feat: implement game of lifev0.1.0

1 files changed, 7 insertions, 0 deletions

diff --git a/src/engine/data/vector2.cpp b/src/engine/data/vector2.cpp
index 0f203d0..cb81947 100644
--- a/src/engine/data/vector2.cpp
+++ b/src/engine/data/vector2.cpp
@@ -2,6 +2,8 @@
 
 #include "util/hash.hpp"
 
+#include <tuple>
+
 auto Vector2::get_x() const noexcept -> Vector2::Value
 {
 	return _x;
@@ -79,6 +81,11 @@ auto Vector2::operator==(const Vector2 &rhs) const noexcept -> bool
 	return _x == rhs._x && _y == rhs._y;
 }
 
+auto Vector2::operator<(const Vector2 &rhs) const noexcept -> bool
+{
+	return std::tie(_x, _y) < std::tie(rhs._x, rhs._y);
+}
+
 auto Vector2Hasher::operator()(const Vector2 &vector2) const noexcept -> std::size_t
 {
 	std::size_t result_hash = 0;