From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Mon, 18 Jun 2018 00:41:46 -0500
Subject: [PATCH] Add "getNearbyXXX" methods to Location


diff --git a/src/main/java/org/bukkit/Location.java b/src/main/java/org/bukkit/Location.java
index f61bf28afe99f83cdac6490bcc114509698d0aad..4cf22afc3c1f1cc19b6e5350043431215908a612 100644
--- a/src/main/java/org/bukkit/Location.java
+++ b/src/main/java/org/bukkit/Location.java
@@ -12,6 +12,15 @@ import org.bukkit.util.Vector;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+// Paper start
+import java.util.Collection;
+import java.util.Collections;
+import java.util.function.Predicate;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+// Paper end
+
 /**
  * Represents a 3-dimensional position in a world.
  * <br>
@@ -558,6 +567,248 @@ public class Location implements Cloneable, ConfigurationSerializable {
         centerLoc.setZ(getBlockZ() + 0.5);
         return centerLoc;
     }
+
+    /**
+     * Returns a list of entities within a bounding box centered around a Location.
+     *
+     * Some implementations may impose artificial restrictions on the size of the search bounding box.
+     *
+     * @param x 1/2 the size of the box along x axis
+     * @param y 1/2 the size of the box along y axis
+     * @param z 1/2 the size of the box along z axis
+     * @return the collection of entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<Entity> getNearbyEntities(double x, double y, double z) {
+        World world = this.getWorld();
+        if (world == null) {
+            throw new IllegalArgumentException("Location has no world");
+        }
+        return world.getNearbyEntities(this, x, y, z);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param radius X Radius
+     * @return the collection of entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<LivingEntity> getNearbyLivingEntities(double radius) {
+        return getNearbyEntitiesByType(org.bukkit.entity.LivingEntity.class, radius, radius, radius);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param xzRadius X/Z Radius
+     * @param yRadius Y Radius
+     * @return the collection of living entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<LivingEntity> getNearbyLivingEntities(double xzRadius, double yRadius) {
+        return getNearbyEntitiesByType(org.bukkit.entity.LivingEntity.class, xzRadius, yRadius, xzRadius);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param xRadius X Radius
+     * @param yRadius Y Radius
+     * @param zRadius Z radius
+     * @return the collection of living entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<LivingEntity> getNearbyLivingEntities(double xRadius, double yRadius, double zRadius) {
+        return getNearbyEntitiesByType(org.bukkit.entity.LivingEntity.class, xRadius, yRadius, zRadius);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param radius Radius
+     * @param predicate a predicate used to filter results
+     * @return the collection of living entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<LivingEntity> getNearbyLivingEntities(double radius, @Nullable Predicate<LivingEntity> predicate) {
+        return getNearbyEntitiesByType(org.bukkit.entity.LivingEntity.class, radius, radius, radius, predicate);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param xzRadius X/Z Radius
+     * @param yRadius Y Radius
+     * @param predicate a predicate used to filter results
+     * @return the collection of living entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<LivingEntity> getNearbyLivingEntities(double xzRadius, double yRadius, @Nullable Predicate<LivingEntity> predicate) {
+        return getNearbyEntitiesByType(org.bukkit.entity.LivingEntity.class, xzRadius, yRadius, xzRadius, predicate);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param xRadius X Radius
+     * @param yRadius Y Radius
+     * @param zRadius Z radius
+     * @param predicate a predicate used to filter results
+     * @return the collection of living entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<LivingEntity> getNearbyLivingEntities(double xRadius, double yRadius, double zRadius, @Nullable Predicate<LivingEntity> predicate) {
+        return getNearbyEntitiesByType(org.bukkit.entity.LivingEntity.class, xRadius, yRadius, zRadius, predicate);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param radius X/Y/Z Radius
+     * @return the collection of players near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<Player> getNearbyPlayers(double radius) {
+        return getNearbyEntitiesByType(org.bukkit.entity.Player.class, radius, radius, radius);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param xzRadius X/Z Radius
+     * @param yRadius Y Radius
+     * @return the collection of players near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<Player> getNearbyPlayers(double xzRadius, double yRadius) {
+        return getNearbyEntitiesByType(org.bukkit.entity.Player.class, xzRadius, yRadius, xzRadius);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param xRadius X Radius
+     * @param yRadius Y Radius
+     * @param zRadius Z Radius
+     * @return the collection of players near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<Player> getNearbyPlayers(double xRadius, double yRadius, double zRadius) {
+        return getNearbyEntitiesByType(org.bukkit.entity.Player.class, xRadius, yRadius, zRadius);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param radius X/Y/Z Radius
