此仓库的功能出发点如下：
- 极限竞速地平线 4/5 可以把游戏内的遥测数据通过udp输出到指定的ip和端口上
- foobar2000 可以通过安装插件来支持web api控制播放状态
- 游戏内的音乐听腻了，想听听自定义的歌曲，并且想让音乐状态能像游戏内音乐那样随着游戏状态改变，比如游戏暂停的时候，音乐也暂停。
- 安装 foobar2000
- 安装 Beefweb Remote Control 插件
插件仓库在 beefweb 插件的api在 swagger ui
这个格式最早好像是来源于 fhz 论坛，但是论坛原文被删掉了，我是从 https://github.com/richstokes/Forza-data-tools/blob/master/FH4_packetformat.dat 找到的。 这里我把它转成了 C 语言的结构体
#include <stdint.h>
typedef float f32;
typedef int32_t s32;
typedef uint32_t u32;
typedef uint16_t u16;
typedef uint8_t u8;
typedef int8_t s8;
struct ForzaHorizonDataOutFormat {
s32 IsRaceOn; // = 1 when race is on. = 0 when in menus/race stopped …
u32 TimestampMS; //Can overflow to 0 eventually
f32 EngineMaxRpm; //最大引擎转速
f32 EngineIdleRpm; //发动机怠速转速
f32 CurrentEngineRpm; //当前引擎转速
f32 AccelerationX; //加速度In the car's local space; X = right, Y = up, Z = forward
f32 AccelerationY;
f32 AccelerationZ;
f32 VelocityX; //速度In the car's local space; X = right, Y = up, Z = forward
f32 VelocityY;
f32 VelocityZ;
f32 AngularVelocityX; //角速度In the car's local space; X = pitch, Y = yaw, Z = roll
f32 AngularVelocityY;
f32 AngularVelocityZ;
f32 Yaw; //偏航角
f32 Pitch; //俯仰角
f32 Roll; //翻滚角
f32 NormalizedSuspensionTravelFrontLeft; // 悬架行程：Suspension travel normalized: 0.0f = max stretch; 1.0 = max compression
f32 NormalizedSuspensionTravelFrontRight;
f32 NormalizedSuspensionTravelRearLeft;
f32 NormalizedSuspensionTravelRearRight;
f32 TireSlipRatioFrontLeft; // 轮胎滑移率Tire normalized slip ratio, = 0 means 100% grip and |ratio| > 1.0 means loss of grip.
f32 TireSlipRatioFrontRight;
f32 TireSlipRatioRearLeft;
f32 TireSlipRatioRearRight;
f32 WheelRotationSpeedFrontLeft; // 车轮转速Wheel rotation speed radians/sec.
f32 WheelRotationSpeedFrontRight;
f32 WheelRotationSpeedRearLeft;
f32 WheelRotationSpeedRearRight;
s32 WheelOnRumbleStripFrontLeft; // = 1 when wheel is on rumble strip, = 0 when off.
s32 WheelOnRumbleStripFrontRight;
s32 WheelOnRumbleStripRearLeft;
s32 WheelOnRumbleStripRearRight;
f32 WheelInPuddleDepthFrontLeft; // = from 0 to 1, where 1 is the deepest puddle
f32 WheelInPuddleDepthFrontRight;
f32 WheelInPuddleDepthRearLeft;
f32 WheelInPuddleDepthRearRight;
f32 SurfaceRumbleFrontLeft; // Non-dimensional surface rumble values passed to controller force feedback
f32 SurfaceRumbleFrontRight;
f32 SurfaceRumbleRearLeft;
f32 SurfaceRumbleRearRight;
f32 TireSlipAngleFrontLeft; // Tire normalized slip angle, = 0 means 100% grip and |angle| > 1.0 means loss of grip.
f32 TireSlipAngleFrontRight;
f32 TireSlipAngleRearLeft;
f32 TireSlipAngleRearRight;
f32 TireCombinedSlipFrontLeft; // Tire normalized combined slip, = 0 means 100% grip and |slip| > 1.0 means loss of grip.
