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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.
*
* $URL$
* $Id$
*
*/
// Palette animation module
#include "saga/saga.h"
#include "saga/gfx.h"
#include "saga/events.h"
#include "saga/palanim.h"
#include "saga/interface.h"
namespace Saga {
PalAnim::PalAnim(SagaEngine *vm) : _vm(vm) {
}
void PalAnim::loadPalAnim(const ByteArray &resourceData) {
clear();
if (resourceData.empty()) {
return;
}
ByteArrayReadStreamEndian readS(resourceData, _vm->isBigEndian());
if (_vm->getGameId() == GID_IHNM) {
return;
}
_entries.resize(readS.readUint16());
debug(3, "PalAnim::loadPalAnim(): Loading %d PALANIM entries.", _entries.size());
for (Common::Array<PalanimEntry>::iterator i = _entries.begin(); i != _entries.end(); ++i) {
i->cycle = 0;
i->colors.resize(readS.readUint16());
debug(2, "PalAnim::loadPalAnim(): Loading %d SAGA_COLOR structures.", i->colors.size());
i->palIndex.resize(readS.readUint16());
debug(2, "PalAnim::loadPalAnim(): Loading %d palette indices.\n", i->palIndex.size());
for (uint j = 0; j < i->palIndex.size(); j++) {
i->palIndex[j] = readS.readByte();
}
for (Common::Array<Color>::iterator j = i->colors.begin(); j != i->colors.end(); ++j) {
j->red = readS.readByte();
j->green = readS.readByte();
j->blue = readS.readByte();
}
}
}
void PalAnim::cycleStart() {
Event event;
if (_entries.empty()) {
return;
}
event.type = kEvTOneshot;
event.code = kPalAnimEvent;
event.op = kEventCycleStep;
event.time = PALANIM_CYCLETIME;
_vm->_events->queue(event);
}
void PalAnim::cycleStep(int vectortime) {
static PalEntry pal[256];
uint16 palIndex;
uint16 colIndex;
uint16 j;
uint16 cycle;
uint16 cycleLimit;
Event event;
if (_entries.empty()) {
return;
}
_vm->_gfx->getCurrentPal(pal);
for (Common::Array<PalanimEntry>::iterator i = _entries.begin(); i != _entries.end(); ++i) {
cycle = i->cycle;
cycleLimit = i->colors.size();
for (j = 0; j < i->palIndex.size(); j++) {
palIndex = i->palIndex[j];
colIndex = (cycle + j) % cycleLimit;
pal[palIndex].red = (byte) i->colors[colIndex].red;
pal[palIndex].green = (byte) i->colors[colIndex].green;
pal[palIndex].blue = (byte) i->colors[colIndex].blue;
}
i->cycle++;
if (i->cycle == cycleLimit) {
i->cycle = 0;
}
}
// Don't cycle the palette when the map is open
// Fixes bug #1900258 - "ITE: Glitch when looking at the map while at the docks"
if (_vm->_interface->getMode() != kPanelMap)
_vm->_gfx->setPalette(pal);
event.type = kEvTOneshot;
event.code = kPalAnimEvent;
event.op = kEventCycleStep;
event.time = vectortime + PALANIM_CYCLETIME;
_vm->_events->queue(event);
}
void PalAnim::clear() {
debug(3, "PalAnim::clear()");
_entries.clear();
}
} // End of namespace Saga
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