24 class SHIT_API SHIT_REFLECT(BlackList) RigidBody2D : public Component {

25 SHIT_REFLECT_BODY(RigidBody2D)

26 public:

32

33 RigidBody2D();

34 ~RigidBody2D() override;

35

36 void onCreate() override;

37 void onAttach() override;

38 void onDetach() override;

39 void onDestroy() override;

40

41 // --- 属性 ---

42 void setBodyType(Type type);

43 Type getBodyType() const { return m_type; }

46 void onFieldChanged(const std::string& fieldName) override;

47

48 void setGravityScale(float scale) { m_gravityScale = scale; }

49 float getGravityScale() const { return m_gravityScale; }

50

51 void setLinearDamping(float damping) { m_linearDamping = damping; }

52 float getLinearDamping() const { return m_linearDamping; }

53

54 void setFixedRotation(bool fixed) { m_fixedRotation = fixed; }

55 bool isFixedRotation() const { return m_fixedRotation; }

56

57 // --- 力的接口 ---

58 void applyForce(const Vector2& force, bool wake = true);

59 void applyForceToCenter(const Vector2& force, bool wake = true);

60 void applyImpulse(const Vector2& impulse, bool wake = true);

61 void setLinearVelocity(const Vector2& velocity);

62 Vector2 getLinearVelocity() const;

68 void setTransform(const Vector2& position, float rotationDegrees);

71 bool hasValidBody() const { return m_bodyValid; }

72

73 // --- 供 BoxCollider2D / CircleCollider2D 内部使用 ---

74 int32_t getBodyIndex() const { return m_bodyIndex; }

75 uint16_t getBodyWorld0() const { return m_bodyWorld0; }

76 uint16_t getBodyGeneration() const { return m_bodyGeneration; }

77

78 private:

79 friend class PhysicsSystem2D;

83 void ensureBody();

84

85 // b2BodyId = {int32_t index1; uint16_t world0; uint16_t generation;}

86 SHIT_META(Disable)

87 int32_t m_bodyIndex = 0;

88 SHIT_META(Disable)

89 uint16_t m_bodyWorld0 = 0;

90 SHIT_META(Disable)

91 uint16_t m_bodyGeneration = 0;

92 SHIT_META(Disable)

93 bool m_bodyValid = false;

94

95 SHIT_META(({.displayName = "Body Type", .tooltip = "Static=不动, Kinematic=用户控制, Dynamic=物理驱动"}))

96 Type m_type = Type::Static;

97 SHIT_META(({.displayName = "Gravity Scale", .tooltip = "重力影响系数", .range = {0, 10}, .step = 0.1}))

98 float m_gravityScale = 1.0f;

99 SHIT_META(({.displayName = "Linear Damping", .tooltip = "线性阻尼", .range = {0, 10}, .step = 0.1}))

100 float m_linearDamping = 0.0f;

101 SHIT_META(({.displayName = "Fixed Rotation", .tooltip = "锁定旋转"}))

102 bool m_fixedRotation = false;

103 };