俺也没玩儿过体感游戏…想着要是能够在远处控制鼠标就好了，于是就萌生了一个初步的想法：使用光源例如手电筒控制鼠标的移动，对着电脑屏幕，我往左挥，鼠标就往左移，往右挥，就往又移动…

实现方案

1. 获取电脑摄像头的图像，跟踪光斑位置，并转化为电脑屏幕坐标
2. 移动鼠标到该位置

环境准备

目标跟踪可以用opencv实现

pip install opencv-python

鼠标控制可以用pyautogui实现

pip install pyautogui

开始coding

from multiprocessing import Process, Manager
import cv2
import pyautogui


def light_tacking(screen_x:int, screen_y:int, q_location):
    """光斑跟踪"""
    cap = cv2.VideoCapture(0)
    size_x, size_y = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)), int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
    while True:
        ret, frame_lwpCV = cap.read()
        if not ret:
            continue
        gray_lwpCV = cv2.cvtColor(frame_lwpCV, cv2.COLOR_BGR2GRAY)
        gray_lwpCV = cv2.GaussianBlur(gray_lwpCV, (21, 21), 0)
        dst = cv2.flip(gray_lwpCV, 1)
        white = cv2.threshold(dst, 253, 255, cv2.THRESH_BINARY)[1]  # 转化为二值图（将亮度大于253的都修改为255，否则为0）
        contours, hier = cv2.findContours(white.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
        if len(contours) > 0:
            (x, y, w, h) = cv2.boundingRect(contours[0])
            mouse_x = int((2 * x + w) / 2 * screen_x / size_x)  # 将摄像头图像坐标映射到屏幕坐标
            mouse_y = int((2 * y + h) / 2 * screen_y / size_y)
            q_location.put((mouse_x, mouse_y))
            break
        if cv2.waitKey(100) & 0xff == ord('q'):
            break

def move_mouse(q_location):
    """获取光斑位置，并移动鼠标到该位置"""
    print("get location")
    while True:
        location = q_location.get(True)
        pyautogui.moveTo(location[0], location[1], 0.03)


if __name__ == '__main__':
    screen_x = 1920   # 屏幕分辨率
    screen_y = 1080
    q = Manager().Queue(500)
    # 两个任务由两个进行独立运行，避免卡顿
    work1 = Process(target=move_mouse, args=(q,))
    work1.daemon = True
    work1.start()
    work2 = Process(target=light_tacking, args=(screen_x, screen_y, q))
    work2.start()
    work2.join()

启动程序

确保电脑有摄像头，确保摄像头范围内没有其他光源，打开手机手电筒，对着屏幕摄像头挥舞试试吧
有光靠鼠标移动就能玩儿的游戏推荐吗？