我目前正在使用swift在我的iPhone上开发F1 2017的显示应用程序。我可以使用SwiftSockets从我的PS4读取UDP数据包到我的手机。
我收到了以下数据：
[25, 79, 3, 64, 176, 153, 15, 61, 244, 133, 165, 69, 0, 20, 145, 192, 223, 145, 218, 194, 165, 106, 64, 64, 15, 88, 234, 67, 220, 222, 109, 59, 168, 219, 67, 187, 42, 245, 4, 59, 200, 163, 186, 57, 65, 126, 46, 63, 22, 207, 77, 59, 13, 81, 59, 191, 127, 79, 59, 191, 0, 73, 203, 187, 141, 126, 46, 191, 180, 81, 37, 190, 5, 254, 41, 189, 251, 167, 151, 62, 145, 185, 39, 62, 7, 210, 92, 63, 203, 186, 128, 192, 218, 25, 99, 64, 112, 21, 0, 191, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 63, 24, 106, 72, 61, 239, 89, 49, 187, 0, 0, 192, 64, 191, 199, 133, 69, 0, 0, 0, 0, 0, 0, 144, 65, 0, 80, 195, 72, 0, 80, 195, 72, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 63, 75, 253, 209, 66, 0, 0, 210, 66, 0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 0, 80, 182, 232, 65, 80, 182, 232, 65, 80, 182, 232, 65, 80, 182, 232, 65, 0, 0, 172, 65, 0, 0, 172, 65, 0, 0, 184, 65, 0, 0, 184, 65, 0, 0, 0, 64, 0, 0, 198, 66, 57, 170, 165, 69, 128, 93, 205, 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1, 1, 4, 5, 0, 0, 0, 0, 83, 13, 149, 65, 96, 78, 84, 64, 101, 6, 9, 68, 170, 16, 200, 66, 82, 86, 44, 68, 212, 184, 199, 66, 0, 0, 0, 0, 0, 0, 0, 0, 75, 252, 160, 69, 6, 1, 3, 3, 5, 1, 2, 0, 0, 247, 239, 27, 68, 227, 16, 124, 64, 33, 229, 220, 67, 171, 9, 202, 66, 0, 0, 0, 0, 171, 9, 202, 66, 0, 0, 0, 0, 0, 0, 0, 0, 86, 90, 110, 69, 7, 11, 11, 2, 5, 0, 2, 0, 0, 91, 113, 167, 67, 92, 188, 60, 64, 223, 10, 42, 68, 58, 73, 206, 66, 0, 0, 0, 0, 58, 73, 206, 66, 0, 0, 0, 0, 0, 0, 0, 0, 214, 218, 146, 69, 18, 5, 19, 3, 5, 0, 2, 0, 0, 235, 33, 44, 68, 26, 50, 118, 64, 22, 232, 74, 68, 64, 189, 200, 66, 0, 0, 0, 0, 64, 189, 200, 66, 0, 0, 0, 0, 0, 0, 0, 0, 190, 18, 132, 69, 5, 6, 7, 3, 5, 0, 2, 0, 0, 63, 156, 38, 68, 27, 127, 136, 64, 55, 132, 5, 68, 48, 100, 203, 66, 0, 0, 0, 0, 48, 100, 203, 66, 0, 0, 0, 0, 0, 0, 0, 0, 12, 190, 116, 69, 35, 7, 16, 3, 5, 0, 2, 0, 0, 214, 118, 54, 196, 239, 49, 70, 64, 111, 224, 185, 195, 176, 46, 202, 66, 200, 232, 13, 61, 176, 46, 202, 66, 0, 0, 0, 0, 0, 0, 0, 0, 128, 229, 135, 68, 3, 7, 13, 4, 5, 0, 0, 0, 0, 122, 220, 252, 67, 157, 82, 60, 64, 88, 205, 89, 68, 208, 106, 202, 66, 0, 0, 0, 0, 208, 106, 202, 66, 0, 0, 0, 0, 0, 0, 0, 0, 213, 35, 138, 69, 14, 11, 14, 2, 5, 0, 2, 0, 0, 43, 225, 15, 68, 97, 160, 103, 64, 244, 178, 187, 67, 216, 10, 202, 66, 0, 0, 0, 0, 216, 10, 202, 66, 0, 0, 0, 0, 0, 0, 0, 0, 64, 42, 105, 69, 1, 8, 12, 3, 5, 0, 2, 0, 0, 12, 73, 197, 67, 40, 119, 53, 64, 115, 141, 56, 68, 199, 157, 201, 66, 0, 0, 0, 0, 199, 157, 201, 66, 0, 0, 0, 0, 0, 0, 0, 0, 5, 231, 143, 69, 10, 3, 8, 2, 5, 0, 2, 0, 0, 66, 178, 177, 67, 10, 45, 66, 64, 88, 176, 42, 68, 168, 124, 203, 66, 0, 0, 0, 0, 168, 124, 203, 66, 0, 0, 0, 0, 0, 0, 0, 0, 230, 9, 146, 69, 20, 3, 17, 3, 5, 0, 2, 0, 0, 140, 235, 54, 68, 99, 244, 101, 64, 198, 155, 62, 68, 16, 171, 201, 66, 0, 0, 0, 0, 16, 171, 201, 66, 0, 0, 0, 0, 0, 0, 0, 0, 109, 212, 129, 69, 33, 6, 9, 2, 5, 0, 2, 0, 0, 21, 102, 86, 66, 112, 68, 96, 64, 60, 2, 135, 65, 128, 194, 199, 66, 164, 206, 103, 66, 128, 194, 199, 66, 96, 174, 4, 66, 0, 0, 0, 0, 236, 0, 63, 69, 22, 0, 4, 3, 5, 0, 1, 0, 0, 47, 20, 201, 67, 201, 159, 49, 64, 18, 130, 60, 68, 8, 44, 199, 66, 86, 200, 170, 66, 8, 44, 199, 66, 64, 16, 4, 66, 