基于Python实现超级玛丽游戏的示例代码

目录

• 效果演示
• 基础源码
• 1.基础设置（tools部分）
• 2.设置背景音乐以及场景中的文字（setup部分）
• 3.设置游戏规则(load_screen)
• 4.设置游戏内菜单等（main_menu）
• 5.main()
• 6.调用以上函数实现

效果演示

基础源码

1.基础设置（tools部分）

这个部分设置马里奥以及游戏中蘑菇等怪的的移动设置。

import os
import pygame as pg

keybinding = {
    'action':pg.K_s,
    'jump':pg.K_a,
    'left':pg.K_LEFT,
    'right':pg.K_RIGHT,
    'down':pg.K_DOWN
}

class Control(object):
    """Control class for entire project. Contains the game loop, and contains
    the event_loop which passes events to States as needed. Logic for flipping
    states is also found here."""
    def __init__(self, caption):
        self.screen = pg.display.get_surface()
        self.done = False
        self.clock = pg.time.Clock()
        self.caption = caption
        self.fps = 60
        self.show_fps = False
        self.current_time = 0.0
        self.keys = pg.key.get_pressed()
        self.state_dict = {}
        self.state_name = None
        self.state = None

    def setup_states(self, state_dict, start_state):
        self.state_dict = state_dict
        self.state_name = start_state
        self.state = self.state_dict[self.state_name]

    def update(self):
        self.current_time = pg.time.get_ticks()
        if self.state.quit:
            self.done = True
        elif self.state.done:
            self.flip_state()
        self.state.update(self.screen, self.keys, self.current_time)

    def flip_state(self):
        previous, self.state_name = self.state_name, self.state.next
        persist = self.state.cleanup()
        self.state = self.state_dict[self.state_name]
        self.state.startup(self.current_time, persist)
        self.state.previous = previous

    def event_loop(self):
        for event in pg.event.get():
            if event.type == pg.QUIT:
                self.done = True
            elif event.type == pg.KEYDOWN:
                self.keys = pg.key.get_pressed()
                self.toggle_show_fps(event.key)
            elif event.type == pg.KEYUP:
                self.keys = pg.key.get_pressed()
            self.state.get_event(event)

    def toggle_show_fps(self, key):
        if key == pg.K_F5:
            self.show_fps = not self.show_fps
            if not self.show_fps:
                pg.display.set_caption(self.caption)

    def main(self):
        """Main loop for entire program"""
        while not self.done:
            self.event_loop()
            self.update()
            pg.display.update()
            self.clock.tick(self.fps)
            if self.show_fps:
                fps = self.clock.get_fps()
                with_fps = "{} - {:.2f} FPS".format(self.caption, fps)
                pg.display.set_caption(with_fps)

class _State(object):
    def __init__(self):
        self.start_time = 0.0
        self.current_time = 0.0
        self.done = False
        self.quit = False
        self.next = None
        self.previous = None
        self.persist = {}

    def get_event(self, event):
        pass

    def startup(self, current_time, persistant):
        self.persist = persistant
        self.start_time = current_time

    def cleanup(self):
        self.done = False
        return self.persist

    def update(self, surface, keys, current_time):
        pass

def load_all_gfx(directory, colorkey=(255,0,255), accept=('.png', 'jpg', 'bmp')):
    graphics = {}
    for pic in os.listdir(directory):
        name, ext = os.path.splitext(pic)
        if ext.lower() in accept:
            img = pg.image.load(os.path.join(directory, pic))
            if img.get_alpha():
                img = img.convert_alpha()
            else:
                img = img.convert()
                img.set_colorkey(colorkey)
            graphics[name]=img
    return graphics

def load_all_music(directory, accept=('.wav', '.mp3', '.ogg', '.mdi')):
    songs = {}
    for song in os.listdir(directory):
        name,ext = os.path.splitext(song)
        if ext.lower() in accept:
            songs[name] = os.path.join(directory, song)
    return songs

def load_all_fonts(directory, accept=('.ttf')):
    return load_all_music(directory, accept)

def load_all_sfx(directory, accept=('.wav','.mpe','.ogg','.mdi')):
    effects = {}
    for fx in os.listdir(directory):
        name, ext = os.path.splitext(fx)
        if ext.lower() in accept:
            effects[name] = pg.mixer.Sound(os.path.join(directory, fx))
    return effects

