SuperMarioBros/pythonProject1/source/states/main_menu.py

# 主菜单
import pygame
from .. import setup
from .. import tools
from .. import constants as C
from ..components import info

class MainMenu:
    def __init__(self):
        game_info = {
            'score':0,
            'coin':0,
            'lives':3,
            'player_state':'small'
        }
        self.start(game_info)





    def start(self,game_info):      # 使其可以重复调用实现重置效果
        self.game_info = game_info
        self.setup_background()  # 设置底图
        self.setup_player()  # 设置玩家
        self.setup_cursor()  # 设置光标
        self.info = info.Info('main_menu',self.game_info)
        self.finished = False
        self.next = 'load_screen'

    def setup_background(self):
        self.background = setup.GRAPHICS['level_1']
        self.background_rect = self.background.get_rect()
        self.background = pygame.transform.scale(self.background,(int(self.background_rect.width * C.BG_MULTI),
                                                                       int(self.background_rect.height * C.BG_MULTI)))
        self.viewport = setup.SCREEN.get_rect()
        self.caption = tools.get_image(setup.GRAPHICS['title_screen'],1,60,176,88,(255,0,220),C.BG_MULTI)


    def setup_player(self):
        self.player_image = tools.get_image(setup.GRAPHICS['mario_bros'],178,32,12,16,(0,0,0),C.PLAYER_MULTI)

    def setup_cursor(self):
        self.cursor = pygame.sprite.Sprite()
        self.cursor.image = tools.get_image(setup.GRAPHICS['item_objects'], 24, 160, 8, 8, (0, 0, 0), C.PLAYER_MULTI)
        rect = self.cursor.image.get_rect()
        rect.x,rect.y = (220,360)
        self.cursor.rect = rect
        self.cursor.state = '1p'  # 状态机

    def update_cursor(self,keys):
        if keys[pygame.K_UP]:
            self.cursor.state = '1p'
            self.cursor.rect.y = 360
        elif keys[pygame.K_DOWN]:
            self.cursor.state = '2p'
            self.cursor.rect.y = 405
        elif keys[pygame.K_RETURN]:
            self.reset_game_info()    # 按下回车重置
            if self.cursor.state == '1p':
                self.finished = True
            elif self.cursor.state == '2p':
                self.finished = True

    def update(self, surface,keys):

        self.update_cursor(keys)

        surface.blit(self.background, self.viewport)
        surface.blit(self.caption,(170,100))
        surface.blit(self.player_image,(110,490))
        surface.blit(self.cursor.image,self.cursor.rect)

        self.info.update()
        self.info.draw(surface)

    def reset_game_info(self):   # 按下回车重置
        self.game_info.update({
            'score':0,
            'coin':0,
            'lives':3,
            'player_state':'small'
        })