CharacterCamera1stPersonVehicle.c

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// *************************************************************************************
// ! CharacterCamera1stPersonVehicle - 1st person camera when character is in vehicle
// *************************************************************************************
class CharacterCamera1stPersonVehicle extends CharacterCamera1stPerson
{
    protected IEntity m_OwnerVehicle;
    protected float m_fAngleFirstPerson;
    protected float m_fAngleFirstPersonScale;
 
    //-----------------------------------------------------------------------------
    void CharacterCamera1stPersonVehicle(CameraHandlerComponent pCameraHandler)
    {
        m_ApplyHeadBob = false;
    }
        
    //-----------------------------------------------------------------------------
    override void OnActivate(ScriptedCameraItem pPrevCamera, ScriptedCameraItemResult pPrevCameraResult)
    {
        super.OnActivate(pPrevCamera, pPrevCameraResult);
        
        CharacterCamera3rdPersonVehicle characterCamera3rdPersonVehicle  = CharacterCamera3rdPersonVehicle.Cast(pPrevCamera);
        if (characterCamera3rdPersonVehicle)
        {
            m_fRollSmooth = characterCamera3rdPersonVehicle.m_fRollSmooth;
            m_fRollSmoothVel = characterCamera3rdPersonVehicle.m_fRollSmoothVel;
            m_fPitchSmooth = characterCamera3rdPersonVehicle.m_fPitchSmooth;
            m_fPitchSmoothVel = characterCamera3rdPersonVehicle.m_fPitchSmoothVel;
        }
 
        if (m_pCompartmentAccess)
        {
            BaseCompartmentSlot compartment = m_pCompartmentAccess.GetCompartment();
            if (compartment)
            {
                m_OwnerVehicle = compartment.GetOwner();
                
                if (m_OwnerVehicle)
                {
                    SCR_VehicleCameraDataComponent vehicleCamData = SCR_VehicleCameraDataComponent.Cast(m_OwnerVehicle.FindComponent(SCR_VehicleCameraDataComponent));
                    if( vehicleCamData )
                    {
                        m_fRollFactor = vehicleCamData.m_fRollFactor;
                        m_fPitchFactor = vehicleCamData.m_fPitchFactor;
                        m_fAngleFirstPerson = vehicleCamData.m_fAngleFirstPerson * Math.DEG2RAD;
                    }
 
                    if (m_ControllerComponent && m_ControllerComponent.IsGadgetInHands())
                        m_fAngleFirstPersonScale = 0;
                    else
                        m_fAngleFirstPersonScale = 1;
                }
            }
        }
        
        m_bCameraTransition = false;
    }
 
    //-----------------------------------------------------------------------------
    
    override void OnUpdate(float pDt, out ScriptedCameraItemResult pOutResult)
    {
        if (!m_bCameraTransition)
        {
            m_UseLookPositionOverrideLS = true;
 
            // Prevent camera from moving behind the character as it orbits around the head.
            float yawOffset = -0.5 * m_CharacterHeadAimingComponent.GetLookAngles()[0];
            vector additiveYaw = { yawOffset, 0.0, 0.0 };
            
            // Camera moves forward as the player looks sideways (providing better view off the shoulders when pitching down).
            const float OneBy90 = 1.0 / 90.0;
            float zOffset = -0.07 - 0.13 * Math.Clamp(Math.AbsFloat(additiveYaw[0] * OneBy90), 0.0, 1.0);
            vector offsetLS = { m_OffsetLS[0], m_OffsetLS[1], zOffset };
                        
            vector resultTM[4];
            m_CharacterHeadAimingComponent.GetLookTransformationLS(GetCameraBoneIndex(), EDirectBoneMode.RelativePosition, offsetLS, additiveYaw, resultTM);
            m_LookPositionOverrideLS = resultTM[3];
 
            m_CharacterHeadAimingComponent.SetPitchLimitReductionMultiplier(0.5); // Less aggressive pitch reduction.
        }
        
        super.OnUpdate(pDt, pOutResult);
        pOutResult.m_fUseHeading = 0.0; 
        AddVehiclePitchRoll(m_OwnerVehicle, pDt, pOutResult.m_CameraTM);
        
