scoreboard.py

import json
import pygame.font
from pygame.sprite import Group

from ship import Ship

class Scoreboard():
    """A class to report the player's score."""

    def __init__(self, ai_settings, screen, stats):
        """Initialize scorekeeping attributes."""
        self.screen = screen
        self.screen_rect = screen.get_rect()
        self.ai_settings = ai_settings
        self.stats = stats

        # Font settings for scoring info.
        self.text_color = (0, 255, 0)
        self.font = pygame.font.Font('fonts/Acme-Regular.ttf', 48)

        # Prepare the initial score image.
        self.prep_score()
        self.prep_highscore()
        self.prep_level()
        self.prep_ships()

    def prep_ships(self):
        """Show how many ships player has left."""
        self.ships = Group()
        for ship_number in range(self.stats.ships_left):
            ship = Ship(self.ai_settings, self.screen)
            ship.rect.x = 10 + ship_number * ship.rect.width
            ship.rect.y = 10
            self.ships.add(ship)

    def prep_score(self):
        """Turn the score into a rendered image."""
        rounded_score = int(round(self.stats.score, -1))
        score_str = "Score: {:,}".format(rounded_score)
        self.score_image = self.font.render(score_str, True, self.text_color)

        # Display the score at the top right corner of the screen.
        self.score_rect = self.score_image.get_rect()
        self.score_rect.right = self.screen_rect.right
        self.score_rect.top = self.screen_rect.top

    def prep_highscore(self):
        """Turn the high score into a rendered image."""
        highscore_file = open("highscore.txt", "r")
        highscore = int(highscore_file.read())
        highscore_str = "High Score: {:,}".format(highscore)
        self.highscore_image = self.font.render(highscore_str, True, self.text_color)

        # Center the high score at the top of the screen
        self.highscore_rect = self.highscore_image.get_rect()
        self.highscore_rect.centerx = self.screen_rect.centerx
        self.highscore_rect.top = self.screen_rect.top

    def save_highscore(self):
        """Save high score to a text file"""
        highscore = int(round(self.stats.highscore, -1))
        highscore_file = open("highscore.txt", "w")
        highscore_file.write(str(highscore))
        highscore_file.close()

    def show_score(self):
        """Draw scores and ships to the screen."""
        self.screen.blit(self.score_image, self.score_rect)
        self.screen.blit(self.highscore_image, self.highscore_rect)
        self.screen.blit(self.level_image, self.level_rect)
        self.ships.draw(self.screen)

    def prep_level(self):
        """Turn the level into a rendered image."""
        level_str = "Level " + str(self.stats.level)
        self.level_image = self.font.render(level_str, True, self.text_color)

        # Position the level below 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