Paper/patches/api/0126-Expand-ArmorStand-API.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: willies952002 <admin@domnian.com>
Date: Thu, 26 Jul 2018 02:22:44 -0400
Subject: [PATCH] Expand ArmorStand API

Adds the following:
- Add proper methods for getting and setting items in both hands. Deprecates old methods
- Enable/Disable slot interactions
- Allow using degrees for ArmorStand rotations (via new Rotations class)

Co-authored-by: SoSeDiK <mrsosedik@gmail.com>

diff --git a/src/main/java/io/papermc/paper/math/Rotations.java b/src/main/java/io/papermc/paper/math/Rotations.java
new file mode 100644
index 0000000000000000000000000000000000000000..0ac1618113699ac50b9c35294bf23fb9fb7cfbad
--- /dev/null
+++ b/src/main/java/io/papermc/paper/math/Rotations.java
@@ -0,0 +1,100 @@
+package io.papermc.paper.math;
+
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Rotations is an immutable object that stores rotations
+ * in degrees on each axis (X, Y, Z).
+ */
+public interface Rotations {
+
+    /**
+     * Rotations instance with every axis set to 0
+     */
+    Rotations ZERO = ofDegrees(0, 0, 0);
+
+    /**
+     * Creates a new Rotations instance holding the provided rotations
+     *
+     * @param x the angle for the X axis in degrees
+     * @param y the angle for the Y axis in degrees
+     * @param z the angle for the Z axis in degrees
+     * @return Rotations instance holding the provided rotations
+     */
+    static @NotNull Rotations ofDegrees(double x, double y, double z) {
+        return new RotationsImpl(x, y, z);
+    }
+
+    /**
+     * Returns the angle on the X axis in degrees
+     *
+     * @return the angle in degrees
+     */
+    double x();
+
+    /**
+     * Returns the angle on the Y axis in degrees
+     *
+     * @return the angle in degrees
+     */
+    double y();
+
+    /**
+     * Returns the angle on the Z axis in degrees
+     *
+     * @return the angle in degrees
+     */
+    double z();
+
+    /**
+     * Returns a new Rotations instance which is the result
+     * of changing the X axis to the passed angle
+     *
+     * @param x the angle in degrees
+     * @return the resultant Rotations
+     */
+    @NotNull Rotations withX(double x);
+
+    /**
+     * Returns a new Rotations instance which is the result
+     * of changing the Y axis to the passed angle
+     *
+     * @param y the angle in degrees
+     * @return the resultant Rotations
+     */
+    @NotNull Rotations withY(double y);
+
+    /**
+     * Returns a new Rotations instance which is the result
+     * of changing the Z axis to the passed angle
+     *
+     * @param z the angle in degrees
+     * @return the resultant Rotations
+     */
+    @NotNull Rotations withZ(double z);
+
+    /**
+     * Returns a new Rotations instance which is the result of adding
+     * the x, y, z components to this Rotations
+     *
+     * @param x the angle to add to the X axis in degrees
+     * @param y the angle to add to the Y axis in degrees
+     * @param z the angle to add to the Z axis in degrees
+     * @return the resultant Rotations
+     */
+    @NotNull Rotations add(double x, double y, double z);
+
+    /**
+     * Returns a new Rotations instance which is the result of subtracting
+     * the x, y, z components from this Rotations
+     *
+     * @param x the angle to subtract from the X axis in degrees
+     * @param y the angle to subtract from the Y axis in degrees
+     * @param z the angle to subtract from the Z axis in degrees
+     * @return the resultant Rotations
+     */
+    default @NotNull Rotations subtract(double x, double y, double z) {
+        return add(-x, -y, -z);
+    }
+
+}
diff --git a/src/main/java/io/papermc/paper/math/RotationsImpl.java b/src/main/java/io/papermc/paper/math/RotationsImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..53359ab4a6659bce895deef6a21cde848d3cadcd
--- /dev/null
+++ b/src/main/java/io/papermc/paper/math/RotationsImpl.java
@@ -0,0 +1,27 @@
+package io.papermc.paper.math;
+
+import org.jetbrains.annotations.NotNull;
+
+record RotationsImpl(double x, double y, double z) implements Rotations {
+
+    @Override
+    public @NotNull RotationsImpl withX(double x) {
+        return new RotationsImpl(x, y, z);
+    }
+
+    @Override
+    public @NotNull RotationsImpl withY(double y) {
+        return new RotationsImpl(x, y, z);
+    }
+
+    @Override
+    public @NotNull RotationsImpl withZ(double z) {
+        return new RotationsImpl(x, y, z);
+    }
+
+    @Override
+    public @NotNull RotationsImpl add(double x, double y, double z) {
+        return new RotationsImpl(this.x + x, this.y + y, this.z + z);
+    }
+
+}
diff --git a/src/main/java/org/bukkit/entity/ArmorStand.java b/src/main/java/org/bukkit/entity/ArmorStand.java
index 2ee3814a52945f541e049b621b9552f8ae9e261d..575d58d96445e9ef3711cd6613471d5fe17bbb10 100644
--- a/src/main/java/org/bukkit/entity/ArmorStand.java
+++ b/src/main/java/org/bukkit/entity/ArmorStand.java
@@ -14,7 +14,7 @@ public interface ArmorStand extends LivingEntity {
      *
      * @return the held item
      * @see #getEquipment()
-     * @deprecated prefer {@link EntityEquipment#getItemInHand()}
+     * @deprecated prefer {@link ArmorStand#getItem(EquipmentSlot)} // Paper
      */
     @NotNull
     @Deprecated
@@ -26,7 +26,7 @@ public interface ArmorStand extends LivingEntity {
      * @param item the item to hold
      * @see #getEquipment()
      * @deprecated prefer
-     * {@link EntityEquipment#setItemInHand(org.bukkit.inventory.ItemStack)}
+     * {@link ArmorStand#setItem(EquipmentSlot, ItemStack)} // Paper
