Python Fat Chicken War Development Record (4): Fat Chicken Move

Use the arrow keys to control the movement of the fat chicken.
1. Respond to the button (taking right as an example)
update: \game_functions.py:

import...

def check_events(chicken):
    """响应按键和鼠标事件"""
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                # 向右移动
                chicken.rect.centerx += 1

...

Update: \FatChickenWars.py:

...
        # 监视键盘和鼠标事件
        gf.check_events(chicken)
...

2. It is allowed to move continuously (taking the movement to the right as an example)
while holding down the arrow keys, the fat chicken should move continuously.
Implementation method: add moving_right attribute and update() method to Chicken class
Update: \chicken.py-Class Chicken():

	...
        #移动标志
        self.moving_right = False
        
    def update(self):
        """根据移动标志调整肥鸡位置"""
        if self.moving_right:
            self.rect.centerx += 1

Update: \game_functions.py:

def check_events(chicken):
    """响应按键和鼠标事件"""
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                chicken.moving_right = True

        elif event.type == pygame.KEYUP:
            if event.key == pygame.K_RIGHT:
                chicken.moving_right = False

Update: \FatChickenWars.py:

...
    while True:
        # 监视键盘和鼠标事件
        gf.check_events(chicken)
        
        # 更新肥鸡状态
        chicken.update()

        # 更新画面
        gf.update_screen(fcw_settings, screen, chicken)
...

The effect is good.

2021.1.21