IS NPL - Revision history

Flame CZE at 10:52, 14 February 2026

2026-02-14T10:52:23Z

Flame CZE at 22:41, 10 February 2026

2026-02-10T22:41:00Z

Flame CZE: /* Fuel */ use {{kbd}} and {{var}} template

2026-02-10T22:38:52Z

Fuel: use {{kbd}} and {{var}} template

Bokujishin: /* CName */

2026-02-10T20:32:21Z

CName

Bokujishin: Created page with "== Introduction == The '''N'''ew '''PL'''ayer packet is sent by LFS when a player joins the race (joins the grid or leaves the pits). It can also be sent as a reply to a In..."

2026-02-10T11:20:17Z

Created page with "== Introduction == The '''N'''ew '''PL'''ayer packet is sent by LFS when a player joins the race (joins the grid or leaves the pits). It can also be sent as a reply to a In..."

New page

== Introduction ==

The '''N'''ew '''PL'''ayer packet is sent by LFS when a player joins the race (joins the grid or leaves the pits). It can also be sent as a reply to a [[InSim_enumerations#TINY|TINY_NPL]] packet.

{| class="wikitable"
|+ IS_NPL packet properties
|-
! Type !! Name !! Description
|-
| byte || Size || 76
|-
| byte || Type || ISP_NPL
|-
| byte || ReqI || 0 unless this is a reply to an TINY_NPL request
|-
| byte || PLID || player's newly assigned unique id
|-
| byte || UCID || connection's unique id
|-
| byte || PType || bit 0: female / bit 1: AI / bit 2: remote
|-
| word || Flags || player flags
|-
| char || PName[24] || nickname
|-
| char || Plate[8] || number plate - NO ZERO AT END!
|-
| char || CName[4] || car name
|-
| char || SName[16] || skin name - MAX_CAR_TEX_NAME
|-
| byte || Tyres[4] || compounds
|-
| byte || H_Mass || added mass (kg)
|-
| byte || H_TRes || intake restriction
|-
| byte || Model || driver model
|-
| byte || Pass || passengers byte
|-
| byte || RWAdj || low 4 bits: tyre width reduction (rear)
|-
| byte || FWAdj || low 4 bits: tyre width reduction (front)
|-
| byte || Sp2 ||
|-
| byte || Sp3 ||
|-
| byte || SetF || setup flags (see below)
|-
| byte || NumP || number in race - ZERO if this is a join request
|-
| byte || Config || configuration (see below)
|-
| byte || Fuel || /showfuel yes: fuel percent / no: 255
|}

== Packet Details ==

=== Size ===

The size of the packet is always 70 bytes.

=== Type ===

The packet type from the [[InSim_enumerations#ISP|ISP_]] enumeration, always ISP_NPL.

=== ReqI ===

ReqI is equal to zero, unless the packet is a reply to a [[InSim_enumerations#TINY|TINY_NPL]] request.

=== UCID ===

The connection's unique ID.

=== PType ===

Flags for the player:
* bit 0: female
* bit 1: AI
* bit 2: remote

=== Flags ===

Player settings and help flags:
<pre style="tab-size:4">#define PIF_LEFTSIDE 1
#define PIF_RESERVED_2 2
#define PIF_RESERVED_4 4
#define PIF_AUTOGEARS 8

#define PIF_SHIFTER 0x10
#define PIF_FLEXIBLE_STEER 0x20
#define PIF_HELP_B 0x40
#define PIF_AXIS_CLUTCH 0x80

#define PIF_INPITS 0x0100
#define PIF_AUTOCLUTCH 0x0200
#define PIF_MOUSE 0x0400
#define PIF_KB_NO_HELP 0x0800

#define PIF_KB_STABILISED 0x1000
#define PIF_CUSTOM_VIEW 0x2000</pre>

=== PName ===

The player's in-game name.

=== Plate ===

The player's number plate (all 8 bytes are used, the last byte is not zero).

