#include "includes.h"
Bones g_bones{};;
bool Bones::setup( Player* player, BoneArray* out, LagRecord* record ) {
// if the record isnt setup yet.
if( !record->m_setup ) {
// run setupbones rebuilt.
if( !BuildBones( player, 0x7FF00, record->m_bones, record ) )
return false;
// we have setup this record bones.
record->m_setup = true;
}
// record is setup.
if( out && record->m_setup )
std::memcpy( out, record->m_bones, sizeof( BoneArray ) * 128 );
return true;
}
bool Bones::BuildBones( Player* target, int mask, BoneArray* out, LagRecord* record ) {
vec3_t pos[ 128 ];
quaternion_t q[ 128 ];
vec3_t backup_origin;
ang_t backup_angles;
float backup_poses[ 24 ];
C_AnimationLayer backup_layers[ 13 ];
// get hdr.
CStudioHdr* hdr = target->GetModelPtr( );
if( !hdr )
return false;
// get ptr to bone accessor.
CBoneAccessor* accessor = &target->m_BoneAccessor( );
if( !accessor )
return false;
// store origial output matrix.
// likely cachedbonedata.
BoneArray* backup_matrix = accessor->m_pBones;
if( !backup_matrix )
return false;
// prevent the game from calling ShouldSkipAnimationFrame.
auto bSkipAnimationFrame = *reinterpret_cast< int* >( uintptr_t( target ) + 0x260 );
*reinterpret_cast< int* >( uintptr_t( target ) + 0x260 ) = NULL;
// backup original.
backup_origin = target->GetAbsOrigin( );
backup_angles = target->GetAbsAngles( );
target->GetPoseParameters( backup_poses );
target->GetAnimLayers( backup_layers );
// compute transform from raw data.
matrix3x4_t transform;
math::AngleMatrix( record->m_abs_ang, record->m_pred_origin, transform );
// set non interpolated data.
target->AddEffect( EF_NOINTERP );
target->SetAbsOrigin( record->m_pred_origin );
target->SetAbsAngles( record->m_abs_ang );
target->SetPoseParameters( record->m_poses );
target->SetAnimLayers( record->m_layers );
// force game to call AccumulateLayers - pvs fix.
m_running = true;
// set bone array for write.
accessor->m_pBones = out;
// compute and build bones.
target->StandardBlendingRules( hdr, pos, q, record->m_pred_time, mask );
uint8_t computed[ 0x100 ];
std::memset( computed, 0, 0x100 );
target->BuildTransformations( hdr, pos, q, transform, mask, computed );
// restore old matrix.
accessor->m_pBones = backup_matrix;
// restore original interpolated entity data.
target->m_fEffects() &= ~EF_NOINTERP;
target->SetAbsOrigin( backup_origin );
target->SetAbsAngles( backup_angles );
target->SetPoseParameters( backup_poses );
target->SetAnimLayers( backup_layers );
// revert to old game behavior.
m_running = false;
// allow the game to call ShouldSkipAnimationFrame.
*reinterpret_cast< int* >( uintptr_t( target ) + 0x260 ) = bSkipAnimationFrame;
return true;
}
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