Paper/Spigot-Server-Patches/0161-Activation-Range-Improvements.patch

From 5c8d5740834de57a88322d4bdb1a0fb33831dc29 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 27 Dec 2016 22:38:06 -0500
Subject: [PATCH] Activation Range Improvements

Fixes and adds new Immunities to improve gameplay behavior

Adds water Mobs to activation range config and nerfs fish

diff --git a/src/main/java/net/minecraft/server/BlockPosition.java b/src/main/java/net/minecraft/server/BlockPosition.java
index f4ed98d2d9..1dfd71df0a 100644
--- a/src/main/java/net/minecraft/server/BlockPosition.java
+++ b/src/main/java/net/minecraft/server/BlockPosition.java
@@ -326,6 +326,7 @@ public class BlockPosition extends BaseBlockPosition {
             this.c = i;
         }
 
+        public BlockPosition toBlockPosition() { return h(); } // Paper - OBFHELPER
         public BlockPosition h() {
             return new BlockPosition(this);
         }
diff --git a/src/main/java/net/minecraft/server/EntityCreature.java b/src/main/java/net/minecraft/server/EntityCreature.java
index a5c147b989..9e88897a07 100644
--- a/src/main/java/net/minecraft/server/EntityCreature.java
+++ b/src/main/java/net/minecraft/server/EntityCreature.java
@@ -7,6 +7,7 @@ import org.bukkit.event.entity.EntityUnleashEvent;
 public abstract class EntityCreature extends EntityInsentient {
 
     public org.bukkit.craftbukkit.entity.CraftCreature getBukkitCreature() { return (org.bukkit.craftbukkit.entity.CraftCreature) super.getBukkitEntity(); } // Paper
+    public BlockPosition movingTarget = null; public BlockPosition getMovingTarget() { return movingTarget; } // Paper
     private BlockPosition a;
     private float b;
 
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 4fe91b5a2f..91f831326c 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -74,7 +74,7 @@ public abstract class EntityLiving extends Entity {
     public float aT;
     public float aU;
     public EntityHuman killer;
-    protected int lastDamageByPlayerTime;
+    public int lastDamageByPlayerTime; // Paper - public
     protected boolean aX;
     protected int ticksFarFromPlayer;
     protected float aZ;
diff --git a/src/main/java/net/minecraft/server/EntityLlama.java b/src/main/java/net/minecraft/server/EntityLlama.java
index b661a86901..26184f463a 100644
--- a/src/main/java/net/minecraft/server/EntityLlama.java
+++ b/src/main/java/net/minecraft/server/EntityLlama.java
@@ -340,6 +340,7 @@ public class EntityLlama extends EntityHorseChestedAbstract implements IRangedEn
         return this.bR != null;
     }
 
+    public boolean inCaravan() { return this.em(); } // Paper - OBFHELPER
     public boolean em() {
         return this.bQ != null;
     }
diff --git a/src/main/java/net/minecraft/server/PathfinderGoal.java b/src/main/java/net/minecraft/server/PathfinderGoal.java
index acc099e955..339c78eec9 100644
--- a/src/main/java/net/minecraft/server/PathfinderGoal.java
+++ b/src/main/java/net/minecraft/server/PathfinderGoal.java
@@ -20,7 +20,9 @@ public abstract class PathfinderGoal {
     }
 
     public void d() {
+        onTaskReset(); // Paper
     }
+    public void onTaskReset() {} // Paper
 
     public void e() {
     }
diff --git a/src/main/java/net/minecraft/server/PathfinderGoalGotoTarget.java b/src/main/java/net/minecraft/server/PathfinderGoalGotoTarget.java
index 9a75cb63ba..cf10605aaa 100644
--- a/src/main/java/net/minecraft/server/PathfinderGoalGotoTarget.java
+++ b/src/main/java/net/minecraft/server/PathfinderGoalGotoTarget.java
@@ -1,12 +1,12 @@
 package net.minecraft.server;
 
 public abstract class PathfinderGoalGotoTarget extends PathfinderGoal {
-    private final EntityCreature f;
+    private final EntityCreature f; public EntityCreature getEntity() { return f; } // Paper - OBFHELPER
     public double a;
     protected int b;
     protected int c;
     private int g;
-    protected BlockPosition d;
+    protected BlockPosition d; public BlockPosition getTarget() { return d; } public void setTarget(BlockPosition pos) { this.d = pos; getEntity().movingTarget = pos != BlockPosition.ZERO ? pos : null; } // Paper - OBFHELPER
     private boolean h;
     private final int i;
     private final int j;
@@ -15,6 +15,13 @@ public abstract class PathfinderGoalGotoTarget extends PathfinderGoal {
     public PathfinderGoalGotoTarget(EntityCreature entitycreature, double d0, int ix) {
         this(entitycreature, d0, ix, 1);
     }
+    // Paper start - activation range improvements
+    @Override
+    public void onTaskReset() {
+        super.onTaskReset();
+        setTarget(BlockPosition.ZERO);
+    }
+    // Paper end
 
