From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Sat, 27 Jan 2018 17:04:14 -0500
Subject: [PATCH] Add ArmorStand Item Meta

This is adds basic item meta for armor stands. It does not add all
possible metadata however.

There are armor, hand, and equipment types, as well as position data
that can also be added here. This initial addition should serve a
starting point for future additions in this area.

Fixes GH-559

diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaArmorStand.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaArmorStand.java
index f700522840ee0dfd90871b1b0c8973d7d62a9353..3723faccac00afe19e59d71008ba1604fc9d8630 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaArmorStand.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaArmorStand.java
@@ -8,13 +8,39 @@ import org.bukkit.Material;
 import org.bukkit.configuration.serialization.DelegateDeserialization;
 
 @DelegateDeserialization(CraftMetaItem.SerializableMeta.class)
-public class CraftMetaArmorStand extends CraftMetaItem {
+public class CraftMetaArmorStand extends CraftMetaItem implements com.destroystokyo.paper.inventory.meta.ArmorStandMeta { // Paper
 
     static final ItemMetaKey ENTITY_TAG = new ItemMetaKey("EntityTag", "entity-tag");
+    // Paper start
+    static final ItemMetaKey INVISIBLE = new ItemMetaKey("Invisible", "invisible");
+    static final ItemMetaKey NO_BASE_PLATE = new ItemMetaKey("NoBasePlate", "no-base-plate");
+    static final ItemMetaKey SHOW_ARMS = new ItemMetaKey("ShowArms", "show-arms");
+    static final ItemMetaKey SMALL = new ItemMetaKey("Small", "small");
+    static final ItemMetaKey MARKER = new ItemMetaKey("Marker", "marker");
+
+    private boolean invisible;
+    private boolean noBasePlate;
+    private boolean showArms;
+    private boolean small;
+    private boolean marker;
+    // Paper end
     NBTTagCompound entityTag;
 
     CraftMetaArmorStand(CraftMetaItem meta) {
         super(meta);
+        
+        // Paper start
+        if (!(meta instanceof CraftMetaArmorStand)) {
+            return;
+        }
+
+        CraftMetaArmorStand standMeta = (CraftMetaArmorStand) meta;
+        this.invisible = standMeta.invisible;
+        this.noBasePlate = standMeta.noBasePlate;
+        this.showArms = standMeta.showArms;
+        this.small = standMeta.small;
+        this.marker = standMeta.marker;
+        // Paper end
     }
 
     CraftMetaArmorStand(NBTTagCompound tag) {
@@ -22,11 +48,47 @@ public class CraftMetaArmorStand extends CraftMetaItem {
 
         if (tag.hasKey(ENTITY_TAG.NBT)) {
             entityTag = tag.getCompound(ENTITY_TAG.NBT);
+
+            // Paper start
+            if (entityTag.hasKey(INVISIBLE.NBT)) {
+                invisible = entityTag.getBoolean(INVISIBLE.NBT);
+            }
+
+            if (entityTag.hasKey(NO_BASE_PLATE.NBT)) {
+                noBasePlate = entityTag.getBoolean(NO_BASE_PLATE.NBT);
+            }
+
+            if (entityTag.hasKey(SHOW_ARMS.NBT)) {
+                showArms = entityTag.getBoolean(SHOW_ARMS.NBT);
+            }
+
+            if (entityTag.hasKey(SMALL.NBT)) {
+                small = entityTag.getBoolean(SMALL.NBT);
+            }
+
+            if (entityTag.hasKey(MARKER.NBT)) {
+                marker = entityTag.getBoolean(MARKER.NBT);
+            }
+            // Paper end
         }
     }
 
     CraftMetaArmorStand(Map<String, Object> map) {
         super(map);
+
+        // Paper start
+        boolean invis = SerializableMeta.getBoolean(map, INVISIBLE.BUKKIT);
+        boolean noBase = SerializableMeta.getBoolean(map, NO_BASE_PLATE.BUKKIT);
+        boolean showArms = SerializableMeta.getBoolean(map, SHOW_ARMS.BUKKIT);
+        boolean small = SerializableMeta.getBoolean(map, SMALL.BUKKIT);
+        boolean marker = SerializableMeta.getBoolean(map, MARKER.BUKKIT);
+
+        this.invisible = invis;
+        this.noBasePlate = noBase;
+        this.showArms = showArms;
+        this.small = small;
+        this.marker = marker;
+        // Paper end
     }
 
     @Override
@@ -49,6 +111,32 @@ public class CraftMetaArmorStand extends CraftMetaItem {
     void applyToItem(NBTTagCompound tag) {
         super.applyToItem(tag);
 
+        // Paper start
+        if (!isArmorStandEmpty() && entityTag == null) {
+            entityTag = new NBTTagCompound();
+        }
+
+        if (isInvisible()) {
+            entityTag.setBoolean(INVISIBLE.NBT, invisible);
+        }
+
+        if (hasNoBasePlate()) {
+            entityTag.setBoolean(NO_BASE_PLATE.NBT, noBasePlate);
+        }
+
+        if (shouldShowArms()) {
+            entityTag.setBoolean(SHOW_ARMS.NBT, showArms);
+        }
+
+        if (isSmall()) {
+            entityTag.setBoolean(SMALL.NBT, small);
+        }
+
+        if (isMarker()) {
+            entityTag.setBoolean(MARKER.NBT, marker);
+        }
+        // Paper end
+
         if (entityTag != null) {
             tag.set(ENTITY_TAG.NBT, entityTag);
         }
@@ -70,7 +158,7 @@ public class CraftMetaArmorStand extends CraftMetaItem {
     }
 
     boolean isArmorStandEmpty() {
-        return !(entityTag != null);
+        return !(isInvisible() || hasNoBasePlate() || shouldShowArms() || isSmall() || isMarker() || entityTag != null);
     }
 
