struct SMFXBreakageParams {
  enum EBreakageRequestFlags {
    eBRF_Matrix = BIT(0),
    eBRF_HitPos = BIT(1),
    eBRF_HitImpulse = BIT(2),
    eBRF_Velocity = BIT(3),
    eBRF_ExplosionImpulse = BIT(4),
    eBRF_Mass = BIT(5),
    eBFR_Entity = BIT(6)
  };
public:
  uint32 m_flags;
public:
  Matrix34 m_worldTM;
public:
  Vec3 m_vHitPos;
public:
  Vec3 m_vHitImpulse;
public:
  Vec3 m_vVelocity;
public:
  float m_fExplosionImpulse;
public:
  float m_fMass;
public:
  EntityId m_nEntityId;
};

IMaterialEffects.h

enum EBreakageRequestFlags {
  eBRF_Matrix = BIT(0),
  eBRF_HitPos = BIT(1),
  eBRF_HitImpulse = BIT(2),
  eBRF_Velocity = BIT(3),
  eBRF_ExplosionImpulse = BIT(4),
  eBRF_Mass = BIT(5),
  eBFR_Entity = BIT(6)
};

IMaterialEffects.h

float m_fExplosionImpulse;

uint32 m_flags;

float m_fMass;

EntityId m_nEntityId;

Vec3 m_vHitImpulse;

Vec3 m_vHitPos;

Vec3 m_vVelocity;

Matrix34 m_worldTM;

bool CheckFlag(EBreakageRequestFlags flag) const;

Checking for flags

void ClearFlag(EBreakageRequestFlags flag);

EntityId GetEntityId() const;

float GetExplosionImpulse() const;

const Vec3& GetHitImpulse() const;

const Vec3& GetHitPos() const;

float GetMass() const;

const Matrix34& GetMatrix() const;

const Vec3& GetVelocity() const;

void SetEntityId(EntityId id);

Entity

void SetExplosionImpulse(float fExplosionImpulse);

Explosion Impulse

void SetFlag(EBreakageRequestFlags flag);

void SetHitImpulse(const Vec3& vHitImpulse);

HitImpulse

void SetHitPos(const Vec3& vHitPos);

HitPos

void SetMass(float fMass);

Mass

void SetMatrix(const Matrix34& worldTM);

Matrix

void SetVelocity(const Vec3& vVelocity);

Velocity

SMFXBreakageParams();