pygame事件

pygame事件

"""__author__ == Jefferson"""
import pygame
from random import randint
sizex = 1200
sizey = 900

def rand_color():
    return randint(0,255),randint(0,255),randint(0,255)
#all_balls中保存多个球
#每个球要保存: 半径, 圆心坐标, 颜色, x速度, y速度
all_balls = [
    {
        'r': randint(10,20),
        'pos':(randint(0,sizex),randint(0,sizey)),
        'color': rand_color(),
        'x_speed': randint(-2,2),
        'y_speed': randint(-2,2)
    },
{
        'r': randint(10,20),
        'pos':(randint(0,sizex),randint(0,sizey)),
        'color': rand_color(),
        'x_speed': randint(-2,2),
        'y_speed': randint(-2,2)
    },
]


if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((sizex,sizey))
    screen.fill((255,255,255))
    pygame.display.flip()

    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                exit()

            if event.type == pygame.MOUSEBUTTONDOWN:
                ball = {
                    'r': randint(10,20),
                    'pos':event.pos,
                    'color': rand_color(),
                    'x_speed': randint(-2,2),
                    'y_speed': randint(-2,2)
                }
                all_balls.append(ball)

        #刷新界面
        screen.fill((255,255,255))
        for ball_dict in all_balls:
            x,y = ball_dict['pos']
            x_speed = ball_dict['x_speed']
            y_speed = ball_dict['y_speed']
            x += x_speed
            y += y_speed
            pygame.draw.circle(screen,ball_dict['color'],(x,y),ball_dict['r'])
            #更新球对应的坐标
            ball_dict['pos'] = x,y

            if x + ball_dict['r'] >= sizex:
                x = sizex - ball_dict['r']
                ball_dict['x_speed'] *= -1
            if x - ball_dict['r'] <= 0:
                x = ball_dict['r']
                ball_dict['x_speed'] *= -1
            if y + ball_dict['r'] >= sizey:
                y = sizey - ball_dict['r']
                ball_dict['y_speed'] *= -1
            if y - ball_dict['r'] <= 0:
                y = ball_dict['r']
                ball_dict['y_speed'] *= -1

            for ball_dict1 in all_balls:
                if (ball_dict['pos'][0] - ball_dict1['pos'][0])**2 \
                    + (ball_dict['pos'][1] - ball_dict1['pos'][1])**2\
                    < (ball_dict['r'] + ball_dict1['r'])**2:
                    if ball_dict['r'] - ball_dict1['r'] > 0:
                        ball_dict['r'] += ball_dict1['r']//2
                        ball_dict1['r'] = 0

                    elif ball_dict['r'] - ball_dict1['r'] < 0:
                        ball_dict1['r'] += ball_dict['r'] // 2
                        ball_dict['r'] = 0


            if ball_dict['r'] > sizey//2:
                screen.fill((255, 255, 255))
                font = pygame.font.SysFont('Times', 100)
                title = font.render('Game Over', True, (randint(0, 255), randint(0, 255), randint(0, 255)))
                screen.blit(title, (sizex//2-230, sizey//2-80))
                break

            i = 0
            while i< len(all_balls):
                if all_balls[i]['r'] == 0:
                    del all_balls[i]
                    i -= 1
                i += 1

        pygame.display.update()

鼠标事件的应用

"""__author__ == Jefferson"""
import pygame
import random
sizex = 600
sizey = 600
def color():
    return random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)

def draw_ball(screen,point):#在点击的位置产生一个球
    pygame.draw.circle(screen, color(), point, random.randint(10, 20))
    pygame.display.flip()
    # pygame.displat.update(),更新屏幕同flip()

