dot.py

import pygame

class Dot:
    def __init__(self,position:tuple, color:tuple, radius:int) -> None:
        super().__init__()
        self.position_x, self.position_y = position
        self.position = position
        self.radius = radius

        self.color = color
        self.defaut_color = color
        self.seleced_color = (0,255,0)
        self.over_color = (255,0,0)

        self.over = False
        self.on_focus = False


    def toggle_over_state(self) -> None:
        self.over = not self.over 

    def set_over_color(self) -> None:
        self.color = self.over_color

    def set_seleced_color(self) -> None:
        self.color =  self.seleced_color

    def set_defaut_color(self) -> None:
        self.color = self.defaut_color  

    def set_position(self, position) -> None:
        self.position = position 
        self.position_x,self.position_y =  self.position 

    def is_on_focus(self, position) -> bool:
        deltaX = (self.position_x - position[0]) ** 2
        deltaY = (self.position_y - position[1]) ** 2

        self.on_focus = self.radius > (deltaX + deltaY) ** 0.5

    def update(self, surface, mouse_position,show_dots):
        if show_dots:pygame.draw.circle(surface, self.color,(self.position), self.radius)
        self.is_on_focus(mouse_position)