python pygame 立体图形——翻转

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import sys,math
import pygame
#使用pygame之前必须初始化
pygame.init()
#设置主屏窗口
screen = pygame.display.set_mode((800,600))

#设置窗口标题
pygame.display.set_caption('')
# source = pygame.Surface((50, 50), flags=pygame.HWSURFACE)
# 如果没有下列主循环代码，运行结果会一闪而过

# x1, y1 = 200, 200
# x2, y2 = 500, 200
# x3, y3 = 150, 400
# x4, y4 = 450, 400
#
# x5,y5 = 200,100
# x6,y6 = 500,100
# x7,y7 = 150,200
# x8,y8 = 450,200

x0,y0 = 300,300
x10,y10 = 300,150

angle1 = 45
angle2 = 135
angle3 = 225
angle4 = 315


def count(angle,length):
    # y = y2-y1
    y = math.sin(math.pi * (angle / 180)) * length
    y2 = int(y + y0)
    # x = x2-x1
    x = math.cos(math.pi * (angle / 180)) * length
    x2 = int(x + x0)

    return x2,y2
def count1(angle,length):
    # y = y2-y1
    y = math.sin(math.pi * (angle / 180)) * length
    y2 = int(y + y10)
    # x = x2-x1
    x = math.cos(math.pi * (angle / 180)) * length
    x2 = int(x + x10)

    return x2,y2
a = True
# 更新屏幕内容
pygame.display.flip()
x1, y1 = count(angle1, 50)
x2, y2 = count(angle2, 50)
x3, y3 = count(angle3, 50)
x4, y4 = count(angle4, 50)

x11, y11 = count1(angle1, 50)
x22, y22 = count1(angle2, 50)
x33, y33 = count1(angle3, 50)
x44, y44 = count1(angle4, 50)
while True:


    # #填充主窗口的背景颜色，参数值RGB（颜色元组）
    screen.fill((255, 255, 255))
    # 循环获取事件，监听事件
    for event in pygame.event.get():
        # 判断用户是否点了关闭按钮
        if event.type == pygame.QUIT:
            #卸载所有模块
            pygame.quit()
            #终止程序
            sys.exit()
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                print('右')
                angle1 -= 10
                angle2 -= 10
                angle3 -= 10
                angle4 -= 10
                x1, y1 = count(angle1, 50)
                x2, y2 = count(angle2, 50)
                x3, y3 = count(angle3, 50)
                x4, y4 = count(angle4, 50)

                x11, y11 = count1(angle1, 50)
                x22, y22 = count1(angle2, 50)
                x33, y33 = count1(angle3, 50)
                x44, y44 = count1(angle4, 50)
            elif event.key == pygame.K_LEFT:
                print('左')
                angle1 += 10
                angle2 += 10
                angle3 += 10
                angle4 += 10
                x1, y1 = count(angle1, 50)
                x2, y2 = count(angle2, 50)
                x3, y3 = count(angle3, 50)
                x4, y4 = count(angle4, 50)

                x11, y11 = count1(angle1, 50)
                x22, y22 = count1(angle2, 50)
                x33, y33 = count1(angle3, 50)
                x44, y44 = count1(angle4, 50)
            elif event.key == pygame.K_UP:
                print('上')
                y0 -= 5
                y1 -= 10
                y2 -= 10

                y10 -= 5
                y11 -= 10
                y22 -= 10


            elif event.key == pygame.K_DOWN:
                print('下')
                y0  += 5
                y1  += 10
                y2  += 10

                y10 += 5
                y11 += 10
                y22 += 10

    def rect():
        pygame.draw.line(screen, (1, 1, 1), (x0,y0),(x1,y1), 2)
        pygame.draw.line(screen, (1, 1, 1), (x0,y0),(x2,y2), 2)
        pygame.draw.line(screen, (1, 1, 1), (x0,y0),(x3,y3), 2)
        pygame.draw.line(screen, (1, 1, 1), (x0,y0),(x4,y4), 2)

        pygame.draw.line(screen, (1, 1, 1), (x1,y1),(x2,y2), 2)
        pygame.draw.line(screen, (1, 1, 1), (x2,y2),(x3,y3), 2)
        pygame.draw.line(screen, (1, 1, 1), (x3,y3),(x4,y4), 2)
        pygame.draw.line(screen, (1, 1, 1), (x4,y4),(x1,y1), 2)
    rect()

    def rect():
        pygame.draw.line(screen, (1, 1, 1), (x10,y10),(x11, y11), 2)
        pygame.draw.line(screen, (1, 1, 1), (x10,y10),(x22, y22), 2)
        pygame.draw.line(screen, (1, 1, 1), (x10,y10),(x33, y33), 2)
        pygame.draw.line(screen, (1, 1, 1), (x10,y10),(x44, y44), 2)

        pygame.draw.line(screen, (1, 1, 1), (x11, y11),(x22, y22), 2)
        pygame.draw.line(screen, (1, 1, 1), (x22, y22),(x33, y33), 2)
        pygame.draw.line(screen, (1, 1, 1), (x33, y33),(x44, y44), 2)
        pygame.draw.line(screen, (1, 1, 1), (x44, y44),(x11, y11), 2)
    rect()
    def Vertical_line():#竖线
        pygame.draw.line(screen, (1, 1, 1), (x11, y11), (x1,y1), 2)
        pygame.draw.line(screen, (1, 1, 1), (x22, y22), (x2,y2), 2)
        pygame.draw.line(screen, (1, 1, 1), (x33, y33), (x3,y3), 2)
        pygame.draw.line(screen, (1, 1, 1), (x44, y44), (x4,y4), 2)
    Vertical_line()
    def parallelogram(): #平行四边形
        pygame.draw.line(screen, (1, 1, 1), (x1, y1), (x2, y2), 2)
        pygame.draw.line(screen, (1, 1, 1), (x2, y2), (x4, y4), 2)
        pygame.draw.line(screen, (1, 1, 1), (x3, y3), (x4, y4), 2)
        pygame.draw.line(screen, (1, 1, 1), (x1, y1), (x3, y3), 2)

    # parallelogram()

    screen.blit(screen, (0, 0))
    # 定义频率
    clock = pygame.time.Clock()
    # 设定刷新帧率
    clock.tick(60) # 越大刷新的越快
    pygame.display.update()

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