blob: b2a94bd85ffab747ceb0343e4b9baab5dab946bd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
#include "EventManager.h"
namespace crepe {
template <typename EventType>
subscription_t EventManager::subscribe(const EventHandler<EventType> & callback, int channel) {
subscription_counter++;
std::type_index event_type = typeid(EventType);
std::unique_ptr<EventHandlerWrapper<EventType>> handler
= std::make_unique<EventHandlerWrapper<EventType>>(callback);
std::vector<CallbackEntry> & handlers = this->subscribers[event_type];
handlers.emplace_back(CallbackEntry{
.callback = std::move(handler), .channel = channel, .id = subscription_counter});
return subscription_counter;
}
template <typename EventType>
void EventManager::queue_event(const EventType & event, int channel) {
static_assert(std::is_base_of<Event, EventType>::value,
"EventType must derive from Event");
std::type_index event_type = typeid(EventType);
auto event_ptr = std::make_unique<EventType>(event);
this->events_queue.push_back(
QueueEntry{.event = std::move(event_ptr), .channel = channel, .type = event_type});
}
template <typename EventType>
void EventManager::trigger_event(const EventType & event, int channel) {
std::type_index event_type = typeid(EventType);
auto handlers_it = this->subscribers.find(event_type);
if (handlers_it != this->subscribers.end()) {
const std::vector<CallbackEntry> & handlers = handlers_it->second;
for (const CallbackEntry & handler : handlers) {
if (handler.channel != channel && handler.channel != CHANNEL_ALL) {
continue;
}
if (handler.callback->exec(event)) {
break;
}
}
}
}
} // namespace crepe
|