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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.
*
*/
#ifndef XEEN_EVENTS_H
#define XEEN_EVENTS_H
#include "common/scummsys.h"
#include "common/events.h"
#include "common/queue.h"
#include "xeen/sprites.h"
namespace Xeen {
#define GAME_FRAME_RATE (1000 / 50)
#define GAME_FRAME_TIME 50
#define MAX_PENDING_EVENTS 5
class XeenEngine;
struct PendingEvent {
Common::KeyState _keyState;
bool _leftButton;
bool _rightButton;
PendingEvent() : _leftButton(false), _rightButton(false) {}
PendingEvent(const Common::KeyState &keyState) : _keyState(keyState), _leftButton(false), _rightButton(false) {}
PendingEvent(bool leftButton, bool rightButton) : _leftButton(leftButton), _rightButton(rightButton) {}
/**
* Returns true if a keyboard event is pending
*/
bool isKeyboard() const { return _keyState.keycode != Common::KEYCODE_INVALID; }
/**
* Returns ture if a mouse button event is pending
*/
bool isMouse() const { return _leftButton || _rightButton; }
};
class EventsManager {
private:
XeenEngine *_vm;
uint32 _frameCounter;
uint32 _priorFrameCounterTime;
uint32 _gameCounter;
uint32 _gameCounters[6];
uint32 _playTime;
Common::Queue<PendingEvent> _pendingEvents;
SpriteResource _sprites;
bool _mousePressed;
/**
* Handles moving to the next game frame
*/
void nextFrame();
public:
Common::Point _mousePos;
public:
EventsManager(XeenEngine *vm);
~EventsManager();
/*
* Set the cursor
*/
void setCursor(int cursorId);
/**
* Show the mouse cursor
*/
void showCursor();
/**
* Hide the mouse cursor
*/
void hideCursor();
/**
* Returns if the mouse cursor is visible
*/
bool isCursorVisible();
/**
* Polls the ScummVM backend for any pending events
*/
void pollEvents();
/**
* Polls for events, and wait a slight delay. This ensures the game doesn't use up 100% of the CPU
*/
void pollEventsAndWait();
/**
* Clears all pending events
*/
void clearEvents();
/**
* Waits for a mouse press to be released
*/
void debounceMouse();
/**
* Adds a keyboard event to the queue
*/
void addEvent(const Common::KeyState &keyState);
/**
* Adds a mouse button event to the queue
*/
void addEvent(bool leftButton, bool rightButton);
/**
* Returns the next pending key/mouse press, if any
*/
bool getEvent(PendingEvent &pe);
/**
* Returns true if a key or mouse event is pending
*/
bool isEventPending() const { return !_pendingEvents.empty(); }
/**
* Returns true if a key or mouse press is pending
*/
bool isKeyMousePressed();
void updateGameCounter() { _gameCounter = _frameCounter; }
void timeMark1() { _gameCounters[1] = _frameCounter; }
void timeMark2() { _gameCounters[2] = _frameCounter; }
void timeMark3() { _gameCounters[3] = _frameCounter; }
void timeMark4() { _gameCounters[4] = _frameCounter; }
void timeMark5() { _gameCounters[5] = _frameCounter; }
uint32 timeElapsed() const { return _frameCounter - _gameCounter; }
uint32 timeElapsed1() const { return _frameCounter - _gameCounters[1]; }
uint32 timeElapsed2() const { return _frameCounter - _gameCounters[2]; }
uint32 timeElapsed3() const { return _frameCounter - _gameCounters[3]; }
uint32 timeElapsed4() const { return _frameCounter - _gameCounters[4]; }
uint32 timeElapsed5() const { return _frameCounter - _gameCounters[5]; }
uint32 getTicks() { return _frameCounter; }
uint32 playTime() const { return _playTime; }
void setPlayTime(uint32 time) { _playTime = time; }
/**
* Waits for a given number of frames
* @param numFrames Number of frames to wait
* @param interruptable If set, aborts if the mouse or a key is pressed
* @returns True if the wait was aborted
*/
bool wait(uint numFrames, bool interruptable = true);
/**
* Pause for a set amount
*/
void ipause(uint amount);
/**
* Pauses a set amount past the previous call to timeMark5
*/
void ipause5(uint amount);
/**
* Waits for a key or mouse press, animating the 3d view in the background
*/
void waitForPressAnimated();
/**
* Waits for a key or mouse press
*/
void waitForPress();
};
} // End of namespace Xeen
#endif /* XEEN_EVENTS_H */
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