Add AttributeModifier constructor without EquipmentSlotGroup (#11079)

1 files changed, 115 insertions, 0 deletions

diff --git a/patches/api/0437-Add-PlayerShieldDisableEvent.patch b/patches/api/0437-Add-PlayerShieldDisableEvent.patch
new file mode 100644
index 0000000000..29c7daa0e3
--- /dev/null
+++ b/patches/api/0437-Add-PlayerShieldDisableEvent.patch
@@ -0,0 +1,115 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Cryptite <[email protected]>
+Date: Mon, 1 May 2023 16:22:43 -0500
+Subject: [PATCH] Add PlayerShieldDisableEvent
+
+Called whenever a players shield is disabled. This is mainly caused by
+attacking players or monsters that carry axes.
+
+The event, while similar to the PlayerItemCooldownEvent, offers other
+behaviour and can hence not be implemented as a childtype of said event.
+Specifically, cancelling the event prevents the game events from being
+sent to the player.
+
+Plugins listening to just the PlayerItemCooldownEvent may not want said
+sideeffects, meaning the disable event cannot share a handlerlist with
+the cooldown event.
+
+diff --git a/src/main/java/io/papermc/paper/event/player/PlayerShieldDisableEvent.java b/src/main/java/io/papermc/paper/event/player/PlayerShieldDisableEvent.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..25c13b01c5630a6de30058532458d779763e4e42
+--- /dev/null
++++ b/src/main/java/io/papermc/paper/event/player/PlayerShieldDisableEvent.java
+@@ -0,0 +1,92 @@
++package io.papermc.paper.event.player;
++
++import com.google.common.base.Preconditions;
++import org.bukkit.entity.Entity;
++import org.bukkit.entity.Player;
++import org.bukkit.event.Cancellable;
++import org.bukkit.event.HandlerList;
++import org.bukkit.event.player.PlayerEvent;
++import org.jetbrains.annotations.ApiStatus;
++import org.jetbrains.annotations.NotNull;
++
++/**
++ * Called whenever a players shield is disabled due to an attack from another entity that was capable of disabling the
++ * shield. This, most commonly, may be another player attacking with an axe.
++ * <p>
++ * Notably, this even is distinct from a {@link PlayerItemCooldownEvent} and will fire prior to the item going on
++ * cooldown.
++ * It follows that, if this event is cancelled, no {@link PlayerItemCooldownEvent} is called as the shield is never
++ * disabled in the first place.
++ */
++public class PlayerShieldDisableEvent extends PlayerEvent implements Cancellable {
++
++    private static final HandlerList HANDLER_LIST = new HandlerList();
++
++    private final Entity damager;
++    private int cooldown;
++
++    private boolean cancelled;
++
++    @ApiStatus.Internal
++    public PlayerShieldDisableEvent(@NotNull final Player player, @NotNull final Entity damager, final int cooldown) {
++        super(player);
++        this.damager = damager;
++        this.cooldown = cooldown;
++    }
++
++    /**
++     * Provides the damager that disabled the shield.
++     *
++     * @return the entity instance that damaged the player in a way that caused the shield to be disabled.
++     */
++    @NotNull
++    public Entity getDamager() {
++        return this.damager;
++    }
++
++    /**
++     * Gets the cooldown the disabled shield will be disabled for in ticks.
++     * <p>
++     * Notably, this value is not final as it might be changed by a {@link PlayerItemCooldownEvent} down the line,
++     * as said event is called if this event is not cancelled.
++     *
++     * @return cooldown in ticks
++     */
++    public int getCooldown() {
++        return this.cooldown;
++    }
++
++    /**
++     * Sets the cooldown of the shield in ticks.
++     * <p>
++     * Notably, this value is not final as it might be changed by a {@link PlayerItemCooldownEvent} down the line,
++     * as said event is called if this event is not cancelled.
++     *
++     * @param cooldown cooldown in ticks, has to be a positive number
++     */
++    public void setCooldown(int cooldown) {
++        Preconditions.checkArgument(cooldown >= 0, "The cooldown has to be equal to or greater than 0!");
++        this.cooldown = cooldown;
++    }
++
++    @Override
++    public boolean isCancelled() {
++        return this.cancelled;
++    }
++
++    @Override
++    public void setCancelled(final boolean cancel) {
++        this.cancelled = cancel;
++    }
++
++    @NotNull
++    @Override
++    public HandlerList getHandlers() {
++        return HANDLER_LIST;
++    }
++
++    @NotNull
++    public static HandlerList getHandlerList() {
++        return HANDLER_LIST;
++    }
++}