鼠标相关事件

import pygame,random
from color import Color
'''
1.鼠标相关的事件
鼠标事件要关注事件发生的位置:event.pos
'''

def base_game():
    pygame.init()
    window = pygame.display.set_mode((400,600))
    pygame.display.set_caption('lost castle')
    window.fill(Color.white)

    pygame.display.flip()
    # flag = False
    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                exit()
            elif event.type == pygame.MOUSEBUTTONDOWN:
                print('鼠标按下', event.pos)
                pygame.draw.circle(window,Color.rand_color(),event.pos,random.randint(10,20))
                pygame.display.update()
                # flag = True
            elif event.type == pygame.MOUSEBUTTONUP:
                print('鼠标弹起')
                # flag = False
            elif event.type == pygame.MOUSEMOTION:
                # if flag:
                pass


def main():
    base_game()


if __name__ == '__main__':
    main()

期间封装一个颜色类

from random import randint


class Color(object):
    white = (255,255,255)
    black = (0,0,0)
    red = (255,0,0)
    green = (0,255,0)
    blue = (0,0,255)
    yellow = (255,255,0)
    gray = (155,155,125)

    @staticmethod
    def rand_color():
        return randint(0,255),randint(0,255),randint(0,255)


def main():
    pass


if __name__ == '__main__':
    main()

按钮

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()