python，pil库的小应用

<pre>#euraxluo 5.15
#obj_1
#跳一跳的外挂
from PIL import Image
import subprocess
import time
import  random
import os

def jump(distance):
    press_time = distance*2.353
    press_time = max(press_time,200)
    press_time = int(press_time)
    point = (random.randint(500,600),random.randint(1000,1200))
    cmd = 'adb shell input swipe {x1} {y1} {x2} {y2} {time}'.format(
        x1=point[0],
        y1=point[1],
        x2=point[0]+random.randint(1,5),
        y2=point[1]+random.randint(1,5),
        time = press_time

    )
    os.system(cmd)
    return press_time

def get_screenshot():
    #jietu,baocun jump.png
    #调用os模块
    process=subprocess.Popen('adb shell screencap -p',shell=True,stdout=subprocess.PIPE)
    screenshot = process.stdout.read()#读取图片信息
    screenshot = screenshot.replace(b'\r\n',b'\n')#去除干扰信息
    with open('jump.png','wb') as f:#保存为图片
        f.write(screenshot)

def find_a_and_b(img_path):#寻找起点和终点
    img = Image.open(img_path)
    w,h = img.size #图片尺寸
    img_pixel = img.load() #图片的像素矩阵
    start_p = None

    for i in range(int(h/5),int(h*2/3),50): #以50为步长扫描
        first_pixel = img_pixel[0,i]

        for j in range(1,w):#循环查找，如果遇到非纯色。为棋盘
            pixel = img_pixel[j,i]
            if pixel[0] != first_pixel[0] or pixel[1] !=first_pixel[1] or pixel[2] !=first_pixel[2]:#确定棋盘
                start_p = i - 50
                break
        if start_p:
            break

    #找到棋子
    left = 0
    right = 0
    a_point_y_max = 0
    bz = True
    for i in range(start_p,int(h*2/3)):#限制棋子的扫描范围
        for j in range(int(w/9),int(w*8/9),10):#限制棋子的扫描范围 去掉边界1/9
            pixel = img_pixel[j,i]

            if (50<pixel[0]<60)and(53<pixel[1]<63)and(95<pixel[2]<110):
                print(pixel[0],pixel[1],pixel[2])
                if bz:
                    left = j
                    bz = False

                right = j
                a_point_y_max = max(i,a_point_y_max)#a_point 的纵坐标

    a_point_x = (left + right) // 2     #a_point 的横坐标
    a_point_y = a_point_y_max - 10      #根据不同分辨路确定

    #找棋盘
    #限制棋盘的扫描范围

    if a_point_x < w/2:         #棋子在左边
        b_start_x = a_point_x + 50
        b_end_x = 690
    else:
        b_start_x = 30
        b_end_x = a_point_x - 50
    #找棋盘的顶点
    for i in range(start_p,start_p+200):#y轴大致位置循环至下200px
        first_pixel = img_pixel[0,i]#背景色的rgb
        for j in range(b_start_x,b_end_x,5):#棋子的边界坐标循环至边界
            pixel = img_pixel[j,i]
            if abs(pixel[0] - first_pixel[0])+abs(pixel[1] - first_pixel[1])+abs(pixel[2] - first_pixel[2])>15:
                if bz:
                    left = j
                    right = j
                    bz = False
                else:
                    right = j
        if not bz:
            break
    b_x = (720-(right+left)//2)
    b_top = img_pixel[b_x,i+30]
    #从定点往下找
    for k in range(i+250,i,-1):
        pixel = img_pixel[b_x,k]
        if abs(pixel[0] - first_pixel[0]) + abs(pixel[1] - first_pixel[1]) + abs(pixel[2] - first_pixel[2]) < 12:
            break

    b_y=(i+k)//2+80
    return (a_point_x,a_point_y),(b_x+20,b_y)

def run():
    oper = input('请连接手机，确定开始？y/n')
    if oper != 'y':
            exit('结束')
    while True:
        # screenshout
        get_screenshot()  # 获取截图
        a,b=find_a_and_b('jump.png')
        distance = ((a[0]-b[0])**2+(a[1]-b[1])**2)**0.5#计算距离

        jump(distance)#按压
        time.sleep(random.randrange(1,2))#随机休眠

if __name__ == '__main__':
    run()
   # find_a_and_b('jump.png')</pre>