From a35fd8580409ac0c309eb3af91c1e00cdeeeb359 Mon Sep 17 00:00:00 2001
From: willies952002 <admin@domnian.com>
Date: Thu, 26 Jul 2018 02:25:46 -0400
Subject: [PATCH] Implement Expanded ArmorStand API

Add the following:
- Add proper methods for getting and setting items in both hands. Deprecates old methods
- Enable/Disable slot interactions

diff --git a/src/main/java/net/minecraft/server/EntityArmorStand.java b/src/main/java/net/minecraft/server/EntityArmorStand.java
index 81226d6042..b5b7631919 100644
--- a/src/main/java/net/minecraft/server/EntityArmorStand.java
+++ b/src/main/java/net/minecraft/server/EntityArmorStand.java
@@ -36,7 +36,7 @@ public class EntityArmorStand extends EntityLiving {
     private final NonNullList<ItemStack> armorItems;
     private boolean bD;
     public long bt;
-    private int bE;
+    private int bE; public void setDisabledSlots(int i) { bE = i;} public int getDisabledSlots() { return bE ;} // Paper - OBFHELPER
     public Vector3f headPose;
     public Vector3f bodyPose;
     public Vector3f leftArmPose;
@@ -381,6 +381,7 @@ public class EntityArmorStand extends EntityLiving {
         return enumitemslot;
     }
 
+    public boolean isSlotDisabled(EnumItemSlot slot) { return this.d(slot); } // Paper - OBFHELPER
     public boolean d(EnumItemSlot enumitemslot) {
         return (this.bE & 1 << enumitemslot.c()) != 0 || enumitemslot.a() == EnumItemSlot.Function.HAND && !this.hasArms();
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java
index 124c3185bc..9f5c3b92e3 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftArmorStand.java
@@ -30,11 +30,13 @@ public class CraftArmorStand extends CraftLivingEntity implements ArmorStand {
     }
 
     @Override
+    @Deprecated // Paper
     public ItemStack getItemInHand() {
         return getEquipment().getItemInHand();
     }
 
     @Override
+    @Deprecated // Paper
     public void setItemInHand(ItemStack item) {
         getEquipment().setItemInHand(item);
     }
@@ -222,5 +224,78 @@ public class CraftArmorStand extends CraftLivingEntity implements ArmorStand {
     public void setCanMove(boolean move) {
         getHandle().canMove = move;
     }
+
+    @Override
+    public ItemStack getItem(org.bukkit.inventory.EquipmentSlot slot) {
+        com.google.common.base.Preconditions.checkNotNull(slot, "slot");
+        return getHandle().getEquipment(org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot)).asBukkitMirror();
+    }
+
+    @Override
+    public void setItem(org.bukkit.inventory.EquipmentSlot slot, ItemStack item) {
+        com.google.common.base.Preconditions.checkNotNull(slot, "slot");
+        switch (slot) {
+            case HAND:
+                getEquipment().setItemInMainHand(item);
+                return;
+            case OFF_HAND:
+                getEquipment().setItemInOffHand(item);
+                return;
+            case FEET:
+                setBoots(item);
+                return;
+            case LEGS:
+                setLeggings(item);
+                break;
+            case CHEST:
+                setChestplate(item);
+                return;
+            case HEAD:
+                setHelmet(item);
+                return;
+        }
+        throw new UnsupportedOperationException(slot.name());
+    }
+
+    @Override
+    public java.util.Set<org.bukkit.inventory.EquipmentSlot> getDisabledSlots() {
+        java.util.Set<org.bukkit.inventory.EquipmentSlot> disabled = new java.util.HashSet<>();
+        for (org.bukkit.inventory.EquipmentSlot slot : org.bukkit.inventory.EquipmentSlot.values()) {
+            if (this.isSlotDisabled(slot)) {
+                disabled.add(slot);
+            }
+        }
+        return disabled;
+    }
+
+    @Override
+    public void setDisabledSlots(org.bukkit.inventory.EquipmentSlot... slots) {
+        int disabled = 0;
+        for (org.bukkit.inventory.EquipmentSlot slot : slots) {
+            if (slot == org.bukkit.inventory.EquipmentSlot.OFF_HAND) continue;
+            net.minecraft.server.EnumItemSlot nmsSlot = org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot);
+            disabled += (1 << nmsSlot.c()) + (1 << (nmsSlot.c() + 8)) + (1 << (nmsSlot.c() + 16));
+        }
+        getHandle().setDisabledSlots(disabled);
+    }
+
+    @Override
+    public void addDisabledSlots(org.bukkit.inventory.EquipmentSlot... slots) {
+        java.util.Set<org.bukkit.inventory.EquipmentSlot> disabled = getDisabledSlots();
+        java.util.Collections.addAll(disabled, slots);
+        setDisabledSlots(disabled.toArray(new org.bukkit.inventory.EquipmentSlot[0]));
+    }
+
+    @Override
+    public void removeDisabledSlots(org.bukkit.inventory.EquipmentSlot... slots) {
+        java.util.Set<org.bukkit.inventory.EquipmentSlot> disabled = getDisabledSlots();
+        for (final org.bukkit.inventory.EquipmentSlot slot : slots) disabled.remove(slot);
+        setDisabledSlots(disabled.toArray(new org.bukkit.inventory.EquipmentSlot[0]));
+    }
+
+    @Override
+    public boolean isSlotDisabled(org.bukkit.inventory.EquipmentSlot slot) {
+        return getHandle().isSlotDisabled(org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot));
+    }
     // Paper end
 }
-- 
2.21.0