f32 TireCombinedSlipFrontRight;
f32 TireCombinedSlipRearLeft;
f32 TireCombinedSlipRearRight;
f32 SuspensionTravelMetersFrontLeft; // 实际悬架行程(米)Actual suspension travel in meters
f32 SuspensionTravelMetersFrontRight;
f32 SuspensionTravelMetersRearLeft;
f32 SuspensionTravelMetersRearRight;
s32 CarOrdinal; //Unique ID of the car make/model 车辆代号
s32 CarClass; //Between 0 (D -- worst cars) and 7 (X class -- best cars) inclusive
s32 CarPerformanceIndex; //Between 100 (slowest car) and 999 (fastest car) inclusive
s32 DrivetrainType; //Corresponds to EDrivetrainType; 0 = FWD(全时4驱), 1 = RWD（落锤式弯沉仪）, 2 = AWD（后轮驱动）
s32 NumCylinders; //气缸数Number of cylinders in the engine
s32 CarCategory; //
u8 HorizonPlaceholder[8]; // unknown FH4 values
f32 PositionX; //车辆位置
f32 PositionY;
f32 PositionZ;
f32 Speed; // 速度 m/s meters per second
f32 Power; // 功率 瓦特watts
f32 Torque; // 扭矩 newton meter
f32 TireTempFrontLeft; //胎温
f32 TireTempFrontRight;
f32 TireTempRearLeft;
f32 TireTempRearRight;
f32 Boost;
f32 Fuel; //油门
f32 DistanceTraveled; //比赛中的行驶距离
f32 BestLap; //最佳圈速
f32 LastLap; //上一圈速
f32 CurrentLap; //当前圈速
f32 CurrentRaceTime; //当前比赛时间
u16 LapNumber; //圈数
u8 RacePosition; //比赛排名
u8 Accel; //加速
u8 Brake; //刹车
u8 Clutch; //离合 0没有踩离合，FF 踩下离合
u8 HandBrake; //手刹 0 没有拉手刹，FF 拉下手刹
u8 Gear; //挡位
s8 Steer; //驾驶
s8 NormalizedDrivingLine; //驾驶辅助线
s8 NormalizedAIBrakeDifference; //AI制动差
};在Windows上，可以使用下面这样一个简单的Dmeo来实现我们的目标：
#include "httplib.h"
#include "ForzaDataFormat.h"
#include "Windows.h"
bool running = true;
BOOL WINAPI consoleHandler(DWORD signal) {
if (signal == CTRL_C_EVENT) {
printf("Ctrl-C handled\n"); // do cleanup
running = false;
}
return TRUE;
}
int main()
{
if (!SetConsoleCtrlHandler(consoleHandler, TRUE)) {
printf("\nERROR: Could not set control handler");
return 1;
}
SOCKET fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (fd == INVALID_SOCKET) {
printf("invalid socket");
return 0;
}
SOCKADDR_IN listenaddr;
memset(&listenaddr, 0, sizeof(listenaddr));
listenaddr.sin_family = AF_INET;
listenaddr.sin_port = htons(8881);
inet_pton(AF_INET, "127.0.0.1", &(listenaddr.sin_addr.S_un.S_addr));
if (::bind(fd,(sockaddr*)(&listenaddr), sizeof(listenaddr)) != 0) {
closesocket(INVALID_SOCKET);
fd = INVALID_SOCKET;
printf("bind failed");
return -1;
}
timeval timeout;
timeout.tv_sec = 2;
timeout.tv_usec = 0;
if (::setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout, sizeof(timeout)) != 0) {
closesocket(INVALID_SOCKET);
fd = INVALID_SOCKET;
printf("set sock opt failed");
return -1;
}
s32 play = 1;
ForzaHorizonDataOutFormat data;
httplib::Client cli("http://localhost:8880");
cli.Post("/api/player/play");
while (running && fd != INVALID_SOCKET) {
int len = recvfrom(fd, (char*)&data, sizeof(data), 0, NULL, NULL);
if (len > 0) {
if (play != data.IsRaceOn) {
play = data.IsRaceOn;
if (play) {
cli.Post("/api/player/play");
}
else {
cli.Post("/api/player/pause");
}
}
}
}
if (fd != INVALID_SOCKET) {
closesocket(INVALID_SOCKET);
fd = INVALID_SOCKET;
}
return 0;
}其中
httplib.h是 https://github.com/yhirose/cpp-httplib/blob/master/httplib.hForzaDataFormat.h是极限竞速地平线 4/5 的数据输出格式的结构体