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-rw-r--r--engines/composer/composer.cpp515
1 files changed, 515 insertions, 0 deletions
diff --git a/engines/composer/composer.cpp b/engines/composer/composer.cpp
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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 "common/config-manager.h"
+#include "common/events.h"
+#include "common/file.h"
+#include "common/random.h"
+#include "common/fs.h"
+#include "common/keyboard.h"
+#include "common/substream.h"
+
+#include "graphics/cursorman.h"
+#include "graphics/surface.h"
+#include "graphics/pixelformat.h"
+
+#include "engines/util.h"
+#include "engines/advancedDetector.h"
+
+#include "audio/audiostream.h"
+
+#include "composer/composer.h"
+#include "composer/graphics.h"
+#include "composer/resource.h"
+
+namespace Composer {
+
+ComposerEngine::ComposerEngine(OSystem *syst, const ComposerGameDescription *gameDesc) : Engine(syst), _gameDescription(gameDesc) {
+ _rnd = new Common::RandomSource("composer");
+ _audioStream = NULL;
+}
+
+ComposerEngine::~ComposerEngine() {
+ DebugMan.clearAllDebugChannels();
+
+ for (Common::List<Library>::iterator i = _libraries.begin(); i != _libraries.end(); i++)
+ delete i->_archive;
+ for (Common::List<Sprite>::iterator i = _sprites.begin(); i != _sprites.end(); i++)
+ i->_surface.free();
+
+ delete _rnd;
+}
+
+Common::Error ComposerEngine::run() {
+ Common::Event event;
+
+ _vars.resize(1000);
+ for (uint i = 0; i < _vars.size(); i++)
+ _vars[i] = 0;
+
+ _queuedScripts.resize(10);
+ for (uint i = 0; i < _queuedScripts.size(); i++) {
+ _queuedScripts[i]._count = 0;
+ _queuedScripts[i]._scriptId = 0;
+ }
+
+ _mouseVisible = true;
+ _mouseEnabled = false;
+ _mouseSpriteId = 0;
+ _lastButton = NULL;
+
+ _directoriesToStrip = 1;
+ if (!_bookIni.loadFromFile("book.ini")) {
+ _directoriesToStrip = 0;
+ if (!_bookIni.loadFromFile("programs/book.ini"))
+ error("failed to find book.ini");
+ }
+
+ uint width = 640;
+ if (_bookIni.hasKey("Width", "Common"))
+ width = atoi(getStringFromConfig("Common", "Width").c_str());
+ uint height = 480;
+ if (_bookIni.hasKey("Height", "Common"))
+ height = atoi(getStringFromConfig("Common", "Height").c_str());
+ initGraphics(width, height, true);
+ _surface.create(width, height, Graphics::PixelFormat::createFormatCLUT8());
+ _needsUpdate = true;
+
+ loadLibrary(0);
+
+ uint fps = atoi(getStringFromConfig("Common", "FPS").c_str());
+ uint frameTime = 1000 / fps;
+ uint32 lastDrawTime = 0;
+ while (!shouldQuit()) {
+ for (uint i = 0; i < _pendingPageChanges.size(); i++) {
+ if (_pendingPageChanges[i]._remove)
+ unloadLibrary(_pendingPageChanges[i]._pageId);
+ else
+ loadLibrary(_pendingPageChanges[i]._pageId);
+
+ lastDrawTime = _system->getMillis();
+ }
+ _pendingPageChanges.clear();
+
+ uint32 thisTime = _system->getMillis();
+ for (uint i = 0; i < _queuedScripts.size(); i++) {
+ QueuedScript &script = _queuedScripts[i];
+ if (!script._count)
+ continue;
+ if (script._baseTime + script._duration > thisTime)
+ continue;
+ if (script._count != 0xffffffff)
+ script._count--;
+ script._baseTime = thisTime;
+ runScript(script._scriptId, i, 0, 0);
+ }
+
+ if (lastDrawTime + frameTime <= thisTime) {
+ // catch up if we're more than 2 frames behind
