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bullet.py
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bullet.py
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import pygame
from pygame.sprite import Sprite
class Bullet(Sprite):
"""A class of bullet management for a team of spaceships"""
def __init__(self, ai_settings, screen, ship):
"""Create a bullet object where the ship is located"""
super(Bullet, self).__init__()
self.screen = screen
# Create a rectangle representing the bullet at (0.0) and set it in the correct position
self.rect = pygame.Rect(0, 0, ai_settings.bullet_width,
ai_settings.bullet_height)
self.rect.centerx = ship.rect.centerx + 6
self.rect.top = ship.rect.top
# Store bullet position in decimal
self.y = float(self.rect.y)
self.color = ai_settings.bullet_color
self.speed_factor = ai_settings.bullet_speed_factor
def update(self):
"""Move the bullet up"""
# Update the small value indicating the bullet position
self.y -= self.speed_factor
# Update rectde position of bullet
self.rect.y = self.y
def draw_bullet(self):
"""Draw bullets on the screen"""
pygame.draw.rect(self.screen, self.color, self.rect)