64, 253, 217, 65, 94, 90, 143, 69, 9, 4, 2, 3, 5, 0, 2, 0, 0, 32, 154, 227, 194, 27, 193, 93, 64, 243, 43, 77, 196, 251, 231, 201, 66, 0, 0, 0, 0, 251, 231, 201, 66, 0, 0, 0, 0, 0, 0, 0, 0, 112, 189, 255, 68, 23, 8, 10, 3, 5, 0, 1, 0, 0, 157, 12, 27, 66, 80, 210, 84, 64, 234, 220, 13, 68, 240, 20, 200, 66, 204, 189, 15, 67, 240, 20, 200, 66, 0, 0, 0, 0, 0, 0, 0, 0, 113, 36, 160, 69, 15, 4, 6, 2, 5, 1, 2, 0, 0, 70, 217, 139, 67, 81, 9, 51, 64, 70, 253, 57, 68, 81, 176, 206, 66, 204, 63, 149, 60, 81, 176, 206, 66, 0, 0, 0, 0, 0, 0, 0, 0, 71, 132, 149, 69, 31, 5, 20, 2, 5, 0, 2, 0, 0, 182, 135, 20, 192, 86, 227, 218, 187, 41, 207, 77, 187, 23, 39, 22, 59, 188, 55, 6, 59, 86, 40, 253, 58, 203, 2, 123, 66, 62, 192, 141, 194, 179, 242, 115, 66, 2, 233, 141, 194, 207, 30, 49, 191, 192, 105, 55, 62, 231, 125, 246, 190]
我如何将数据解码为UDPPacket？为了做到这一点，我想我需要将数据转换为四个字节，然后以某种方式将其转换为浮点数。
这是我的快捷代码：
import UIKit
import SwiftSocket
class ViewController: UIViewController {
var server: UDPServer!
var timer: Timer!
override func viewDidLoad() {
super.viewDidLoad()
server = UDPServer(address: "192.168.1.158", port: 20777)
timer = Timer.scheduledTimer(withTimeInterval: 0, repeats: true) { _ in
print("a")
let data = self.server.recv(1289).0
if let data = data {
print(data)
self.timer.invalidate()
}
}
timer.fire()
}
}
这就是UDPPacket的样子：
struct UDPPacket
{
float m_time;
float m_lapTime;
float m_lapDistance;
float m_totalDistance;
float m_x; // World space position
float m_y; // World space position
float m_z; // World space position
float m_speed; // Speed of car in MPH
float m_xv; // Velocity in world space
float m_yv; // Velocity in world space
float m_zv; // Velocity in world space
float m_xr; // World space right direction
float m_yr; // World space right direction
float m_zr; // World space right direction
float m_xd; // World space forward direction
float m_yd; // World space forward direction
float m_zd; // World space forward direction
float m_susp_pos[4]; // Note: All wheel arrays have the order:
float m_susp_vel[4]; // RL, RR, FL, FR
float m_wheel_speed[4];
float m_throttle;
float m_steer;
float m_brake;
float m_clutch;
float m_gear;
float m_gforce_lat;
float m_gforce_lon;
float m_lap;
float m_engineRate;
float m_sli_pro_native_support; // SLI Pro support
float m_car_position; // car race position
float m_kers_level; // kers energy left
float m_kers_max_level; // kers maximum energy
float m_drs; // 0 = off, 1 = on
float m_traction_control; // 0 (off) - 2 (high)
float m_anti_lock_brakes; // 0 (off) - 1 (on)
float m_fuel_in_tank; // current fuel mass
float m_fuel_capacity; // fuel capacity
float m_in_pits; // 0 = none, 1 = pitting, 2 = in pit area
float m_sector; // 0 = sector1, 1 = sector2, 2 = sector3
float m_sector1_time; // time of sector1 (or 0)
float m_sector2_time; // time of sector2 (or 0)
float m_brakes_temp[4]; // brakes temperature (centigrade)
float m_tyres_pressure[4]; // tyres pressure PSI
float m_team_info; // team ID
float m_total_laps; // total number of laps in this race
float m_track_size; // track size meters
float m_last_lap_time; // last lap time
float m_max_rpm; // cars max RPM, at which point the rev limiter will kick in
float m_idle_rpm; // cars idle RPM
float m_max_gears; // maximum number of gears
float m_sessionType; // 0 = unknown, 1 = practice, 2 = qualifying, 3 = race
