SenselContacts.cs

using System;
using UnityEngine;

namespace Sensel
{
    class SenselContacts : MonoBehaviour
    {
        IntPtr _handle = IntPtr.Zero;
        SenselFrame _frame = new SenselFrame();
        SenselSensorInfo _sensor_info;

        void Start()
        {
            SenselDeviceList list = new SenselDeviceList();
            list.num_devices = 0;
            Sensel.senselGetDeviceList(ref list);
            Debug.Log("Num Devices: " + list.num_devices);
            if (list.num_devices != 0)
            {
                Sensel.senselOpenDeviceByID(ref _handle, list.devices[0].idx);
            }
            if (_handle != IntPtr.Zero)
            {
                Sensel.senselGetSensorInfo(_handle, ref _sensor_info);
                Sensel.senselSetFrameContent(_handle, 1);
                Sensel.senselAllocateFrameData(_handle, _frame);
                Sensel.senselStartScanning(_handle);
            }
        }

        void LateUpdate()
        {
            if (_handle != IntPtr.Zero)
            {
                Int32 num_frames = 0;
                Sensel.senselReadSensor(_handle);
                Sensel.senselGetNumAvailableFrames(_handle, ref num_frames);

                for (int f = 0; f < num_frames; ++f)
                {
                    Sensel.senselGetFrame(_handle, _frame);

                    if (f + 1 == num_frames)
                    {
                        // Force value is returned, without problem
                        Debug.Log(_frame.force_array[10]);

                        // Number of contacts always stays null, doesn't return anything
                        Debug.Log(_frame.contacts.Length);
                        Debug.Log(_frame.contacts[0].x_pos);
                    }
                }
            }
        }
    }
}