910. 用Kotlin破解Android版微信小游戏-跳一跳

成果

1077

跳一跳

微信小程序可以玩游戏了，我们来破解一下《跳一跳》这个官方出品的小游戏吧。

思路

用usb调试安卓手机，用adb截图并用鼠标测量距离，然后计算按压时间后模拟按压。

$ adb shell input swipe [duration(ms)] (Default: touchscreen) # 模拟长按

$ adb shell screencap # 保存截屏到手机

$ adb pull /sdcard/screen.png # 下载截屏文件到本地

得到手指按的时间 t

时间 = 距离 / 速度(常量) t = L / k

L = p2 - p1

获取到起始点和结束点的坐标

源码

开发环境： Kotlin, IetelliJ IDEA

https://github.com/iOSDevLog/JumpJump

主要源码

fun main(args: Array) {

val jumpjump = JumpJump()

var isFirst = true

var firstPoint: Point? = null

var secondPoint: Point?

val jPanel = object : JPanel() {

override fun paintComponent(g: Graphics) {

super.paintComponent(g)

try {

var bufferedImage = ImageIO.read(File(SCREENSHOT_LOCATION))

val newImage = BufferedImage(675, 1200, bufferedImage.getType())

val gTemp = newImage.graphics

gTemp.drawImage(bufferedImage, 0, 0, 675, 1200, null)

gTemp.dispose()

bufferedImage = newImage

g.drawImage(bufferedImage, 0, 0, null)

} catch (e: IOException) {

e.printStackTrace()

}

}

}

jPanel.addMouseListener(object : MouseListener {

override fun mouseReleased(e: MouseEvent?) {

}

override fun mouseEntered(e: MouseEvent?) {

}

override fun mouseClicked(e: MouseEvent?) {

}

override fun mouseExited(e: MouseEvent?) {

}

override fun mousePressed(e: MouseEvent?) {

println("mousePressed")

e.let {

if (isFirst) {

println("first {pomt" + e!!.x + " " + e.y)

firstPoint = e.point

isFirst = false

} else {

secondPoint = e!!.point

val distance = distance(firstPoint!!, secondPoint!!)

println("distance:" + distance)

isFirst = true

//magic number

call(distance * 2.2)

try {

// wait for screen cap

Thread.sleep(2500)

} catch (e1: InterruptedException) {

e1.printStackTrace()

}

printScreen()

jPanel.validate()

jPanel.repaint()

}

}

}

})

jumpjump.isVisible = true

jumpjump.contentPane.add(jPanel)

printScreen()

jumpjump.repaint()

jumpjump.validate()

}

fun distance(a: Point, b: Point): Int {

return Math.sqrt((a.x - b.getX()) * (a.x - b.getX()) + (a.y - b.getY()) * (a.y - b.getY())).toInt()

}

使用方法

在电脑上下载好adb

打开安卓手机的usb调试模式并授权连接的电脑

打开微信跳一跳，并点击开始

在Constans.kt中配置好adb路径与截图路径，运行

在弹出的窗口中先点击小人底部适当位置，然后再点想要跳的箱子的位置即可完成