/** * This file is part of Skript. * * Skript is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Skript is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Skript. If not, see <http://www.gnu.org/licenses/>. * * * Copyright 2011-2017 Peter Güttinger and contributors */ package ch.njol.skript.expressions; import org.bukkit.event.Event; import org.bukkit.event.server.ServerListPingEvent; import org.eclipse.jdt.annotation.Nullable; import com.destroystokyo.paper.event.server.PaperServerListPingEvent; import ch.njol.skript.ScriptLoader; import ch.njol.skript.Skript; import ch.njol.skript.classes.Changer.ChangeMode; import ch.njol.skript.doc.Description; import ch.njol.skript.doc.Events; import ch.njol.skript.doc.Examples; import ch.njol.skript.doc.Name; import ch.njol.skript.doc.RequiredPlugins; import ch.njol.skript.doc.Since; import ch.njol.skript.lang.Expression; import ch.njol.skript.lang.ExpressionType; import ch.njol.skript.lang.SkriptParser.ParseResult; import ch.njol.skript.lang.util.SimpleExpression; import ch.njol.util.Kleenean; import ch.njol.util.coll.CollectionUtils; @Name("Version String") @Description({"The text to show if the protocol version of the server doesn't match with protocol version of the client. " + "You can check the <a href='#ExprProtocolVersion'>protocol version</a> expression for more information about this.", "This can only be set in a <a href='events.html#server_list_ping'>server list ping</a> event."}) @Examples({"on server list ping:", " set the protocol version to 0 # 13w41a (1.7), so it will show the version string always", " set the version string to \"<light green>Version: <orange>%minecraft version%\""}) @Since("2.3") @RequiredPlugins("Paper 1.12.2 or newer") @Events("server list ping") public class ExprVersionString extends SimpleExpression<String> { static { Skript.registerExpression(ExprVersionString.class, String.class, ExpressionType.SIMPLE, "[the] [(shown|custom)] version [(string|text)]"); } private static final boolean PAPER_EVENT_EXISTS = Skript.classExists("com.destroystokyo.paper.event.server.PaperServerListPingEvent"); @Override public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed, ParseResult parseResult) { if (ScriptLoader.isCurrentEvent(ServerListPingEvent.class)) { Skript.error("The version string expression requires Paper 1.12.2 or newer"); return false; } else if (!(PAPER_EVENT_EXISTS && ScriptLoader.isCurrentEvent(PaperServerListPingEvent.class))) { Skript.error("The version string expression can't be used outside of a server list ping event"); return false; } return true; } @Override @Nullable public String[] get(Event e) { return CollectionUtils.array(((PaperServerListPingEvent) e).getVersion()); } @Override @Nullable public Class<?>[] acceptChange(ChangeMode mode) { if (ScriptLoader.hasDelayBefore.isTrue()) { Skript.error("Can't change the version string anymore after the server list ping event has already passed"); return null; } if (mode == ChangeMode.SET) return CollectionUtils.array(String.class); return null; } @SuppressWarnings("null") @Override public void change(Event e, @Nullable Object[] delta, ChangeMode mode) { ((PaperServerListPingEvent) e).setVersion(((String) delta[0])); } @Override public boolean isSingle() { return true; } @Override public Class<? extends String> getReturnType() { return String.class; } @Override public String toString(@Nullable Event e, boolean debug) { return "the version string"; } }