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engine: let movevars.zmax be encoded in 24 bits

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This commit is contained in:
Alibek Omarov
2026-01-30 01:59:35 +05:00
parent d08fd5c855
commit 4804586728
1 changed files with 12 additions and 4 deletions
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16
engine/common/net_encode.c
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@@ -919,7 +919,9 @@ void Delta_Init( void )
dt = Delta_FindStructByIndex( DT_MOVEVARS_T );
Assert( dt != NULL );
if( dt->bInitialized ) return; // "movevars_t" already specified by user
if( dt->bInitialized )
return; // "movevars_t" already specified by user
// create movevars_t delta internal
Delta_AddField( dt, "gravity", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
@@ -936,9 +938,15 @@ void Delta_Init( void )
Delta_AddField( dt, "stepsize", DT_FLOAT|DT_SIGNED, 16, 16.0f, 1.0f );
Delta_AddField( dt, "maxvelocity", DT_FLOAT|DT_SIGNED, 16, 8.0f, 1.0f );
if( FBitSet( host.features, ENGINE_WRITE_LARGE_COORD ))
Delta_AddField( dt, "zmax", DT_FLOAT|DT_SIGNED, 18, 1.0f, 1.0f );
else Delta_AddField( dt, "zmax", DT_FLOAT|DT_SIGNED, 16, 1.0f, 1.0f );
// a1ba: set zmax large enough to fit 3d skybox
// this fixes an issue when mapper sets sv_zmax value high enough
// to not overflow the variable but not enough to be encoded in delta,
// thus being clamped at 16-bit signed integer max.
// by removing signed flag (zmax is always positive) and increasing it to
// 24 bits, we ensure that even these maps will not have problems with 3d
// skyboxes (that virtually have no coordinates limit)
// see comment in SV_UpdateMovevars for more details
Delta_AddField( dt, "zmax", DT_FLOAT, 24, 1.0f, 1.0f );
Delta_AddField( dt, "waveHeight", DT_FLOAT|DT_SIGNED, 16, 16.0f, 1.0f );
Delta_AddField( dt, "skyName", DT_STRING, 1, 1.0f, 1.0f );