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Diffstat (limited to 'engines/tsage/events.cpp')
| -rw-r--r-- | engines/tsage/events.cpp | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/engines/tsage/events.cpp b/engines/tsage/events.cpp new file mode 100644 index 0000000000..5348935dd9 --- /dev/null +++ b/engines/tsage/events.cpp @@ -0,0 +1,235 @@ +/* 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: https://scummvm-misc.svn.sourceforge.net/svnroot/scummvm-misc/trunk/engines/tsage/events.cpp $ + * $Id: events.cpp 224 2011-02-10 10:58:52Z dreammaster $ + * + */ + +#include "common/events.h" +#include "common/singleton.h" +#include "graphics/cursorman.h" +#include "common/system.h" + +#include "tsage/events.h" +#include "tsage/core.h" +#include "tsage/staticres.h" +#include "tsage/tsage.h" +#include "tsage/globals.h" + +namespace tSage { + +EventsClass::EventsClass() { + _frameNumber = 0; + _priorFrameTime = 0; + _prevDelayFrame = 0; + _saver->addListener(this); +} + +bool EventsClass::pollEvent() { + uint32 milli = g_system->getMillis(); + if ((milli - _priorFrameTime) >= GAME_FRAME_TIME) { + _priorFrameTime = milli; + ++_frameNumber; + + g_system->updateScreen(); + } + + if (!g_system->getEventManager()->pollEvent(_event)) return false; + + // Handle keypress + switch (_event.type) { + case Common::EVENT_QUIT: + case Common::EVENT_RTL: + break; + + case Common::EVENT_MOUSEMOVE: + case Common::EVENT_LBUTTONDOWN: + case Common::EVENT_LBUTTONUP: + case Common::EVENT_RBUTTONDOWN: + case Common::EVENT_RBUTTONUP: + // Keep a copy of the current mouse position + _mousePos = _event.mouse; + break; + + default: + break; + } + + return true; +} + +void EventsClass::waitForPress(int eventMask) { + Event evt; + while (!_vm->getEventManager()->shouldQuit() && !getEvent(evt, eventMask)) + g_system->delayMillis(10); +} + +/** + * Standard event retrieval, which only returns keyboard and mouse clicks + */ +bool EventsClass::getEvent(Event &evt, int eventMask) { + while (pollEvent() && !_vm->getEventManager()->shouldQuit()) { + evt.handled = false; + evt.eventType = EVENT_NONE; + evt.mousePos = _event.mouse; + evt.kbd = _event.kbd; + + switch (_event.type) { + case Common::EVENT_MOUSEMOVE: + evt.eventType = EVENT_MOUSE_MOVE; + break; + case Common::EVENT_LBUTTONDOWN: + evt.eventType = EVENT_BUTTON_DOWN; + evt.btnState = BTNSHIFT_LEFT; + break; + case Common::EVENT_RBUTTONDOWN: + evt.eventType = EVENT_BUTTON_DOWN; + evt.btnState = BTNSHIFT_RIGHT; + break; + case Common::EVENT_MBUTTONDOWN: + evt.eventType = EVENT_BUTTON_DOWN; + evt.btnState = BTNSHIFT_MIDDLE; + break; + case Common::EVENT_LBUTTONUP: + case Common::EVENT_RBUTTONUP: + case Common::EVENT_MBUTTONUP: + evt.eventType = EVENT_BUTTON_UP; + evt.btnState = 0; + break; + case Common::EVENT_KEYDOWN: + evt.eventType = EVENT_KEYPRESS; + evt.kbd = _event.kbd; + break; + default: + break; + } + + if (evt.eventType & eventMask) + return true; + } + + return false; +} + +/** + * Sets the specified cursor + * + * @cursorType Specified cursor number + */ +void EventsClass::setCursor(CursorType cursorType) { + _globals->clearFlag(122); + + if (cursorType != CURSOR_ARROW) + _currentCursor = cursorType; + if (!CursorMan.isVisible()) + showCursor(); + + const byte *cursor; + bool delFlag = true; + uint size; + + switch (cursorType) { + case CURSOR_CROSSHAIRS: + // Crosshairs cursor + cursor = _vm->_dataManager->getSubResource(4, 1, 6, &size); + _globals->setFlag(122); + break; + + case CURSOR_LOOK: + // Look cursor + cursor = _vm->_dataManager->getSubResource(4, 1, 5, &size); + break; + + case CURSOR_USE: + // Use cursor + cursor = _vm->_dataManager->getSubResource(4, 1, 4, &size); + break; + + case CURSOR_TALK: + // Talk cursor + cursor = _vm->_dataManager->getSubResource(4, 1, 3, &size); + break; + + case CURSOR_ARROW: + // Arrow cursor + cursor = CURSOR_ARROW_DATA; + delFlag = false; + break; + + default: + // Walk cursor + cursor = CURSOR_WALK_DATA; + delFlag = false; + break; + } + + // Decode the cursor + GfxSurface s = surfaceFromRes(cursor); + + Graphics::Surface surface = s.lockSurface(); + const byte *cursorData = (const byte *)surface.getBasePtr(0, 0); + CursorMan.replaceCursor(cursorData, surface.w, surface.h, s._centroid.x, s._centroid.y, s._transColour); + s.unlockSurface(); + + if (delFlag) + DEALLOCATE(cursor); +} + +void EventsClass::setCursor(Graphics::Surface &cursor, int transColour, const Common::Point &hotspot, CursorType cursorId) { + const byte *cursorData = (const byte *)cursor.getBasePtr(0, 0); + CursorMan.replaceCursor(cursorData, cursor.w, cursor.h, hotspot.x, hotspot.y, transColour); + + _currentCursor = cursorId; +} + +void EventsClass::setCursorFromFlag() { + setCursor(_globals->getFlag(122) ? CURSOR_CROSSHAIRS : _currentCursor); +} + +void EventsClass::showCursor() { + CursorMan.showMouse(true); +} + +void EventsClass::hideCursor() { + CursorMan.showMouse(false); +} + +/** + * Delays the game for the specified number of frames, if necessary, from the + * previous time the delay method was called + */ +void EventsClass::delay(int numFrames) { + while (_frameNumber < (_prevDelayFrame + numFrames)) { + uint32 delayAmount = CLIP(_priorFrameTime + GAME_FRAME_TIME - g_system->getMillis(), + (uint32)0, (uint32)GAME_FRAME_TIME); + if (delayAmount > 0) + g_system->delayMillis(delayAmount); + + ++_frameNumber; + _priorFrameTime = g_system->getMillis(); + } + + g_system->updateScreen(); + _prevDelayFrame = _frameNumber; + _priorFrameTime = g_system->getMillis(); +} + +} // end of namespace tSage |