Paper/Spigot-Server-Patches/0076-EntityPathfindEvent.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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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 3fdeda0cea0b1df2d1f1051f5654e06bcbccd410..abf450917e605972d84cb603b966feb013ae0002 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
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public PathEntity a(Entity entity, int i) {
- return this.a(new BlockPosition(entity), i);
+ return this.a(new BlockPosition(entity), entity, i); // Paper - Forward target entity
}
private int t() {
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diff --git a/src/main/java/net/minecraft/server/NavigationAbstract.java b/src/main/java/net/minecraft/server/NavigationAbstract.java
index a600ee7654aa0898c17c8a433580d92ce447320c..5e7158ba1053ae77fc5c5811d49214e877a5fe30 100644
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--- a/src/main/java/net/minecraft/server/NavigationAbstract.java
+++ b/src/main/java/net/minecraft/server/NavigationAbstract.java
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@@ -8,7 +8,7 @@ import javax.annotation.Nullable;
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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;
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@@ -91,16 +91,26 @@ public abstract class NavigationAbstract {
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@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);
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+ // Paper end
}
@Nullable
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public PathEntity a(Entity entity, int i) {
- return this.a(ImmutableSet.of(new BlockPosition(entity)), 16, true, i);
+ return this.a(ImmutableSet.of(new BlockPosition(entity)), entity, 16, true, i); // Paper
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}
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@Nullable
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+ // 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()) {
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return null;
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} else if (this.a.locY() < 0.0D) {
@@ -110,6 +120,23 @@ public abstract class NavigationAbstract {
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} else if (this.c != null && !this.c.b() && set.contains(this.q)) {
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return this.c;
} else {
+ // Paper start - Pathfind event
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+ 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;
+ }
+ }
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+ }
+ // Paper end
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this.b.getMethodProfiler().enter("pathfind");
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float f = (float) this.p.getValue();
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BlockPosition blockposition = flag ? (new BlockPosition(this.a)).up() : new BlockPosition(this.a);
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diff --git a/src/main/java/net/minecraft/server/NavigationFlying.java b/src/main/java/net/minecraft/server/NavigationFlying.java
index 5b057e96db5e12bace186f449ae5658b25123000..f16c6d1faac21478cc9b828c478f3f38a90615fc 100644
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--- 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
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public PathEntity a(Entity entity, int i) {
- return this.a(new BlockPosition(entity), i);
+ return this.a(new BlockPosition(entity), entity, i); // Paper - Forward target entity
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}
@Override