1 files changed, 8 insertions, 0 deletions

diff --git a/aoc/datastructures.py b/aoc/datastructures.py
index 1f141e2..9c9594a 100644
--- a/aoc/datastructures.py
+++ b/aoc/datastructures.py
@@ -30,6 +30,14 @@ class Coordinate(namedtuple("Coordinate", ["x", "y"])):
             py,
         )
 
+    def in_bounds(self, field: list[list]) -> bool:
+        return not (
+            self.x < 0
+            or self.y < 0
+            or self.y > len(field) - 1
+            or self.x > len(field[0]) - 1
+        )
+
     def neighbours(self, no_diagonal: bool = False) -> Iterator["Coordinate"]:
         if no_diagonal:
             yield self + Coordinate(-1, 0)