      */
     @Deprecated
     void setItemInHand(@Nullable ItemStack item);
@@ -379,5 +379,169 @@ public interface ArmorStand extends LivingEntity {
      * @param tick {@code true} if this armour stand can tick, {@code false} otherwise
      */
     void setCanTick(final boolean tick);
+
+    /**
+     * Returns the item the armor stand has
+     * equip in the given equipment slot
+     *
+     * @param slot the equipment slot to get
+     * @return the ItemStack in the equipment slot
+     * @throws IllegalArgumentException if the slot is invalid for the entity
+     */
+    @NotNull
+    ItemStack getItem(@NotNull final org.bukkit.inventory.EquipmentSlot slot);
+
+    /**
+     * Sets the item the armor stand has
+     * equip in the given equipment slot
+     *
+     * @param slot the equipment slot to set
+     * @param item the item to hold
+     * @throws IllegalArgumentException if the slot is invalid for the entity
+     */
+    void setItem(@NotNull final org.bukkit.inventory.EquipmentSlot slot, @Nullable final ItemStack item);
+
+    /**
+     * Get the list of disabled slots
+     *
+     * @return list of disabled slots
+     */
+    @NotNull
+    java.util.Set<org.bukkit.inventory.EquipmentSlot> getDisabledSlots();
+
+    /**
+     * Set the disabled slots
+     *
+     * This makes it so a player is unable to interact with the Armor Stand to place, remove, or replace an item in the given slot(s)
+     * Note: Once a slot is disabled, the only way to get an item back it to break the armor stand.
+     *
+     * @param slots var-arg array of slots to lock
+     */
+    void setDisabledSlots(@NotNull org.bukkit.inventory.EquipmentSlot... slots);
+
+    /**
+     * Disable specific slots, adding them
+     * to the currently disabled slots
+     *
+     * This makes it so a player is unable to interact with the Armor Stand to place, remove, or replace an item in the given slot(s)
+     * Note: Once a slot is disabled, the only way to get an item back it to break the armor stand.
+     *
+     * @param slots var-arg array of slots to lock
+     */
+    void addDisabledSlots(@NotNull final org.bukkit.inventory.EquipmentSlot... slots);
+
+    /**
+     * Remove the given slots from the disabled
+     * slots list, enabling them.
+     *
+     * This makes it so a player is able to interact with the Armor Stand to place, remove, or replace an item in the given slot(s)
+     *
+     * @param slots var-arg array of slots to unlock
+     */
+    void removeDisabledSlots(@NotNull final org.bukkit.inventory.EquipmentSlot... slots);
+
+    /**
+     * Check if a specific slot is disabled
+     *
+     * @param slot The slot to check
+     * @return {@code true} if the slot is disabled, else {@code false}.
+     */
+    boolean isSlotDisabled(@NotNull org.bukkit.inventory.EquipmentSlot slot);
+
+    /**
+     * Returns the ArmorStand's body rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @return the current rotations
+     */
+    @NotNull io.papermc.paper.math.Rotations getBodyRotations();
+
+    /**
+     * Sets the ArmorStand's body rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @param rotations the current rotations
+     */
+    void setBodyRotations(@NotNull io.papermc.paper.math.Rotations rotations);
+
+    /**
+     * Returns the ArmorStand's left arm rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @return the current rotations
+     */
+    @NotNull io.papermc.paper.math.Rotations getLeftArmRotations();
+
+    /**
+     * Sets the ArmorStand's left arm rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @param rotations the current rotations
+     */
+    void setLeftArmRotations(@NotNull io.papermc.paper.math.Rotations rotations);
+
+    /**
+     * Returns the ArmorStand's right arm rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @return the current rotations
+     */
+    @NotNull io.papermc.paper.math.Rotations getRightArmRotations();
+
+    /**
+     * Sets the ArmorStand's right arm rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @param rotations the current rotations
+     */
+    void setRightArmRotations(@NotNull io.papermc.paper.math.Rotations rotations);
+
+    /**
+     * Returns the ArmorStand's left leg rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @return the current rotations
+     */
+    @NotNull io.papermc.paper.math.Rotations getLeftLegRotations();
+
+    /**
+     * Sets the ArmorStand's left leg rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @param rotations the current rotations
+     */
+    void setLeftLegRotations(@NotNull io.papermc.paper.math.Rotations rotations);
+
+    /**
+     * Returns the ArmorStand's right leg rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @return the current rotations
+     */
+    @NotNull io.papermc.paper.math.Rotations getRightLegRotations();
+
+    /**
+     * Sets the ArmorStand's right leg rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @param rotations the current rotations
+     */
+    void setRightLegRotations(@NotNull io.papermc.paper.math.Rotations rotations);
+
+    /**
+     * Returns the ArmorStand's head rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @return the current rotations
+     */
+    @NotNull io.papermc.paper.math.Rotations getHeadRotations();
+
+    /**
+     * Sets the ArmorStand's head rotations as
+     * {@link io.papermc.paper.math.Rotations}.
+     *
+     * @param rotations the current rotations
+     */
+    void setHeadRotations(@NotNull io.papermc.paper.math.Rotations rotations);
     // Paper end
 }