IS CIM

Introduction

The Connection Interface Mode packet is sent by LFS when a player changes screens in the game's interface.

IS_CIM packet properties

Type	Name	Description
byte	Size	8
byte	Type	ISP_CIM
byte	ReqI	0
byte	UCID	connection's unique id (0 = local)
byte	Mode	mode identifier (see below)
byte	SubMode	submode identifier (see below)
byte	SelType	selected object type (see below)
byte	Sp3

Packet Details

Size

The size of the packet is always 8 bytes.

Type

The packet type from the ISP_ enumeration, always ISP_CIM.

ReqI

ReqI is always equal to zero.

UCID

The connection's unique ID (0 is the local client).

Mode

The mode identifier, a value from the CIM_ enumeration:

• CIM_NORMAL: Not in a special mode
• CIM_OPTIONS: Options menu
• CIM_HOST_OPTIONS: Host options menu
• CIM_GARAGE: Garage screen
• CIM_CAR_SELECT: Car select screen (includes mod selection)
• CIM_TRACK_SELECT: Track select screen
• CIM_SHIFTU: Free view mode

SubMode

The sub-mode identifier, which gives additional details about the Mode. It can be a value from one of the 3 sub-mode enumerations.

NRM_:

• NRM_NORMAL: Normal view
• NRM_WHEEL_TEMPS: F9 (tyres)
• NRM_WHEEL_DAMAGE: F10 (suspension damage)
• NRM_LIVE_SETTINGS: F11 (live settings)
• NRM_PIT_INSTRUCTIONS: F12 (pit instructions)

GRG_:

• GRG_INFO: Garage Info tab
• GRG_COLOURS: Garage Colours tab
• GRG_BRAKE_TC: Garage Brakes tab
• GRG_SUSP: Garage Suspensions tab
• GRG_STEER: Garage Steering tab
• GRG_DRIVE: Garage Final Drive tab
• GRG_TYRES: Garage Tyres tab
• GRG_AERO: Garage Downforce tab
• GRG_PASS: Garage Passengers tab
• 255 (undocumented): Garage Mod Rating tab

FVM_:

• FVM_PLAIN: No buttons displayed
• FVM_BUTTONS: Buttons displayed (not editing)
• FVM_EDIT: Layout edit mode

SelType

Selected object type, which is either a value from the AXO_ enumeration in the LYT format, or one of the following:

• MARSH_IS_CP = 252: InSim Checkpoint
• MARSH_IS_AREA = 253: InSim circle
• MARSH_MARSHAL = 254: Restricted area
• MARSH_ROUTE = 255: Route checker