2.设置背景音乐以及场景中的文字（setup部分）

该部分主要设置场景中的背景音乐，以及字体的显示等设置。

import os
import pygame as pg
from . import tools
from .import constants as c

ORIGINAL_CAPTION = c.ORIGINAL_CAPTION

os.environ['SDL_VIDEO_CENTERED'] = '1'
pg.init()
pg.event.set_allowed([pg.KEYDOWN, pg.KEYUP, pg.QUIT])
pg.display.set_caption(c.ORIGINAL_CAPTION)
SCREEN = pg.display.set_mode(c.SCREEN_SIZE)
SCREEN_RECT = SCREEN.get_rect()

FONTS = tools.load_all_fonts(os.path.join("resources","fonts"))
MUSIC = tools.load_all_music(os.path.join("resources","music"))
GFX   = tools.load_all_gfx(os.path.join("resources","graphics"))
SFX   = tools.load_all_sfx(os.path.join("resources","sound"))

3.设置游戏规则(load_screen)

from .. import setup, tools
from .. import constants as c
from .. import game_sound
from ..components import info

class LoadScreen(tools._State):
    def __init__(self):
        tools._State.__init__(self)

    def startup(self, current_time, persist):
        self.start_time = current_time
        self.persist = persist
        self.game_info = self.persist
        self.next = self.set_next_state()

        info_state = self.set_overhead_info_state()

        self.overhead_info = info.OverheadInfo(self.game_info, info_state)
        self.sound_manager = game_sound.Sound(self.overhead_info)

    def set_next_state(self):
        """Sets the next state"""
        return c.LEVEL1

    def set_overhead_info_state(self):
        """sets the state to send to the overhead info object"""
        return c.LOAD_SCREEN

    def update(self, surface, keys, current_time):
        """Updates the loading screen"""
        if (current_time - self.start_time) < 2400:
            surface.fill(c.BLACK)
            self.overhead_info.update(self.game_info)
            self.overhead_info.draw(surface)

        elif (current_time - self.start_time) < 2600:
            surface.fill(c.BLACK)

        elif (current_time - self.start_time) < 2635:
            surface.fill((106, 150, 252))

        else:
            self.done = True

class GameOver(LoadScreen):
    """A loading screen with Game Over"""
    def __init__(self):
        super(GameOver, self).__init__()

    def set_next_state(self):
        """Sets next state"""
        return c.MAIN_MENU

    def set_overhead_info_state(self):
        """sets the state to send to the overhead info object"""
        return c.GAME_OVER

    def update(self, surface, keys, current_time):
        self.current_time = current_time
        self.sound_manager.update(self.persist, None)

        if (self.current_time - self.start_time) < 7000:
            surface.fill(c.BLACK)
            self.overhead_info.update(self.game_info)
            self.overhead_info.draw(surface)
        elif (self.current_time - self.start_time) < 7200:
            surface.fill(c.BLACK)
        elif (self.current_time - self.start_time) < 7235:
            surface.fill((106, 150, 252))
        else:
            self.done = True

class TimeOut(LoadScreen):
    """Loading Screen with Time Out"""
    def __init__(self):
        super(TimeOut, self).__init__()

    def set_next_state(self):
        """Sets next state"""
        if self.persist[c.LIVES] == 0:
            return c.GAME_OVER
        else:
            return c.LOAD_SCREEN

    def set_overhead_info_state(self):
        """Sets the state to send to the overhead info object"""
        return c.TIME_OUT

    def update(self, surface, keys, current_time):
        self.current_time = current_time

        if (self.current_time - self.start_time) < 2400:
            surface.fill(c.BLACK)
            self.overhead_info.update(self.game_info)
            self.overhead_info.draw(surface)
        else:
            self.done = True

4.设置游戏内菜单等（main_menu）

import pygame as pg
from .. import setup, tools
from .. import constants as c
from .. components import info, mario

class Menu(tools._State):
    def __init__(self):
        """Initializes the state"""
        tools._State.__init__(self)
        persist = {c.COIN_TOTAL: 0,
                   c.SCORE: 0,
                   c.LIVES: 3,
                   c.TOP_SCORE: 0,
                   c.CURRENT_TIME: 0.0,
                   c.LEVEL_STATE: None,
                   c.CAMERA_START_X: 0,
                   c.MARIO_DEAD: False}
        self.startup(0.0, persist)

    def startup(self, current_time, persist):
        """Called every time the game's state becomes this one.  Initializes
        certain values"""
        self.next = c.LOAD_SCREEN
        self.persist = persist
        self.game_info = persist
        self.overhead_info = info.OverheadInfo(self.game_info, c.MAIN_MENU)

