coordinates are essentially just tuples, so let's treat them as such. Double the speed for no cost :)

tools/coordinate.py

@@ -1,9 +1,8 @@
 from __future__ import annotations
-from dataclasses import dataclass
 from enum import Enum
 from math import gcd, sqrt, inf, atan2, degrees
 from .math import round_half_up
-from typing import Union, List, Optional
+from typing import Union, List
 
 
 class DistanceAlgorithm(Enum):
@@ -14,11 +13,24 @@ class DistanceAlgorithm(Enum):
     CHESSBOARD = 2
 
 
-@dataclass(frozen=True)
-class Coordinate:
-    x: int
-    y: int
-    z: Optional[int] = None
+class Coordinate(tuple):
+    def __new__(cls, x: int, y: int, z: int = None) -> Coordinate:
+        return tuple.__new__(Coordinate, (x, y, z))
+
+    @property
+    def x(self):
+        return self[0]
+
+    @property
+    def y(self):
+        return self[1]
+
+    @property
+    def z(self):
+        return self[2]
+
+    def is3D(self) -> bool:
+        return self.z is not None
 
     def getDistanceTo(self, target: Coordinate, algorithm: DistanceAlgorithm = DistanceAlgorithm.EUCLIDEAN,
                       includeDiagonals: bool = False) -> Union[int, float]:
@@ -156,7 +168,11 @@ class Coordinate:
             step_x = diff.x // steps
             step_y = diff.y // steps
             step_z = diff.z // steps
-            return [self.__class__(self.x + step_x * i, self.y + step_y * i, self.z + step_z * i) for i in range(steps + 1)]
+            return [
+                self.__class__(self.x + step_x * i, self.y + step_y * i, self.z + step_z * i)
+                for i
+                in range(steps + 1)
+            ]
 
     def reverse(self) -> Coordinate:
         if self.z is None:
@@ -191,11 +207,6 @@ class Coordinate:
     def __truediv__(self, other):
         return self // other
 
-    def __eq__(self, other):
-        if not isinstance(other, Coordinate):
-            return False
-        return self.x == other.x and self.y == other.y and self.z == other.z
-
     def __gt__(self, other):
         if self.z is None:
             return self.x > other.x and self.y > other.y