Paper/patches/server/0265-Mob-Pathfinding-API.patch
Nassim Jahnke 789bc79280
Updated Upstream (Bukkit/CraftBukkit/Spigot) (#6457)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
c9a46ebf #653: Add World#spawn with randomizeData parameter
e49c2e3a Damageable should extend ItemMeta
01ff04f4 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API
ca5b4b1a SPIGOT-6697: Deprecate generateTree with BlockChangeDelegate as it does not handle tiles

CraftBukkit Changes:
7c8bbcbe SPIGOT-6716: Preserve the order of stored enchantments of enchanted books.
18027d02 #914: Add World#spawn with randomizeData parameter
3cad0316 SPIGOT-6714: Don't fire PlayerBucketEvent when empty
8c6d60cf Fix server crash with BlockPopulator when entities are at a negative chunk border
4f6bcc84 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API
78d5b35b SPIGOT-6697: Restore generateTree with BlockChangeDelegate behaviour
15792f0d Rebuild patch
c949675e SPIGOT-6713: Cancelling EntityTransformEvent Causes Deceased Slimes To Not Despawn
a955f15c Fix issues with new ChunkGenerator API
a0a37f41 SPIGOT-6630: Replacing an enchantment on an item creates a conflict error

Spigot Changes:
b166a49b Rebuild patches
3c1fc60a SPIGOT-6693: Composters only take in one item at custom hopper speeds
2021-08-25 09:59:26 +02:00

