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/* $Id$ */
/** @file ai_event.cpp Implementation of AIEvent. */
#include "ai_event_types.hpp"
#include <queue>
struct AIEventData {
std::queue<AIEvent *> stack;
};
/* static */ void AIEventController::CreateEventPointer()
{
assert(AIObject::GetEventPointer() == NULL);
AIObject::GetEventPointer() = new AIEventData();
}
/* static */ void AIEventController::FreeEventPointer()
{
AIEventData *data = (AIEventData *)AIObject::GetEventPointer();
/* Free all waiting events (if any) */
while (!data->stack.empty()) {
AIEvent *e = data->stack.front();
data->stack.pop();
e->Release();
}
/* Now kill our data pointer */
delete data;
}
/* static */ bool AIEventController::IsEventWaiting()
{
if (AIObject::GetEventPointer() == NULL) AIEventController::CreateEventPointer();
AIEventData *data = (AIEventData *)AIObject::GetEventPointer();
return !data->stack.empty();
}
/* static */ AIEvent *AIEventController::GetNextEvent()
{
if (AIObject::GetEventPointer() == NULL) AIEventController::CreateEventPointer();
AIEventData *data = (AIEventData *)AIObject::GetEventPointer();
if (data->stack.empty()) return NULL;
AIEvent *e = data->stack.front();
data->stack.pop();
return e;
}
/* static */ void AIEventController::InsertEvent(AIEvent *event)
{
if (AIObject::GetEventPointer() == NULL) AIEventController::CreateEventPointer();
AIEventData *data = (AIEventData *)AIObject::GetEventPointer();
event->AddRef();
data->stack.push(event);
}
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