        self.sprite_sheet = setup.GFX['title_screen']
        self.setup_background()
        self.setup_mario()
        self.setup_cursor()

    def setup_cursor(self):
        """Creates the mushroom cursor to select 1 or 2 player game"""
        self.cursor = pg.sprite.Sprite()
        dest = (220, 358)
        self.cursor.image, self.cursor.rect = self.get_image(
            24, 160, 8, 8, dest, setup.GFX['item_objects'])
        self.cursor.state = c.PLAYER1

    def setup_mario(self):
        """Places Mario at the beginning of the level"""
        self.mario = mario.Mario()
        self.mario.rect.x = 110
        self.mario.rect.bottom = c.GROUND_HEIGHT

    def setup_background(self):
        """Setup the background image to blit"""
        self.background = setup.GFX['level_1']
        self.background_rect = self.background.get_rect()
        self.background = pg.transform.scale(self.background,
                                   (int(self.background_rect.width*c.BACKGROUND_MULTIPLER),
                                    int(self.background_rect.height*c.BACKGROUND_MULTIPLER)))
        self.viewport = setup.SCREEN.get_rect(bottom=setup.SCREEN_RECT.bottom)

        self.image_dict = {}
        self.image_dict['GAME_NAME_BOX'] = self.get_image(
            1, 60, 176, 88, (170, 100), setup.GFX['title_screen'])

    def get_image(self, x, y, width, height, dest, sprite_sheet):
        """Returns images and rects to blit onto the screen"""
        image = pg.Surface([width, height])
        rect = image.get_rect()

        image.blit(sprite_sheet, (0, 0), (x, y, width, height))
        if sprite_sheet == setup.GFX['title_screen']:
            image.set_colorkey((255, 0, 220))
            image = pg.transform.scale(image,
                                   (int(rect.width*c.SIZE_MULTIPLIER),
                                    int(rect.height*c.SIZE_MULTIPLIER)))
        else:
            image.set_colorkey(c.BLACK)
            image = pg.transform.scale(image,
                                   (int(rect.width*3),
                                    int(rect.height*3)))

        rect = image.get_rect()
        rect.x = dest[0]
        rect.y = dest[1]
        return (image, rect)

    def update(self, surface, keys, current_time):
        """Updates the state every refresh"""
        self.current_time = current_time
        self.game_info[c.CURRENT_TIME] = self.current_time
        self.update_cursor(keys)
        self.overhead_info.update(self.game_info)

        surface.blit(self.background, self.viewport, self.viewport)
        surface.blit(self.image_dict['GAME_NAME_BOX'][0],
                     self.image_dict['GAME_NAME_BOX'][1])
        surface.blit(self.mario.image, self.mario.rect)
        surface.blit(self.cursor.image, self.cursor.rect)
        self.overhead_info.draw(surface)

    def update_cursor(self, keys):
        """Update the position of the cursor"""
        input_list = [pg.K_RETURN, pg.K_a, pg.K_s]

        if self.cursor.state == c.PLAYER1:
            self.cursor.rect.y = 358
            if keys[pg.K_DOWN]:
                self.cursor.state = c.PLAYER2
            for input in input_list:
                if keys[input]:
                    self.reset_game_info()
                    self.done = True
        elif self.cursor.state == c.PLAYER2:
            self.cursor.rect.y = 403
            if keys[pg.K_UP]:
                self.cursor.state = c.PLAYER1

    def reset_game_info(self):
        """Resets the game info in case of a Game Over and restart"""
        self.game_info[c.COIN_TOTAL] = 0
        self.game_info[c.SCORE] = 0
        self.game_info[c.LIVES] = 3
        self.game_info[c.CURRENT_TIME] = 0.0
        self.game_info[c.LEVEL_STATE] = None

        self.persist = self.game_info

5.main()

from . import setup,tools
from .states import main_menu,load_screen,level1
from . import constants as c

def main():
    """Add states to control here."""
    run_it = tools.Control(setup.ORIGINAL_CAPTION)
    state_dict = {c.MAIN_MENU: main_menu.Menu(),
                  c.LOAD_SCREEN: load_screen.LoadScreen(),
                  c.TIME_OUT: load_screen.TimeOut(),
                  c.GAME_OVER: load_screen.GameOver(),
                  c.LEVEL1: level1.Level1()}

    run_it.setup_states(state_dict, c.MAIN_MENU)
    run_it.main()

6.调用以上函数实现

import sys
import pygame as pg
from 小游戏.超级玛丽.data.main import main
import cProfile

if __name__=='__main__':
    main()
    pg.quit()
    sys.exit()

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