Merge pull request #4 from baurt/add-point

add point to grid.

project/src/{{package_name}}/shared/grid.py

@@ -0,0 +1,50 @@
+from dataclasses import dataclass
+from typing import Literal, Self
+
+
+@dataclass(frozen=True)
+class Point:
+    x: int
+    y: int
+
+    def move(self, other_x: int, other_y: int) -> Self:
+        return Point(self.x + other_x, self.y + other_y)
+
+    def __add__(self, other: Self) -> Self:
+        return Point(self.x + other.x, self.y + other.y)
+
+    def __sub__(self, other: Self) -> Self:
+        return Point(self.x - other.x, self.y - other.y)
+
+    def adjacent_dist(self, other: Self) -> int:
+        return max(abs(self.x - other.x), abs(self.y - other.y))
+
+    def manhattan_distance(self, other: Self) -> int:
+        return abs(self.x - other.x) + abs(self.y - other.y)
+
+    def dx(self, other: Self) -> int:
+        return self.x - other.x
+
+    def dy(self, other: Self) -> int:
+        return self.y - other.y
+
+    @property
+    def coords(self) -> tuple[int, int]:
+        return (self.x, self.y)
+
+    def get_adjacent(self) -> tuple[Self, Self, Self, Self]:
+        return (
+            Point(self.x + 1, self.y),
+            Point(self.x - 1, self.y),
+            Point(self.x, self.y + 1),
+            Point(self.x, self.y - 1),
+        )
+
+
+@dataclass
+class Movement:
+    direction: Literal["U"] | Literal["D"] | Literal["L"] | Literal["R"]
+    amount: int
+
+
+DIRECTIONS = {"U": Point(0, 1), "D": Point(0, -1), "L": Point(-1, 0), "R": Point(1, 0)}