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changed event hooking, event thread now safe

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This commit is contained in:
James Turk 2003-06-09 02:46:22 +00:00
parent 6bec0bc602
commit 9f0b7ec75e
2 changed files with 46 additions and 38 deletions
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12
include/ZE_ZEngine.h
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@ -13,7 +13,7 @@
\brief Definition file for core ZEngine class. \brief Definition file for core ZEngine class.
ZEngine Game Engine core Engine definition. ZEngine Game Engine core Engine definition.
<br>$Id: ZE_ZEngine.h,v 1.37 2003/06/07 00:34:43 cozman Exp $<br> <br>$Id: ZE_ZEngine.h,v 1.38 2003/06/09 02:46:22 cozman Exp $<br>
\author James Turk \author James Turk
**/ **/
@ -107,6 +107,8 @@ class ZEngine
bool mLogAllErrors; bool mLogAllErrors;
//! C-style FILE* for error logging. //! C-style FILE* for error logging.
FILE *mErrlog; FILE *mErrlog;
//! Event filter, for users who need to process their own events.
SDL_EventFilter mEventFilter;
#ifdef USE_SDL_MIXER #ifdef USE_SDL_MIXER
//! Sound Bitrate //! Sound Bitrate
@ -477,9 +479,11 @@ class ZEngine
/*! /*!
\brief Add a SDL Event Filter for user processing of events. \brief Add a SDL Event Filter for user processing of events.
This is only needed when you need tight control with ZEngine. The parameter is simply passed to SDL_SetEventFilter, This is only needed when you need tight control with ZEngine. The parameter processed as if it were passed to
generally only those with a good amount of SDL experience should use this function or ZEngine's internal message SDL_SetEventFilter, generally only those with a good amount of SDL experience should use this function or
state could be corrupted. For more information on SDL_SetEventFilter see http://sdldoc.csn.ul.ie/sdlseteventfilter.php. ZEngine's internal message state could be corrupted. For more information on SDL_SetEventFilter see
http://sdldoc.csn.ul.ie/sdlseteventfilter.php. (FYI: The parameter is now actually processed in check events,
not passed to the SDL function, this is done because of problems with singletons and event threading.)
\since 0.8.2 \since 0.8.2
\param filter An SDL_EventFilter (A function that takes a const SDL_Event* and returns 0 if the event should be removed from \param filter An SDL_EventFilter (A function that takes a const SDL_Event* and returns 0 if the event should be removed from
the event queue and 1 otherwise.) the event queue and 1 otherwise.)

8
src/ZE_ZEngine.cpp
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@ -13,7 +13,7 @@
\brief Central source file for ZEngine. \brief Central source file for ZEngine.
Actual implementation of ZEngine singleton class, the core of ZEngine. Actual implementation of ZEngine singleton class, the core of ZEngine.
<br>$Id: ZE_ZEngine.cpp,v 1.42 2003/06/06 18:55:57 cozman Exp $<br> <br>$Id: ZE_ZEngine.cpp,v 1.43 2003/06/09 02:46:22 cozman Exp $<br>
\author James Turk \author James Turk
**/ **/
@ -41,6 +41,7 @@ ZEngine::ZEngine()
mScreen = NULL; mScreen = NULL;
mEventFilter = NULL;
mActive = mQuit = false; mActive = mQuit = false;
mKeyIsPressed = NULL; mKeyIsPressed = NULL;
mMouseX = mMouseY = 0; mMouseX = mMouseY = 0;
@ -499,6 +500,8 @@ void ZEngine::CheckEvents()
SDL_Event event; SDL_Event event;
while(SDL_PollEvent(&event)) while(SDL_PollEvent(&event))
{
if(!mEventFilter || mEventFilter(&event)) //if the filter returns 0 it is removing the event, it will not be processed
{ {
switch(event.type) switch(event.type)
{ {
@ -540,6 +543,7 @@ void ZEngine::CheckEvents()
break; break;
} }
} }
}
mKeyIsPressed = SDL_GetKeyState(NULL); //recommended but not needed (says Sam) mKeyIsPressed = SDL_GetKeyState(NULL); //recommended but not needed (says Sam)
@ -553,7 +557,7 @@ void ZEngine::CheckEvents()
void ZEngine::SetEventFilter(SDL_EventFilter filter) void ZEngine::SetEventFilter(SDL_EventFilter filter)
{ {
SDL_SetEventFilter(filter); mEventFilter = filter;
} }
#ifdef USE_PHYSFS #ifdef USE_PHYSFS