from __future__ import annotations

class Vec2:

    def __init__(self, x: int, y: int) -> None:
        self.x = x
        self.y = y

    def __add__(self, other: 'Vec2') -> 'Vec2':
        return Vec2(self.x + other.x, self.y + other.y)

    def __eq__(self, other: object) -> bool:
        match other:
            case Vec2(): return self.x == other.x and self.y == other.y
            case _: return False

    def neg(self) -> 'Vec2':
        return Vec2(-self.x, -self.y)

    def toString(self) -> str:
        return f"({self.x}, {self.y})"

right: Vec2 = Vec2(1, 0)
up: Vec2    = Vec2(0, -1)
left: Vec2  = Vec2(-1, 0)
down: Vec2  = Vec2(0, 1)