Paper/Remapped-Spigot-Server-Patches/0250-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/EntitySelector.java b/src/main/java/net/minecraft/world/entity/EntitySelector.java
index a3bad391a719363077740aa810c9412df34b4ae5..e92a8c4c49c452e1f3f0c06398f2a74e3432262f 100644
--- a/src/main/java/net/minecraft/world/entity/EntitySelector.java
+++ b/src/main/java/net/minecraft/world/entity/EntitySelector.java
@@ -25,6 +25,7 @@ public final class EntitySelector {
     public static final Predicate<Entity> ATTACK_ALLOWED = (entity) -> {
         return !(entity instanceof Player) || !entity.isSpectator() && !((Player) entity).isCreative() && entity.level.getDifficulty() != Difficulty.PEACEFUL;
     };
+    public static Predicate<Entity> notSpectator() { return NO_SPECTATORS; } // Paper - OBFHELPER
     public static final Predicate<Entity> NO_SPECTATORS = (entity) -> {
         return !entity.isSpectator();
     };
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 7ef99acaa24525c68b1528bd3232738baab8e1c6..eaab482ae341ddda0754e726357cd845121fb043 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
@@ -26,7 +26,7 @@ public class SkeletonHorse extends AbstractHorse {
 
     private final SkeletonTrapGoal skeletonTrapGoal = new SkeletonTrapGoal(this);
     private boolean isTrap;
-    private int trapTime;
+    private int trapTime; public int getTrapTime() { return this.trapTime; } // Paper - OBFHELPER
 
     public SkeletonHorse(EntityType<? extends SkeletonHorse> type, Level world) {
         super(type, world);
@@ -145,10 +145,12 @@ public class SkeletonHorse extends AbstractHorse {
         return 0.96F;
     }
 
+    public boolean isTrap() { return this.isTrap(); } // Paper - OBFHELPER
     public boolean isTrap() {
         return this.isTrap;
     }
 
+    public void setTrap(boolean trap) { this.setTrap(trap); } // Paper - OBFHELPER
     public void setTrap(boolean trapped) {
         if (trapped != this.isTrap) {
             this.isTrap = trapped;
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 6c2cbaae2afe076c8b7bc53ffa91fe37e423d120..7f5fb28a7deabe1b62ed21e5ed1ea1ecca0d15b8 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
@@ -14,10 +14,14 @@ import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.item.Items;
 import net.minecraft.world.item.enchantment.EnchantmentHelper;
 import net.minecraft.world.level.Level;
+import org.bukkit.entity.HumanEntity;
+
+import java.util.List;
 
 public class SkeletonTrapGoal extends Goal {
 
     private final SkeletonHorse horse;
+    private List<HumanEntity> eligiblePlayers; // Paper
 
     public SkeletonTrapGoal(SkeletonHorse skeletonHorse) {
         this.horse = skeletonHorse;
@@ -25,12 +29,13 @@ 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 66681b9f0e2531d3da25629e44180417b32b4d66..6a5430fe54a5c8ad119a0f3842961825a54d8d7a 100644
--- a/src/main/java/net/minecraft/world/level/EntityGetter.java
+++ b/src/main/java/net/minecraft/world/level/EntityGetter.java
@@ -1,6 +1,9 @@
 package net.minecraft.world.level;
 
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Lists;
+import org.bukkit.entity.HumanEntity;
+
 import java.util.Iterator;
 import java.util.List;
 import java.util.UUID;
@@ -115,6 +118,28 @@ public interface EntityGetter {
         return entityhuman;
     }
 
+    // Paper start
+    default List<HumanEntity> findNearbyBukkitPlayers(double x, double y, double z, double radius, boolean notSpectator) {
+        return findNearbyBukkitPlayers(x, y, z, radius, notSpectator ? EntitySelector.notSpectator() : EntitySelector.canAITarget());
+    }
+
+    default List<HumanEntity> findNearbyBukkitPlayers(double x, double y, double z, double radius, @Nullable Predicate<Entity> predicate) {
+        ImmutableList.Builder<HumanEntity> builder = 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..7f984639fc2697cad9d0393467b0cb896d1e55a4 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().getTrapTime();
+    }
+
+    @Override
+    public boolean isTrap() {
+        return getHandle().isTrap();
+    }
+
+    @Override
+    public void setTrap(boolean trap) {
+        getHandle().setTrap(trap);
+    }
+    // Paper end
 }