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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/scummsys.h"
#include "xeen/subtitles.h"
#include "xeen/events.h"
#include "xeen/files.h"
#include "xeen/xeen.h"
namespace Xeen {
static const char *SUBTITLE_LINE = "\f35\x3""c\v190\t000%s";
Subtitles::Subtitles() : _lineNum(-1), _boxSprites(nullptr), _lineEnd(0), _lineSize(0), _frameExpiryTime(0) {
}
Subtitles::~Subtitles() {
delete _boxSprites;
}
void Subtitles::loadSubtitles() {
File f("special.bin", 2);
while (f.pos() < f.size())
_lines.push_back(f.readString());
f.close();
}
void Subtitles::reset() {
_lineNum = -1;
}
void Subtitles::markTime() {
g_vm->_events->timeMark3();
}
bool Subtitles::timeElapsed() const {
return g_vm->_events->timeElapsed3() >= 2;
}
void Subtitles::setLine(int line) {
if (_lines.empty())
loadSubtitles();
markTime();
_lineNum = line;
_lineSize = _lines[_lineNum].size();
_lineEnd = 1;
_displayLine.clear();
}
bool Subtitles::active() const {
return _lineNum != -1;
}
bool Subtitles::wait(uint numFrames, bool interruptable) {
EventsManager &events = *g_vm->_events;
bool result = g_vm->shouldExit();
events.updateGameCounter();
while (!g_vm->shouldExit() && events.timeElapsed() < numFrames && !result) {
show();
events.pollEventsAndWait();
result = events.isKeyMousePressed();
}
events.clearEvents();
return result;
}
bool Subtitles::waitForLineOrSound() {
while (g_vm->_sound->isSoundPlaying() || active()) {
show();
g_vm->_events->pollEventsAndWait();
if (g_vm->_events->isKeyMousePressed())
return false;
}
return true;
}
void Subtitles::show() {
Sound &sound = *g_vm->_sound;
Windows &windows = *g_vm->_windows;
if (!sound._subtitles || !active() || g_vm->shouldExit()) {
// Subtitles aren't needed
reset();
} else {
if (timeElapsed()) {
_lineEnd = (_lineEnd + 1) % _lineSize;
int count = MAX(_lineEnd - 40, 0);
// Get the portion of the line to display
char buffer[1000];
strncpy(buffer, _lines[_lineNum].c_str() + count, _lineEnd - count);
buffer[_lineEnd - count] = '\0';
// Form the display line
_displayLine = Common::String::format(SUBTITLE_LINE, buffer);
markTime();
}
// Draw the box sprite
if (!_boxSprites)
// Not already loaded, so load it
_boxSprites = new SpriteResource("box.vga");
_boxSprites->draw(0, 0, Common::Point(36, 189));
// Write the subtitle line
windows[0].writeString(_displayLine);
if (_lineEnd == 0)
reset();
}
}
} // End of namespace Xeen
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