01事件

import pygame
from color import Color
from random import randint
"""
游戏中的事件：
1.鼠标相关的事件
MOUSEBUTTONDOWN - 鼠标按下
MOUSEBUTTONUP - 鼠标弹起
MOUSEMOTION - 鼠标移动

鼠标事件要关注事件发生的位置：event.pos - 鼠标的坐标，元祖

2.键盘事件
KEYDOWN
KEYUP

键盘事件要关注哪个键被按了：event.key - 按键对应的字符编码，数字
"""


def main():
    pygame.init()
    window = pygame.display.set_mode((400, 600))
    pygame.display.set_caption('事件')
    window.fill(Color.white)

    pygame.display.flip()
    is_move = False
    while True:
        # 不断检测是否有事件产生，如果有事件产生才会进入for循环
        for event in pygame.event.get():
            # 这儿的event是事件对象，我们可以通过事件对象的type值来判断事件的类型
            # =====================鼠标事件===========================
            if event.type == pygame.QUIT:
                exit()
            elif event.type == pygame.MOUSEBUTTONDOWN:
                # 鼠标按下要做什么，就将代码写在这个if语句中
                print('鼠标按下', event.pos)
                # pygame.draw.circle(window, Color.random_color(), event.pos, randint(10, 20))
                # pygame.display.update()
                is_move = True
            elif event.type == pygame.MOUSEBUTTONUP:
                # 鼠标弹起要做什么，就将代码写在这个if语句中
                print('鼠标弹起')
                is_move = False
            elif event.type == pygame.MOUSEMOTION:
                # 鼠标移动要做什么，就将代码写在这个if语句中
                if is_move:
                    pygame.draw.circle(window, Color.random_color(), event.pos, 20)
                    pygame.display.update()
                    print('鼠标移动')

            # ===============键盘事件===================
            if event.type == pygame.KEYDOWN:
                print('按键被按下')
                print(event.key, chr(event.key))
            elif event.type == pygame.KEYUP:
                print('按键弹起')



if __name__ == '__main__':
    main()

02按钮 老师写的

import pygame
from color import Color
from random import randint


class Button:
    def __init__(self, x, y, width, height, text='', background_color=Color.red, text_color=Color.white):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.text = text
        self.background_color = background_color
        self.text_color = text_color
        self.font_size = 30

    def show(self, window):
        pygame.draw.rect(window, self.background_color, (self.x, self.y, self.width, self.height))
        font = pygame.font.SysFont('Times', self.font_size)
        text = font.render(self.text, True, self.text_color)
        w, h = text.get_size()
        x = self.width / 2 - w / 2 + self.x
        y = self.height / 2 - h / 2 + self.y
        window.blit(text, (x, y))

    def is_cliecked(self, pos):
        x, y = pos
        return  (self.x <= x <= self.x + self.width) and (self.y <= y <= self.y + self.height)


def main():
    pygame.init()
    window = pygame.display.set_mode((400, 600))
    pygame.display.set_caption('事件')
    window.fill(Color.white)

    # add_btn(window)
    add_btn = Button(100, 100, 100, 50, 'del')
    add_btn.show(window)

    btn2 = Button(100, 250, 100, 60, 'Score', background_color=Color.yellow, text_color=Color.black)
    btn2.show(window)

    pygame.display.flip()
    is_move = False
    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                exit()
            elif event.type == pygame.MOUSEBUTTONDOWN:
                mx, my = event.pos
                if add_btn.is_cliecked(event.pos):
                    print('删除!')
                    continue
                if btn2.is_cliecked(event.pos):
                    # print('hello')
                    btn2.text = str(randint(0, 100))
                    btn2.show(window)
                    pygame.display.update()
                    continue



if __name__ == '__main__':
    main()

03移动控制

import pygame
from color import Color
from random import randint

window_width = 400
window_height = 600


class Direction:
    UP = 273
    DOWN = 274
    RIGHT = 275
    LEFT = 276


class Ball:
    def __init__(self, center_x, center_y, radius, bg_color=Color.random_color()):
        self.center_x = center_x
        self.center_y = center_y
        self.radius = radius
        self.bg_color = bg_color
        self.is_move = False  # 是否移动
        self.move_direction = Direction.DOWN
        self.speed_y = 2
        self.speed_x = 2

    def disappear(self, window):
        pygame.draw.circle(window, Color.white, (self.center_x, self.center_y), self.radius)

    def show(self, window):
        pygame.draw.circle(window, self.bg_color, (self.center_x, self.center_y), self.radius)

    def move_random(self, window):
        self.disappear(window)
        self.center_x = randint(self.radius, window_width-self.radius)
        self.center_y = randint(self.radius, window_height-self.radius)
        self.show(window)

    def move_U_D(self, window):
        self.disappear(window)
        new_y = self.center_y + self.speed_y
        if new_y >= window_height - self.radius:
            new_y = window_height - self.radius
            self.speed_y *= -1
        elif new_y <= self.radius:
            new_y = self.radius
            self.speed_y *= -1
        self.center_y = new_y
        self.show(window)

    def move_L_R(self, window):
        self.disappear(window)
        new_x = self.center_x + self.speed_x
        if new_x >= window_width - self.radius:
            new_x = window_width - self.radius
            self.speed_x *= -1
        elif new_x <= self.radius:
            new_x = self.radius
            self.speed_x *= -1
        self.center_x = new_x
        self.show(window)


def main():
    pygame.init()
    window = pygame.display.set_mode((window_width, window_height))
    pygame.display.set_caption('事件')
    window.fill(Color.white)

    ball1 = Ball(randint(0, 400), randint(0, 600), 30, bg_color=Color.red)
    ball1.show(window)

    ball2 = Ball(randint(0, 400), randint(0, 600), 20)
    ball2.show(window)

    pygame.display.flip()
    time = 0
    while True:
        time += 1
        if time % 5000 == 0:
            # ball.move_random(window)
            # pygame.display.update()

            ball1.move_U_D(window)
            ball1.move_L_R(window)
            pygame.display.update()

        if time % 5000 == 0:
            ball2.move_U_D(window)
            ball2.move_L_R(window)
            pygame.display.update()

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                exit()
            elif event.type == pygame.KEYDOWN:
                if event.key == Direction.DOWN or event.key == Direction.UP or event.key == Direction.RIGHT or event.key == Direction.LEFT:
                    pass


if __name__ == '__main__':
    main()