=== CName ===

The car's name. See [[IS_SLC#CName]] for more details.

=== SName ===

The player's skin name.

=== Tyres ===

The tyre compounds for each wheel (rear left, rear right, front left, front right), from the [[InSim_enumerations#TYRE|TYRE_]] enumeration.

=== H_Mass ===

The added mass in kg.

=== H_TRes ===

The intake restriction.

=== Model ===

The driver model, which can be changed in the Options > Driver menu. You can use this to enforce the use of helmets, as some models do not wear one.

=== Pass ===

The passengers in the car, 2 bits are used for each passenger:
* Bit 0: front male
* Bit 1: front female
* Bit 2: rear left male
* Bit 3: rear left female
* Bit 4: rear middle male
* Bit 5: rear middle female
* Bit 6: rear right male
* Bit 7: rear right female

=== RWAdj ===

Tyre width reduction (rear tyres). This is only available on some official cars, and works similarly to [[#Config|Config]].

=== FWAdj ===

Tyre width reduction (front tyres). This is only available on some official cars, and works similarly to [[#Config|Config]].

=== SetF ===

Setup flags:
* SETF_SYMM_WHEELS (1): symmetric wheels
* SETF_TC_ENABLE (2): Traction Control enabled
* SETF_ABS_ENABLE (4): ABS enabled

=== NumP ===

Number of players in race. If the packet is a join request (see [[IS_ISI#Flags]] for handling join requests), NumP is zero.

=== Config ===

The vehicle's configuration. Each vehicle can allow multiple configurations, and some of them (for official cars) allow changing [[#RWAdj|RWAdj]] and [[#FWAdj|FWAdj]].

=== Fuel ===

Shows the fuel the player joined with, if using <code>/showfuel yes</code>, otherwise Fuel is 255.

[[Category:InSim packets]]

@@ Line 1: / Line 1: @@
-== Introduction ==
+{{Infobox InSim packet
 The '''N'''ew '''PL'''ayer packet is sent by LFS when a player joins the race (joins the grid or leaves the pits). It can also be sent as a reply to a [[InSim_enumerations#TINY|TINY_NPL]] packet.
 {| class="wikitable"
@@ Line 56: / Line 66: @@
 | byte || Fuel || /showfuel yes: fuel percent / no: 255
 |}
 === Size ===
@@ Line 173: / Line 181: @@
 Shows the fuel the player joined with, if using {{kbd|/showfuel yes}}, otherwise {{var|Fuel}} is 255.
 [[Category:InSim packets]]

@@ Line 69: / Line 69: @@
 === ReqI ===
-ReqI is equal to zero, unless the packet is a reply to a [[InSim_enumerations#TINY|TINY_NPL]] request.
+{{var|ReqI}} is equal to zero, unless the packet is a reply to a [[InSim_enumerations#TINY|TINY_NPL]] request.
 === UCID ===
@@ Line 129: / Line 129: @@
 === H_TRes ===
-The intake restriction.
+The intake restriction in percent.
 === Model ===
@@ Line 164: / Line 164: @@
 === NumP ===
-Number of players in race. If the packet is a join request (see [[IS_ISI#Flags]] for handling join requests), NumP is zero.
+Number of players in race. If the packet is a join request (see [[IS_ISI#Flags]] for handling join requests), {{var|NumP}} is zero.
 === Config ===

@@ Line 172: / Line 172: @@
 === Fuel ===
-Shows the fuel the player joined with, if using <code>/showfuel yes</code>, otherwise Fuel is 255.
+Shows the fuel the player joined with, if using {{kbd|/showfuel yes}}, otherwise {{var|Fuel}} is 255.
 [[Category:InSim packets]]

@@ Line 113: / Line 113: @@
 === CName ===
-The car's name. See [[IS_SLC#CName]] for more details.
+The car's name [[SkinID encoding|in compressed format]].
 === SName ===