float m_drsAllowed; // 0 = not allowed, 1 = allowed, -1 = invalid / unknown
float m_track_number; // -1 for unknown, 0-21 for tracks
float m_vehicleFIAFlags; // -1 = invalid/unknown, 0 = none, 1 = green, 2 = blue, 3 = yellow, 4 = red
float m_era; // era, 2017 (modern) or 1980 (classic)
float m_engine_temperature; // engine temperature (centigrade)
float m_gforce_vert; // vertical g-force component
float m_ang_vel_x; // angular velocity x-component
float m_ang_vel_y; // angular velocity y-component
float m_ang_vel_z; // angular velocity z-component
byte m_tyres_temperature[4]; // tyres temperature (centigrade)
byte m_tyres_wear[4]; // tyre wear percentage
byte m_tyre_compound; // compound of tyre – 0 = ultra soft, 1 = super soft, 2 = soft, 3 = medium, 4 = hard, 5 = inter, 6 = wet
byte m_front_brake_bias; // front brake bias (percentage)
byte m_fuel_mix; // fuel mix - 0 = lean, 1 = standard, 2 = rich, 3 = max
byte m_currentLapInvalid; // current lap invalid - 0 = valid, 1 = invalid
byte m_tyres_damage[4]; // tyre damage (percentage)
byte m_front_left_wing_damage; // front left wing damage (percentage)
byte m_front_right_wing_damage; // front right wing damage (percentage)
byte m_rear_wing_damage; // rear wing damage (percentage)
byte m_engine_damage; // engine damage (percentage)
byte m_gear_box_damage; // gear box damage (percentage)
byte m_exhaust_damage; // exhaust damage (percentage)
byte m_pit_limiter_status; // pit limiter status – 0 = off, 1 = on
byte m_pit_speed_limit; // pit speed limit in mph
float m_session_time_left; // NEW: time left in session in seconds
byte m_rev_lights_percent; // NEW: rev lights indicator (percentage)
byte m_is_spectating; // NEW: whether the player is spectating
byte m_spectator_car_index; // NEW: index of the car being spectated
// Car data
byte m_num_cars; // number of cars in data
byte m_player_car_index; // index of player's car in the array
CarUDPData m_car_data[20]; // data for all cars on track
float m_yaw; // NEW (v1.8)
float m_pitch; // NEW (v1.8)
float m_roll; // NEW (v1.8)
float m_x_local_velocity; // NEW (v1.8) Velocity in local space
float m_y_local_velocity; // NEW (v1.8) Velocity in local space
float m_z_local_velocity; // NEW (v1.8) Velocity in local space
float m_susp_acceleration[4]; // NEW (v1.8) RL, RR, FL, FR
float m_ang_acc_x; // NEW (v1.8) angular acceleration x-component
float m_ang_acc_y; // NEW (v1.8) angular acceleration y-component
float m_ang_acc_z; // NEW (v1.8) angular acceleration z-component
};
CarUDPData：
struct CarUDPData
{
float m_worldPosition[3]; // world co-ordinates of vehicle
float m_lastLapTime;
float m_currentLapTime;
float m_bestLapTime;
float m_sector1Time;
float m_sector2Time;
float m_lapDistance;
byte m_driverId;
byte m_teamId;
byte m_carPosition; // UPDATED: track positions of vehicle
byte m_currentLapNum;
byte m_tyreCompound; // compound of tyre – 0 = ultra soft, 1 = super soft, 2 = soft, 3 = medium, 4 = hard, 5 = inter, 6 = wet
byte m_inPits; // 0 = none, 1 = pitting, 2 = in pit area
byte m_sector; // 0 = sector1, 1 = sector2, 2 = sector3
byte m_currentLapInvalid; // current lap invalid - 0 = valid, 1 = invalid
byte m_penalties; // NEW: accumulated time penalties in seconds to be added
};
如果有帮助的话，我正处于大奖赛的开始阶段（不是职业生涯），在澳大利亚担任刘易斯·汉密尔顿（Lewis Hamilton）的比赛并且起跑灯尚未亮相。