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b68b282439
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Warning: this commit contains more mapping changes from upstream, As always, ensure that you have working backups and test this build before deployment; Developers working on paper will, yet again, need to delete their work/Minecraft/1.13.2 folder Bukkit Changes: 7fca5fd4 SPIGOT-4558: Preserve user order in the face of copied defaults in configurations 15c9b1eb Ignore spurious slot IDs sent by client, e.g. in enchanting tables 5d2a10c5 SPIGOT-3747: Add API for force loaded chunks d6dd2bb3 SPIGOT-3538: Add getHitBlockFace for ProjectileHitEvent 771db4aa SPIGOT-794: Call EntityPlaceEvent for Minecart placement 55462509 Add InventoryView#getSlotType 2f3ce5b6 Remove EntityTransformEvent and CustomItemTagContainer from draft API f04ad7b6 Make ProjectileLaunchEvent extend EntitySpawnEvent ccb85808 Define EntitySpawnEvent b8cc3ebe Add PlayerItemDamageEvent 184a495d Ease ClassLoader Deadlocks Where Possible 11ac4728 Expand Boolean Prompt Values in Conversation API aae62d51 Added getAllSessionData() to the Conversation API. 9290ff91 Add InventoryView#getInventory API 995e530f Add API to get / set base arrow damage CraftBukkit Changes:c4a67eed
SPIGOT-4556: Fix plugins closing inventory during drop events5be2ddcb
Replace version constants with methods to prevent compiler inlininga5b9c7b3
Use API method to create offset command completions2bc7d1df
SPIGOT-3747: Add API for force loaded chunksa408f375
SPIGOT-3538: Add getHitBlockFace for ProjectileHitEventb54b9409
SPIGOT-2864: Make Arrow / Item setTicksLived behave like FallingBlock79ded7a8
SPIGOT-1811: Death message not shown on respawn screenb4a4f15d
SPIGOT-943: InventoryCloseEvent called on death regardless of open inventory0afed592
SPIGOT-794: Call EntityPlaceEvent for Minecart placement2b2d084a
Add InventoryView#getSlotType01a9959a
Do not use deprecated ItemSpawnEvent constructor9642498d
SPIGOT-4547: Call EntitySpawnEvent as general spawn fallback event963f4a5f
Add PlayerItemDamageEvent63db0445
Add API to get / set base arrow damage531c25d7
Add CraftMagicNumbers.MAPPINGS_VERSION for use by NMS pluginsd05c8b14
Mappings Updatebd36e200
SPIGOT-4551: Ignore invalid attribute modifier slots Spigot Changes: 518206a1 Remove redundant trove depend 1959ad21 MC-11211,SPIGOT-4552: Fix placing double slabs at y = 255 29ab5e43 SPIGOT-3661: Allow arguments in restart-script 7cc46316 SPIGOT-852: Growth modifiers for beetroots, potatoes, carrots 82e117e1 Squelch "fatal: Resolve operation not in progress" message 0a1a68e7 Mappings Update & Patch Rebuild
209 lines
7.5 KiB
Diff
209 lines
7.5 KiB
Diff
From e56639fa55ad0e1d2a489c71c999dfba9aafda53 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 9 Sep 2018 12:39:06 -0400
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Subject: [PATCH] Mob Pathfinding API
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Adds an API to allow plugins to instruct a Mob to Pathfind to a Location or Entity
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This does not do anything to stop other AI rules from changing the location, so
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it is still up to the plugin to control that or override after another goal changed
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the location.
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You can use EntityPathfindEvent to cancel new pathfinds from overriding your current.
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diff --git a/src/main/java/com/destroystokyo/paper/entity/Pathfinder.java b/src/main/java/com/destroystokyo/paper/entity/Pathfinder.java
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new file mode 100644
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index 00000000..d6953b39
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--- /dev/null
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+++ b/src/main/java/com/destroystokyo/paper/entity/Pathfinder.java
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@@ -0,0 +1,167 @@
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+package com.destroystokyo.paper.entity;
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+
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+import org.bukkit.Location;
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+import org.bukkit.entity.LivingEntity;
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+import org.bukkit.entity.Mob;
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+
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+import javax.annotation.Nonnull;
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+import javax.annotation.Nullable;
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+import java.util.List;
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+
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+/**
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+ * Handles pathfinding operations for an Entity
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+ */
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+public interface Pathfinder {
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+
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+ /**
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+ *
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+ * @return The entity that is controlled by this pathfinder
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+ */
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+ Mob getEntity();
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+
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+ /**
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+ * Instructs the Entity to stop trying to navigate to its current desired location
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+ */
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+ void stopPathfinding();
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+
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+ /**
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+ * If the entity is currently trying to navigate to a destination, this will return true
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+ * @return true if the entity is navigating to a destination
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+ */
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+ boolean hasPath();
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+
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+ /**
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+ * @return The location the entity is trying to navigate to, or null if there is no destination
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+ */
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+ @Nullable PathResult getCurrentPath();
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+
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+ /**
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+ * Calculates a destination for the Entity to navigate to, but does not set it
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+ * as the current target. Useful for calculating what would happen before setting it.
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+ * @param loc Location to navigate to
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+ * @return The closest Location the Entity can get to for this navigation, or null if no path could be calculated
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+ */
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+ @Nullable PathResult findPath(Location loc);
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+
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+ /**
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+ * Calculates a destination for the Entity to navigate to to reach the target entity,
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+ * but does not set it as the current target.
