.gitignore

import pygame
import random
import math

# --- Constants ---
WIDTH, HEIGHT = 800, 600
GRAVITY = 0.5
FRICTION = 0.99
NUM_OBJECTS = 10

# --- Object Class ---
class Particle:
    def __init__(self):
        self.radius = random.randint(10, 30)
        self.x = random.uniform(self.radius, WIDTH - self.radius)
        self.y = random.uniform(self.radius, HEIGHT - self.radius)
        self.vx = random.uniform(-5, 5)
        self.vy = random.uniform(-5, 5)
        self.color = random.choice([(255, 0, 0), (0, 255, 0), (0, 0, 255)])

    def update(self):
        self.vy += GRAVITY
        self.vx *= FRICTION
        self.vy *= FRICTION
        self.x += self.vx
        self.y += self.vy

        # Bounce off walls
        if self.x <= self.radius or self.x >= WIDTH - self.radius:
            self.vx *= -1
        if self.y >= HEIGHT - self.radius:
            self.vy *= -0.9  # bounce
            self.y = HEIGHT - self.radius

    def draw(self, screen):
        pygame.draw.circle(screen, self.color, (int(self.x), int(self.y)), self.radius)

# --- Main Loop ---
pygame.init()
screen = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Random Physics Engine")

particles = [Particle() for _ in range(NUM_OBJECTS)]
clock = pygame.time.Clock()

running = True
while running:
    screen.fill((30, 30, 30))

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    for p in particles:
        p.update()
        p.draw(screen)

    pygame.display.flip()
    clock.tick(60)

pygame.quit()