From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Fri, 27 Jul 2018 22:36:31 -0500
Subject: [PATCH] SkeletonHorse Additions


diff --git a/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonTrapGoal.java b/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonTrapGoal.java
index f3a02925833733ae50d706ffc681dd05344a7687..69714e0558419b1577c95cf8e75c1d67177ccb89 100644
--- a/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonTrapGoal.java
+++ b/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonTrapGoal.java
@@ -20,6 +20,7 @@ import net.minecraft.world.item.enchantment.ItemEnchantments;
 public class SkeletonTrapGoal extends Goal {
 
     private final SkeletonHorse horse;
+    private java.util.List<org.bukkit.entity.HumanEntity> eligiblePlayers; // Paper
 
     public SkeletonTrapGoal(SkeletonHorse skeletonHorse) {
         this.horse = skeletonHorse;
@@ -27,12 +28,13 @@ public class SkeletonTrapGoal extends Goal {
 
     @Override
     public boolean canUse() {
-        return this.horse.level().hasNearbyAlivePlayerThatAffectsSpawning(this.horse.getX(), this.horse.getY(), this.horse.getZ(), 10.0D); // Paper - Affects Spawning API
+        return !(eligiblePlayers = this.horse.level().findNearbyBukkitPlayers(this.horse.getX(), this.horse.getY(), this.horse.getZ(), 10.0D, net.minecraft.world.entity.EntitySelector.PLAYER_AFFECTS_SPAWNING)).isEmpty(); // Paper - Affects Spawning API & SkeletonHorseTrapEvent
     }
 
     @Override
     public void tick() {
         ServerLevel worldserver = (ServerLevel) this.horse.level();
+        if (!new com.destroystokyo.paper.event.entity.SkeletonHorseTrapEvent((org.bukkit.entity.SkeletonHorse) this.horse.getBukkitEntity(), eligiblePlayers).callEvent()) return; // Paper
         DifficultyInstance difficultydamagescaler = worldserver.getCurrentDifficultyAt(this.horse.blockPosition());
 
         this.horse.setTrap(false);
diff --git a/src/main/java/net/minecraft/world/level/EntityGetter.java b/src/main/java/net/minecraft/world/level/EntityGetter.java
index 77ae7882a08441d9a80b50492be5e48487a2fdab..d465fb01af4c8610f83ecb9c68b83127cf7e95ae 100644
--- a/src/main/java/net/minecraft/world/level/EntityGetter.java
+++ b/src/main/java/net/minecraft/world/level/EntityGetter.java
@@ -97,6 +97,28 @@ public interface EntityGetter {
         return player;
     }
 
+    // Paper start
+    default List<org.bukkit.entity.HumanEntity> findNearbyBukkitPlayers(double x, double y, double z, double radius, boolean notSpectator) {
+        return findNearbyBukkitPlayers(x, y, z, radius, notSpectator ? EntitySelector.NO_SPECTATORS : net.minecraft.world.entity.EntitySelector.NO_CREATIVE_OR_SPECTATOR);
+    }
+
+    default List<org.bukkit.entity.HumanEntity> findNearbyBukkitPlayers(double x, double y, double z, double radius, @Nullable Predicate<Entity> predicate) {
+        com.google.common.collect.ImmutableList.Builder<org.bukkit.entity.HumanEntity> builder = com.google.common.collect.ImmutableList.builder();
+
+        for (Player human : this.players()) {
+            if (predicate == null || predicate.test(human)) {
+                double distanceSquared = human.distanceToSqr(x, y, z);
+
+                if (radius < 0.0D || distanceSquared < radius * radius) {
+                    builder.add(human.getBukkitEntity());
+                }
+            }
+        }
+
+        return builder.build();
+    }
+    // Paper end
+
     @Nullable
     default Player getNearestPlayer(Entity entity, double maxDistance) {
         return this.getNearestPlayer(entity.getX(), entity.getY(), entity.getZ(), maxDistance, false);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftSkeletonHorse.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftSkeletonHorse.java
index 248e4febbe8fe225920b6504d2c29d295cf09ec6..fbb47491dcc75f8247dee9f123f946f99ef1467f 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftSkeletonHorse.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftSkeletonHorse.java
@@ -44,4 +44,16 @@ public class CraftSkeletonHorse extends CraftAbstractHorse implements SkeletonHo
     public void setTrapTime(int trapTime) {
         this.getHandle().trapTime = trapTime;
     }
+
+    // Paper start - replaced by above methods
+    @Override
+    public boolean isTrap() {
+        return getHandle().isTrap();
+    }
+
+    @Override
+    public void setTrap(boolean trap) {
+        getHandle().setTrap(trap);
+    }
+    // Paper end
 }