+ if (lastDrawTime + (frameTime * 2) <= thisTime)
+ lastDrawTime = thisTime;
+ else
+ lastDrawTime += frameTime;
+
+ redraw();
+
+ processAnimFrame();
+ } else if (_needsUpdate) {
+ redraw();
+ }
+
+ while (_eventMan->pollEvent(event)) {
+ switch (event.type) {
+ case Common::EVENT_LBUTTONDOWN:
+ onMouseDown(event.mouse);
+ break;
+
+ case Common::EVENT_LBUTTONUP:
+ break;
+
+ case Common::EVENT_RBUTTONDOWN:
+ break;
+
+ case Common::EVENT_MOUSEMOVE:
+ onMouseMove(event.mouse);
+ break;
+
+ case Common::EVENT_KEYDOWN:
+ switch (event.kbd.keycode) {
+ case Common::KEYCODE_d:
+ /*if (event.kbd.hasFlags(Common::KBD_CTRL)) {
+ // Start the debugger
+ getDebugger()->attach();
+ getDebugger()->onFrame();
+ }*/
+ break;
+
+ case Common::KEYCODE_q:
+ if (event.kbd.hasFlags(Common::KBD_CTRL))
+ quitGame();
+ break;
+
+ default:
+ break;
+ }
+
+ onKeyDown(event.kbd.keycode);
+ break;
+
+ case Common::EVENT_QUIT:
+ case Common::EVENT_RTL:
+ quitGame();
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ _system->delayMillis(20);
+ }
+
+ return Common::kNoError;
+}
+
+void ComposerEngine::onMouseDown(const Common::Point &pos) {
+ if (!_mouseEnabled || !_mouseVisible)
+ return;
+
+ const Sprite *sprite = getSpriteAtPos(pos);
+ const Button *button = getButtonFor(sprite, pos);
+ if (!button)
+ return;
+
+ // TODO: other buttons?
+ uint16 buttonsDown = 1; // MK_LBUTTON
+
+ uint16 spriteId = sprite ? sprite->_id : 0;
+ runScript(button->_scriptId, button->_id, buttonsDown, spriteId);
+}
+
+void ComposerEngine::onMouseMove(const Common::Point &pos) {
+ _lastMousePos = pos;
+
+ if (!_mouseEnabled || !_mouseVisible)
+ return;
+
+ // TODO: do we need to keep track of this?
+ uint buttonsDown = 0;
+
+ const Sprite *sprite = getSpriteAtPos(pos);
+ const Button *button = getButtonFor(sprite, pos);
+ if (_lastButton != button) {
+ if (_lastButton && _lastButton->_scriptIdRollOff)
+ runScript(_lastButton->_scriptIdRollOff, _lastButton->_id, buttonsDown, 0);
+ _lastButton = button;
+ if (_lastButton && _lastButton->_scriptIdRollOn)
+ runScript(_lastButton->_scriptIdRollOn, _lastButton->_id, buttonsDown, 0);
+ }
+
+ if (_mouseSpriteId) {
+ addSprite(_mouseSpriteId, 0, 0, _lastMousePos - _mouseOffset);
+ _needsUpdate = true;
+ }
+}
+
+void ComposerEngine::onKeyDown(uint16 keyCode) {
+ runEvent(kEventKeyDown, keyCode, 0, 0);
+ runEvent(kEventChar, keyCode, 0, 0);
+}
+
+void ComposerEngine::setCursor(uint16 id, const Common::Point &offset) {
+ _mouseOffset = offset;
+ if (_mouseSpriteId == id)
+ return;
+
+ if (_mouseSpriteId && _mouseVisible) {
+ removeSprite(_mouseSpriteId, 0);
+ }
+ _mouseSpriteId = id;
+ if (_mouseSpriteId && _mouseVisible) {
+ addSprite(_mouseSpriteId, 0, 0, _lastMousePos - _mouseOffset);
+ }
+}
+
+void ComposerEngine::setCursorVisible(bool visible) {
+ if (visible && !_mouseVisible) {
+ _mouseVisible = true;
+ if (_mouseSpriteId)
+ addSprite(_mouseSpriteId, 0, 0, _lastMousePos - _mouseOffset);
+ onMouseMove(_lastMousePos);
+ } else if (!visible && _mouseVisible) {
+ _mouseVisible = false;
+ if (_mouseSpriteId)
+ removeSprite(_mouseSpriteId, 0);
+ }
+}
+
+Common::String ComposerEngine::getStringFromConfig(const Common::String &section, const Common::String &key) {
+ Common::String value;
+ if (!_bookIni.getKey(key, section, value))
