Expand Location Manipulation API

Adds set(x, y, z), add(base, x, y, z), subtract(base, x, y, z);

paper-api/src/main/java/org/bukkit/Location.java

@@ -545,6 +545,59 @@ public class Location implements Cloneable, ConfigurationSerializable, io.paperm
 
     public boolean isChunkLoaded() { return this.getWorld().isChunkLoaded(locToBlock(x) >> 4, locToBlock(z) >> 4); } // Paper
 
+    // Paper start - expand location manipulation API
+
+    /**
+     * Sets the position of this Location and returns itself
+     * <p>
+     * This mutates this object, clone first.
+     *
+     * @param x X coordinate
+     * @param y Y coordinate
+     * @param z Z coordinate
+     * @return self (not cloned)
+     */
+    @NotNull
+    public Location set(double x, double y, double z) {
+        this.x = x;
+        this.y = y;
+        this.z = z;
+        return this;
+    }
+
+    /**
+     * Takes the x/y/z from base and adds the specified x/y/z to it and returns self
+     * <p>
+     * This mutates this object, clone first.
+     *
+     * @param base The base coordinate to modify
+     * @param x X coordinate to add to base
+     * @param y Y coordinate to add to base
+     * @param z Z coordinate to add to base
+     * @return self (not cloned)
+     */
+    @NotNull
+    public Location add(@NotNull Location base, double x, double y, double z) {
+        return this.set(base.x + x, base.y + y, base.z + z);
+    }
+
+    /**
+     * Takes the x/y/z from base and subtracts the specified x/y/z to it and returns self
+     * <p>
+     * This mutates this object, clone first.
+     *
+     * @param base The base coordinate to modify
+     * @param x X coordinate to subtract from base
+     * @param y Y coordinate to subtract from base
+     * @param z Z coordinate to subtract from base
+     * @return self (not cloned)
+     */
+    @NotNull
+    public Location subtract(@NotNull Location base, double x, double y, double z) {
+        return this.set(base.x - x, base.y - y, base.z - z);
+    }
+    // Paper end - expand location manipulation API
+
     // Paper start - expand Location API
     /**
      * @return A new location where X/Y/Z are on the Block location (integer value of X/Y/Z)