+     * @param predicate a predicate used to filter results
+     * @return the collection of players near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<Player> getNearbyPlayers(double radius, @Nullable Predicate<Player> predicate) {
+        return getNearbyEntitiesByType(org.bukkit.entity.Player.class, radius, radius, radius, predicate);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param xzRadius X/Z Radius
+     * @param yRadius Y Radius
+     * @param predicate a predicate used to filter results
+     * @return the collection of players near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<Player> getNearbyPlayers(double xzRadius, double yRadius, @Nullable Predicate<Player> predicate) {
+        return getNearbyEntitiesByType(org.bukkit.entity.Player.class, xzRadius, yRadius, xzRadius, predicate);
+    }
+
+    /**
+     * Gets nearby players within the specified radius (bounding box)
+     * @param xRadius X Radius
+     * @param yRadius Y Radius
+     * @param zRadius Z Radius
+     * @param predicate a predicate used to filter results
+     * @return the collection of players near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public Collection<Player> getNearbyPlayers(double xRadius, double yRadius, double zRadius, @Nullable Predicate<Player> predicate) {
+        return getNearbyEntitiesByType(org.bukkit.entity.Player.class, xRadius, yRadius, zRadius, predicate);
+    }
+
+    /**
+     * Gets all nearby entities of the specified type, within the specified radius (bounding box)
+     * @param clazz Type to filter by
+     * @param radius X/Y/Z radius to search within
+     * @param <T> the entity type
+     * @return the collection of entities of type clazz near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public <T extends Entity> Collection<T> getNearbyEntitiesByType(@Nullable Class<? extends T> clazz, double radius) {
+        return getNearbyEntitiesByType(clazz, radius, radius, radius, null);
+    }
+
+    /**
+     * Gets all nearby entities of the specified type, within the specified radius, with x and x radius matching (bounding box)
+     * @param clazz Type to filter by
+     * @param xzRadius X/Z radius to search within
+     * @param yRadius Y radius to search within
+     * @param <T> the entity type
+     * @return the collection of entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public <T extends Entity> Collection<T> getNearbyEntitiesByType(@Nullable Class<? extends T> clazz, double xzRadius, double yRadius) {
+        return getNearbyEntitiesByType(clazz, xzRadius, yRadius, xzRadius, null);
+    }
+
+    /**
+     * Gets all nearby entities of the specified type, within the specified radius (bounding box)
+     * @param clazz Type to filter by
+     * @param xRadius X Radius
+     * @param yRadius Y Radius
+     * @param zRadius Z Radius
+     * @param <T> the entity type
+     * @return the collection of entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public <T extends Entity> Collection<T> getNearbyEntitiesByType(@Nullable Class<? extends T> clazz, double xRadius, double yRadius, double zRadius) {
+        return getNearbyEntitiesByType(clazz, xRadius, yRadius, zRadius, null);
+    }
+
+    /**
+     * Gets all nearby entities of the specified type, within the specified radius (bounding box)
+     * @param clazz Type to filter by
+     * @param radius X/Y/Z radius to search within
+     * @param predicate a predicate used to filter results
+     * @param <T> the entity type
+     * @return the collection of entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public <T extends Entity> Collection<T> getNearbyEntitiesByType(@Nullable Class<? extends T> clazz, double radius, @Nullable Predicate<T> predicate) {
+        return getNearbyEntitiesByType(clazz, radius, radius, radius, predicate);
+    }
+
+    /**
+     * Gets all nearby entities of the specified type, within the specified radius, with x and x radius matching (bounding box)
+     * @param clazz Type to filter by
+     * @param xzRadius X/Z radius to search within
+     * @param yRadius Y radius to search within
+     * @param predicate a predicate used to filter results
+     * @param <T> the entity type
+     * @return the collection of entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public <T extends Entity> Collection<T> getNearbyEntitiesByType(@Nullable Class<? extends T> clazz, double xzRadius, double yRadius, @Nullable Predicate<T> predicate) {
+        return getNearbyEntitiesByType(clazz, xzRadius, yRadius, xzRadius, predicate);
+    }
+
+    /**
+     * Gets all nearby entities of the specified type, within the specified radius (bounding box)
+     * @param clazz Type to filter by
+     * @param xRadius X Radius
+     * @param yRadius Y Radius
+     * @param zRadius Z Radius
+     * @param predicate a predicate used to filter results
+     * @param <T> the entity type
+     * @return the collection of entities near location. This will always be a non-null collection.
+     */
+    @NotNull
+    public <T extends Entity> Collection<T> getNearbyEntitiesByType(@Nullable Class<? extends Entity> clazz, double xRadius, double yRadius, double zRadius, @Nullable Predicate<T> predicate) {
+        World world = this.getWorld();
+        if (world == null) {
+            throw new IllegalArgumentException("Location has no world");
+        }
+        return world.getNearbyEntitiesByType(clazz, this, xRadius, yRadius, zRadius, predicate);
+    }
     // Paper end
     @Override
     public boolean equals(Object obj) {