Difference between revisions of "IS SMALL"
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| − | == | + | {{Infobox InSim packet |
| + | | description = General purpose 8-byte packet with a 4-byte value | ||
| + | | size = 8 | ||
| + | | type_key = ISP_SMALL | ||
| + | | type_value = 4 | ||
| + | | direction = in-out | ||
| + | | category = General purpose | ||
| + | | prev = [[IS_TINY]] | ||
| + | | next = [[IS_TTC]] | ||
| + | }} | ||
| − | 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. | + | 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 == | ||
{| class="wikitable" | {| class="wikitable" | ||
| Line 28: | Line 39: | ||
| value (e.g. for SMALL_SSP this would be the OutSim packet rate) | | value (e.g. for SMALL_SSP this would be the OutSim packet rate) | ||
|} | |} | ||
| − | |||
| − | |||
=== Size === | === Size === | ||
| Line 65: | Line 74: | ||
A general purpose 4-byte unsigned integer, the meaning of which varies depending on [[#SubT|SubT]]. | A general purpose 4-byte unsigned integer, the meaning of which varies depending on [[#SubT|SubT]]. | ||
| + | |||
| + | {{InSim packets}} | ||
[[Category:InSim packets]] | [[Category:InSim packets]] | ||
Revision as of 19:09, 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_TTC |
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 | ||
