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Paper/Spigot-Server-Patches/0284-Add-SentientNPC-Interface-to-Entities.patch

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From ac0823ffa12e8a2db3761180150b1eb95ce4f15b Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 1 Jul 2018 22:06:29 -0400
Subject: [PATCH] Add SentientNPC Interface to Entities
Used to determine ACTUAL Living NPC's. Spigot mistakenly inversed the conditions for LivingEntity, and
used LivingEntity for Insentient Entities, and named the actual EntityLiving class EntityInsentient.
This should of all been inversed on the implementation side. To make matters worse, Spigot never
exposed the differentiator that there are entities with AI that are not sentient/alive such as
Armor stands and Players are the only things that do not implement the REAL EntityLiving class (named Insentient internally)
This interface lets you identify NPC entities capable of sentience, and able to move about and react to the world.
diff --git a/src/main/java/com/destroystokyo/paper/entity/CraftSentientNPC.java b/src/main/java/com/destroystokyo/paper/entity/CraftSentientNPC.java
new file mode 100644
index 000000000..a60ba1349
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/entity/CraftSentientNPC.java
@@ -0,0 +1,25 @@
+package com.destroystokyo.paper.entity;
+
+import net.minecraft.server.EntityInsentient;
+import org.bukkit.craftbukkit.entity.CraftLivingEntity;
+import org.bukkit.entity.LivingEntity;
+
+public interface CraftSentientNPC <T extends EntityInsentient> extends SentientNPC {
+ T getHandle();
+
+ default public void setTarget(LivingEntity target) {
+ T entity = getHandle();
+ if (target == null) {
+ entity.setGoalTarget(null, null, false);
+ } else if (target instanceof CraftLivingEntity) {
+ entity.setGoalTarget(((CraftLivingEntity) target).getHandle(), null, false);
+ }
+ }
+
+ default public LivingEntity getTarget() {
+ if (getHandle().getGoalTarget() == null) return null;
+
+ return (CraftLivingEntity) getHandle().getGoalTarget().getBukkitEntity();
+ }
+
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftAmbient.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftAmbient.java
index 086980e76..ccce080ab 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftAmbient.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftAmbient.java
@@ -1,11 +1,12 @@
package org.bukkit.craftbukkit.entity;
+import com.destroystokyo.paper.entity.CraftSentientNPC;
import net.minecraft.server.EntityAmbient;
import org.bukkit.craftbukkit.CraftServer;
import org.bukkit.entity.Ambient;
import org.bukkit.entity.EntityType;
-public class CraftAmbient extends CraftLivingEntity implements Ambient {
+public class CraftAmbient extends CraftLivingEntity implements Ambient, CraftSentientNPC { // Paper
public CraftAmbient(CraftServer server, EntityAmbient entity) {
super(server, entity);
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftComplexLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftComplexLivingEntity.java
index cc115cc36..3a4e6f0c7 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftComplexLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftComplexLivingEntity.java
@@ -1,17 +1,19 @@
package org.bukkit.craftbukkit.entity;
+import com.destroystokyo.paper.entity.CraftSentientNPC;
+import net.minecraft.server.EntityInsentient;
import net.minecraft.server.EntityLiving;
import org.bukkit.craftbukkit.CraftServer;
import org.bukkit.entity.ComplexLivingEntity;
-public abstract class CraftComplexLivingEntity extends CraftLivingEntity implements ComplexLivingEntity {
+public abstract class CraftComplexLivingEntity extends CraftLivingEntity implements ComplexLivingEntity, CraftSentientNPC { // Paper
public CraftComplexLivingEntity(CraftServer server, EntityLiving entity) {
super(server, entity);
}
@Override
- public EntityLiving getHandle() {
- return (EntityLiving) entity;
+ public EntityInsentient getHandle() { // Paper
+ return (EntityInsentient) entity; // Paper
}
@Override
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftCreature.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftCreature.java
index 09d42141f..30004e5e8 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftCreature.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftCreature.java
@@ -1,16 +1,18 @@
package org.bukkit.craftbukkit.entity;
+import com.destroystokyo.paper.entity.CraftSentientNPC;
import net.minecraft.server.EntityCreature;
import org.bukkit.craftbukkit.CraftServer;
import org.bukkit.entity.Creature;
import org.bukkit.entity.LivingEntity;
-public class CraftCreature extends CraftLivingEntity implements Creature {
+public class CraftCreature extends CraftLivingEntity implements Creature, CraftSentientNPC { // Paper
public CraftCreature(CraftServer server, EntityCreature entity) {
super(server, entity);
}
- public void setTarget(LivingEntity target) {
+ // Paper start - move down to SentientNPC
+ /*public void setTarget(LivingEntity target) {
EntityCreature entity = getHandle();
if (target == null) {
entity.setGoalTarget(null, null, false);
@@ -23,7 +25,8 @@ public class CraftCreature extends CraftLivingEntity implements Creature {
if (getHandle().getGoalTarget() == null) return null;
return (CraftLivingEntity) getHandle().getGoalTarget().getBukkitEntity();
- }
+ }*/
+ // Paper end
@Override
public EntityCreature getHandle() {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftFlying.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftFlying.java
index f374c7b88..9e6f523bf 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftFlying.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftFlying.java
@@ -1,10 +1,11 @@
package org.bukkit.craftbukkit.entity;
+import com.destroystokyo.paper.entity.CraftSentientNPC;
import net.minecraft.server.EntityFlying;
import org.bukkit.craftbukkit.CraftServer;
import org.bukkit.entity.Flying;
-public class CraftFlying extends CraftLivingEntity implements Flying {
+public class CraftFlying extends CraftLivingEntity implements Flying, CraftSentientNPC { // Paper
public CraftFlying(CraftServer server, EntityFlying entity) {
super(server, entity);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftSlime.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftSlime.java
index 6bf30c834..3768b9573 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftSlime.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftSlime.java
@@ -1,5 +1,6 @@
package org.bukkit.craftbukkit.entity;
+import com.destroystokyo.paper.entity.CraftSentientNPC;
import net.minecraft.server.EntitySlime;
import org.bukkit.craftbukkit.CraftServer;
@@ -7,7 +8,7 @@ import org.bukkit.entity.EntityType;
import org.bukkit.entity.LivingEntity;
import org.bukkit.entity.Slime;
-public class CraftSlime extends CraftLivingEntity implements Slime {
+public class CraftSlime extends CraftLivingEntity implements Slime, CraftSentientNPC { // Paper
public CraftSlime(CraftServer server, EntitySlime entity) {
super(server, entity);
--
2.18.0
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