     public PathfinderGoalGotoTarget(EntityCreature entitycreature, double d0, int ix, int jx) {
         this.d = BlockPosition.ZERO;
@@ -93,6 +100,7 @@ public abstract class PathfinderGoalGotoTarget extends PathfinderGoal {
                         blockposition$mutableblockposition.g(blockposition).d(i1, k - 1, j1);
                         if (this.f.f(blockposition$mutableblockposition) && this.a(this.f.world, blockposition$mutableblockposition)) {
                             this.d = blockposition$mutableblockposition;
+                            setTarget(blockposition$mutableblockposition.toBlockPosition()); // Paper
                             return true;
                         }
                     }
diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
index f9bb19fed6..d176008f44 100644
--- a/src/main/java/org/spigotmc/ActivationRange.java
+++ b/src/main/java/org/spigotmc/ActivationRange.java
@@ -13,13 +13,16 @@ import net.minecraft.server.EntityArrow;
 import net.minecraft.server.EntityComplexPart;
 import net.minecraft.server.EntityCreature;
 import net.minecraft.server.EntityCreeper;
+import net.minecraft.server.EntityDrowned;
 import net.minecraft.server.EntityEnderCrystal;
 import net.minecraft.server.EntityEnderDragon;
 import net.minecraft.server.EntityFallingBlock;
 import net.minecraft.server.EntityFireball;
 import net.minecraft.server.EntityFireworks;
+import net.minecraft.server.EntityFish;
 import net.minecraft.server.EntityHuman;
 import net.minecraft.server.EntityLiving;
+import net.minecraft.server.EntityLlama;
 import net.minecraft.server.EntityMonster;
 import net.minecraft.server.EntityProjectile;
 import net.minecraft.server.EntitySheep;
@@ -27,6 +30,7 @@ import net.minecraft.server.EntitySlime;
 import net.minecraft.server.EntityTNTPrimed;
 import net.minecraft.server.EntityThrownTrident;
 import net.minecraft.server.EntityVillager;
+import net.minecraft.server.EntityWaterAnimal;
 import net.minecraft.server.EntityWeather;
 import net.minecraft.server.EntityWither;
 import net.minecraft.server.MCUtil;
@@ -40,6 +44,7 @@ public class ActivationRange
     static AxisAlignedBB maxBB = new AxisAlignedBB( 0, 0, 0, 0, 0, 0 );
     static AxisAlignedBB miscBB = new AxisAlignedBB( 0, 0, 0, 0, 0, 0 );
     static AxisAlignedBB animalBB = new AxisAlignedBB( 0, 0, 0, 0, 0, 0 );
+    static AxisAlignedBB waterBB = new AxisAlignedBB( 0, 0, 0, 0, 0, 0 ); // Paper
     static AxisAlignedBB monsterBB = new AxisAlignedBB( 0, 0, 0, 0, 0, 0 );
 
     /**
@@ -51,6 +56,7 @@ public class ActivationRange
      */
     public static byte initializeEntityActivationType(Entity entity)
     {
+        if (entity instanceof EntityWaterAnimal) { return 4; } // Paper
         if ( entity instanceof EntityMonster || entity instanceof EntitySlime )
         {
             return 1; // Monster
@@ -75,6 +81,7 @@ public class ActivationRange
         if ( ( entity.activationType == 3 && config.miscActivationRange == 0 )
                 || ( entity.activationType == 2 && config.animalActivationRange == 0 )
                 || ( entity.activationType == 1 && config.monsterActivationRange == 0 )
+                || ( entity.activationType == 4 && config.waterActivationRange == 0 ) // Paper
                 || entity instanceof EntityHuman
                 || entity instanceof EntityProjectile
                 || entity instanceof EntityEnderDragon
@@ -106,6 +113,7 @@ public class ActivationRange
         final int miscActivationRange = world.spigotConfig.miscActivationRange;
         final int animalActivationRange = world.spigotConfig.animalActivationRange;
         final int monsterActivationRange = world.spigotConfig.monsterActivationRange;
+        final int waterActivationRange = world.spigotConfig.waterActivationRange; // Paper
 
