hkpConstraintAtom.h

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#pragma once
 
namespace RE
{
    class hkpConstraintMotor;
 
    struct hkpConstraintAtom
    {
    public:
        enum AtomType
        {
            kInvalid = 0,
 
            kBridge,
 
            kSetLocalTransforms,
            kSetLocalTranslations,
            kSetLocalRotations,
 
            kBallSocket,
            kStiffSpring,
 
            kLin,
            kLinSoft,
            kLinLimit,
            kLinFriction,
            kLinMotor,
 
            k2DAng,
 
            kAng,
            kAngLimit,
            kTwistLimit,
            kConeLimit,
            kAngFriction,
            kAngMotor,
 
            kRagdollMotor,
 
            kPulley,
            kRackAndPinion,
            kCogWheel,
 
            kSetupStabilization,
 
            kOverwritePivot,
 
            kContact,
 
            // modifiers
            kModifier_SoftContact,
            kModifier_MassChanger,
            kModifier_ViscousSurface,
            kModifier_MovingSurface,
            kModifier_IgnoreConstraint,
            kModifier_CenterOfMassChanger,
 
            kMAX
        };
 
        enum SolvingMethod : uint8_t
        {
            kStabilized = 0,
            kOld = 1,
        };
 
        // members
        REX::EnumSet<AtomType, uint16_t> type;
    };
    static_assert(sizeof(hkpConstraintAtom) == 0x2);
 
    struct hkpSetupStabilizationAtom : public hkpConstraintAtom
    {
        bool     enabled;   // 02
        float    maxAngle;  // 04
        uint64_t pad08;     // 08
    };
    static_assert(sizeof(hkpSetupStabilizationAtom) == 0x10);
 
    struct hkpBallSocketConstraintAtom : public hkpConstraintAtom
    {
        SolvingMethod solvingMethod;                // 02
        uint8_t       bodiesToNotify;               // 03
        hkUFloat8     velocityStabilizationFactor;  // 04
        float         maxImpulse;                   // 08
        float         inertiaStabilizationFactor;   // 0C
    };
    static_assert(sizeof(hkpBallSocketConstraintAtom) == 0x10);
 
    struct hkpSetLocalTransformsConstraintAtom : public hkpConstraintAtom
    {
        uint32_t    pad02;       // 02
        hkTransform transformA;  // 10
        hkTransform transformB;  // 50
    };
    static_assert(sizeof(hkpSetLocalTransformsConstraintAtom) == 0x90);
 
    struct hkp2dAngConstraintAtom : public hkpConstraintAtom
    {
        uint8_t freeRotationAxis;  // 02
    };
    static_assert(sizeof(hkp2dAngConstraintAtom) == 0x4);
 
    struct hkpAngLimitConstraintAtom : public hkpConstraintAtom
    {
        bool    enabled;                 // 02
        uint8_t limitAxis;               // 03
        float   minAngle;                // 04
        float   maxAngle;                // 08
        float   angularLimitsTauFactor;  // 0C
    };
    static_assert(sizeof(hkpAngLimitConstraintAtom) == 0x10);
 
    struct hkpTwistLimitConstraintAtom : public hkpConstraintAtom
    {
        bool    enabled;                 // 02
        uint8_t twistAxis;               // 03
        uint8_t refAxis;                 // 04
        float   minAngle;                // 08
        float   maxAngle;                // 0C
        float   angularLimitsTauFactor;  // 10
    };
    static_assert(sizeof(hkpTwistLimitConstraintAtom) == 0x14);
 
    struct hkpConeLimitConstraintAtom : public hkpConstraintAtom
    {
        enum MeasurementMode : uint8_t
        {
            kZeroWhenVectorsAligned = 0,
            kZeroWhenVectorsPerpendicular = 1
        };
 
        bool            enabled;                 // 02
        uint8_t         twistAxisInA;            // 03
        uint8_t         refAxisInB;              // 04
        MeasurementMode angleMeasurementMode;    // 05
        uint8_t         memOffsetToAngleOffset;  // 06
        float           minAngle;                // 08
        float           maxAngle;                // 0C
        float           angularLimitsTauFactor;  // 10
    };
    static_assert(sizeof(hkpConeLimitConstraintAtom) == 0x14);
 
    struct hkpAngFrictionConstraintAtom : public hkpConstraintAtom
    {
        bool    enabled;            // 02
        uint8_t firstFrictionAxis;  // 03
        uint8_t numFrictionAxes;    // 04
        float   maxFrictionTorque;  // 08
    };
    static_assert(sizeof(hkpAngFrictionConstraintAtom) == 0xC);
 
    struct hkpAngMotorConstraintAtom : public hkpConstraintAtom
    {
        bool                enabled;                                  // 02
        uint8_t             motorAxis;                                // 03
        int16_t             initializedOffset;                        // 04
        int16_t             previousTargetAngleOffset;                // 06
        int16_t             correspondingAngLimitSolverResultOffset;  // 08
        float               targetAngle;                              // 0C
        hkpConstraintMotor* motor;                                    // 10
    };
    static_assert(sizeof(hkpAngMotorConstraintAtom) == 0x18);
 
    struct hkpRagdollMotorConstraintAtom : public hkpConstraintAtom
    {
        bool                enabled;                     // 02
        int16_t             initializedOffset;           // 04
        int16_t             previousTargetAnglesOffset;  // 06
        hkMatrix3           target_bRca;                 // 10
        hkpConstraintMotor* motors[3];                   // 40
    };
    static_assert(sizeof(hkpRagdollMotorConstraintAtom) == 0x60);
}