eventbus
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src/yugecin/opsudance/core/events/EventBus.java
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src/yugecin/opsudance/core/events/EventBus.java
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/*
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* opsu!dance - fork of opsu! with cursordance auto
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* Copyright (C) 2017 yugecin
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*
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* opsu!dance is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* opsu!dance is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with opsu!dance. If not, see <http://www.gnu.org/licenses/>.
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*/
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package yugecin.opsudance.core.events;
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import com.google.inject.Inject;
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import java.util.*;
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@SuppressWarnings("unchecked")
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public class EventBus {
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private final List<Subscriber> subscribers;
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@Inject
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public EventBus() {
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subscribers = new LinkedList<>();
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}
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public <T> void subscribe(Class<T> eventType, EventListener<T> eventListener) {
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subscribers.add(new Subscriber<>(eventType, eventListener));
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}
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public void post(Object event) {
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for (Subscriber s : subscribers) {
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if (s.eventType.isInstance(event)) {
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s.listener.onEvent(event);
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}
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}
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}
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private class Subscriber<T> {
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private final Class<T> eventType;
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private final EventListener<T> listener;
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private Subscriber(Class<T> eventType, EventListener<T> listener) {
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this.eventType = eventType;
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this.listener = listener;
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}
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}
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}
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24
src/yugecin/opsudance/core/events/EventListener.java
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src/yugecin/opsudance/core/events/EventListener.java
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/*
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* opsu!dance - fork of opsu! with cursordance auto
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* Copyright (C) 2017 yugecin
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*
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* opsu!dance is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* opsu!dance is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with opsu!dance. If not, see <http://www.gnu.org/licenses/>.
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*/
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package yugecin.opsudance.core.events;
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public interface EventListener<T> {
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void onEvent(T event);
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}
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