//-----------------------------------------------------------------------------
// Purpose: Vehicle dampening shared between server and client
//-----------------------------------------------------------------------------
void SharedVehicleViewSmoothing(CBasePlayer *pPlayer,
Vector *pAbsOrigin, QAngle *pAbsAngles,
bool bEnterAnimOn, bool bExitAnimOn,
const Vector &vecEyeExitEndpoint,
ViewSmoothingData_t *pData,
float *pFOV )
{
int eyeAttachmentIndex = pData->pVehicle->LookupAttachment( "vehicle_driver_eyes" );
matrix3x4_t vehicleEyePosToWorld;
Vector vehicleEyeOrigin;
QAngle vehicleEyeAngles;
pData->pVehicle->GetAttachment( eyeAttachmentIndex, vehicleEyeOrigin, vehicleEyeAngles );
AngleMatrix( vehicleEyeAngles, vehicleEyePosToWorld );
// Dampen the eye positional change as we drive around.
*pAbsAngles = pPlayer->EyeAngles();
if ( r_VehicleViewDampen.GetInt() && pData->bDampenEyePosition )
{
CPropVehicleDriveable *pDriveable = assert_cast<CPropVehicleDriveable*>(pData->pVehicle);
pDriveable->DampenEyePosition( vehicleEyeOrigin, vehicleEyeAngles );
}
// Started running an entry or exit anim?
bool bRunningAnim = ( bEnterAnimOn || bExitAnimOn );
if ( bRunningAnim && !pData->bWasRunningAnim )
{
pData->bRunningEnterExit = true;
pData->flEnterExitStartTime = gpGlobals->curtime;
pData->flEnterExitDuration = pData->pVehicle->SequenceDuration( pData->pVehicle->GetSequence() );
#ifdef CLIENT_DLL
pData->vecOriginSaved = PrevMainViewOrigin();
pData->vecAnglesSaved = PrevMainViewAngles();
#endif
// Save our initial angular error, which we will blend out over the length of the animation.
pData->vecAngleDiffSaved.x = AngleDiff( vehicleEyeAngles.x, pData->vecAnglesSaved.x );
pData->vecAngleDiffSaved.y = AngleDiff( vehicleEyeAngles.y, pData->vecAnglesSaved.y );
pData->vecAngleDiffSaved.z = AngleDiff( vehicleEyeAngles.z, pData->vecAnglesSaved.z );
pData->vecAngleDiffMin = pData->vecAngleDiffSaved;
}
pData->bWasRunningAnim = bRunningAnim;
float frac = 0;
float flFracFOV = 0;
// If we're in an enter/exit animation, blend the player's eye angles to the attachment's
if ( bRunningAnim || pData->bRunningEnterExit )
{
*pAbsAngles = vehicleEyeAngles;
// Forward integrate to determine the elapsed time in this entry/exit anim.
frac = ( gpGlobals->curtime - pData->flEnterExitStartTime ) / pData->flEnterExitDuration;
frac = clamp( frac, 0.0f, 1.0f );
flFracFOV = ( gpGlobals->curtime - pData->flEnterExitStartTime ) / ( pData->flEnterExitDuration * 0.85f );
flFracFOV = clamp( flFracFOV, 0.0f, 1.0f );
//Msg("Frac: %f\n", frac );
if ( frac < 1.0 )
{
// Blend to the desired vehicle eye origin
//Vector vecToView = (vehicleEyeOrigin - PrevMainViewOrigin());
//vehicleEyeOrigin = PrevMainViewOrigin() + (vecToView * SimpleSpline(frac));
//debugoverlay->AddBoxOverlay( vehicleEyeOrigin, -Vector(1,1,1), Vector(1,1,1), vec3_angle, 0,255,255, 64, 10 );
}
else
{
pData->bRunningEnterExit = false;
// Enter animation has finished, align view with the eye attachment point
// so they can start mouselooking around.
#if !defined ( HL2MP_DEV_DLL ) && !defined ( HL2MP_DEV_VEHICLE_FIX )
if ( !bExitAnimOn )
{
Vector localEyeOrigin;
QAngle localEyeAngles;
pData->pVehicle->GetAttachmentLocal( eyeAttachmentIndex, localEyeOrigin, localEyeAngles );
#ifdef CLIENT_DLL
engine->SetViewAngles( localEyeAngles );
#endif
}
#else
#ifdef CLIENT_DLL
pPlayer = C_BasePlayer::GetLocalPlayer();
#endif
if ( pPlayer )
{
if ( !bExitAnimOn )
{
Vector localEyeOrigin;
QAngle localEyeAngles;
pData->pVehicle->GetAttachmentLocal( eyeAttachmentIndex, localEyeOrigin, localEyeAngles );
#ifdef CLIENT_DLL
engine->SetViewAngles( localEyeAngles );
#endif
}
}
#endif
}
}
// Compute the relative rotation between the unperturbed eye attachment + the eye angles
matrix3x4_t cameraToWorld;
AngleMatrix( *pAbsAngles, cameraToWorld );
matrix3x4_t worldToEyePos;
MatrixInvert( vehicleEyePosToWorld, worldToEyePos );
matrix3x4_t vehicleCameraToEyePos;
ConcatTransforms( worldToEyePos, cameraToWorld, vehicleCameraToEyePos );
// Damp out some of the vehicle motion (neck/head would do this)
if ( pData->bClampEyeAngles )
{
RemapViewAngles( pData, vehicleEyeAngles );
}
AngleMatrix( vehicleEyeAngles, vehicleEyeOrigin, vehicleEyePosToWorld );
// Now treat the relative eye angles as being relative to this new, perturbed view position...
