PaperMC/Spigot-Server-Patches/0075-EntityPathfindEvent.patch
Riley Park 4e958e229f
We're going on an Adventure! (#4842)
Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>
Co-authored-by: zml <zml@stellardrift.ca>
Co-authored-by: Mariell Hoversholm <proximyst@proximyst.com>
2021-02-21 20:45:33 +01:00

99 lines
4.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 28 Mar 2016 21:22:26 -0400
Subject: [PATCH] EntityPathfindEvent
Fires when an Entity decides to start moving to a location.
diff --git a/src/main/java/net/minecraft/server/Navigation.java b/src/main/java/net/minecraft/server/Navigation.java
index 95f916d5a08a7781278080c4f4abd4e152a945b5..da15615a19474d5db9bd46c3d772f467ec58b133 100644
--- a/src/main/java/net/minecraft/server/Navigation.java
+++ b/src/main/java/net/minecraft/server/Navigation.java
@@ -60,7 +60,7 @@ public class Navigation extends NavigationAbstract {
@Override
public PathEntity a(Entity entity, int i) {
- return this.a(entity.getChunkCoordinates(), i);
+ return this.a(entity.getChunkCoordinates(), entity, i); // Paper - Forward target entity
}
private int u() {
diff --git a/src/main/java/net/minecraft/server/NavigationAbstract.java b/src/main/java/net/minecraft/server/NavigationAbstract.java
index edcc8af6ee36b937f61d3e52cb001b24fa16f690..48cf95db7226b23fc688aba47aea3b378faec14c 100644
--- a/src/main/java/net/minecraft/server/NavigationAbstract.java
+++ b/src/main/java/net/minecraft/server/NavigationAbstract.java
@@ -8,7 +8,7 @@ import javax.annotation.Nullable;
public abstract class NavigationAbstract {
- protected final EntityInsentient a;
+ protected final EntityInsentient a; public Entity getEntity() { return a; } // Paper - OBFHELPER
protected final World b;
@Nullable
protected PathEntity c;
@@ -95,16 +95,26 @@ public abstract class NavigationAbstract {
@Nullable
public PathEntity a(BlockPosition blockposition, int i) {
- return this.a(ImmutableSet.of(blockposition), 8, false, i);
+ // Paper start - add target parameter
+ return this.a(blockposition, null, i);
+ }
+ @Nullable public PathEntity a(BlockPosition blockposition, Entity target, int i) {
+ return this.a(ImmutableSet.of(blockposition), target, 8, false, i);
+ // Paper end
}
@Nullable
public PathEntity a(Entity entity, int i) {
- return this.a(ImmutableSet.of(entity.getChunkCoordinates()), 16, true, i);
+ return this.a(ImmutableSet.of(entity.getChunkCoordinates()), entity, 16, true, i); // Paper
}
@Nullable
+ // Paper start - Add target
protected PathEntity a(Set<BlockPosition> set, int i, boolean flag, int j) {
+ return this.a(set, null, i, flag, j);
+ }
+ @Nullable protected PathEntity a(Set<BlockPosition> set, Entity target, int i, boolean flag, int j) {
+ // Paper end
if (set.isEmpty()) {
return null;
} else if (this.a.locY() < 0.0D) {
@@ -114,6 +124,23 @@ public abstract class NavigationAbstract {
} else if (this.c != null && !this.c.c() && set.contains(this.p)) {
return this.c;
} else {
+ // Paper start - Pathfind event
+ boolean copiedSet = false;
+ for (BlockPosition possibleTarget : set) {
+ if (!new com.destroystokyo.paper.event.entity.EntityPathfindEvent(getEntity().getBukkitEntity(),
+ MCUtil.toLocation(getEntity().world, possibleTarget), target == null ? null : target.getBukkitEntity()).callEvent()) {
+ if (!copiedSet) {
+ copiedSet = true;
+ set = new java.util.HashSet<>(set);
+ }
+ // note: since we copy the set this remove call is safe, since we're iterating over the old copy
+ set.remove(possibleTarget);
+ if (set.isEmpty()) {
+ return null;
+ }
+ }
+ }
+ // Paper end
this.b.getMethodProfiler().enter("pathfind");
float f = (float) this.a.b(GenericAttributes.FOLLOW_RANGE);
BlockPosition blockposition = flag ? this.a.getChunkCoordinates().up() : this.a.getChunkCoordinates();
diff --git a/src/main/java/net/minecraft/server/NavigationFlying.java b/src/main/java/net/minecraft/server/NavigationFlying.java
index feed11b62a4df63c1782e7124a3f006d7a8019a3..013bdfe5540ae594a7f9cbe3ef8dc54dfb25afd4 100644
--- a/src/main/java/net/minecraft/server/NavigationFlying.java
+++ b/src/main/java/net/minecraft/server/NavigationFlying.java
@@ -25,7 +25,7 @@ public class NavigationFlying extends NavigationAbstract {
@Override
public PathEntity a(Entity entity, int i) {
- return this.a(entity.getChunkCoordinates(), i);
+ return this.a(entity.getChunkCoordinates(), entity, i); // Paper - Forward target entity
}
@Override