游戏|Python实现超级玛丽游戏系列教程02玛丽行走 pygame|超级玛丽|python

配套视频教程
配套视频教程
项目代码
项目代码
最终效果

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行走
constants.py

STAND = 'standing' WALK = 'walk'SMALL_ACCEL = .2 SMALL_TURNAROUND = .35

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玛丽类构造函数修改如下：

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玛丽类新增及修改

def update(self, keys): self.handle_state(keys) self.update_position() self.animation()def update_position(self): self.rect.x += self.x_vel self.rect.y += self.y_veldef handle_state(self, keys): if self.state == c.STAND: self.standing(keys) elif self.state == c.WALK: self.walking(keys)def animation(self): if self.facing_right: self.image = self.right_frames[self.frame_index] else: self.image = self.left_frames[self.frame_index]def load_from_sheet(self): self.right_frames.append( self.get_image(178, 32, 12, 16))# right self.right_frames.append( self.get_image(80, 32, 15, 16))# right walking 1 self.right_frames.append( self.get_image(99, 32, 15, 16))# right walking 2 self.right_frames.append( self.get_image(114, 32, 15, 16))# right walking 3 self.right_frames.append( self.get_image(144, 32, 16, 16))# right jump self.right_frames.append( self.get_image(130, 32, 14, 16))# right skid# The left image frames are numbered the same as the right # frames but are simply reversed.for frame in self.right_frames: new_image = pg.transform.flip(frame, True, False) self.left_frames.append(new_image)

玛丽类新增

def standing(self, keys): self.frame_index = 0 self.x_vel = 0 self.y_vel = 0if keys[pg.K_LEFT]: self.facing_right = False self.state = c.WALK elif keys[pg.K_RIGHT]: self.facing_right = True self.state = c.WALK else: self.state = c.STANDdef walking(self, keys): if self.frame_index == 0: self.frame_index += 1 else: if self.frame_index < 3: self.frame_index += 1 else: self.frame_index = 1if keys[pg.K_LEFT]: self.facing_right = False self.x_accel = c.SMALL_ACCEL#向左速度是负的，如果没达到最小的负的速度，继续向左 # 比如 -3 > -4，那就继续减小 if self.x_vel > (self.max_x_vel * -1): self.x_vel -= self.x_accelelif keys[pg.K_RIGHT]: self.facing_right = True self.x_accel = c.SMALL_ACCELif self.x_vel < self.max_x_vel: self.x_vel += self.x_accel

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