Difference between revisions of "IS SMALL"
| Line 7: | Line 7: | ||
| category = General purpose | | category = General purpose | ||
| prev = [[IS_TINY]] | | prev = [[IS_TINY]] | ||
| − | | next = [[ | + | | next = [[IS_STA]] |
}} | }} | ||
Latest revision as of 21:50, 13 February 2026
| IS_SMALL | |
|---|---|
| General purpose 8-byte packet with a 4-byte value | |
| Overview | |
| Size | 8 |
| Type | ISP_SMALL (4) |
| Usage | both ways |
| Previous packet IS_TINY |
Next packet IS_STA |
The IS_SMALL packet is a general purpose packet comprised of 8 bytes. The packet is designed to prevent repeating a common structure which would be the same for many packets. Unlike the IS_TINY the IS_SMALL also contains the UVal, a 4 byte unsigned integer.
Packet details
| Type | Name | Description |
|---|---|---|
| byte | Size | 8 |
| byte | Type | ISP_SMALL |
| byte | ReqI | 0 unless it is an info request or a reply to an info request |
| byte | SubT | subtype, from SMALL_ enumeration (e.g. SMALL_SSP) |
| unsigned | UVal | value (e.g. for SMALL_SSP this would be the OutSim packet rate) |
Size
The size of the packet, always 8 bytes.
Type
The packet type from the ISP_ enumeration, always ISP_SMALL.
ReqI
ReqI must be set to non-zero when sending a request for information to LFS, and in turn the replying packet will contain the same value set in its ReqI. For packets sent by LFS without a request, ReqI is zero.
SubT
The packet's sub-type, which is a value from the SMALL_ enum.
- SMALL_NONE: Not used
- SMALL_SSP: Request to start sending OutSim packets at the specified interval
- SMALL_SSG: Request to start sending OutGauge packets at the specified interval
- SMALL_VTA: Send to set the current vote action, from the VOTE_ enumeration
- SMALL_TMS: Send in single-player mode to stop time, 1 means to stop and 0 to carry on. This freezes the game but is not the same as pausing, as the game must be unfrozen before any further actions can be undertaken
- SMALL_STP: Send when frozen to update the game time by the specified hundredths
- SMALL_RTP: Sent in response to an IS_TINY with a SubT of TINY_GTH. Contains the time in ms.
- SMALL_NLI: Send to set the IS_NLP/IS_MCI interval
- SMALL_ALC: Send to set allowed cars; sent in reply to IS_TINY TINY_ALC.
- SMALL_LCS: Send to set the local car's switches; sent in reply to IS_TINY TINY_LCS.
- SMALL_LCL: Send to set the local car's lights; sent in reply to IS_TINY TINY_LCL.
- SMALL_AII: Send to request a local AI car's info.
Note: SMALL_TMS and SMALL_STP are currently not available in LFS 0.8B/InSim 10.
UVal
A general purpose 4-byte unsigned integer, the meaning of which varies depending on SubT.
| Initialisation | IS_ISI | ||
|---|---|---|---|
| Version Information | IS_VER | ||
| General Purpose | IS_TINY · IS_SMALL · IS_TTC | ||
| State Reporting and Requests | IS_STA · IS_SFP · IS_ISM | ||
| Text Messages and Key Presses | IS_SCH · IS_MSO · IS_III · IS_MST · IS_MTC · IS_MSX · IS_MSL | ||
| Voting | IS_VTN | ||
| Race Tracking | IS_RST · IS_REO | ||
| Autocross | IS_AXI · IS_AXO · IS_UCO · IS_OCO · IS_AXM | ||
| Connection Tracking | IS_NCN · IS_CNL · IS_CPR · IS_ACR · IS_NCI · IS_SLC · IS_CIM | ||
| Car Tracking | IS_NPL · IS_PLP · IS_PLL · IS_LAP · IS_SPX · IS_PIT · IS_PSF · IS_PLA · IS_PEN · IS_TOC · IS_FLG · IS_PFL · IS_FIN · IS_RES · IS_NLP · IS_MCI · IS_CRS · IS_CON · IS_OBH · IS_HLV · IS_CSC | ||
| Camera Control | IS_SCC · IS_CPP | ||
| Replay Control | IS_RIP | ||
| Screenshots | IS_SSH | ||
| InSim Buttons | IS_BFN · IS_BTN · IS_BTC · IS_BTT | ||
| AI Control | IS_AIC · IS_AII | ||
| Other packets | IS_MOD · IS_CCH · IS_PLC · IS_HCP · IS_JRR · IS_MAL · IS_PLH · IS_IPB | ||
