scoreboard.py

import pygame.font
from pygame.sprite import Group

from ship import Ship

class Scoreboard():
		"""A class to report scoring information."""
		def __init__(self, ai_setting, screen, stats):
			"""Initialize scorekeeping settings."""
			self.screen = screen
			self.screen_rect = screen.get_rect()
			self.ai_setting = ai_setting
			self.stats = stats
			
			# Font setting for scoring information.
			self.text_color = (30, 30, 30)
			self.font = pygame.font.SysFont(None, 48)
			
			# Prepare the initial score images.
			self.prep_score()
			self.prep_high_score()
			self.prep_level()
			self.prep_ships()
			
		def prep_score(self):
			"""Turn the score into a rendered image."""
			rounded_score = int(round(self.stats.score, -1))
			score_str = "{:,}".format(rounded_score)
			self.score_image = self.font.render(score_str, True, self.text_color, self.ai_setting.bg_color)
			
			# Display the score at top right of the screen.
			self.score_rect = self.score_image.get_rect()
			self.score_rect.right = self.screen_rect.right - 20
			self.score_rect.top = 20
			
		def show_score(self):
			"""Draw score on the screen."""
			self.screen.blit(self.score_image, self.score_rect)
			self.screen.blit(self.high_score_image, self.high_score_rect)
			self.screen.blit(self.level_image, self.level_rect)
			# Draw ships.
			self.ships.draw(self.screen)
			
		def prep_high_score(self):
			"""Turn the high score into rendered image."""
			high_score = int(round(self.stats.high_score, -1))
			high_score_str = "{:,}".format(high_score)
			self.high_score_image = self.font.render(high_score_str, True, self.text_color, self.ai_setting.bg_color)
			
			# Center high score at the top of the screen
			self.high_score_rect = self.high_score_image.get_rect()
			self.high_score_rect.centerx = self.screen_rect.centerx
			self.high_score_rect.top = self.screen_rect.top
			
		def prep_level(self):
			"""Turn the level into rendered image."""
			level_str = str(self.stats.level)
			self.level_image = self.font.render(level_str, True, self.text_color, self.ai_setting.bg_color)
			
			# Display the levelbelow the score.
			self.level_rect = self.level_image.get_rect()
			self.level_rect.right = self.score_rect.right
			self.level_rect.top = self.score_rect.bottom + 10
			
		def prep_ships(self):
			"""Show hoow many ships are left."""
			self.ships = Group()
			for ship_number in range(self.stats.ships_left):
				ship = Ship(self.ai_setting, self.screen)
				ship.rect.x = 10 + ship_number * ship.rect.width
				ship.rect.y = 10
				self.ships.add(ship)