import cv2
import numpy
import pynput.mouse

def openCamera(input):
	cv2.imshow("frame", input)
	key = cv2.waitKey(1)
	return key

def drawBox(finder, frame, b, g, r):
	for x, y, w, h in finder:
		cv2.rectangle(frame, (x, y), (x + w, y + h) ,(b, g, r), 2)

def exit(video):
	video.release()
	cv2.destroyAllWindows()


mouse = pynput.mouse.Controller()
video = cv2.VideoCapture(0)
frame = video.read()
findFistInit = None
centerX = 0
centerY = 0

while True:
	cascadeHand = cv2.CascadeClassifier("hand.xml")
	cascadeFist = cv2.CascadeClassifier("fist.xml")
	
	frame = video.read()[1]
	fmask = cv2.GaussianBlur(cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY), (21,21), 0)
	cv2.imshow("fmask", fmask)


	findFist = cascadeFist.detectMultiScale(fmask, scaleFactor = 1.1, minNeighbors = 75)

	if findFistInit is None:
		findFistInit = findFist

	if findFist == ():
		findHand = cascadeHand.detectMultiScale(fmask, scaleFactor = 1.1, minNeighbors = 10)

		if findHand != ():
			mouse.click(pynput.mouse.Button.left, 1)

	if findFist != () and findFistInit != ():

		dx, dy, dw, dh = findFist[0][0] - findFistInit[0][0], findFist[0][1] - findFistInit[0][1], findFist[0][2] - findFistInit[0][2], findFist[0][3] - findFistInit[0][3]

		centerX = (dx + dx + dw) / 2
		centerY = (dy + dy + dh) / 2
		mouse.move( -1 * 7 * dx, 7 * dy)

	findFistInit = findFist
	
	drawBox(findFist, frame, 0, 0, 255)
	drawBox(findHand, frame, 0, 255, 0)

	frame = cv2.flip(frame, 1)
	key = openCamera(frame)

	if(key == ord('q')):
		break


exit(video)