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