+ error("failed to find key '%s' in section '%s' of book config", key.c_str(), section.c_str());
+ return value;
+}
+
+Common::String ComposerEngine::getFilename(const Common::String &section, uint id) {
+ Common::String key = Common::String::format("%d", id);
+ Common::String filename = getStringFromConfig(section, key);
+
+ return mangleFilename(filename);
+}
+
+Common::String ComposerEngine::mangleFilename(Common::String filename) {
+ while (filename.size() && (filename[0] == '~' || filename[0] == ':' || filename[0] == '\\'))
+ filename = filename.c_str() + 1;
+
+ uint slashesToStrip = _directoriesToStrip;
+ while (slashesToStrip--) {
+ for (uint i = 0; i < filename.size(); i++) {
+ if (filename[i] != '\\')
+ continue;
+ filename = filename.c_str() + i + 1;
+ break;
+ }
+ }
+
+ Common::String outFilename;
+ for (uint i = 0; i < filename.size(); i++) {
+ if (filename[i] == '\\')
+ outFilename += '/';
+ else
+ outFilename += filename[i];
+ }
+ return outFilename;
+}
+
+void ComposerEngine::loadLibrary(uint id) {
+ if (!id)
+ id = atoi(getStringFromConfig("Common", "StartUp").c_str());
+ Common::String filename = getFilename("Libs", id);
+
+ Library library;
+
+ library._id = id;
+ library._archive = new ComposerArchive();
+ if (!library._archive->openFile(filename))
+ error("failed to open '%s'", filename.c_str());
+ _libraries.push_front(library);
+
+ Library &newLib = _libraries.front();
+
+ Common::Array<uint16> buttonResources = library._archive->getResourceIDList(ID_BUTN);
+ for (uint i = 0; i < buttonResources.size(); i++) {
+ uint16 buttonId = buttonResources[i];
+ Common::SeekableReadStream *stream = library._archive->getResource(ID_BUTN, buttonId);
+ Button button(stream, buttonId, getGameType());
+
+ bool inserted = false;
+ for (Common::List<Button>::iterator b = newLib._buttons.begin(); b != newLib._buttons.end(); b++) {
+ if (button._zorder < b->_zorder)
+ continue;
+ newLib._buttons.insert(b, button);
+ inserted = true;
+ break;
+ }
+ if (!inserted)
+ newLib._buttons.push_back(button);
+ }
+
+ // add background sprite, if it exists
+ if (hasResource(ID_BMAP, 1000))
+ setBackground(1000);
+
+ // TODO: better CTBL logic
+ loadCTBL(1000, 100);
+
+ // Run the startup script.
+ runScript(1000, 0, 0, 0);
+
+ _mouseEnabled = true;
+ onMouseMove(_lastMousePos);
+
+ runEvent(kEventLoad, id, 0, 0);
+}
+
+void ComposerEngine::unloadLibrary(uint id) {
+ for (Common::List<Library>::iterator i = _libraries.begin(); i != _libraries.end(); i++) {
+ if (i->_id != id)
+ continue;
+
+ for (Common::List<Animation *>::iterator j = _anims.begin(); j != _anims.end(); j++) {
+ delete *j;
+ }
+ _anims.clear();
+ for (Common::List<Pipe *>::iterator j = _pipes.begin(); j != _pipes.end(); j++) {
+ delete *j;
+ }
+ _pipes.clear();
+
+ for (Common::List<Sprite>::iterator j = _sprites.begin(); j != _sprites.end(); j++) {
+ j->_surface.free();
+ }
+ _sprites.clear();
+ i->_buttons.clear();
+
+ _lastButton = NULL;
+
+ _mixer->stopAll();
+ _audioStream = NULL;
+
+ for (uint j = 0; j < _queuedScripts.size(); j++) {
+ _queuedScripts[j]._count = 0;
+ _queuedScripts[j]._scriptId = 0;
+ }
+
+ delete i->_archive;
+ _libraries.erase(i);
+
+ runEvent(kEventUnload, id, 0, 0);
+
+ return;
+ }
+
