mirror of
https://github.com/libretro/scummvm.git
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120 lines
3.0 KiB
C++
120 lines
3.0 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/endian.h"
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#include "gob/gob.h"
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#include "gob/demos/scnplayer.h"
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#include "gob/global.h"
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#include "gob/util.h"
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#include "gob/draw.h"
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#include "gob/inter.h"
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#include "gob/videoplayer.h"
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namespace Gob {
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SCNPlayer::SCNPlayer(GobEngine *vm) : DemoPlayer(vm) {
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}
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SCNPlayer::~SCNPlayer() {
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}
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bool SCNPlayer::playStream(Common::SeekableReadStream &scn) {
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// Read labels
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LabelMap labels;
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if (!readLabels(scn, labels))
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return false;
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// Iterate over all lines
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while (!scn.err() && !scn.eos()) {
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Common::String line = scn.readLine();
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// Interpret
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if (line == "CLEAR") {
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clearScreen();
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} else if (lineStartsWith(line, "VIDEO:")) {
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evaluateVideoMode(line.c_str() + 6);
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} else if (lineStartsWith(line, "IMD_PRELOAD ")) {
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playVideo(line.c_str() + 12);
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} else if (lineStartsWith(line, "IMD ")) {
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playVideo(line.c_str() + 4);
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} else if (lineStartsWith(line, "GOTO ")) {
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gotoLabel(scn, labels, line.c_str() + 5);
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} else if (lineStartsWith(line, "REBASE0:ON")) {
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_rebase0 = true;
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} else if (lineStartsWith(line, "REBASE0:OFF")) {
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_rebase0 = false;
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} else if (lineStartsWith(line, "ADL ")) {
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playADL(line.c_str() + 4);
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}
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// Mind user input
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_vm->_util->processInput();
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if (_vm->shouldQuit())
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return true;
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}
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if (scn.err())
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return false;
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return true;
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}
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bool SCNPlayer::readLabels(Common::SeekableReadStream &scn, LabelMap &labels) {
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debugC(1, kDebugDemo, "Reading SCN labels");
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int32 startPos = scn.pos();
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// Iterate over all lines
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while (!scn.err() && !scn.eos()) {
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Common::String line = scn.readLine();
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if (lineStartsWith(line, "LABEL ")) {
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// Label => Add to the hashmap
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labels.setVal(line.c_str() + 6, scn.pos());
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debugC(2, kDebugDemo, "Found label \"%s\" (%d)", line.c_str() + 6, scn.pos());
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}
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}
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if (scn.err())
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return false;
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// Seek back
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if (!scn.seek(startPos))
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return false;
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return true;
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}
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void SCNPlayer::gotoLabel(Common::SeekableReadStream &scn,
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const LabelMap &labels, const char *label) {
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debugC(2, kDebugDemo, "Jumping to label \"%s\"", label);
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if (!labels.contains(label))
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return;
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scn.seek(labels.getVal(label));
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}
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} // End of namespace Gob
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