Particle.py/main.py

import pygame
import random
from particle import Particle

pygame.init()

# Set up display and clock.
screen = pygame.display.set_mode((800, 600))
pygame.display.set_caption("Particle Test")
clock = pygame.time.Clock()

particles = []

running = True
while running:
    dt = clock.tick(60) / 1000.0  # Delta time in seconds.

    # Event loop: quit on window close or spawn new particles on mouse click.
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.MOUSEBUTTONDOWN:
            # Create several particles at the mouse position.
            for _ in range(10):
                pos = pygame.mouse.get_pos()
                vel = (random.uniform(-100, 100), random.uniform(-100, 100))
                p = Particle(
                    pos=pos,
                    vel=vel,
                    acceleration=(0, 0),
                    lifetime=2.0,
                    decay_rate=1,
                    color=(
                        random.randint(100, 255),
                        random.randint(100, 255),
                        random.randint(100, 255)
                    ),
                    size=5,
                    size_decay=2,
                    glow=True,
                    glow_intensity=1.0,
                    friction=0.1,
                    gravity=50,
                    bounce=True,
                    bounce_damping=0.7,
                    random_spread=10,
                    spin=0,
                    spin_rate=random.uniform(-180, 180),
                    spin_decay=0.5,
                    trail=True,
                    trail_length=15,
                    fade=True,
                    shape='circle'
                )
                particles.append(p)

    # Clear the screen.
    screen.fill((0, 0, 0))

    # Update and draw each particle.
    for particle in particles[:]:
        particle.update(dt, screen.get_rect())
        particle.draw(screen)
        if particle.is_dead():
            particles.remove(particle)

    pygame.display.flip()

pygame.quit()