        // Specific case for character lying down, where assumption for world-up fails
        // If we want to allow such cases on a 'daily basis', reconsider how seating
        // and vehicle cameras work in first person :)
        if (sm_TagLyingCamera != -1 && sm_TagItemUpdateCols != -1)
        {
            CharacterAnimationComponent characterAnimationComponent = m_OwnerCharacter.GetAnimationComponent();
            if (characterAnimationComponent && characterAnimationComponent.IsPrimaryTag(sm_TagLyingCamera))
            {
                // The character has very odd orientation in this case, the entity transformation retains its world up relation,
                // but the character body is not lying flat, just chilling, so let's deploy some quick magic here:
                pOutResult.m_vBaseAngles        = m_CharacterHeadAimingComponent.GetAimingRotation();
                pOutResult.m_fUseHeading        = 0.0;
                pOutResult.m_iDirectBoneMode    = EDirectBoneMode.RelativePosition;
                pOutResult.m_iDirectBone        = GetCameraBoneIndex();
                pOutResult.m_bAllowInterpolation = true;
                
                vector additiveRotation = "0 0 0";
                vector offset = m_OffsetLS;
                m_CharacterHeadAimingComponent.GetLookTransformationLS(pOutResult.m_iDirectBone, pOutResult.m_iDirectBoneMode, offset, additiveRotation, pOutResult.m_CameraTM);
                if( m_ApplyHeadBob )
                    m_CharacterCameraHandler.AddViewBobToTransform(pOutResult.m_CameraTM, 1, false);
                
                vector rotMat[3];
                if (!characterAnimationComponent.IsPrimaryTag(sm_TagItemUpdateCols))
                    Math3D.AnglesToMatrix(Vector(0, 90, 0), rotMat);    // Already laying
                else
                {
                    vector camMatrix[4];    // Entering, exiting
                    m_OwnerCharacter.GetAnimation().GetBoneMatrix(m_OwnerCharacter.GetAnimation().GetBoneIndex("Head"), camMatrix);
                    vector camAngles = Math3D.MatrixToAngles(camMatrix);
                    Math3D.AnglesToMatrix(Vector(0, -camAngles[1], 0), rotMat);
                }
                
                //Math3D.AnglesToMatrix(Vector(0, -camAngles[1], 0), rotMat);
                Math3D.MatrixMultiply3(rotMat, pOutResult.m_CameraTM, pOutResult.m_CameraTM);
                return;
            }
        }
 
        // Rotate camera if not having gadget in hands
        if (float.AlmostEqual(m_fAngleFirstPerson, 0))
            return;
 
        // First person camera angle offset only for pilot
        Vehicle vehicle = Vehicle.Cast(m_OwnerVehicle);
        if (!vehicle || vehicle.GetPilot() != m_OwnerCharacter)
            return;
 
        if (m_ControllerComponent && m_ControllerComponent.IsGadgetInHands())
            m_fAngleFirstPersonScale -= pDt * 3;
        else
            m_fAngleFirstPersonScale += pDt * 3;
 
        m_fAngleFirstPersonScale = Math.Clamp(m_fAngleFirstPersonScale, 0, 1);
 
        SCR_Math3D.RotateAround(pOutResult.m_CameraTM, pOutResult.m_CameraTM[3], pOutResult.m_CameraTM[0], m_fAngleFirstPerson * m_fAngleFirstPersonScale, pOutResult.m_CameraTM);
    }
    
    //-----------------------------------------------------------------------------
    override void OnAfterCameraUpdate(float pDt, bool pIsKeyframe, inout vector transformMS[4])
    {
    }
    
    //----------------------------------------------------------------------------- 
    override float GetBaseFOV()
    {
        CameraManager cameraManager = GetGame().GetCameraManager();
        if (!cameraManager)
            return 0;
        
        return cameraManager.GetVehicleFOV();
    }
};
// *************************************************************************************
// ! CharacterCamera1stPersonVehicleTransition - 1st person camera when character is getting in/out vehicle
// ************************************************************************************
class CharacterCamera1stPersonVehicleTransition extends CharacterCamera1stPersonVehicle
{
    private bool m_isExiting = false;
 
    //-----------------------------------------------------------------------------
    override void OnActivate(ScriptedCameraItem pPrevCamera, ScriptedCameraItemResult pPrevCameraResult)
    {
        super.OnActivate(pPrevCamera, pPrevCameraResult);
        m_bCameraTransition = true;
        m_isExiting = false;
    }
    
    override void OnUpdate(float pDt, out ScriptedCameraItemResult pOutResult)
    {
        super.OnUpdate(pDt, pOutResult);
        if (m_pCompartmentAccess)
        {
            if (m_pCompartmentAccess.IsGettingOut())
                m_isExiting = true;
            
            if (!m_pCompartmentAccess.IsInCompartment() && m_isExiting)
            {
                pOutResult.m_bAllowInterpolation = false;
                pOutResult.m_fUseHeading         = 1.0;
            }
        }
    }
};