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| 1 | +/* |
| 2 | + * This file is part of SpongeAPI, licensed under the MIT License (MIT). |
| 3 | + * |
| 4 | + * Copyright (c) SpongePowered <https://www.spongepowered.org> |
| 5 | + * Copyright (c) contributors |
| 6 | + * |
| 7 | + * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | + * of this software and associated documentation files (the "Software"), to deal |
| 9 | + * in the Software without restriction, including without limitation the rights |
| 10 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 11 | + * copies of the Software, and to permit persons to whom the Software is |
| 12 | + * furnished to do so, subject to the following conditions: |
| 13 | + * |
| 14 | + * The above copyright notice and this permission notice shall be included in |
| 15 | + * all copies or substantial portions of the Software. |
| 16 | + * |
| 17 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 20 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 22 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 23 | + * THE SOFTWARE. |
| 24 | + */ |
| 25 | +package org.spongepowered.api.event.block; |
| 26 | + |
| 27 | +import org.spongepowered.api.block.transaction.ScheduleUpdateTicket; |
| 28 | +import org.spongepowered.api.event.Cancellable; |
| 29 | +import org.spongepowered.api.event.GenericEvent; |
| 30 | +import org.spongepowered.api.scheduler.ScheduledUpdate; |
| 31 | +import org.spongepowered.api.world.server.ServerLocation; |
| 32 | + |
| 33 | +import java.util.List; |
| 34 | +import java.util.function.Predicate; |
| 35 | + |
| 36 | +/** |
| 37 | + * Fired when a {@link ScheduledUpdate scheduled block update} |
| 38 | + * is being proposed to the engine. |
| 39 | + */ |
| 40 | +public interface ScheduleBlockUpdateEvent<T extends Object> extends GenericEvent<T>, Cancellable { |
| 41 | + |
| 42 | + /** |
| 43 | + * Gets a list of the {@link ScheduleUpdateTicket}s for this event. |
| 44 | + * If a ticket is requested to be marked as "invalid", |
| 45 | + * {@link ScheduleUpdateTicket#setValid(boolean)} can be used. |
| 46 | + * |
| 47 | + * @return The unmodifiable list of tickets |
| 48 | + */ |
| 49 | + List<ScheduleUpdateTicket<T>> tickets(); |
| 50 | + |
| 51 | + /** |
| 52 | + * Applies the provided {@link Predicate} to the {@link List} of |
| 53 | + * {@link ScheduleUpdateTicket}s from {@link #tickets()} such that |
| 54 | + * any time that {@link Predicate#test(Object)} returns {@code false} |
| 55 | + * on the location of the {@link ScheduleUpdateTicket}, the |
| 56 | + * {@link ScheduleUpdateTicket} is marked as "invalid". |
| 57 | + * |
| 58 | + * <p>{@link ScheduleUpdateTicket#block()} is used to get the {@link ServerLocation}</p> |
| 59 | + * |
| 60 | + * @param predicate The predicate to use for filtering |
| 61 | + */ |
| 62 | + default void filterTargetPositions(final Predicate<ServerLocation> predicate) { |
| 63 | + this.filterTickets(t -> predicate.test(t.block().serverLocation())); |
| 64 | + } |
| 65 | + |
| 66 | + /** |
| 67 | + * Applies the provided {@link Predicate} to the {@link List} of |
| 68 | + * {@link ScheduleUpdateTicket}s from {@link #tickets()} such that |
| 69 | + * any time that {@link Predicate#test(Object)} returns {@code false} |
| 70 | + * on the location of the {@link ScheduleUpdateTicket}, the |
| 71 | + * {@link ScheduleUpdateTicket} is marked as "invalid". |
| 72 | + * |
| 73 | + * @param predicate The predicate to use for filtering |
| 74 | + */ |
| 75 | + default void filterTickets(final Predicate<ScheduleUpdateTicket<T>> predicate) { |
| 76 | + this.tickets().forEach(ticket -> { |
| 77 | + if (!predicate.test(ticket)) { |
| 78 | + ticket.setValid(false); |
| 79 | + } |
| 80 | + }); |
| 81 | + } |
| 82 | +} |
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