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particles.py
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particles.py
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import pygame
from constants import GRAVITY, all_sprites, particles
from functions import load_image
import random
from initialization import screen_rect
class Particle(pygame.sprite.Sprite):
many_stars = [load_image("star.png")]
for scale in (5, 10, 20):
many_stars.append(pygame.transform.scale(many_stars[0], (scale, scale)))
many_hearts = [load_image("heart.png")]
for scale in (5, 10, 20):
many_hearts.append(pygame.transform.scale(many_hearts[0], (scale, scale)))
def __init__(self, pos, dx, dy, name):
super().__init__(all_sprites)
self.add(particles)
if name == 'star':
self.image = random.choice(self.many_stars)
elif name == 'heart':
self.image = random.choice(self.many_hearts)
self.rect = self.image.get_rect()
self.velocity = [dx, dy]
self.rect.x, self.rect.y = pos
self.gravity = GRAVITY
def update(self):
self.velocity[1] += self.gravity
self.rect.x += self.velocity[0]
self.rect.y += self.velocity[1]
if not self.rect.colliderect(screen_rect):
self.kill()
def create_particles(position, item):
particle_count = 20
numbers = range(-5, 6)
if item == 'star':
for _ in range(particle_count):
Particle(position, random.choice(numbers), random.choice(
numbers), 'star')
else:
for _ in range(particle_count):
Particle(position, random.choice(numbers), random.choice(
numbers), 'heart')