Paper/nms-patches/EntityHorse.patch

--- a/net/minecraft/server/EntityHorse.java
+++ b/net/minecraft/server/EntityHorse.java
@@ -4,6 +4,8 @@
 import java.util.Iterator;
 import java.util.List;
 
+import org.bukkit.event.entity.EntityRegainHealthEvent.RegainReason; // CraftBukkit
+
 public class EntityHorse extends EntityAnimal implements IInventoryListener {
 
     private static final Predicate<Entity> bs = new Predicate() {
@@ -44,6 +46,7 @@
     private String bO;
     private String[] bP = new String[3];
     private boolean bQ = false;
+    public int maxDomestication = 100; // CraftBukkit - store max domestication value
 
     public EntityHorse(World world) {
         super(world);
@@ -320,13 +323,13 @@
     private int cZ() {
         int i = this.getType();
 
-        return this.hasChest() && (i == 1 || i == 2) ? 17 : 2;
+        return this.hasChest() /* && (i == 1 || i == 2) */ ? 17 : 2; // CraftBukkit - Remove type check
     }
 
     public void loadChest() {
         InventoryHorseChest inventoryhorsechest = this.inventoryChest;
 
-        this.inventoryChest = new InventoryHorseChest("HorseChest", this.cZ());
+        this.inventoryChest = new InventoryHorseChest("HorseChest", this.cZ(), this); // CraftBukkit - add this horse
         this.inventoryChest.a(this.getName());
         if (inventoryhorsechest != null) {
             inventoryhorsechest.b(this);
@@ -491,7 +494,7 @@
     }
 
     public int getMaxDomestication() {
-        return 100;
+        return this.maxDomestication; // CraftBukkit - return stored max domestication instead of 100
     }
 
     protected float bB() {
@@ -591,7 +594,7 @@
                     }
 
                     if (this.getHealth() < this.getMaxHealth() && f > 0.0F) {
-                        this.heal(f);
+                        this.heal(f, RegainReason.EATING); // CraftBukkit
                         flag = true;
                     }
 
@@ -698,11 +701,24 @@
 
     public void die(DamageSource damagesource) {
         super.die(damagesource);
+        /* CraftBukkit start - Handle chest dropping in dropDeathLoot below
         if (!this.world.isClientSide) {
             this.dropChest();
         }
+        // CraftBukkit end */
+    }
 
+    // CraftBukkit start - Add method
+    @Override
+    protected void dropDeathLoot(boolean flag, int i) {
+        super.dropDeathLoot(flag, i);
+
+        // Moved from die method above
+        if (!this.world.isClientSide) {
+            this.dropChest();
+        }
     }
+    // CraftBukkit end
 
     public void m() {
         if (this.random.nextInt(200) == 0) {
@@ -712,7 +728,7 @@
         super.m();
         if (!this.world.isClientSide) {
             if (this.random.nextInt(900) == 0 && this.deathTicks == 0) {
-                this.heal(1.0F);
+                this.heal(1.0F, RegainReason.REGEN); // CraftBukkit
             }
 
             if (!this.cy() && this.passenger == null && this.random.nextInt(300) == 0 && this.world.getType(new BlockPosition(MathHelper.floor(this.locX), MathHelper.floor(this.locY) - 1, MathHelper.floor(this.locZ))).getBlock() == Blocks.GRASS) {
@@ -955,6 +971,7 @@
         nbttagcompound.setInt("Temper", this.getTemper());
         nbttagcompound.setBoolean("Tame", this.isTame());
         nbttagcompound.setString("OwnerUUID", this.getOwnerUUID());
+        nbttagcompound.setInt("Bukkit.MaxDomestication", this.maxDomestication); // CraftBukkit
         if (this.hasChest()) {
             NBTTagList nbttaglist = new NBTTagList();
 
@@ -1007,6 +1024,12 @@
             this.setOwnerUUID(s);
         }
 
+        // CraftBukkit start
+        if (nbttagcompound.hasKey("Bukkit.MaxDomestication")) {
+            this.maxDomestication = nbttagcompound.getInt("Bukkit.MaxDomestication");
+        }
+        // CraftBukkit end
+
         AttributeInstance attributeinstance = this.getAttributeMap().a("Speed");
 
         if (attributeinstance != null) {
@@ -1172,18 +1195,25 @@
 
     public void v(int i) {
         if (this.cG()) {
+            // CraftBukkit start - fire HorseJumpEvent, use event power
             if (i < 0) {
                 i = 0;
-            } else {
-                this.bG = true;
-                this.dh();
             }
 
+            float power;
             if (i >= 90) {
-                this.br = 1.0F;
+                power = 1.0F;
             } else {
-                this.br = 0.4F + 0.4F * (float) i / 90.0F;
+                power = 0.4F + 0.4F * (float) i / 90.0F;
+            }
+
+            org.bukkit.event.entity.HorseJumpEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callHorseJumpEvent(this, power);
+            if (!event.isCancelled()) {
+                this.bG = true;
+                this.dh();
+                this.br = power;
             }
+            // CraftBukkit end
         }
 
     }