54 lines
1.5 KiB
Java
54 lines
1.5 KiB
Java
/*
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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 java.lang.reflect.InvocationHandler;
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import java.lang.reflect.Method;
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import java.lang.reflect.Proxy;
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import java.util.LinkedList;
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@SuppressWarnings("unchecked")
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public class Event<T> {
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private final Class<T> type;
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private final LinkedList<T> listeners;
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public Event(Class<T> type) {
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this.type = type;
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this.listeners = new LinkedList<>();
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}
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public void addListener(T listener) {
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this.listeners.add(listener);
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}
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public T make() {
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return (T) Proxy.newProxyInstance(type.getClassLoader(), new Class[]{type},
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new InvocationHandler() {
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@Override
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public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
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for (T listener : listeners) {
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method.invoke(listener, args);
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}
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return null;
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}
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});
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}
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}
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