     @Override
@@ -81,7 +169,13 @@ public class CraftMetaArmorStand extends CraftMetaItem {
         if (meta instanceof CraftMetaArmorStand) {
             CraftMetaArmorStand that = (CraftMetaArmorStand) meta;
 
-            return entityTag != null ? that.entityTag != null && this.entityTag.equals(that.entityTag) : entityTag == null;
+            // Paper start
+            return invisible == that.invisible &&
+                noBasePlate == that.noBasePlate &&
+                showArms == that.showArms &&
+                small == that.small &&
+                marker == that.marker;
+            // Paper end
         }
         return true;
     }
@@ -96,9 +190,14 @@ public class CraftMetaArmorStand extends CraftMetaItem {
         final int original;
         int hash = original = super.applyHash();
 
-        if (entityTag != null) {
-            hash = 73 * hash + entityTag.hashCode();
-        }
+        // Paper start
+        hash += entityTag != null ? 73 * hash + entityTag.hashCode() : 0;
+        hash += isInvisible() ? 61 * hash + 1231 : 0;
+        hash += hasNoBasePlate() ? 61 * hash + 1231 : 0;
+        hash += shouldShowArms() ? 61 * hash + 1231 : 0;
+        hash += isSmall() ? 61 * hash + 1231 : 0;
+        hash += isMarker() ? 61 * hash + 1231 : 0;
+        // Paper end
 
         return original != hash ? CraftMetaArmorStand.class.hashCode() ^ hash : hash;
     }
@@ -107,6 +206,28 @@ public class CraftMetaArmorStand extends CraftMetaItem {
     Builder<String, Object> serialize(Builder<String, Object> builder) {
         super.serialize(builder);
 
+        // Paper start
+        if (isInvisible()) {
+            builder.put(INVISIBLE.BUKKIT, invisible);
+        }
+
+        if (hasNoBasePlate()) {
+            builder.put(NO_BASE_PLATE.BUKKIT, noBasePlate);
+        }
+
+        if (shouldShowArms()) {
+            builder.put(SHOW_ARMS.BUKKIT, showArms);
+        }
+
+        if (isSmall()) {
+            builder.put(SMALL.BUKKIT, small);
+        }
+
+        if (isMarker()) {
+            builder.put(MARKER.BUKKIT, marker);
+        }
+        // Paper end
+
         return builder;
     }
 
@@ -120,4 +241,56 @@ public class CraftMetaArmorStand extends CraftMetaItem {
 
         return clone;
     }
+
+    // Paper start
+    @Override
+    public boolean isInvisible() {
+        return invisible;
+    }
+
+    @Override
+    public boolean hasNoBasePlate() {
+        return noBasePlate;
+    }
+
+    @Override
+    public boolean shouldShowArms() {
+        return showArms;
+    }
+
+    @Override
+    public boolean isSmall() {
+        return small;
+    }
+
+    @Override
+    public boolean isMarker() {
+        return marker;
+    }
+
+    @Override
+    public void setInvisible(boolean invisible) {
+        this.invisible = invisible;
+    }
+
+    @Override
+    public void setNoBasePlate(boolean noBasePlate) {
+        this.noBasePlate = noBasePlate;
+    }
+
+    @Override
+    public void setShowArms(boolean showArms) {
+        this.showArms = showArms;
+    }
+
+    @Override
+    public void setSmall(boolean small) {
+        this.small = small;
+    }
+
+    @Override
+    public void setMarker(boolean marker) {
+        this.marker = marker;
+    }
+    // Paper end
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
index 854836b839ffd650161f5ae7be3080362ac434b7..15d27001e8d574e5a4b2bd808e3d17e0cb823f6c 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
@@ -1429,7 +1429,15 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
                         CraftMetaTropicalFishBucket.VARIANT.NBT,
                         CraftMetaCrossbow.CHARGED.NBT,
                         CraftMetaCrossbow.CHARGED_PROJECTILES.NBT,
-                        CraftMetaSuspiciousStew.EFFECTS.NBT
+                        CraftMetaSuspiciousStew.EFFECTS.NBT,
+                        // Paper start
+                        CraftMetaArmorStand.ENTITY_TAG.NBT,
+                        CraftMetaArmorStand.INVISIBLE.NBT,
+                        CraftMetaArmorStand.NO_BASE_PLATE.NBT,
+                        CraftMetaArmorStand.SHOW_ARMS.NBT,
+                        CraftMetaArmorStand.SMALL.NBT,
+                        CraftMetaArmorStand.MARKER.NBT
+                        // Paper end
                 ));
             }
             return HANDLED_TAGS;
diff --git a/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java b/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
index e4305ce522e1cec438baae50487d2a737c75051a..ba4cc98f1ec39ccfd433aeadf4b5c7018a1d40cc 100644
--- a/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
+++ b/src/test/java/org/bukkit/craftbukkit/inventory/ItemMetaTest.java
@@ -6,6 +6,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.UUID;
+import com.destroystokyo.paper.inventory.meta.ArmorStandMeta; // Paper
 import net.minecraft.server.Block;
 import net.minecraft.server.IRegistry;
 import net.minecraft.server.ITileEntity;
@@ -313,6 +314,7 @@ public class ItemMetaTest extends AbstractTestingBase {
                     final CraftMetaArmorStand meta = (CraftMetaArmorStand) cleanStack.getItemMeta();
                     meta.entityTag = new NBTTagCompound();
                     meta.entityTag.setBoolean("Small", true);
+                    meta.setInvisible(true); // Paper
                     cleanStack.setItemMeta(meta);
                     return cleanStack;
                 }
