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Paper/patches/server/0084-EntityPathfindEvent.patch

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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/world/entity/ai/navigation/FlyingPathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/FlyingPathNavigation.java
index d3a279a1a14f99aee8dd516552e5c60de92b4969..a3e0c5af4cc9323c02e88e768cbda9e46854aea1 100644
--- a/src/main/java/net/minecraft/world/entity/ai/navigation/FlyingPathNavigation.java
+++ b/src/main/java/net/minecraft/world/entity/ai/navigation/FlyingPathNavigation.java
@@ -40,7 +40,7 @@ public class FlyingPathNavigation extends PathNavigation {
@Override
public Path createPath(Entity entity, int distance) {
- return this.createPath(entity.blockPosition(), distance);
+ return this.createPath(entity.blockPosition(), entity, distance); // Paper - EntityPathfindEvent
}
@Override
diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/GroundPathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/GroundPathNavigation.java
index f1a63db8dac13efcfd73b59c7074f6817cc5dbde..62634bedd97c5be9ecce24ab0cff205715a68da8 100644
--- a/src/main/java/net/minecraft/world/entity/ai/navigation/GroundPathNavigation.java
+++ b/src/main/java/net/minecraft/world/entity/ai/navigation/GroundPathNavigation.java
@@ -41,7 +41,7 @@ public class GroundPathNavigation extends PathNavigation {
}
@Override
- public Path createPath(BlockPos target, int distance) {
+ public Path createPath(BlockPos target, @javax.annotation.Nullable Entity entity, int distance) { // Paper - EntityPathfindEvent
LevelChunk levelChunk = this.level
.getChunkSource()
.getChunkNow(SectionPos.blockToSectionCoord(target.getX()), SectionPos.blockToSectionCoord(target.getZ()));
@@ -56,7 +56,7 @@ public class GroundPathNavigation extends PathNavigation {
}
if (blockPos.getY() > this.level.getMinBuildHeight()) {
- return super.createPath(blockPos.above(), distance);
+ return super.createPath(blockPos.above(), entity, distance); // Paper - EntityPathfindEvent
}
while (blockPos.getY() < this.level.getMaxBuildHeight() && levelChunk.getBlockState(blockPos).isAir()) {
@@ -67,7 +67,7 @@ public class GroundPathNavigation extends PathNavigation {
}
if (!levelChunk.getBlockState(target).isSolid()) {
- return super.createPath(target, distance);
+ return super.createPath(target, entity, distance); // Paper - EntityPathfindEvent
} else {
BlockPos blockPos2 = target.above();
@@ -75,14 +75,14 @@ public class GroundPathNavigation extends PathNavigation {
blockPos2 = blockPos2.above();
}
- return super.createPath(blockPos2, distance);
+ return super.createPath(blockPos2, entity, distance); // Paper - EntityPathfindEvent
}
}
}
@Override
public Path createPath(Entity entity, int distance) {
- return this.createPath(entity.blockPosition(), distance);
+ return this.createPath(entity.blockPosition(), entity, distance); // Paper - EntityPathfindEvent
}
private int getSurfaceY() {
diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
index 92addc1d3e7d0630c5db76e2a00d61b95b1430cc..21bbc98b26b270b3ad6a3b34d6e50dfb796c3d5a 100644
--- a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
+++ b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
@@ -109,7 +109,13 @@ public abstract class PathNavigation {
@Nullable
public Path createPath(BlockPos target, int distance) {
- return this.createPath(ImmutableSet.of(target), 8, false, distance);
+ // Paper start - EntityPathfindEvent
+ return this.createPath(target, null, distance);
+ }
+ @Nullable
+ public Path createPath(BlockPos target, @Nullable Entity entity, int distance) {
+ return this.createPath(ImmutableSet.of(target), entity, 8, false, distance);
+ // Paper end - EntityPathfindEvent
}
@Nullable
@@ -119,7 +125,7 @@ public abstract class PathNavigation {
@Nullable
public Path createPath(Entity entity, int distance) {
- return this.createPath(ImmutableSet.of(entity.blockPosition()), 16, true, distance);
+ return this.createPath(ImmutableSet.of(entity.blockPosition()), entity, 16, true, distance); // Paper - EntityPathfindEvent
}
@Nullable
@@ -129,6 +135,17 @@ public abstract class PathNavigation {
@Nullable
protected Path createPath(Set<BlockPos> positions, int range, boolean useHeadPos, int distance, float followRange) {
+ // Paper start - EntityPathfindEvent
+ return this.createPath(positions, null, range, useHeadPos, distance, followRange);
+ }
+
+ @Nullable
+ protected Path createPath(Set<BlockPos> positions, @Nullable Entity target, int range, boolean useHeadPos, int distance) {
+ return this.createPath(positions, target, range, useHeadPos, distance, (float) this.mob.getAttributeValue(Attributes.FOLLOW_RANGE));
+ }
+
+ @Nullable protected Path createPath(Set<BlockPos> positions, @Nullable Entity target, int range, boolean useHeadPos, int distance, float followRange) {
+ // Paper end - EntityPathfindEvent
if (positions.isEmpty()) {
return null;
} else if (this.mob.getY() < (double)this.level.getMinBuildHeight()) {
@@ -138,6 +155,23 @@ public abstract class PathNavigation {
} else if (this.path != null && !this.path.isDone() && positions.contains(this.targetPos)) {
return this.path;
} else {
+ // Paper start - EntityPathfindEvent
+ boolean copiedSet = false;
+ for (BlockPos possibleTarget : positions) {
+ if (!new com.destroystokyo.paper.event.entity.EntityPathfindEvent(this.mob.getBukkitEntity(),
+ io.papermc.paper.util.MCUtil.toLocation(this.mob.level(), possibleTarget), target == null ? null : target.getBukkitEntity()).callEvent()) {
+ if (!copiedSet) {
+ copiedSet = true;
+ positions = new java.util.HashSet<>(positions);
+ }
+ // note: since we copy the set this remove call is safe, since we're iterating over the old copy
+ positions.remove(possibleTarget);
+ if (positions.isEmpty()) {
+ return null;
+ }
+ }
+ }
+ // Paper end - EntityPathfindEvent
this.level.getProfiler().push("pathfind");
BlockPos blockPos = useHeadPos ? this.mob.blockPosition().above() : this.mob.blockPosition();
int i = (int)(followRange + (float)range);
diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/WallClimberNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/WallClimberNavigation.java
index 1a1bc30b425858d82dbfb84b4a94d7793cab7125..5bbfa43d1e97970f035fcb101c3252c01ffead0d 100644
--- a/src/main/java/net/minecraft/world/entity/ai/navigation/WallClimberNavigation.java
+++ b/src/main/java/net/minecraft/world/entity/ai/navigation/WallClimberNavigation.java
@@ -16,9 +16,9 @@ public class WallClimberNavigation extends GroundPathNavigation {
}
@Override
- public Path createPath(BlockPos target, int distance) {
+ public Path createPath(BlockPos target, @Nullable Entity entity, int distance) { // Paper - EntityPathfindEvent
this.pathToPosition = target;
- return super.createPath(target, distance);
+ return super.createPath(target, entity, distance); // Paper - EntityPathfindEvent
}
@Override
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