add node class

src/Node.py

@@ -0,0 +1,11 @@
+from __future__ import annotations
+
+from pygame import event
+
+
+class Node:
+    def __init__(self, x: int, y: int, parent: Node = None, action: event = None):
+        self.x = x
+        self.y = y
+        self.parent = parent
+        self.action = action