D3 AdjustBodyAngles from view instead of Up/Down anim blend

Player.cpp

void idPlayer::AdjustBodyAngles( void ) {
	idMat3	lookAxis;
	idMat3	legsAxis;
	bool	blend;
	float	diff;
	float	frac;
	float	upBlend;
	float	forwardBlend;
	float	downBlend;

	if ( health < 0 ) {
		return;
	}

	blend = true;

	if ( !physicsObj.HasGroundContacts() ) {
		idealLegsYaw = 0.0f;
		legsForward = true;
	} else if ( usercmd.forwardmove < 0 ) {
		idealLegsYaw = idMath::AngleNormalize180( idVec3( -usercmd.forwardmove, usercmd.rightmove, 0.0f ).ToYaw() );
		legsForward = false;
	} else if ( usercmd.forwardmove > 0 ) {
		idealLegsYaw = idMath::AngleNormalize180( idVec3( usercmd.forwardmove, -usercmd.rightmove, 0.0f ).ToYaw() );
		legsForward = true;
	} else if ( ( usercmd.rightmove != 0 ) && physicsObj.IsCrouching() ) {
		if ( !legsForward ) {
			idealLegsYaw = idMath::AngleNormalize180( idVec3( idMath::Abs( usercmd.rightmove ), usercmd.rightmove, 0.0f ).ToYaw() );
		} else {
			idealLegsYaw = idMath::AngleNormalize180( idVec3( idMath::Abs( usercmd.rightmove ), -usercmd.rightmove, 0.0f ).ToYaw() );
		}
	} else if ( usercmd.rightmove != 0 ) {
		idealLegsYaw = 0.0f;
		legsForward = true;
	} else {
		legsForward = true;
		diff = idMath::Fabs( idealLegsYaw - legsYaw );
		idealLegsYaw = idealLegsYaw - idMath::AngleNormalize180( viewAngles.yaw - oldViewYaw );
		if ( diff < 0.1f ) {
			legsYaw = idealLegsYaw;
			blend = false;
		}
	}

	if ( !physicsObj.IsCrouching() ) {
		legsForward = true;
	}

	oldViewYaw = viewAngles.yaw;

	AI_TURN_LEFT = false;
	AI_TURN_RIGHT = false;
	if ( idealLegsYaw < -45.0f ) {
		idealLegsYaw = 0;
		AI_TURN_RIGHT = true;
		blend = true;
	} else if ( idealLegsYaw > 45.0f ) {
		idealLegsYaw = 0;
		AI_TURN_LEFT = true;
		blend = true;
	}

	if ( blend ) {
		legsYaw = legsYaw * 0.9f + idealLegsYaw * 0.1f;
	}
	legsAxis = idAngles( 0.0f, -legsYaw, 0.0f ).ToMat3();
	animator.SetJointAxis( hipJoint, JOINTMOD_WORLD, legsAxis );

    // Pitch the torso up and down based on the view pitch with a clamp
    const float maxTorsoPitch = 60.0f;
    const float torsoPitch = idMath::ClampFloat( -maxTorsoPitch, maxTorsoPitch, viewAngles.pitch );

    // Apply the pitch on the chest joint so it layers on top of the base anim
    lookAxis = idAngles( torsoPitch, 0.0f, 0.0f ).ToMat3();
    animator.SetJointAxis( chestJoint, JOINTMOD_LOCAL, lookAxis );
}