matrix3x4_t newCameraToWorld;
ConcatTransforms( vehicleEyePosToWorld, vehicleCameraToEyePos, newCameraToWorld );
// output new view abs angles
MatrixAngles( newCameraToWorld, *pAbsAngles );
// UNDONE: *pOrigin would already be correct in single player if the HandleView() on the server ran after vphysics
MatrixGetColumn( newCameraToWorld, 3, *pAbsOrigin );
float flDefaultFOV;
#ifdef CLIENT_DLL
flDefaultFOV = default_fov.GetFloat();
#else
flDefaultFOV = pPlayer->GetDefaultFOV();
#endif
// If we're playing an entry or exit animation...
if ( bRunningAnim || pData->bRunningEnterExit )
{
float flSplineFrac = clamp( SimpleSpline( frac ), 0.f, 1.f );
// Blend out the error between the player's initial eye angles and the animation's initial
// eye angles over the duration of the animation.
QAngle vecAngleDiffBlend = ( ( 1 - flSplineFrac ) * pData->vecAngleDiffSaved );
// If our current error is less than the error amount that we're blending
// out, use that. This lets the angles converge as quickly as possible.
QAngle vecAngleDiffCur;
vecAngleDiffCur.x = AngleDiff( vehicleEyeAngles.x, pData->vecAnglesSaved.x );
vecAngleDiffCur.y = AngleDiff( vehicleEyeAngles.y, pData->vecAnglesSaved.y );
vecAngleDiffCur.z = AngleDiff( vehicleEyeAngles.z, pData->vecAnglesSaved.z );
// In either case, never increase the error, so track the minimum error and clamp to that.
for (int i = 0; i < 3; i++)
{
if ( fabs(vecAngleDiffCur[i] ) < fabs( pData->vecAngleDiffMin[i] ) )
{
pData->vecAngleDiffMin[i] = vecAngleDiffCur[i];
}
if ( fabs(vecAngleDiffBlend[i] ) < fabs( pData->vecAngleDiffMin[i] ) )
{
pData->vecAngleDiffMin[i] = vecAngleDiffBlend[i];
}
}
// Add the error to the animation's eye angles.
*pAbsAngles -= pData->vecAngleDiffMin;
// Use this as the basis for the next error calculation.
pData->vecAnglesSaved = *pAbsAngles;
//if ( gpGlobals->frametime )
//{
// Msg("Angle : %.2f %.2f %.2f\n", target.x, target.y, target.z );
//}
//Msg("Prev: %.2f %.2f %.2f\n", pData->vecAnglesSaved.x, pData->vecAnglesSaved.y, pData->vecAnglesSaved.z );
Vector vecAbsOrigin = *pAbsOrigin;
// If we're exiting, our desired position is the server-sent exit position
if ( bExitAnimOn )
{
//debugoverlay->AddBoxOverlay( vecEyeExitEndpoint, -Vector(1,1,1), Vector(1,1,1), vec3_angle, 255,255,255, 64, 10 );
// Blend to the exit position
*pAbsOrigin = Lerp( flSplineFrac, vecAbsOrigin, vecEyeExitEndpoint );
if ( pFOV != NULL )
{
if ( pData->flFOV > flDefaultFOV )
{
*pFOV = Lerp( flFracFOV, pData->flFOV, flDefaultFOV );
}
}
}
else
{
// Blend from our starting position to the desired origin
*pAbsOrigin = Lerp( flSplineFrac, pData->vecOriginSaved, vecAbsOrigin );
if ( pFOV != NULL )
{
if ( pData->flFOV > flDefaultFOV )
{
*pFOV = Lerp( flFracFOV, flDefaultFOV, pData->flFOV );
}
}
}
}
else if ( pFOV != NULL )
{
if ( pData->flFOV > flDefaultFOV )
{
// Not running an entry/exit anim. Just use the vehicle's FOV.
*pFOV = pData->flFOV;
}
}
}
