PaperMC/Spigot-Server-Patches/0013-Allow-nerfed-mobs-to-jump-and-take-water-damage.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Tue, 1 Mar 2016 13:24:16 -0600
Subject: [PATCH] Allow nerfed mobs to jump and take water damage


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 02f4342b23ad4a3ad0ed09affe7ce5e572354668..4982fd2842342fe9a37123e34af0040ec580cf2d 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -93,4 +93,9 @@ public class PaperWorldConfig {
         fishingMaxTicks = getInt("fishing-time-range.MaximumTicks", 600);
         log("Fishing time ranges are between " + fishingMinTicks +" and " + fishingMaxTicks + " ticks");
     }
+
+    public boolean nerfedMobsShouldJump;
+    private void nerfedMobsShouldJump() {
+        nerfedMobsShouldJump = getBoolean("spawner-nerfed-mobs-should-jump", false);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/ControllerJump.java b/src/main/java/net/minecraft/server/ControllerJump.java
index 2e869004c8c6b8bfbb002fb4eda04519d50390c8..22eb89df768819f0a18f91b806b56acec8489281 100644
--- a/src/main/java/net/minecraft/server/ControllerJump.java
+++ b/src/main/java/net/minecraft/server/ControllerJump.java
@@ -13,6 +13,7 @@ public class ControllerJump {
         this.a = true;
     }
 
+    public final void jumpIfSet() { this.b(); } // Paper - OBFHELPER
     public void b() {
         this.b.setJumping(this.a);
         this.a = false;
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index a6534087b10c9a469a3d2cf4da717fab17b31544..bbb66e90aba2332c7c87a173639efc6ad61f5d53 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -1020,6 +1020,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
         return this.isInWater() || this.isInRain();
     }
 
+    public final boolean isInWaterOrRainOrBubble() { return aG(); } // Paper - OBFHELPER
     public boolean aG() {
         return this.isInWater() || this.isInRain() || this.k();
     }
diff --git a/src/main/java/net/minecraft/server/EntityInsentient.java b/src/main/java/net/minecraft/server/EntityInsentient.java
index 09ac187ba8ff52f6fa1f0d5d00a138518bacb50a..59af58e1aed678b8eac83f2346f5822aff700fb7 100644
--- a/src/main/java/net/minecraft/server/EntityInsentient.java
+++ b/src/main/java/net/minecraft/server/EntityInsentient.java
@@ -33,6 +33,7 @@ public abstract class EntityInsentient extends EntityLiving {
     private final EntityAIBodyControl c;
     protected NavigationAbstract navigation;
     public PathfinderGoalSelector goalSelector;
+    @Nullable public PathfinderGoalFloat goalFloat; // Paper
     public PathfinderGoalSelector targetSelector;
     private EntityLiving goalTarget;
     private final EntitySenses bo;
@@ -719,7 +720,17 @@ public abstract class EntityInsentient extends EntityLiving {
     @Override
     protected final void doTick() {
         ++this.ticksFarFromPlayer;
-        if (!this.aware) return; // CraftBukkit
+        if (!this.aware) { // Paper start - Allow nerfed mobs to jump, float and take water damage
+            if (goalFloat != null) {
+                if (goalFloat.validConditions()) goalFloat.update();
+                this.getControllerJump().jumpIfSet();
+            }
+            if ((this instanceof EntityBlaze || this instanceof EntityEnderman) && isInWaterOrRainOrBubble()) {
+                damageEntity(DamageSource.DROWN, 1.0F);
+            }
+            return;
+        }
+        // Paper end
         this.world.getMethodProfiler().enter("sensing");
         this.bo.a();
         this.world.getMethodProfiler().exit();
diff --git a/src/main/java/net/minecraft/server/PathfinderGoalFloat.java b/src/main/java/net/minecraft/server/PathfinderGoalFloat.java
index fd861cbc007c164f9a18ebfe7e4d0e4fe01db54c..8030376804823264bb5a701c1304414ac932af9c 100644
--- a/src/main/java/net/minecraft/server/PathfinderGoalFloat.java
+++ b/src/main/java/net/minecraft/server/PathfinderGoalFloat.java
@@ -8,15 +8,18 @@ public class PathfinderGoalFloat extends PathfinderGoal {
 
     public PathfinderGoalFloat(EntityInsentient entityinsentient) {
         this.a = entityinsentient;
+        if (entityinsentient.getWorld().paperConfig.nerfedMobsShouldJump) entityinsentient.goalFloat = this; // Paper
         this.a(EnumSet.of(PathfinderGoal.Type.JUMP));
         entityinsentient.getNavigation().d(true);
     }
 
+    public final boolean validConditions() { return this.a(); } // Paper - OBFHELPER
     @Override
     public boolean a() {
         return this.a.isInWater() && this.a.b((Tag) TagsFluid.WATER) > this.a.cx() || this.a.aQ();
     }
 
+    public void update() { this.e(); } // Paper - OBFHELPER
     @Override
     public void e() {
         if (this.a.getRandom().nextFloat() < 0.8F) {