// player changed, free old animation state.
if( change )
g_pMemAlloc->Free( m_serverAnimState );

// need to reset? (on respawn)
if( reset ) {
// reset animation state.
ResetAnimationState( m_serverAnimState );

// note new spawn time.
m_flSpawnTime = local->m_flSpawnTime( );
}

// need to allocate or create new due to player change.
if( allocate || change ) {
// only works with games heap alloc.
CCSGOPlayerAnimState* state = ( CCSGOPlayerAnimState* )g_pMemAlloc->Alloc( sizeof( CCSGOPlayerAnimState ) );

if( state != nullptr )
CreateAnimationState( state, local );

// used to detect if we need to recreate / reset.
m_ulEntHandle = local->GetRefEHandle( );
m_flSpawnTime = local->m_flSpawnTime( );

// note anim state for future use.
m_serverAnimState = state;
}

// run the animstate code how the server would too.
else if( !gClientState->m_nChokedCommands ) {

// back up some data to not mess with game..

UpdateAnimationState( m_serverAnimState, m_angRealAngle );

// restore that data..

// walking, delay next update by .22s.
if( m_serverAnimState->m_flSpeed > 0.1f )
m_flNextBodyUpdate = gpGlobals->curtime + 0.22f;

// calculate delta.
float delta = std::abs( Math::NormalizeAngle( m_angRealAngle - local->m_flLowerBodyYawTarget( ) ) );

// standing, update every 1.1s.
else if( delta > 35.f && gpGlobals->curtime > m_flNextBodyUpdate )
m_flNextBodyUpdate = gpGlobals->curtime + 1.1f;
}
}

void Animations::CreateAnimationState( CCSGOPlayerAnimState* state, Player* player ) {
using CreateAnimState_t = void( __thiscall* )( CCSGOPlayerAnimState*, Player* );

static auto CreateAnimState = ( CreateAnimState_t )0xca11ab1e;
if( !CreateAnimState )
return;

CreateAnimState( state, player );
}

void Animations::UpdateAnimationState( CCSGOPlayerAnimState* state, QAngle ang ) {
static auto UpdateAnimState = 0xca11ab1e;
if( !UpdateAnimState )
return;

__asm {
mov ecx, state

movss xmm1, dword ptr[ ang + 4 ]
movss xmm2, dword ptr[ ang ]

call UpdateAnimState
}
}

void Animations::ResetAnimationState( CCSGOPlayerAnimState* state ) {
using ResetAnimState_t = void( __thiscall* )( CCSGOPlayerAnimState* );

static auto ResetAnimState = ( ResetAnimState_t )0xca11ab1e;
if( !ResetAnimState )
return;