+ error("tried to unload library %d, which isn't loaded", id);
+}
+
+bool ComposerEngine::hasResource(uint32 tag, uint16 id) {
+ for (Common::List<Library>::iterator i = _libraries.begin(); i != _libraries.end(); i++)
+ if (i->_archive->hasResource(tag, id))
+ return true;
+
+ return false;
+}
+
+Common::SeekableReadStream *ComposerEngine::getResource(uint32 tag, uint16 id) {
+ for (Common::List<Library>::iterator i = _libraries.begin(); i != _libraries.end(); i++)
+ if (i->_archive->hasResource(tag, id))
+ return i->_archive->getResource(tag, id);
+
+ error("No loaded library contains '%s' %04x", tag2str(tag), id);
+}
+
+Button::Button(Common::SeekableReadStream *stream, uint16 id, uint gameType) {
+ _id = id;
+
+ _type = stream->readUint16LE();
+ _active = (_type & 0x8000) ? true : false;
+ _type &= 0xfff;
+ debug(9, "button %d: type %d, active %d", id, _type, _active);
+
+ uint16 flags = 0;
+ uint16 size = 4;
+ if (gameType == GType_ComposerV1) {
+ flags = stream->readUint16LE();
+ _zorder = 0;
+ _scriptId = stream->readUint16LE();
+ _scriptIdRollOn = 0;
+ _scriptIdRollOff = 0;
+ } else {
+ _zorder = stream->readUint16LE();
+ _scriptId = stream->readUint16LE();
+ _scriptIdRollOn = stream->readUint16LE();
+ _scriptIdRollOff = stream->readUint16LE();
+
+ stream->skip(4);
+
+ size = stream->readUint16LE();
+ }
+
+ switch (_type) {
+ case kButtonRect:
+ case kButtonEllipse:
+ if (size != 4)
+ error("button %d of type %d had %d points, not 4", id, _type, size);
+ _rect.left = stream->readSint16LE();
+ _rect.top = stream->readSint16LE();
+ _rect.right = stream->readSint16LE();
+ _rect.bottom = stream->readSint16LE();
+ break;
+ case kButtonSprites:
+ if (gameType == GType_ComposerV1)
+ error("encountered kButtonSprites in V1 data");
+ for (uint i = 0; i < size; i++) {
+ _spriteIds.push_back(stream->readUint16LE());
+ }
+ break;
+ default:
+ error("unknown button type %d", _type);
+ }
+
+ if (flags & 0x40) {
+ _scriptIdRollOn = stream->readUint16LE();
+ _scriptIdRollOff = stream->readUint16LE();
+ }
+
+ delete stream;
+}
+
+bool Button::contains(const Common::Point &pos) const {
+ switch (_type) {
+ case kButtonRect:
+ return _rect.contains(pos);
+ case kButtonEllipse:
+ if (!_rect.contains(pos))
+ return false;
+ {
+ int16 a = _rect.width() / 2;
+ int16 b = _rect.height() / 2;
+ if (!a || !b)
+ return false;
+ Common::Point adjustedPos = pos - Common::Point(_rect.left + a, _rect.top + b);
+ return ((adjustedPos.x*adjustedPos.x)/(a*a) + (adjustedPos.y*adjustedPos.y)/(b*b) < 1);
+ }
+ case kButtonSprites:
+ return false;
+ default:
+ error("internal error (button type %d)", _type);
+ }
+}
+
+const Button *ComposerEngine::getButtonFor(const Sprite *sprite, const Common::Point &pos) {
+ for (Common::List<Library>::iterator l = _libraries.begin(); l != _libraries.end(); l++) {
+ for (Common::List<Button>::iterator i = l->_buttons.reverse_begin(); i != l->_buttons.end(); --i) {
+ if (!i->_active)
+ continue;
+
+ if (i->_spriteIds.empty()) {
+ if (i->contains(pos))
+ return &(*i);
+ continue;
+ }
+
+ if (!sprite)
+ continue;
+
+ for (uint j = 0; j < i->_spriteIds.size(); j++) {
+ if (i->_spriteIds[j] == sprite->_id)
+ return &(*i);
+ }
+ }
+ }
+
+ return NULL;
+}
+
+} // End of namespace Composer
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