шарики

import math
import random
import pygame
import sys
class Game:
    def __init__(self, number):
        color_list = ["WHITE", "RED", "GREEN", "BLUE", "DARKGRAY", "PUPLE"]
        self.list_class_instance = []
        for numb in range(number):
            x0 = random.randint(61,1080-61)
            y0 = random.randint(61,720-61)
            self.list_class_instance.append(Boll(x0, y0, color_list[random.randint(0,len(color_list)-1)] ))
        #--------------------------------------------------------------------------------------------------
        pygame.init()

        screen = pygame.display.set_mode((1080, 720))
        clock = pygame.time.Clock()

        while True:
            screen.fill((78, 74, 59))
            for lsi in self.list_class_instance:
                pygame.draw.circle(screen, lsi.color, lsi.pos(), lsi.radius, width=0)
                if lsi.y <= lsi.radius+1 :
                    lsi.setVector("y")
                if lsi.y >= 720-lsi.radius-1 :
                    lsi.setVector("y")
                if lsi.x <= lsi.radius+1  :
                    lsi.setVector("x")
                if lsi.x >= 1080-lsi.radius-1 :
                    lsi.setVector("x")
                lsi.x += lsi.vector()[0]
                lsi.y += lsi.vector()[1]
            self.exam()
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    pygame.quit()
                    sys.exit()
            pygame.display.flip()
            clock.tick(60)

    def exam(self):
        self.dell_Boll()
        for i in range(len(self.list_class_instance)):
            for j in range(len(self.list_class_instance)):
                bool = False
                if self.list_class_instance[i] != self.list_class_instance[j]:
                    crossing_distance = self.list_class_instance[i].radius + self.list_class_instance[j].radius
                    if self.list_class_instance[i].pos()[0] == self.list_class_instance[j].pos()[0]:
                        distance = abs(self.list_class_instance[i].pos()[1] - self.list_class_instance[j].pos()[1])
                        if distance == self.list_class_instance[i].radius + self.list_class_instance[j].radius:
                            bool = True
                    elif self.list_class_instance[i].pos()[1] == self.list_class_instance[j].pos()[1]:
                        distance = abs(self.list_class_instance[i].pos()[0] - self.list_class_instance[j].pos()[0])
                        if distance == crossing_distance:
                            bool = True
                    else:
                        x = self.list_class_instance[i].pos()[0] - self.list_class_instance[j].pos()[0]
                        y = self.list_class_instance[i].pos()[1] - self.list_class_instance[j].pos()[1]
                        distance = round((x ** 2 + y ** 2) ** 0.5)
                        if distance <= crossing_distance:
                            bool = True
                    if bool:
                        self.list_class_instance[i].setRadiusminus()
                        self.list_class_instance[j].setRadiusminus()

    def dell_Boll(self):
        for lsi in self.list_class_instance:
            if lsi.radius <= 1:
                self.list_class_instance.remove(lsi)
                del lsi

class Boll:
    def __init__(self, x0=360, y0=540, color_key="RED", radius=60):
        self.starts_x = [-2, -1, 1, 2]
        self.starts_y = -2
        random.shuffle(self.starts_x)
        self.radius = radius
        self.x = x0
        self.y = y0
        color_dict = { "WHITE" : (255, 255, 255),
            "RED" : (220, 0, 0), "GREEN" : (0, 220, 0),
            "BLUE" : (0, 0, 225), "DARKGRAY" : (40, 40, 40),
            "PUPLE" : (120, 0, 120) }
        self.color = (color_dict[color_key])

    def vector(self):
        return (self.starts_x[0], self.starts_y)

    def setVector(self, x_y):
        if x_y == "y":
            self.starts_y =- self.starts_y
        if x_y == "x":
            self.starts_x[0] =- self.starts_x[0]

    def pos(self):
        return (self.x, self.y)

    def setRadiusminus(self):
        self.radius -= 10

    def setX(self, x):
        self.x = x

    def setY(self, y):
        self.y = y


Game(100)