line, "REBASE0:ON")) {
_rebase0 = true;
} else if (lineStartsWith(line, "REBASE0:OFF")) {
_rebase0 = false;
} else if (lineStartsWith(line, "ADL ")) {
playADL(line.c_str() + 4);
}
// Mind user input
_vm->_util->processInput();
if (_vm->shouldQuit())
return true;
}
if (scn.err())
return false;
return true;
}
bool SCNPlayer::readLabels(Common::SeekableReadStream &scn, LabelMap &labels) {
debugC(1, kDebugDemo, "Reading SCN labels");
int32 startPos = scn.pos();
// Iterate over all lines
while (!scn.err() && !scn.eos()) {
Common::String line = scn.readLine();
if (lineStartsWith(line, "LABEL ")) {
// Label => Add to the hashmap
labels.setVal(line.c_str() + 6, scn.pos());
debugC(2, kDebugDemo, "Found label \"%s\" (%d)", line.c_str() + 6, scn.pos());
}
}
if (scn.err())
return false;
// Seek back
if (!scn.seek(startPos))
return false;
return true;
}
void SCNPlayer::gotoLabel(Common::SeekableReadStream &scn,
const LabelMap &labels, const char *label) {
debugC(2, kDebugDemo, "Jumping to label \"%s\"", label);
if (!labels.contains(label))
return;
scn.seek(labels.getVal(label));
}
} // End of namespace Gob
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