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+ * Useful for calculating what would happen before setting it.
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+ *
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+ * The behavior of this PathResult is subject to the games pathfinding rules, and may
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+ * result in the pathfinding automatically updating to follow the target Entity.
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+ *
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+ * However, this behavior is not guaranteed, and is subject to the games behavior.
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+ *
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+ * @param target the Entity to navigate to
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+ * @return The closest Location the Entity can get to for this navigation, or null if no path could be calculated
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+ */
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+ @Nullable PathResult findPath(LivingEntity target);
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+
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+ /**
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+ * Calculates a destination for the Entity to navigate to, and sets it with default speed
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+ * as the current target.
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+ * @param loc Location to navigate to
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+ * @return If the pathfinding was successfully started
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+ */
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+ default boolean moveTo(@Nonnull Location loc) {
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+ return moveTo(loc, 1);
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+ }
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+
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+ /**
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+ * Calculates a destination for the Entity to navigate to, with desired speed
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+ * as the current target.
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+ * @param loc Location to navigate to
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+ * @param speed Speed multiplier to navigate at, where 1 is 'normal'
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+ * @return If the pathfinding was successfully started
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+ */
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+ default boolean moveTo(@Nonnull Location loc, double speed) {
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+ PathResult path = findPath(loc);
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+ return path != null && moveTo(path, speed);
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+ }
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+
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+ /**
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+ * Calculates a destination for the Entity to navigate to to reach the target entity,
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+ * and sets it with default speed.
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+ *
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+ * The behavior of this PathResult is subject to the games pathfinding rules, and may
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+ * result in the pathfinding automatically updating to follow the target Entity.
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+ *
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+ * However, this behavior is not guaranteed, and is subject to the games behavior.
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+ *
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+ * @param target the Entity to navigate to
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+ * @return If the pathfinding was successfully started
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+ */
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+ default boolean moveTo(@Nonnull LivingEntity target) {
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+ return moveTo(target, 1);
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+ }
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+
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+ /**
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+ * Calculates a destination for the Entity to navigate to to reach the target entity,
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+ * and sets it with specified speed.
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+ *
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+ * The behavior of this PathResult is subject to the games pathfinding rules, and may
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+ * result in the pathfinding automatically updating to follow the target Entity.
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+ *
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+ * However, this behavior is not guaranteed, and is subject to the games behavior.
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+ *
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+ * @param target the Entity to navigate to
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+ * @param speed Speed multiplier to navigate at, where 1 is 'normal'
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+ * @return If the pathfinding was successfully started
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+ */
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+ default boolean moveTo(@Nonnull LivingEntity target, double speed) {
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+ PathResult path = findPath(target);
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+ return path != null && moveTo(path, speed);
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+ }
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+
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+ /**
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+ * Takes the result of a previous pathfinding calculation and sets it
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+ * as the active pathfinding with default speed.
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+ *
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+ * @param path The Path to start following
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+ * @return If the pathfinding was successfully started
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+ */
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+ default boolean moveTo(@Nonnull PathResult path) {
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+ return moveTo(path, 1);
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+ }
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+
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+ /**
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+ * Takes the result of a previous pathfinding calculation and sets it
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+ * as the active pathfinding,
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+ *
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+ * @param path The Path to start following
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+ * @param speed Speed multiplier to navigate at, where 1 is 'normal'
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+ * @return If the pathfinding was successfully started
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+ */
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+ boolean moveTo(@Nonnull PathResult path, double speed);
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+
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+ /**
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+ * Represents the result of a pathfinding calculation
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+ */
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+ interface PathResult {
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+
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+ /**
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+ * All currently calculated points to follow along the path to reach the destination location
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+ *
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+ * Will return points the entity has already moved past, see {@link #getNextPointIndex()}
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+ * @return List of points
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+ */
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+ List<Location> getPoints();
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+
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+ /**
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+ * @return Returns the index of the current point along the points returned in {@link #getPoints()} the entity
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+ * is trying to reach, or null if we are done with this pathfinding.
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+ */
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+ int getNextPointIndex();
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+
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+ /**
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+ * @return The next location in the path points the entity is trying to reach, or null if there is no next point
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+ */
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+ @Nullable Location getNextPoint();
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+
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+ /**
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+ * @return The closest point the path can get to the target location
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+ */
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+ @Nullable Location getFinalPoint();
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+ }
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+}
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diff --git a/src/main/java/org/bukkit/entity/Mob.java b/src/main/java/org/bukkit/entity/Mob.java
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index d029d34e..48eddcd3 100644
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--- a/src/main/java/org/bukkit/entity/Mob.java
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+++ b/src/main/java/org/bukkit/entity/Mob.java
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@@ -7,6 +7,14 @@ import org.bukkit.loot.Lootable;
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*/
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public interface Mob extends LivingEntity, Lootable {
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+ // Paper start
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+ /**
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+ * Enables access to control the pathing of an Entity
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+ * @return Pathfinding Manager for this entity
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+ */
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+ com.destroystokyo.paper.entity.Pathfinder getPathfinder();
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+ // Paper end
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+
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/**
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* Instructs this Mob to set the specified LivingEntity as its target.
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* <p>
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--
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2.20.1
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