Paper/patches/server/0014-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 78948c42b13194005bdbbbc69c2b7ae0732a78c5..b41e7922dd96c3358eb849ab39982a75736e3476 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -97,4 +97,9 @@ 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/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 2bfafeec6f8a605a7826091314992e61a49e4c51..6d7f2db63d586b96939cfc3643ebae3a952a4836 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -1264,6 +1264,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
         return this.isInWater() || this.isInRain();
     }
 
+    public final boolean isInWaterOrRainOrBubble() { return isInWaterRainOrBubble(); } // Paper - OBFHELPER
     public boolean isInWaterRainOrBubble() {
         return this.isInWater() || this.isInRain() || this.isInBubbleColumn();
     }
diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index e4f3dbff2605243039f9f59f025c931b3fb309c5..3a444371e484defa3119d04b9fa7cf50ca5966ec 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -103,6 +103,7 @@ public abstract class Mob extends LivingEntity {
     private final BodyRotationControl bodyRotationControl;
     protected PathNavigation navigation;
     public GoalSelector goalSelector;
+    @Nullable public net.minecraft.world.entity.ai.goal.FloatGoal goalFloat; // Paper
     public GoalSelector targetSelector;
     private LivingEntity target;
     private final Sensing sensing;
@@ -794,7 +795,17 @@ public abstract class Mob extends LivingEntity {
     @Override
     protected final void serverAiStep() {
         ++this.noActionTime;
-        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.getJumpControl().jumpIfSet();
+            }
+            if ((this instanceof net.minecraft.world.entity.monster.Blaze || this instanceof net.minecraft.world.entity.monster.EnderMan) && isInWaterRainOrBubble()) {
+                hurt(DamageSource.DROWN, 1.0F);
+            }
+            return;
+        }
+        // Paper end
         this.level.getProfiler().push("sensing");
         this.sensing.tick();
         this.level.getProfiler().pop();
diff --git a/src/main/java/net/minecraft/world/entity/ai/control/JumpControl.java b/src/main/java/net/minecraft/world/entity/ai/control/JumpControl.java
index 4b85418a53018ce9a70fddde2ab18d52d2fc97d1..83c68b492d4596583160e3c6d56080a11777719c 100644
--- a/src/main/java/net/minecraft/world/entity/ai/control/JumpControl.java
+++ b/src/main/java/net/minecraft/world/entity/ai/control/JumpControl.java
@@ -14,6 +14,7 @@ public class JumpControl implements Control {
         this.jump = true;
     }
 
+    public final void jumpIfSet() { this.tick(); } // Paper - OBFHELPER
     public void tick() {
         this.mob.setJumping(this.jump);
         this.jump = false;
diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/FloatGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/FloatGoal.java
index 54085b104547f2fe7c08ff8aa4839b1230877bca..5a2e3cc833b3fa7d6fcea1474e25c469a53b3bae 100644
--- a/src/main/java/net/minecraft/world/entity/ai/goal/FloatGoal.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/FloatGoal.java
@@ -9,15 +9,18 @@ public class FloatGoal extends Goal {
 
     public FloatGoal(Mob mob) {
         this.mob = mob;
+        if (mob.getCommandSenderWorld().paperConfig.nerfedMobsShouldJump) mob.goalFloat = this; // Paper
         this.setFlags(EnumSet.of(Goal.Flag.JUMP));
         mob.getNavigation().setCanFloat(true);
     }
 
+    public final boolean validConditions() { return this.canUse(); } // Paper - OBFHELPER
     @Override
     public boolean canUse() {
         return this.mob.isInWater() && this.mob.getFluidHeight(FluidTags.WATER) > this.mob.getFluidJumpThreshold() || this.mob.isInLava();
     }
 
+    public void update() { this.tick(); } // Paper - OBFHELPER
     @Override
     public void tick() {
         if (this.mob.getRandom().nextFloat() < 0.8F) {