#画一个按钮
def draw_button(color,text):
    pygame.draw.rect(screen,color[0],(sizex//2-50,sizey//2-30,100,60))#矩形框
    font = pygame.font.SysFont('Times',30)
    title = font.render(text,True,color[1])
    screen.blit(title,(sizex//2-40,sizey//2-20))
    return color,text

def is_point_in(point, rect):
    x,y = point
    rx, ry, rw, rh = rect
    if (rx <= x <= rx+rw) and (ry<=y<=ry+rh):
        return True
    return False

if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((sizex,sizey))
    screen.fill((255,255,255))
    pygame.display.set_caption('鼠标事件')

    text = 'click!'
    color1 = color()
    color2 = color()
    button = draw_button((color1, color2), text)
    pygame.display.flip()
    while True:
        i = 0
        for event in pygame.event.get():
            #退出
            i += 1
            if event.type == pygame.QUIT:
                exit()

            if event.type == pygame.MOUSEBUTTONDOWN:
                if is_point_in(event.pos,(sizex//2-50,sizey//2-30,100,60)):
                    text = 'click!'
                    color1 = color()
                    color2 = color()
                    button = draw_button((color1,color2),text)
                    draw_ball(screen,(random.randint(0,sizex),random.randint(0,sizey)))
                    pygame.display.flip()

            if event.type == pygame.MOUSEMOTION:
                screen.fill((255,255,255))
                draw_button(button[0],button[1])
                draw_ball(screen,event.pos)

"""__author__ == Jefferson"""
import pygame
image = pygame.image.load('./1.jpg')
image = pygame.transform.rotozoom(image, 0, 0.3)
sizex = 600
sizey = 600
rect = [0,0,image.get_size()[0],image.get_size()[1]]

def image_(screen,point = (135,135)):
    screen.blit(image, (point[0]-135,point[1]-135))
    return point[0]-135,point[1]-135,image.get_size()[0],image.get_size()[1]

def is_point_in(point, rect):
    x,y = point
    rx, ry, rw, rh = rect
    if (rx <= x <= rx+rw) and (ry<=y<=ry+rh):
        return True
    return False

if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((sizex, sizey))
    screen.fill((255, 255, 255))
    pygame.display.set_caption('鼠标事件2')
    image_(screen)
    pygame.display.flip()
    flag = False
    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                exit()

            if event.type == pygame.MOUSEBUTTONDOWN:
                flag = True

            if event.type == pygame.MOUSEBUTTONUP:
                flag = False



            if event.type == pygame.MOUSEMOTION:
                if flag == True and is_point_in(event.pos,rect):
                    screen.fill((255, 255, 255))
                    rect = image_(screen, event.pos)
                    pygame.display.flip()

pygame动画

"""__author__ == Jefferson"""
import pygame
from random import randint
sizex = 600
sizey = 400

def static_page(screen):
    font = pygame.font.SysFont('Times',40)
    title = font.render('welcome',True,(0,0,0))
    screen.blit(title,(200,200))

def animation_title(screen):
    font = pygame.font.SysFont('Times',40)
    title = font.render('Python',True,(randint(0,255),randint(0,255),randint(0,255)))
    screen.blit(title,(300,300))

if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((sizex,sizey))
    screen.fill((255,255,255))

    static_page(screen)

    pygame.display.flip()

    while True:
        #for中的代码只有在事件发生后才会执行
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                exit()

        pygame.time.delay(1)#在此处线程阻塞指定的时间

        #动画前要将原来的内容全部清空
        screen.fill((255,255,255))
        static_page(screen)
        animation_title(screen)

        #内容展示完成后要更新到屏幕上
        pygame.display.update()

ballgame

"""__author__ == Jefferson"""
import pygame
from random import randint

sizex = 600
sizey = 400
x_speed = 0
y_speed = 0
speed = 1
Up = 273
Down = 274
Left = 276
Right = 275

def draw_ball(place,color,pos):
    pygame.draw.circle(place,color,pos,20,0)
    return pos

def color():
    return randint(0, 255), randint(0, 255), randint(0, 255)

if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((sizex,sizey))
    screen.fill((255,255,255))

    pygame.display.flip()

    pos = draw_ball(screen,color(),(randint(0,sizex),randint(0,sizey)))

    #初始坐标
    ball_x = 100
    ball_y = 100
    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                exit()

            if event.type == pygame.KEYDOWN:
                if event.key == Up:
                    y_speed = 0-speed
                    x_speed = 0
                elif event.key == Down:
                    y_speed = speed
                    x_speed = 0
                elif event.key == Right:
                    x_speed = speed
                    y_speed = 0
                elif event.key == Left:
                    x_speed = 0-speed
                    y_speed = 0

