So i'm receiving a bytes into a NSData object which i can read raw with [data bytes] I also have a struct which you can find below.
How can i cast this data with the struct to something more useful? Like an NSDictionary or another object?
What i'm trying:
UDPPacket packet;
packet = [data bytes];
But it returns an error:Assigning to 'UDPPacket' from incompatible type 'const void *'
The struct:
typedef struct {
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
} CarUDPData;
typedef struct {
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
} UDPPacket;