181 lines
6.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 9 Sep 2018 13:30:00 -0400
Subject: [PATCH] Mob Pathfinding API
Implements Pathfinding API for mobs
diff --git a/src/main/java/com/destroystokyo/paper/entity/PaperPathfinder.java b/src/main/java/com/destroystokyo/paper/entity/PaperPathfinder.java
new file mode 100644
index 0000000000000000000000000000000000000000..8c9f0c6c38627beded373ca29f1989ae3ba6f873
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/entity/PaperPathfinder.java
@@ -0,0 +1,139 @@
+package com.destroystokyo.paper.entity;
+
+import org.apache.commons.lang.Validate;
+import org.bukkit.Location;
+import org.bukkit.craftbukkit.entity.CraftLivingEntity;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Mob;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import net.minecraft.world.level.pathfinder.Node;
+import net.minecraft.world.level.pathfinder.Path;
+import java.util.ArrayList;
+import java.util.List;
+
+public class PaperPathfinder implements com.destroystokyo.paper.entity.Pathfinder {
+
+ private final net.minecraft.world.entity.Mob entity;
+
+ public PaperPathfinder(net.minecraft.world.entity.Mob entity) {
+ this.entity = entity;
+ }
+
+ @Override
+ public Mob getEntity() {
+ return entity.getBukkitMob();
+ }
+
+ @Override
+ public void stopPathfinding() {
+ entity.getNavigation().stop();
+ }
+
+ @Override
+ public boolean hasPath() {
+ return entity.getNavigation().getPath() != null;
+ }
+
+ @Nullable
+ @Override
+ public PathResult getCurrentPath() {
+ Path path = entity.getNavigation().getPath();
+ return path != null ? new PaperPathResult(path) : null;
+ }
+
+ @Nullable
+ @Override
+ public PathResult findPath(Location loc) {
+ Validate.notNull(loc, "Location can not be null");
+ Path path = entity.getNavigation().createPath(loc.getX(), loc.getY(), loc.getZ(), 0);
+ return path != null ? new PaperPathResult(path) : null;
+ }
+
+ @Nullable
+ @Override
+ public PathResult findPath(LivingEntity target) {
+ Validate.notNull(target, "Target can not be null");
+ Path path = entity.getNavigation().createPath(((CraftLivingEntity) target).getHandle(), 0);
+ return path != null ? new PaperPathResult(path) : null;
+ }
+
+ @Override
+ public boolean moveTo(@Nonnull PathResult path, double speed) {
+ Validate.notNull(path, "PathResult can not be null");
+ Path pathEntity = ((PaperPathResult) path).path;
+ return entity.getNavigation().moveTo(pathEntity, speed);
+ }
+
+ @Override
+ public boolean canOpenDoors() {
+ return entity.getNavigation().pathFinder.nodeEvaluator.canOpenDoors();
+ }
+
+ @Override
+ public void setCanOpenDoors(boolean canOpenDoors) {
+ entity.getNavigation().pathFinder.nodeEvaluator.setCanOpenDoors(canOpenDoors);
+ }
+
+ @Override
+ public boolean canPassDoors() {
+ return entity.getNavigation().pathFinder.nodeEvaluator.canPassDoors();
+ }
+
+ @Override
+ public void setCanPassDoors(boolean canPassDoors) {
+ entity.getNavigation().pathFinder.nodeEvaluator.setCanPassDoors(canPassDoors);
+ }
+
+ @Override
+ public boolean canFloat() {
+ return entity.getNavigation().pathFinder.nodeEvaluator.canFloat();
+ }
+
+ @Override
+ public void setCanFloat(boolean canFloat) {
+ entity.getNavigation().pathFinder.nodeEvaluator.setCanFloat(canFloat);
+ }
+
+ public class PaperPathResult implements com.destroystokyo.paper.entity.PaperPathfinder.PathResult {
+
+ private final Path path;
+ PaperPathResult(Path path) {
+ this.path = path;
+ }
+
+ @Nullable
+ @Override
+ public Location getFinalPoint() {
+ Node point = path.getEndNode();
+ return point != null ? toLoc(point) : null;
+ }
+
+ @Override
+ public List<Location> getPoints() {
+ List<Location> points = new ArrayList<>();
+ for (Node point : path.nodes) {
+ points.add(toLoc(point));
+ }
+ return points;
+ }
+
+ @Override
+ public int getNextPointIndex() {
+ return path.getNextNodeIndex();
+ }
+
+ @Nullable
+ @Override
+ public Location getNextPoint() {
+ if (!path.hasNext()) {
+ return null;
+ }
+ return toLoc(path.nodes.get(path.getNextNodeIndex()));
+ }
+ }
+
+ private Location toLoc(Node point) {
+ return new Location(entity.level.getWorld(), point.x, point.y, point.z);
+ }
+}
diff --git a/src/main/java/net/minecraft/world/level/pathfinder/Path.java b/src/main/java/net/minecraft/world/level/pathfinder/Path.java
index 31d4431a60e742e2ca3b1a2abcce33954f599488..f4b6c2bf74884c0b53956788dcfcca784cfafca2 100644
--- a/src/main/java/net/minecraft/world/level/pathfinder/Path.java
+++ b/src/main/java/net/minecraft/world/level/pathfinder/Path.java
@@ -20,6 +20,7 @@ public class Path {
private final BlockPos target;
private final float distToTarget;
private final boolean reached;
+ public boolean hasNext() { return getNextNodeIndex() < this.nodes.size(); } // Paper
public Path(List<Node> nodes, BlockPos target, boolean reachesTarget) {
this.nodes = nodes;
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
index ee84ae1baf959a496a4228edab89b9c0079bc615..140672d03dd2563d2b1fb905d79164ff53cf0b76 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMob.java
@@ -12,8 +12,11 @@ import org.bukkit.loot.LootTable;
public abstract class CraftMob extends CraftLivingEntity implements Mob {
public CraftMob(CraftServer server, net.minecraft.world.entity.Mob entity) {
super(server, entity);
+ paperPathfinder = new com.destroystokyo.paper.entity.PaperPathfinder(entity); // Paper
}
+ private final com.destroystokyo.paper.entity.PaperPathfinder paperPathfinder; // Paper
+ @Override public com.destroystokyo.paper.entity.Pathfinder getPathfinder() { return paperPathfinder; } // Paper
@Override
public void setTarget(LivingEntity target) {
Preconditions.checkState(!this.getHandle().generation, "Cannot set target during world generation");