Paper/patches/server/0234-SkeletonHorse-Additions.patch

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/SkeletonHorse.java b/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonHorse.java
index b5446b417963850f25c715abe52403c731b6ef01..9c5c7ef3b915afe5fe54144f51e383a83c1eb752 100644
--- a/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonHorse.java
+++ b/src/main/java/net/minecraft/world/entity/animal/horse/SkeletonHorse.java
@@ -23,7 +23,7 @@ public class SkeletonHorse extends AbstractHorse {
     private final SkeletonTrapGoal skeletonTrapGoal = new SkeletonTrapGoal(this);
     private static final int TRAP_MAX_LIFE = 18000;
     private boolean isTrap;
-    private int trapTime;
+    public int trapTime; // Paper private -> public
 
     public SkeletonHorse(EntityType<? extends SkeletonHorse> type, Level world) {
         super(type, world);
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 67afaab789041f49407233ca8a856a3b0131fcf6..1b874f8a72f5b1ac64dd66621b039295f5dc1f18 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
@@ -18,6 +18,7 @@ import net.minecraft.world.level.Level;
 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;
@@ -25,12 +26,13 @@ public class SkeletonTrapGoal extends Goal {
 
     @Override
     public boolean canUse() {
-        return this.horse.level.hasNearbyAlivePlayer(this.horse.getX(), this.horse.getY(), this.horse.getZ(), 10.0D);
+        return !(eligiblePlayers = this.horse.level.findNearbyBukkitPlayers(this.horse.getX(), this.horse.getY(), this.horse.getZ(), 10.0D, false)).isEmpty(); // Paper
     }
 
     @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 0b6e5ee9872a73823219bff7f642375fdc4ec243..b0cafe6e0bdb3f297c13f310fdbe9e3158a6715d 100644
--- a/src/main/java/net/minecraft/world/level/EntityGetter.java
+++ b/src/main/java/net/minecraft/world/level/EntityGetter.java
@@ -90,6 +90,28 @@ 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.getDistanceSquared(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 b52ca4a612e30542ef4029cb1340f616bc4c36e6..90a61d1472afea12637814256f91dbd2f5acb42e 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftSkeletonHorse.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftSkeletonHorse.java
@@ -25,4 +25,26 @@ public class CraftSkeletonHorse extends CraftAbstractHorse implements SkeletonHo
     public Variant getVariant() {
         return Variant.SKELETON_HORSE;
     }
+
+    // Paper start
+    @Override
+    public net.minecraft.world.entity.animal.horse.SkeletonHorse getHandle() {
+        return (net.minecraft.world.entity.animal.horse.SkeletonHorse) super.getHandle();
+    }
+
+    @Override
+    public int getTrapTime() {
+        return getHandle().trapTime;
+    }
+
+    @Override
+    public boolean isTrap() {
+        return getHandle().isTrap();
+    }
+
+    @Override
+    public void setTrap(boolean trap) {
+        getHandle().setTrap(trap);
+    }
+    // Paper end
 }