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events.h
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#ifndef _rtech1_events_h
#define _rtech1_events_h
/* handles global events from the system such as
* window manager events (press X button)
* keyboard/mouse/joystick input (for some backends like SDL)
*/
#include <vector>
#include <map>
#include "pointer.h"
#ifdef USE_ALLEGRO5
struct ALLEGRO_EVENT_SOURCE;
struct ALLEGRO_EVENT_QUEUE;
#endif
#ifdef USE_SDL
#include <SDL.h>
#endif
class Keyboard;
class Joystick;
namespace Graphics{
class Bitmap;
}
namespace Util{
class WaitThread;
class EventManager{
public:
EventManager();
virtual void run(Keyboard & keyboard, std::map<int, ReferenceCount<Joystick> > joysticks);
virtual void waitForThread(WaitThread & thread);
virtual ~EventManager();
#ifdef USE_SDL
typedef SDLKey KeyType;
#else
typedef int KeyType;
#endif
inline const std::vector<KeyType> & getBufferedKeys() const {
return keys;
}
void deferResizeEvents(bool defer);
void enableKeyBuffer();
void disableKeyBuffer();
private:
enum Event{
CloseWindow,
ResizeScreen,
Key
};
struct ResizeEvent{
Event type;
int width;
int height;
bool enable;
};
virtual void dispatch(Event type, int arg1, int arg2);
virtual void dispatch(Event type, int arg1);
virtual void dispatch(Event type);
#ifdef USE_SDL
virtual void runSDL(Keyboard &, std::map<int, ReferenceCount<Joystick> >);
#endif
#ifdef USE_ALLEGRO
virtual void runAllegro(Keyboard & keyboard, std::map<int, ReferenceCount<Joystick> >);
#endif
#ifdef USE_ALLEGRO5
virtual void runAllegro5(Keyboard & keyboard, const std::map<int, ReferenceCount<Joystick> > &);
ALLEGRO_EVENT_QUEUE * queue;
#endif
std::vector<KeyType> keys;
bool bufferKeys;
bool deferResize;
/* Only need the last event */
ResizeEvent resize;
};
/* implement these classes to get the standard run loop */
class Logic{
public:
/* run a cycle of logic */
virtual void run() = 0;
/* the run loop should finish */
virtual bool done() = 0;
/* return a number of logic ticks for a given number of ticks on
* a real system.
*/
virtual double ticks(double systemTicks) = 0;
virtual ~Logic();
};
class Draw{
public:
Draw();
/* give the drawer a chance to draw stuff to the screen before any logic occurs.
* default implementation is to do nothing.
*/
virtual void drawFirst(const Graphics::Bitmap & screen);
/* standard draw method after logic has run */
virtual void draw(const Graphics::Bitmap & screen) = 0;
virtual ~Draw();
/* called by the standardLoop */
virtual void updateFrames();
virtual double getFps() const;
protected:
int frames;
unsigned int second_counter;
double fps;
};
void standardLoop(Logic & logic, Draw & draw);
/* true if the game should shutdown immediately */
bool shutdown();
extern int do_shutdown;
}
#endif

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