Find CCSPlayerPawn_SnapViewAngles
Locate CCSPlayerPawn_SnapViewAngles in CS2 server.dll or libserver.so using IDA Pro MCP tools.
This is a non-virtual, direct-call member function (no vtable slot — emit a byte sig, not an
offset). It snaps the pawn's networked eye angle (m_angEyeAngles, CNetworkVectorBase<QAngle>)
and caches the angle + previous value into the pawn for prediction — that cache is what
distinguishes it from its sibling SnapEyeAngles.
Method
1. Reuse previous signature (fast path)
If a prior CCSPlayerPawn_SnapViewAngles.{platform}.yaml exists, try its func_sig first via
mcp__ida-pro-mcp__find_bytes. Single match → resolve to function start, skip to Step 5 to
regenerate a fresh sig and re-emit. If absent or non-unique, continue.
2. Anchor on the setang command handler
mcp__ida-pro-mcp__find_regex pattern="setang pitch yaw"
Expect: "Usage: setang pitch yaw <roll optional> <prediction sync ticks optional>\n".
Find the referencing function (the setang handler, tracked as Setang_CommandHandler in the
preprocessor pipeline):
mcp__ida-pro-mcp__xrefs_to addrs="<usage_string_addr>"
mcp__ida-pro-mcp__decompile addr="<setang_handler_addr>" include_addresses=false
3. Pick the non-teleport branch call target
The setang handler parses pitch yaw [roll] [predticks] then branches:
- Teleport / prediction-sync branch — taken when
argc >= 5 && atoi(predticks) > 0. Builds a
CPredictionEvent_Teleport (constructs + dispatches through the CPredictionEvent_Teleport_t
vtable). Ignore the call here.
- else branch — directly
return SnapViewAngles(pawn, &localQAngle) (no prediction event).
SnapViewAngles = the function called/returned in the else (non-teleport) branch. On
server.dll the same target is returned from two non-teleport returns (argc < 5 and predticks <= 0).
4. Confirm identity
Decompile the candidate and verify ALL:
- Normalizes the QAngle through a helper near the top (
normalize(a2) -> local).
- Caches angle + previous into the pawn: four stores at consecutive member offsets
(current angle, current roll/float, prior angle, prior float). Linux build 14165 example:
*(pawn+0xD98)=angle; *(pawn+0xDA4)=oldangle; *(pawn+0xDA0)=roll; *(pawn+0xDAC)=oldroll.
This prediction cache is the view signature trait (the sibling SnapEyeAngles has no cache).
- Networks the eye-angle QAngle through change-accessor helpers, guarded by the entity-handle
validity check (
handle != -1 && != -2 && global_ent_table != 0).
- Internal state byte set to the view value (linux: change-field id
48; the eye sibling uses 2).
Record func_addr. Optionally rename to CCSPlayerPawn_SnapViewAngles via mcp__ida-pro-mcp__rename.
5. Generate signature
ALWAYS use SKILL /generate-signature-for-function with addr=<func_addr> to produce a
unique IDA-style func_sig. Emit IDA style verbatim (space hex, ? wildcards) — do NOT convert
to CSS \x2A unless a gamedata.json entry is explicitly requested.
Reference sigs (build 14165 — sanity check only, regenerate per binary):
- linux:
55 48 89 E5 41 57 49 89 FF 48 89 F7 41 56 41 55 41 54 53 48 81 EC
- windows:
48 89 5C 24 ? 48 89 74 24 ? 48 89 7C 24 ? 55 48 8D 6C 24 ? 48 81 EC ? ? ? ? 48 8B DA 48 8B F1 48 8D 55
6. Write func YAML
ALWAYS use SKILL /write-func-as-yaml:
func_name: CCSPlayerPawn_SnapViewAnglesfunc_addr: <func_addr>func_sig: validated sig from step 5
Include func_va/func_rva/func_size (this function is the predecessor anchor for both
find-CCSPlayerPawn_ApplyEyeAngleNetworkChange and find-CCSPlayerPawn_SnapEyeAngles).
Preprocessor pipeline equivalent
Interactive twin of the unattended chain in ida_preprocessor_scripts/:
find-Setang_CommandHandler [xref_strings "setang pitch yaw"]
-> find-CCSPlayerPawn_SnapViewAngles [LLM_DECOMPILE off handler, non-teleport call] <- this skill
-> find-CCSPlayerPawn_ApplyEyeAngleNetworkChange [LLM_DECOMPILE off SnapViewAngles, apply call]
-> find-CCSPlayerPawn_SnapEyeAngles [xref_funcs apply-helper, exclude_funcs SnapViewAngles]
Reference YAML: references/server/Setang_CommandHandler.{platform}.yaml.
Function Characteristics
- Linkage: non-virtual, direct-call (no vtable entry)
- Binary:
server.dll / libserver.so
- Parameters:
(pawn, QAngle* angles) (+ float on linux ABI)
- Caller: the
setang console-command handler, non-teleport branch
- Distinguishing trait: caches angle + previous into the pawn (prediction); networks
m_angEyeAngles
Output YAML Format
server.dll -> CCSPlayerPawn_SnapViewAngles.windows.yamllibserver.so -> CCSPlayerPawn_SnapViewAngles.linux.yaml