        #刷新屏幕
        screen.fill((255,255,255))
        ball_x += x_speed
        ball_y += y_speed
        if ball_x + 20 >=sizex:
            ball_x = sizex-20
            x_speed *= -1
        if ball_x -20 <= 0:
            ball_x = 20
            x_speed *= -1
        if ball_y +20 >= sizey:
            ball_y = sizey-20
            y_speed *= -1
        if ball_y-20 <= 0:
            ball_y = 20
            y_speed *= -1

        draw_ball(screen,(255,0,0),(ball_x,ball_y))
        pygame.display.update()

小球游戏

"""__author__ == Jefferson"""
import pygame
from random import randint
sizex = 1200
sizey = 900

def rand_color():
    return randint(0,255),randint(0,255),randint(0,255)
#all_balls中保存多个球
#每个球要保存: 半径, 圆心坐标, 颜色, x速度, y速度
all_balls = [
    {
        'r': randint(10,20),
        'pos':(randint(0,sizex),randint(0,sizey)),
        'color': rand_color(),
        'x_speed': randint(-2,2),
        'y_speed': randint(-2,2)
    },
{
        'r': randint(10,20),
        'pos':(randint(0,sizex),randint(0,sizey)),
        'color': rand_color(),
        'x_speed': randint(-2,2),
        'y_speed': randint(-2,2)
    },
]


if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((sizex,sizey))
    screen.fill((255,255,255))
    pygame.display.flip()

    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                exit()

            if event.type == pygame.MOUSEBUTTONDOWN:
                ball = {
                    'r': randint(10,20),
                    'pos':event.pos,
                    'color': rand_color(),
                    'x_speed': randint(-3,3),
                    'y_speed': randint(-3,3)
                }
                all_balls.append(ball)

        #刷新界面
        screen.fill((255,255,255))
        for ball_dict in all_balls:
            x,y = ball_dict['pos']
            x_speed = ball_dict['x_speed']
            y_speed = ball_dict['y_speed']
            x += x_speed
            y += y_speed
            pygame.draw.circle(screen,ball_dict['color'],(x,y),ball_dict['r'])
            #更新球对应的坐标
            ball_dict['pos'] = x,y

            if x + ball_dict['r'] >= sizex:
                x = sizex - ball_dict['r']//2
                ball_dict['x_speed'] *= -1
            if x - ball_dict['r'] <= 0:
                x = ball_dict['r']
                ball_dict['x_speed'] *= -1
            if y + ball_dict['r'] >= sizey:
                y = sizey - ball_dict['r']//2
                ball_dict['y_speed'] *= -1
            if y - ball_dict['r'] <= 0:
                y = ball_dict['r']
                ball_dict['y_speed'] *= -1

            for ball_dict1 in all_balls:
                if (ball_dict['pos'][0] - ball_dict1['pos'][0])**2 \
                    + (ball_dict['pos'][1] - ball_dict1['pos'][1])**2\
                    < (ball_dict['r'] + ball_dict1['r'])**2:
                    if ball_dict['r'] - ball_dict1['r'] > 0:
                        ball_dict['r'] += ball_dict1['r']//2
                        ball_dict1['r'] = 0

                    elif ball_dict['r'] - ball_dict1['r'] < 0:
                        ball_dict1['r'] += ball_dict['r'] // 2
                        ball_dict['r'] = 0


            if ball_dict['r'] > sizey//2:
                screen.fill((255, 255, 255))
                font = pygame.font.SysFont('Times', 100)
                title = font.render('Game Over', True, (randint(0, 255), randint(0, 255), randint(0, 255)))
                screen.blit(title, (sizex//2-230, sizey//2-80))
                break

            i = 0
            while i< len(all_balls):
                if all_balls[i]['r'] == 0:
                    del all_balls[i]
                    i -= 1
                i += 1

        pygame.display.update()