         int maxRange = Math.max( monsterActivationRange, animalActivationRange );
         maxRange = Math.max( maxRange, miscActivationRange );
@@ -119,6 +127,7 @@ public class ActivationRange
             maxBB = player.getBoundingBox().grow( playerMaxRange, 256, playerMaxRange ); // Paper - Use player view distance API
             miscBB = player.getBoundingBox().grow( miscActivationRange, 256, miscActivationRange );
             animalBB = player.getBoundingBox().grow( animalActivationRange, 256, animalActivationRange );
+            waterBB = player.getBoundingBox().grow( waterActivationRange, 256, waterActivationRange ); // Paper
             monsterBB = player.getBoundingBox().grow( monsterActivationRange, 256, monsterActivationRange );
 
             int i = MathHelper.floor( maxBB.a / 16.0D );
@@ -172,6 +181,14 @@ public class ActivationRange
                                 entity.activatedTick = MinecraftServer.currentTick;
                             }
                             break;
+                            // Paper start
+                        case 4:
+                            if ( waterBB.c( entity.getBoundingBox() ) )
+                            {
+                                entity.activatedTick = MinecraftServer.currentTick;
+                            }
+                            break;
+                            // Paper end
                         case 3:
                         default:
                             if ( miscBB.c( entity.getBoundingBox() ) )
@@ -193,8 +210,13 @@ public class ActivationRange
      */
     public static boolean checkEntityImmunities(Entity entity)
     {
+        // Paper start - optimize Water cases
+        if (entity instanceof EntityFish) {
+            return false;
+        }
         // quick checks.
-        if ( entity.inWater || entity.fireTicks > 0 )
+        if ( (entity.inWater && (!(entity instanceof EntityWaterAnimal || entity instanceof EntityDrowned))) || entity.fireTicks > 0 )
+        // Paper end
         {
             return true;
         }
@@ -212,18 +234,29 @@ public class ActivationRange
         if ( entity instanceof EntityLiving )
         {
             EntityLiving living = (EntityLiving) entity;
-            if ( /*TODO: Missed mapping? living.attackTicks > 0 || */ living.hurtTicks > 0 || living.effects.size() > 0 )
+            if ( living.lastDamageByPlayerTime > 0 || living.hurtTicks > 0 || living.effects.size() > 0 ) // Paper
             {
                 return true;
             }
-            if ( entity instanceof EntityCreature && ( (EntityCreature) entity ).getGoalTarget() != null )
+            if ( entity instanceof EntityCreature )
             {
-                return true;
+                // Paper start
+                EntityCreature creature = (EntityCreature) entity;
+                if (creature.getGoalTarget() != null || creature.getMovingTarget() != null) {
+                    return true;
+                }
+                // Paper end
             }
             if ( entity instanceof EntityVillager && ( (EntityVillager) entity ).isInLove() )
             {
                 return true;
             }
+            // Paper start
+            if ( entity instanceof EntityLlama && ( (EntityLlama ) entity ).inCaravan() )
+            {
+                return true;
+            }
+            // Paper end
             if ( entity instanceof EntityAnimal )
             {
                 EntityAnimal animal = (EntityAnimal) entity;
@@ -276,10 +309,10 @@ public class ActivationRange
         {
             isActive = false;
         }
-        int x = MathHelper.floor( entity.locX );
-        int z = MathHelper.floor( entity.locZ );
+        //int x = MathHelper.floor( entity.locX ); // Paper
+        //int z = MathHelper.floor( entity.locZ ); // Paper
         // Make sure not on edge of unloaded chunk
-        Chunk chunk = entity.world.getChunkIfLoaded( x >> 4, z >> 4 );
+        Chunk chunk = entity.getChunkAtLocation(); // Paper
         if ( isActive && !( chunk != null && chunk.areNeighborsLoaded( 1 ) ) )
         {
             isActive = false;
diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
index 87bc8e2d9c..06d84a0b66 100644
--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
@@ -144,12 +144,14 @@ public class SpigotWorldConfig
     public int animalActivationRange = 32;
     public int monsterActivationRange = 32;
     public int miscActivationRange = 16;
+    public int waterActivationRange = 16; // Paper
     public boolean tickInactiveVillagers = true;
     private void activationRange()
     {
         animalActivationRange = getInt( "entity-activation-range.animals", animalActivationRange );
         monsterActivationRange = getInt( "entity-activation-range.monsters", monsterActivationRange );
         miscActivationRange = getInt( "entity-activation-range.misc", miscActivationRange );
+        waterActivationRange = getInt( "entity-activation-range.water", waterActivationRange ); // Paper
         tickInactiveVillagers = getBoolean( "entity-activation-range.tick-inactive-villagers", tickInactiveVillagers );
         log( "Entity Activation Range: An " + animalActivationRange + " / Mo " + monsterActivationRange + " / Mi " + miscActivationRange + " / Tiv " + tickInactiveVillagers );
     }
-- 
2.19.0