Add hashing for coordinate class

rozukke · Oct 29, 2024 · 102c2a9 · 102c2a9
1 parent bc94f6b
commit 102c2a9
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Showing 2 changed files with 13 additions and 0 deletions.
diff --git a/include/mcpp/util.h b/include/mcpp/util.h
@@ -68,6 +68,14 @@ struct Coordinate {
      */
     Coordinate operator-(const Coordinate& obj) const;
 
+    /**
+     * @brief Implements hash algorithm for Coordinate object using XOR.
+     *
+     * @param obj The Coordinate object to hash.
+     * @return Hash of Coordinate object.
+     */
+    std::size_t operator()(const Coordinate& obj) const;
+
     /**
      * @brief Creates a copy of the Coordinate object.
      *

diff --git a/src/util.cpp b/src/util.cpp
@@ -41,6 +41,11 @@ Coordinate Coordinate::operator-(const Coordinate& obj) const {
     return result;
 }
 
+std::size_t Coordinate::operator()(const Coordinate& obj) const {
+    return std::hash<int>()(obj.x) ^ std::hash<int>()(obj.y) ^
+           std::hash<int>()(obj.z);
+}
+
 Coordinate Coordinate::clone() const {
     return Coordinate(this->x, this->y, this->z);
 }